Log

Author Commit Date CI Message
Patrick Steinhardt 2521e11c 2018-11-23T20:02:31 tests: mailmap: avoid definition of unused static variables The mailmap testdata header contains a set of static variable definitions. As these variables aren't used in all places where they are used, they trigger the unused-const-variable warnings. As we have currently disabled those warnings explicitly, they are never triggered, but we intend to enable them. Avoid the issue by only keeping variable definitions that are actually used in all locations. Move the others to where they are used.
Patrick Steinhardt f2f5ec84 2018-11-23T19:27:09 khash: move khash include into implementation files The current map implementations directly include the "khash.h" headers into their own headers to make available a set of static functions, defines et cetera. Besides leaking the complete khash namespace into files wherever khashes are used, this also triggers Clang's -Wunused-function warnings when some of the static functions are not being used at all. Fix the issue by moving the includes into the respective map implementation files. Add forward declares for all the map types to make them known.
Patrick Steinhardt 5bfb3b58 2018-11-23T18:48:40 khash: implement map-specific foreach macros The current foreach map macros simply redirect to the type-indifferent `kh_foreach` macro. As this type-indifferent macro directly accesses the structures, the current implementation makes it impossible to make the stuctures private to the implementation only. And making them private is required to move out the khash include into the implementations to decrease the namespace leak.
Patrick Steinhardt 681c58cf 2018-11-21T11:21:02 cmake: enable warnings for unused functions Ever since commit 823c0e9cc (Fix broken logic for attr cache invalidation, 2014-04-17), we have completely disabled warnings for unused functions. The only comment that was added back then is about "annoying extra warnings" from Clang, but in fact we shouldn't just ignore warnings about functions which aren't used at all. Instead, the right thing would be to either only conditionally compile functions that aren't used in all configurations or, alternatively, to remove functions that aren't required at all. As remaining instances of unused functions have been removed in the last two commits, re-enable the warning.
Patrick Steinhardt b2af13f2 2018-11-21T12:07:23 iterator: remove unused function `tree_iterator_entry_cmp` The function `tree_iterator_entry_cmp` has been introduced in commit be30387e8 (iterators: refactored tree iterator, 2016-02-25), but in fact it has never been used at all. Remove it to avoid unused function warnings as soon as we re-enable "-Wunused-functions".
Patrick Steinhardt 382b668b 2018-11-23T18:38:18 khash: implement begin/end via functions instead of macros Right now, the `git_*map_begin()` and `git_*map_end()` helpers are implemented via macros which simply redirect to `kh_begin` and `kh_end`. As these macros refer to members of the map structures, they make it impossible to move the khash include into the implementation files. Implement these helpers as real functions instead to further decouple the headers from implementations.
Patrick Steinhardt bbf9f5a7 2018-11-21T11:20:14 tests: path: only compile test_canonicalize on Win32 platforms The function `test_canonicalize` is only used on Win32 platforms. It will thus result in an unused function warning if these warnings are enabled and one is on a platform different than Win32. Fix the issue by only compiling in the function on Win32 platforms.
Patrick Steinhardt 14a9a4f3 2018-11-21T11:18:46 tests: move apply_helpers functions into own compilation unit Currently, the "apply_helper" functions used for testing the apply logic are all statically defined in the "apply_helpers.h" header file. This may lead to warnings from the compiler in case where this header file is included, but not all functions it brings along are used in the compilation unit where it has been included into. Fix these potential warnings by moving the implementation into its own compilation unit "apply_helpers.c".
Patrick Steinhardt 852bc9f4 2018-11-23T19:26:24 khash: remove intricate knowledge of khash types Instead of using the `khiter_t`, `git_strmap_iter` and `khint_t` types, simply use `size_t` instead. This decouples code from the khash stuff and makes it possible to move the khash includes into the implementation files.
Patrick Steinhardt ae765d00 2018-11-23T19:26:48 submodule: remove string map implementation that strips trailing slashes The submodule code currently has its own implementation of a string map, which overrides the hashing and hash equals functions with functions that ignore potential trailing slashes. These functions aren't actually used by our code, making them useless.
Patrick Steinhardt 02789782 2018-11-23T18:37:57 idxmap: remove unused foreach macros The foreach macros of the idxmap types are not used anywhere. As we are about to open-code all foreach macros for the maps in order to be able to make the khash structure internal, removing these unused macros will leave a few places less that need conversion.
