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Merge pull request #374 from snebel29/feat/add-example
examples: added "tag find if head is tagged"
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package main | ||
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import ( | ||
"fmt" | ||
"os" | ||
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"github.com/go-git/go-git/v5" | ||
. "github.com/go-git/go-git/v5/_examples" | ||
"github.com/go-git/go-git/v5/plumbing" | ||
) | ||
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// Basic example of how to find if HEAD is tagged. | ||
func main() { | ||
CheckArgs("<path>") | ||
path := os.Args[1] | ||
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// We instantiate a new repository targeting the given path (the .git folder) | ||
r, err := git.PlainOpen(path) | ||
CheckIfError(err) | ||
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// Get HEAD reference to use for comparison later on. | ||
ref, err := r.Head() | ||
CheckIfError(err) | ||
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tags, err := r.Tags() | ||
CheckIfError(err) | ||
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// List all tags, both lightweight tags and annotated tags and see if some tag points to HEAD reference. | ||
err = tags.ForEach(func(t *plumbing.Reference) error { | ||
// This technique should work for both lightweight and annotated tags. | ||
revHash, err := r.ResolveRevision(plumbing.Revision(t.Name())) | ||
CheckIfError(err) | ||
if *revHash == ref.Hash() { | ||
fmt.Printf("Found tag %s with hash %s pointing to HEAD %s\n", t.Name().Short(), revHash, ref.Hash()) | ||
} | ||
return nil | ||
}) | ||
} |