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sternenseemann b5cad4d4a4 stdenv/setup.sh: make sure $sourceRoot has +x before cd-ing
This change is prompted by the following, admittedly cursed tarball:

```
> curl https://registry.npmjs.org/char-regex/-/char-regex-1.0.2.tgz 2>/dev/null \
  | tar -ztv
drw-rw-rw- 0/0               0 2020-02-18 10:50 package
-rw-rw-rw- 0/0             297 2020-02-18 10:50 package/index.d.ts
-rw-rw-rw- 0/0            1920 2020-02-18 10:50 package/index.js
-rw-rw-rw- 0/0            1092 2020-01-31 11:31 package/LICENSE
-rw-rw-rw- 0/0             937 2020-02-18 10:51 package/package.json
-rw-rw-rw- 0/0             713 2020-02-18 10:50 package/README.md
```

The minimal reproducer for the issue is the following derivation trying
to work around the uid 0 issue with `dontMakeSourcesWritable = true`:

```nix
{ stdenv, fetchurl }:

stdenv.mkDerivation {
  name = "test";

  src = fetchurl {
    sha1 = "d744358226217f981ed58f479b1d6bcc29545dcf";
    url = "https://registry.npmjs.org/char-regex/-/char-regex-1.0.2.tgz";
  };

  dontMakeSourcesWritable = true;

  installPhase = ''
    cp -R . $out
  '';
}
```

This currently fails in the following way:

```
these derivations will be built:
  /nix/store/pc3jbydl0xcc8nrndf5xkf7hdhpgpb41-test.drv
building '/nix/store/pc3jbydl0xcc8nrndf5xkf7hdhpgpb41-test.drv'...
unpacking sources
unpacking source archive /nix/store/v9p98kqplf4kflmy91p0687xlvr6klb1-char-regex-1.0.2.tgz
source root is package
find: 'package/index.d.ts': Permission denied
find: 'package/index.js': Permission denied
find: 'package/LICENSE': Permission denied
find: 'package/package.json': Permission denied
find: 'package/README.md': Permission denied
/nix/store/6c47azxacncswc1pllzj28zfzqw40d7c-stdenv-linux/setup: line 1311: cd: package: Permission denied
builder for '/nix/store/pc3jbydl0xcc8nrndf5xkf7hdhpgpb41-test.drv' failed with exit code 1
error: build of '/nix/store/pc3jbydl0xcc8nrndf5xkf7hdhpgpb41-test.drv' failed
```

As you can see, the issue is that `$sourceRoot` isn't executable,
prohibiting the call to `cd`. This can be fixed by running
`chmod +x "${sourceRoot}"` before `cd` regardless of
`dontMakeSourcesWritable` in `unpackPhase` since if `chmod` fails, `cd`
would fail as well and we are out of options.

Verified that the workaround works locally.

Another thing to investigate is investigating if we should use
`--no-same-owner` for `tar` and if it helps in this case as well.
See also <https://github.com/Profpatsch/yarn2nix/issues/56>.
2022-03-24 11:13:38 +01:00
.github Merge pull request #164850 from bobvanderlinden/patch-3 2022-03-22 20:19:27 +01:00
doc Merge staging-next into staging 2022-03-22 00:02:58 +00:00
lib Merge pull request #164890 from ncfavier/lib-warn-throw 2022-03-22 21:12:11 +01:00
maintainers Merge staging-next into staging 2022-03-23 06:01:55 +00:00
nixos Merge staging-next into staging 2022-03-23 06:01:55 +00:00
pkgs stdenv/setup.sh: make sure $sourceRoot has +x before cd-ing 2022-03-24 11:13:38 +01:00
.editorconfig .editorconfig: remove emscripten 2022-02-14 07:02:32 +10:00
.git-blame-ignore-revs git-blame-ignore-revs: add a file to ignore certain git revisions 2022-03-02 02:25:13 +02:00
.gitattributes
.gitignore gitignore: add .vscode/ 2021-12-31 12:26:20 -08:00
.version increment version to 22.05 2021-11-22 14:33:35 -07:00
CONTRIBUTING.md CONTRIBUTING: Make clearer where branch policy can be found 2022-01-04 21:43:10 +01:00
COPYING COPYING: 2021 -> 2022 2022-01-11 20:58:07 +00:00
default.nix docs: add -L to remaining curl install commands 2020-09-11 12:14:07 -07:00
flake.nix nixos: move default module location logic to eval-config.nix 2022-01-27 22:13:35 +01:00
README.md README: white logo for dark mode 2022-03-09 16:07:03 -08:00

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Nixpkgs is a collection of over 80,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.

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  • NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
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The sources of all official Nix-related projects are in the NixOS organization on GitHub. Here are some of the main ones:

  • Nix - the purely functional package manager
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Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.

Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.

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Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem a lot at first, it helps consider it in the context of the scope of the project. Nixpkgs describes how to build tens of thousands of pieces of software and implements a Linux distribution. The GitHub Insights page gives a sense of the project activity.

Community contributions are always welcome through GitHub Issues and Pull Requests. When pull requests are made, our tooling automation bot, OfBorg will perform various checks to help ensure expression quality.

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