Edward Thomson c3b427ba 2018-11-25T13:59:22 Merge pull request #4896 from csware/C4133 Fix warning C4133 incompatible types in MSVC
Sven Strickroth f0714daf 2018-11-25T13:36:29 Fix warning C4133 incompatible types in MSVC Introduced in commit b433a22a979ae78c28c8b16f8c3487e2787cb73e. Signed-off-by: Sven Strickroth <email@cs-ware.de>
Patrick Steinhardt 0e3e832d 2018-11-21T13:30:01 Merge pull request #4884 from libgit2/ethomson/index_iterator index: introduce git_index_iterator
Edward Thomson 94fce582 2018-11-21T10:27:59 Merge pull request #4894 from pks-t/pks/commit-author-oob commit: fix out-of-bound reads when parsing truncated author fields
Patrick Steinhardt cb23c3ef 2018-11-21T10:54:29 commit: fix out-of-bound reads when parsing truncated author fields While commit objects usually should have only one author field, our commit parser actually handles the case where a commit has multiple author fields because some tools that exist in the wild actually write them. Detection of those additional author fields is done by using a simple `git__prefixcmp`, checking whether the current line starts with the string "author ". In case where we are handed a non-NUL-terminated string that ends directly after the space, though, we may have an out-of-bounds read of one byte when trying to compare the expected final NUL byte. Fix the issue by using `git__prefixncmp` instead of `git_prefixcmp`. Unfortunately, a test cannot be easily written to catch this case. While we could test the last error message and verify that it didn't in fact fail parsing a signature (because that would indicate that it has in fact tried to parse the additional "author " field, which it shouldn't be able to detect in the first place), this doesn't work as the next line needs to be the "committer" field, which would error out with the same error message even if we hadn't done an out-of-bounds read. As objects read from the object database are always NUL terminated, this issue cannot be triggered in normal code and thus it's not security critical.
Edward Thomson 11d33df8 2018-11-18T23:39:43 Merge branch 'tiennou/fix/logallrefupdates-always'
Etienne Samson e226ad8f 2018-11-17T17:55:10 refs: add support for core.logAllRefUpdates=always Since we were not expecting this config entry to contain a string, we would fail as soon as its (cached) value would be accessed. Hence, provide some constants for the 4 states we use, and account for "always" when we decide to reflog changes.
Edward Thomson 646a94be 2018-11-18T23:15:56 Merge pull request #4847 from noahp/noahp/null-arg-fixes tests: 🌀 address two null argument instances
Edward Thomson 5c213e29 2018-11-18T22:59:03 Merge pull request #4875 from tiennou/fix/openssl-errors Some OpenSSL issues
Edward Thomson 0310749b 2018-11-18T22:58:17 Merge pull request #4892 from osener/patch-1 worktree: Expose git_worktree_add_init_options
Edward Thomson 4ef2b889 2018-11-18T22:56:28 Merge pull request #4882 from kc8apf/include_port_in_host_header transport/http: Include non-default ports in Host header
Ozan Sener 4dcd4514 2018-11-18T18:13:58 worktree: Expose git_worktree_add_init_options
Edward Thomson 7321cff0 2018-11-15T09:17:51 Merge pull request #4713 from libgit2/ethomson/win_symlinks Support symlinks on Windows when core.symlinks=true
Edward Thomson c358bbc5 2018-11-12T17:22:47 index: introduce git_index_iterator Provide a public git_index_iterator API that is backed by an index snapshot. This allows consumers to provide a stable iteration even while manipulating the index during iteration.
Edward Thomson 9189a66a 2018-11-14T12:09:48 Merge pull request #4886 from pks-t/pks/strntol-truncate-leading-sign strntol: fix out-of-bounds reads when parsing numbers with leading sign
Patrick Steinhardt 4b84db6a 2018-11-14T12:33:38 patch_parse: remove unused function `parse_number` The function `parse_number` was replaced by `git_parse_advance_digit` which is provided by the parser interface in commit 252f2eeee (parse: implement and use `git_parse_advance_digit`, 2017-07-14). As there are no remaining callers, remove it.
