Commit graph

191 commits

Author SHA1 Message Date
Maximilian Bosch 52ffe2797a
doc: Document --dry-run option for nix-build 2019-11-07 00:11:57 +01:00
Eelco Dolstra ab4dd1d783
Merge pull request #2291 from Taneb/master
nix-channel documentation: don't suggest deprecated function
2019-10-17 12:53:42 +02:00
Danny Bautista 00a567588e Fix typos in the Nix Manual. 2019-10-08 14:02:40 -04:00
toonn 5bdac86be2 Reword to clarify newer generations are left alone
My attempt at clarifying the docs resulted in a false explanation. This
is now fixed and I added an example to eliminate all possible confusion.
2019-08-29 13:56:21 +02:00
Toon Nolten 1dbaf11948 Fix nix-env documentation for --delete-generations
The documentation for `--delete-generations` had an erroneous fullstop
and as it turns out inaccurate information on the `+No.` syntax.
2019-08-17 16:33:35 +02:00
Eelco Dolstra b7ea98bf34
Merge pull request #2945 from danidiaz/doc001
Expanded documentation for .nix-defexpr
2019-08-15 15:03:21 +02:00
Eelco Dolstra 477f82e5a7
Merge pull request #2782 from grahamc/flames
Track function start and end
2019-08-15 14:20:42 +02:00
Daniel Diaz 653c407784
Expanded documentation for .nix-defexpr 2019-08-15 08:05:22 -04:00
Graham Christensen ee9c988a1b
Track function start and ends for flame graphs
With this patch, and this file I called `log.py`:

    #!/usr/bin/env nix-shell
    #!nix-shell -i python3 -p python3 --pure

    import sys
    from pprint import pprint

    stack = []
    timestack = []

    for line in open(sys.argv[1]):
        components = line.strip().split(" ", 2)
        if components[0] != "function-trace":
            continue

        direction = components[1]
        components = components[2].rsplit(" ", 2)

        loc = components[0]
        _at = components[1]
        time = int(components[2])

        if direction == "entered":
            stack.append(loc)
            timestack.append(time)
        elif direction == "exited":
            dur = time - timestack.pop()
            vst = ";".join(stack)
            print(f"{vst} {dur}")
            stack.pop()

and:

    nix-instantiate --trace-function-calls -vvvv ../nixpkgs/pkgs/top-level/release.nix -A unstable > log.matthewbauer 2>&1
    ./log.py ./log.matthewbauer > log.matthewbauer.folded
    flamegraph.pl --title matthewbauer-post-pr log.matthewbauer.folded > log.matthewbauer.folded.svg

I can make flame graphs like: http://gsc.io/log.matthewbauer.folded.svg

---

Includes test cases around function call failures and tryEval. Uses
RAII so the finish is always called at the end of the function.
2019-08-14 16:09:35 -04:00
Graham Christensen a02457db71
conf: stalled-download-timeout: make tunable
Make curl's low speed limit configurable via stalled-download-timeout.
Before, this limit was five minutes without receiving a single byte.
This is much too long as if the remote end may not have even
acknowledged the HTTP request.
2019-08-08 10:22:13 -04:00
Graham Christensen 1eeaf99cf8
fixup: docs for post-build-hook 2019-08-07 14:53:11 -04:00
Eelco Dolstra 56df30cd3f
Merge pull request #2995 from tweag/post-build-hook
Add a post build hook
2019-08-07 15:02:29 +02:00
Graham Christensen 363a2f6826
post-build-hook: docs fixup 2019-08-06 14:26:43 -04:00
regnat 7c5596734f
Add a post-build-hook
Passing `--post-build-hook /foo/bar` to a nix-* command will cause
`/foo/bar` to be executed after each build with the following
environment variables set:

    DRV_PATH=/nix/store/drv-that-has-been-built.drv
    OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev

This can be useful in particular to upload all the builded artifacts to
the cache (including the ones that don't appear in the runtime closure
of the final derivation or are built because of IFD).

