kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Martin Erik Werner	655ee9ea3e	setup: don't dereference in-tree symlinks for absolute paths The prefix_path_gently() function currently applies real_path to everything if given an absolute path, dereferencing symlinks both outside and inside the work tree. This causes most high-level functions to misbehave when acting on symlinks given via absolute paths. For example $ git add /dir/repo/symlink attempts to add the target of the symlink rather than the symlink itself, which is usually not what the user intends to do. In order to manipulate symlinks in the work tree using absolute paths, symlinks should only be dereferenced outside the work tree. Modify the prefix_path_gently() to first normalize the path in order to make sure path levels are separated by '/', then pass the result to 'abspath_part_inside_repo' to find the part inside the work tree (without dereferencing any symlinks inside the work tree). For absolute paths, prefix_path_gently() did not, nor does now do, any actual prefixing, hence the result from abspath_part_in_repo() is returned as-is. Fixes t0060-82 and t3004-5. Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	11 years ago
Martin Erik Werner	e131daa4c6	t0060: add tests for prefix_path when path begins with work tree One edge-case that isn't currently checked in the tests is the beginning of the path matching the work tree, despite the target not actually being the work tree, for example: path = /dir/repoa work_tree = /dir/repo should fail since the path is outside the repo. However, if /dir/repoa is in fact a symlink that points to /dir/repo, it should instead succeed. Add two tests covering these cases, since they might be potential regression points. Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	11 years ago
Martin Erik Werner	e5aa1fc472	t0060: add test for prefix_path when path == work tree The current behaviour of prefix_path is to return an empty string if prefixing and absolute path that only contains exactly the work tree. This behaviour is a potential regression point. Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	11 years ago
Martin Erik Werner	74af95d6aa	t0060: add test for prefix_path on symlinks via absolute paths When symlinks in the working tree are manipulated using the absolute path, git dereferences them, and tries to manipulate the link target instead. This applies to most high-level commands but prefix_path is the common denominator for all of them. Add a known-breakage tests using the prefix_path function, which currently uses real_path, causing the dereference. Signed-off-by: Martin Erik Werner <martinerikwerner@gmail.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	11 years ago
Sebastian Schuberth	7ffd18fce1	path-utils test: rename mingw_path function to print_path 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 <sschuberth@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>	11 years ago
Jiang Xin	7fbd422162	relative_path should honor dos-drive-prefix Tvangeste found that the "relative_path" function could not work properly on Windows if "in" and "prefix" have DOS drive prefix (such as "C:/windows"). ($gmane/234434) E.g., When execute: test-path-utils relative_path "C:/a/b" "D:/x/y", should return "C:/a/b", but returns "../../C:/a/b", which is wrong. So make relative_path honor DOS drive prefix, and add test cases for it in t0060. Reported-by: Tvangeste <i.4m.l33t@yandex.ru> Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>	11 years ago
Jiang Xin	daf19a80fa	test: use unambigous leading path (/foo) for MSYS In test cases for relative_path, path with one leading character (such as /a, /x) may be recogonized as "a:/" or "x:/" if there is such DOS drive on MSYS platform. Use an umambigous leading path "/foo" instead. Also change two leading slashes (//) to three leading slashes (///), otherwize it will be recognized as UNC name on MSYS platform. Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Acked-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>	11 years ago
Jiang Xin	abd4284bc6	test: run testcases with POSIX absolute paths on Windows 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 <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	12 years ago
Jiang Xin	e02ca72f70	path.c: refactor relative_path(), not only strip prefix 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 <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	12 years ago
Jiang Xin	203439b284	test: add test cases for relative_path 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 <worldhello.net@gmail.com> Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	12 years ago
Michael Haggerty	9e2326c7e1	longest_ancestor_length(): require prefix list entries to be normalized 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 <mhagger@alum.mit.edu> Signed-off-by: Jeff King <peff@peff.net>	12 years ago