Patrick Steinhardt 4209a512 2018-11-14T12:04:42 strntol: fix out-of-bounds reads when parsing numbers with leading sign When parsing a number, we accept a leading plus or minus sign to return a positive or negative number. When the parsed string has such a leading sign, we set up a flag indicating that the number is negative and advance the pointer to the next character in that string. This misses updating the number of bytes in the string, though, which is why the parser may later on do an out-of-bounds read. Fix the issue by correctly updating both the pointer and the number of remaining bytes. Furthermore, we need to check whether we actually have any bytes left after having advanced the pointer, as otherwise the auto-detection of the base may do an out-of-bonuds access. Add a test that detects the out-of-bound read. Note that this is not actually security critical. While there are a lot of places where the function is called, all of these places are guarded or irrelevant: - commit list: this operates on objects from the ODB, which are always NUL terminated any may thus not trigger the off-by-one OOB read. - config: the configuration is NUL terminated. - curl stream: user input is being parsed that is always NUL terminated - index: the index is read via `git_futils_readbuffer`, which always NUL terminates it. - loose objects: used to parse the length from the object's header. As we check previously that the buffer contains a NUL byte, this is safe. - rebase: this parses numbers from the rebase instruction sheet. As the rebase code uses `git_futils_readbuffer`, the buffer is always NUL terminated. - revparse: this parses a user provided buffer that is NUL terminated. - signature: this parser the header information of objects. As objects read from the ODB are always NUL terminated, this is a non-issue. The constructor `git_signature_from_buffer` does not accept a length parameter for the buffer, so the buffer needs to be NUL terminated, as well. - smart transport: the buffer that is parsed is NUL terminated - tree cache: this parses the tree cache from the index extension. The index itself is read via `git_futils_readbuffer`, which always NUL terminates it. - winhttp transport: user input is being parsed that is always NUL terminated
Edward Thomson fd4e3b21 2018-11-13T15:33:20 Merge pull request #4885 from pks-t/pks/apply-test-fixups apply: small fixups in the test suite
Patrick Steinhardt cf83809b 2018-11-13T14:26:26 Merge pull request #4883 from pks-t/pks/signature-tz-oob signature: fix out-of-bounds read when parsing timezone offset
Noah Pendleton f127ce35 2018-11-13T08:22:25 tests: address two null argument instances Handle two null argument cases that occur in the unit tests. One is in library code, the other is in test code. Detected by running unit tests with undefined behavior sanitizer: ```bash # build mkdir build && cd build cmake -DBUILD_CLAR=ON -DCMAKE_C_FLAGS="-fsanitize=address \ -fsanitize=undefined -fstack-usage -static-libasan" .. cmake --build . # run with asan ASAN_OPTIONS="allocator_may_return_null=1" ./libgit2_clar ... ............../libgit2/src/apply.c:316:3: runtime error: null pointer \ passed as argument 1, which is declared to never be null ...................../libgit2/tests/apply/fromfile.c:46:3: runtime \ error: null pointer passed as argument 1, which is declared to never be null ```
Patrick Steinhardt afc64bcd 2018-11-13T14:13:40 tests: apply: fix reference to deprecated `git_buf_free` Since commit 56ffdfc61 (buffer: deprecate `git_buf_free` in favor of `git_buf_dispose`, 2018-02-08), the function `git_buf_free` is deprecated and shall not be used anymore. As part of the new apply framework that has been cooking for quite some time some new references have been introduced to that deprecated function. Replace them with calls to `git_buf_dispose`.
Patrick Steinhardt fe215153 2018-11-13T14:08:49 tests: apply: fix missing `cl_git_pass` wrappers Some function calls in the new "apply" test suite were missing the checks whether they succeeded as expected. Fix this by adding the missing `cl_git_pass` wrappers.
Patrick Steinhardt 20cb30b6 2018-11-13T13:40:17 Merge pull request #4667 from tiennou/feature/remote-create-api Remote creation API
Patrick Steinhardt 28239be3 2018-11-13T13:27:41 Merge pull request #4818 from pks-t/pks/index-collision Index collision fixes
Edward Thomson 11fbead8 2018-11-11T16:40:56 Merge pull request #4705 from libgit2/ethomson/apply Patch (diff) application
Edward Thomson 2f5f3cfd 2018-11-10T11:07:01 Merge pull request #4880 from libgit2/ethomson/smart_transport_url smart transport: only clear url on hard reset (regression)
Rick Altherr 83b35181 2018-10-19T10:54:38 transport/http: Include non-default ports in Host header When the port is omitted, the server assumes the default port for the service is used (see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Host). In cases where the client provided a non-default port, it should be passed along. This hasn't been an issue so far as the git protocol doesn't include server-generated URIs. I encountered this when implementing Rust registry support for Sonatype Nexus. Rust's registry uses a git repository for the package index. Clients look at a file in the root of the package index to find the base URL for downloading the packages. Sonatype Nexus looks at the incoming HTTP request (Host header and URL) to determine the client-facing URL base as it may be running behind a load balancer or reverse proxy. This client-facing URL base is then used to construct the package download base URL. When libgit2 fetches the index from Nexus on a non-default port, Nexus trusts the incorrect Host header and generates an incorrect package download base URL.
