thodg/libgit2/src/refs.c

src/refs.c

Log

Author Commit Date CI Message
Russell Belfer b90500f0 2012-11-01T14:08:30 Improve docs, examples, warnings This improves docs in some of the public header files, cleans up and improves some of the example code, and fixes a couple of pedantic warnings in places.
Russell Belfer 744cc03e 2012-10-30T12:10:36 Add git_config_refresh() API to reload config This adds a new API that allows users to reload the config if the file has changed on disk. A new config callback function to refresh the config was added. The modified time and file size are used to test if the file needs to be reloaded (and are now stored in the disk backend object). In writing tests, just using mtime was a problem / race, so I wanted to check file size as well. To support that, I extended `git_futils_readbuffer_updated` to optionally check file size in addition to mtime, and I added a new function `git_filebuf_stats` to fetch the mtime and size for an open filebuf (so that the config could be easily refreshed after a write). Lastly, I moved some similar file checking code for attributes into filebuf. It is still only being used for attrs, but it seems potentially reusable, so I thought I'd move it over.
Russell Belfer 4c47a8bc 2012-10-17T14:14:51 Merge pull request #968 from arrbee/diff-support-typechange Support TYPECHANGE records in status and adjust checkout accordingly
Carlos Martín Nieto 7ae5ab56 2012-10-15T16:35:10 Fix leak in the tests Also introduce the slective ref trimming promised but also missed in the previous commit.
Carlos Martín Nieto 47f44b6e 2012-10-15T13:51:25 refs: loosen the OID parsing We used to require loose references to contain only an OID (possibly after trimming the string). This is however not enough for letting us lookup FETCH_HEAD, which can have a lot of content after the initial OID. Change the parsing rules so that a loose refernce must e at least 40 bytes long and the 41st (if it's there) must be accepted by isspace(3). This makes the trim unnecessary, so only do it for symrefs. This fixes #977.
nulltoken 3548fcf5 2012-10-11T14:00:26 refs: propagate EEXISTS upon renaming
Russell Belfer 0d64bef9 2012-10-05T15:56:57 Add complex checkout test and then fix checkout This started as a complex new test for checkout going through the "typechanges" test repository, but that revealed numerous issues with checkout, including: * complete failure with submodules * failure to create blobs with exec bits * problems when replacing a tree with a blob because the tree "example/" sorts after the blob "example" so the delete was being processed after the single file blob was created This fixes most of those problems and includes a number of other minor changes that made it easier to do that, including improving the TYPECHANGE support in diff/status, etc.
nulltoken 4ba23be1 2012-10-06T12:20:13 branch: deploy git_branch_is_head()
nulltoken f3cc7834 2012-09-22T12:51:34 refs: deploy git_repository_set_head() usage
nulltoken 74a24005 2012-09-21T10:28:20 refs: use constants for well-known names
Vicent Martí 8bc5cacc 2012-10-01T13:57:32 Merge pull request #961 from arrbee/win64-cleanups Win64 cleanups
Russell Belfer 7c411fd9 2012-10-01T12:32:55 Fix up more Win64 compile warnings
Carlos Martín Nieto c1281493 2012-09-30T11:37:53 refs: propagate EEXISTS Indicate whether the error comes from the ref already existing or elsewhere. We always perform the check and this lets the user write more concise code.
nulltoken 0adfa20a 2012-09-11T11:42:13 refspec: introduce git_refspec__parse()
nulltoken 77e06d7e 2012-09-17T07:11:32 refs: introduce git_reference_is_valid_name()
nulltoken c030ada7 2012-09-11T12:06:57 refs: make git_reference_normalize_name() accept refspec pattern
nulltoken c2948c77 2012-09-14T21:36:49 refs: prevent locked refs from being enumerated Fix #936
nulltoken 31665948 2012-08-24T21:30:45 refs: introduce git_reference_peel() Fix #530
Russell Belfer f335ecd6 2012-08-30T14:24:16 Diff iterators This refactors the diff output code so that an iterator object can be used to traverse and generate the diffs, instead of just the `foreach()` style with callbacks. The code has been rearranged so that the two styles can still share most functions. This also replaces `GIT_REVWALKOVER` with `GIT_ITEROVER` and uses that as a common error code for marking the end of iteration when using a iterator style of object.
