kmx git

Commit	Date	Message
266f26ed	2020-04-05T14:35:23	checkout: use GIT_ASSERT
74520b91	2020-06-13T19:38:11	Merge pull request #5552 from libgit2/pks/small-fixes Random code cleanups and fixes
c6184f0c	2020-06-08T21:07:36	tree-wide: do not compile deprecated functions with hard deprecation When compiling libgit2 with -DDEPRECATE_HARD, we add a preprocessor definition `GIT_DEPRECATE_HARD` which causes the "git2/deprecated.h" header to be empty. As a result, no function declarations are made available to callers, but the implementations are still available to link against. This has the problem that function declarations also aren't visible to the implementations, meaning that the symbol's visibility will not be set up correctly. As a result, the resulting library may not expose those deprecated symbols at all on some platforms and thus cause linking errors. Fix the issue by conditionally compiling deprecated functions, only. While it becomes impossible to link against such a library in case one uses deprecated functions, distributors of libgit2 aren't expected to pass -DDEPRECATE_HARD anyway. Instead, users of libgit2 should manually define GIT_DEPRECATE_HARD to hide deprecated functions. Using "real" hard deprecation still makes sense in the context of CI to test we don't use deprecated symbols ourselves and in case a dependant uses libgit2 in a vendored way and knows it won't ever use any of the deprecated symbols anyway.
a6c9e0b3	2020-06-08T12:40:47	tree-wide: mark local functions as static We've accumulated quite some functions which are never used outside of their respective code unit, but which are lacking the `static` keyword. Add it to reduce their linkage scope and allow the compiler to optimize better.
46637b5e	2020-06-08T14:47:01	checkout: remove unused code for deferred removals With commit 05f690122 (checkout: remove blocking dir when FORCEd, 2015-03-31), the last case was removde that actually queued a deferred removal. This is now more than five years in the past and nobody complained, so we can rest quite assured that the deferred removal is not really needed at all. Let's remove all related code to simplify the already complicated checkout logic.
0f35efeb	2020-05-23T10:15:51	git_pool_init: handle failure cases Propagate failures caused by pool initialization errors.
3f201f75	2020-05-16T13:48:04	checkout: fix file being treated as unmodified due to racy index When trying to determine whether a file changed, we try to avoid heavy operations by fist taking a look at the index, seeing whether the index entry is modified already. This doesn't seem to cut it, though, as we currently have the racy checkout::index::can_disable_pathspec_match test case: sometimes the files get restored to their original contents, sometimes they aren't. The issue is caused by a racy index [1]: in case we modify a file, add it to the index and then modify it again in-place without changing its file, then we may end up with a modified file that has the same stat(3P) info as we've currently got it in its corresponding index entry. The mitigation for this is to treat files with the same mtime as the index are treated as racily modified. We already have this logic in place for the index, but not when doing a checkout. Fix the issue by only consulting the index entry in case it has an older mtime as the index. Previously, the following script reliably had at least 20 failures, while now there is no failure to be observed anymore: ```bash j=0 for i in $(seq 100) do if ! ./libgit2_clar -scheckout::index::can_disable_pathspec_match >/dev/null then j=$(($j + 1)) fi done echo "Failures: $j" ``` [1]: https://git-scm.com/docs/racy-git
d62e44cb	2019-06-03T18:35:08	checkout: Fix removing untracked files by path in subdirectories The checkout code didn't iterate into a subdir if it didn't match the pathspec, but since the pathspec might match files in the subdir we should recurse into it (In contrast to gitignore handling). Fixes #5089
63de2128	2020-02-02T20:20:19	checkout: filter pathspecs for _all_ checkout types We were previously applying the pathspec filter for the baseline iterator during checkout, as well as the target tree. This was an oversight; in fact, we should apply the pathspec filter to _all_ checkout targets, not just trees. Add a helper function to set the iterator pathspecs from the given checkout pathspecs, and call it everywhere.
e4034dfa	2019-12-03T19:24:59	path: protect NTFS everywhere Enable core.protectNTFS by default everywhere and in every codepath, not just on checkout.
64c612cc	2019-09-18T15:25:02	Protect against 8.3 "short name" attacks also on Linux/macOS The Windows Subsystem for Linux (WSL) is getting increasingly popular, in particular because it makes it _so_ easy to run Linux software on Windows' files, via the auto-mounted Windows drives (`C:\` is mapped to `/mnt/c/`, no need to set that up manually). Unfortunately, files/directories on the Windows drives can be accessed via their _short names_, if that feature is enabled (which it is on the `C:` drive by default). Which means that we have to safeguard even our Linux users against the short name attacks. Further, while the default options of CIFS/SMB-mounts seem to disallow accessing files on network shares via their short names on Linux/macOS, it _is_ possible to do so with the right options. So let's just safe-guard against short name attacks _everywhere_. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
cd5e33fb	2019-11-06T11:08:23	global: DRY includes of assert.h
6be5ac23	2019-07-11T15:30:51	checkout: postpone creation of symlinks to the end On most platforms it's fine to create symlinks to nonexisting files. Not so on Windows, where the type of a symlink (file or directory) needs to be set at creation time. So depending on whether the target file exists or not, we may end up with different symlink types. This creates a problem when performing checkouts, where we simply iterate over all blobs that need to be updated without treating symlinks any special. If the target file of the symlink is going to be checked out after the symlink itself, then the symlink will be created as directory symlink and not as file symlink. Fix the issue by iterating over blobs twice: once to perform postponed deletions and updates to non-symlink blobs, and once to perform updates to symlink blobs.
658022c4	2019-07-18T13:53:41	configuration: cvar -> configmap `cvar` is an unhelpful name. Refactor its usage to `configmap` for more clarity.
0b5ba0d7	2019-06-06T16:36:23	Rename opt init functions to `options_init` In libgit2 nomenclature, when we need to verb a direct object, we name a function `git_directobject_verb`. Thus, if we need to init an options structure named `git_foo_options`, then the name of the function that does that should be `git_foo_options_init`. The previous names of `git_foo_init_options` is close - it _sounds_ as if it's initializing the options of a `foo`, but in fact `git_foo_options` is its own noun that should be respected. Deprecate the old names; they'll now call directly to the new ones.
351eeff3	2019-01-23T10:42:46	maps: use uniform lifecycle management functions Currently, the lifecycle functions for maps (allocation, deallocation, resize) are not named in a uniform way and do not have a uniform function signature. Rename the functions to fix that, and stick to libgit2's naming scheme of saying `git_foo_new`. This results in the following new interface for allocation: - `int git_<t>map_new(git_<t>map *out)` to allocate a new map, returning an error code if we ran out of memory - `void git_<t>map_free(git_<t>map map)` to free a map - `void git_<t>map_clear(git<t>map *map)` to remove all entries from a map This commit also fixes all existing callers.
f673e232	2018-12-27T13:47:34	git_error: use new names in internal APIs and usage Move to the `git_error` name in the internal API for error-related functions.
168fe39b	2018-11-28T14:26:57	object_type: use new enumeration names Use the new object_type enumeration names within the codebase.
5e26391a	2018-06-18T18:28:08	checkout: FORCE doesn't halt on dirty index If the index is dirty, allow `GIT_CHECKOUT_FORCE` to obliterate unsaved changes. This is in keeping with its name and description.
