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Merge remote-tracking branch 'nixos/master' into readFile-scan-references

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Théophane Hufschmitt 2022-11-14 15:00:05 +01:00
parent e7ed9ae0c7 302ddee749
commit 8b4352d79b
56 changed files with 1342 additions and 438 deletions
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5
.github/assign-by-files.yml vendored Normal file
View file

@ -0,0 +1,5 @@
---
# This files is used by https://github.com/marketplace/actions/auto-assign-reviewer-by-files
# to assign maintainers
"doc/**/*":
- fricklerhandwerk

12
.github/workflows/assign-reviewer.yml vendored Normal file
View file

@ -0,0 +1,12 @@
name: "Auto Assign"
on:
- pull_request
jobs:
assign_reviewer:
runs-on: ubuntu-latest
steps:
- uses: shufo/auto-assign-reviewer-by-files@v1.1.4
with:
config: ".github/assign-by-files.yml"
token: ${{ secrets.GITHUB_TOKEN }}

14
.github/workflows/ci.yml vendored
View file

@ -19,9 +19,9 @@ jobs:
- uses: actions/checkout@v3
with:
fetch-depth: 0
- uses: cachix/install-nix-action@v17
- uses: cachix/install-nix-action@v18
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- uses: cachix/cachix-action@v10
- uses: cachix/cachix-action@v12
if: needs.check_secrets.outputs.cachix == 'true'
with:
name: '${{ env.CACHIX_NAME }}'
@ -58,8 +58,8 @@ jobs:
with:
fetch-depth: 0
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- uses: cachix/install-nix-action@v17
- uses: cachix/cachix-action@v10
- uses: cachix/install-nix-action@v18
- uses: cachix/cachix-action@v12
with:
name: '${{ env.CACHIX_NAME }}'
signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
@ -77,7 +77,7 @@ jobs:
steps:
- uses: actions/checkout@v3
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- uses: cachix/install-nix-action@v17
- uses: cachix/install-nix-action@v18
with:
install_url: '${{needs.installer.outputs.installerURL}}'
install_options: "--tarball-url-prefix https://${{ env.CACHIX_NAME }}.cachix.org/serve"
@ -102,10 +102,10 @@ jobs:
- uses: actions/checkout@v3
with:
fetch-depth: 0
- uses: cachix/install-nix-action@v17
- uses: cachix/install-nix-action@v18
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- run: echo NIX_VERSION="$(nix --experimental-features 'nix-command flakes' eval .\#default.version | tr -d \")" >> $GITHUB_ENV
- uses: cachix/cachix-action@v10
- uses: cachix/cachix-action@v12
if: needs.check_secrets.outputs.cachix == 'true'
with:
name: '${{ env.CACHIX_NAME }}'

22
doc/manual/generate-manpage.nix
View file

@ -1,11 +1,11 @@
{ command }:
{ toplevel }:
with builtins;
with import ./utils.nix;
let
showCommand = { command, details, filename }:
showCommand = { command, details, filename, toplevel }:
let
result = ''
> **Warning** \
@ -57,14 +57,15 @@ let
maybeOptions = if details.flags == {} then "" else ''
# Options
${showOptions details.flags}
${showOptions details.flags toplevel.flags}
'';
showOptions = options:
showOptions = options: commonOptions:
let
allOptions = options // commonOptions;
showCategory = cat: ''
${if cat != "" then "**${cat}:**" else ""}
${listOptions (filterAttrs (n: v: v.category == cat) options)}
${listOptions (filterAttrs (n: v: v.category == cat) allOptions)}
'';
listOptions = opts: concatStringsSep "\n" (attrValues (mapAttrs showOption opts));
showOption = name: option:
@ -76,30 +77,33 @@ let
${option.description}
'';
categories = sort builtins.lessThan (unique (map (cmd: cmd.category) (attrValues options)));
categories = sort builtins.lessThan (unique (map (cmd: cmd.category) (attrValues allOptions)));
in concatStrings (map showCategory categories);
in squash result;
appendName = filename: name: (if filename == "nix" then "nix3" else filename) + "-" + name;
processCommand = { command, details, filename }:
processCommand = { command, details, filename, toplevel }:
let
cmd = {
inherit command;
name = filename + ".md";
value = showCommand { inherit command details filename; };
value = showCommand { inherit command details filename toplevel; };
};
subcommand = subCmd: processCommand {
command = command + " " + subCmd;
details = details.commands.${subCmd};
filename = appendName filename subCmd;
inherit toplevel;
};
in [ cmd ] ++ concatMap subcommand (attrNames details.commands or {});
parsedToplevel = builtins.fromJSON toplevel;
manpages = processCommand {
command = "nix";
details = builtins.fromJSON command;
details = parsedToplevel;
filename = "nix";
toplevel = parsedToplevel;
};
tableOfContents = let

10
doc/manual/generate-options.nix
View file

@ -11,16 +11,16 @@ concatStrings (map
+ concatStrings (map (s: " ${s}\n") (splitLines option.description)) + "\n\n"
+ (if option.documentDefault
then " **Default:** " + (
if option.value == "" || option.value == []
if option.defaultValue == "" || option.defaultValue == []
then "*empty*"
else if isBool option.value
then (if option.value then "`true`" else "`false`")
else if isBool option.defaultValue
then (if option.defaultValue then "`true`" else "`false`")
else
# n.b. a StringMap value type is specified as a string, but
# this shows the value type. The empty stringmap is "null" in
# JSON, but that converts to "{ }" here.
(if isAttrs option.value then "`\"\"`"
else "`" + toString option.value + "`")) + "\n\n"
(if isAttrs option.defaultValue then "`\"\"`"
else "`" + toString option.defaultValue + "`")) + "\n\n"
else " **Default:** *machine-specific*\n")
+ (if option.aliases != []
then " **Deprecated alias:** " + (concatStringsSep ", " (map (s: "`${s}`") option.aliases)) + "\n\n"

2
doc/manual/local.mk
View file

@ -50,7 +50,7 @@ $(d)/src/SUMMARY.md: $(d)/src/SUMMARY.md.in $(d)/src/command-ref/new-cli
$(d)/src/command-ref/new-cli: $(d)/nix.json $(d)/generate-manpage.nix $(bindir)/nix
@rm -rf $@
$(trace-gen) $(nix-eval) --write-to $@ --expr 'import doc/manual/generate-manpage.nix { command = builtins.readFile $<; }'
$(trace-gen) $(nix-eval) --write-to $@ --expr 'import doc/manual/generate-manpage.nix { toplevel = builtins.readFile $<; }'
$(d)/src/command-ref/conf-file.md: $(d)/conf-file.json $(d)/generate-options.nix $(d)/src/command-ref/conf-file-prefix.md $(bindir)/nix
@cat doc/manual/src/command-ref/conf-file-prefix.md > $@.tmp

