diff options
| -rw-r--r-- | src/libfetchers/git.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/libfetchers/git.cc b/src/libfetchers/git.cc index bfc58f7a1..8468d2afc 100644 --- a/src/libfetchers/git.cc +++ b/src/libfetchers/git.cc @@ -13,6 +13,12 @@ using namespace std::string_literals; namespace nix::fetchers { +// Explicit initial branch of our bare repo to suppress warnings from new version of git. +// The value itself does not matter, since we always fetch a specific revision or branch. +// It is set with `-c init.defaultBranch=` instead of `--initial-branch=` to stay compatible with +// old version of git, which will ignore unrecognized `-c` options. +const std::string gitInitialBranch = "__nix_dummy_branch"; + static std::string readHead(const Path & path) { return chomp(runProgram("git", true, { "-C", path, "rev-parse", "--abbrev-ref", "HEAD" })); @@ -324,7 +330,7 @@ struct GitInputScheme : InputScheme lockFile(lock.get(), ltWrite, true); if (!pathExists(cacheDir)) { - runProgram("git", true, { "init", "--bare", repoDir }); + runProgram("git", true, { "-c", "init.defaultBranch=" + gitInitialBranch, "init", "--bare", repoDir }); } deleteLockFile(cacheDirLock, lock.get()); @@ -436,7 +442,7 @@ struct GitInputScheme : InputScheme Path tmpGitDir = createTempDir(); AutoDelete delTmpGitDir(tmpGitDir, true); - runProgram("git", true, { "init", tmpDir, "--separate-git-dir", tmpGitDir }); + runProgram("git", true, { "-c", "init.defaultBranch=" + gitInitialBranch, "init", tmpDir, "--separate-git-dir", tmpGitDir }); // TODO: repoDir might lack the ref (it only checks if rev // exists, see FIXME above) so use a big hammer and fetch // everything to ensure we get the rev. |