b242cdbf	2017-11-17T00:19:07	index: commit the changes to the index properly Now that the index has a "dirty" state, where it has changes that have not yet been committed or rolled back, our tests need to be adapted to actually commit or rollback the changes instead of assuming that the index can be operated on in its indeterminate state.
88b30f51	2017-11-12T20:50:00	checkout: always set the index in checkout data Always set the `index` in the `checkout_data`, even in the case that we are not reloading the index. Other functionality in checkout examines the index (for example: determining whether the workdir is modified) and we need it even in the (uncommon) case that we are not reloading.
ecf4f33a	2018-02-08T11:14:48	Convert usage of `git_buf_free` to new `git_buf_dispose`
a7168b47	2018-05-22T16:13:47	path: reject .gitmodules as a symlink Any part of the library which asks the question can pass in the mode to have it checked against `.gitmodules` being a symlink. This is particularly relevant for adding entries to the index from the worktree and for checking out files.
c214ba19	2018-02-20T00:35:27	checkout: respect core.filemode when comparing filemodes Fixes #4504
d7fea1e1	2018-02-18T16:10:33	checkout: take mode into account when comparing index to baseline When checking out a file, we determine whether the baseline (what we expect to be in the working directory) actually matches the contents of the working directory. This is safe behavior to prevent us from overwriting changes in the working directory. We look at the index to optimize this test: if we know that the index matches the working directory, then we can simply look at the index data compared to the baseline. We have historically compared the baseline to the index entry by oid. However, we must also compare the mode of the two items to ensure that they are identical. Otherwise, we will refuse to update the working directory for a mode change.
2a3e0635	2017-12-04T16:56:07	Do not attempt to check out submodule as blob when merging a submodule modify/deltete conflict
128c5ca9	2017-10-07T12:23:33	checkout: do not test file mode on Windows On Windows, we do not support file mode changes, so do not test for type changes between the disk and tree being checked out. We could have false positives since the on-disk file can only have an (effective) mode of 0100644 since NTFS does not support executable files. If the tree being checked out did have an executable file, we would erroneously decide that the file on disk had been changed.
752b7c79	2016-06-15T02:00:35	checkout: treat files as modified if mode differs When performing a forced checkout, treat files as modified when the workdir or the index is identical except for the mode. This ensures that force checkout will update the mode to the target. (Apply this check for regular files only, if one of the items was a file and the other was another type of item then this would be a typechange and handled independently.)
0c7f49dd	2017-06-30T13:39:01	Make sure to always include "common.h" first Next to including several files, our "common.h" header also declares various macros which are then used throughout the project. As such, we have to make sure to always include this file first in all implementation files. Otherwise, we might encounter problems or even silent behavioural differences due to macros or defines not being defined as they should be. So in fact, our header and implementation files should make sure to always include "common.h" first. This commit does so by establishing a common include pattern. Header files inside of "src" will now always include "common.h" as its first other file, separated by a newline from all the other includes to make it stand out as special. There are two cases for the implementation files. If they do have a matching header file, they will always include this one first, leading to "common.h" being transitively included as first file. If they do not have a matching header file, they instead include "common.h" as first file themselves. This fixes the outlined problems and will become our standard practice for header and source files inside of the "src/" from now on.
83989d70	2017-06-08T22:23:53	checkout: cope with untracked files in directory deletion When deleting a directory during checkout, do not simply delete the directory, since there may be untracked files. Instead, go into the iterator and examine each file. In the original code (the code with the faulty assumption), we look to see if there's an index entry beneath the directory that we want to remove. Eg, it looks to see if we have a workdir entry foo and an index entry foo/bar.txt. If this is not the case, then the working directory must have precious files in that directory. This part is okay. The part that's not okay is if there is an index entry foo/bar.txt. It just blows away the whole damned directory. That's not cool. Instead, by simply pushing the directory itself onto the stack and iterating each entry, we will deal with the files one by one - whether they're in the index (and can be force removed) or not (and are precious). The original code was a bad optimization, assuming that we didn't need to git_iterator_advance_into if there was any index entry in the folder. That's wrong - we could have optimized this iff all folder entries are in the index. Instead, we need to simply dig into the directory and analyze its entries.
77c8ee74	2017-03-20T08:59:30	checkout: fix double-free of checkout_data's mkdir_map We currently call `git_strmap_free` on `checkout_data.mkdir_map` in the `checkout_data_clear` function. The only thing protecting us from a double-free is that the `git_strmap_free` function is in fact not a function, but a macro that also sets the map to NULL. Remove the second call to `git_strmap_free` and explicitly set the map member to NULL.
13c3bc9a	2017-01-27T14:32:23	strmap: remove GIT__USE_STRMAP macro
cb76eed5	2017-01-14T17:41:49	Merge pull request #4054 from jfultz/jfultz/fix_GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH Fix handling of GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH flag.
5f959dca	2016-12-29T19:26:50	Fix handling of GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH flag. git_checkout_tree() sets up its working directory iterator to respect the pathlist if GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH is present, which is great. What's not so great is that this iterator is then used side-by-side with an iterator created by git_checkout_iterator(), which did not set up its pathlist appropriately (although the iterator mirrors all other iterator options). This could cause git_checkout_tree() to delete working tree files which were not specified in the pathlist when GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH was used, as the unsynchronized iterators causes git_checkout_tree() to think that files have been deleted between the two trees. Oops. And added a test which fails without this fix (specifically, the final check for "testrepo/README" to still be present fails).
909d5494	2016-12-29T12:25:15	giterr_set: consistent error messages Error messages should be sentence fragments, and therefore: 1. Should not begin with a capital letter, 2. Should not conclude with punctuation, and 3. Should not end a sentence and begin a new one
90a934a5	2016-11-14T10:06:17	checkout: pass string instead of git_buf to `giterr_set`
955c99c2	2016-09-14T10:28:24	checkout: don't try to calculate oid for directories When trying to determine if we can safely overwrite an existing workdir item, we may need to calculate the oid for the workdir item to determine if its identical to the old side (and eligible for removal). We previously did this regardless of the type of entry in the workdir; if it was a directory, we would open(2) it and then try to read(2). The read(2) of a directory fails on many platforms, so we would treat it as if it were unmodified and continue to perform the checkout. On FreeBSD, you _can_ read(2) a directory, so this pattern failed. We would calculate an oid from the data read and determine that the directory was modified and would therefore generate a checkout conflict. This reliance on read(2) is silly (and was most likely accidentally giving us the behavior we wanted), we should be explicit about the directory test.
88cfe614	2016-08-24T01:20:39	git_checkout_tree options fix According to the reference the git_checkout_tree and git_checkout_head functions should accept NULL in the opts field This was broken since the opts field was dereferenced and thus lead to a crash.