Michael Schubert 0844ed06 2012-08-28T20:15:21 Fix parentheses warning
Vicent Marti 62eafd06 2012-08-27T14:54:52 Merge branch 'branch-delete-ref' into development Conflicts: include/git2/refs.h
nulltoken 2e0c8816 2012-08-26T22:08:22 refs: expose git_reference_normalize_name()
Vicent Marti 1c947daa 2012-08-23T15:47:29 branch: Change `git_branch_delete` to take a ref
Vicent Marti c07d9c95 2012-08-09T15:33:04 oid: Explicitly include `oid.h` for the inlined CMP
Joshua Peek 186c054d 2012-08-09T14:47:29 Revert implementation changes
Joshua Peek 28e00681 2012-08-09T14:39:56 Ignore ref oid terminator
Russell Belfer 2fe293b6 2012-08-09T11:36:21 trim whitespace when parsing loose refs
Joshua Peek 6ab68290 2012-08-09T12:39:09 Parse ref oids without trailing newline
Vicent Marti 51e1d808 2012-08-06T12:41:08 Merge remote-tracking branch 'arrbee/tree-walk-fixes' into development Conflicts: src/notes.c src/transports/git.c src/transports/http.c src/transports/local.c tests-clar/odb/foreach.c
Russell Belfer 5dca2010 2012-08-03T17:08:01 Update iterators for consistency across library This updates all the `foreach()` type functions across the library that take callbacks from the user to have a consistent behavior. The rules are: * A callback terminates the loop by returning any non-zero value * Once the callback returns non-zero, it will not be called again (i.e. the loop stops all iteration regardless of state) * If the callback returns non-zero, the parent fn returns GIT_EUSER * Although the parent returns GIT_EUSER, no error will be set in the library and `giterr_last()` will return NULL if called. This commit makes those changes across the library and adds tests for most of the iteration APIs to make sure that they follow the above rules.
nulltoken ef4d795e 2012-07-20T16:39:22 refs: drop git_reference_remote_tracking_from_branch()
nulltoken 88bcd515 2012-07-20T16:27:56 branch: introduce git_reference_is_branch()
nulltoken 151d81a6 2012-07-12T22:03:28 refs: fix a memory leak
nulltoken 84f18e35 2012-07-12T00:44:07 refs: introduce git_reference_remote_tracking_from_branch()
nulltoken 5ffd510d 2012-07-04T12:23:03 refs: remove seemingly useless giterr_clear() call
nulltoken 33c33707 2012-07-04T12:20:43 refs: deploy git_reference_has_log()
nulltoken 75261421 2012-07-04T11:58:04 refs: add git_reference_has_log()
nulltoken b6bfd96f 2012-07-03T12:07:33 refs: fix moving of the reflog when renaming a ref
nulltoken 527ed554 2012-06-22T15:51:44 references: introduce git_reference_foreach_glob()
nulltoken edebceff 2012-05-01T13:57:45 Add git_reset() Currently supports Soft and Mixed modes.
Vicent Martí 904b67e6 2012-05-18T01:48:50 errors: Rename error codes
Vicent Martí e172cf08 2012-05-18T01:21:06 errors: Rename the generic return codes
Vicent Martí 2e2e9785 2012-05-18T00:42:24 Properly tag all `enums` with a `_t`
Vicent Martí 4fbd1c00 2012-05-17T20:35:48 refs: git_reference_listall -> git_reference_list
nulltoken fa6420f7 2012-04-29T21:46:33 buf: deploy git_buf_len()
Michael Schubert 9738e2cd 2012-04-27T18:04:58 refs: fix unused-but-set warning
Russell Belfer c2b67043 2012-04-25T15:20:28 Rename git_khash_str to git_strmap, etc. This renamed `git_khash_str` to `git_strmap`, `git_hash_oid` to `git_oidmap`, and deletes `git_hashtable` from the tree, plus adds unit tests for `git_strmap`.
