git/path.c, branch v2.22.1

Merge branch 'nd/rewritten-ref-is-per-worktree'

2019-04-09T17:14:23Z

"git rebase" uses the refs/rewritten/ hierarchy to store its intermediate states, which inherently makes the hierarchy per worktree, but it didn't quite work well. * nd/rewritten-ref-is-per-worktree: Make sure refs/rewritten/ is per-worktree files-backend.c: reduce duplication in add_per_worktree_entries_to_dir() files-backend.c: factor out per-worktree code in loose_fill_ref_dir()

Make sure refs/rewritten/ is per-worktree

2019-03-08T02:57:47Z

a9be29c981 (sequencer: make refs generated by the `label` command worktree-local, 2018-04-25) adds refs/rewritten/ as per-worktree reference space. Unfortunately (my bad) there are a couple places that need update to make sure it's really per-worktree. - add_per_worktree_entries_to_dir() is updated to make sure ref listing look at per-worktree refs/rewritten/ instead of per-repo one [1] - common_list[] is updated so that git_path() returns the correct location. This includes "rev-parse --git-path". This mess is created by me. I started trying to fix it with the introduction of refs/worktree, where all refs will be per-worktree without special treatments. Unfortunate refs/rewritten came before refs/worktree so this is all we can do. This also fixes logs/refs/worktree not being per-worktree. [1] note that ref listing still works sometimes. For example, if you have .git/worktrees/foo/refs/rewritten/bar AND the directory .git/worktrees/refs/rewritten, refs/rewritten/bar will show up. add_per_worktree_entries_to_dir() is only needed when the directory .git/worktrees/refs/rewritten is missing. Reported-by: Phillip Wood Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

Merge branch 'jk/loose-object-cache'

2019-01-04T21:33:32Z

Code clean-up with optimization for the codepath that checks (non-)existence of loose objects. * jk/loose-object-cache: odb_load_loose_cache: fix strbuf leak fetch-pack: drop custom loose object cache sha1-file: use loose object cache for quick existence check object-store: provide helpers for loose_objects_cache sha1-file: use an object_directory for the main object dir handle alternates paths the same as the main object dir sha1_file_name(): overwrite buffer instead of appending rename "alternate_object_database" to "object_directory" submodule--helper: prefer strip_suffix() to ends_with() fsck: do not reuse child_process structs

Merge branch 'nd/per-worktree-ref-iteration'

2018-11-13T13:37:26Z

The code to traverse objects for reachability, used to decide what objects are unreferenced and expendable, have been taught to also consider per-worktree refs of other worktrees as starting points to prevent data loss. * nd/per-worktree-ref-iteration: git-worktree.txt: correct linkgit command name reflog expire: cover reflog from all worktrees fsck: check HEAD and reflog from other worktrees fsck: move fsck_head_link() to get_default_heads() to avoid some globals revision.c: better error reporting on ref from different worktrees revision.c: correct a parameter name refs: new ref types to make per-worktree refs visible to all worktrees Add a place for (not) sharing stuff between worktrees refs.c: indent with tabs, not spaces

sha1-file: use an object_directory for the main object dir

2018-11-13T05:22:03Z

Our handling of alternate object directories is needlessly different from the main object directory. As a result, many places in the code basically look like this: do_something(r->objects->objdir); for (odb = r->objects->alt_odb_list; odb; odb = odb->next) do_something(odb->path); That gets annoying when do_something() is non-trivial, and we've resorted to gross hacks like creating fake alternates (see find_short_object_filename()). Instead, let's give each raw_object_store a unified list of object_directory structs. The first will be the main store, and everything after is an alternate. Very few callers even care about the distinction, and can just loop over the whole list (and those who care can just treat the first element differently). A few observations: - we don't need r->objects->objectdir anymore, and can just mechanically convert that to r->objects->odb->path - object_directory's path field needs to become a real pointer rather than a FLEX_ARRAY, in order to fill it with expand_base_dir() - we'll call prepare_alt_odb() earlier in many functions (i.e., outside of the loop). This may result in us calling it even when our function would be satisfied looking only at the main odb. But this doesn't matter in practice. It's not a very expensive operation in the first place, and in the majority of cases it will be a noop. We call it already (and cache its results) in prepare_packed_git(), and we'll generally check packs before loose objects. So essentially every program is going to call it immediately once per program. Arguably we should just prepare_alt_odb() immediately upon setting up the repository's object directory, which would save us sprinkling calls throughout the code base (and forgetting to do so has been a source of subtle bugs in the past). But I've stopped short of that here, since there are already a lot of other moving parts in this patch. - Most call sites just get shorter. The check_and_freshen() functions are an exception, because they have entry points to handle local and nonlocal directories separately. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