748
doc/manual/redirects.js
View file

@ -1,330 +1,424 @@
// Redirects from old DocBook manual.
var redirects = {
"#part-advanced-topics": "advanced-topics/advanced-topics.html",
"#chap-tuning-cores-and-jobs": "advanced-topics/cores-vs-jobs.html",
"#chap-diff-hook": "advanced-topics/diff-hook.html",
"#check-dirs-are-unregistered": "advanced-topics/diff-hook.html#check-dirs-are-unregistered",
"#chap-distributed-builds": "advanced-topics/distributed-builds.html",
"#chap-post-build-hook": "advanced-topics/post-build-hook.html",
"#chap-post-build-hook-caveats": "advanced-topics/post-build-hook.html#implementation-caveats",
"#part-command-ref": "command-ref/command-ref.html",
"#conf-allow-import-from-derivation": "command-ref/conf-file.html#conf-allow-import-from-derivation",
"#conf-allow-new-privileges": "command-ref/conf-file.html#conf-allow-new-privileges",
"#conf-allowed-uris": "command-ref/conf-file.html#conf-allowed-uris",
"#conf-allowed-users": "command-ref/conf-file.html#conf-allowed-users",
"#conf-auto-optimise-store": "command-ref/conf-file.html#conf-auto-optimise-store",
"#conf-binary-cache-public-keys": "command-ref/conf-file.html#conf-binary-cache-public-keys",
"#conf-binary-caches": "command-ref/conf-file.html#conf-binary-caches",
"#conf-build-compress-log": "command-ref/conf-file.html#conf-build-compress-log",
"#conf-build-cores": "command-ref/conf-file.html#conf-build-cores",
"#conf-build-extra-chroot-dirs": "command-ref/conf-file.html#conf-build-extra-chroot-dirs",
"#conf-build-extra-sandbox-paths": "command-ref/conf-file.html#conf-build-extra-sandbox-paths",
"#conf-build-fallback": "command-ref/conf-file.html#conf-build-fallback",
"#conf-build-max-jobs": "command-ref/conf-file.html#conf-build-max-jobs",
"#conf-build-max-log-size": "command-ref/conf-file.html#conf-build-max-log-size",
"#conf-build-max-silent-time": "command-ref/conf-file.html#conf-build-max-silent-time",
"#conf-build-repeat": "command-ref/conf-file.html#conf-build-repeat",
"#conf-build-timeout": "command-ref/conf-file.html#conf-build-timeout",
"#conf-build-use-chroot": "command-ref/conf-file.html#conf-build-use-chroot",
"#conf-build-use-sandbox": "command-ref/conf-file.html#conf-build-use-sandbox",
"#conf-build-use-substitutes": "command-ref/conf-file.html#conf-build-use-substitutes",
"#conf-build-users-group": "command-ref/conf-file.html#conf-build-users-group",
"#conf-builders": "command-ref/conf-file.html#conf-builders",
"#conf-builders-use-substitutes": "command-ref/conf-file.html#conf-builders-use-substitutes",
"#conf-compress-build-log": "command-ref/conf-file.html#conf-compress-build-log",
"#conf-connect-timeout": "command-ref/conf-file.html#conf-connect-timeout",
"#conf-cores": "command-ref/conf-file.html#conf-cores",
"#conf-diff-hook": "command-ref/conf-file.html#conf-diff-hook",
"#conf-enforce-determinism": "command-ref/conf-file.html#conf-enforce-determinism",
"#conf-env-keep-derivations": "command-ref/conf-file.html#conf-env-keep-derivations",
"#conf-extra-binary-caches": "command-ref/conf-file.html#conf-extra-binary-caches",
"#conf-extra-platforms": "command-ref/conf-file.html#conf-extra-platforms",
"#conf-extra-sandbox-paths": "command-ref/conf-file.html#conf-extra-sandbox-paths",
"#conf-extra-substituters": "command-ref/conf-file.html#conf-extra-substituters",
"#conf-fallback": "command-ref/conf-file.html#conf-fallback",
"#conf-fsync-metadata": "command-ref/conf-file.html#conf-fsync-metadata",
"#conf-gc-keep-derivations": "command-ref/conf-file.html#conf-gc-keep-derivations",
"#conf-gc-keep-outputs": "command-ref/conf-file.html#conf-gc-keep-outputs",
"#conf-hashed-mirrors": "command-ref/conf-file.html#conf-hashed-mirrors",
"#conf-http-connections": "command-ref/conf-file.html#conf-http-connections",
"#conf-keep-build-log": "command-ref/conf-file.html#conf-keep-build-log",
"#conf-keep-derivations": "command-ref/conf-file.html#conf-keep-derivations",
"#conf-keep-env-derivations": "command-ref/conf-file.html#conf-keep-env-derivations",
"#conf-keep-outputs": "command-ref/conf-file.html#conf-keep-outputs",
"#conf-max-build-log-size": "command-ref/conf-file.html#conf-max-build-log-size",
"#conf-max-free": "command-ref/conf-file.html#conf-max-free",
"#conf-max-jobs": "command-ref/conf-file.html#conf-max-jobs",
"#conf-max-silent-time": "command-ref/conf-file.html#conf-max-silent-time",
"#conf-min-free": "command-ref/conf-file.html#conf-min-free",
"#conf-narinfo-cache-negative-ttl": "command-ref/conf-file.html#conf-narinfo-cache-negative-ttl",
"#conf-narinfo-cache-positive-ttl": "command-ref/conf-file.html#conf-narinfo-cache-positive-ttl",
"#conf-netrc-file": "command-ref/conf-file.html#conf-netrc-file",
"#conf-plugin-files": "command-ref/conf-file.html#conf-plugin-files",
"#conf-post-build-hook": "command-ref/conf-file.html#conf-post-build-hook",
"#conf-pre-build-hook": "command-ref/conf-file.html#conf-pre-build-hook",
"#conf-repeat": "command-ref/conf-file.html#conf-repeat",
"#conf-require-sigs": "command-ref/conf-file.html#conf-require-sigs",
"#conf-restrict-eval": "command-ref/conf-file.html#conf-restrict-eval",
"#conf-run-diff-hook": "command-ref/conf-file.html#conf-run-diff-hook",
"#conf-sandbox": "command-ref/conf-file.html#conf-sandbox",
"#conf-sandbox-dev-shm-size": "command-ref/conf-file.html#conf-sandbox-dev-shm-size",
"#conf-sandbox-paths": "command-ref/conf-file.html#conf-sandbox-paths",
"#conf-secret-key-files": "command-ref/conf-file.html#conf-secret-key-files",
"#conf-show-trace": "command-ref/conf-file.html#conf-show-trace",
"#conf-stalled-download-timeout": "command-ref/conf-file.html#conf-stalled-download-timeout",
"#conf-substitute": "command-ref/conf-file.html#conf-substitute",
"#conf-substituters": "command-ref/conf-file.html#conf-substituters",
"#conf-system": "command-ref/conf-file.html#conf-system",
"#conf-system-features": "command-ref/conf-file.html#conf-system-features",
"#conf-tarball-ttl": "command-ref/conf-file.html#conf-tarball-ttl",
"#conf-timeout": "command-ref/conf-file.html#conf-timeout",
"#conf-trace-function-calls": "command-ref/conf-file.html#conf-trace-function-calls",
"#conf-trusted-binary-caches": "command-ref/conf-file.html#conf-trusted-binary-caches",
"#conf-trusted-public-keys": "command-ref/conf-file.html#conf-trusted-public-keys",
"#conf-trusted-substituters": "command-ref/conf-file.html#conf-trusted-substituters",
"#conf-trusted-users": "command-ref/conf-file.html#conf-trusted-users",
"#extra-sandbox-paths": "command-ref/conf-file.html#extra-sandbox-paths",
"#sec-conf-file": "command-ref/conf-file.html",
"#env-NIX_PATH": "command-ref/env-common.html#env-NIX_PATH",
"#env-common": "command-ref/env-common.html",
"#envar-remote": "command-ref/env-common.html#env-NIX_REMOTE",
"#sec-common-env": "command-ref/env-common.html",
"#ch-files": "command-ref/files.html",
"#ch-main-commands": "command-ref/main-commands.html",
"#opt-out-link": "command-ref/nix-build.html#opt-out-link",
"#sec-nix-build": "command-ref/nix-build.html",
"#sec-nix-channel": "command-ref/nix-channel.html",
"#sec-nix-collect-garbage": "command-ref/nix-collect-garbage.html",
"#sec-nix-copy-closure": "command-ref/nix-copy-closure.html",
"#sec-nix-daemon": "command-ref/nix-daemon.html",
"#refsec-nix-env-install-examples": "command-ref/nix-env.html#examples",
"#rsec-nix-env-install": "command-ref/nix-env.html#operation---install",
"#rsec-nix-env-set": "command-ref/nix-env.html#operation---set",
"#rsec-nix-env-set-flag": "command-ref/nix-env.html#operation---set-flag",
"#rsec-nix-env-upgrade": "command-ref/nix-env.html#operation---upgrade",
"#sec-nix-env": "command-ref/nix-env.html",
"#ssec-version-comparisons": "command-ref/nix-env.html#versions",
"#sec-nix-hash": "command-ref/nix-hash.html",
"#sec-nix-instantiate": "command-ref/nix-instantiate.html",
"#sec-nix-prefetch-url": "command-ref/nix-prefetch-url.html",
"#sec-nix-shell": "command-ref/nix-shell.html",
"#ssec-nix-shell-shebang": "command-ref/nix-shell.html#use-as-a--interpreter",
"#nixref-queries": "command-ref/nix-store.html#queries",
"#opt-add-root": "command-ref/nix-store.html#opt-add-root",
"#refsec-nix-store-dump": "command-ref/nix-store.html#operation---dump",
"#refsec-nix-store-export": "command-ref/nix-store.html#operation---export",
"#refsec-nix-store-import": "command-ref/nix-store.html#operation---import",
"#refsec-nix-store-query": "command-ref/nix-store.html#operation---query",
"#refsec-nix-store-verify": "command-ref/nix-store.html#operation---verify",
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"#rsec-nix-store-generate-binary-cache-key": "command-ref/nix-store.html#operation---generate-binary-cache-key",
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"#opt-cores": "command-ref/opt-common.html#opt-cores",
"#opt-log-format": "command-ref/opt-common.html#opt-log-format",
"#opt-max-jobs": "command-ref/opt-common.html#opt-max-jobs",
"#opt-max-silent-time": "command-ref/opt-common.html#opt-max-silent-time",
"#opt-timeout": "command-ref/opt-common.html#opt-timeout",
"#sec-common-options": "command-ref/opt-common.html",
"#ch-utilities": "command-ref/utilities.html",
"#chap-hacking": "contributing/hacking.html",
"#adv-attr-allowSubstitutes": "language/advanced-attributes.html#adv-attr-allowSubstitutes",
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"#builtin-splitVersion": "language/builtins.html#builtins-splitVersion",
"#builtin-stringLength": "language/builtins.html#builtins-stringLength",
"#builtin-sub": "language/builtins.html#builtins-sub",
"#builtin-substring": "language/builtins.html#builtins-substring",
"#builtin-tail": "language/builtins.html#builtins-tail",
"#builtin-throw": "language/builtins.html#builtins-throw",
"#builtin-toFile": "language/builtins.html#builtins-toFile",
"#builtin-toJSON": "language/builtins.html#builtins-toJSON",
"#builtin-toPath": "language/builtins.html#builtins-toPath",
"#builtin-toString": "language/builtins.html#builtins-toString",
"#builtin-toXML": "language/builtins.html#builtins-toXML",
"#builtin-trace": "language/builtins.html#builtins-trace",
"#builtin-tryEval": "language/builtins.html#builtins-tryEval",
"#builtin-typeOf": "language/builtins.html#builtins-typeOf",
"#ssec-builtins": "language/builtins.html",
"#attr-system": "language/derivations.html#attr-system",
"#ssec-derivation": "language/derivations.html",
"#ch-expression-language": "language/index.html",
"#sec-constructs": "language/constructs.html",
"#sect-let-language": "language/constructs.html#let-language",
"#ss-functions": "language/constructs.html#functions",
"#sec-language-operators": "language/operators.html",
"#table-operators": "language/operators.html",
"#ssec-values": "language/values.html",
"#gloss-closure": "glossary.html#gloss-closure",
"#gloss-derivation": "glossary.html#gloss-derivation",
"#gloss-deriver": "glossary.html#gloss-deriver",
"#gloss-nar": "glossary.html#gloss-nar",
"#gloss-output-path": "glossary.html#gloss-output-path",
"#gloss-profile": "glossary.html#gloss-profile",
"#gloss-reachable": "glossary.html#gloss-reachable",
"#gloss-reference": "glossary.html#gloss-reference",
"#gloss-substitute": "glossary.html#gloss-substitute",
"#gloss-user-env": "glossary.html#gloss-user-env",
"#gloss-validity": "glossary.html#gloss-validity",
"#part-glossary": "glossary.html",
"#sec-building-source": "installation/building-source.html",
"#ch-env-variables": "installation/env-variables.html",
"#sec-installer-proxy-settings": "installation/env-variables.html#proxy-environment-variables",
