Commit graph

2151 commits

Author SHA1 Message Date
Isabel d2422771eb
nix flake show: add the description if it exists
(cherry picked from commit 8cd1d02f90eb9915e640c5d370d919fad9833c65)

nix flake show: Only print up to the first new line if it exists.

(cherry picked from commit 5281a44927bdb51bfe6e5de12262d815c98f6fe7)

add tests

(cherry picked from commit 74ae0fbdc70a5079a527fe143c4832d1357011f7)

Handle long strings, embedded new lines and empty descriptions

(cherry picked from commit 2ca7b3afdbbd983173a17fa0a822cf7623601367)

Account for total length of 80

(cherry picked from commit 1cc808c18cbaaf26aaae42bb1d7f7223f25dd364)

docs: add nix flake show description release note

fix: remove white space

nix flake show: trim length based on terminal size

test: account for terminal size

docs(flake-description): before and after commands; add myself to credits

Upstream-PR: https://github.com/NixOS/nix/pull/10980
Change-Id: Ie1c667dc816b3dd81e65a1f5395e57ea48ee0362
2024-07-23 13:21:15 +01:00
jade 22252825c4 Merge changes Id8b3d289,Ib75ab5b8,I3792eeb3 into main
* changes:
  Fixup a bunch of references to nixos.org manuals
  Add release notes for removing overflow from Nix language
  expr: fix a compiler warning about different signs in comparison
2024-07-19 18:52:46 +00:00
alois31 aba5f19680 Merge changes I829581a3,I0016970d,I5dac8e77,Ib7560fe5 into main
* changes:
  doc/release-notes: add for pretty printing improvements
  libexpr/print: do not show elided nested items when there are none
  libexpr/print: never show empty attrsets or derivations as «repeated»
  libexpr/print: pretty-print idempotently
2024-07-19 06:40:13 +00:00
jade 26e56780ca Fixup a bunch of references to nixos.org manuals
(plus one reference to CppNix github)

Change-Id: Id8b3d2897f3b54e286861805cfd421adc4d5de47
2024-07-18 19:27:33 +00:00
jade 10cc3b288d Add release notes for removing overflow from Nix language
Change-Id: Ib75ab5b8b4d879035d7ee7678f9cd0c491a39c0a
2024-07-18 19:27:33 +00:00
jade 5ee1e6ea98 Merge changes Ib20e9aa0,I178a038b,I29c7de04 into main
* changes:
  docs: document the actual comparison rules instead of lies
  daemon: remove workaround for macOS kernel bug that seems fixed
  daemon: fix a crash bug "FATAL: exception not rethrown"
2024-07-18 17:40:32 +00:00
alois31 768d1f29a2
doc/release-notes: add for pretty printing improvements
Change-Id: I829581a3f5b8b742e6c866dcdbbc635f91afceb5
2024-07-18 19:08:20 +02:00
alois31 7b1abf8107 Merge "doc/manual: clarify documentation related to the $$ parser bug" into main 2024-07-18 15:01:20 +00:00
alois31 72db9cd67b doc/release-notes: link the upcoming release notes again
The insertion marker comment broke the list into two parts, the first
containing only the link to the upcoming release notes and the second the
past releases. This confused the generator, leading to the first part being
discarded. Indent the marker comment so that it's syntactically part of the
preceding item, and in particular doesn't split the list any more.

Change-Id: I357c51bb03e4e0d79a76d30158615fd9eda95ea8
2024-07-17 22:12:41 +00:00
raito 67f62bcdb4 doc/release-notes: add date for major release
Change-Id: I93aab93c069bb3989c3f8d17e0862899e6f76865
Signed-off-by: Raito Bezarius <raito@lix.systems>
2024-07-17 22:12:41 +00:00
alois31 beb231784e doc/manual: clarify documentation related to the $$ parser bug
Due to a mistake in the grammar, a dollar character implicitly escapes a second
dollar character that immediately follows, so that it cannot start an
interpolation. Unfortunately, this behaviour has since come to be relied upon,
so it cannot be fixed. Furthermore, the documentation on regular strings did
not mention this behaviour at all, while in the case of indented strings it was
rather implicit.
Mention it explicitly in both cases, and describe how an interpolation can
follow a dollar character (namely, by escaping that). Since we have to touch
that section anyway, state that any character (other than n, r, and t; but
notably including `$` even if not succeeded by `{`) can be escaped using a
backslash in regular strings.

Change-Id: I7e5d68a9a4130eec98ce8218b485168f4b31a677
2024-07-17 22:01:48 +00:00
jade 702f02c31f docs: document the actual comparison rules instead of lies
Although the comparison rules are ugly and we do not like various parts
of them, we must not hide them away for only catgirls to know about, so
the documentation should actually say how they work.

Change-Id: Ib20e9aa0e7b6486ade4f401035aafd85fbb08c91
2024-07-13 01:17:14 +02:00
jade a8f443d960 docs: update to define integer overflow
Change-Id: Ie8a1b31035f2d27a220e5df2e9e178ec3b39ee68
2024-07-13 00:59:33 +02:00
eldritch horrors f0c751d4d6 Merge changes I81552018,Ieb65c133 into main
* changes:
  releng: add releaseTests flake output, test script
  add aarch64-linux as a cross-build target
2024-07-10 17:45:17 +00:00
eldritch horrors 4d8c66ec6f add aarch64-linux as a cross-build target
we want to be sure we can cross-build to aarch64 for releases, add a
target to our crossSystems list to make those cheacks easier to run.

Change-Id: Ieb65c1333a5232641ace0ba4d122fc7d528ebc04
2024-07-09 22:49:10 +02:00
Quantum Jump 6e0ca02425 Fix dry-run flag for nix-collect-garbage
`nix-collect-garbage --dry-run` previously elided the entire garbage
collection check, meaning that it would just exit the script without
printing anything.

This change makes the dry run flag instead set the GC action to
`gcReturnDead` rather than `gcDeleteDead`, and then continue with the
script. So if you set `--dry-run`, it will print the paths it *would*
have garbage collected, but not actually delete them.