Russell Belfer 01fed0a8 2012-04-25T10:36:01 Convert hashtable usage over to khash This updates khash.h with some extra features (like error checking on allocations, ability to use wrapped malloc, foreach calls, etc), creates two high-level wrappers around khash: `git_khash_str` and `git_khash_oid` for string-to-void-ptr and oid-to-void-ptr tables, then converts all of the old usage of `git_hashtable` over to use these new hashtables. For `git_khash_str`, I've tried to create a set of macros that yield an API not too unlike the old `git_hashtable` API. Since the oid hashtable is only used in one file, I haven't bother to set up all those macros and just use the khash APIs directly for now.
Russell Belfer 2bc8fa02 2012-04-17T10:14:24 Implement git_pool paged memory allocator This adds a `git_pool` object that can do simple paged memory allocation with free for the entire pool at once. Using this, you can replace many small allocations with large blocks that can then cheaply be doled out in small pieces. This is best used when you plan to free the small blocks all at once - for example, if they represent the parsed state from a file or data stream that are either all kept or all discarded. There are two real patterns of usage for `git_pools`: either for "string" allocation, where the item size is a single byte and you end up just packing the allocations in together, or for "fixed size" allocation where you are allocating a large object (e.g. a `git_oid`) and you generally just allocation single objects that can be tightly packed. Of course, you can use it for other things, but those two cases are the easiest.
Russell Belfer 26515e73 2012-04-23T10:06:31 Rename to git_reference_name_to_oid
Russell Belfer 44ef8b1b 2012-04-13T13:00:10 Fix warnings on 64-bit windows builds This fixes all the warnings on win64 except those in deps, which come from the regex code.
Russell Belfer f201d613 2012-04-13T10:33:14 Add git_reference_lookup_oid and lookup_resolved Adds a new public reference function `git_reference_lookup_oid` that directly resolved a reference name to an OID without returning the intermediate `git_reference` object (hence, no free needed). Internally, this adds a `git_reference_lookup_resolved` function that combines looking up and resolving a reference. This allows us to be more efficient with memory reallocation. The existing `git_reference_lookup` and `git_reference_resolve` are reimplmented on top of the new utility and a few places in the code are changed to use one of the two new functions.
nulltoken 4615f0f7 2012-04-09T03:22:14 branch: add git_branch_move()
Russell Belfer 0d0fa7c3 2012-03-16T15:56:01 Convert attr, ignore, mwindow, status to new errors Also cleaned up some previously converted code that still had little things to polish.
Russell Belfer e1de726c 2012-03-12T22:55:40 Migrate ODB files to new error handling This migrates odb.c, odb_loose.c, odb_pack.c and pack.c to the new style of error handling. Also got the unix and win32 versions of map.c. There are some minor changes to other files but no others were completely converted. This also contains an update to filebuf so that a zeroed out filebuf will not think that the fd (== 0) is actually open (and inadvertently call close() on fd 0 if cleaned up). Lastly, this was built and tested on win32 and contains a bunch of fixes for the win32 build which was pretty broken.
Russell Belfer ae9e29fd 2012-03-06T16:14:31 Migrating diff to new error handling Ended up migrating a bunch of upstream functions as well including vector, attr_file, and odb in order to get this to work right.
Vicent Martí 1a481123 2012-02-17T00:13:34 error-handling: References Yes, this is error handling solely for `refs.c`, but some of the abstractions leak all ofer the code base.
Vicent Martí 45d387ac 2012-02-15T16:54:17 refs: Error handling rework. WIP
Russell Belfer 854eccbb 2012-02-29T12:04:59 Clean up GIT_UNUSED macros on all platforms It turns out that commit 31e9cfc4cbcaf1b38cdd3dbe3282a8f57e5366a5 did not fix the GIT_USUSED behavior on all platforms. This commit walks through and really cleans things up more thoroughly, getting rid of the unnecessary stuff. To remove the use of some GIT_UNUSED, I ended up adding a couple of new iterators for hashtables that allow you to iterator just over keys or just over values. In making this change, I found a bug in the clar tests (where we were doing *count++ but meant to do (*count)++ to increment the value). I fixed that but then found the test failing because it was not really using an empty repo. So, I took some of the code that I wrote for iterator testing and moved it to clar_helpers.c, then made use of that to make it easier to open fixtures on a per test basis even within a single test file.