This new feature prints the stderr/stdout output to the `nix-build`
and `nix build` client, and the output is printed in a Nix 2
compatible format:

    [nix]$ ./inst/bin/nix-build ./test.nix
    these derivations will be built:
      /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv
    building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'...
    hello!
    bye!
    running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'...
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation
    post-build-hook: + sleep 1
    post-build-hook: + printf 'very important stuff'
    /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation

    [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix
    my-example-derivation> hello!
    my-example-derivation> bye!
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation
    my-example-derivation (post)> + sleep 1
    my-example-derivation (post)> + printf 'very important stuff'
    [1 built, 0.0 MiB DL]

Co-authored-by: Graham Christensen <graham@grahamc.com>
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2019-08-02 10:48:15 -04:00
Eelco Dolstra 320126aeeb
Tweak min-free/max-free descriptions 2019-08-02 14:04:09 +02:00
Graham Christensen cf6172f05e
docs: document balancing cores and max-jobs 2019-07-19 08:28:44 -04:00
Eelco Dolstra b5ae85f088
Merge pull request #2882 from grahamc/docs/1115-tarball-ttl
tarball-ttl: document
2019-07-06 00:15:27 +02:00
Graham Christensen 648bdf153d
tarball-ttl: document
Incorporates text from Niklas Hambüchen in #2978

Closes #1115
2019-07-05 15:55:28 -04:00
Eelco Dolstra 7e1c85c5fb
Merge pull request #2779 from LnL7/build-exit-codes
build: add exit code for hash and check mismatches
2019-07-02 17:37:49 +02:00
Eelco Dolstra 7c0b0dbec8
Merge pull request #2724 from LnL7/manpage-add-fixed
nix-store: document --add-fixed
2019-07-02 15:47:40 +02:00
Daiderd Jordan a3c77c1536
nix-store: document --add-fixed 2019-07-02 09:12:02 -04:00
Daiderd Jordan a52c331edb
build: replace 100 offset for build exit codes 2019-07-02 00:12:38 +02:00
Daiderd Jordan 1ac399dd11
nix-store: document exit codes 2019-07-02 00:12:38 +02:00
Eelco Dolstra 88571219d9
nix-channel: Don't fetch binary-cache-url
This has been ignored since the Perl->C++ rewrite.
2019-06-25 13:27:16 +02:00
Vladimír Čunát c0559a1d60
docs: describe $IN_NIX_SHELL values (#2796)
See commit 1bffd83e1a
2019-05-17 09:50:42 +02:00
Graham Christensen a5efe61786
Clarify where output from the diff hook goes. 2019-05-12 13:23:30 -04:00
Graham Christensen 6df61db060
diff hook: execute as the build user, and pass the temp dir 2019-05-12 13:17:26 -04:00
Graham Christensen c78686e411
build: run diff-hook under --check and document diff-hook 2019-05-12 13:17:24 -04:00
Niklas Hambüchen caa76c369a docs: Mention --max-jobs 0 to build remotely only 2019-03-31 03:57:45 +02:00
Dmitry Kalinkin 75ec68f93a
manual: mention the "channel:" shorthand for NIX_PATH
Bumped to 15.09 because older channels, when downloaded from
nixos.org, require firefox to be accessed via `pkgs.firefox`
2019-03-25 20:55:28 -04:00
Spencer Baugh 5f1891b795 nix-store: make --dump-db take a list of paths to dump
Inside a derivation, exportReferencesGraph already provides a way to
dump the Nix database for a specific closure. On the command line,
--dump-db gave us the same information, but only for the entire Nix
database at once.

With this change, one can now pass a list of paths to --dump-db to get
the Nix database dumped for just those paths. (The user is responsible
for ensuring this is a closure, like for --export).

