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* Implement global/system file search pathsRussell Belfer2013-03-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The goal of this work is to expose the search logic for "global", "system", and "xdg" files through the git_libgit2_opts() interface. Behind the scenes, I changed the logic for finding files to have a notion of a git_strarray that represents a search path and to store a separate search path for each of the three tiers of config file. For each tier, I implemented a function to initialize it to default values (generally based on environment variables), and then general interfaces to get it, set it, reset it, and prepend new directories to it. Next, I exposed these interfaces through the git_libgit2_opts interface, reusing the GIT_CONFIG_LEVEL_SYSTEM, etc., constants for the user to control which search path they were modifying. There are alternative designs for the opts interface / argument ordering, so I'm putting this phase out for discussion. Additionally, I ended up doing a little bit of clean up regarding attr.h and attr_file.h, adding a new attrcache.h so the other two files wouldn't have to be included in so many places.
* immutable references and a pluggable ref databaseEdward Thomson2013-03-071-1/+3
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* update copyrightsEdward Thomson2013-01-081-1/+1
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* Merge branch 'diff-crlf-filters' into developmentVicent Marti2012-09-111-23/+2
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| * Reorg internal odb read header and object lookupRussell Belfer2012-09-101-23/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Often `git_odb_read_header` will "fail" and have to read the entire object into memory instead of just the header. When this happens, the object is loaded and then disposed of immediately, which makes it difficult to efficiently use the header information to decide if the object should be loaded (since attempting to do so will often result in loading the object twice). This commit takes the existing code and reorganizes it to have two new functions: - `git_odb__read_header_or_object` which acts just like the old read header function except that it returns the object, too, if it was forced to load the whole thing. It then becomes the callers responsibility to free the `git_odb_object`. - `git_object__from_odb_object` which was extracted from the old `git_object_lookup` and creates a subclass of `git_object` from an existing `git_odb_object` (separating the ODB lookup from the `git_object` creation). This allows you to use the first header reading function efficiently without instantiating the `git_odb_object` twice. There is no net change to the behavior of any of the existing functions, but this allows internal code to tap into the ODB lookup and object creation to be more efficient.
* | errors: deploy GIT_EBAREREPO usagenulltoken2012-09-061-0/+15
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* Add template dir and set gid to repo initRussell Belfer2012-08-221-1/+0
| | | | | | | | | | | | | | | | | This extends git_repository_init_ext further with support for initializing the repository from an external template directory and with support for the "create shared" type flags that make a set GID repository directory. This also adds tests for much of the new functionality to the existing `repo/init.c` test suite. Also, this adds a bunch of new utility functions including a very general purpose `git_futils_mkdir` (with the ability to make paths and to chmod the paths post-creation) and a file tree copying function `git_futils_cp_r`. Also, this includes some new path functions that were useful to keep the code simple.
* Add git_repository_init_ext for power inittersRussell Belfer2012-08-221-2/+10
| | | | | | | The extended version of repository init adds support for many of the things that you can do with `git init` and sets up structures that will make it easier to extend further in the future.
* revparse: enhance parsing enginenulltoken2012-07-171-0/+7
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* Support reading attributes from indexRussell Belfer2012-05-031-0/+4
| | | | | | | | | | | | | | Depending on the operation, we need to consider gitattributes in both the work dir and the index. This adds a parameter to all of the gitattributes related functions that allows user control of attribute reading behavior (i.e. prefer workdir, prefer index, only use index). This fix also covers allowing us to check attributes (and hence do diff and status) on bare repositories. This was a somewhat larger change that I hoped because it had to change the cache key used for gitattributes files.
* Rename git_khash_str to git_strmap, etc.Russell Belfer2012-04-251-2/+2
| | | | | | 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`.
* Convert hashtable usage over to khashRussell Belfer2012-04-251-2/+2
| | | | | | | | | | | | | | | 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.
* Improve config handling for diff,submodules,attrsRussell Belfer2012-03-301-0/+5
| | | | | | | | This adds support for a bunch of core.* settings that affect diff and status, plus fixes up some incorrect implementations of those settings from before. Also, this cleans up the handling of config settings in the new submodules code and in the old attrs/ignore code.
* Added submodule API and use in statusRussell Belfer2012-03-281-0/+6
| | | | | | | | | | When processing status for a newly checked out repo, it is possible that there will be submodules that have not yet been initialized. The only way to distinguish these from untracked directories is to have some knowledge of submodules. This commit adds a new submodule API which, given a name or path, can determine if it appears to be a submodule and can give information about the submodule.