I filed a bug for this: lix-project/lix#432 but then realised I could give fixing it a go myself.

Change-Id: I062dbf1a80bbab192b5fd0b3a453a0b555ad16f2
2024-07-09 13:55:05 +00:00
Qyriad 4c7165be86 distinguish between throws & errors during throw
Turns errors like this:

let
  throwMsg = a: throw (a + " invalid bar");
in throwMsg "bullshit"

error:
       … from call site
         at «string»:3:4:
            2|   throwMsg = a: throw (a + " invalid bar");
            3| in throwMsg "bullshit"
             |    ^

       … while calling 'throwMsg'
         at «string»:2:14:
            1| let
            2|   throwMsg = a: throw (a + " invalid bar");
             |              ^
            3| in throwMsg "bullshit"

       … while calling the 'throw' builtin
         at «string»:2:17:
            1| let
            2|   throwMsg = a: throw (a + " invalid bar");
             |                 ^
            3| in throwMsg "bullshit"

       error: bullshit invalid bar

into errors like this:

let
  throwMsg = a: throw (a + " invalid bar");
in throwMsg "bullshit"

error:
       … from call site
         at «string»:3:4:
            2|   throwMsg = a: throw (a + " invalid bar");
            3| in throwMsg "bullshit"
             |    ^

       … while calling 'throwMsg'
         at «string»:2:14:
            1| let
            2|   throwMsg = a: throw (a + " invalid bar");
             |              ^
            3| in throwMsg "bullshit"

       … caused by explicit throw
         at «string»:2:17:
            1| let
            2|   throwMsg = a: throw (a + " invalid bar");
             |                 ^
            3| in throwMsg "bullshit"

       error: bullshit invalid bar

Change-Id: I593688928ece20f97999d1bf03b2b46d9ac338cb
2024-07-04 17:43:03 -06:00
Qyriad 14bf54bd39 trace which part of foo.bar.baz errors
Turns errors like:

let
  somepkg.src = throw "invalid foobar";
in somepkg.src.meta

error:
       … while evaluating the attribute 'src.meta'
         at «string»:2:3:
            1| let
            2|   somepkg.src = throw "invalid foobar";
             |   ^
            3| in somepkg.src.meta

       … while calling the 'throw' builtin
         at «string»:2:17:
            1| let
            2|   somepkg.src = throw "invalid foobar";
             |                 ^
            3| in somepkg.src.meta

       error: invalid foobar

into errors like:

let
  somepkg.src = throw "invalid foobar";
in somepkg.src.meta

error:
       … while evaluating the attribute 'src.meta'
         at «string»:2:3:
            1| let
            2|   somepkg.src = throw "invalid foobar";
             |   ^
            3| in somepkg.src.meta

       … while evaluating 'somepkg.src' to select 'meta' on it
         at «string»:3:4:
            2|   somepkg.src = throw "invalid foobar";
            3| in somepkg.src.meta
             |    ^

       … while calling the 'throw' builtin
         at «string»:2:17:
            1| let
            2|   somepkg.src = throw "invalid foobar";
             |                 ^
            3| in somepkg.src.meta

       error: invalid foobar

And for type errors, from:

let
  somepkg.src = "I'm not an attrset";
in somepkg.src.meta

error:
       … while evaluating the attribute 'src.meta'
         at «string»:2:3:
            1| let
            2|   somepkg.src = "I'm not an attrset";
             |   ^
            3| in somepkg.src.meta

       … while selecting an attribute
         at «string»:3:4:
            2|   somepkg.src = "I'm not an attrset";
            3| in somepkg.src.meta
             |    ^

       error: expected a set but found a string: "I'm not an attrset"

into:

let
  somepkg.src = "I'm not an attrset";
in somepkg.src.meta

error:
       … while evaluating the attribute 'src.meta'
         at «string»:2:3:
            1| let
            2|   somepkg.src = "I'm not an attrset";
             |   ^
            3| in somepkg.src.meta

       … while selecting 'meta' on 'somepkg.src'
         at «string»:3:4:
            2|   somepkg.src = "I'm not an attrset";
            3| in somepkg.src.meta
             |    ^

       error: expected a set but found a string: "I'm not an attrset"

For the low price of an enumerate() and a lambda you too can have the
incorrect line of code actually show up in the trace!

Change-Id: Ic1491c86e33c167891bdac9adad6224784760bd6
2024-07-04 17:42:35 -06:00
Qyriad d00edfb28d trace when the foo part of foo.bar.baz errors
Turns errors like:

let
  errpkg = throw "invalid foobar";
in errpkg.meta

error:
       … while calling the 'throw' builtin
         at «string»:2:12:
            1| let
            2|   errpkg = throw "invalid foobar";
             |            ^
            3| in errpkg.meta

       error: invalid foobar

into errors like:

let
  errpkg = throw "invalid foobar";
in errpkg.meta

error:
       … while evaluating 'errpkg' to select 'meta' on it
         at «string»:3:4:
            2|   errpkg = throw "invalid foobar";
            3| in errpkg.meta
             |    ^

       … while calling the 'throw' builtin
         at «string»:2:12:
            1| let
            2|   errpkg = throw "invalid foobar";
             |            ^
            3| in errpkg.meta

       error: invalid foobar

For the low price of one try/catch, you too can have the incorrect line
of code actually show up in the trace!

Change-Id: If8d6200ec1567706669d405c34adcd7e2d2cd29d
2024-07-04 16:33:02 -06:00
Delan Azabani 865a3732fa Merge "Reject fully-qualified URLs in 'from' argument of nix registry add" into main 2024-07-02 07:20:01 +00:00
jade d3286d0990 Merge changes Ie29a8a89,I873eedcf into main
* changes:
  store: delete obsolete lsof-disabling code
  store: guess the URL of failing fixed-output derivations
2024-07-01 16:11:32 +00:00
alois31 a55112898e
libexpr/flake: allow automatic rejection of configuration options from flakes
The `allow-flake-configuration` option allows the user to control whether to
accept configuration options supplied by flakes. Unfortunately, setting this
to false really meant "ask each time" (with an option to remember the choice
for each specific option encountered). Let no mean no, and introduce (and
default to) a separate value for the "ask each time" behaviour.

