src/fileops.h


Log

Author Commit Date CI Message
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 deafee7b 2012-03-14T17:36:15 Continue error conversion This converts blob.c, fileops.c, and all of the win32 files. Also, various minor cleanups throughout the code. Plus, in testing the win32 build, I cleaned up a bunch (although not all) of the warnings with the 64-bit build.
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.
Russell Belfer 74fa4bfa 2012-02-28T16:14:47 Update diff to use iterators This is a major reorganization of the diff code. This changes the diff functions to use the iterators for traversing the content. This allowed a lot of code to be simplified. Also, this moved the functions relating to outputting a diff into a new file (diff_output.c). This includes a number of other changes - adding utility functions, extending iterators, etc. plus more tests for the diff code. This also takes the example diff.c program much further in terms of emulating git-diff command line options.
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.
Russell Belfer b6c93aef 2012-02-21T14:46:24 Uniform iterators for trees, index, and workdir This create a new git_iterator type of object that provides a uniform interface for iterating over the index, an arbitrary tree, or the working directory of a repository. As part of this, git ignore support was extended to support push and pop of directory-based ignore files as the working directory is being traversed (so the array of ignores does not have to be recreated at each directory during traveral). There are a number of other small utility functions in buffer, path, vector, and fileops that are included in this patch that made the iterator implementation cleaner.
schu 5e0de328 2012-02-13T17:10:24 Update Copyright header Signed-off-by: schu <schu-github@schulog.org>
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).
Russell Belfer 6a67a812 2012-01-11T16:01:48 Allow ignores (and attribs) for nonexistent files This fixes issue 532 that attributes (and gitignores) could not be checked for files that don't exist. It should be possible to query such things regardless of the existence of the file.
Russell Belfer df743c7d 2012-01-09T15:37:19 Initial implementation of gitignore support 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).
Russell Belfer 73b51450 2011-12-28T23:28:50 Add support for macros and cache flush API. 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.
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.
schu bdbdefac 2011-11-21T13:06:07 fileops.h: remove git_futils_mv_atomic prototype 0c49ec2 replaced git_futils_mv_atomic with p_rename without removing its prototype. Signed-off-by: schu <schu-github@schulog.org>
Brodie Rao ce8cd006 2011-09-07T15:32:44 fileops/repository: create (most) directories with 0777 permissions 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.
Brodie Rao 33127043 2011-10-14T14:18:02 fileops/posix: replace usage of "int mode" with "mode_t mode" Note: Functions exported from fileops take const mode_t, while the underlying POSIX wrappers take mode_t.
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.
Carlos Martín Nieto c3da9f06 2011-07-21T22:55:20 Add git_futils_readbuffer_updated This extends the git_fuitls_readbuffer function to only read in if the file's modification date is later than the given one. Some code paths want to check a file's modification date in order to decide whether they should read it or not. If they do want to read it, another stat call is done by futils. This function combines these two operations so we avoid one stat call each time we read a new or updated file. The git_futils_readbuffer functions is now a wrapper around the new function. Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Vicent Marti 858dba58 2011-07-06T18:08:13 refs: Cleanup reference renaming `git_futils_rmdir_r`: rename, clean up. `git_reference_rename`: cleanup. Do not use 3x4096 buffers on the stack or things will get ugly very fast. We can reuse the same buffer.
nulltoken 1b938a58 2011-07-03T22:27:05 Remove duplicated recursive directory removal related code
nulltoken 1ee5fd90 2011-07-03T14:42:32 Fix windows specific issues - msvc compilation warnings - not released file handle that prevents file removal
schu 42b3a460 2011-06-09T19:51:33 fileops: add git_futils_rmdir_recurs() git_futils_rmdir_recurs() shall remove the given directory and all subdirectories. This happens only if the directories are empty. Signed-off-by: schu <schu-github@schulog.org>
schu e190da78 2011-06-09T18:11:11 fileops: add convenience function is_dot_or_dotdot() Signed-off-by: schu <schu-github@schulog.org>
Vicent Marti eec3fe39 2011-07-05T01:11:33 fileutils: Finish dropping the old `prettify_path`
Vicent Marti 5ad739e8 2011-07-04T20:05:11 fileops: Drop `git_fileops_prettify_path` The old `git_fileops_prettify_path` has been replaced with `git_path_prettify`. This is a much simpler method that uses the OS's `realpath` call to obtain the full path for directories and resolve symlinks. The `realpath` syscall is the original POSIX call in Unix system and an emulated version under Windows using the Windows API.
