mirror of https://github.com/go-gitea/gitea.git
99 lines
2.9 KiB
Go
99 lines
2.9 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package utils
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import (
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gocontext "context"
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"fmt"
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"net/http"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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)
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// ResolveRefOrSha resolve ref to sha if exist
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func ResolveRefOrSha(ctx *context.APIContext, ref string) string {
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if len(ref) == 0 {
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ctx.Error(http.StatusBadRequest, "ref not given", nil)
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return ""
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}
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sha := ref
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// Search branches and tags
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for _, refType := range []string{"heads", "tags"} {
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refSHA, lastMethodName, err := searchRefCommitByType(ctx, refType, ref)
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if err != nil {
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ctx.Error(http.StatusInternalServerError, lastMethodName, err)
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return ""
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}
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if refSHA != "" {
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sha = refSHA
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break
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}
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}
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sha = MustConvertToSHA1(ctx, ctx.Repo, sha)
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if ctx.Repo.GitRepo != nil {
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err := ctx.Repo.GitRepo.AddLastCommitCache(ctx.Repo.Repository.GetCommitsCountCacheKey(ref, ref != sha), ctx.Repo.Repository.FullName(), sha)
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if err != nil {
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log.Error("Unable to get commits count for %s in %s. Error: %v", sha, ctx.Repo.Repository.FullName(), err)
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}
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}
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return sha
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}
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// GetGitRefs return git references based on filter
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func GetGitRefs(ctx *context.APIContext, filter string) ([]*git.Reference, string, error) {
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if ctx.Repo.GitRepo == nil {
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return nil, "", fmt.Errorf("no open git repo found in context")
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}
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if len(filter) > 0 {
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filter = "refs/" + filter
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}
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refs, err := ctx.Repo.GitRepo.GetRefsFiltered(filter)
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return refs, "GetRefsFiltered", err
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}
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func searchRefCommitByType(ctx *context.APIContext, refType, filter string) (string, string, error) {
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refs, lastMethodName, err := GetGitRefs(ctx, refType+"/"+filter) // Search by type
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if err != nil {
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return "", lastMethodName, err
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}
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if len(refs) > 0 {
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return refs[0].Object.String(), "", nil // Return found SHA
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}
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return "", "", nil
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}
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// ConvertToObjectID returns a full-length SHA1 from a potential ID string
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func ConvertToObjectID(ctx gocontext.Context, repo *context.Repository, commitID string) (git.ObjectID, error) {
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objectFormat, _ := repo.GitRepo.GetObjectFormat()
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if len(commitID) == objectFormat.FullLength() && objectFormat.IsValid(commitID) {
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sha, err := objectFormat.NewIDFromString(commitID)
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if err == nil {
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return sha, nil
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}
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}
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gitRepo, closer, err := git.RepositoryFromContextOrOpen(ctx, repo.Repository.RepoPath())
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if err != nil {
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return objectFormat.EmptyObjectID(), fmt.Errorf("RepositoryFromContextOrOpen: %w", err)
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}
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defer closer.Close()
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return gitRepo.ConvertToGitID(commitID)
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}
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// MustConvertToSHA1 returns a full-length SHA1 string from a potential ID string, or returns origin input if it can't convert to SHA1
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func MustConvertToSHA1(ctx gocontext.Context, repo *context.Repository, commitID string) string {
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sha, err := ConvertToObjectID(ctx, repo, commitID)
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if err != nil {
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return commitID
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}
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return sha.String()
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}
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