Co-Authored-By: Jade Lovelace <lix@jade.fyi>
Change-Id: I7ccd67a95bfc92cffc1ebdc972d243f5191cc1b4
2024-06-30 19:28:14 +02:00
Delan Azabani b2944d93a6 Reject fully-qualified URLs in 'from' argument of nix registry add
We previously allowed you to map any flake URL to any other flake URL,
including shorthand flakerefs, indirect flake URLs like `flake:nixpkgs`,
direct flake URLs like `github:NixOS/nixpkgs`, or local paths.

But flake registry entries mapping from direct flake URLs often come
from swapping the 'from' and 'to' arguments by accident, and even when
created intentionally, they may not actually work correctly.

This patch rejects those URLs (and fully-qualified flake: URLs), making
it harder to swap the arguments by accident.

Fixes #181.

Change-Id: I24713643a534166c052719b8770a4edfcfdb8cf3
2024-06-29 05:11:31 +00:00
jade d85309f7ca store: delete obsolete lsof-disabling code
Since Ifa0adda7984e, we don't use this code anymore on macOS, so we have
no reason to have a knob to disable it anymore.

Change-Id: Ie29a8a8978d9aefd4551895f4f9b3cc0827496df
2024-06-27 22:53:36 -07:00
jade d92712673b store: guess the URL of failing fixed-output derivations
This is a shameless layering violation in favour of UX. It falls back
trivially to "unknown", so it's purely a UX feature.

Diagnostic sample:

```
error: hash mismatch in fixed-output derivation '/nix/store/sjfw324j4533lwnpmr5z4icpb85r63ai-x1.drv':
        likely URL: https://meow.puppy.forge/puppy.tar.gz
         specified: sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
            got:    sha256-a1Qvp3FOOkWpL9kFHgugU1ok5UtRPSu+NwCZKbbaEro=
```

Change-Id: I873eedcf7984ab23f57a6754be00232b5cb5b02c
2024-06-27 22:44:16 -07:00
jade 77c5364596 Merge "doc/hacking: fix up some outdated info about cross, hydra links" into main 2024-06-26 22:11:36 +00:00
jade 9afb0fe41c Merge changes I476a2516,I8a274227 into main
* changes:
  doc/hacking: fix internal api docs section to say to enable it
  doc: Add more about the release note generator
2024-06-26 17:34:45 +00:00
jade 85c1241201 doc/hacking: fix up some outdated info about cross, hydra links
We would like to build these with Hydra but we do not currently have a
Hydra to build them with conveniently.

Change-Id: I0832a33881138dd1caab3805df7ad097db347e62
2024-06-25 21:46:26 -07:00
jade 33d53c4983 doc/hacking: fix internal api docs section to say to enable it
I filed a bug to build these in releng in the future:
lix-project/lix#422

Change-Id: I476a2516cc2be382d4b7c8529a02f9212a78fdb2
2024-06-25 21:26:18 -07:00
jade e537678f1e doc: Add more about the release note generator
Change-Id: I8a274227cb1b05d442d3f644603dd2844ecc9d05
2024-06-25 21:22:37 -07:00
jade 4ac2c496d4 Merge "change shebangs of all .sh scripts to bash" into main 2024-06-25 22:18:26 +00:00
jade e19f27917c Add some release notes for things we did
Change-Id: If0ddec6b64a43c3d8f6cae39e0292863f3b49401
2024-06-24 16:26:12 -07:00
vigress8 c7af89c797 change shebangs of all .sh scripts to bash
On operating systems where /bin/sh is not Bash, some scripts are invalid
because of bashisms, and building Lix fails with errors like this:
`render-manpage.sh: 3: set: Illegal option -o pipefail`
This modifies all scripts that use a `/bin/sh` shebang to `/usr/bin/env
bash`, including currently POSIX-compliant ones, to prevent any future
confusion.

Change-Id: Ia074cc6db42d40fc59a63726f6194ea0149ea5e0
2024-06-24 14:00:43 -07:00
Robert Hensing d86009bd76 Add build-dir setting, clean up default TMPDIR handling
This is a squash of upstream PRs #10303, #10312 and #10883.

fix: Treat empty TMPDIR as unset

Fixes an instance of

    nix: src/libutil/util.cc:139: nix::Path nix::canonPath(PathView, bool): Assertion `path != ""' failed.

... which I've been getting in one of my shells for some reason.
I have yet to find out why TMPDIR was empty, but it's no reason for
Nix to break.

(cherry picked from commit c3fb2aa1f9d1fa756dac38d3588c836c5a5395dc)

fix: Treat empty XDG_RUNTIME_DIR as unset

See preceding commit. Not observed in the wild, but is sensible
and consistent with TMPDIR behavior.

(cherry picked from commit b9e7f5aa2df3f0e223f5c44b8089cbf9b81be691)

local-derivation-goal.cc: Reuse defaultTempDir()

(cherry picked from commit fd31945742710984de22805ee8d97fbd83c3f8eb)

fix: remove usage of XDG_RUNTIME_DIR for TMP

(cherry picked from commit 1363f51bcb24ab9948b7b5093490a009947f7453)

tests/functional: Add count()

(cherry picked from commit 6221770c9de4d28137206bdcd1a67eea12e1e499)

Remove uncalled for message

(cherry picked from commit b1fe388d33530f0157dcf9f461348b61eda13228)

Add build-dir setting

(cherry picked from commit 8b16cced18925aa612049d08d5e78eccbf0530e4)
Change-Id: Ic7b75ff0b6a3b19e50a4ac8ff2d70f15c683c16a
2024-06-24 11:30:32 +03:00
Delan Azabani 4c3d93611f Merge "Fix build instructions in hacking.md and justfile" into main 2024-06-24 06:46:08 +00:00
Delan Azabani 5d33e4cd59 Fix build instructions in hacking.md and justfile
The stdenv phases don’t actually do anything (at least not anymore),
and our justfile doesn’t behave the same as our docs.

This patch removes the stdenv phases from the docs, documents our
usage of just, and makes `just setup` heed `$mesonFlags`.