20302aa4	2016-06-25T23:33:05	Merge pull request #3223 from ethomson/apply Reading patch files
bb0bd71a	2016-06-15T15:47:28	checkout: use empty baseline when no index When no index file exists and a baseline is not explicitly provided, use an empty baseline instead of trying to load `HEAD`.
9be638ec	2016-04-19T15:12:18	git_diff_generated: abstract generated diffs
afab1fff	2016-02-16T21:02:41	checkout: handle dirty submodules correctly Don't generate conflicts when checking out a modified submodule and the submodule is dirty or modified in the workdir.
7b24c4fd	2016-05-02T15:47:54	checkout: set ignorecase=0 when config lookup fails When `git_repository__cvar` fails we may end up with a `ignorecase` value of `-1`. As we subsequently check if `ignorecase` is non-zero, we may end up reporting that data should be removed when in fact it should not. Err on the safer side and set `ignorecase = 0` when `git_repository__cvar` fails.
0a2e1032	2016-03-17T15:19:45	iterator: drop `advance_into_or_over` Now that iterators do not return `GIT_ENOTFOUND` when advancing into an empty directory, we do not need a special `advance_into_or_over` function.
0e0589fc	2016-03-10T00:04:26	iterator: combine fs+workdir iterators more completely Drop some of the layers of indirection between the workdir and the filesystem iterators. This makes the code a little bit easier to follow, and reduces the number of unnecessary allocations a bit as well. (Prior to this, when we filter entries, we would allocate them, filter them and then free them; now we do the filtering before allocation.) Also, rename `git_iterator_advance_over_with_status` to just `git_iterator_advance_over`. Mostly because it's a fucking long-ass function name otherwise.
702b23d7	2016-03-11T11:27:58	checkout: provide internal func to compute target path Many code paths in checkout need the final, full on-disk path of the file they're writing. (No surprise). However, they all munge the `data->path` buffer themselves to get there. Provide a nice helper method for them. Plus, drop the use `git_iterator_current_workdir_path` which does the same thing but different. Checkout is the only caller of this silly function, which lets us remove it.
684b35c4	2016-02-25T15:11:14	iterator: disambiguate reset and reset_range Disambiguate the reset and reset_range functions. Now reset_range with a NULL path will clear the start or end; reset will leave the existing start and end unchanged.
594a5d12	2016-02-18T12:28:06	Merge pull request #3619 from ethomson/win32_forbidden win32: allow us to read indexes with forbidden paths on win32
318b825e	2016-02-16T17:11:46	index: allow read of index w/ illegal entries Allow `git_index_read` to handle reading existing indexes with illegal entries. Allow the low-level `git_index_add` to add properly formed `git_index_entry`s even if they contain paths that would be illegal for the current filesystem (eg, `AUX`). Continue to disallow `git_index_add_bypath` from adding entries that are illegal universally illegal (eg, `.git`, `foo/../bar`).
3679ebae	2016-02-11T23:37:52	Horrible fix for #3173.
e2625457	2016-02-09T11:07:50	checkout: fix resource leak
25e84f95	2015-11-23T15:49:54	checkout: only consider nsecs when built that way When examining the working directory and determining whether it's up-to-date, only consider the nanoseconds in the index entry when built with `GIT_USE_NSEC`. This prevents us from believing that the working directory is always dirty when the index was originally written with a git client that uinderstands nsecs (like git 2.x).
1e5e02b4	2015-10-27T17:26:04	pool: Simplify implementation
6c014bcc	2015-09-29T12:18:17	diff: don't feed large files to xdiff
ac2fba0e	2015-09-16T15:07:27	git_futils_mkdir_*: make a relative-to-base mkdir Untangle git_futils_mkdir from git_futils_mkdir_ext - the latter assumes that we own everything beneath the base, as if it were being called with a base of the repository or working directory, and is tailored towards checkout and ensuring that there is no bogosity beneath the base that must be cleaned up. This is (at best) slow and (at worst) unsafe in the larger context of a filesystem where we do not own things and cannot do things like unlink symlinks that are in our way.
eea7c850	2015-09-16T05:44:27	checkout: overwrite files with differing modes When a file exists on disk and we're checking out a file that differs in executableness, remove the old file. This allows us to recreate the new file with p_open, which will take the new mode into account and handle setting the umask properly. Remove any notion of chmod'ing existing files, since it is now handled by the aforementioned removal and was incorrect, as it did not take umask into account.
7b73739f	2015-08-30T18:56:39	checkout: use pathlist-based iterators
ed1c6446	2015-07-28T11:41:27	iterator: use an options struct instead of args
768f8be3	2015-06-30T19:00:41	Fix #3094 - improve use of portable size_t/ssize_t format specifiers. The header src/cc-compat.h defines portable format specifiers PRIuZ, PRIdZ, and PRIxZ. The original report highlighted the need to use these specifiers in examples/network/fetch.c. For this commit, I checked all C source and header files not in deps/ and transitioned to the appropriate format specifier where appropriate.
c2418f46	2015-06-25T12:48:44	Rename FALLBACK to UNSPECIFIED Fallback describes the mechanism, while unspecified explains what the user is thinking.
c6f489c9	2015-05-04T17:29:12	submodule: add an ignore option to status This lets us specify in the status call which ignore rules we want to use (optionally falling back to whatever the submodule has in its configuration). This removes one of the reasons for having `_set_ignore()` set the value in-memory. We re-use the `IGNORE_RESET` value for this as it is no longer relevant but has a similar purpose to `IGNORE_FALLBACK`. Similarly, we remove `IGNORE_DEFAULT` which does not have use outside of initializers and move that to fall back to the configuration as well.
64bbd47a	2015-05-04T17:09:21	submodule: don't let status change an existing instance As submodules are becomes more like values, we should not let a status check to update its properties. Instead of taking a submodule, have status take a repo and submodule name.
dfda2f68	2015-04-27T19:27:29	submodule: remove the per-repo cache Having this cache and giving them out goes against our multithreading guarantees and it makes it impossible to use submodules in a multi-threaded environment, as any thread can ask for a refresh which may reallocate some string in the submodule struct which we've accessed in a different one via a getter. This makes the submodules behave more like remotes, where each object is created upon request and not shared except explicitly by the user. This means that some tests won't pass yet, as they assume they can affect the submodule objects in the cache and that will affect later operations.
96dd171e	2015-06-19T08:32:26	diff: preserve original mode in the index When updating the index during a diff, preserve the original mode, which prevents us from dropping the mode to what we have interpreted as on our system (eg, what the working directory claims it to be, which may be a lie on some systems.)
892abf93	2015-06-16T17:23:12	checkout: allow workdir to contain checkout target When checking out some file 'foo' that has been modified in the working directory, allow the checkout to proceed (do not conflict) if 'foo' is identical to the target of the checkout.
885b94aa	2015-05-28T15:26:13	Rename GIT_EMERGECONFLICT to GIT_ECONFLICT We do not error on "merge conflicts"; on the contrary, merge conflicts are a normal part of merging. We only error on "checkout conflicts", where a change exists in the index or the working directory that would otherwise be overwritten by performing the checkout. This may happen during merge (after the production of the new index that we're going to checkout) but it could happen during any checkout.
73dce1f6	2015-03-16T18:57:57	checkout: allow baseline to be specified as index Allow the baseline to be specified as an index, so that users need not write their index to a tree just to checkout with that as the baseline.
