diff options
Diffstat (limited to 'refs/files-backend.c')
| -rw-r--r-- | refs/files-backend.c | 46 |
1 files changed, 38 insertions, 8 deletions
diff --git a/refs/files-backend.c b/refs/files-backend.c index d8b3f73147..fcaf4f7191 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -1733,9 +1733,9 @@ static int commit_ref_update(struct files_ref_store *refs, const struct object_id *oid, const char *logmsg, struct strbuf *err); -static int files_rename_ref(struct ref_store *ref_store, +static int files_copy_or_rename_ref(struct ref_store *ref_store, const char *oldrefname, const char *newrefname, - const char *logmsg) + const char *logmsg, int copy) { struct files_ref_store *refs = files_downcast(ref_store, REF_STORE_WRITE, "rename_ref"); @@ -1767,8 +1767,12 @@ static int files_rename_ref(struct ref_store *ref_store, } if (flag & REF_ISSYMREF) { - ret = error("refname %s is a symbolic ref, renaming it is not supported", - oldrefname); + if (copy) + ret = error("refname %s is a symbolic ref, copying it is not supported", + oldrefname); + else + ret = error("refname %s is a symbolic ref, renaming it is not supported", + oldrefname); goto out; } if (!refs_rename_ref_available(&refs->base, oldrefname, newrefname)) { @@ -1776,13 +1780,19 @@ static int files_rename_ref(struct ref_store *ref_store, goto out; } - if (log && rename(sb_oldref.buf, tmp_renamed_log.buf)) { + if (!copy && log && rename(sb_oldref.buf, tmp_renamed_log.buf)) { ret = error("unable to move logfile logs/%s to logs/"TMP_RENAMED_LOG": %s", oldrefname, strerror(errno)); goto out; } - if (refs_delete_ref(&refs->base, logmsg, oldrefname, + if (copy && log && copy_file(tmp_renamed_log.buf, sb_oldref.buf, 0644)) { + ret = error("unable to copy logfile logs/%s to logs/"TMP_RENAMED_LOG": %s", + oldrefname, strerror(errno)); + goto out; + } + + if (!copy && refs_delete_ref(&refs->base, logmsg, oldrefname, orig_oid.hash, REF_NODEREF)) { error("unable to delete old %s", oldrefname); goto rollback; @@ -1795,7 +1805,7 @@ static int files_rename_ref(struct ref_store *ref_store, * the safety anyway; we want to delete the reference whatever * its current value. */ - if (!refs_read_ref_full(&refs->base, newrefname, + if (!copy && !refs_read_ref_full(&refs->base, newrefname, RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE, oid.hash, NULL) && refs_delete_ref(&refs->base, NULL, newrefname, @@ -1826,7 +1836,10 @@ static int files_rename_ref(struct ref_store *ref_store, lock = lock_ref_sha1_basic(refs, newrefname, NULL, NULL, NULL, REF_NODEREF, NULL, &err); if (!lock) { - error("unable to rename '%s' to '%s': %s", oldrefname, newrefname, err.buf); + if (copy) + error("unable to copy '%s' to '%s': %s", oldrefname, newrefname, err.buf); + else + error("unable to rename '%s' to '%s': %s", oldrefname, newrefname, err.buf); strbuf_release(&err); goto rollback; } @@ -1877,6 +1890,22 @@ static int files_rename_ref(struct ref_store *ref_store, return ret; } +static int files_rename_ref(struct ref_store *ref_store, + const char *oldrefname, const char *newrefname, + const char *logmsg) +{ + return files_copy_or_rename_ref(ref_store, oldrefname, + newrefname, logmsg, 0); +} + +static int files_copy_ref(struct ref_store *ref_store, + const char *oldrefname, const char *newrefname, + const char *logmsg) +{ + return files_copy_or_rename_ref(ref_store, oldrefname, + newrefname, logmsg, 1); +} + static int close_ref(struct ref_lock *lock) { if (close_lock_file(lock->lk)) @@ -3383,6 +3412,7 @@ struct ref_storage_be refs_be_files = { files_create_symref, files_delete_refs, files_rename_ref, + files_copy_ref, files_ref_iterator_begin, files_read_raw_ref, |