Vicent Marti f79026b4 2011-07-04T11:43:34 fileops: Cleanup Cleaned up the structure of the whole OS-abstraction layer. fileops.c now contains a set of utility methods for file management used by the library. These are abstractions on top of the original POSIX calls. There's a new file called `posix.c` that contains emulations/reimplementations of all the POSIX calls the library uses. These are prefixed with `p_`. There's a specific posix file for each platform (win32 and unix). All the path-related methods have been moved from `utils.c` to `path.c` and have their own prefix.
Kirill A. Shutemov 932d1baf 2011-06-30T19:52:34 cleanup: remove trailing spaces Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
nulltoken 6ac91dfe 2011-06-29T14:06:18 Hide ".git" directory on Windows upon creation of a non bare repository Directory which name starts with a dot are hidden on Linux platforms. This patch makes libgit2 behaves similarly on Windows.
Vicent Martí ef9a6f4c 2011-06-15T13:47:41 Merge pull request #261 from Romain-Geissler/discovery-path-v2 Fix: GIT_PATH_PATH_SEPARATOR is now a semi-colon under Windows.
Romain Geissler 0657e46d 2011-06-15T12:36:08 Fix: GIT_PATH_PATH_SEPARATOR is now a semi-colon under Windows. GIT_PATH_LIST_SEPARATOR and GIT_PATH_MAX are made public so that it's can be used by a client.
Sebastian Schuberth e6480970 2011-06-10T14:00:54 Add missing function declarations to avoid MSVC compiler warnings The better solution would probably be to turn the gitfo_lstat / gitfo_readlink macros into real functions that wrap either lstat or gitfo_lstat__w32 (and readlink or gitfo_readlink__w32). However, that would introduce an indirection unless inlined. For now, this is the less intrusive change.
Vicent Marti ae496955 2011-06-08T17:03:41 windows: Fix Symlink issues Handle Symlinks if they can be handled in Win32. This is not even compiled. Needs review. The lstat implementation is modified from core Git. The readlink implementation is modified from PHP.
Jakob Pfender 27a1b382 2011-06-07T14:15:55 Export gitfo_shallow_exists
Jakob Pfender 1869b31e 2011-05-25T16:11:57 index/fileops: Correctly process symbolic links gitfo_exists() used to error out if the given file was a symbolic link, due to access() returning an error code. This is not expected behaviour, as gitfo_exists() should only check whether the file itself exists, not its link target if it is a symbolic link. Fix this by calling gitfo_lstat() instead, which is just a wrapper for lstat(). Also fix the same error in index_init_entry().
Romain Geissler ff9a4c13 2011-06-06T17:14:30 Tree: Added a function that returns the type of a tree entry.
Romain Geissler f2e6b877 2011-06-03T23:44:38 Repository: Added some util functions that we'll need to discover repository path. retrieve_device returns the file device for a given path (so that we can detect device change while walking through parent directories). abspath returns a canonicalized path, symbolic link free. retrieive_ceiling_directories_offset returns the biggest path offset that path match in the ceiling directory list (so that we can stop at ceiling directories).
Romain Geissler 1549cba9 2011-06-03T21:18:24 Filebuf: Fixed a TODO in filebuf (real lock in lock_file) Added gitfo_creat_locked and gitfo_creat_locked_force
Romain Geissler bc648491 2011-06-03T21:09:14 Fileops: Added gitfo_isfile. Conflicts: src/fileops.c
unknown 26a98ec8 2011-06-03T20:47:56 Fileops: Added a fourth argument to the path prettifying functions to use an alternate basepath. Fixed a Windows TO-DO in the prettifying functions.
unknown bb88da7f 2011-06-03T19:38:46 Sha1Lookup: Fixed two MSVC compilation warnings.
Romain Geissler 04fdc10d 2011-06-03T19:26:45 Fileops:retrieve_path_root_offset is now named gitfo_retrieve_path_root_offset (like other public functions). Added platform specific directory separator definition.