4beab1f8	2015-03-31T16:29:35	checkout: break case-changes into delete/add When checking out with a case-insensitive working directory, we want to change the case of items in the working directory to reflect changes that occured in the checkout target. Diff now has an option to break case-changing renames into delete/add.
05f69012	2015-03-31T16:28:13	checkout: remove blocking dir when FORCEd
3520c970	2015-03-27T15:39:28	Revert "Always checkout with case sensitive iterator" This reverts commit 40d791545abfb3cb71553a27dc64129e1a9bec28.
69f0032b	2015-04-28T12:40:20	Fix some build warnings In checkout.c and filter.c we were casting a sub struct to a parent struct which breaks the strict aliasing rules in C. However we can use .parent or .base to access the parent struct to avoid the build warnings. In remote.c the local variable error was not initialized or updated in some cases. For unintialized error a build warning will be generated. So always keep error variable up-to-date.
d3282680	2015-04-20T23:41:04	Fix index-adding functions to know when to trust filemodes. The idea...sometimes, a filemode is user-specified via an explicit git_index_entry. In this case, believe the user, always. Sometimes, it is instead built up by statting the file system. In those cases, go with the existing logic we have to determine whether the file system supports all filemodes and symlinks, and make the best guess. On file systems which have full filemode and symlink support, this commit should make no difference. On others (most notably Windows), this will fix problems things like: * git_index_add and git_index_add_frombuffer() should be believed. * As a consequence, git_checkout_tree should make the filemodes in the index match the ones in the tree. * And diffs with GIT_DIFF_UPDATE_INDEX don't write the wrong filemodes. * And merges, and probably other downstream stuff now fixed, too. This makes my previous changes to checkout.c unnecessary, so they are now reverted. Also, added a test for index_entry permissions from git_index_add and git_index_add_frombuffer, both of which failed before these changes.
6598aa7e	2015-04-16T14:10:34	Oops...need bitwise, not logical negation.
67db2bde	2015-03-10T12:02:45	Fix git_checkout_tree() to do index filemodes correctly on Windows. git_checkout_tree() has some fallback behaviors for file systems which don't have full support of filemodes. Generally works fine, but if a given file had a change of type from a 0644 to 0755 (i.e., you add executable permissions), the fallback behavior incorrectly triggers when writing hte updated index. This would cause a git_checkout_tree() command, even with the GIT_CHECKOUT_FORCE option set, to leave a dirty index on Windows. Also added checks to an existing test to catch this case.
7c3834d1	2015-03-24T10:18:44	Merge pull request #3010 from ethomson/checkout_invalid_path_err checkout: report correct invalid path
3cda9cf2	2015-03-23T11:30:30	checkout: report correct invalid path
9a97f49e	2014-12-21T15:31:03	config: borrow refcounted references This changes the get_entry() method to return a refcounted version of the config entry, which you have to free when you're done. This allows us to avoid freeing the memory in which the entry is stored on a refresh, which may happen at any time for a live config. For this reason, get_string() has been forbidden on live configs and a new function get_string_buf() has been added, which stores the string in a git_buf which the user then owns. The functions which parse the string value takea advantage of the borrowing to parse safely and then release the entry.
96b82b11	2015-02-14T11:44:05	checkout: remove `GIT_CHECKOUT_SAFE_CREATE` as a strategy
e6da3e44	2015-02-14T10:33:06	checkout: upgrade to `SAFE_CREATE` when no index file When the repository does not contain an index, emulate git's behavior and upgrade to `SAFE_CREATE`. This allows us to check out repositories created with `git clone --no-checkout`.
9c9aa1ba	2015-02-19T11:32:55	filter: take `temp_buf` in `git_filter_options`
d05218b0	2015-02-19T11:25:26	filter: add `git_filter_list__load_ext` Refactor `git_filter_list__load_with_attr_reader` into `git_filter_list__load_ext`, which takes a `git_filter_options`.
795eaccd	2015-02-19T11:09:54	git_filter_opt_t -> git_filter_flag_t For consistency with the rest of the library, where an opt is an options structure.
b49edddc	2015-02-18T09:40:52	checkout: let the stream writer close the fd
b75f15aa	2015-02-18T09:25:32	git_writestream: from git_filter_stream
646364e7	2015-02-17T20:25:31	checkout: maintain temporary buffer for filters Let the filters use the checkout data's temporary buffer, instead of having to allocate new buffers each time.
e78f5c9f	2015-01-22T16:11:36	checkout: stream the blob into the filters Use the new streaming filter API during checkout.
c8e02b87	2015-02-15T21:07:05	Remove extra semicolon outside of a function Without this change, compiling with gcc and pedantic generates warning: ISO C does not allow extra ‘;’ outside of a function.
8639ea5f	2015-01-17T22:47:03	checkout: introduce GIT_CHECKOUT_DONT_WRITE_INDEX
500ec543	2015-02-03T01:46:01	checkout: hold seen dir paths in a map
9f779aac	2015-01-29T14:40:55	attrcache: don't re-read attrs during checkout During checkout, assume that the .gitattributes files aren't modified during the checkout. Instead, create an "attribute session" during checkout. Assume that attribute data read in the same checkout "session" hasn't been modified since the checkout started. (But allow subsequent checkouts to invalidate the cache.) Further, cache nonexistent git_attr_file data even when .gitattributes files are not found to prevent re-scanning for nonexistent files.
11888039	2015-01-23T00:18:42	checkout: free last created directory
e74340b0	2015-01-14T18:47:00	checkout: remove files before writing new ones On case insensitive filesystems, we may have files in the working directory that case fold to a name we want to write. Remove those files (by default) so that we will not end up with a filename that has the unexpected case.
c2dee0fc	2015-01-14T13:20:21	checkout: drop newline in error message
b4cbd67f	2015-01-13T13:02:58	checkout: don't recreate previous directory Don't bother trying to recreate the previously created directory during checkout, for a modest reduction in the number of stats.
1fbfcdfc	2015-01-12T15:48:53	git_path_join_unrooted: return base len The documentation for `git_path_join_unrooted` states that the base length will be returned, so that consumers like checkout know where to start creating directories instead of always creating directories at the directory root.
1d50b364	2015-01-12T16:16:27	checkout: introduce git_checkout_perfdata Checkout can now provide performance data about the number of (some) syscalls performed using an optional callback.
40d79154	2014-05-09T19:32:52	Always checkout with case sensitive iterator On a case-insensitive filesystem, we need to deal with case-changing renames (eg, foo -> FOO) by removing the old and adding the new, exactly as if we were on a case-sensitive filesystem. Update the `checkout::tree::can_cancel_checkout_from_notify` test, now that notifications are always sent case sensitively.
a64119e3	2014-11-25T18:13:00	checkout: disallow bad paths on win32 Disallow: 1. paths with trailing dot 2. paths with trailing space 3. paths with trailing colon 4. paths that are 8.3 short names of .git folders ("GIT~1") 5. paths that are reserved path names (COM1, LPT1, etc). 6. paths with reserved DOS characters (colons, asterisks, etc) These paths would (without \\?\ syntax) be elided to other paths - for example, ".git." would be written as ".git". As a result, writing these paths literally (using \\?\ syntax) makes them hard to operate with from the shell, Windows Explorer or other tools. Disallow these.
692c0408	2014-11-09T08:09:25	Fixed a couple Clang warnings
62a617dc	2014-11-06T16:16:46	iterator: submodules are determined by an index or tree We cannot know from looking at .gitmodules whether a directory is a submodule or not. We need the index or tree we are comparing against to tell us. Otherwise we have to assume the entry in .gitmodules is stale or otherwise invalid. Thus we pass the index of the repository into the workdir iterator, even if we do not want to compare against it. This follows what git does, which even for `git diff <tree>`, it will consider staged submodules as such.

