git/test-path-utils.c, branch v2.7.3

test-path-utils: fix normalize_path_copy output buffer size

2016-02-22T22:51:09Z

The normalize_path_copy function needs an output buffer that is at least as long as its input (it may shrink the path, but never expand it). However, this test program feeds it static PATH_MAX-sized buffers, which have no relation to the input size. In the normalize_ceiling_entry case, we do at least check the size against PATH_MAX and die(), but that case is even more convoluted. We normalize into a fixed-size buffer, free the original, and then replace it with a strdup'd copy of the result. But normalize_path_copy explicitly allows normalizing in-place, so we can simply do that. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

t0060: loosen overly strict expectations

2016-01-15T17:26:20Z

The dirname() tests file were developed and tested on only the five platforms available to the developer at the time, namely: Linux (both 32 and 64bit), Windows XP 32-bit (MSVC), MinGW 32-bit and Cygwin 32-bit. http://pubs.opengroup.org/onlinepubs/9699919799/functions/basename.html (i.e. the POSIX spec) says, in part: If the string pointed to by path consists entirely of the '/' character, basename() shall return a pointer to the string "/". If the string pointed to by path is exactly "//", it is implementation-defined whether "/" or "//" is returned. The thinking behind testing precise, OS-dependent output values was to document that different setups produce different values. However, as the test failures on MacOSX illustrated eloquently: hardcoding pretty much each and every setup's expectations is pretty fragile. This is not limited to the "//" vs "/" case, of course, other inputs are also allowed to produce multiple outputs by the POSIX specs. So let's just test for all allowed values and be done with it. This still documents that Git cannot rely on one particular output value in those cases, so the intention of the original tests is still met. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

t0060: verify that basename() and dirname() work as expected

2016-01-12T18:41:34Z

Unfortunately, some libgen implementations yield outcomes different from what Git expects. For example, mingw-w64-crt provides a basename() function, that shortens `path0/` to `path`! So let's verify that the basename() and dirname() functions we use conform to what Git expects. Derived-from-code-by: Ramsay Jones Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

test-path-utils.c: remove incorrect assumption

2015-10-09T01:03:50Z

In normalize_ceiling_entry(), we test that normalized paths end with slash, *unless* the path to be normalized was already the root directory. However, normalize_path_copy() does not even enforce this condition. Even worse: on Windows, the root directory gets translated into a Windows directory by the Bash before being passed to `git.exe` (or `test-path-utils.exe`), which means that we cannot even know whether the path that was passed to us was the root directory to begin with. This issue has already caused endless hours of trying to "fix" the MSYS2 runtime, only to break other things due to MSYS2 ensuring that the converted path maintains the same state as the input path with respect to any final '/'. So let's just forget about this test. It is non-essential to Git's operation, anyway. Acked-by: Johannes Schindelin Signed-off-by: Ray Donnelly

path-utils test: rename mingw_path function to print_path

2013-10-14T14:32:53Z

mingw_path was introduced in abd4284 to output a mangled path as it is passed as an argument to main(). But the name is misleading because mangling does not come from MinGW, but from MSYS [1]. As abd4284 does not introduce any MSYS or MinGW specific code but just prints out argv[2] as it is passed to main(), give the function the more generic and less confusing name "print_path". [1] http://www.mingw.org/wiki/Posix_path_conversion Signed-off-by: Sebastian Schuberth Signed-off-by: Jonathan Nieder

test: run testcases with POSIX absolute paths on Windows

2013-06-26T18:25:12Z

Some test cases are skipped on Windows by marking with POSIX prereq. This is because arguments look like absolute paths (such as /a/b) for regular Windows programs (*.exe executables, no bash scripts) are changed to Windows paths (like C:/msysgit/a/b). There is no cygpath nor equivalent on msysGit, but it is easy to write one. New subcommand "mingw_path" is added in test-path-utils, so that we can get the expected absolute paths on Windows. E.g. COMMAND LINE Linux output Windows output ================================== ============ =============== test-path-utils mingw_path / / C:/msysgit test-path-utils mingw_path /a/b/ /a/b/ C:/msysgit/a/b/ With this utility, most skipped test cases in t0060 can be turned on to be tested correctly on Windows. Signed-off-by: Jiang Xin Signed-off-by: Junio C Hamano