Merge branch 'tb/char-may-be-unsigned'

2018-11-06T06:50:22Z

Build portability fix. * tb/char-may-be-unsigned: path.c: char is not (always) signed

path.c: char is not (always) signed

2018-10-26T02:20:01Z

If a "char" in C is signed or unsigned is not specified, because it is out of tradition "implementation dependent". Therefore constructs like "if (name[i] < 0)" are not portable, use "if (name[i] & 0x80)" instead. Detected by "gcc (Raspbian 6.3.0-18+rpi1+deb9u1) 6.3.0 20170516" when setting DEVELOPER = 1 DEVOPTS = extra-all Signed-off-by: Torsten Bögershausen Signed-off-by: Junio C Hamano

Add a place for (not) sharing stuff between worktrees

2018-10-06T23:21:18Z

When multiple worktrees are used, we need rules to determine if something belongs to one worktree or all of them. Instead of keeping adding rules when new stuff comes (*), have a generic rule: - Inside $GIT_DIR, which is per-worktree by default, add $GIT_DIR/common which is always shared. New features that want to share stuff should put stuff under this directory. - Inside refs/, which is shared by default except refs/bisect, add refs/worktree/ which is per-worktree. We may eventually move refs/bisect to this new location and remove the exception in refs code. (*) And it may also include stuff from external commands which will have no way to modify common/per-worktree rules. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

Merge branch 'sb/object-store-grafts'

2018-07-18T19:20:28Z

The conversion to pass "the_repository" and then "a_repository" throughout the object access API continues. * sb/object-store-grafts: commit: allow lookup_commit_graft to handle arbitrary repositories commit: allow prepare_commit_graft to handle arbitrary repositories shallow: migrate shallow information into the object parser path.c: migrate global git_path_* to take a repository argument cache: convert get_graft_file to handle arbitrary repositories commit: convert read_graft_file to handle arbitrary repositories commit: convert register_commit_graft to handle arbitrary repositories commit: convert commit_graft_pos() to handle arbitrary repositories shallow: add repository argument to is_repository_shallow shallow: add repository argument to check_shallow_file_for_update shallow: add repository argument to register_shallow shallow: add repository argument to set_alternate_shallow_file commit: add repository argument to lookup_commit_graft commit: add repository argument to prepare_commit_graft commit: add repository argument to read_graft_file commit: add repository argument to register_commit_graft commit: add repository argument to commit_graft_pos object: move grafts to object parser object-store: move object access functions to object-store.h

Sync with Git 2.17.1

2018-05-29T08:10:05Z

* maint: (25 commits) Git 2.17.1 Git 2.16.4 Git 2.15.2 Git 2.14.4 Git 2.13.7 fsck: complain when .gitmodules is a symlink index-pack: check .gitmodules files with --strict unpack-objects: call fsck_finish() after fscking objects fsck: call fsck_finish() after fscking objects fsck: check .gitmodules content fsck: handle promisor objects in .gitmodules check fsck: detect gitmodules files fsck: actually fsck blob data fsck: simplify ".git" check index-pack: make fsck error message more specific verify_path: disallow symlinks in .gitmodules update-index: stat updated files earlier verify_dotfile: mention case-insensitivity in comment verify_path: drop clever fallthrough skip_prefix: add case-insensitive variant ...