Fixes #413.
Fixes #414.

Change-Id: Ieb0b2a8ae420526238b5f9a73d7849ec6919995d
2024-06-24 12:55:00 +08:00
kloenk da4e46dd1f libmain: add progress bar with multiple status lines
Add the log-formats `multiline` and `multiline-with-logs` which offer
multiple current active building status lines.

Change-Id: Idd8afe62f8591b5d8b70e258c5cefa09be4cab03
2024-06-22 14:20:27 +02:00
Qyriad 010d93393e repl: implement tab completing :colon commands
This uses a minor hack in which we check the rl_line_buffer global
variable to workaround editline not including the colon in its
completion callback.

Fixes #361

Change-Id: Id159d209c537443ef5e37a975982e8e12ce1f486
2024-06-17 13:08:02 +00:00
Qyriad ff99f4a882 build: correctly propagate changes to Lix source to manual
This adds the nix executable as an input argument to the custom targets
that build the manual (HTML, and the man pages), so that changes to
things like src/nix/nix.md cause the correct rebuilds

Change-Id: Iffaa2c14acbfc721caef7b8cae9b53ecd365f26d
2024-06-16 03:43:17 +00:00
jade f95a47e8c4 release: release notes for 2.90.0
For now we just need to put the release notes in the final spot. We will
have to fix the date on both 2.90 and 2.91 branches, but such as it is.

Release created with releng/create_release.xsh

Closes: lix-project/lix#318
Change-Id: I38e79b40e7f632c8a286f2f09865a84dc93eca90
2024-06-15 18:46:18 -07:00
jade 59b5965bbf doc: Write an index of environment variables used in testsuite
This was originally going to be just the testsuite but I kinda just
documented all of them.

I am tired of us not documenting these. This is a starting point to
producing an actually good index. I would like to enforce it in a
pre-commit hook eventually that we document all environment variables
used in Lix itself, even if it is terse dev facing docs.

This is full of a bunch of TODOs caused by auditing code. They should
probably be done at some point.

Change-Id: I7c0d3b257e19bae23d47d1efbd7361d203bccb0e
2024-06-12 15:34:23 -07:00
jade 211f79d4a2 doc/testing.md: Rewrite some outdated sections for meson and current source layout
Change-Id: Ia23f82c9a564b55bd799afbda59c28c9b0a65c13
2024-06-12 15:34:23 -07:00
jade 5f6eb6eb44 doc: rewrite the multi-user documentation to actually talk about security
It's in the security section, and it was totally outdated anyway.

I took the opportunity to write down the stuff we already believed.

Change-Id: I73e62ae85a82dad13ef846e31f377c3efce13cb0
2024-06-12 15:34:23 -07:00
jade 4392d89eea manual: rewrite the docker guide now that we have images
Change-Id: I5bdf47e67059ae4099552750a47ae070dbe094df
2024-06-09 20:33:24 -07:00
jade 611b1de441 Add meson release note
Change-Id: I4d2d08dc77a3ab4dce9fbb129c1487aa8c9f1722
2024-06-06 15:08:12 -07:00
jade 24057dcb6a Remove rl-next-dev
We realized that there's really no good place to put these dev facing
bulletins, and the user-facing release notes aren't really the worst
place to put them, I guess, and we do kind of hope that it converts
users to devs.

Change-Id: Id9387b2964fe291cb5a3f74ad6344157f19b540c
2024-06-06 15:08:12 -07:00
raito b8cb7abcf0 chore: rebrand Nix to Lix when it makes sense
Here's my guide so far:

$ rg '((?!(recursive).*) Nix
(?!(daemon|store|expression|Rocks!|Packages|language|derivation|archive|account|user|sandbox|flake).*))'
-g '!doc/' --pcre2

All items from this query have been tackled. For the documentation side:
that's for lix-project/lix#162.

Additionally, all remaining references to github.com/NixOS/nix which
were not relevant were also replaced.

Fixes: lix-project/lix#148.
Fixes: lix-project/lix#162.
Change-Id: Ib3451fae5cb8ab8cd9ac9e4e4551284ee6794545
Signed-off-by: Raito Bezarius <raito@lix.systems>
2024-06-01 20:31:24 +02:00
terru - 0c6cb34de6 Merge "document context-dependent keywords" into main 2024-05-31 10:07:50 +00:00
Maximilian Bosch 3d78b4847e Merge "release-notes: add missing credits/category to consistent-nix-build entry" into main 2024-05-30 14:38:47 +00:00
Maximilian Bosch 6abac7aacc release-notes: add missing credits/category to consistent-nix-build entry
Change-Id: I737422a2ff9d66be30cc432f8c1ddba9b1e71f4f
2024-05-30 14:05:12 +00:00
Cole Helbling 031d924116 libutil/args: warn on unknown settings after parsing all flags
Upstream change: https://github.com/NixOS/nix/pull/10701

Change-Id: Icf271df57ec529dd8c64667d1ef9f6dbf02d33d3
2024-05-30 03:07:21 +00:00
Qyriad afeaa2371c docs: enable non-default TOC folding
Folding by default would prevent things like "Ctrl+F for nix-env" from
working trivially, but the user should be able to fold if they want to.

Change-Id: I5273272289f0f24e1f040c691580acfe33f66bd4
2024-05-30 00:23:01 +00:00
terru - d8e452a91b document context-dependent keywords
Documents some of the weirdness of __curPos and the or keyword.
This does not fit well into any existing section for either of
them, though the use of or as a quasi-operator is mentioned in
the section on operators.

Addresses lix-project/lix#353

Change-Id: I7c906c8368843dca6944e8b22573b6d201cd9a76
2024-05-28 23:44:55 +02:00
alois31 f047e4357b libstore/build: always enable seccomp filtering and no-new-privileges
Seccomp filtering and the no-new-privileges functionality improve the security
of the sandbox, and have been enabled by default for a long time. In
lix-project/lix#265 it was decided that they
should be enabled unconditionally. Accordingly, remove the allow-new-privileges
(which had weird behavior anyway) and filter-syscall settings, and force the
security features on. Syscall filtering can still be enabled at build time to
support building on architectures libseccomp doesn't support.