266f26ed

2020-04-05T14:35:23

checkout: use GIT_ASSERT

74520b91

2020-06-13T19:38:11

Merge pull request #5552 from libgit2/pks/small-fixes Random code cleanups and fixes

c6184f0c

2020-06-08T21:07:36

tree-wide: do not compile deprecated functions with hard deprecation When compiling libgit2 with -DDEPRECATE_HARD, we add a preprocessor definition `GIT_DEPRECATE_HARD` which causes the "git2/deprecated.h" header to be empty. As a result, no function declarations are made available to callers, but the implementations are still available to link against. This has the problem that function declarations also aren't visible to the implementations, meaning that the symbol's visibility will not be set up correctly. As a result, the resulting library may not expose those deprecated symbols at all on some platforms and thus cause linking errors. Fix the issue by conditionally compiling deprecated functions, only. While it becomes impossible to link against such a library in case one uses deprecated functions, distributors of libgit2 aren't expected to pass -DDEPRECATE_HARD anyway. Instead, users of libgit2 should manually define GIT_DEPRECATE_HARD to hide deprecated functions. Using "real" hard deprecation still makes sense in the context of CI to test we don't use deprecated symbols ourselves and in case a dependant uses libgit2 in a vendored way and knows it won't ever use any of the deprecated symbols anyway.

a6c9e0b3

2020-06-08T12:40:47

tree-wide: mark local functions as static We've accumulated quite some functions which are never used outside of their respective code unit, but which are lacking the `static` keyword. Add it to reduce their linkage scope and allow the compiler to optimize better.

46637b5e

2020-06-08T14:47:01

checkout: remove unused code for deferred removals With commit 05f690122 (checkout: remove blocking dir when FORCEd, 2015-03-31), the last case was removde that actually queued a deferred removal. This is now more than five years in the past and nobody complained, so we can rest quite assured that the deferred removal is not really needed at all. Let's remove all related code to simplify the already complicated checkout logic.

0f35efeb

2020-05-23T10:15:51

git_pool_init: handle failure cases Propagate failures caused by pool initialization errors.

3f201f75

2020-05-16T13:48:04

checkout: fix file being treated as unmodified due to racy index When trying to determine whether a file changed, we try to avoid heavy operations by fist taking a look at the index, seeing whether the index entry is modified already. This doesn't seem to cut it, though, as we currently have the racy checkout::index::can_disable_pathspec_match test case: sometimes the files get restored to their original contents, sometimes they aren't. The issue is caused by a racy index [1]: in case we modify a file, add it to the index and then modify it again in-place without changing its file, then we may end up with a modified file that has the same stat(3P) info as we've currently got it in its corresponding index entry. The mitigation for this is to treat files with the same mtime as the index are treated as racily modified. We already have this logic in place for the index, but not when doing a checkout. Fix the issue by only consulting the index entry in case it has an older mtime as the index. Previously, the following script reliably had at least 20 failures, while now there is no failure to be observed anymore: ```bash j=0 for i in $(seq 100) do if ! ./libgit2_clar -scheckout::index::can_disable_pathspec_match >/dev/null then j=$(($j + 1)) fi done echo "Failures: $j" ``` [1]: https://git-scm.com/docs/racy-git

d62e44cb

2019-06-03T18:35:08

checkout: Fix removing untracked files by path in subdirectories The checkout code didn't iterate into a subdir if it didn't match the pathspec, but since the pathspec might match files in the subdir we should recurse into it (In contrast to gitignore handling). Fixes #5089

63de2128

2020-02-02T20:20:19

checkout: filter pathspecs for _all_ checkout types We were previously applying the pathspec filter for the baseline iterator during checkout, as well as the target tree. This was an oversight; in fact, we should apply the pathspec filter to _all_ checkout targets, not just trees. Add a helper function to set the iterator pathspecs from the given checkout pathspecs, and call it everywhere.

e4034dfa

2019-12-03T19:24:59

path: protect NTFS everywhere Enable core.protectNTFS by default everywhere and in every codepath, not just on checkout.

64c612cc

2019-09-18T15:25:02

Protect against 8.3 "short name" attacks also on Linux/macOS The Windows Subsystem for Linux (WSL) is getting increasingly popular, in particular because it makes it _so_ easy to run Linux software on Windows' files, via the auto-mounted Windows drives (`C:\` is mapped to `/mnt/c/`, no need to set that up manually). Unfortunately, files/directories on the Windows drives can be accessed via their _short names_, if that feature is enabled (which it is on the `C:` drive by default). Which means that we have to safeguard even our Linux users against the short name attacks. Further, while the default options of CIFS/SMB-mounts seem to disallow accessing files on network shares via their short names on Linux/macOS, it _is_ possible to do so with the right options. So let's just safe-guard against short name attacks _everywhere_. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

cd5e33fb

2019-11-06T11:08:23

global: DRY includes of assert.h

6be5ac23

2019-07-11T15:30:51

checkout: postpone creation of symlinks to the end On most platforms it's fine to create symlinks to nonexisting files. Not so on Windows, where the type of a symlink (file or directory) needs to be set at creation time. So depending on whether the target file exists or not, we may end up with different symlink types. This creates a problem when performing checkouts, where we simply iterate over all blobs that need to be updated without treating symlinks any special. If the target file of the symlink is going to be checked out after the symlink itself, then the symlink will be created as directory symlink and not as file symlink. Fix the issue by iterating over blobs twice: once to perform postponed deletions and updates to non-symlink blobs, and once to perform updates to symlink blobs.

658022c4

2019-07-18T13:53:41

configuration: cvar -> configmap `cvar` is an unhelpful name. Refactor its usage to `configmap` for more clarity.

0b5ba0d7

2019-06-06T16:36:23

Rename opt init functions to `options_init` In libgit2 nomenclature, when we need to verb a direct object, we name a function `git_directobject_verb`. Thus, if we need to init an options structure named `git_foo_options`, then the name of the function that does that should be `git_foo_options_init`. The previous names of `git_foo_init_options` is close - it _sounds_ as if it's initializing the options of a `foo`, but in fact `git_foo_options` is its own noun that should be respected. Deprecate the old names; they'll now call directly to the new ones.

351eeff3

2019-01-23T10:42:46

maps: use uniform lifecycle management functions Currently, the lifecycle functions for maps (allocation, deallocation, resize) are not named in a uniform way and do not have a uniform function signature. Rename the functions to fix that, and stick to libgit2's naming scheme of saying `git_foo_new`. This results in the following new interface for allocation: - `int git_<t>map_new(git_<t>map **out)` to allocate a new map, returning an error code if we ran out of memory - `void git_<t>map_free(git_<t>map *map)` to free a map - `void git_<t>map_clear(git<t>map *map)` to remove all entries from a map This commit also fixes all existing callers.

f673e232

2018-12-27T13:47:34

git_error: use new names in internal APIs and usage Move to the `git_error` name in the internal API for error-related functions.

168fe39b

2018-11-28T14:26:57

object_type: use new enumeration names Use the new object_type enumeration names within the codebase.

5e26391a

2018-06-18T18:28:08

checkout: FORCE doesn't halt on dirty index If the index is dirty, allow `GIT_CHECKOUT_FORCE` to obliterate unsaved changes. This is in keeping with its name and description.

b242cdbf

2017-11-17T00:19:07

index: commit the changes to the index properly Now that the index has a "dirty" state, where it has changes that have not yet been committed or rolled back, our tests need to be adapted to actually commit or rollback the changes instead of assuming that the index can be operated on in its indeterminate state.