Rick Altherr 58b60fcc 2018-11-08T09:31:28 netops: add method to return default http port for a connection Constant strings and logic for HTTP(S) default ports were starting to be spread throughout netops.c. Instead of duplicating this again to determine if a Host header should include the port, move the default port constants and logic into an internal method in netops.{c,h}.
Patrick Steinhardt 52f859fd 2018-11-09T19:32:08 signature: fix out-of-bounds read when parsing timezone offset When parsing a signature's timezone offset, we first check whether there is a timezone at all by verifying that there are still bytes left to read following the time itself. The check thus looks like `time_end + 1 < buffer_end`, which is actually correct in this case. After setting the timezone's start pointer to that location, we compute the remaining bytes by using the formula `buffer_end - tz_start + 1`, re-using the previous `time_end + 1`. But this is in fact missing the braces around `(tz_start + 1)`, thus leading to an overestimation of the remaining bytes by a length of two. In case of a non-NUL terminated buffer, this will result in an overflow. The function `git_signature__parse` is only used in two locations. First is `git_signature_from_buffer`, which only accepts a string without a length. The string thus necessarily has to be NUL terminated and cannot trigger the issue. The other function is `git_commit__parse_raw`, which can in fact trigger the error as it may receive non-NUL terminated commit data. But as objects read from the ODB are always NUL-terminated by us as a cautionary measure, it cannot trigger the issue either. In other words, this error does not have any impact on security.
Edward Thomson 9ad96367 2018-11-07T15:31:21 smart transport: only clear url on hard reset After creating a transport for a server, we expect to be able to call `connect`, then invoke subsequent `action` calls. We provide the URL to these `action` calls, although our built-in transports happen to ignore it since they've already parsed it into an internal format that they intend to use (`gitno_connection_data`). In ca2eb4608243162a13c427e74526b6422d5a6659, we began clearing the URL field after a connection, meaning that subsequent calls to transport `action` callbacks would get a NULL URL, which went undetected since the builtin transports ignore the URL when they're already connected (instead of re-parsing it into an internal format). Downstream custom transport implementations (eg, LibGit2Sharp) did notice this change, however. Since `reset_stream` is called even when we're not closing the subtransport, update to only clear the URL when we're closing the subtransport. This ensures that `action` calls will get the correct URL information even after a connection.
Patrick Steinhardt fa7aba70 2018-11-07T12:23:14 Merge pull request #4871 from pks-t/pks/tree-parsing-fixes Tree parsing fixes
Edward Thomson 4e746d80 2018-11-05T15:49:11 test: ensure applying a patch can't delete a file twice
Edward Thomson f8b9493b 2018-11-05T15:46:08 apply: test re-adding a file after removing it Ensure that we can add a file back after it's been removed. Update the renamed/deleted validation in application to not apply to deltas that are adding files to support this.
Edward Thomson 78580ad3 2018-11-05T15:34:59 apply: test modifying a file after renaming it Ensure that we cannot modify a file after it's been renamed out of the way. If multiple deltas exist for a single path, ensure that we do not attempt to modify a file after it's been renamed out of the way. To support this, we must track the paths that have been removed or renamed; add to a string map when we remove a path and remove from the string map if we recreate a path. Validate that we are not applying to a path that is in this map, unless the delta is a rename, since git supports renaming one file to two different places in two different deltas. Further, test that we cannot apply a modification delta to a path that will be created in the future by a rename (a path that does not yet exist.)
Edward Thomson db6b1164 2018-07-10T16:13:17 apply tests: test delta callback errors Test that we can return an error from the apply delta callback and the error code is propagated back to the caller.
Edward Thomson af33210b 2018-07-10T16:10:03 apply: introduce a delta callback Introduce a callback to the application options that allow callers to add a per-delta callback. The callback can return an error code to stop patch application, or can return a value to skip the application of a particular delta.
