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fix: use correct empty tree hash for SHA-256 repos

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Detect the repository's object format by checking the commit hash
length and use the appropriate empty tree commit hash. SHA-256 repos
use 64-character hashes and a different empty tree hash than SHA-1,
which caused the initial commit to show no files in the Commit pane.

Closes #5385
This commit is contained in:
Joaquin Hui Gomez 2026-03-29 13:04:45 +01:00
parent ca946c5fcc
commit 7c0a56bb90
1 changed files with 15 additions and 3 deletions
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18
pkg/commands/models/commit.go
View file

@ -8,8 +8,11 @@ import (
"github.com/stefanhaller/git-todo-parser/todo"
)
// Special commit hash for empty tree object
const EmptyTreeCommitHash = "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
// Empty tree commit hashes for SHA-1 and SHA-256 object formats
const (
EmptyTreeCommitHash = "4b825dc642cb6eb9a060e54bf8d69288fbee4904"
EmptyTreeCommitHashSha256 = "6ef19b41225c5369f1c104d45d8d85efa9b057b53b14b4b9b939dd74decc5321"
)
type CommitStatus uint8
@ -122,11 +125,20 @@ func (c *Commit) ShortRefName() string {
func (c *Commit) ParentRefName() string {
if c.IsFirstCommit() {
return EmptyTreeCommitHash
return emptyTreeCommitHash(c.Hash())
}
return c.RefName() + "^"
}
// emptyTreeCommitHash returns the empty tree hash matching the object format
// of the given commit hash. SHA-256 repos use 64-character hashes; SHA-1 uses 40.
func emptyTreeCommitHash(commitHash string) string {
if len(commitHash) > 40 {
return EmptyTreeCommitHashSha256
}
return EmptyTreeCommitHash
}
func (c *Commit) Parents() []string {
return lo.Map(c.parents, func(s *string, _ int) string { return *s })
}