Change-Id: Iedbfa18d720ae557dee07a24f69b2520f30119cb
2024-05-24 21:19:29 +00:00
jade 19ea351642 Merge "clang-tidy: work with angle brackets and external projects" into main 2024-05-24 19:11:26 +00:00
Qyriad 65da3e7199 make CTRL+Z work in the REPL
Editline just wasn't being built with --enable-sigstop lol

Change-Id: I35a78f74ea100d97f26b2b41990deb373fd9cd9a
2024-05-24 03:10:12 +00:00
jade 745b5d3d4f clang-tidy: work with angle brackets and external projects
Also fix the readme

Change-Id: I422dff5536bf01d43983621aa01035bd77ac0252
2024-05-24 02:22:58 +00:00
Qyriad 00bf2b105d Merge changes I462a8cf0,I3b0bcea3,I2acd56e7,Ifc149764,I9e2ef170 into main
* changes:
  docs: linkify nix3-build mention in nix-build.md
  build: make internal-api-docs PHONY
  cleanup lookupFileArg
  add docstring to lookupFileArg
  add libcmd test for lookupFileArg
2024-05-23 23:28:42 +00:00
jade 9530b7f2b2 Merge "packaging: rename nixexpr -> lixexpr and so on" into main 2024-05-23 23:19:28 +00:00
jade c97e17144e packaging: rename nixexpr -> lixexpr and so on
This breaks downstreams linking to us on purpose to make sure that if
someone is linking to Lix they're doing it on purpose and crucially not
mixing up Nix and Lix versions in compatibility code.

We still need to fix the internal includes to follow the same schema so
we can drop the single-level include system entirely. However, this
requires a little more effort.

This adds pkg-config for libfetchers and config.h.

Migration path:
expr.hh      -> lix/libexpr/expr.hh
nix/config.h -> lix/config.h

To apply this migration automatically, remove all `<nix/>` from
includes, so: `#include <nix/expr.hh>` -> `#include <expr.hh>`. Then,
the correct paths will be resolved from the tangled mess, and the
clang-tidy automated fix will work.

Then run the following for out of tree projects:

```
lix_root=$HOME/lix
(cd $lix_root/clang-tidy && nix develop -c 'meson setup build && ninja -C build')
run-clang-tidy -checks='-*,lix-fixincludes' -load=$lix_root/clang-tidy/build/liblix-clang-tidy.so -p build/ -fix src
```

Related: lix-project/nix-eval-jobs#5
Fixes: lix-project/lix#279
Change-Id: I7498e903afa6850a731ef8ce77a70da6b2b46966
2024-05-23 16:45:23 -06:00
Qyriad a0172dc81b docs: linkify nix3-build mention in nix-build.md
Change-Id: I462a8cf0da42b5045ce84b48dc1841ecdccbb89e
2024-05-23 14:11:10 -06:00
Qyriad a8b2fc6d41 build: make internal-api-docs PHONY
Since we're skipping Meson's dependency tracking, for the
internal-api-docs custom target, we should just consider it a phony
target and build it on every request.

Change-Id: I3b0bcea30ee9a4830023ccc5bededf995e96cccc
2024-05-23 14:11:10 -06:00
eldritch horrors 9a75150d19 doc: sort change-authors.yml
this should make it easier to spot future instances of entries being
duplicated by accident. also add a pre-commit check to remain sorted

Change-Id: I500caf862e93480b38c9d51144273bb2dcab1af0
2024-05-23 02:09:05 +00:00
jade dcc7ea5498 release notes: add a bunch of them
Also fix typos introduced by the commits I read.

I have run the addDrvOutputDependencies release note past Ericson since
I was confused by what the heck it was doing, and he was saying it was
reasonable.

Change-Id: Id015353b00938682f7faae7de43df7f991a5237e
2024-05-22 21:13:56 +02:00
alois31 0bf4c2971f Merge "doc: fix repl-interrupt release note entry" into main 2024-05-22 18:59:54 +00:00
alois31 d5fdb995d3
doc: fix repl-interrupt release note entry
The timing of the merge resulted in the newly introduced metadata not being
present.

Change-Id: I07f28cf37703ec05c3e1b96301797a42d913264b
2024-05-21 16:34:04 +02:00
Qyriad 20981461d4 print type and value in "flake attr is not a derivation" errors
This turns errors like:

error: flake output attribute 'hydraJobs' is not a derivation or path

into errors like:

error: expected flake output attribute 'hydraJobs' to be a derivation or
path but found a set: { binaryTarball = «thunk»; build = «thunk»; etc> }

This change affects all InstallableFlake commands.

Change-Id: I899757af418b6f98201006ec6ee13a448c07077c
2024-05-21 05:55:13 -06:00
puck bfb91db4f6 repl-interacter: save history after entering every line
Fixes: lix-project/lix#328
Change-Id: Iedd79ff5f72e84766ebd234c63856170afc624f0
2024-05-19 22:47:45 +00:00
puck 40311973a8 change-authors: add puck
Change-Id: I04b8cd04a168b3adea7790f816e774d5d90fcea2
2024-05-19 22:47:45 +00:00
julia 7a3745b076
Deprecate the online flake registries and vendor the default registry
Fixes #183, #110, #116.

The default flake-registry option becomes 'vendored', and refers
to a vendored flake-registry.json file in the install path.

Vendored copy of the flake-registry is from github:NixOS/flake-registry
at commit 9c69f7bd2363e71fe5cd7f608113290c7614dcdd.

Change-Id: I752b81c85ebeaab4e582ac01c239d69d65580f37
2024-05-18 12:27:23 +10:00
julia 5b7dcb3005 Allow enabling core dumps from builds for nix & child processes
Fixes lix-project/lix#268

Change-Id: I3f1b0ddf064f891cca8b53229c5c31c74cea3d9f
2024-05-16 17:11:21 -07:00
jade 6d84d6bdc1 builtins: fix builtins.langVersion docs to state it's deprecated
This builtin was always a problem and nixpkgs uses it in exactly one
place, to give up if the Nix version is absurdly old. It has no other
use cases, and doesn't work in a multi-implementation world anyway.