Edward Thomson 605066ee 2018-11-05T14:37:35 apply: test renaming a file after modifying it Multiple deltas can exist in a diff, and can be applied in-order. If there exists a delta that modifies a file followed by a delta that renames that file, then both will be captured. The modification delta will be applied and the resulting file will be staged with the original filename. The rename delta will be independently applied - to the original file (not the modified file from the original delta) and staged independently.
Edward Thomson bd682f3e 2018-11-04T19:01:57 apply: test that we can't rename a file after modifying it Multiple deltas can exist in a diff, and can be applied in-order. However if there exists a delta that renames a file, it must be first, so that other deltas can reference the resulting target file. git enforces this (`error: already exists in index`), so ensure that we do, too.
Edward Thomson a3c1070c 2018-11-04T14:07:22 apply: test modify delta after rename delta Ensure that we can apply a delta after renaming a file.
Edward Thomson 07e71bfa 2018-11-04T13:14:20 apply: test multiple deltas to new file
Edward Thomson df4258ad 2018-11-04T13:01:03 apply: handle multiple deltas to the same file git allows a patch file to contain multiple deltas to the same file: although it does not produce files in this format itself, this could be the result of concatenating two different patch files that affected the same file. git apply behaves by applying this next delta to the existing postimage of the file. We should do the same. If we have previously seen a file, and produced a postimage for it, we will load that postimage and apply the current delta to that. If we have not, get the file from the preimage.
Edward Thomson c71e964a 2018-11-04T12:21:57 apply: test rename 1 to 2 Test that a patch can contain two deltas that appear to rename an initial source file to two different destination paths. Git creates both target files with the initial source contents; ensure that we do, too.
Edward Thomson 56a2ae0c 2018-11-04T12:18:01 apply: test rename 2 to 1 Test that we can apply a patch that renames two different files to the same target filename. Git itself handles this scenario in a last-write wins, such that the rename listed last is the one persisted in the target. Ensure that we do the same.
Edward Thomson 235dc9b2 2018-11-04T12:05:46 apply: test circular rename Test a rename from A->B simultaneous with a rename from B->A.
Edward Thomson 89b5a56e 2018-11-04T11:58:20 apply: test rename A -> B -> C scenarios Test that we can rename some file from B->C and then rename some other file from A->B. Do this with both exact rename patches (eg `rename from ...` / `rename to ...`) and patches that remove the files and replace them entirely.
Edward Thomson 6fecf4d1 2018-11-04T11:47:46 apply: handle exact renames Deltas containing exact renames are special; they simple indicate that a file was renamed without providing additional metadata (like the filemode). Teach the reader to provide the file mode and use the preimage's filemode in the case that the delta does not provide one.)
Edward Thomson 12f9ac17 2018-11-04T11:26:42 apply: validate unchanged mode when applying both When applying to both the index and the working directory, ensure that the working directory's mode matches the index's mode. It's not sufficient to look only at the hashed object id to determine that the file is unchanged, git also takes the mode into account.
Edward Thomson b73a42f6 2018-11-04T10:48:23 apply: test a patch with rename and modification Create a test applying a patch with a rename and a modification of a file.
Jason Haslam 620ac9c2 2017-04-11T14:41:57 patch: add tests for aborting hunk callback
Jason Haslam 72630572 2017-03-30T22:40:47 patch: add support for partial patch application Add hunk callback parameter to git_apply__patch to allow hunks to be skipped.
Edward Thomson 52e27b84 2018-10-10T12:42:54 reader: free is unused and unnecessary None of the reader implementations actually allocate anything themselves, so they don't need a free function. Remove it.
Edward Thomson 47cc5f85 2018-09-29T19:32:51 apply: introduce a hunk callback Introduce a callback to patch application that allows consumers to cancel hunk application.
Edward Thomson 398d8bfe 2018-07-16T17:19:08 apply tests: tests a diff w/ many small changes
Edward Thomson b8840db7 2018-07-10T16:18:45 apply tests: test delta callback skip Test that we can return a non-zero value from the apply delta callback and it will skip the application of a given delta.
Edward Thomson 37b25ac5 2018-07-08T16:12:58 apply: move location to an argument, not the opts Move the location option to an argument, out of the options structure. This allows the options structure to be re-used for functions that don't need to know the location, since it's implicit in their functionality. For example, `git_apply_tree` should not take a location, but is expected to take all the other options.