Vicent Martí 13224ea4 2012-02-27T04:28:31 buffer: Unify `git_fbuffer` and `git_buf` This makes so much sense that I can't believe it hasn't been done before. Kill the old `git_fbuffer` and read files straight into `git_buf` objects. Also: In order to fully support 4GB files in 32-bit systems, the `git_buf` implementation has been changed from using `ssize_t` for storage and storing negative values on allocation failure, to using `size_t` and changing the buffer pointer to a magical pointer on allocation failure. Hopefully this won't break anything.
schu 5e0de328 2012-02-13T17:10:24 Update Copyright header Signed-off-by: schu <schu-github@schulog.org>
Carlos Martín Nieto 20c50b9e 2012-01-19T19:09:47 refs: don't leak the packref when deleting/renaming When we remove the ref from the hashtable, we need to free the packref.
Russell Belfer 1744fafe 2012-01-17T15:49:47 Move path related functions from fileops to path This takes all of the functions that look up simple data about paths (such as `git_futils_isdir`) and moves them over to path.h (becoming `git_path_isdir`). This leaves fileops.h just with functions that actually manipulate the filesystem or look at the file contents in some way. As part of this, the dir.h header which is really just for win32 support was moved into win32 (with some minor changes).
Vicent Martí 9191a6d2 2012-01-02T09:56:48 Merge remote-tracking branch 'arrbee/git-attributes' into development Conflicts: tests-clay/clay_main.c
Vicent Martí fa515656 2011-12-25T00:22:20 refs: Fix double free Includes relevant Clay test
Russell Belfer ee1f0b1a 2011-12-16T10:56:43 Add APIs for git attributes This adds APIs for querying git attributes. In addition to the new API in include/git2/attr.h, most of the action is in src/attr_file.[hc] which contains utilities for dealing with a single attributes file, and src/attr.[hc] which contains the implementation of the APIs that merge all applicable attributes files.
Russell Belfer 97769280 2011-11-30T11:27:15 Use git_buf for path storage instead of stack-based buffers This converts virtually all of the places that allocate GIT_PATH_MAX buffers on the stack for manipulating paths to use git_buf objects instead. The patch is pretty careful not to touch the public API for libgit2, so there are a few places that still use GIT_PATH_MAX. This extends and changes some details of the git_buf implementation to add a couple of extra functions and to make error handling easier. This includes serious alterations to all the path.c functions, and several of the fileops.c ones, too. Also, there are a number of new functions that parallel existing ones except that use a git_buf instead of a stack-based buffer (such as git_config_find_global_r that exists alongsize git_config_find_global). This also modifies the win32 version of p_realpath to allocate whatever buffer size is needed to accommodate the realpath instead of hardcoding a GIT_PATH_MAX limit, but that change needs to be tested still.
Vicent Marti 45e79e37 2011-11-26T04:59:21 Rename all `_close` methods There's no difference between `_free` and `_close` semantics: keep everything with the same name to avoid confusions.
Vicent Marti 9462c471 2011-11-25T08:16:26 repository: Change ownership semantics The ownership semantics have been changed all over the library to be consistent. There are no more "borrowed" or duplicated references. Main changes: - `git_repository_open2` and `3` have been dropped. - Added setters and getters to hotswap all the repository owned objects: `git_repository_index` `git_repository_set_index` `git_repository_odb` `git_repository_set_odb` `git_repository_config` `git_repository_set_config` `git_repository_workdir` `git_repository_set_workdir` Now working directories/index files/ODBs and so on can be hot-swapped after creating a repository and between operations. - All these objects now have proper ownership semantics with refcounting: they all require freeing after they are no longer needed (the repository always keeps its internal reference). - Repository open and initialization has been updated to keep in mind the configuration files. Bare repositories are now always detected, and a default config file is created on init. - All the tests affected by these changes have been dropped from the old test suite and ported to the new one.
