git/refs/debug.c, branch v2.34.2

Merge branch 'hn/refs-errno-cleanup'

2021-10-04T04:49:18Z

Futz with the way 'errno' is relied on in the refs API to carry the failure modes up the call chain. * hn/refs-errno-cleanup: refs: make errno output explicit for read_raw_ref_fn refs/files-backend: stop setting errno from lock_ref_oid_basic refs: remove EINVAL errno output from specification of read_raw_ref_fn refs file backend: move raceproof_create_file() here

Merge branch 'ab/refs-files-cleanup'

2021-10-04T04:49:18Z

Continued work on top of the hn/refs-errno-cleanup topic. * ab/refs-files-cleanup: refs/files: remove unused "errno != ENOTDIR" condition refs/files: remove unused "errno == EISDIR" code refs/files: remove unused "oid" in lock_ref_oid_basic() refs API: remove OID argument to reflog_expire() reflog expire: don't lock reflogs using previously seen OID refs/files: add a comment about refs_reflog_exists() call refs: make repo_dwim_log() accept a NULL oid refs/debug: re-indent argument list for "prepare" refs/files: remove unused "skip" in lock_raw_ref() too refs/files: remove unused "extras/skip" in lock_ref_oid_basic() refs: drop unused "flags" parameter to lock_ref_oid_basic() refs/files: remove unused REF_DELETING in lock_ref_oid_basic() refs/packet: add missing BUG() invocations to reflog callbacks

refs: make errno output explicit for read_raw_ref_fn

2021-08-25T20:30:26Z

This makes it explicit how alternative ref backends should report errors in read_raw_ref_fn. read_raw_ref_fn needs to supply a credible errno for a number of cases. These are primarily: 1) The files backend calls read_raw_ref from lock_raw_ref, and uses the resulting error codes to create/remove directories as needed. 2) ENOENT should be translated in a zero OID, optionally with REF_ISBROKEN set, returning the last successfully resolved symref. This is necessary so read_raw_ref("HEAD") on an empty repo returns refs/heads/main (or the default branch du-jour), and we know on which branch to create the first commit. Make this information flow explicit by adding a failure_errno to the signature of read_raw_ref. All errnos from the files backend are still propagated unchanged, even though inspection suggests only ENOTDIR, EISDIR and ENOENT are relevant. Signed-off-by: Han-Wen Nienhuys Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

refs API: remove OID argument to reflog_expire()

2021-08-25T20:27:37Z

Since the the preceding commit the "oid" parameter to reflog_expire() is always NULL, but it was not cleaned up to reduce the size of the diff. Let's do that subsequent API and documentation cleanup now. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

refs/debug: re-indent argument list for "prepare"

2021-08-25T20:27:37Z

Re-indent this argument list that's been mis-indented since it was added in 34c319970d1 (refs/debug: trace into reflog expiry too, 2021-04-23). This makes a subsequent change smaller. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

refs/debug: quote prefix

2021-07-19T21:32:34Z

This makes the empty prefix ("") stand out better. Signed-off-by: Han-Wen Nienhuys Signed-off-by: Junio C Hamano

Merge branch 'bc/hash-transition-interop-part-1'

2021-05-10T07:59:46Z

SHA-256 transition. * bc/hash-transition-interop-part-1: hex: print objects using the hash algorithm member hex: default to the_hash_algo on zero algorithm value builtin/pack-objects: avoid using struct object_id for pack hash commit-graph: don't store file hashes as struct object_id builtin/show-index: set the algorithm for object IDs hash: provide per-algorithm null OIDs hash: set, copy, and use algo field in struct object_id builtin/pack-redundant: avoid casting buffers to struct object_id Use the final_oid_fn to finalize hashing of object IDs hash: add a function to finalize object IDs http-push: set algorithm when reading object ID Always use oidread to read into struct object_id hash: add an algo member to struct object_id

Merge branch 'hn/trace-reflog-expiry'

2021-05-07T03:47:38Z

The reflog expiry machinery has been taught to emit trace events. * hn/trace-reflog-expiry: refs/debug: trace into reflog expiry too

hash: provide per-algorithm null OIDs

2021-04-27T07:31:39Z

Up until recently, object IDs did not have an algorithm member, only a hash. Consequently, it was possible to share one null (all-zeros) object ID among all hash algorithms. Now that we're going to be handling objects from multiple hash algorithms, it's important to make sure that all object IDs have a correct algorithm field. Introduce a per-algorithm null OID, and add it to struct hash_algo. Introduce a wrapper function as well, and use it everywhere we used to use the null_oid constant. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano

refs/debug: trace into reflog expiry too

2021-04-27T06:59:39Z

Signed-off-by: Han-Wen Nienhuys Signed-off-by: Junio C Hamano