Johannes Sixt	bacca7852f	t0060: split absolute path test in two to exercise some of it on Windows Only the first half of the test works only on POSIX, the second half passes on Windows as well. A later test "real path removes other extra slashes" looks very similar, but it does not make sense to split it in the same way: When two slashes are prepended in front of an absolute DOS-style path on Windows, the meaning of the path is changed (//server/share style), so that the test cannot pass on Windows. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Acked-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	379a03ad81	t0060: verify that real_path() removes extra slashes Adjusted for Windows by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	f4c21e89d7	real_path(): properly handle nonexistent top-level paths The change has two points: 1. Do not strip off a leading slash, because that erroneously turns an absolute path into a relative path. 2. Do not remove slashes from groups of multiple slashes; instead let chdir() handle them. It could be, for example, that it wants to leave leading double-slashes alone. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	7bcf48dad8	t0060: verify that real_path() works correctly with absolute paths There is currently a bug: if passed an absolute top-level path that doesn't exist (e.g., "/foo") it incorrectly interprets the path as a relative path (e.g., returns "$(pwd)/foo"). So mark the test as failing. These tests are skipped on Windows because test-path-utils operates on a DOS-style absolute path even if a POSIX style absolute path is passed as argument. Adjusted for Windows by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	3efe5d1d32	real_path(): reject the empty string Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	a5c45218b6	t0060: verify that real_path() fails if passed the empty string It doesn't, so mark the test as failing. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	a0601dc11f	absolute_path(): reject the empty string Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	17264bcc4f	t0060: verify that absolute_path() fails if passed the empty string It doesn't, so mark the test as failing. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Michael Haggerty	8da650b456	t0060: move tests of real_path() from t0000 to here Suggested by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Jeff King	28baf82ea3	t0060: fix whitespace in "wc -c" invocation Some platforms like to stick extra whitespace in the output of "wc -c"; using the result without quotes gets the shell to collapse the whitespace. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago
Johannes Sixt	2718e852e9	t0060: Fix tests on Windows Since the MSYS bash mangles absolute paths that it passes as command line arguments to non-MSYS progams (such as git or test-path-utils), we have to bend over backwards to squeeze some usefulness out of the existing tests. In particular, a set of path normalization tests is added that test relative paths. Some paths in the ancestor path tests are adjusted to help MSYS bash's path mangling heuristics. Signed-off-by: Johannes Sixt <j6t@kdbg.org>	16 years ago
Johannes Schindelin	4fcc86b07d	Introduce the function strip_path_suffix() The function strip_path_suffix() will try to strip a given suffix from a given path. The suffix must start at a directory boundary (i.e. "core" is not a path suffix of "libexec/git-core", but "git-core" is). Arbitrary runs of directory separators ("slashes") are assumed identical. Example: strip_path_suffix("C:\\msysgit/\\libexec\\git-core", "libexec///git-core", &prefix) will set prefix to "C:\\msysgit" and return 0. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago
Johannes Sixt	f42302b493	Test and fix normalize_path_copy() This changes the test-path-utils utility to invoke normalize_path_copy() instead of normalize_absolute_path() because the latter is about to be removed. The test cases in t0060 are adjusted in two regards: - normalize_path_copy() more often leaves a trailing slash in the result. This has no negative side effects because the new user of this function, longest_ancester_length(), already accounts for this behavior. - The function can fail. The tests uncover a flaw in normalize_path_copy(): If there are sufficiently many '..' path components so that the root is reached, such as in "/d1/s1/../../d2", then the leading slash was lost. This manifested itself that (assuming there is a repository at /tmp/foo) $ git add /d1/../tmp/foo/some-file reported 'pathspec is outside repository'. This is now fixed. Moreover, the test case descriptions of t0060 now include the test data and expected outcome. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	16 years ago
David Reiss	0454dd93bf	Add support for GIT_CEILING_DIRECTORIES Make git recognize a new environment variable that prevents it from chdir'ing up into specified directories when looking for a GIT_DIR. Useful for avoiding slow network directories. For example, I use git in an environment where homedirs are automounted and "ls /home/nonexistent" takes about 9 seconds. Setting GIT_CEILING_DIRS="/home" allows "git help -a" (for bash completion) and "git symbolic-ref" (for my shell prompt) to run in a reasonable time. Signed-off-by: David Reiss <dreiss@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
David Reiss	ae299be0e5	Implement normalize_absolute_path normalize_absolute_path removes several oddities form absolute paths, giving nice clean paths like "/dir/sub1/sub2". Also add a test case for this utility, based on a new test program (in the style of test-sha1). Signed-off-by: David Reiss <dreiss@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago

27 Commits (adef9561f0c8cf2c974d78adac0ae236e159e49f)