Vicent Marti d3ca89fe 2011-05-23T21:03:01 fileops: Cleanup
Vicent Marti f6f72d7e 2011-03-23T18:44:53 Improve the ODB writing backend Temporary files when doing streaming writes are now stored inside the Objects folder, to prevent issues when moving files between disks/partitions. Add support for block writes to the ODB again (for those backends that cannot implement streaming).
nulltoken c90292ce 2011-03-18T16:56:43 Change gitfo_prettify_dir_path() and gitfo_prettify_file_path() behavior Those functions now return prettified rooted path.
nulltoken 6279abda 2011-03-17T06:56:58 Make gitfo_prettify_dir_path() and gitfo_prettify_file_path() no longer externalized
nulltoken 677a3c07 2011-03-15T22:07:01 Add failing test for issue 84 see https://github.com/libgit2/libgit2/issues#issue/84
Vicent Marti 72a3fe42 2011-03-18T19:38:49 I broke your bindings 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>
Vicent Marti 55ffebe3 2011-03-05T14:34:32 Fix creation of deeply-rooted references Use a new `gitfo_creat_force` that will create the full path to a file before creating it. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 19a30a3f 2011-03-03T19:53:17 Add new move function, `gitfo_mv_force` Forces a move by creating the folder for the destination file, if it doesn't exist. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti ccef1c9d 2011-02-27T22:09:36 Move the path comparison method to fileops.c Signed-off-by: Vicent Marti <tanoku@gmail.com>
nulltoken 2e6fd09c 2011-01-25T21:52:24 Fixed naming convention related issue.
nulltoken 618818dc 2011-01-23T16:15:11 Added git_prettify_file_path().
Vicent Marti b5e567b9 2011-01-19T17:15:02 Merge branch 'dir-path-prettifying' of https://github.com/nulltoken/libgit2
nulltoken 170d3f2f 2011-01-11T20:12:53 Added git_prettify_dir_path(). Clean up a provided absolute or relative directory path. This prettification relies on basic operations such as coalescing multiple forward slashes into a single slash, removing '.' and './' current directory segments, and removing parent directory whenever '..' is encountered. If not empty, the returned path ends with a forward slash. For instance, this will turn "d1/s1///s2/..//../s3" into "d1/s3/". This only performs a string based analysis of the path. No checks are done to make sure the path actually makes sense from the file system perspective.
Alex Budovski f0bde7fa 2011-01-11T16:07:45 Revised platform types to use 'best supported' size. This will allow graceful migration to 64 bit file sizes and timestamps should git's binary interface be extended to allow this.
Vicent Marti e035685f 2010-12-23T00:44:41 Revert "Properly export all external symbols in Win32" It is not a good idea to export these internal symbols now that they are not required to run the unit tests. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 2a18a792 2010-12-22T22:43:39 Properly export all external symbols in Win32 Some external functions were not being exported because they were using the 'extern' keyword instead of the generic GIT_EXTERN() macro. Signed-off-by: Vicent Marti <tanoku@gmail.com>
nulltoken 1a5204a7 2010-12-17T10:08:01 Added gitfo_mkdir_recurs() placeholder.
Vicent Marti 6fd195d7 2010-11-02T18:42:42 Change git_repository initialization to use a path 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>
Ramsay Jones 3cc60635 2010-03-05T19:06:28 Add some more (macro) file operation wrappers Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 1e5dd572 2010-02-12T16:50:33 Fix some coding style issues Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 73dcf287 2010-01-12T16:39:25 msvc: Fix some "unreferenced formal parameter" warnings Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 1a7bae4d 2010-01-11T22:51:42 Fix some "unused parameter" warnings with -Wextra Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones 90d4d2f0 2010-01-11T19:27:50 win32: Use an 64-bit file offset type Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones cfe3a027 2010-01-15T22:07:44 Use a 64 bit off_t throughout the library and tests on POSIX Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Julio Espinoza-Sokal 209849a4 2009-06-15T21:27:49 Use GIT_INLINE macro instead of keyword inline. No need to define inline as __inline because libgit2 code should be using GIT_INLINE instead. Signed-off-by: Julio Espinoza-Sokal <julioes@gmail.com> Signed-off-by: Andreas Ericsson <ae@op5.se>
Ramsay Jones c79dded3 2009-06-14T22:13:35 win32: Add an fsync() implementation for windows For information on FlushFileBuffers(), see the msdn document at msdn.microsoft.com/en-us/library/aa364439(VS.85).aspx Note that Windows 2000 is shown as the minimum windows version to support FlushFileBuffers(), so if we wish to support Win9X and NT4, we will need to add code to dynamically check if kernel32.dll contains the function. The only error return mentioned in the msdn document is ERROR_INVALID_HANDLE, which is returned if the file/device (eg console) is not buffered. The fsync(2) manpage says that EINVAL is returned in errno, if "fd is bound to a special file which does not support synchronization". Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Ramsay Jones ca481fc4 2009-06-04T16:46:54 Add the git_move_file() function Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Andreas Ericsson <ae@op5.se>
Ramsay Jones 4319860c 2009-06-04T16:45:59 win32: Add some file operation stubs and wrapper functions Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Andreas Ericsson <ae@op5.se>