"#sec-nix-ssl-cert-file": "installation/env-variables.html#nix_ssl_cert_file",
"#sec-nix-ssl-cert-file-with-nix-daemon-and-macos": "installation/env-variables.html#nix_ssl_cert_file-with-macos-and-the-nix-daemon",
"#chap-installation": "installation/installation.html",
"#ch-installing-binary": "installation/installing-binary.html",
"#sect-macos-installation": "installation/installing-binary.html#macos-installation",
"#sect-macos-installation-change-store-prefix": "installation/installing-binary.html#macos-installation",
"#sect-macos-installation-encrypted-volume": "installation/installing-binary.html#macos-installation",
"#sect-macos-installation-recommended-notes": "installation/installing-binary.html#macos-installation",
"#sect-macos-installation-symlink": "installation/installing-binary.html#macos-installation",
"#sect-multi-user-installation": "installation/installing-binary.html#multi-user-installation",
"#sect-nix-install-binary-tarball": "installation/installing-binary.html#installing-from-a-binary-tarball",
"#sect-nix-install-pinned-version-url": "installation/installing-binary.html#installing-a-pinned-nix-version-from-a-url",
"#sect-single-user-installation": "installation/installing-binary.html#single-user-installation",
"#ch-installing-source": "installation/installing-source.html",
"#ssec-multi-user": "installation/multi-user.html",
"#ch-nix-security": "installation/nix-security.html",
"#sec-obtaining-source": "installation/obtaining-source.html",
"#sec-prerequisites-source": "installation/prerequisites-source.html",
"#sec-single-user": "installation/single-user.html",
"#ch-supported-platforms": "installation/supported-platforms.html",
"#ch-upgrading-nix": "installation/upgrading.html",
"#ch-about-nix": "introduction.html",
"#chap-introduction": "introduction.html",
"#ch-basic-package-mgmt": "package-management/basic-package-mgmt.html",
"#ssec-binary-cache-substituter": "package-management/binary-cache-substituter.html",
"#sec-channels": "package-management/channels.html",
"#ssec-copy-closure": "package-management/copy-closure.html",
"#sec-garbage-collection": "package-management/garbage-collection.html",
"#ssec-gc-roots": "package-management/garbage-collector-roots.html",
"#chap-package-management": "package-management/package-management.html",
"#sec-profiles": "package-management/profiles.html",
"#ssec-s3-substituter": "package-management/s3-substituter.html",
"#ssec-s3-substituter-anonymous-reads": "package-management/s3-substituter.html#anonymous-reads-to-your-s3-compatible-binary-cache",
"#ssec-s3-substituter-authenticated-reads": "package-management/s3-substituter.html#authenticated-reads-to-your-s3-binary-cache",
"#ssec-s3-substituter-authenticated-writes": "package-management/s3-substituter.html#authenticated-writes-to-your-s3-compatible-binary-cache",
"#sec-sharing-packages": "package-management/sharing-packages.html",
"#ssec-ssh-substituter": "package-management/ssh-substituter.html",
"#chap-quick-start": "quick-start.html",
"#sec-relnotes": "release-notes/release-notes.html",
"#ch-relnotes-0.10.1": "release-notes/rl-0.10.1.html",
"#ch-relnotes-0.10": "release-notes/rl-0.10.html",
"#ssec-relnotes-0.11": "release-notes/rl-0.11.html",
"#ssec-relnotes-0.12": "release-notes/rl-0.12.html",
"#ssec-relnotes-0.13": "release-notes/rl-0.13.html",
"#ssec-relnotes-0.14": "release-notes/rl-0.14.html",
"#ssec-relnotes-0.15": "release-notes/rl-0.15.html",
"#ssec-relnotes-0.16": "release-notes/rl-0.16.html",
"#ch-relnotes-0.5": "release-notes/rl-0.5.html",
"#ch-relnotes-0.6": "release-notes/rl-0.6.html",
"#ch-relnotes-0.7": "release-notes/rl-0.7.html",
"#ch-relnotes-0.8.1": "release-notes/rl-0.8.1.html",
"#ch-relnotes-0.8": "release-notes/rl-0.8.html",
"#ch-relnotes-0.9.1": "release-notes/rl-0.9.1.html",
"#ch-relnotes-0.9.2": "release-notes/rl-0.9.2.html",
"#ch-relnotes-0.9": "release-notes/rl-0.9.html",
"#ssec-relnotes-1.0": "release-notes/rl-1.0.html",
"#ssec-relnotes-1.1": "release-notes/rl-1.1.html",
"#ssec-relnotes-1.10": "release-notes/rl-1.10.html",
"#ssec-relnotes-1.11.10": "release-notes/rl-1.11.10.html",
"#ssec-relnotes-1.11": "release-notes/rl-1.11.html",
"#ssec-relnotes-1.2": "release-notes/rl-1.2.html",
"#ssec-relnotes-1.3": "release-notes/rl-1.3.html",
"#ssec-relnotes-1.4": "release-notes/rl-1.4.html",
"#ssec-relnotes-1.5.1": "release-notes/rl-1.5.1.html",
"#ssec-relnotes-1.5.2": "release-notes/rl-1.5.2.html",
"#ssec-relnotes-1.5": "release-notes/rl-1.5.html",
"#ssec-relnotes-1.6.1": "release-notes/rl-1.6.1.html",
"#ssec-relnotes-1.6.0": "release-notes/rl-1.6.html",
"#ssec-relnotes-1.7": "release-notes/rl-1.7.html",
"#ssec-relnotes-1.8": "release-notes/rl-1.8.html",
"#ssec-relnotes-1.9": "release-notes/rl-1.9.html",
"#ssec-relnotes-2.0": "release-notes/rl-2.0.html",
"#ssec-relnotes-2.1": "release-notes/rl-2.1.html",
"#ssec-relnotes-2.2": "release-notes/rl-2.2.html",
"#ssec-relnotes-2.3": "release-notes/rl-2.3.html"
// redirect rules for anchors ensure backwards compatibility of URLs.
// this must be done on the client side, as web servers do not see the anchor part of the URL.
// redirections are declared as follows:
// each entry has as its key a path matching the requested URL path, relative to the mdBook document root.
//
// IMPORTANT: it must specify the full path with file name and suffix
//
// each entry is itself a set of key-value pairs, where
// - keys are anchors on the matched path.
// - values are redirection targets relative to the current path.
const redirects = {
"index.html": {
"part-advanced-topics": "advanced-topics/advanced-topics.html",
"chap-tuning-cores-and-jobs": "advanced-topics/cores-vs-jobs.html",
"chap-diff-hook": "advanced-topics/diff-hook.html",
"check-dirs-are-unregistered": "advanced-topics/diff-hook.html#check-dirs-are-unregistered",
"chap-distributed-builds": "advanced-topics/distributed-builds.html",
"chap-post-build-hook": "advanced-topics/post-build-hook.html",
"chap-post-build-hook-caveats": "advanced-topics/post-build-hook.html#implementation-caveats",
"part-command-ref": "command-ref/command-ref.html",
"conf-allow-import-from-derivation": "command-ref/conf-file.html#conf-allow-import-from-derivation",
"conf-allow-new-privileges": "command-ref/conf-file.html#conf-allow-new-privileges",
"conf-allowed-uris": "command-ref/conf-file.html#conf-allowed-uris",
"conf-allowed-users": "command-ref/conf-file.html#conf-allowed-users",
"conf-auto-optimise-store": "command-ref/conf-file.html#conf-auto-optimise-store",
"conf-binary-cache-public-keys": "command-ref/conf-file.html#conf-binary-cache-public-keys",
"conf-binary-caches": "command-ref/conf-file.html#conf-binary-caches",
"conf-build-compress-log": "command-ref/conf-file.html#conf-build-compress-log",
"conf-build-cores": "command-ref/conf-file.html#conf-build-cores",
"conf-build-extra-chroot-dirs": "command-ref/conf-file.html#conf-build-extra-chroot-dirs",
"conf-build-extra-sandbox-paths": "command-ref/conf-file.html#conf-build-extra-sandbox-paths",
"conf-build-fallback": "command-ref/conf-file.html#conf-build-fallback",
"conf-build-max-jobs": "command-ref/conf-file.html#conf-build-max-jobs",
"conf-build-max-log-size": "command-ref/conf-file.html#conf-build-max-log-size",
"conf-build-max-silent-time": "command-ref/conf-file.html#conf-build-max-silent-time",
"conf-build-repeat": "command-ref/conf-file.html#conf-build-repeat",
"conf-build-timeout": "command-ref/conf-file.html#conf-build-timeout",
"conf-build-use-chroot": "command-ref/conf-file.html#conf-build-use-chroot",
"conf-build-use-sandbox": "command-ref/conf-file.html#conf-build-use-sandbox",
"conf-build-use-substitutes": "command-ref/conf-file.html#conf-build-use-substitutes",
"conf-build-users-group": "command-ref/conf-file.html#conf-build-users-group",
"conf-builders": "command-ref/conf-file.html#conf-builders",
"conf-builders-use-substitutes": "command-ref/conf-file.html#conf-builders-use-substitutes",
"conf-compress-build-log": "command-ref/conf-file.html#conf-compress-build-log",
"conf-connect-timeout": "command-ref/conf-file.html#conf-connect-timeout",
"conf-cores": "command-ref/conf-file.html#conf-cores",
"conf-diff-hook": "command-ref/conf-file.html#conf-diff-hook",
"conf-enforce-determinism": "command-ref/conf-file.html#conf-enforce-determinism",
"conf-env-keep-derivations": "command-ref/conf-file.html#conf-env-keep-derivations",
"conf-extra-binary-caches": "command-ref/conf-file.html#conf-extra-binary-caches",
"conf-extra-platforms": "command-ref/conf-file.html#conf-extra-platforms",
"conf-extra-sandbox-paths": "command-ref/conf-file.html#conf-extra-sandbox-paths",
"conf-extra-substituters": "command-ref/conf-file.html#conf-extra-substituters",
"conf-fallback": "command-ref/conf-file.html#conf-fallback",
"conf-fsync-metadata": "command-ref/conf-file.html#conf-fsync-metadata",
"conf-gc-keep-derivations": "command-ref/conf-file.html#conf-gc-keep-derivations",
"conf-gc-keep-outputs": "command-ref/conf-file.html#conf-gc-keep-outputs",
"conf-hashed-mirrors": "command-ref/conf-file.html#conf-hashed-mirrors",
"conf-http-connections": "command-ref/conf-file.html#conf-http-connections",
"conf-keep-build-log": "command-ref/conf-file.html#conf-keep-build-log",
"conf-keep-derivations": "command-ref/conf-file.html#conf-keep-derivations",
"conf-keep-env-derivations": "command-ref/conf-file.html#conf-keep-env-derivations",
"conf-keep-outputs": "command-ref/conf-file.html#conf-keep-outputs",
"conf-max-build-log-size": "command-ref/conf-file.html#conf-max-build-log-size",
"conf-max-free": "command-ref/conf-file.html#conf-max-free",
"conf-max-jobs": "command-ref/conf-file.html#conf-max-jobs",
"conf-max-silent-time": "command-ref/conf-file.html#conf-max-silent-time",
"conf-min-free": "command-ref/conf-file.html#conf-min-free",
"conf-narinfo-cache-negative-ttl": "command-ref/conf-file.html#conf-narinfo-cache-negative-ttl",
"conf-narinfo-cache-positive-ttl": "command-ref/conf-file.html#conf-narinfo-cache-positive-ttl",
"conf-netrc-file": "command-ref/conf-file.html#conf-netrc-file",
"conf-plugin-files": "command-ref/conf-file.html#conf-plugin-files",
"conf-post-build-hook": "command-ref/conf-file.html#conf-post-build-hook",
"conf-pre-build-hook": "command-ref/conf-file.html#conf-pre-build-hook",
"conf-repeat": "command-ref/conf-file.html#conf-repeat",
"conf-require-sigs": "command-ref/conf-file.html#conf-require-sigs",
"conf-restrict-eval": "command-ref/conf-file.html#conf-restrict-eval",
"conf-run-diff-hook": "command-ref/conf-file.html#conf-run-diff-hook",
"conf-sandbox": "command-ref/conf-file.html#conf-sandbox",
"conf-sandbox-dev-shm-size": "command-ref/conf-file.html#conf-sandbox-dev-shm-size",
"conf-sandbox-paths": "command-ref/conf-file.html#conf-sandbox-paths",
"conf-secret-key-files": "command-ref/conf-file.html#conf-secret-key-files",
"conf-show-trace": "command-ref/conf-file.html#conf-show-trace",
"conf-stalled-download-timeout": "command-ref/conf-file.html#conf-stalled-download-timeout",
"conf-substitute": "command-ref/conf-file.html#conf-substitute",
"conf-substituters": "command-ref/conf-file.html#conf-substituters",
"conf-system": "command-ref/conf-file.html#conf-system",
"conf-system-features": "command-ref/conf-file.html#conf-system-features",
"conf-tarball-ttl": "command-ref/conf-file.html#conf-tarball-ttl",
"conf-timeout": "command-ref/conf-file.html#conf-timeout",
"conf-trace-function-calls": "command-ref/conf-file.html#conf-trace-function-calls",
"conf-trusted-binary-caches": "command-ref/conf-file.html#conf-trusted-binary-caches",