Edward Thomson 2d27ddc0 2018-07-01T21:35:51 apply: use an indexwriter Place the entire `git_apply` operation inside an indexwriter, so that we lock the index before we begin performing patch application. This ensures that there are no other processes modifying things in the working directory.
Edward Thomson eb76e985 2018-07-01T21:21:25 apply tests: ensure mode changes occur Test that a mode change is reflected in the working directory or index.
Edward Thomson 5c63ce79 2018-07-01T11:10:03 apply tests: test with CR/LF filtering Ensure that we accurately CR/LF filter when reading from the working directory. If we did not, we would erroneously fail to apply the patch because the index contents did not match the working directory contents.
Edward Thomson 9be89bbd 2018-07-01T11:08:26 reader: apply working directory filters When reading a file from the working directory, ensure that we apply any necessary filters to the item. This ensures that we get the repository-normalized data as the preimage, and further ensures that we can accurately compare the working directory contents to the index contents for accurate safety validation in the `BOTH` case.
Edward Thomson 813f0802 2018-07-01T15:14:36 apply: validate workdir contents match index for BOTH When applying to both the index and the working directory, ensure that the index contents match the working directory. This mirrors the requirement in `git apply --index`. This also means that - along with the prior commit that uses the working directory contents as the checkout baseline - we no longer expect conflicts during checkout. So remove the special-case error handling for checkout conflicts. (Any checkout conflict now would be because the file was actually modified between the start of patch application and the checkout.)
Edward Thomson 0f4b2f02 2018-07-01T15:13:50 reader: optionally validate index matches workdir When using a workdir reader, optionally validate that the index contents match the working directory contents.
Edward Thomson 3b674660 2018-07-01T13:46:59 apply tests: ensure we can patch a modified file Patch application need not be on an unmodified file; applying to an already changed file is supported provided the patch still applies cleanly. Add tests that modifies the contents of a file then applies the patch and ensures that the patch applies cleanly, and the original changes are also kept.
Edward Thomson 5b8d5a22 2018-07-01T13:42:53 apply: use preimage as the checkout baseline Use the preimage as the checkout's baseline. This allows us to support applying patches to files that are modified in the working directory (those that differ from the HEAD and index). Without this, files will be reported as (checkout) conflicts. With this, we expect the on-disk data when we began the patch application (the "preimage") to be on-disk during checkout. We could have also simply used the `FORCE` flag to checkout to accomplish a similar mechanism. However, `FORCE` ignores all differences, while providing a preimage ensures that we will only overwrite the file contents that we actually read. Modify the reader interface to provide the OID to support this.
Edward Thomson 4ff829e9 2018-06-30T17:20:03 apply tests: test index+workdir application Test application with `GIT_APPLY_LOCATION_BOTH`, which emulates `git apply --index`, updating both the index and the working directory with the postimage.
Edward Thomson dddfff77 2018-06-30T17:12:16 apply: convert checkout conflicts to apply failures When there's a checkout conflict during apply, that means that the working directory was modified in a conflicting manner and the postimage cannot be written. During application, convert this to an application failure for consistency across workdir/index/both applications.
Edward Thomson 9db66c79 2018-06-29T12:50:38 apply test: apply with non-conflicting changes Ensure that we can apply to the working directory or the index when the application target is modified, so long as there are not conflicting changes to the items.
Edward Thomson 771bd81e 2018-06-29T12:40:16 apply tests: ensure apply failures leave index unmodified
Edward Thomson 5b66b667 2018-06-29T12:39:41 apply: when preimage file is missing, return EAPPLYFAIL The preimage file being missing entirely is simply a case of an application failure; return the correct error value for the caller.
Edward Thomson e0224121 2018-06-29T12:09:02 apply: simplify checkout vs index application Separate the concerns of applying via checkout and updating the repository's index. This results in simpler functionality and allows us to not build the temporary collection of paths in the index case.
Edward Thomson 2bd3cfea 2018-06-29T11:43:55 apply tests: modified wd items are ok when applying to index When applying to the index (using `GIT_APPLY_LOCATION_INDEX`), ensure that items modified in the working directory do not conflict with the application.
Edward Thomson d7090ee4 2018-06-28T17:26:24 apply tests: ensure we can add and remove files from the index Add a test that adds a new file, and another that removes a file when applying using `GIT_APPLY_LOCATION_INDEX` to ensure that they work.