Vicent Martí e42ea1f4 2011-11-25T21:30:08 Merge pull request #491 from schu/refs-cleanup reference_rename() cleanup
Russell Belfer b762e576 2011-11-17T15:10:27 filebuf: add GIT_FILEBUF_INIT and protect multiple opens and cleanups Update all stack allocations of git_filebuf to use GIT_FILEBUF_INIT and make git_filebuf_open and git_filebuf_cleanup safe to be called multiple times on the same buffer. Signed-off-by: Vicent Marti <tanoku@gmail.com>
schu a5cd086d 2011-11-21T11:56:00 reference_rename: don't delete the reflog reference_rename used to delete an old reflog file when renaming a reference to not confuse git.git. Don't do this anymore but let the user take care of writing a reflog entry. Signed-off-by: schu <schu-github@schulog.org>
schu 64093ce5 2011-11-21T11:30:14 reference_rename: make sure to rollback Actually rollback when we can't create the new reference. Mark the rolled back reference as loose. Signed-off-by: schu <schu-github@schulog.org>
Brodie Rao 9788e72a 2011-11-16T11:39:03 refs: move GIT_PACKED_REFS_FILE_MODE to refs.h as GIT_PACKEDREFS_FILE_MODE This groups the #define with the other ref-related file modes, and it makes the name consistent with the other packed-refs definitions.
Brodie Rao 7096d0f9 2011-11-16T11:36:13 refs: use 0666 permissions when writing packed-refs, not 0644 This matches stock Git's behavior.
Carlos Martín Nieto 657a3951 2011-11-07T20:32:03 Write packed-refs with 0644 permissions Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
Carlos Martín Nieto 718eb4b8 2011-11-07T20:06:01 Reword packed-refs error messages so they're easier to track down Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
Vicent Marti d4a0b124 2011-10-30T21:58:33 refs: Partial rewrite for read-only refs This new version of the references code is significantly faster and hopefully easier to read. External API stays the same. A new method `git_reference_reload()` has been added to force updating a memory reference from disk. In-memory references are no longer updated automagically -- this was killing us. If a reference is deleted externally and the user doesn't reload the memory object, nothing critical happens: any functions using that reference should fail gracefully (e.g. deletion, renaming, and so on). All generated references from the API are read only and must be free'd by the user. There is no reference counting and no traces of generated references are kept in the library. There is no longer an internal representation for references. There is only one reference struct `git_reference`, and symbolic/oid targets are stored inside an union. Packfile references are stored using an optimized struct with flex array for reference names. This should significantly reduce the memory cost of loading the packfile from disk.
schu 549bbd13 2011-08-13T18:14:39 git_reference_rename: cleanup reference renaming git_reference_rename() didn't properly cleanup old references given by the user to not break some ugly old tests. Since references don't point to libgit's internal cache anymore we can cleanup git_reference_rename() to be somewhat less messy. Signed-off-by: schu <schu-github@schulog.org>
schu a46ec457 2011-08-10T16:19:42 refs: split internal and external references Currently libgit2 shares pointers to its internal reference cache with the user. This leads to several problems like invalidation of reference pointers when reordering the cache or manipulation of the cache from user side. Give each user its own git_reference instead of leaking the internal representation (struct reference). Add the following new API functions: * git_reference_free * git_reference_is_packed Signed-off-by: schu <schu-github@schulog.org>
Vicent Martí 89fb8f02 2011-10-28T19:04:23 Merge pull request #456 from brodie/perm-fixes Create objects, indexes, and directories with the right file permissions
Vicent Marti 3286c408 2011-10-28T14:51:13 global: Properly use `git__` memory wrappers Ensure that all memory related functions (malloc, calloc, strdup, free, etc) are using their respective `git__` wrappers.
Brodie Rao 01ad7b3a 2011-09-06T15:48:45 *: correct and codify various file permissions The following files now have 0444 permissions: - loose objects - pack indexes - pack files - packs downloaded by fetch - packs downloaded by the HTTP transport And the following files now have 0666 permissions: - config files - repository indexes - reflogs - refs This brings libgit2 more in line with Git. Note that git_filebuf_commit() and git_filebuf_commit_at() have both gained a new mode parameter. The latter change fixes an important issue where filebufs created with GIT_FILEBUF_TEMPORARY received 0600 permissions (due to mkstemp(3) usage). Now we chmod() the file before renaming it into place. Tests have been added to confirm that new commit, tag, and tree objects are created with the right permissions. I don't have access to Windows, so for now I've guarded the tests with "#ifndef GIT_WIN32".