"conf-trusted-public-keys": "command-ref/conf-file.html#conf-trusted-public-keys",
"conf-trusted-substituters": "command-ref/conf-file.html#conf-trusted-substituters",
"conf-trusted-users": "command-ref/conf-file.html#conf-trusted-users",
"extra-sandbox-paths": "command-ref/conf-file.html#extra-sandbox-paths",
"sec-conf-file": "command-ref/conf-file.html",
"env-NIX_PATH": "command-ref/env-common.html#env-NIX_PATH",
"env-common": "command-ref/env-common.html",
"envar-remote": "command-ref/env-common.html#env-NIX_REMOTE",
"sec-common-env": "command-ref/env-common.html",
"ch-files": "command-ref/files.html",
"ch-main-commands": "command-ref/main-commands.html",
"opt-out-link": "command-ref/nix-build.html#opt-out-link",
"sec-nix-build": "command-ref/nix-build.html",
"sec-nix-channel": "command-ref/nix-channel.html",
"sec-nix-collect-garbage": "command-ref/nix-collect-garbage.html",
"sec-nix-copy-closure": "command-ref/nix-copy-closure.html",
"sec-nix-daemon": "command-ref/nix-daemon.html",
"refsec-nix-env-install-examples": "command-ref/nix-env.html#examples",
"rsec-nix-env-install": "command-ref/nix-env.html#operation---install",
"rsec-nix-env-set": "command-ref/nix-env.html#operation---set",
"rsec-nix-env-set-flag": "command-ref/nix-env.html#operation---set-flag",
"rsec-nix-env-upgrade": "command-ref/nix-env.html#operation---upgrade",
"sec-nix-env": "command-ref/nix-env.html",
"ssec-version-comparisons": "command-ref/nix-env.html#versions",
"sec-nix-hash": "command-ref/nix-hash.html",
"sec-nix-instantiate": "command-ref/nix-instantiate.html",
"sec-nix-prefetch-url": "command-ref/nix-prefetch-url.html",
"sec-nix-shell": "command-ref/nix-shell.html",
"ssec-nix-shell-shebang": "command-ref/nix-shell.html#use-as-a--interpreter",
"nixref-queries": "command-ref/nix-store.html#queries",
"opt-add-root": "command-ref/nix-store.html#opt-add-root",
"refsec-nix-store-dump": "command-ref/nix-store.html#operation---dump",
"refsec-nix-store-export": "command-ref/nix-store.html#operation---export",
"refsec-nix-store-import": "command-ref/nix-store.html#operation---import",
"refsec-nix-store-query": "command-ref/nix-store.html#operation---query",
"refsec-nix-store-verify": "command-ref/nix-store.html#operation---verify",
"rsec-nix-store-gc": "command-ref/nix-store.html#operation---gc",
"rsec-nix-store-generate-binary-cache-key": "command-ref/nix-store.html#operation---generate-binary-cache-key",
"rsec-nix-store-realise": "command-ref/nix-store.html#operation---realise",
"rsec-nix-store-serve": "command-ref/nix-store.html#operation---serve",
"sec-nix-store": "command-ref/nix-store.html",
"opt-I": "command-ref/opt-common.html#opt-I",
"opt-attr": "command-ref/opt-common.html#opt-attr",
"opt-common": "command-ref/opt-common.html",
"opt-cores": "command-ref/opt-common.html#opt-cores",
"opt-log-format": "command-ref/opt-common.html#opt-log-format",
"opt-max-jobs": "command-ref/opt-common.html#opt-max-jobs",
"opt-max-silent-time": "command-ref/opt-common.html#opt-max-silent-time",
"opt-timeout": "command-ref/opt-common.html#opt-timeout",
"sec-common-options": "command-ref/opt-common.html",
"ch-utilities": "command-ref/utilities.html",
"chap-hacking": "contributing/hacking.html",
"adv-attr-allowSubstitutes": "language/advanced-attributes.html#adv-attr-allowSubstitutes",
"adv-attr-allowedReferences": "language/advanced-attributes.html#adv-attr-allowedReferences",
"adv-attr-allowedRequisites": "language/advanced-attributes.html#adv-attr-allowedRequisites",
"adv-attr-disallowedReferences": "language/advanced-attributes.html#adv-attr-disallowedReferences",
"adv-attr-disallowedRequisites": "language/advanced-attributes.html#adv-attr-disallowedRequisites",
"adv-attr-exportReferencesGraph": "language/advanced-attributes.html#adv-attr-exportReferencesGraph",
"adv-attr-impureEnvVars": "language/advanced-attributes.html#adv-attr-impureEnvVars",
"adv-attr-outputHash": "language/advanced-attributes.html#adv-attr-outputHash",
"adv-attr-outputHashAlgo": "language/advanced-attributes.html#adv-attr-outputHashAlgo",
"adv-attr-outputHashMode": "language/advanced-attributes.html#adv-attr-outputHashMode",
"adv-attr-passAsFile": "language/advanced-attributes.html#adv-attr-passAsFile",
"adv-attr-preferLocalBuild": "language/advanced-attributes.html#adv-attr-preferLocalBuild",
"fixed-output-drvs": "language/advanced-attributes.html#adv-attr-outputHash",
"sec-advanced-attributes": "language/advanced-attributes.html",
"builtin-abort": "language/builtins.html#builtins-abort",
"builtin-add": "language/builtins.html#builtins-add",
"builtin-all": "language/builtins.html#builtins-all",
"builtin-any": "language/builtins.html#builtins-any",
"builtin-attrNames": "language/builtins.html#builtins-attrNames",
"builtin-attrValues": "language/builtins.html#builtins-attrValues",
"builtin-baseNameOf": "language/builtins.html#builtins-baseNameOf",
"builtin-bitAnd": "language/builtins.html#builtins-bitAnd",
"builtin-bitOr": "language/builtins.html#builtins-bitOr",
"builtin-bitXor": "language/builtins.html#builtins-bitXor",
"builtin-builtins": "language/builtins.html#builtins-builtins",
"builtin-compareVersions": "language/builtins.html#builtins-compareVersions",
"builtin-concatLists": "language/builtins.html#builtins-concatLists",
"builtin-concatStringsSep": "language/builtins.html#builtins-concatStringsSep",
"builtin-currentSystem": "language/builtins.html#builtins-currentSystem",
"builtin-deepSeq": "language/builtins.html#builtins-deepSeq",
"builtin-derivation": "language/builtins.html#builtins-derivation",
"builtin-dirOf": "language/builtins.html#builtins-dirOf",
"builtin-div": "language/builtins.html#builtins-div",
"builtin-elem": "language/builtins.html#builtins-elem",
"builtin-elemAt": "language/builtins.html#builtins-elemAt",
"builtin-fetchGit": "language/builtins.html#builtins-fetchGit",
"builtin-fetchTarball": "language/builtins.html#builtins-fetchTarball",
"builtin-fetchurl": "language/builtins.html#builtins-fetchurl",
"builtin-filterSource": "language/builtins.html#builtins-filterSource",
"builtin-foldl-prime": "language/builtins.html#builtins-foldl-prime",
"builtin-fromJSON": "language/builtins.html#builtins-fromJSON",
"builtin-functionArgs": "language/builtins.html#builtins-functionArgs",
"builtin-genList": "language/builtins.html#builtins-genList",
"builtin-getAttr": "language/builtins.html#builtins-getAttr",
"builtin-getEnv": "language/builtins.html#builtins-getEnv",
"builtin-hasAttr": "language/builtins.html#builtins-hasAttr",
"builtin-hashFile": "language/builtins.html#builtins-hashFile",
"builtin-hashString": "language/builtins.html#builtins-hashString",
"builtin-head": "language/builtins.html#builtins-head",
"builtin-import": "language/builtins.html#builtins-import",
"builtin-intersectAttrs": "language/builtins.html#builtins-intersectAttrs",
"builtin-isAttrs": "language/builtins.html#builtins-isAttrs",
"builtin-isBool": "language/builtins.html#builtins-isBool",
"builtin-isFloat": "language/builtins.html#builtins-isFloat",
"builtin-isFunction": "language/builtins.html#builtins-isFunction",
"builtin-isInt": "language/builtins.html#builtins-isInt",
"builtin-isList": "language/builtins.html#builtins-isList",
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"gloss-validity": "glossary.html#gloss-validity",
"part-glossary": "glossary.html",
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"ch-env-variables": "installation/env-variables.html",
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"sec-nix-ssl-cert-file": "installation/env-variables.html#nix_ssl_cert_file",
"sec-nix-ssl-cert-file-with-nix-daemon-and-macos": "installation/env-variables.html#nix_ssl_cert_file-with-macos-and-the-nix-daemon",
"chap-installation": "installation/installation.html",
"ch-installing-binary": "installation/installing-binary.html",
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"ch-installing-source": "installation/installing-source.html",
"ssec-multi-user": "installation/multi-user.html",
"ch-nix-security": "installation/nix-security.html",
"sec-obtaining-source": "installation/obtaining-source.html",
"sec-prerequisites-source": "installation/prerequisites-source.html",
"sec-single-user": "installation/single-user.html",
"ch-supported-platforms": "installation/supported-platforms.html",
"ch-upgrading-nix": "installation/upgrading.html",
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"chap-package-management": "package-management/package-management.html",
"sec-profiles": "package-management/profiles.html",
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"ssec-s3-substituter-anonymous-reads": "package-management/s3-substituter.html#anonymous-reads-to-your-s3-compatible-binary-cache",
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"sec-sharing-packages": "package-management/sharing-packages.html",
"ssec-ssh-substituter": "package-management/ssh-substituter.html",
"chap-quick-start": "quick-start.html",
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"strings": "#string",
"lists": "#list",
"attribute-sets": "#attribute-set"
}
};
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if (isRoot && redirects[document.location.hash]) {
document.location.href = path_to_root + redirects[document.location.hash];
// the following code matches the current page's URL against the set of redirects.
//
// it is written to minimize the latency between page load and redirect.
// therefore we avoid function calls, copying data, and unnecessary loops.
// IMPORTANT: we use stateful array operations and their order matters!
//
// matching URLs is more involved than it should be:
//
// 1. `document.location.pathname` can have an arbitrary prefix.
//
// 2. `path_to_root` is set by mdBook. it consists only of `../`s and
// determines the depth of `<path>` relative to the prefix:
//
// `document.location.pathname`
// |------------------------------|
// /<prefix>/<path>/[<file>[.html]][#<anchor>]
// |----|
// `path_to_root` has same number of path segments
//
// source: https://phaiax.github.io/mdBook/format/theme/index-hbs.html#data
//
// 3. the following paths are equivalent:
//
// /foo/bar/
// /foo/bar/index.html
// /foo/bar/index
//
// 4. the following paths are also equivalent:
//
// /foo/bar/baz
// /foo/bar/baz.html
//
let segments = document.location.pathname.split('/');
let file = segments.pop();
// normalize file name
if (file === '') { file = "index.html"; }
else if (!file.endsWith('.html')) { file = file + '.html'; }
segments.push(file);
// use `path_to_root` to discern prefix from path.
const depth = path_to_root.split('/').length;
// remove segments containing prefix. the following works because
// 1. the original `document.location.pathname` is absolute,
// hence first element of `segments` is always empty.
// 2. last element of splitting `path_to_root` is also always empty.
// 3. last element of `segments` is the file name.
//
// visual example:
//
// '/foo/bar/baz.html'.split('/') -> [ '', 'foo', 'bar', 'baz.html' ]
// '../'.split('/') -> [ '..', '' ]
//
// the following operations will then result in
//
// path = 'bar/baz.html'
//
segments.splice(0, segments.length - depth);
const path = segments.join('/');
// anchor starts with the hash character (`#`),
// but our redirect declarations don't, so we strip it.
// example:
// document.location.hash -> '#foo'
// document.location.hash.substring(1) -> 'foo'
const anchor = document.location.hash.substring(1);
const redirect = redirects[path];
if (redirect) {
const target = redirect[anchor];
if (target) {
document.location.href = target;
}
}