Edward Thomson 20f8a6db 2018-06-28T17:26:21 apply: remove deleted paths from index We update the index with the new_file side of the delta, but we need to explicitly remove the old_file path in the case where an item was deleted or renamed.
Edward Thomson 9d81defa 2018-06-28T16:26:08 apply tests: GIT_APPLY_LOCATION_INDEX with parsed patches
Edward Thomson eef34e4e 2018-06-28T16:24:21 apply tests: GIT_APPLY_LOCATION_INDEX with generated patches Test a simple patch application with `GIT_APPLY_LOCATION_INDEX`, which emulates `git apply --cached`.
Edward Thomson c010c93b 2018-06-27T16:50:07 apply tests: move helpers into common area
Edward Thomson 35d525b0 2018-06-26T09:19:12 apply: test that failures don't dirty workdir Ensure that when a patch application fails (due to a conflict in the working directory, for example) that we do not half-apply the patch or otherwise leave the working directory dirty. This is rather obvious in our current apply implementation (we do a two step process: one to create the post-image and one to check it out) but this test is a safety net for future refactoring or improvements.
Edward Thomson c3077ea0 2018-06-25T21:24:49 apply: return a specific exit code on failure Return `GIT_EAPPLYFAIL` on patch application failure so that users can determine that patch application failed due to a malformed/conflicting patch by looking at the error code.
Edward Thomson 973bf0c8 2018-06-25T20:49:22 apply: test a patch can be applied even with a modified index Ensure that we can apply a patch to the working directory, even to files that are modified in the index (as long as the working directory contents match the preimage - such that the working directory is unmodified from HEAD).
Edward Thomson 553395dc 2018-06-25T20:21:01 apply: test that the index is not modified Ensure that by default, when using GIT_APPLY_LOCATION_WORKDIR, that patch application does not update the index, only the working directory.
Edward Thomson 0eb63b9f 2018-06-25T19:50:35 apply tests: separate common patch hunks Move the commonly-used patch hunks into a single constant location. This allows us to avoid re-declaring them in each test, and allows us to compose them to build a larger patch file that includes all the hunks.
Edward Thomson 702d4bec 2018-06-26T15:26:37 apply tests: use `git_iterator_foreach` for tests Use the new `git_iterator_foreach` API to validate the workdir against the expected workdir values instead of using the paired/multi iterator comparison callback. This allows us to use the `git_iterator_foreach` to validate the index as well, instead of assuming that the index and HEAD must always match.
Edward Thomson d54aa9ae 2018-06-26T15:25:30 iterator: introduce `git_iterator_foreach` Introduce a `git_iterator_foreach` helper function which invokes a callback on all files for a given iterator.
Edward Thomson 9c34c996 2018-06-25T17:03:14 apply: handle file additions Don't attempt to read the postimage file during a file addition, simply use an empty buffer as the postimage. Also, test that we can handle file additions.
Edward Thomson 3b5378c5 2018-06-25T16:27:06 apply: handle file deletions If the file was deleted in the postimage, do not attempt to update the target. Instead, ignore it and simply allow it to stay removed in our computed postimage. Also, test that we can handle file deletions.
Edward Thomson af3287f8 2018-06-22T19:27:19 apply: test `git_apply` with a parsed patch Ensure that we can apply a simple patch to the working directory when we have parsed it from a patch file.
Edward Thomson ff296b71 2018-03-19T19:50:52 apply: test `git_apply` application to a workdir Introduce a standard test applying a diff to a working directory with no complications.
Edward Thomson f83bbe0a 2018-03-19T19:50:45 apply: introduce `git_apply` Introduce `git_apply`, which will take a `git_diff` and apply it to the working directory (akin to `git apply`), the index (akin to `git apply --cached`), or both (akin to `git apply --index`).
Edward Thomson 664cda6f 2018-03-19T20:10:38 apply: reimplement `git_apply_tree` with readers The generic `git_reader` interface simplifies `git_apply_tree` somewhat. Reimplement `git_apply_tree` with them.
Edward Thomson d73043a2 2018-03-19T20:10:31 reader: a generic way to read files from repos Similar to the `git_iterator` interface, the `git_reader` interface will allow us to read file contents from an arbitrary repository-backed data source (trees, index, or working directory).