* config: Implement a proper cvar cacheVicent Martí2012-03-021-5/+60
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* filter: Properly cache filter settingsVicent Martí2012-03-011-0/+1
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* filter: Precache the filter config options on loadVicent Martí2012-03-011-1/+1
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* filter: Load attributes for fileVicent Martí2012-02-281-0/+5
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* Update Copyright headerschu2012-02-131-1/+1
| | | | Signed-off-by: schu <schu-github@schulog.org>
* Initial implementation of gitignore supportRussell Belfer2012-01-111-1/+1
| | | | | | | | Adds support for .gitignore files to git_status_foreach() and git_status_file(). This includes refactoring the gitattributes code to share logic where possible. The GIT_STATUS_IGNORED flag will now be passed in for files that are ignored (provided they are not already in the index or the head of repo).
* Add support for macros and cache flush API.Russell Belfer2011-12-291-1/+1
| | | | | | | | | | | | | | Add support for git attribute macro definitions. Also, add support for cache flush API to clear the attribute file content cache when needed. Additionally, improved the handling of global and system files, making common utility functions in fileops and converting config and attr to both use the common functions. Adds a bunch more tests and fixed some memory leaks. Note that adding macros required me to use refcounted attribute assignment definitions, which complicated, but probably improved memory usage.
* Add APIs for git attributesRussell Belfer2011-12-201-0/+2
| | | | | | | | | 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.
* repository: Change ownership semanticsVicent Marti2011-11-261-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* *: correct and codify various file permissionsBrodie Rao2011-10-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Rao2011-10-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* 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.
* Remove unused methodsVicent Marti2011-07-091-2/+1
| | | | | | | | | The direct-writes commit left some (slow) internals methods that were no longer needed. These have been removed. Also, the Reflog code was using the old `git_signature__write`, so it has been rewritten to use a normal buffer and the new `writebuf` signature writer. It's now slightly simpler and faster.
* odb: Direct writes are backVicent Marti2011-07-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | DIRECT WRITES ARE BACK AND FASTER THAN EVER. The streaming writer to the ODB was an overkill for the smaller objects like Commit and Tags; most of the streaming logic was taking too long. This commit makes Commits, Tags and Trees to be built-up in memory, and then written to disk in 2 pushes (header + data), instead of streaming everything. This is *always* faster, even for big files (since the git_filebuf class still does streaming writes when the memory cache overflows). This is also a gazillion lines of code smaller, because we don't have to precompute the final size of the object before starting the stream (this was kind of defeating the point of streaming, anyway). Blobs are still written with full streaming instead of loading them in memory, since this is still the fastest way. A new `git_buf` class has been added. It's missing some features, but it'll get there.
* index: Change the memory management for repo indexesVicent Marti2011-06-011-1/+0
| | | | | The `git_repository_index` call now returns a brand new index that must be manually free'd.
* Change `parse` methods to const bufferVicent Marti2011-04-021-1/+1
| | | | Signed-off-by: Vicent Marti <tanoku@gmail.com>