Change-Id: I03c36e118591029e2ef14b091fe14a311c66a08a
2024-05-15 21:54:12 -07:00
jade 2a7b3d7c94 build-release-notes: add change author metadata and use it
Change-Id: I6f5fb54f70b02a467bbdee4c526f59da1193f7db
2024-05-15 14:33:35 -07:00
jade 272db8af1b doc: add release note credits and categories for all the changes in Lix
This does not add missing release notes, and it doesn't do anything
about the profiles feature we would really like to have so we can have
consistent credit.

Change-Id: I72a6f7acfcff85f380be17dac76501a6f4693776
2024-05-15 14:33:35 -07:00
jade 03655c310d build-release-notes: fail if the directory does not exist
This was a combination of two problems: the python didn't throw an error
because apparently glob on a nonexistent directory doesn't crash, and
secondarily, bash ignores bad exit codes without `set -e` if they are
not in the final/only command.

Change-Id: I812bde7a4daee5c77ffe9d7c73a25fd14969f548
2024-05-15 20:18:50 +00:00
alois31 f6397cc286 doc: fix rl-next build
Use the correct directory for the rl-next build, so that the release notes
actually get built and the page doesn't end up empty. I don't know why the
exception didn't cause a build failure before.

Fixes: lix-project/lix#297
Change-Id: Ic72b9bb4c0d2d1f633f2af90cce4a3a2796d7f9b
2024-05-15 20:18:50 +00:00
Maximilian Bosch aabc902040 Merge "nix3-build: show all FOD errors with --keep-going" into main 2024-05-15 18:46:06 +00:00
alois31 0903a99bad Merge changes I8456c47b,I48253f5f into main
* changes:
  repl: clear the interrupt before reading the next line
  libutil: remove the interrupt-blocking code
2024-05-15 15:46:11 +00:00
Maximilian Bosch e146393183
nix3-build: show all FOD errors with --keep-going
Basically I'd expect the same behavior as with `nix-build`, i.e.
with `--keep-going` the hash-mismatch error of each failing
fixed-output derivation is shown.

The approach is derived from `Store::buildPaths` (`entry-point.cc`):
instead of throwing the first build-result, check if there are any build
errors and if so, display all of them and throw after that.

Unfortunately, the BuildResult struct doesn't have an `ErrorInfo`
(there's a FIXME for that at least), so I have to construct my own here.
This is a rather cheap bugfix and I decided against touching too many
parts of libstore for that (also I don't know if that's in line with the
ongoing refactoring work).

Closes lix-project/lix#302

Change-Id: I378ab984fa271e6808c6897c45e0f070eb4c6fac
2024-05-15 15:35:18 +02:00
jade 58ff8960cd doc: add a script to upload the nightly manual manually
This is not like, perfect, since it is a manual operation, but we can
automate it in the future. rclone is used, since it seems like awscli is
not (obviously at least?) able to sync directories such that old things
are deleted, and rclone does this thing properly.

Fixes: lix-project/meta#2
Change-Id: Ia6a46d861342a6d29b22f981ba4e35e79f79e60e
2024-05-14 14:28:01 -07:00
alois31 914b0febf7
libutil: remove the interrupt-blocking code
The interrupt-blocking code was originally introduced 20 years ago so that
trying to log an error message does not result in an interrupt exception being
thrown and then going unhandled (c8d3882cdc).
However, the logging code does not check for interrupts any more
(054be50257), so this reasoning is no longer
applicable. Delete this code so that later interrupts are unblocked again, for
example in the next line entered into the repl.

Closes: lix-project/lix#296
Change-Id: I48253f5f4272e75001148c13046e709ef5427fbd
2024-05-13 09:03:53 +02:00
Qyriad b9be46fb31 remove the autoconf+Make buildsystem
We're not using it anymore. Any leftover bugs in the Meson buildsystem
are now just bugs.

Closes #249.

Change-Id: I0465a0c37ae819f94d40e7829f5bff046aa63d73
2024-05-07 17:04:30 -06:00
jade 748d8310fa Fix the pages in the manual for Lix
This doesn't comprehensively fix everything outdated in the manual, or
make the manual greatly better, but it does note down where at least
jade noticed it was wrong, and it does fix all the instances of
referencing Nix to conform to the style guide to the best of our
ability.

A lot of things have been commented out for being wrong, and there are
three types of FIXME introduced:

- FIXME(Lix): generically Lix needs to fix it
- FIXME(Qyriad): re lix-project/lix#215
- FIXME(meson): docs got outdated by meson changes and need rewriting

I did fix a bunch of it that I could, but there could certainly be
mistakes and this is definitely just an incremental improvement.

Fixes: lix-project/lix#266
Change-Id: I5993c4603d7f026a887089fce77db08394362135
2024-05-05 16:11:01 -07:00
eldritch horrors 6a5f100b8b doc: fix build littering doc/
mdbook has the unfortunate habit of creating stub files for chapters it
can't find on disk. turn off this helpful feature as it masks errors in
the summary file, and fix a recently introduced instance of this error.

Change-Id: I10d86aac0489c9c494bd5c8a50047415f4d4b18d
2024-05-05 16:13:27 +00:00
Maximilian Bosch 799d0132f0 Merge "Revert "Revert "Merge pull request #6621 from Kha/nested-follows""" into main 2024-05-04 08:52:29 +00:00
Maximilian Bosch 79d0ae6670 Merge "libstore/local-derivation-goal: prohibit creating setuid/setgid binaries" into main 2024-05-04 07:26:15 +00:00
Maximilian Bosch 0e38720502 Revert "Revert "Merge pull request #6621 from Kha/nested-follows""
This reverts commit a8b3d777fb.

This undoes the revert of PR#6621, which allows nested `follows`, i.e.

    {
      inputs = {
        foo.url = "github:bar/foo";
        foo.inputs.bar.inputs.nixpkgs = "nixpkgs";
      };
    }

does the expected thing now. This is useful to avoid the 1000 instances
of nixpkgs problem without having each flake in the dependency tree to
expose all of its transitive dependencies for modification.

