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nix3-upgrade-nix: fix when there are differing pnames

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Change-Id: I19c7e24a4d46137127e76b7bb133e0184d73d1b6
This commit is contained in:
Qyriad 2024-05-23 20:22:15 -06:00 committed by jade
parent 076c19e0d1
commit f3f68fcfac
1 changed files with 17 additions and 1 deletions
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18
src/nix/upgrade-nix.cc
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@ -111,7 +111,23 @@ struct CmdUpgradeNix : MixDryRun, EvalCommand
if (pathExists(canonProfileDir + "/manifest.nix")) {
std::string nixEnvCmd = settings.nixBinDir + "/nix-env";
// {settings.nixBinDir}/nix-env is a symlink to a {settings.nixBinDir}/nix, which *then*
// is a symlink to /nix/store/meow-nix/bin/nix. We want /nix/store/meow-nix/bin/nix-env.
Path const nixInStore = canonPath(settings.nixBinDir + "/nix-env", true);
Path const nixEnvCmd = dirOf(nixInStore) + "/nix-env";
// First remove the existing Nix, then use that Nix by absolute path to
// install the new one, in case the new and old versions aren't considered
// to be "the same package" by nix-env's logic (e.g., if their pnames differ).
Strings removeArgs = {
"--uninstall",
nixEnvCmd,
"--profile",
this->profileDir,
};
printTalkative("running %s %s", nixEnvCmd, concatStringsSep(" ", removeArgs));
runProgram(nixEnvCmd, false, removeArgs);
Strings upgradeArgs = {
"--profile",
this->profileDir,