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2021-07-30t0001: fix broken not-quite getcwd(3) test in bed67874e2Libravatar Ævar Arnfjörð Bjarmason1-1/+4
With a54e938e5b (strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSD, 2017-03-26) we had t0001 break on systems like OpenBSD and AIX whose getcwd(3) has standard (but not like glibc et al) behavior. This was partially fixed in bed67874e2 (t0001: skip test with restrictive permissions if getpwd(3) respects them, 2017-08-07). The problem with that fix is that while its analysis of the problem is correct, it doesn't actually call getcwd(3), instead it invokes "pwd -P". There is no guarantee that "pwd -P" is going to call getcwd(3), as opposed to e.g. being a shell built-in. On AIX under both bash and ksh this test breaks because "pwd -P" will happily display the current working directory, but getcwd(3) called by the "git init" we're testing here will fail to get it. I checked whether clobbering the $PWD environment variable would affect it, and it didn't. Presumably these shells keep track of their working directory internally. There's possible follow-up work here in teaching strbuf_getcwd() to get the working directory with whatever method "pwd" uses on these platforms. See [1] for a discussion of that, but let's take the easy way out here and just skip these tests by fixing the GETCWD_IGNORES_PERMS prerequisite to match the limitations of strbuf_getcwd(). 1. https://lore.kernel.org/git/b650bef5-d739-d98d-e9f1-fa292b6ce982@web.de/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-25init: fix bug regarding ~/ expansion in init.templateDirLibravatar Matheus Tavares1-8/+20
We used to read the init.templateDir setting at builtin/init-db.c using a git_config() callback that, in turn, called git_config_pathname(). To simplify the config reading logic at this file and plug a memory leak, this was replaced by a direct call to git_config_get_value() at e4de4502e6 ("init: remove git_init_db_config() while fixing leaks", 2021-03-14). However, this function doesn't provide path expanding semantics, like git_config_pathname() does, so paths with '~/' and '~user/' are treated literally. This makes 'git init' fail to handle init.templateDir paths using these constructs: $ git config init.templateDir '~/templates_dir' $ git init 'warning: templates not found in ~/templates_dir' Replace the git_config_get_value() call by git_config_get_pathname(), which does the '~/' and '~user/' expansions. Also add a regression test. Note that unlike git_config_get_value(), the config cache does not own the memory for the path returned by git_config_get_pathname(), so we must free() it. Reported on IRC by rkta. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-13init: provide useful advice about init.defaultBranchLibravatar Johannes Schindelin1-1/+8
To give ample warning for users wishing to override Git's the fall-back for an unconfigured `init.defaultBranch` (in case we decide to change it in a future Git version), let's introduce some advice that is shown upon `git init` when that value is not set. Note: two test cases in Git's test suite want to verify that the `stderr` output of `git init` is empty. It is now necessary to suppress the advice, we now do that via the `init.defaultBranch` setting. While not strictly necessary, we also set this to `false` in `test_create_repo()`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-13branch -m: allow renaming a yet-unborn branchLibravatar Johannes Schindelin1-0/+8
In one of the next commits, we would like to give users some advice regarding the initial branch name, and how to modify it. To that end, it would be good if `git branch -m <name>` worked in a freshly initialized repository without any commits. Let's make it so. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-23tests: start moving to a different default main branch nameLibravatar Johannes Schindelin1-3/+10
To allow for an incremental conversion to a new default main branch name, let's introduce `GIT_TEST_DEFAULT_MAIN_BRANCH_NAME`. This environment variable can be set at the top of each converted test script, overriding the default main branch name to use when initializing new repositories (or cloning empty repositories). Note: the `GIT_TEST_DEFAULT_MAIN_BRANCH_NAME` is _not_ intended to be used manually; many tests require a specific main branch name and cannot simply work with another one. This `GIT_TEST_*` variable is meant purely for the transitional period while the entire test suite is converted to use `main` as the initial branch name by default. We also introduce the `PREPARE_FOR_MAIN_BRANCH` prereq that determines whether the default main branch name is `main`, and adjust a couple of test functions to use it. This prereq will be used to temporarily disable a couple test cases to allow for adjusting the test script incrementally. Once an entire test is adjusted, we will adjust the test so that it is run with `GIT_TEST_DEFAULT_MAIN_BRANCH_NAME=main`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-31init: make --separate-git-dir work from within linked worktreeLibravatar Eric Sunshine1-2/+19