This was in fact part of Nix before and the C++ changes applied w/o
conflicts. However, it got reverted then because people didn't want to
merge lazy-trees against it which was supposed to be merged soon back in
October 2022.

Fixes: lix-project/lix#201

Change-Id: I5ddef914135b695717b2ef88862d57ced5e7aa3c
2024-05-03 22:54:38 +00:00
Maximilian Bosch 045ee37438 libstore/local-derivation-goal: prohibit creating setuid/setgid binaries
With Linux kernel >=6.6 & glibc 2.39 a `fchmodat2(2)` is available that
isn't filtered away by the libseccomp sandbox.

Being able to use this to bypass that restriction has surprising results
for some builds such as lxc[1]:

> With kernel ≥6.6 and glibc 2.39, lxc's install phase uses fchmodat2,
> which slips through 9b88e52846/src/libstore/build/local-derivation-goal.cc (L1650-L1663).
> The fixupPhase then uses fchmodat, which fails.
> With older kernel or glibc, setting the suid bit fails in the
> install phase, which is not treated as fatal, and then the
> fixup phase does not try to set it again.

Please note that there are still ways to bypass this sandbox[2] and this is
mostly a fix for the breaking builds.

This change works by creating a syscall filter for the `fchmodat2`
syscall (number 452 on most systems). The problem is that glibc 2.39
is needed to have the correct syscall number available via
`__NR_fchmodat2` / `__SNR_fchmodat2`, but this flake is still on
nixpkgs 23.11. To have this change everywhere and not dependent on the
glibc this package is built against, I added a header
"fchmodat2-compat.hh" that sets the syscall number based on the
architecture. On most platforms its 452 according to glibc with a few
exceptions:

    $ rg --pcre2 'define __NR_fchmodat2 (?!452)'
    sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
    58:#define __NR_fchmodat2 1073742276

    sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
    67:#define __NR_fchmodat2 6452

    sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
    62:#define __NR_fchmodat2 5452

    sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
    70:#define __NR_fchmodat2 4452

    sysdeps/unix/sysv/linux/alpha/arch-syscall.h
    59:#define __NR_fchmodat2 562

I added a small regression-test to the setuid integration-test that
attempts to set the suid bit on a file using the fchmodat2 syscall.
I confirmed that the test fails without the change in
local-derivation-goal.

Additionally, we require libseccomp 2.5.5 or greater now: as it turns
out, libseccomp maintains an internal syscall table and
validates each rule against it. This means that when using libseccomp
2.5.4 or older, one may pass `452` as syscall number against it, but
since it doesn't exist in the internal structure, `libseccomp` will refuse
to create a filter for that. This happens with nixpkgs-23.11, i.e. on
stable NixOS and when building Lix against the project's flake.

To work around that

* a backport of libseccomp 2.5.5 on upstream nixpkgs has been
  scheduled[3].

* the package now uses libseccomp 2.5.5 on its own already. This is to
  provide a quick fix since the correct fix for 23.11 is still a staging cycle
  away.

We still need the compat header though since `SCMP_SYS(fchmodat2)`
internally transforms this into `__SNR_fchmodat2` which points to
`__NR_fchmodat2` from glibc 2.39, so it wouldn't build on glibc 2.38.
The updated syscall table from libseccomp 2.5.5 is NOT used for that
step, but used later, so we need both, our compat header and their
syscall table 🤷

Relevant PRs in CppNix:

* https://github.com/NixOS/nix/pull/10591
* https://github.com/NixOS/nix/pull/10501

[1] https://github.com/NixOS/nixpkgs/issues/300635#issuecomment-2031073804
[2] https://github.com/NixOS/nixpkgs/issues/300635#issuecomment-2030844251
[3] https://github.com/NixOS/nixpkgs/pull/306070

(cherry picked from commit ba6804518772e6afb403dd55478365d4b863c854)
Change-Id: I6921ab5a363188c6bff617750d00bb517276b7fe
2024-05-03 16:29:06 +02:00
Théophane Hufschmitt 8458d98b27 Rename nix show-config to nix config show
Part of #7672

My main motivation is to be able to use `nix.checkConfig`[1]. This
doesn't work with Lix currently since the module uses `nix show-config`
if the Nix version is <2.20pre and `nix config show` otherwise. I think
this is the only instance where nixpkgs checks for which Nix commands
exist that affects us now, so I figured we could just perform the rename
here as well[2] and still provide the current version number[3].

I don't have a strong opinion on whether to deprecate `nix show-config`,
the warning is added there automatically.

(cherry picked from commit f300e11b056dea414d7d77bbc6e5a7dc5d9ddd41)

[1] https://nixos.org/manual/nixos/stable/options.html#opt-nix.checkConfig
[2] I should add that I don't use the "official" ways of installing Lix
    because using the flake directly and callPackaging it seemed to fit
    better into my workflow: I already have a little mess to make
    sure Hydra from the flake uses the correct pkgs.nix and I didn't
    want to complicate it further while keeping a single package-set I
    can build in CI. Don't get me wrong, I think such a module for a
    quick-start is very important, just giving context on why I bother
    in the first place :)
[3] When we go public, I think it's worth considering to add support in
    nixpkgs itself for Lix.