Among other things, this is useful for deploying a closure to a new
host without using --import/--export; one can use tar to transfer the
store paths, and --dump-db/--load-db to transfer the validity
information. This is useful if the new host doesn't actually have Nix
yet, and the closure that is being deployed itself contains Nix.
2019-01-23 01:24:34 +00:00
Domen Kožar 92d08c02c8
Merge pull request #2635 from veprbl/patch-7
manual: "sandbox" option default is "true" on Linux
2019-01-20 09:43:26 +07:00
Dmitry Kalinkin 15efd54373
manual: "sandbox" option default is "true" on Linux
Fixes: 812e39313c ('Enable sandboxing by default')
2019-01-19 15:04:43 -05:00
Samuel Evans-Powell 2ae5624b2f Update instructions for Haskell script using nix-shell interpreter
- The instructions for using nix-shell as an interpreter has a Haskell script
  example that doesn't work on more recent versions of Nix. Update the
  instructions with a working command
2019-01-18 10:50:54 +10:00
John Ericson 2733287046 Don't look for a "pv" program, or mention it in the manual source
The manual reference was commented out, and the sole reference to this
program other than the configure script. Removed both.
2019-01-07 16:40:19 -05:00
Patrick Hilhorst 567941fb59
Clarify nix-instantiate --read-write-mode 2018-12-14 09:36:40 +01:00
Antoine Eiche 73c2ae43f0 Add --graphml option to the nix-store --query command
This prints the references graph of the store paths in the graphML
format [1]. The graphML format is supported by several graph tools
such as the Python Networkx library or the Apache Thinkerpop project.

[1] http://graphml.graphdrawing.org
2018-10-20 09:48:34 +02:00
Eelco Dolstra 1e7b8deea7
Check requiredSystemFeatures for local builds
For example, this prevents a "kvm" build on machines that don't have
KVM.

Fixes #2012.
2018-09-28 16:10:27 +02:00
Graham Christensen be9e356e61
nix-shell: document double quotes being necessary for a simple Nix expression in the shebang 2018-09-19 13:01:27 -04:00
Graham Christensen 10a7f19937
nix-shell: explain the merging property close to the example 2018-09-19 12:48:08 -04:00
Graham Christensen 0cd863197b
docs: document deprecated aliases 2018-09-18 12:23:32 -04:00
Graham Christensen 0aca1ffb6e Prefer 'remote builder' over 'slave' 2018-09-10 18:57:46 +02:00
Eelco Dolstra c5ab07ec2b
Merge pull request #2168 from grahamc/explain-why-netrc-is-busted
manual: document why ~/.netrc doesn't work
2018-09-01 21:25:04 +02:00
Domen Kožar d16ff76c69
nix.conf: clarify -j0 doesn't affect preferLocalBuild 2018-08-29 14:33:14 +01:00
Domen Kožar 54df4bb0b5
nix.conf: mention -j0 is useful 2018-08-29 11:51:51 +01:00
Samuel Dionne-Riel 438e02529d Allows selectively adding environment variables to pure shells.
Includes documentation and test.
2018-08-02 08:21:30 -04:00
Nathan van Doorn 41f38fbb4b
nix-channel documentation: don't suggest deprecated function
Running `nix-instantiate --eval -E '(import <nixpkgs> {}).lib.nixpkgsVersion` emits a warning
```
trace: `lib.nixpkgsVersion` is deprecated, use `lib.version` instead!
```
2018-07-16 10:00:42 +01:00
Peter Simons 93aa3bea2e
Merge pull request #767 from mogorman/garbage_collect_keep_last_few
Implement --delete-generations + flag for keeping last N number of gens
2018-05-31 10:00:21 +02:00
Alexandre Esteves 579f3895b4
Fix docs on --check suffix 2018-05-23 22:26:06 +01:00
Graham Christensen 33712fed38
manual: document why ~/.netrc doesn't work
Maybe there is a better place to document this, which is more generic?
2018-05-18 14:21:47 -04:00