4
doc/manual/src/command-ref/nix-daemon.md
View file

@ -8,6 +8,6 @@
# Description
The Nix daemon is necessary in multi-user Nix installations. It performs
build actions and other operations on the Nix store on behalf of
The Nix daemon is necessary in multi-user Nix installations. It runs
build tasks and other operations on the Nix store on behalf of
unprivileged users.

2
doc/manual/src/command-ref/nix-store.md
View file

@ -71,7 +71,7 @@ paths. Realisation is a somewhat overloaded term:
outputs are already valid, in which case we are done
immediately. Otherwise, there may be [substitutes](../glossary.md)
that produce the outputs (e.g., by downloading them). Finally, the
outputs can be produced by performing the build action described
outputs can be produced by running the build task described
by the derivation.
- If the store path is not a derivation, realisation ensures that the

6
doc/manual/src/glossary.md
View file

@ -1,7 +1,7 @@
# Glossary
- [derivation]{#gloss-derivation}\
A description of a build action. The result of a derivation is a
A description of a build task. The result of a derivation is a
store object. Derivations are typically specified in Nix expressions
using the [`derivation` primitive](language/derivations.md). These are
translated into low-level *store derivations* (implicitly by
@ -53,8 +53,8 @@
A file that is an immediate child of the Nix store directory. These
can be regular files, but also entire directory trees. Store objects
can be sources (objects copied from outside of the store),
derivation outputs (objects produced by running a build action), or
derivations (files describing a build action).
derivation outputs (objects produced by running a build task), or
derivations (files describing a build task).
- [input-addressed store object]{#gloss-input-addressed-store-object}\
A store object produced by building a