Change-Id: I47b4239b05cbeda3c370d2fa56ea768b768768ac
2024-05-03 16:26:16 +02:00
Qyriad 076dfd30c6 Merge changes from topic "profile-v3" into main
* changes:
  nix3-profile: remove check "name" attr in manifests
  Add profile migration test
  nix3-profile: make element names stable
  getNameFromURL(): Support uppercase characters in attribute names
  nix3-profile: remove indices
  nix3-profile: allow using human-readable names to select packages
  implement parsing human-readable names from URLs
2024-05-02 20:15:48 +00:00
Qyriad e0911eef73 nix3-profile: make element names stable
Based off of commit 6268a45b650f563bae2360e0540920a2959bdd40

Upstream-PR: https://github.com/NixOS/nix/pull/9656
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Change-Id: I0fcf069a8537c61ad6fc4eee1f3c193a708ea1c4
2024-05-02 12:59:15 -06:00
Qyriad e98fc952a8 nix3-profile: remove indices
Based off of commit 3187bc9ac3dd193b9329ef68c73ac3cca794ed78

Upstream-PR: https://github.com/NixOS/nix/pull/9656
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
Change-Id: I8ac4a33314cd1cf9de95404c20f58e883460acc7
2024-05-02 12:02:28 -06:00
Qyriad f88423813f nix3-profile: allow using human-readable names to select packages
These names are parsed from the URL provided for that package

Based off of commit 257b768436a0e8ab7887f9b790c5b92a7fe51ef5

Upstream-PR: https://github.com/NixOS/nix/pull/8678
Co-authored-by: Felix Uhl <felix.uhl@outlook.com>
Change-Id: I76d5f9cfb11d3d2915b3dd1db21d7bb49e91f4fb
2024-05-02 12:02:28 -06:00
Robert Hensing b7ce11c97d Disallow store path names that are . or .. (plus opt. -)
As discussed in the maintainer meeting on 2024-01-29.

Mainly this is to avoid a situation where the name is parsed and
treated as a file name, mostly to protect users.
.-* and ..-* are also considered invalid because they might strip
on that separator to remove versions. Doesn't really work, but that's
what we decided, and I won't argue with it, because .-* probably
doesn't seem to have a real world application anyway.
We do still permit a 1-character name that's just "-", which still
poses a similar risk in such a situation. We can't start disallowing
trailing -, because a non-zero number of users will need it and we've
seen how annoying and painful such a change is.

What matters most is preventing a situation where . or .. can be
injected, and to just get this done.

(cherry picked from commit f1b4663805a9dbcb1ace64ec110092d17c9155e0)
Change-Id: I900a8509933cee662f888c3c76fa8986b0058839
2024-05-02 19:34:38 +02:00
Robert Hensing fae6ae2122 parseStorePath: Support leading period
(cherry picked from commit b13e6a76b4f289c6db69ffaa7bd35b7e44f2a391)
Change-Id: Ie14be437d87d17248f80e1f009aa2a4311ddede6
2024-05-02 19:34:03 +02:00
Qyriad ee5a1b5a4c nix3-upgrade-nix: allow manually specifying new nix
This allows manually specifying a store path for the new Nix that
gets linked into Nix's profile.

Change-Id: Ib71711ffb466febf4a6892e3fdbda644e053770d
2024-04-29 01:19:21 +00:00
Qyriad aae12f5848 fix nix upgrade-nix on new-style profiles
nix3-profile automatically migrates any profile its used on to its style
of profile -- the ones with manifest.json instead of manifest.nix. On
non-NixOS systems, Nix is conventionally installed to the profile at
/nix/var/nix/profiles/default, so if a user passed that to `--profile`
of `nix profile`, then it would break upgrade-nix from ever working
again, without recreating the profile.

This commit fixes that, and allows upgrade-nix to work on either kind of
profile.

Fixes #16.

Change-Id: I4c49b1beba93bb50e8f8a107edc451affe08c3f7
2024-04-29 01:19:21 +00:00
Qyriad 78ce710722 docs(nix-env): summarize of each subcommand in --help
This should have been there from the beginning. As much as nix-env is a
pile of problems we don't need trivial docs papercuts like this adding
to it.

Change-Id: I0c53e4b146af2fefdd0e4743d850672729cb2194
2024-04-26 21:56:08 -06:00
Qyriad b913a939b0 meson: flip the switch!!
This commit makes Meson the default buildsystem for Lix.
The Make buildsystem is now deprecated and will be removed soon, but has
not yet, which will be done in a later commit when all seems good. The
mesonBuild jobs have been removed, and have not been replaced with
equivalent jobs to ensure the Make buildsystem still works.

The full, new commands in a development shell are:

$ meson setup ./build "--prefix=$out" $mesonFlags

(A simple `meson setup ./build` will also build, but will do a different
thing, not having the settings from package.nix applied.)

$ meson compile -C build
$ meson test -C build --suite=check
$ meson install -C build
$ meson test -C build --suite=installcheck

(Check and installcheck may both be done after install, allowing you to
omit the --suite argument entirely, but this is the order package.nix
runs them in.)

If tests fail and Meson helpfully has no output for why, use the
`--print-error-logs` option to `meson test`. Why this is not the default
I cannot explain.

If you change a setting in the buildsystem, most cases will
automatically regenerate the Meson configuration, but some cases, like
trying to build a specific target whose name is new to the buildsystem
(e.g. `meson compile -C build src/libmelt/libmelt.dylib`, when
`libmelt.dylib` did not exist as a target the last time the buildsystem
was generated), then you can reconfigure using new settings but
existing options, and only recompiling stuff affected by the changes:

$ meson setup --reconfigure build

Note that changes to the default values in `meson.options` or in the
`default_options :` argument to project() are NOT propagated with
`--reconfigure`.

If you want a totally clean build, you can use:

$ meson setup --wipe build

That will work regardless of if `./build` exists or not.

Specific, named targets may be addressed in
`meson build -C build <target>` with the "target ID" if there is one,
which is the first string argument passed to target functions that
have one, and unrelated to the variable name, e.g.:

libexpr_dylib = library('nixexpr', …)

can be addressed with:

$ meson compile -C build nixexpr

All targets may be addressed as their output, relative to the build
directory, e.g.:

$ meson compile -C build src/libexpr/libnixexpr.so

But Meson does not consider intermediate files like object files
targets. To build a specific object file, use Ninja directly and
specify the output file relative to the build directory:

$ ninja -C build src/libexpr/libnixexpr.so.p/nixexpr.cc.o

To inspect the canonical source of truth on what the state of the
buildsystem configuration is, use:

$ meson introspect

Have fun!

Change-Id: Ia3e7b1e6fae26daf3162e655b4ded611a5cd57ad
2024-04-22 21:41:58 -06:00
Qyriad cf0744ceed Merge "build internal API docs with Meson" into main 2024-04-17 21:48:25 +00:00