Merge pull request #8073 from tweag/fix-root-channels-location

Fix root channels location
This commit is contained in:
John Ericson 2023-03-27 09:37:53 -04:00 committed by GitHub
commit 1d539aa287
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 83 additions and 18 deletions

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@ -58,7 +58,7 @@ jobs:
with:
fetch-depth: 0
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- uses: cachix/install-nix-action@v19
- uses: cachix/install-nix-action@v20
with:
install_url: https://releases.nixos.org/nix/nix-2.13.3/install
- uses: cachix/cachix-action@v12
@ -79,7 +79,7 @@ jobs:
steps:
- uses: actions/checkout@v3
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
- uses: cachix/install-nix-action@v19
- uses: cachix/install-nix-action@v20
with:
install_url: '${{needs.installer.outputs.installerURL}}'
install_options: "--tarball-url-prefix https://${{ env.CACHIX_NAME }}.cachix.org/serve"
@ -91,6 +91,8 @@ jobs:
- run: exec sh -c "nix-instantiate -E 'builtins.currentTime' --eval"
- run: exec zsh -c "nix-instantiate -E 'builtins.currentTime' --eval"
- run: exec fish -c "nix-instantiate -E 'builtins.currentTime' --eval"
- run: exec bash -c "nix-channel --add https://releases.nixos.org/nixos/unstable/nixos-23.05pre466020.60c1d71f2ba nixpkgs"
- run: exec bash -c "nix-channel --update && nix-env -iA nixpkgs.hello && hello"
docker_push_image:
needs: [check_secrets, tests]
@ -104,7 +106,7 @@ jobs:
- uses: actions/checkout@v3
with:
fetch-depth: 0
- uses: cachix/install-nix-action@v19
- uses: cachix/install-nix-action@v20
with:
install_url: https://releases.nixos.org/nix/nix-2.13.3/install
- run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV

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@ -8,6 +8,7 @@
#include "eval-inline.hh"
#include "filetransfer.hh"
#include "function-trace.hh"
#include "profiles.hh"
#include <algorithm>
#include <chrono>
@ -2491,8 +2492,8 @@ Strings EvalSettings::getDefaultNixPath()
if (!evalSettings.restrictEval && !evalSettings.pureEval) {
add(settings.useXDGBaseDirectories ? getStateDir() + "/nix/defexpr/channels" : getHome() + "/.nix-defexpr/channels");
add(settings.nixStateDir + "/profiles/per-user/root/channels/nixpkgs", "nixpkgs");
add(settings.nixStateDir + "/profiles/per-user/root/channels");
add(rootChannelsDir() + "/nixpkgs", "nixpkgs");
add(rootChannelsDir());
}
return res;

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@ -282,28 +282,48 @@ std::string optimisticLockProfile(const Path & profile)
Path profilesDir()
{
auto profileRoot = createNixStateDir() + "/profiles";
auto profileRoot =
(getuid() == 0)
? rootProfilesDir()
: createNixStateDir() + "/profiles";
createDirs(profileRoot);
return profileRoot;
}
Path rootProfilesDir()
{
return settings.nixStateDir + "/profiles/per-user/root";
}
Path getDefaultProfile()
{
Path profileLink = settings.useXDGBaseDirectories ? createNixStateDir() + "/profile" : getHome() + "/.nix-profile";
try {
auto profile =
getuid() == 0
? settings.nixStateDir + "/profiles/default"
: profilesDir() + "/profile";
auto profile = profilesDir() + "/profile";
if (!pathExists(profileLink)) {
replaceSymlink(profile, profileLink);
}
// Backwards compatibiliy measure: Make root's profile available as
// `.../default` as it's what NixOS and most of the init scripts expect
Path globalProfileLink = settings.nixStateDir + "/profiles/default";
if (getuid() == 0 && !pathExists(globalProfileLink)) {
replaceSymlink(profile, globalProfileLink);
}
return absPath(readLink(profileLink), dirOf(profileLink));
} catch (Error &) {
return profileLink;
}
}
Path defaultChannelsDir()
{
return profilesDir() + "/channels";
}
Path rootChannelsDir()
{
return rootProfilesDir() + "/channels";
}
}

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@ -68,13 +68,32 @@ void lockProfile(PathLocks & lock, const Path & profile);
rebuilt. */
std::string optimisticLockProfile(const Path & profile);
/* Creates and returns the path to a directory suitable for storing the users
profiles. */
/**
* Create and return the path to a directory suitable for storing the users
* profiles.
*/
Path profilesDir();
/* Resolve the default profile (~/.nix-profile by default, $XDG_STATE_HOME/
nix/profile if XDG Base Directory Support is enabled), and create if doesn't
exist */
/**
* Return the path to the profile directory for root (but don't try creating it)
*/
Path rootProfilesDir();
/**
* Create and return the path to the file used for storing the users's channels
*/
Path defaultChannelsDir();
/**
* Return the path to the channel directory for root (but don't try creating it)
*/
Path rootChannelsDir();
/**
* Resolve the default profile (~/.nix-profile by default,
* $XDG_STATE_HOME/nix/profile if XDG Base Directory Support is enabled),
* and create if doesn't exist
*/
Path getDefaultProfile();
}

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@ -169,6 +169,7 @@ static int main_nix_channel(int argc, char ** argv)
// Figure out the name of the channels profile.
profile = profilesDir() + "/channels";
createDirs(dirOf(profile));
enum {
cNone,

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@ -1403,11 +1403,11 @@ static int main_nix_env(int argc, char * * argv)
try {
createDirs(globals.instSource.nixExprPath);
replaceSymlink(
fmt("%s/profiles/per-user/%s/channels", settings.nixStateDir, getUserName()),
defaultChannelsDir(),
globals.instSource.nixExprPath + "/channels");
if (getuid() != 0)
replaceSymlink(
fmt("%s/profiles/per-user/root/channels", settings.nixStateDir),
rootChannelsDir(),
globals.instSource.nixExprPath + "/channels_root");
} catch (Error &) { }
}

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@ -30,6 +30,14 @@ let
};
};
mockChannel = pkgs:
pkgs.runCommandNoCC "mock-channel" {} ''
mkdir nixexprs
mkdir $out
echo -n 'someContent' > nixexprs/someFile
tar cvf - nixexprs | bzip2 > $out/nixexprs.tar.bz2
'';
disableSELinux = "sudo setenforce 0";
images = {
@ -189,6 +197,9 @@ let
echo "Running installer..."
$ssh "set -eux; $installScript"
echo "Copying the mock channel"
scp -r -P 20022 $ssh_opts ${mockChannel pkgs} vagrant@localhost:channel
echo "Testing Nix installation..."
$ssh <<EOF
set -ex
@ -204,6 +215,17 @@ let
out=\$(nix-build --no-substitute -E 'derivation { name = "foo"; system = "x86_64-linux"; builder = "/bin/sh"; args = ["-c" "echo foobar > \$out"]; }')
[[ \$(cat \$out) = foobar ]]
if pgrep nix-daemon; then
MAYBESUDO="sudo"
else
MAYBESUDO=""
fi
$MAYBESUDO \$(which nix-channel) --add file://\$HOME/channel myChannel
$MAYBESUDO \$(which nix-channel) --update
[[ \$(nix-instantiate --eval --expr 'builtins.readFile <myChannel/someFile>') = '"someContent"' ]]
EOF
echo "Done!"