Ramsay Jones 498bc090 2009-03-23T18:47:18 t0020-dirent.c: allow test to be run standalone This test assumed that it was invoked in an empty directory, which is true when run from the Makefile, and so would fail if run standalone. In order to allow the test to work when run from any directory, create a sub directory "dir-walk" and chdir() into this directory while running the tests. Also, add some additional tests. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 502acd16 2009-03-23T18:37:51 win32: Add missing include for mkdir() and rmdir() Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 0234c186 2009-03-20T19:52:50 win32: Add <dirent.h> directory reading routines Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 79ca2edc 2009-03-20T19:51:48 win32: Add routines to abstract memory-mapped file functions In particular, the git__mmap() and git__munmap() routines provide the interface to platform specific memory-mapped file facilities. We provide implementations for unix and win32, which can be found in their own sub-directories. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 7a6cf815 2009-03-16T17:08:45 win32: Open or create files in binary mode On windows, unless we use the O_BINARY flag in the open() call, the file I/O routines will perform line ending conversion (\r\n => \n on input, \n => \r\n on output). In addition to the performance penalty, most files in the object database are binary and will, therefore, become corrupted by this conversion. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 840fb8b7 2009-02-18T18:53:48 win32: fixup some headers to improve win32 compilation Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones cfe96f31 2009-01-12T19:44:51 Add some (macro) file operation wrappers Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 20e7f426 2009-01-03T00:36:10 Add a simple mmap wrapper for cross-platform mmap usage Win32 has a variant of mmap that is harder to use than POSIX, but to run natively and efficiently on Win32 we need some form of it. gitfo_map_ro() provides a basic mmap function for use in locations where we need read-only random data access to large ranges of a file, such as a pack-*.idx. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 7350e633 2008-12-31T16:07:38 Define gitfo_exists to determine file presence When scanning the pack directory we need to see if the path name is present for ".idx" when we discover a ".pack" file. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 5690f02e 2008-12-31T15:35:36 Rewrite git_foreach_dirent into gitfo_dirent Our fileops API is currently private. We aren't planning on supplying a cross-platform file API to applications that link to us. If we did, we'd probably whole-sale publish fileops, not just the dirent code. By moving it to be private we can also change the call signature to permit the buffer to be passed down through the call chain. This is very helpful when we are doing a recursive scan as we can reuse just one buffer in all stack frames, reducing the impact the recursion has on the stack frames in the data cache. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce 7dd8a9f7 2008-12-30T23:26:38 Set GIT_EOSERR when the OS errno should be consulted This error code indicates the OS error code has a better value describing the last error, as it is likely a network or local file IO problem identified by a C library function call. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 3d3552e8 2008-12-18T22:58:10 Implement git_odb__read_loose() Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Ramsay Jones 75d58430 2008-12-18T22:56:14 Add a file reading routine along with an io buffer type In particular, the gitfo_read_file() routine can be used to slurp the complete file contents into an gitfo_buf structure. The buffer content will be allocated by malloc() and may be released by the gitfo_free_buf() routine. The io buffer type can be initialised on the stack with the GITFO_BUF_INIT macro. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson ea790f33 2008-11-29T15:34:20 Add a dirent walker to the fileops API Since at least MS have something like GetFirstDirEnt() and GetNextDirEnt() (presumably with superior performance), we can let MS hackers add support for a dirent walker using that API instead, while we stick with the posix-style readdir() calls. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson 4188d28f 2008-11-29T15:28:12 Add an io caching layer to the gitfo api The idea is taken from Junio's work in read-cache.c, where it's used for writing out the index without tap-dancing on the poor harddrive. Since it's almost certainly useful for cached writing of packfiles too, we turn it into a generic API, making it perfectly simple to reuse it later. gitfo_write_cached() has the same contract as gitfo_write(), it returns GIT_SUCCESS if all bytes are successfully written (or were at least buffered for later writing), and <0 if an error occurs during buffer writing. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Andreas Ericsson ec250c6e 2008-11-23T22:37:55 Remove config.h and make fileops an internal API Since it doesn't make sense to make the disk access stuff portable *AND* public (that's a job for each application imo), we can take a shortcut and just support unixy stuff for now and get away with coding most of it as macros. Since we go with an internal API for starters and only provide higher-level API's to the libgit users, we'll be ok with this approach. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>