* I broke your bindingsVicent Marti2011-03-201-22/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hey. Apologies in advance -- I broke your bindings. This is a major commit that includes a long-overdue redesign of the whole object-database structure. This is expected to be the last major external API redesign of the library until the first non-alpha release. Please get your bindings up to date with these changes. They will be included in the next minor release. Sorry again! Major features include: - Real caching and refcounting on parsed objects - Real caching and refcounting on objects read from the ODB - Streaming writes & reads from the ODB - Single-method writes for all object types - The external API is now partially thread-safe The speed increases are significant in all aspects, specially when reading an object several times from the ODB (revwalking) and when writing big objects to the ODB. Here's a full changelog for the external API: blob.h ------ - Remove `git_blob_new` - Remove `git_blob_set_rawcontent` - Remove `git_blob_set_rawcontent_fromfile` - Rename `git_blob_writefile` -> `git_blob_create_fromfile` - Change `git_blob_create_fromfile`: The `path` argument is now relative to the repository's working dir - Add `git_blob_create_frombuffer` commit.h -------- - Remove `git_commit_new` - Remove `git_commit_add_parent` - Remove `git_commit_set_message` - Remove `git_commit_set_committer` - Remove `git_commit_set_author` - Remove `git_commit_set_tree` - Add `git_commit_create` - Add `git_commit_create_v` - Add `git_commit_create_o` - Add `git_commit_create_ov` tag.h ----- - Remove `git_tag_new` - Remove `git_tag_set_target` - Remove `git_tag_set_name` - Remove `git_tag_set_tagger` - Remove `git_tag_set_message` - Add `git_tag_create` - Add `git_tag_create_o` tree.h ------ - Change `git_tree_entry_2object`: New signature is `(git_object **object_out, git_repository *repo, git_tree_entry *entry)` - Remove `git_tree_new` - Remove `git_tree_add_entry` - Remove `git_tree_remove_entry_byindex` - Remove `git_tree_remove_entry_byname` - Remove `git_tree_clearentries` - Remove `git_tree_entry_set_id` - Remove `git_tree_entry_set_name` - Remove `git_tree_entry_set_attributes` object.h ------------ - Remove `git_object_new - Remove `git_object_write` - Change `git_object_close`: This method is now *mandatory*. Not closing an object causes a memory leak. odb.h ----- - Remove type `git_rawobj` - Remove `git_rawobj_close` - Rename `git_rawobj_hash` -> `git_odb_hash` - Change `git_odb_hash`: New signature is `(git_oid *id, const void *data, size_t len, git_otype type)` - Add type `git_odb_object` - Add `git_odb_object_close` - Change `git_odb_read`: New signature is `(git_odb_object **out, git_odb *db, const git_oid *id)` - Change `git_odb_read_header`: New signature is `(size_t *len_p, git_otype *type_p, git_odb *db, const git_oid *id)` - Remove `git_odb_write` - Add `git_odb_open_wstream` - Add `git_odb_open_rstream` odb_backend.h ------------- - Change type `git_odb_backend`: New internal signatures are as follows int (* read)(void **, size_t *, git_otype *, struct git_odb_backend *, const git_oid *) int (* read_header)(size_t *, git_otype *, struct git_odb_backend *, const git_oid *) int (* writestream)(struct git_odb_stream **, struct git_odb_backend *, size_t, git_otype) int (* readstream)( struct git_odb_stream **, struct git_odb_backend *, const git_oid *) - Add type `git_odb_stream` - Add enum `git_odb_streammode` Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Fix the retarded object interdependency systemVicent Marti2011-03-141-18/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's no longer retarded. All object interdependencies are stored as OIDs instead of actual objects. This should be hundreds of times faster, specially on big repositories. Heck, who knows, maye it doesn't even segfault -- wouldn't that be awesome? What has changed on the API? `git_commit_parent`, `git_commit_tree`, `git_tag_target` now return their values through a pointer-to-pointer, and have an error code. `git_commit_set_tree` and `git_tag_set_target` now return an error code and may fail. `git_repository_free__no_gc` has been deprecated because it's stupid. Since there are no longer any interdependencies between objects, we don't need internal reference counting, and GC never fails or double-free's pointers. `git_object_close` now does a very sane thing: marks an object as unused. Closed objects will be eventually free'd from the object cache based on LRU. Please use `git_object_close` from the garbage collector `destroy` method on your bindings. It's 100% safe. `git_repository_gc` is a new method that forces a garbage collector pass through the repo, to free as many LRU objects as possible. This is useful if we are running out of memory.
