wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-25 23:11:16 +02:00
Code Activity

fetchGit: Ignore tarballTtl if rev is set and not in the repo.

Browse source 
Fixes #1697.
This commit is contained in:
Shea Levy 2017-11-23 21:50:01 -05:00
parent 0fc3e581e0
commit eedbc4e06c
No known key found for this signature in database
GPG key ID: 5C0BD6957D86FE27
3 changed files with 43 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

59
src/libexpr/primops/fetchGit.cc
View file

@ -89,32 +89,43 @@ GitInfo exportGit(ref<Store> store, const std::string & uri,
Path localRefFile = cacheDir + "/refs/heads/" + localRef;
/* If the local ref is older than ‘tarball-ttl’ seconds, do a git
fetch to update the local ref to the remote ref. */
bool doFetch;
time_t now = time(0);
struct stat st;
if (stat(localRefFile.c_str(), &st) != 0 ||
st.st_mtime <= now - settings.tarballTtl)
{
if (rev == "" ||
chomp(runProgram(
RunOptions("git", { "-C", cacheDir, "cat-file", "-t", rev })
.killStderr(true)).second) != "commit")
{
Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Git repository '%s'", uri));
// FIXME: git stderr messes up our progress indicator, so
// we're using --quiet for now. Should process its stderr.
runProgram("git", true, { "-C", cacheDir, "fetch", "--quiet", "--force", "--", uri, *ref + ":" + localRef });
struct timeval times[2];
times[0].tv_sec = now;
times[0].tv_usec = 0;
times[1].tv_sec = now;
times[1].tv_usec = 0;
utimes(localRefFile.c_str(), times);
/* If a rev was specified, we need to fetch if it's not in the
repo. */
if (rev != "") {
try {
runProgram("git", true, { "-C", cacheDir, "cat-file", "-e", rev });
doFetch = false;
} catch (ExecError & e) {
if (WIFEXITED(e.status)) {
doFetch = true;
} else {
throw;
}
}
} else {
/* If the local ref is older than ‘tarball-ttl’ seconds, do a
git fetch to update the local ref to the remote ref. */
struct stat st;
doFetch = stat(localRefFile.c_str(), &st) != 0 ||
st.st_mtime <= now - settings.tarballTtl;
}
if (doFetch)
{
Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Git repository '%s'", uri));
// FIXME: git stderr messes up our progress indicator, so
// we're using --quiet for now. Should process its stderr.
runProgram("git", true, { "-C", cacheDir, "fetch", "--quiet", "--force", "--", uri, *ref + ":" + localRef });
struct timeval times[2];
times[0].tv_sec = now;
times[0].tv_usec = 0;
times[1].tv_sec = now;
times[1].tv_usec = 0;
utimes(localRefFile.c_str(), times);
}
// FIXME: check whether rev is an ancestor of ref.