88b30f51

2017-11-12T20:50:00

checkout: always set the index in checkout data Always set the `index` in the `checkout_data`, even in the case that we are not reloading the index. Other functionality in checkout examines the index (for example: determining whether the workdir is modified) and we need it even in the (uncommon) case that we are not reloading.

ecf4f33a

2018-02-08T11:14:48

Convert usage of `git_buf_free` to new `git_buf_dispose`

a7168b47

2018-05-22T16:13:47

path: reject .gitmodules as a symlink Any part of the library which asks the question can pass in the mode to have it checked against `.gitmodules` being a symlink. This is particularly relevant for adding entries to the index from the worktree and for checking out files.

c214ba19

2018-02-20T00:35:27

checkout: respect core.filemode when comparing filemodes Fixes #4504

d7fea1e1

2018-02-18T16:10:33

checkout: take mode into account when comparing index to baseline When checking out a file, we determine whether the baseline (what we expect to be in the working directory) actually matches the contents of the working directory. This is safe behavior to prevent us from overwriting changes in the working directory. We look at the index to optimize this test: if we know that the index matches the working directory, then we can simply look at the index data compared to the baseline. We have historically compared the baseline to the index entry by oid. However, we must also compare the mode of the two items to ensure that they are identical. Otherwise, we will refuse to update the working directory for a mode change.

2a3e0635

2017-12-04T16:56:07

Do not attempt to check out submodule as blob when merging a submodule modify/deltete conflict

128c5ca9

2017-10-07T12:23:33

checkout: do not test file mode on Windows On Windows, we do not support file mode changes, so do not test for type changes between the disk and tree being checked out. We could have false positives since the on-disk file can only have an (effective) mode of 0100644 since NTFS does not support executable files. If the tree being checked out did have an executable file, we would erroneously decide that the file on disk had been changed.

752b7c79

2016-06-15T02:00:35

checkout: treat files as modified if mode differs When performing a forced checkout, treat files as modified when the workdir or the index is identical except for the mode. This ensures that force checkout will update the mode to the target. (Apply this check for regular files only, if one of the items was a file and the other was another type of item then this would be a typechange and handled independently.)

0c7f49dd

2017-06-30T13:39:01

Make sure to always include "common.h" first Next to including several files, our "common.h" header also declares various macros which are then used throughout the project. As such, we have to make sure to always include this file first in all implementation files. Otherwise, we might encounter problems or even silent behavioural differences due to macros or defines not being defined as they should be. So in fact, our header and implementation files should make sure to always include "common.h" first. This commit does so by establishing a common include pattern. Header files inside of "src" will now always include "common.h" as its first other file, separated by a newline from all the other includes to make it stand out as special. There are two cases for the implementation files. If they do have a matching header file, they will always include this one first, leading to "common.h" being transitively included as first file. If they do not have a matching header file, they instead include "common.h" as first file themselves. This fixes the outlined problems and will become our standard practice for header and source files inside of the "src/" from now on.

83989d70

2017-06-08T22:23:53

checkout: cope with untracked files in directory deletion When deleting a directory during checkout, do not simply delete the directory, since there may be untracked files. Instead, go into the iterator and examine each file. In the original code (the code with the faulty assumption), we look to see if there's an index entry beneath the directory that we want to remove. Eg, it looks to see if we have a workdir entry foo and an index entry foo/bar.txt. If this is not the case, then the working directory must have precious files in that directory. This part is okay. The part that's not okay is if there is an index entry foo/bar.txt. It just blows away the whole damned directory. That's not cool. Instead, by simply pushing the directory itself onto the stack and iterating each entry, we will deal with the files one by one - whether they're in the index (and can be force removed) or not (and are precious). The original code was a bad optimization, assuming that we didn't need to git_iterator_advance_into if there was any index entry in the folder. That's wrong - we could have optimized this iff all folder entries are in the index. Instead, we need to simply dig into the directory and analyze its entries.

77c8ee74

2017-03-20T08:59:30

checkout: fix double-free of checkout_data's mkdir_map We currently call `git_strmap_free` on `checkout_data.mkdir_map` in the `checkout_data_clear` function. The only thing protecting us from a double-free is that the `git_strmap_free` function is in fact not a function, but a macro that also sets the map to NULL. Remove the second call to `git_strmap_free` and explicitly set the map member to NULL.

13c3bc9a

2017-01-27T14:32:23

strmap: remove GIT__USE_STRMAP macro

cb76eed5

2017-01-14T17:41:49

Merge pull request #4054 from jfultz/jfultz/fix_GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH Fix handling of GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH flag.

5f959dca

2016-12-29T19:26:50

Fix handling of GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH flag. git_checkout_tree() sets up its working directory iterator to respect the pathlist if GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH is present, which is great. What's not so great is that this iterator is then used side-by-side with an iterator created by git_checkout_iterator(), which did not set up its pathlist appropriately (although the iterator mirrors all other iterator options). This could cause git_checkout_tree() to delete working tree files which were not specified in the pathlist when GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH was used, as the unsynchronized iterators causes git_checkout_tree() to think that files have been deleted between the two trees. Oops. And added a test which fails without this fix (specifically, the final check for "testrepo/README" to still be present fails).

909d5494

2016-12-29T12:25:15

giterr_set: consistent error messages Error messages should be sentence fragments, and therefore: 1. Should not begin with a capital letter, 2. Should not conclude with punctuation, and 3. Should not end a sentence and begin a new one

90a934a5

2016-11-14T10:06:17

checkout: pass string instead of git_buf to `giterr_set`

955c99c2

2016-09-14T10:28:24

checkout: don't try to calculate oid for directories When trying to determine if we can safely overwrite an existing workdir item, we may need to calculate the oid for the workdir item to determine if its identical to the old side (and eligible for removal). We previously did this regardless of the type of entry in the workdir; if it was a directory, we would open(2) it and then try to read(2). The read(2) of a directory fails on many platforms, so we would treat it as if it were unmodified and continue to perform the checkout. On FreeBSD, you _can_ read(2) a directory, so this pattern failed. We would calculate an oid from the data read and determine that the directory was modified and would therefore generate a checkout conflict. This reliance on read(2) is silly (and was most likely accidentally giving us the behavior we wanted), we should be explicit about the directory test.

88cfe614

2016-08-24T01:20:39

git_checkout_tree options fix According to the reference the git_checkout_tree and git_checkout_head functions should accept NULL in the opts field This was broken since the opts field was dereferenced and thus lead to a crash.

20302aa4

2016-06-25T23:33:05

Merge pull request #3223 from ethomson/apply Reading patch files

bb0bd71a

2016-06-15T15:47:28

checkout: use empty baseline when no index When no index file exists and a baseline is not explicitly provided, use an empty baseline instead of trying to load `HEAD`.

9be638ec

2016-04-19T15:12:18

git_diff_generated: abstract generated diffs

afab1fff

2016-02-16T21:02:41

checkout: handle dirty submodules correctly Don't generate conflicts when checking out a modified submodule and the submodule is dirty or modified in the workdir.