* Fix segmentation fault when freeing a repositoryVicent Marti2011-03-051-4/+12
| | | | | | | | Disable garbage collection of cross-references to prevent double-freeing. Internal reference management is now done with a separate method. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Don't use non-int bit fieldsVicent Marti2011-03-041-1/+1
| | | | | | They are not standard. MSVC complains about them. And that's not good. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Fix several issues with refcountingVicent Marti2011-03-031-2/+8
| | | | | | | - Added several missing reference increases - Add new destructor to the repository that does not GC the objects Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Implement reference counting for git_objectsVicent Marti2011-03-031-1/+10
| | | | | | | | All `git_object` instances looked up from the repository are reference counted. User is expected to use the new `git_object_close` when an object is no longer needed to force freeing it. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Refactored the opening and the initialization of a repository.nulltoken2011-03-031-0/+5
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* Refactor reference parsing codeVicent Marti2011-01-301-1/+2
| | | | | | | | | 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/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Split object methods from repository.cVicent Marti2011-01-031-1/+0
| | | | | | All the relevant git_object methods have been moved to object.c Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Change the library include fileVicent Marti2010-12-061-4/+4
| | | | | | | | | | | | Libgit2 is now officially include as #include "<git2.h>" or indidividual files may be included as #include <git2/index.h> Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Change git_repository initialization to use a pathVicent Marti2010-11-021-0/+9
| | | | | | | | | | | | The constructor to git_repository is now called 'git_repository_open(path)' and takes a path to a git repository instead of an existing ODB object. Unit tests have been updated accordingly and the two test repositories have been merged into one. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Fix internal memory management on the libraryVicent Marti2010-10-281-0/+3
| | | | | | | | | | | | | | | | | | | | String mememory is now managed in a much more sane manner. Fixes include: - git_person email and name is no longer limited to 64 characters - git_tree_entry filename is no longer limited to 255 characters - raw objects are properly opened & closed the minimum amount of times required for parsing - unit tests no longer leak - removed 5 other misc memory leaks as reported by Valgrind - tree writeback no longer segfaults on rare ocassions The git_person struct is no longer public. It is now managed by the library, and getter methods are in place to access its internal attributes. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Add support for in-memory objectsVicent Marti2010-09-201-3/+1
| | | | | | | | | | | All repository objects can now be created from scratch in memory using either the git_object_new() method, or the corresponding git_XXX_new() for each object. So far, only git_commits can be written back to disk once created in memory. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Add setter methods & write support for git_commitVicent Marti2010-09-201-0/+1
| | | | | | | | | | | All the required git_commit_set_XXX methods have been implemented; all the attributes of a commit object can now be modified in-memory. The new method git_object_write() automatically writes back the in-memory changes of any object to the repository. So far it only supports git_commit objects. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Implement internal methods to write on sourcesVicent Marti2010-09-191-1/+3
| | | | | | | | | | The new 'git__source_printf' does an overflow-safe printf on a source bfufer. The new 'git__source_write' does an overflow-safe byte write on a source buffer. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Give object structures more descriptive namesVicent Marti2010-09-191-15/+14
| | | | | | | | | | The 'git_obj' structure is now called 'git_rawobj', since it represents a raw object read from the ODB. The 'git_repository_object' structure is now called 'git_object', since it's the base object class for all objects. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Add generic methods for object writebackVicent Marti2010-09-181-3/+13
| | | | | | | | | | | | | | | | git_repository_object has now several internal methods to write back the object information in the repository. - git_repository__dbo_prepare_write() Prepares the DBO object to be modified - git_repository__dbo_write() Writes new bytes to the DBO object - git_repository__dbo_writeback() Writes back the changes to the repository Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Fix object handling in git_repositoryVicent Marti2010-08-121-3/+5
| | | | | | | All loaded objects through git_repository_lookup are properly parsed & free'd on failure. Signed-off-by: Vicent Marti <tanoku@gmail.com>
* Redesigned the walking/object lookup interfaceVicent Marti2010-08-121-0/+25
The old 'git_revpool' object has been removed and split into two distinct objects with separate functionality, in order to have separate methods for object management and object walking. * A new object 'git_repository' does the high-level management of a repository's objects (commits, trees, tags, etc) on top of a 'git_odb'. Eventually, it will also manage other repository attributes (e.g. tag resolution, references, etc). See: src/git/repository.h * A new external method 'git_repository_lookup(repo, oid, type)' has been added to the 'git_repository' API. All object lookups (git_XXX_lookup()) are now wrappers to this method, and duplicated code has been removed. The method does automatic type checking and returns a generic 'git_revpool_object' that can be cast to any specific object. See: src/git/repository.h * The external methods for object parsing of repository objects (git_XXX_parse()) have been removed. Loading objects from the repository is now managed through the 'lookup' functions. These objects are loaded with minimal information, and the relevant parsing is done automatically when the user requests any of the parsed attributes through accessor methods. An attribute has been added to 'git_repository' in order to force the parsing of all the repository objects immediately after lookup. See: src/git/commit.h See: src/git/tag.h See: src/git/tree.h * The previous walking functionality of the revpool is now found in 'git_revwalk', which does the actual revision walking on a repository; the attributes when walking through commits in a database have been decoupled from the actual commit objects. This increases performance when accessing commits during the walk and allows to have several 'git_revwalk' instances working at the same time on top of the same repository, without having to load commits in memory several times. See: src/git/revwalk.h * The old 'git_revpool_table' has been renamed to 'git_hashtable' and now works as a generic hashtable with support for any kind of object and custom hash functions. See: src/hashtable.h * All the relevant unit tests have been updated, renamed and grouped accordingly. Signed-off-by: Vicent Marti <tanoku@gmail.com>