29
doc/manual/src/installation/installing-binary.md
View file

@ -88,10 +88,24 @@ extension. The installer will also create `/etc/profile.d/nix.sh`.
### Linux
```console
sudo rm -rf /etc/profile/nix.sh /etc/nix /nix ~root/.nix-profile ~root/.nix-defexpr ~root/.nix-channels ~/.nix-profile ~/.nix-defexpr ~/.nix-channels
Remove files created by Nix:
# If you are on Linux with systemd, you will need to run:
```console
sudo rm -rf /nix /etc/nix /etc/profile/nix.sh ~root/.nix-profile ~root/.nix-defexpr ~root/.nix-channels ~/.nix-profile ~/.nix-defexpr ~/.nix-channels
```
Remove build users and their group:
```console
for i in $(seq 30001 30032); do
sudo userdel $i
done
sudo groupdel 30000
```
If you are on Linux with systemd, remove the Nix daemon service:
```console
sudo systemctl stop nix-daemon.socket
sudo systemctl stop nix-daemon.service
sudo systemctl disable nix-daemon.socket
@ -99,8 +113,13 @@ sudo systemctl disable nix-daemon.service
sudo systemctl daemon-reload
```
There may also be references to Nix in `/etc/profile`, `/etc/bashrc`,
and `/etc/zshrc` which you may remove.
There may also be references to Nix in
- `/etc/profile`
- `/etc/bashrc`
- `/etc/zshrc`
which you may remove.
### macOS

2
doc/manual/src/introduction.md
View file

@ -104,7 +104,7 @@ a currently running program.
Packages are built from _Nix expressions_, which is a simple
functional language. A Nix expression describes everything that goes
into a package build action (a “derivation”): other packages, sources,
into a package build task (a “derivation”): other packages, sources,
the build script, environment variables for the build script, etc.
Nix tries very hard to ensure that Nix expressions are
_deterministic_: building a Nix expression twice should yield the same

2
doc/manual/src/language/derivations.md
View file

@ -1,7 +1,7 @@
# Derivations
The most important built-in function is `derivation`, which is used to
describe a single derivation (a build action). It takes as input a set,
describe a single derivation (a build task). It takes as input a set,
the attributes of which specify the inputs of the build.
- There must be an attribute named [`system`]{#attr-system} whose value must be a

548
doc/manual/src/language/index.md
View file

@ -31,3 +31,551 @@ The Nix language is
Type errors are only detected when expressions are evaluated.
# Overview
This is an incomplete overview of language features, by example.
<table>
<tr>
<th>
Example
</th>
<th>
Description
</th>
</tr>
<tr>
<td>
*Basic values*
</td>
<td>
</td>
</tr>
<tr>
<td>
`"hello world"`
</td>
<td>
A string
</td>
</tr>
<tr>
<td>
```
''
multi
line
string
''
```
</td>
<td>
A multi-line string. Strips common prefixed whitespace. Evaluates to `"multi\n line\n string"`.
</td>
</tr>
<tr>
<td>
`"hello ${ { a = "world" }.a }"`
`"1 2 ${3}"`
`"${pkgs.bash}/bin/sh"`
</td>
<td>
String interpolation (expands to `"hello world"`, `"1 2 3"`, `"/nix/store/<hash>-bash-<version>/bin/sh"`)
</td>
</tr>
<tr>
<td>
`true`, `false`
</td>
<td>
Booleans
</td>
</tr>
<tr>
<td>
`null`
</td>
<td>
Null value
</td>
</tr>
<tr>
<td>
`123`
</td>
<td>
An integer
</td>
</tr>
<tr>
<td>
`3.141`
</td>
<td>
A floating point number
</td>
</tr>
<tr>
<td>
`/etc`
</td>
<td>
An absolute path
</td>
</tr>
<tr>
<td>
`./foo.png`
</td>
<td>
A path relative to the file containing this Nix expression
</td>
</tr>
<tr>
<td>
`~/.config`
</td>
<td>
A home path. Evaluates to the `"<user's home directory>/.config"`.
</td>
</tr>
<tr>
<td>
<nixpkgs>
</td>
<td>
Search path. Value determined by [`$NIX_PATH` environment variable](../command-ref/env-common.md#env-NIX_PATH).
</td>
</tr>
<tr>
<td>
*Compound values*
</td>
<td>
</td>
</tr>
<tr>
<td>
`{ x = 1; y = 2; }`
</td>
<td>
A set with attributes named `x` and `y`
</td>
</tr>
<tr>
<td>
`{ foo.bar = 1; }`
</td>
<td>
A nested set, equivalent to `{ foo = { bar = 1; }; }`
</td>
</tr>
<tr>
<td>
`rec { x = "foo"; y = x + "bar"; }`
</td>
<td>
A recursive set, equivalent to `{ x = "foo"; y = "foobar"; }`
</td>
</tr>
<tr>
<td>
`[ "foo" "bar" "baz" ]`
`[ 1 2 3 ]`
`[ (f 1) { a = 1; b = 2; } [ "c" ] ]`
</td>
<td>
Lists with three elements.
</td>
</tr>
<tr>
<td>
*Operators*
</td>
<td>
</td>
</tr>
<tr>
<td>
`"foo" + "bar"`
</td>
<td>
String concatenation
</td>
</tr>
<tr>
<td>
`1 + 2`
</td>
<td>
Integer addition
</td>
</tr>
<tr>
<td>
`"foo" == "f" + "oo"`
</td>
<td>
Equality test (evaluates to `true`)
</td>
</tr>
<tr>
<td>
`"foo" != "bar"`
</td>
<td>
Inequality test (evaluates to `true`)
</td>
</tr>
<tr>
<td>
`!true`
</td>
<td>
Boolean negation
</td>
</tr>
<tr>
<td>
`{ x = 1; y = 2; }.x`
</td>
<td>
Attribute selection (evaluates to `1`)
</td>
</tr>
<tr>
<td>
`{ x = 1; y = 2; }.z or 3`
</td>
<td>
Attribute selection with default (evaluates to `3`)
</td>
</tr>
<tr>
<td>
`{ x = 1; y = 2; } // { z = 3; }`
</td>
<td>
Merge two sets (attributes in the right-hand set taking precedence)
</td>
</tr>
<tr>
<td>
*Control structures*
</td>
<td>
</td>
</tr>
<tr>
<td>
`if 1 + 1 == 2 then "yes!" else "no!"`
</td>
<td>
Conditional expression
</td>
</tr>
<tr>
<td>
`assert 1 + 1 == 2; "yes!"`
</td>
<td>
Assertion check (evaluates to `"yes!"`).
</td>
</tr>
<tr>
<td>
`let x = "foo"; y = "bar"; in x + y`
</td>
<td>
Variable definition
</td>
</tr>
<tr>
<td>
`with builtins; head [ 1 2 3 ]`
</td>
<td>
Add all attributes from the given set to the scope (evaluates to `1`)
</td>
</tr>
<tr>
<td>
*Functions (lambdas)*
</td>
<td>
</td>
</tr>
<tr>
<td>
`x: x + 1`
</td>
<td>
A function that expects an integer and returns it increased by 1
</td>
</tr>
<tr>
<td>
`x: y: x + y`
</td>
<td>
Curried function, equivalent to `x: (y: x + y)`. Can be used like a function that takes two arguments and returns their sum.
</td>
</tr>
<tr>
<td>
`(x: x + 1) 100`
</td>
<td>
A function call (evaluates to 101)
</td>
</tr>
<tr>
<td>
`let inc = x: x + 1; in inc (inc (inc 100))`
</td>
<td>
A function bound to a variable and subsequently called by name (evaluates to 103)
</td>
</tr>
<tr>
<td>
`{ x, y }: x + y`
</td>
<td>
A function that expects a set with required attributes `x` and `y` and concatenates them
</td>
</tr>
<tr>
<td>
`{ x, y ? "bar" }: x + y`
</td>
<td>
A function that expects a set with required attribute `x` and optional `y`, using `"bar"` as default value for `y`
</td>
</tr>
<tr>
<td>
`{ x, y, ... }: x + y`
</td>
<td>
A function that expects a set with required attributes `x` and `y` and ignores any other attributes
</td>
</tr>
<tr>
<td>
`{ x, y } @ args: x + y`
`args @ { x, y }: x + y`
</td>
<td>
A function that expects a set with required attributes `x` and `y`, and binds the whole set to `args`
</td>
</tr>
<tr>
<td>
*Built-in functions*
</td>
<td>
</td>
</tr>
<tr>
<td>
`import ./foo.nix`
</td>
<td>
Load and return Nix expression in given file
</td>
</tr>
<tr>
<td>
`map (x: x + x) [ 1 2 3 ]`
</td>
<td>
Apply a function to every element of a list (evaluates to `[ 2 4 6 ]`)
</td>
</tr>
</table>

14
doc/manual/src/language/values.md
View file

@ -150,6 +150,20 @@
recognized as a path. `a.${foo}/b.${bar}` is a syntactically valid division
operation. `./a.${foo}/b.${bar}` is a path.
When a path appears in an antiquotation, and is thus coerced into a string,
the path is first copied into the Nix store and the resulting string is
the Nix store path. For instance `"${./foo.txt}" will cause `foo.txt` in
the current directory to be copied into the Nix store and result in the
string `"/nix/store/<HASH>-foo.txt"`.
Note that the Nix language assumes that all input files will remain
_unchanged_ during the course of the Nix expression evaluation.
If you for example antiquote a file path during a `nix repl` session, and
then later in the same session, after having changed the file contents,
evaluate the antiquotation with the file path again, then Nix will still
return the first store path. It will _not_ reread the file contents to
produce a different Nix store path.
- <a id="type-boolean" href="#type-boolean">Boolean</a>
*Booleans* with values `true` and `false`.

2
scripts/install-multi-user.sh
View file

@ -58,7 +58,7 @@ readonly EXTRACTED_NIX_PATH="$(dirname "$0")"
readonly ROOT_HOME=~root
if [ -t 0 ]; then
if [ -t 0 ] && [ -z "${NIX_INSTALLER_YES:-}" ]; then
readonly IS_HEADLESS='no'
else
readonly IS_HEADLESS='yes'

6
scripts/install-nix-from-closure.sh
View file

@ -71,6 +71,8 @@ while [ $# -gt 0 ]; do
# # intentional tail space
# ACTIONS="${ACTIONS}uninstall "
# ;;
--yes)
export NIX_INSTALLER_YES=1;;
--no-channel-add)
export NIX_INSTALLER_NO_CHANNEL_ADD=1;;
--daemon-user-count)
@ -90,7 +92,7 @@ while [ $# -gt 0 ]; do
shift;;
*)
{
echo "Nix Installer [--daemon|--no-daemon] [--daemon-user-count INT] [--no-channel-add] [--no-modify-profile] [--nix-extra-conf-file FILE]"
echo "Nix Installer [--daemon|--no-daemon] [--daemon-user-count INT] [--yes] [--no-channel-add] [--no-modify-profile] [--nix-extra-conf-file FILE]"
echo "Choose installation method."
echo ""
@ -104,6 +106,8 @@ while [ $# -gt 0 ]; do
echo " trivial to uninstall."
echo " (default)"
echo ""
echo " --yes: Run the script non-interactively, accepting all prompts."
echo ""
echo " --no-channel-add: Don't add any channels. nixpkgs-unstable is installed by default."
echo ""
echo " --no-modify-profile: Don't modify the user profile to automatically load nix."

2
scripts/nix-profile.fish.in
View file

@ -28,7 +28,9 @@ if test -n "$HOME" && test -n "$USER"
# Only use MANPATH if it is already set. In general `man` will just simply
# pick up `.nix-profile/share/man` because is it close to `.nix-profile/bin`
# which is in the $PATH. For more info, run `manpath -d`.
if set --query MANPATH
set --export --prepend --path MANPATH "$NIX_LINK/share/man"
end
fish_add_path --prepend --global "$NIX_LINK/bin"
set --erase NIX_LINK

4
src/build-remote/build-remote.cc
View file

@ -186,12 +186,12 @@ static int main_build_remote(int argc, char * * argv)
// build the hint template.
std::string errorText =
"Failed to find a machine for remote build!\n"
"derivation: %s\nrequired (system, features): (%s, %s)";
"derivation: %s\nrequired (system, features): (%s, [%s])";
errorText += "\n%s available machines:";
errorText += "\n(systems, maxjobs, supportedFeatures, mandatoryFeatures)";
for (unsigned int i = 0; i < machines.size(); ++i)
errorText += "\n(%s, %s, %s, %s)";
errorText += "\n([%s], %s, [%s], [%s])";
// add the template values.
std::string drvstr;

5
src/libcmd/command.cc
View file

@ -88,7 +88,8 @@ EvalCommand::EvalCommand()
{
addFlag({
.longName = "debugger",
.description = "start an interactive environment if evaluation fails",
.description = "Start an interactive environment if evaluation fails.",
.category = MixEvalArgs::category,
.handler = {&startReplOnEvalErrors, true},
});
}
@ -225,7 +226,7 @@ MixProfile::MixProfile()
{
addFlag({
.longName = "profile",
.description = "The profile to update.",
.description = "The profile to operate on.",
.labels = {"path"},
.handler = {&profile},
.completer = completePath

2
src/libcmd/common-eval-args.cc
View file

@ -13,8 +13,6 @@ namespace nix {
MixEvalArgs::MixEvalArgs()
{
auto category = "Common evaluation options";
addFlag({
.longName = "arg",
.description = "Pass the value *expr* as the argument *name* to Nix functions.",

2
src/libcmd/common-eval-args.hh
View file

@ -10,6 +10,8 @@ class Bindings;
struct MixEvalArgs : virtual Args
{
static constexpr auto category = "Common evaluation options";
MixEvalArgs();
Bindings * getAutoArgs(EvalState & state);

2
src/libcmd/repl.cc
View file

@ -1050,7 +1050,7 @@ struct CmdRepl : InstallablesCommand
evalSettings.pureEval = false;
}
void prepare()
void prepare() override
{
if (!settings.isExperimentalFeatureEnabled(Xp::ReplFlake) && !(file) && this->_installables.size() >= 1) {
warn("future versions of Nix will require using `--file` to load a file");