7b24c4fd

2016-05-02T15:47:54

checkout: set ignorecase=0 when config lookup fails When `git_repository__cvar` fails we may end up with a `ignorecase` value of `-1`. As we subsequently check if `ignorecase` is non-zero, we may end up reporting that data should be removed when in fact it should not. Err on the safer side and set `ignorecase = 0` when `git_repository__cvar` fails.

0a2e1032

2016-03-17T15:19:45

iterator: drop `advance_into_or_over` Now that iterators do not return `GIT_ENOTFOUND` when advancing into an empty directory, we do not need a special `advance_into_or_over` function.

0e0589fc

2016-03-10T00:04:26

iterator: combine fs+workdir iterators more completely Drop some of the layers of indirection between the workdir and the filesystem iterators. This makes the code a little bit easier to follow, and reduces the number of unnecessary allocations a bit as well. (Prior to this, when we filter entries, we would allocate them, filter them and then free them; now we do the filtering before allocation.) Also, rename `git_iterator_advance_over_with_status` to just `git_iterator_advance_over`. Mostly because it's a fucking long-ass function name otherwise.

702b23d7

2016-03-11T11:27:58

checkout: provide internal func to compute target path Many code paths in checkout need the final, full on-disk path of the file they're writing. (No surprise). However, they all munge the `data->path` buffer themselves to get there. Provide a nice helper method for them. Plus, drop the use `git_iterator_current_workdir_path` which does the same thing but different. Checkout is the only caller of this silly function, which lets us remove it.

684b35c4

2016-02-25T15:11:14

iterator: disambiguate reset and reset_range Disambiguate the reset and reset_range functions. Now reset_range with a NULL path will clear the start or end; reset will leave the existing start and end unchanged.

594a5d12

2016-02-18T12:28:06

Merge pull request #3619 from ethomson/win32_forbidden win32: allow us to read indexes with forbidden paths on win32

318b825e

2016-02-16T17:11:46

index: allow read of index w/ illegal entries Allow `git_index_read` to handle reading existing indexes with illegal entries. Allow the low-level `git_index_add` to add properly formed `git_index_entry`s even if they contain paths that would be illegal for the current filesystem (eg, `AUX`). Continue to disallow `git_index_add_bypath` from adding entries that are illegal universally illegal (eg, `.git`, `foo/../bar`).

3679ebae

2016-02-11T23:37:52

Horrible fix for #3173.

e2625457

2016-02-09T11:07:50

checkout: fix resource leak

25e84f95

2015-11-23T15:49:54

checkout: only consider nsecs when built that way When examining the working directory and determining whether it's up-to-date, only consider the nanoseconds in the index entry when built with `GIT_USE_NSEC`. This prevents us from believing that the working directory is always dirty when the index was originally written with a git client that uinderstands nsecs (like git 2.x).

1e5e02b4

2015-10-27T17:26:04

pool: Simplify implementation

6c014bcc

2015-09-29T12:18:17

diff: don't feed large files to xdiff

ac2fba0e

2015-09-16T15:07:27

git_futils_mkdir_*: make a relative-to-base mkdir Untangle git_futils_mkdir from git_futils_mkdir_ext - the latter assumes that we own everything beneath the base, as if it were being called with a base of the repository or working directory, and is tailored towards checkout and ensuring that there is no bogosity beneath the base that must be cleaned up. This is (at best) slow and (at worst) unsafe in the larger context of a filesystem where we do not own things and cannot do things like unlink symlinks that are in our way.

eea7c850

2015-09-16T05:44:27

checkout: overwrite files with differing modes When a file exists on disk and we're checking out a file that differs in executableness, remove the old file. This allows us to recreate the new file with p_open, which will take the new mode into account and handle setting the umask properly. Remove any notion of chmod'ing existing files, since it is now handled by the aforementioned removal and was incorrect, as it did not take umask into account.

7b73739f

2015-08-30T18:56:39

checkout: use pathlist-based iterators

ed1c6446

2015-07-28T11:41:27

iterator: use an options struct instead of args

768f8be3

2015-06-30T19:00:41

Fix #3094 - improve use of portable size_t/ssize_t format specifiers. The header src/cc-compat.h defines portable format specifiers PRIuZ, PRIdZ, and PRIxZ. The original report highlighted the need to use these specifiers in examples/network/fetch.c. For this commit, I checked all C source and header files not in deps/ and transitioned to the appropriate format specifier where appropriate.

c2418f46

2015-06-25T12:48:44

Rename FALLBACK to UNSPECIFIED Fallback describes the mechanism, while unspecified explains what the user is thinking.

c6f489c9

2015-05-04T17:29:12

submodule: add an ignore option to status This lets us specify in the status call which ignore rules we want to use (optionally falling back to whatever the submodule has in its configuration). This removes one of the reasons for having `_set_ignore()` set the value in-memory. We re-use the `IGNORE_RESET` value for this as it is no longer relevant but has a similar purpose to `IGNORE_FALLBACK`. Similarly, we remove `IGNORE_DEFAULT` which does not have use outside of initializers and move that to fall back to the configuration as well.

64bbd47a

2015-05-04T17:09:21

submodule: don't let status change an existing instance As submodules are becomes more like values, we should not let a status check to update its properties. Instead of taking a submodule, have status take a repo and submodule name.

dfda2f68

2015-04-27T19:27:29

submodule: remove the per-repo cache Having this cache and giving them out goes against our multithreading guarantees and it makes it impossible to use submodules in a multi-threaded environment, as any thread can ask for a refresh which may reallocate some string in the submodule struct which we've accessed in a different one via a getter. This makes the submodules behave more like remotes, where each object is created upon request and not shared except explicitly by the user. This means that some tests won't pass yet, as they assume they can affect the submodule objects in the cache and that will affect later operations.

96dd171e

2015-06-19T08:32:26

diff: preserve original mode in the index When updating the index during a diff, preserve the original mode, which prevents us from dropping the mode to what we have interpreted as on our system (eg, what the working directory claims it to be, which may be a lie on some systems.)

892abf93

2015-06-16T17:23:12

checkout: allow workdir to contain checkout target When checking out some file 'foo' that has been modified in the working directory, allow the checkout to proceed (do not conflict) if 'foo' is identical to the target of the checkout.

885b94aa

2015-05-28T15:26:13

Rename GIT_EMERGECONFLICT to GIT_ECONFLICT We do not error on "merge conflicts"; on the contrary, merge conflicts are a normal part of merging. We only error on "checkout conflicts", where a change exists in the index or the working directory that would otherwise be overwritten by performing the checkout. This *may* happen during merge (after the production of the new index that we're going to checkout) but it could happen during any checkout.

73dce1f6

2015-03-16T18:57:57

checkout: allow baseline to be specified as index Allow the baseline to be specified as an index, so that users need not write their index to a tree just to checkout with that as the baseline.

4beab1f8

2015-03-31T16:29:35

checkout: break case-changes into delete/add When checking out with a case-insensitive working directory, we want to change the case of items in the working directory to reflect changes that occured in the checkout target. Diff now has an option to break case-changing renames into delete/add.

05f69012

2015-03-31T16:28:13

checkout: remove blocking dir when FORCEd

3520c970

2015-03-27T15:39:28

Revert "Always checkout with case sensitive iterator" This reverts commit 40d791545abfb3cb71553a27dc64129e1a9bec28.