path.c: refactor relative_path(), not only strip prefix

2013-06-26T16:59:00Z

Original design of relative_path() is simple, just strip the prefix (*base) from the absolute path (*abs). In most cases, we need a real relative path, such as: ../foo, ../../bar. That's why there is another reimplementation (path_relative()) in quote.c. Borrow some codes from path_relative() in quote.c to refactor relative_path() in path.c, so that it could return real relative path, and user can reuse this function without reimplementing his/her own. The function path_relative() in quote.c will be substituted, and I would use the new relative_path() function when implementing the interactive git-clean later. Different results for relative_path() before and after this refactor: abs path base path relative (original) relative (refactor) ======== ========= =================== =================== /a/b /a/b . ./ /a/b/ /a/b . ./ /a /a/b/ /a ../ / /a/b/ / ../../ /a/c /a/b/ /a/c ../c /x/y /a/b/ /x/y ../../x/y a/b/ a/b/ . ./ a/b/ a/b . ./ a a/b a ../ x/y a/b/ x/y ../../x/y a/c a/b a/c ../c (empty) (null) (empty) ./ (empty) (empty) (empty) ./ (empty) /a/b (empty) ./ (null) (null) (null) ./ (null) (empty) (null) ./ (null) /a/b (segfault) ./ You may notice that return value "." has been changed to "./". It is because: * Function quote_path_relative() in quote.c will show the relative path as "./" if abs(in) and base(prefix) are the same. * Function relative_path() is called only once (in setup.c), and it will be OK for the return value as "./" instead of ".". Signed-off-by: Jiang Xin Signed-off-by: Junio C Hamano

test: add test cases for relative_path

2013-06-26T16:30:26Z

Add subcommand "relative_path" in test-path-utils, and add test cases in t0060. Johannes tested an earlier version of this patch on Windows, and found that some relative_path tests should be skipped on Windows. This is because the bash on Windows rewrites arguments of regular Windows programs, such as git and the test helpers, if the arguments look like absolute POSIX paths. As a consequence, the actual tests performed are not what the tests scripts expect. The tests that need *not* be skipped are those where the two paths passed to 'test-path-utils relative_path' have the same prefix and the result is expected to be a relative path. This is because the rewriting changes "/a/b" to "D:/Src/MSysGit/a/b", and when both inputs are extended the same way, this just cancels out in the relative path computation. Signed-off-by: Jiang Xin Helped-by: Johannes Sixt Signed-off-by: Junio C Hamano

longest_ancestor_length(): require prefix list entries to be normalized

2012-10-29T06:34:58Z

Move the responsibility for normalizing prefixes from longest_ancestor_length() to its callers. Use slightly different normalizations at the two callers: In setup_git_directory_gently_1(), use the old normalization, which ignores paths that are not usable. In the next commit we will change this caller to also resolve symlinks in the paths from GIT_CEILING_DIRECTORIES as part of the normalization. In "test-path-utils longest_ancestor_length", use the old normalization, but die() if any paths are unusable. Also change t0060 to only pass normalized paths to the test program (no empty entries or non-absolute paths, strip trailing slashes from the paths, and remove tests that thereby become redundant). The point of this change is to reduce the scope of the ancestor_length tests in t0060 from testing normalization+longest_prefix to testing only mostly longest_prefix. This is necessary because when setup_git_directory_gently_1() starts resolving symlinks as part of its normalization, it will not be reasonable to do the same in the test suite, because that would make the test results depend on the contents of the root directory of the filesystem on which the test is run. HOWEVER: under Windows, bash mangles arguments that look like absolute POSIX paths into DOS paths. So we have to retain the level of normalization done by normalize_path_copy() to convert the bash-mangled DOS paths (which contain backslashes) into paths that use forward slashes. Signed-off-by: Michael Haggerty Signed-off-by: Jeff King

longest_ancestor_length(): take a string_list argument for prefixes

2012-10-29T06:34:58Z

Change longest_ancestor_length() to take the prefixes argument as a string_list rather than as a colon-separated string. This will make it easier for the caller to alter the entries before calling longest_ancestor_length(). Signed-off-by: Michael Haggerty Signed-off-by: Jeff King