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[BUG] Workaround borked Git version

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- Backport #2335
- In Git version v2.43.1, the behavior of `GIT_FLUSH` was accidentially
flipped. This causes Forgejo to hang on the `check-attr` command,
because no output was being flushed.
- Workaround this by detecting if Git v2.43.1 is used and set
`GIT_FLUSH=0` thus getting the correct behavior.
- Ref: https://lore.kernel.org/git/CABn0oJvg3M_kBW-u=j3QhKnO=6QOzk-YFTgonYw_UvFS1NTX4g@mail.gmail.com/
- Resolves #2333.

(cherry picked from commit f68f880974)
This commit is contained in:
Gusted 2024-02-13 09:03:22 +01:00
parent bb5f4fd81b
commit ff468ab5e4
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GPG key ID: FD821B732837125F
2 changed files with 26 additions and 2 deletions
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20
modules/git/git.go
View file

@ -34,7 +34,8 @@ var (
DefaultContext context.Context
// SupportProcReceive version >= 2.29.0
SupportProcReceive bool
SupportProcReceive bool
InvertedGitFlushEnv bool // 2.43.1
gitVersion *version.Version
)
@ -186,6 +187,8 @@ func InitFull(ctx context.Context) (err error) {
}
SupportProcReceive = CheckGitVersionAtLeast("2.29") == nil
InvertedGitFlushEnv = CheckGitVersionEqual("2.43.1") == nil
if setting.LFS.StartServer {
if CheckGitVersionAtLeast("2.1.2") != nil {
return errors.New("LFS server support requires Git >= 2.1.2")
@ -314,6 +317,21 @@ func CheckGitVersionAtLeast(atLeast string) error {
return nil
}
// CheckGitVersionEqual checks if the git version is equal to the constraint version.
func CheckGitVersionEqual(equal string) error {
if _, err := loadGitVersion(); err != nil {
return err
}
atLeastVersion, err := version.NewVersion(equal)
if err != nil {
return err
}
if !gitVersion.Equal(atLeastVersion) {
return fmt.Errorf("installed git binary version %s is not equal to %s", gitVersion.Original(), equal)
}
return nil
}
func configSet(key, value string) error {
stdout, _, err := NewCommand(DefaultContext, "config", "--global", "--get").AddDynamicArguments(key).RunStdString(nil)
if err != nil && !err.IsExitCode(1) {

8
modules/git/repo_attribute.go
View file

@ -133,7 +133,13 @@ func (c *CheckAttributeReader) Init(ctx context.Context) error {
c.env = append(c.env, "GIT_WORK_TREE="+c.WorkTree)
}
c.env = append(c.env, "GIT_FLUSH=1")
// Version 2.43.1 has a bug where the behavior of `GIT_FLUSH` is flipped.
// Ref: https://lore.kernel.org/git/CABn0oJvg3M_kBW-u=j3QhKnO=6QOzk-YFTgonYw_UvFS1NTX4g@mail.gmail.com
if InvertedGitFlushEnv {
c.env = append(c.env, "GIT_FLUSH=0")
} else {
c.env = append(c.env, "GIT_FLUSH=1")
}
c.cmd.AddDynamicArguments(c.Attributes...)