Carlos Martín Nieto 517bda19 2011-10-04T00:30:01 fetch: store FETCH_HEAD We should always save the remote's HEAD as FETCH_HEAD locally. Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
schu 472fa08f 2011-09-30T10:31:41 refs.c: fix reference_rename 6c8b458 removed an "unused" variable needed for git_hashtable_insert2(), causing a segfault in reference_rename(). Instead, use git_hashtable_insert(). Signed-off-by: schu <schu-github@schulog.org>
Vicent Marti 6c8b458d 2011-09-29T17:04:45 mingw: Fix compilation warnings
schu 93fdbe00 2011-09-20T11:11:59 refs: fix git_reference_rename() reference_rename() recently failed when renaming an existing reference refs/heads/foo/bar -> refs/heads/foo because of a change in the underlying functions / error codes. Fixes #412. Signed-off-by: schu <schu-github@schulog.org>
Vicent Martí 71a4c1f1 2011-09-18T20:07:59 Merge pull request #384 from kiryl/warnings Add more -W flags to CFLAGS
Vicent Marti 87d9869f 2011-09-19T03:34:49 Tabify everything There were quite a few places were spaces were being used instead of tabs. Try to catch them all. This should hopefully not break anything. Except for `git blame`. Oh well.
Vicent Marti bb742ede 2011-09-19T01:54:32 Cleanup legal data 1. The license header is technically not valid if it doesn't have a copyright signature. 2. The COPYING file has been updated with the different licenses used in the project. 3. The full GPLv2 header in each file annoys me.
Kirill A. Shutemov d568d585 2011-08-30T23:55:22 CMakefile: add -Wmissing-prototypes and fix warnings Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
schu d4958b88 2011-08-17T15:58:03 refs.c: remove two lines of dead code Signed-off-by: schu <schu-github@schulog.org>
Carlos Martín Nieto 50a8fd03 2011-08-16T18:16:44 Fix the reference character check for Unicode We need to do an unsigned comparison, as otherwise UTF-8 characters might look like they have the sign bit set and the check will fail. Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
nulltoken d1f34693 2011-08-09T12:07:47 util: Add git__strcmp_cb() wrapper We don't want direct pointers to the CRT on Windows, we may get stdcall conflicts.
Vicent Marti f6867e63 2011-08-08T16:56:28 Fix compilation in Windows
Vicent Martí cb1c7563 2011-07-28T05:32:47 Merge pull request #335 from carlosmn/read-updated Don't stat so much when reading references
Kirill A. Shutemov b75bec94 2011-07-15T18:24:35 refs: fix cast warning /home/kas/git/public/libgit2/src/refs.c: In function ‘normalize_name’: /home/kas/git/public/libgit2/src/refs.c:1681:12: warning: cast discards ‘__attribute__((const))’ qualifier from pointer target type [-Wcast-qual] Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Carlos Martín Nieto c4982328 2011-07-23T12:09:51 refs: don't stat so much In reference_read we stat a file and then call futils which stats it again. Use git_futils_readbuffer_updated to avoid the extra stat call. This introduces another parameter which is used to tell the caller whether the file was read or not. Modify the callers to take advantage of this new feature. This change removes ~140 stat calls from the test suite. Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Kirill A. Shutemov 5c6ae009 2011-07-18T01:54:40 refs: fix memory leak on rename Current implementation of git_reference_rename() removes 'ref' from loose cache, but not frees it. In result 'ref' is not reachable any more and we have got memory leak. Let's re-add 'ref' with corrected name to loose cache instead of 'new_ref' and free 'new_ref' properly. 'rollback' path seems leak too. git_reference_rename() need to be rewritten for proper resource management. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
schu ca6f203c 2011-07-12T17:53:22 reference_rename: make sure old_name gets freed Signed-off-by: schu <schu-github@schulog.org>
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