69f0032b

2015-04-28T12:40:20

Fix some build warnings In checkout.c and filter.c we were casting a sub struct to a parent struct which breaks the strict aliasing rules in C. However we can use .parent or .base to access the parent struct to avoid the build warnings. In remote.c the local variable error was not initialized or updated in some cases. For unintialized error a build warning will be generated. So always keep error variable up-to-date.

d3282680

2015-04-20T23:41:04

Fix index-adding functions to know when to trust filemodes. The idea...sometimes, a filemode is user-specified via an explicit git_index_entry. In this case, believe the user, always. Sometimes, it is instead built up by statting the file system. In those cases, go with the existing logic we have to determine whether the file system supports all filemodes and symlinks, and make the best guess. On file systems which have full filemode and symlink support, this commit should make no difference. On others (most notably Windows), this will fix problems things like: * git_index_add and git_index_add_frombuffer() should be believed. * As a consequence, git_checkout_tree should make the filemodes in the index match the ones in the tree. * And diffs with GIT_DIFF_UPDATE_INDEX don't write the wrong filemodes. * And merges, and probably other downstream stuff now fixed, too. This makes my previous changes to checkout.c unnecessary, so they are now reverted. Also, added a test for index_entry permissions from git_index_add and git_index_add_frombuffer, both of which failed before these changes.

6598aa7e

2015-04-16T14:10:34

Oops...need bitwise, not logical negation.

67db2bde

2015-03-10T12:02:45

Fix git_checkout_tree() to do index filemodes correctly on Windows. git_checkout_tree() has some fallback behaviors for file systems which don't have full support of filemodes. Generally works fine, but if a given file had a change of type from a 0644 to 0755 (i.e., you add executable permissions), the fallback behavior incorrectly triggers when writing hte updated index. This would cause a git_checkout_tree() command, even with the GIT_CHECKOUT_FORCE option set, to leave a dirty index on Windows. Also added checks to an existing test to catch this case.

7c3834d1

2015-03-24T10:18:44

Merge pull request #3010 from ethomson/checkout_invalid_path_err checkout: report correct invalid path

3cda9cf2

2015-03-23T11:30:30

checkout: report correct invalid path

9a97f49e

2014-12-21T15:31:03

config: borrow refcounted references This changes the get_entry() method to return a refcounted version of the config entry, which you have to free when you're done. This allows us to avoid freeing the memory in which the entry is stored on a refresh, which may happen at any time for a live config. For this reason, get_string() has been forbidden on live configs and a new function get_string_buf() has been added, which stores the string in a git_buf which the user then owns. The functions which parse the string value takea advantage of the borrowing to parse safely and then release the entry.

96b82b11

2015-02-14T11:44:05

checkout: remove `GIT_CHECKOUT_SAFE_CREATE` as a strategy

e6da3e44

2015-02-14T10:33:06

checkout: upgrade to `SAFE_CREATE` when no index file When the repository does not contain an index, emulate git's behavior and upgrade to `SAFE_CREATE`. This allows us to check out repositories created with `git clone --no-checkout`.

9c9aa1ba

2015-02-19T11:32:55

filter: take `temp_buf` in `git_filter_options`

d05218b0

2015-02-19T11:25:26

filter: add `git_filter_list__load_ext` Refactor `git_filter_list__load_with_attr_reader` into `git_filter_list__load_ext`, which takes a `git_filter_options`.

795eaccd

2015-02-19T11:09:54

git_filter_opt_t -> git_filter_flag_t For consistency with the rest of the library, where an opt is an options *structure*.

b49edddc

2015-02-18T09:40:52

checkout: let the stream writer close the fd

b75f15aa

2015-02-18T09:25:32

git_writestream: from git_filter_stream

646364e7

2015-02-17T20:25:31

checkout: maintain temporary buffer for filters Let the filters use the checkout data's temporary buffer, instead of having to allocate new buffers each time.

e78f5c9f

2015-01-22T16:11:36

checkout: stream the blob into the filters Use the new streaming filter API during checkout.

c8e02b87

2015-02-15T21:07:05

Remove extra semicolon outside of a function Without this change, compiling with gcc and pedantic generates warning: ISO C does not allow extra ‘;’ outside of a function.

8639ea5f

2015-01-17T22:47:03

checkout: introduce GIT_CHECKOUT_DONT_WRITE_INDEX

500ec543

2015-02-03T01:46:01

checkout: hold seen dir paths in a map

9f779aac

2015-01-29T14:40:55

attrcache: don't re-read attrs during checkout During checkout, assume that the .gitattributes files aren't modified during the checkout. Instead, create an "attribute session" during checkout. Assume that attribute data read in the same checkout "session" hasn't been modified since the checkout started. (But allow subsequent checkouts to invalidate the cache.) Further, cache nonexistent git_attr_file data even when .gitattributes files are not found to prevent re-scanning for nonexistent files.

11888039

2015-01-23T00:18:42

checkout: free last created directory

e74340b0

2015-01-14T18:47:00

checkout: remove files before writing new ones On case insensitive filesystems, we may have files in the working directory that case fold to a name we want to write. Remove those files (by default) so that we will not end up with a filename that has the unexpected case.

c2dee0fc

2015-01-14T13:20:21

checkout: drop newline in error message

b4cbd67f

2015-01-13T13:02:58

checkout: don't recreate previous directory Don't bother trying to recreate the previously created directory during checkout, for a modest reduction in the number of stats.

1fbfcdfc

2015-01-12T15:48:53

git_path_join_unrooted: return base len The documentation for `git_path_join_unrooted` states that the base length will be returned, so that consumers like checkout know where to start creating directories instead of always creating directories at the directory root.

1d50b364

2015-01-12T16:16:27

checkout: introduce git_checkout_perfdata Checkout can now provide performance data about the number of (some) syscalls performed using an optional callback.

40d79154

2014-05-09T19:32:52

Always checkout with case sensitive iterator On a case-insensitive filesystem, we need to deal with case-changing renames (eg, foo -> FOO) by removing the old and adding the new, exactly as if we were on a case-sensitive filesystem. Update the `checkout::tree::can_cancel_checkout_from_notify` test, now that notifications are always sent case sensitively.

a64119e3

2014-11-25T18:13:00

checkout: disallow bad paths on win32 Disallow: 1. paths with trailing dot 2. paths with trailing space 3. paths with trailing colon 4. paths that are 8.3 short names of .git folders ("GIT~1") 5. paths that are reserved path names (COM1, LPT1, etc). 6. paths with reserved DOS characters (colons, asterisks, etc) These paths would (without \\?\ syntax) be elided to other paths - for example, ".git." would be written as ".git". As a result, writing these paths literally (using \\?\ syntax) makes them hard to operate with from the shell, Windows Explorer or other tools. Disallow these.

692c0408

2014-11-09T08:09:25

Fixed a couple Clang warnings

62a617dc

2014-11-06T16:16:46

iterator: submodules are determined by an index or tree We cannot know from looking at .gitmodules whether a directory is a submodule or not. We need the index or tree we are comparing against to tell us. Otherwise we have to assume the entry in .gitmodules is stale or otherwise invalid. Thus we pass the index of the repository into the workdir iterator, even if we do not want to compare against it. This follows what git does, which even for `git diff <tree>`, it will consider staged submodules as such.

thodg/libgit2/src/checkout.c

src/checkout.c

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