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* refs: move GIT_PACKED_REFS_FILE_MODE to refs.h as GIT_PACKEDREFS_FILE_MODEBrodie Rao2011-11-161-0/+1
| | | | | This groups the #define with the other ref-related file modes, and it makes the name consistent with the other packed-refs definitions.
* refs: Partial rewrite for read-only refsVicent Marti2011-11-061-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | 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 In-memory references are no longer updated automagically -- this was killing us.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.
* refs: split internal and external referencesschu2011-11-061-2/+0
| | | | | | | | | | | | | | | | | 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>
* *: correct and codify various file permissionsBrodie Rao2011-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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".
* fileops/repository: create (most) directories with 0777 permissionsBrodie Rao2011-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To further match how Git behaves, this change makes most of the directories libgit2 creates in a git repo have a file mode of 0777. Specifically: - Intermediate directories created with git_futils_mkpath2file() have 0777 permissions. This affects odb_loose, reflog, and refs. - The top level folder for bare repos is created with 0777 permissions. - The top level folder for non-bare repos is created with 0755 permissions. - /objects/info/, /objects/pack/, /refs/heads/, and /refs/tags/ are created with 0777 permissions. Additionally, the following changes have been made: - fileops functions that create intermediate directories have grown a new dirmode parameter. The only exception to this is filebuf's lock_file(), which unconditionally creates intermediate directories with 0777 permissions when GIT_FILEBUF_FORCE is set. - The test runner now sets the umask to 0 before running any tests. This ensurses all file mode checks are consistent across systems. - t09-tree.c now does a directory permissions check. I've avoided adding this check to other tests that might reuse existing directories from the prefabricated test repos. Because they're checked into the repo, they have 0755 permissions. - Other assorted directories created by tests have 0777 permissions.
* fetch: store FETCH_HEADCarlos Martín Nieto2011-10-081-0/+1
| | | | | | We should always save the remote's HEAD as FETCH_HEAD locally. Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
* Cleanup legal dataVicent Marti2011-09-191-0/+6
| | | | | | | | | | 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.
* reference_rename: git compliant reference renamingschu2011-07-061-0/+2
| | | | | | | | | | | | | | | | So far libgit2 didn't handle the following scenarios: * Rename of reference m -> m/m * Rename of reference n/n -> n Fixed. Since we don't write reflogs, we have to delete any old reflog for the renamed reference. Otherwise git.git will possibly fail when it finds invalid logs. Reported-by: nulltoken <emeric.fermas@gmail.com> Signed-off-by: schu <schu-github@schulog.org>
* refs: Do not overflow when normalizing refnamesVicent Marti2011-06-231-3/+4
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* refs: Allow MERGE_HEAD in normalize_name()Jakob Pfender2011-04-211-0/+1
| | | | | Do not return with EINVALIDREFNAME when trying to normalize MERGE_HEAD's name.
* Refs are now always in-sync on diskVicent Marti2011-03-161-0/+2
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* Refactored the opening and the initialization of a repository.nulltoken2011-03-031-0/+3
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* Finish the References APIVicent Marti2011-03-031-4/+2
| | | | | | | | | | | | | | The following methods have been implemented: git_reference_packall git_reference_rename git_reference_delete The library now has full support for packed references, including partial and total writing. Internal documentation has been updated with the details. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Split packed from unpacked referencesVicent Marti2011-03-031-10/+7
| | | | | | | | These two reference types are now stored separately to eventually allow the removal/renaming of loose references and rewriting of the refs packfile. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Brush up the refs APIVicent Marti2011-03-031-2/+1
| | | | | | | | Changed some more API details and updated documentation. Sketched API for addition/removal of entries. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Added git_reference__normalize_name() along with tests.nulltoken2011-03-031-0/+2
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* Make more methods return error codesVicent Marti2011-02-051-0/+1
| | | | | | | | git_revwalk_next now returns an error code when the iteration is over. git_repository_index now returns an error code when the index file could not be opened. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Fix more issues with Win32 EOLVicent Marti2011-02-021-1/+1
| | | | Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Refactor reference parsing codeVicent Marti2011-01-301-24/+16
| | | | | | | | | Several changes have been committed to allow the user to create in-memory references and write back to disk. Peeling of symbolic references has been made explicit. Added getter and setter methods for all attributes on a reference. Added corresponding documentation. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Merge nulltoken's reference parsing codenulltoken2011-01-291-0/+48
All the commits have been squashed into a single one before refactoring the final code, to keep everything tidy. Individual commit messages are as follows: Added repository reference looking up functionality placeholder. Added basic reference database definition and caching infrastructure. Removed useless constant. Added GIT_EINVALIDREFNAME error and description. Added missing description for GIT_EBAREINDEX. Added GIT_EREFCORRUPTED error and description. Added GIT_ETOONESTEDSYMREF error and description. Added resolving of direct and symbolic references. Prepared the packed-refs parsing. Added parsing of the packed-refs file content. When no loose reference has been found, the full content of the packed-refs file is parsed. All of the new (i.e. not previously parsed as a loose reference) references are eagerly stored in the cached references storage. The method packed_reference_file__parse() is in deer need of some refactoring. :-) Extracted to a method the parsing of the peeled target of a tag. Extracted to a method the parsing of a standard packed ref. Fixed leaky removal of the cached references. Ensured that a previously parsed packed reference isn't returned if a more up-to-date loose reference exists. Enhanced documentation of git_repository_reference_lookup(). Moved some refs related constants from repository.c to refs.h. Made parsing of a packed tag reference more robust. Updated git_repository_reference_lookup() documentation. Added some references to the test repository. Added some tests covering tag references looking up. Added some tests covering symbolic and head references looking up. Added some tests covering packed references looking up.
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