6
src/libexpr/eval.cc
View file

@ -904,7 +904,7 @@ void EvalState::throwEvalError(const char * s, const std::string & s2,
const std::string & s3)
{
debugThrowLastTrace(EvalError({
.msg = hintfmt(s, s2),
.msg = hintfmt(s, s2, s3),
.errPos = positions[noPos]
}));
}
@ -913,7 +913,7 @@ void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::stri
const std::string & s3)
{
debugThrowLastTrace(EvalError({
.msg = hintfmt(s, s2),
.msg = hintfmt(s, s2, s3),
.errPos = positions[pos]
}));
}
@ -922,7 +922,7 @@ void EvalState::throwEvalError(const PosIdx pos, const char * s, const std::stri
const std::string & s3, Env & env, Expr & expr)
{
debugThrow(EvalError({
.msg = hintfmt(s, s2),
.msg = hintfmt(s, s2, s3),
.errPos = positions[pos]
}), env, expr);
}

2
src/libexpr/flake/call-flake.nix
View file

@ -43,7 +43,7 @@ let
outputs = flake.outputs (inputs // { self = result; });
result = outputs // sourceInfo // { inherit inputs; inherit outputs; inherit sourceInfo; };
result = outputs // sourceInfo // { inherit inputs; inherit outputs; inherit sourceInfo; _type = "flake"; };
in
if node.flake or true then
assert builtins.isFunction flake.outputs;

4
src/libexpr/primops.cc
View file

@ -3826,8 +3826,8 @@ static RegisterPrimOp primop_parseDrvName({
.args = {"s"},
.doc = R"(
Split the string *s* into a package name and version. The package
name is everything up to but not including the first dash followed
by a digit, and the version is everything following that dash. The
name is everything up to but not including the first dash not followed
by a letter, and the version is everything following that dash. The
result is returned in a set `{ name, version }`. Thus,
`builtins.parseDrvName "nix-0.12pre12876"` returns `{ name =
"nix"; version = "0.12pre12876"; }`.

4
src/libfetchers/git.cc
View file

@ -485,6 +485,10 @@ struct GitInputScheme : InputScheme
}
input.attrs.insert_or_assign("ref", *head);
unlockedAttrs.insert_or_assign("ref", *head);
} else {
if (!input.getRev()) {
unlockedAttrs.insert_or_assign("ref", input.getRef().value());
}
}
if (auto res = getCache()->lookup(store, unlockedAttrs)) {

19
src/libfetchers/github.cc
View file

@ -262,17 +262,20 @@ struct GitHubInputScheme : GitArchiveInputScheme
DownloadUrl getDownloadUrl(const Input & input) const override
{
// FIXME: use regular /archive URLs instead? api.github.com
// might have stricter rate limits.
auto host = maybeGetStrAttr(input.attrs, "host").value_or("github.com");
auto url = fmt(
host == "github.com"
? "https://api.%s/repos/%s/%s/tarball/%s"
: "https://%s/api/v3/repos/%s/%s/tarball/%s",
host, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"),
Headers headers = makeHeadersWithAuthTokens(host);
// If we have no auth headers then we default to the public archive
// urls so we do not run into rate limits.
const auto urlFmt =
host != "github.com"
? "https://%s/api/v3/repos/%s/%s/tarball/%s"
: headers.empty()
? "https://%s/%s/%s/archive/%s.tar.gz"
: "https://api.%s/repos/%s/%s/tarball/%s";
const auto url = fmt(urlFmt, host, getStrAttr(input.attrs, "owner"), getStrAttr(input.attrs, "repo"),
input.getRev()->to_string(Base16, false));
Headers headers = makeHeadersWithAuthTokens(host);
return DownloadUrl { url, headers };
}

1
src/libmain/common-args.cc
View file

@ -32,6 +32,7 @@ MixCommonArgs::MixCommonArgs(const std::string & programName)
addFlag({
.longName = "option",
.description = "Set the Nix configuration setting *name* to *value* (overriding `nix.conf`).",
.category = miscCategory,
.labels = {"name", "value"},
.handler = {[](std::string name, std::string value) {
try {

1
src/libmain/common-args.hh
View file

@ -6,6 +6,7 @@ namespace nix {
//static constexpr auto commonArgsCategory = "Miscellaneous common options";
static constexpr auto loggingCategory = "Logging-related options";
static constexpr auto miscCategory = "Miscellaneous global options";
class MixCommonArgs : public virtual Args
{

2
src/libmain/progress-bar.cc
View file

@ -503,7 +503,7 @@ public:
return s[0];
}
virtual void setPrintBuildLogs(bool printBuildLogs)
void setPrintBuildLogs(bool printBuildLogs) override
{
this->printBuildLogs = printBuildLogs;
}

1
src/libmain/shared.cc
View file

@ -33,6 +33,7 @@
namespace nix {
char * * savedArgv;
static bool gcWarning = true;

20
src/libmain/shared.hh
View file

@ -113,5 +113,25 @@ struct PrintFreed
/* Install a SIGSEGV handler to detect stack overflows. */
void detectStackOverflow();
/* Pluggable behavior to run in case of a stack overflow.
Default value: defaultStackOverflowHandler.
This is called by the handler installed by detectStackOverflow().
This gives Nix library consumers a limit opportunity to report the error
condition. The handler should exit the process.
See defaultStackOverflowHandler() for a reference implementation.
NOTE: Use with diligence, because this runs in the signal handler, with very
limited stack space and a potentially a corrupted heap, all while the failed
thread is blocked indefinitely. All functions called must be reentrant. */
extern std::function<void(siginfo_t * info, void * ctx)> stackOverflowHandler;
/* The default, robust implementation of stackOverflowHandler.
Prints an error message directly to stderr using a syscall instead of the
logger. Exits the process immediately after. */
void defaultStackOverflowHandler(siginfo_t * info, void * ctx);
}

12
src/libmain/stack.cc
View file

@ -1,4 +1,5 @@
#include "error.hh"
#include "shared.hh"
#include <cstring>
#include <cstddef>
@ -29,9 +30,7 @@ static void sigsegvHandler(int signo, siginfo_t * info, void * ctx)
ptrdiff_t diff = (char *) info->si_addr - sp;
if (diff < 0) diff = -diff;
if (diff < 4096) {
char msg[] = "error: stack overflow (possible infinite recursion)\n";
[[gnu::unused]] auto res = write(2, msg, strlen(msg));
_exit(1); // maybe abort instead?
nix::stackOverflowHandler(info, ctx);
}
}
@ -67,5 +66,12 @@ void detectStackOverflow()
#endif
}
std::function<void(siginfo_t * info, void * ctx)> stackOverflowHandler(defaultStackOverflowHandler);
void defaultStackOverflowHandler(siginfo_t * info, void * ctx) {
char msg[] = "error: stack overflow (possible infinite recursion)\n";
[[gnu::unused]] auto res = write(2, msg, strlen(msg));
_exit(1); // maybe abort instead?
}
}

11
src/libstore/binary-cache-store.cc
View file

@ -331,6 +331,17 @@ bool BinaryCacheStore::isValidPathUncached(const StorePath & storePath)
return fileExists(narInfoFileFor(storePath));
}
std::optional<StorePath> BinaryCacheStore::queryPathFromHashPart(const std::string & hashPart)
{
auto pseudoPath = StorePath(hashPart + "-" + MissingName);
try {
auto info = queryPathInfo(pseudoPath);
return info->path;
} catch (InvalidPath &) {
return std::nullopt;
}
}
void BinaryCacheStore::narFromPath(const StorePath & storePath, Sink & sink)
{
auto info = queryPathInfo(storePath).cast<const NarInfo>();

3
src/libstore/binary-cache-store.hh
View file

@ -95,8 +95,7 @@ public:
void queryPathInfoUncached(const StorePath & path,
Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept override;
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override
{ unsupported("queryPathFromHashPart"); }
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override;
void addToStore(const ValidPathInfo & info, Source & narSource,
RepairFlag repair, CheckSigsFlag checkSigs) override;

2
src/libstore/build/hook-instance.cc
View file

@ -16,11 +16,11 @@ HookInstance::HookInstance()
buildHookArgs.pop_front();
Strings args;
args.push_back(std::string(baseNameOf(buildHook)));
for (auto & arg : buildHookArgs)
args.push_back(arg);
args.push_back(std::string(baseNameOf(settings.buildHook.get())));
args.push_back(std::to_string(verbosity));
/* Create a pipe to get the output of the child. */

7
src/libstore/build/local-derivation-goal.cc
View file

@ -1594,6 +1594,8 @@ void LocalDerivationGoal::runChild()
/* Warning: in the child we should absolutely not make any SQLite
calls! */
bool sendException = true;
try { /* child */
commonChildInit(builderOut);
@ -2050,6 +2052,8 @@ void LocalDerivationGoal::runChild()
/* Indicate that we managed to set up the build environment. */
writeFull(STDERR_FILENO, std::string("\2\n"));
sendException = false;
/* Execute the program. This should not return. */
if (drv->isBuiltin()) {
try {
@ -2103,10 +2107,13 @@ void LocalDerivationGoal::runChild()
throw SysError("executing '%1%'", drv->builder);
} catch (Error & e) {
if (sendException) {
writeFull(STDERR_FILENO, "\1\n");
FdSink sink(STDERR_FILENO);
sink << e;
sink.flush();
} else
std::cerr << e.msg();
_exit(1);
}
}

8
src/libstore/globals.cc
View file

@ -154,13 +154,9 @@ StringSet Settings::getDefaultExtraPlatforms()
// machines. Note that we can’t force processes from executing
// x86_64 in aarch64 environments or vice versa since they can
// always exec with their own binary preferences.
if (pathExists("/Library/Apple/System/Library/LaunchDaemons/com.apple.oahd.plist") ||
pathExists("/System/Library/LaunchDaemons/com.apple.oahd.plist")) {
if (std::string{SYSTEM} == "x86_64-darwin")
extraPlatforms.insert("aarch64-darwin");
else if (std::string{SYSTEM} == "aarch64-darwin")
if (std::string{SYSTEM} == "aarch64-darwin" &&
runProgram(RunOptions {.program = "arch", .args = {"-arch", "x86_64", "/usr/bin/true"}, .mergeStderrToStdout = true}).first == 0)
extraPlatforms.insert("x86_64-darwin");
}
#endif
return extraPlatforms;

2
src/libstore/ssh.cc
View file

@ -67,7 +67,7 @@ std::unique_ptr<SSHMaster::Connection> SSHMaster::startCommand(const std::string
if (fakeSSH) {
args = { "bash", "-c" };
} else {
args = { "ssh", host.c_str(), "-x", "-a" };
args = { "ssh", host.c_str(), "-x" };
addCommonSSHOpts(args);
if (socketPath != "")
args.insert(args.end(), {"-S", socketPath});

4
src/libstore/store-api.cc
View file

@ -1363,9 +1363,9 @@ std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Para
} catch (Error & e) {
return std::make_shared<LocalStore>(params);
}
warn("'/nix' does not exist, so Nix will use '%s' as a chroot store", chrootStore);
warn("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
} else
debug("'/nix' does not exist, so Nix will use '%s' as a chroot store", chrootStore);
debug("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
Store::Params params2;
params2["root"] = chrootStore;
return std::make_shared<LocalStore>(params2);

8
src/libutil/tarfile.cc
View file

@ -77,9 +77,7 @@ TarArchive::~TarArchive()
static void extract_archive(TarArchive & archive, const Path & destDir)
{
int flags = ARCHIVE_EXTRACT_FFLAGS
| ARCHIVE_EXTRACT_PERM
| ARCHIVE_EXTRACT_TIME
int flags = ARCHIVE_EXTRACT_TIME
| ARCHIVE_EXTRACT_SECURE_SYMLINKS
| ARCHIVE_EXTRACT_SECURE_NODOTDOT;
@ -98,6 +96,10 @@ static void extract_archive(TarArchive & archive, const Path & destDir)
archive_entry_copy_pathname(entry,
(destDir + "/" + name).c_str());
// sources can and do contain dirs with no rx bits
if (archive_entry_filetype(entry) == AE_IFDIR && (archive_entry_mode(entry) & 0500) != 0500)
archive_entry_set_mode(entry, archive_entry_mode(entry) | 0500);
// Patch hardlink path
const char *original_hardlink = archive_entry_hardlink(entry);
if (original_hardlink) {

4
src/nix/app.cc
View file

@ -66,7 +66,9 @@ UnresolvedApp Installable::toApp(EvalState & state)
auto type = cursor->getAttr("type")->getString();
std::string expected = !attrPath.empty() && state.symbols[attrPath[0]] == "apps" ? "app" : "derivation";
std::string expected = !attrPath.empty() &&
(state.symbols[attrPath[0]] == "apps" || state.symbols[attrPath[0]] == "defaultApp")
? "app" : "derivation";
if (type != expected)
throw Error("attribute '%s' should have type '%s'", cursor->getAttrPathStr(), expected);

2
src/nix/daemon.md
View file

@ -11,7 +11,7 @@ R""(
# Description
This command runs the Nix daemon, which is a required component in
multi-user Nix installations. It performs build actions and other
multi-user Nix installations. It runs build tasks and other
operations on the Nix store on behalf of non-root users. Usually you
don't run the daemon directly; instead it's managed by a service
management framework such as `systemd`.

9
src/nix/main.cc
View file

@ -53,7 +53,6 @@ static bool haveInternet()
}
std::string programPath;
char * * savedArgv;
struct HelpRequested { };
@ -74,6 +73,7 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
addFlag({
.longName = "help",
.description = "Show usage information.",
.category = miscCategory,
.handler = {[&]() { throw HelpRequested(); }},
});
@ -88,6 +88,7 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
addFlag({
.longName = "version",
.description = "Show version information.",
.category = miscCategory,
.handler = {[&]() { showVersion = true; }},
});
@ -95,12 +96,14 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
.longName = "offline",
.aliases = {"no-net"}, // FIXME: remove
.description = "Disable substituters and consider all previously downloaded files up-to-date.",
.category = miscCategory,
.handler = {[&]() { useNet = false; }},
});
addFlag({
.longName = "refresh",
.description = "Consider all previously downloaded files out-of-date.",
.category = miscCategory,
.handler = {[&]() { refresh = true; }},
});
}
@ -187,7 +190,7 @@ static void showHelp(std::vector<std::string> subcommand, MultiCommand & topleve
*vUtils);
auto attrs = state.buildBindings(16);
attrs.alloc("command").mkString(toplevel.toJSON().dump());
attrs.alloc("toplevel").mkString(toplevel.toJSON().dump());
auto vRes = state.allocValue();
state.callFunction(*vGenerateManpage, state.allocValue()->mkAttrs(attrs), *vRes, noPos);
@ -266,7 +269,7 @@ void mainWrapped(int argc, char * * argv)
programPath = argv[0];
auto programName = std::string(baseNameOf(programPath));
if (argc > 0 && std::string_view(argv[0]) == "__build-remote") {
if (argc > 1 && std::string_view(argv[1]) == "__build-remote") {
programName = "build-remote";
argv++; argc--;
}

39
src/nix/path-from-hash-part.cc Normal file
View file

@ -0,0 +1,39 @@
#include "command.hh"
#include "store-api.hh"
using namespace nix;
struct CmdPathFromHashPart : StoreCommand
{
std::string hashPart;
CmdPathFromHashPart()
{
expectArgs({
.label = "hash-part",
.handler = {&hashPart},
});
}
std::string description() override
{
return "get a store path from its hash part";
}
std::string doc() override
{
return
#include "path-from-hash-part.md"
;
}
void run(ref<Store> store) override
{
if (auto storePath = store->queryPathFromHashPart(hashPart))
logger->cout(store->printStorePath(*storePath));
else
throw Error("there is no store path corresponding to '%s'", hashPart);
}
};
static auto rCmdPathFromHashPart = registerCommand2<CmdPathFromHashPart>({"store", "path-from-hash-part"});

20
src/nix/path-from-hash-part.md Normal file
View file

@ -0,0 +1,20 @@
R""(
# Examples
* Return the full store path with the given hash part:
```console
# nix store path-from-hash-part --store https://cache.nixos.org/ 0i2jd68mp5g6h2sa5k9c85rb80sn8hi9
/nix/store/0i2jd68mp5g6h2sa5k9c85rb80sn8hi9-hello-2.10
```
# Description
Given the hash part of a store path (that is, the 32 characters
following `/nix/store/`), return the full store path. This is
primarily useful in the implementation of binary caches, where a
request for a `.narinfo` file only supplies the hash part
(e.g. `https://cache.nixos.org/0i2jd68mp5g6h2sa5k9c85rb80sn8hi9.narinfo`).
)""

2
src/nix/repl.md
View file

@ -36,7 +36,7 @@ R""(
Loading Installable ''...
Added 1 variables.
# nix repl --extra_experimental_features 'flakes repl-flake' nixpkgs
# nix repl --extra-experimental-features 'flakes repl-flake' nixpkgs
Loading Installable 'flake:nixpkgs#'...
Added 5 variables.

12
tests/fetchGit.sh
View file

@ -24,12 +24,14 @@ touch $repo/.gitignore
git -C $repo add hello .gitignore
git -C $repo commit -m 'Bla1'
rev1=$(git -C $repo rev-parse HEAD)
git -C $repo tag -a tag1 -m tag1
echo world > $repo/hello
git -C $repo commit -m 'Bla2' -a
git -C $repo worktree add $TEST_ROOT/worktree
echo hello >> $TEST_ROOT/worktree/hello
rev2=$(git -C $repo rev-parse HEAD)
git -C $repo tag -a tag2 -m tag2
# Fetch a worktree
unset _NIX_FORCE_HTTP
@ -217,6 +219,16 @@ rev4_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$
path9=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; name = \"foo\"; }).outPath")
[[ $path9 =~ -foo$ ]]
# Specifying a ref without a rev shouldn't pick a cached rev for a different ref
export _NIX_FORCE_HTTP=1
rev_tag1_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"refs/tags/tag1\"; }).rev")
rev_tag1=$(git -C $repo rev-parse refs/tags/tag1)
[[ $rev_tag1_nix = $rev_tag1 ]]
rev_tag2_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"refs/tags/tag2\"; }).rev")
rev_tag2=$(git -C $repo rev-parse refs/tags/tag2)
[[ $rev_tag2_nix = $rev_tag2 ]]
unset _NIX_FORCE_HTTP
# should fail if there is no repo
rm -rf $repo/.git
(! nix eval --impure --raw --expr "(builtins.fetchGit \"file://$repo\").outPath")

98
tests/github-flakes.nix
View file

@ -7,7 +7,7 @@ with import (nixpkgs + "/nixos/lib/testing-python.nix") {
let
# Generate a fake root CA and a fake api.github.com / channels.nixos.org certificate.
# Generate a fake root CA and a fake api.github.com / github.com / channels.nixos.org certificate.
cert = pkgs.runCommand "cert" { buildInputs = [ pkgs.openssl ]; }
''
mkdir -p $out
@ -18,7 +18,7 @@ let
openssl req -newkey rsa:2048 -nodes -keyout $out/server.key \
-subj "/C=CN/ST=Denial/L=Springfield/O=Dis/CN=github.com" -out server.csr
openssl x509 -req -extfile <(printf "subjectAltName=DNS:api.github.com,DNS:channels.nixos.org") \
openssl x509 -req -extfile <(printf "subjectAltName=DNS:api.github.com,DNS:github.com,DNS:channels.nixos.org") \
-days 36500 -in server.csr -CA $out/ca.crt -CAkey ca.key -CAcreateserial -out $out/server.crt
'';
@ -37,6 +37,17 @@ let
"owner": "NixOS",
"repo": "nixpkgs"
}
},
{
"from": {
"type": "indirect",
"id": "private-flake"
},
"to": {
"type": "github",
"owner": "fancy-enterprise",
"repo": "private-flake"
}
}
],
"version": 2
@ -45,20 +56,40 @@ let
destination = "/flake-registry.json";
};
api = pkgs.runCommand "nixpkgs-flake" {}
private-flake-rev = "9f1dd0df5b54a7dc75b618034482ed42ce34383d";
private-flake-api = pkgs.runCommand "private-flake" {}
''
mkdir -p $out/tarball
mkdir -p $out/{commits,tarball}
# Setup https://docs.github.com/en/rest/commits/commits#get-a-commit
echo '{"sha": "${private-flake-rev}"}' > $out/commits/HEAD
# Setup tarball download via API
dir=private-flake
mkdir $dir
echo '{ outputs = {...}: {}; }' > $dir/flake.nix
tar cfz $out/tarball/${private-flake-rev} $dir --hard-dereference
'';
nixpkgs-api = pkgs.runCommand "nixpkgs-flake" {}
''
mkdir -p $out/commits
# Setup https://docs.github.com/en/rest/commits/commits#get-a-commit
echo '{"sha": "${nixpkgs.rev}"}' > $out/commits/HEAD
'';
archive = pkgs.runCommand "nixpkgs-flake" {}
''
mkdir -p $out/archive
dir=NixOS-nixpkgs-${nixpkgs.shortRev}
cp -prd ${nixpkgs} $dir
# Set the correct timestamp in the tarball.
find $dir -print0 | xargs -0 touch -t ${builtins.substring 0 12 nixpkgs.lastModifiedDate}.${builtins.substring 12 2 nixpkgs.lastModifiedDate} --
tar cfz $out/tarball/${nixpkgs.rev} $dir --hard-dereference
mkdir -p $out/commits
echo '{"sha": "${nixpkgs.rev}"}' > $out/commits/HEAD
tar cfz $out/archive/${nixpkgs.rev}.tar.gz $dir --hard-dereference
'';
in
makeTest (
@ -93,7 +124,20 @@ makeTest (
sslServerCert = "${cert}/server.crt";
servedDirs =
[ { urlPath = "/repos/NixOS/nixpkgs";
dir = api;
dir = nixpkgs-api;
}
{ urlPath = "/repos/fancy-enterprise/private-flake";
dir = private-flake-api;
}
];
};
services.httpd.virtualHosts."github.com" =
{ forceSSL = true;
sslServerKey = "${cert}/server.key";
sslServerCert = "${cert}/server.crt";
servedDirs =
[ { urlPath = "/NixOS/nixpkgs";
dir = archive;
}
];
};
@ -107,9 +151,8 @@ makeTest (
virtualisation.memorySize = 4096;
nix.binaryCaches = lib.mkForce [ ];
nix.extraOptions = "experimental-features = nix-command flakes";
environment.systemPackages = [ pkgs.jq ];
networking.hosts.${(builtins.head nodes.github.config.networking.interfaces.eth1.ipv4.addresses).address} =
[ "channels.nixos.org" "api.github.com" ];
[ "channels.nixos.org" "api.github.com" "github.com" ];
security.pki.certificateFiles = [ "${cert}/ca.crt" ];
};
};
@ -121,22 +164,39 @@ makeTest (
start_all()
def cat_log():
github.succeed("cat /var/log/httpd/*.log >&2")
github.wait_for_unit("httpd.service")
client.succeed("curl -v https://api.github.com/ >&2")
client.succeed("nix registry list | grep nixpkgs")
client.succeed("curl -v https://github.com/ >&2")
out = client.succeed("nix registry list")
print(out)
assert "github:NixOS/nixpkgs" in out, "nixpkgs flake not found"
assert "github:fancy-enterprise/private-flake" in out, "private flake not found"
cat_log()
rev = client.succeed("nix flake info nixpkgs --json | jq -r .revision")
assert rev.strip() == "${nixpkgs.rev}", "revision mismatch"
# If no github access token is provided, nix should use the public archive url...
out = client.succeed("nix flake metadata nixpkgs --json")
print(out)
info = json.loads(out)
assert info["revision"] == "${nixpkgs.rev}", f"revision mismatch: {info['revision']} != ${nixpkgs.rev}"
cat_log()
# ... otherwise it should use the API
out = client.succeed("nix flake metadata private-flake --json --access-tokens github.com=ghp_000000000000000000000000000000000000 --tarball-ttl 0")
print(out)
info = json.loads(out)
assert info["revision"] == "${private-flake-rev}", f"revision mismatch: {info['revision']} != ${private-flake-rev}"
cat_log()
client.succeed("nix registry pin nixpkgs")
client.succeed("nix flake info nixpkgs --tarball-ttl 0 >&2")
client.succeed("nix flake metadata nixpkgs --tarball-ttl 0 >&2")
# Shut down the web server. The flake should be cached on the client.
github.succeed("systemctl stop httpd.service")
info = json.loads(client.succeed("nix flake info nixpkgs --json"))
info = json.loads(client.succeed("nix flake metadata nixpkgs --json"))
date = time.strftime("%Y%m%d%H%M%S", time.gmtime(info['lastModified']))
assert date == "${nixpkgs.lastModifiedDate}", "time mismatch"

2
tests/impure-derivations.sh
View file

@ -2,7 +2,7 @@ source common.sh
requireDaemonNewerThan "2.8pre20220311"
enableFeatures "ca-derivations ca-references impure-derivations"
enableFeatures "ca-derivations impure-derivations"
restartDaemon
set -o pipefail

1
tests/lang/eval-okay-eq.exp Normal file
View file

@ -0,0 +1 @@
true

1
tests/lang/eval-okay-eq.exp.disabled
View file

@ -1 +0,0 @@
Bool(True)

3
tests/lang/eval-okay-versions.nix
View file

@ -4,6 +4,7 @@ let
name2 = "hello";
name3 = "915resolution-0.5.2";
name4 = "xf86-video-i810-1.7.4";
name5 = "name-that-ends-with-dash--1.0";
eq = 0;
lt = builtins.sub 0 1;
@ -23,6 +24,8 @@ let
((builtins.parseDrvName name3).version == "0.5.2")
((builtins.parseDrvName name4).name == "xf86-video-i810")
((builtins.parseDrvName name4).version == "1.7.4")
((builtins.parseDrvName name5).name == "name-that-ends-with-dash")
((builtins.parseDrvName name5).version == "-1.0")
(versionTest "1.0" "2.3" lt)
(versionTest "2.1" "2.3" lt)
(versionTest "2.3" "2.3" eq)

3
tests/local.mk
View file

@ -109,7 +109,8 @@ nix_tests = \
store-ping.sh \
fetchClosure.sh \
completions.sh \
impure-derivations.sh
impure-derivations.sh \
path-from-hash-part.sh
ifeq ($(HAVE_LIBCPUID), 1)
nix_tests += compute-levels.sh

10
tests/path-from-hash-part.sh Normal file
View file

@ -0,0 +1,10 @@
source common.sh
path=$(nix build --no-link --print-out-paths -f simple.nix)
hash_part=$(basename $path)
hash_part=${hash_part:0:32}
path2=$(nix store path-from-hash-part $hash_part)
[[ $path = $path2 ]]