The intention of `git init --separate-work-dir=<path>` is to move the .git/ directory to a location outside of the main worktree. When used within a linked worktree, however, rather than moving the .git/ directory as intended, it instead incorrectly moves the worktree's .git/worktrees/<id> directory to <path>, thus disconnecting the linked worktree from its parent repository and breaking the worktree in the process since its local .git file no longer points at a location at which it can find the object database. Fix this broken behavior. An intentional side-effect of this change is that it also closes a loophole not caught by ccf236a23a (init: disallow --separate-git-dir with bare repository, 2020-08-09) in which the check to prevent --separate-git-dir being used in conjunction with a bare repository was unable to detect the invalid combination when invoked from within a linked worktree. Therefore, add a test to verify that this loophole is closed, as well. Reported-by: Henré Botha <henrebotha@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-31init: teach --separate-git-dir to repair linked worktreesLibravatar Eric Sunshine1-0/+11
A linked worktree's .git file is a "gitfile" pointing at the .git/worktrees/<id> directory within the repository. When `git init --separate-git-dir=<path>` is used on an existing repository to relocate the repository's .git/ directory to a different location, it neglects to update the .git files of linked worktrees, thus breaking the worktrees by making it impossible for them to locate the repository. Fix this by teaching --separate-git-dir to repair the .git file of each linked worktree to point at the new repository location. Reported-by: Henré Botha <henrebotha@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-24Merge branch 'es/init-no-separate-git-dir-in-bare'Libravatar Junio C Hamano1-0/+13
The purpose of "git init --separate-git-dir" is to initialize a new project with the repository separate from the working tree, or, in the case of an existing project, to move the repository (the .git/ directory) out of the working tree. It does not make sense to use --separate-git-dir with a bare repository for which there is no working tree, so disallow its use with bare repositories. * es/init-no-separate-git-dir-in-bare: init: disallow --separate-git-dir with bare repository
2020-08-10init: disallow --separate-git-dir with bare repositoryLibravatar Eric Sunshine1-0/+13
The purpose of "git init --separate-git-dir" is to separate the repository from the worktree. This is true even when --separate-git-dir is used on an existing worktree, in which case, it moves the .git/ subdirectory to a new location outside the worktree. However, an outright bare repository (such as one created by "git init --bare"), has no worktree, so using --separate-git-dir to separate it from its non-existent worktree is nonsensical. Therefore, make it an error to use --separate-git-dir on a bare repository. Implementation note: "git init" considers a repository bare if told so explicitly via --bare or if it guesses it to be so based upon heuristics. In the explicit --bare case, a conflict with --separate-git-dir is easy to detect early. In the guessed case, however, the conflict can only be detected once "bareness" is guessed, which happens after "git init" has begun creating the repository. Technically, we can get by with a single late check which would cover both cases, however, erroring out early, when possible, without leaving detritus provides a better user experience. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-30repository: enable SHA-256 support by defaultLibravatar brian m. carlson1-0/+33
Now that we have a complete SHA-256 implementation in Git, let's enable it so people can use it. Remove the ENABLE_SHA256 define constant everywhere it's used. Add tests for initializing a repository with SHA-256. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-24init: allow setting the default for the initial branch name via the configLibravatar Don Goodman-Wilson1-0/+13
We just introduced the command-line option `--initial-branch=<branch-name>` to allow initializing a new repository with a different initial branch than the hard-coded one. To allow users to override the initial branch name more permanently (i.e. without having to specify the name manually for each and every `git init` invocation), let's introduce the `init.defaultBranch` config setting. Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Don Goodman-Wilson <don@goodman-wilson.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-24init: allow specifying the initial branch name for the new repositoryLibravatar Johannes Schindelin1-0/+13
There is a growing number of projects and companies desiring to change the main branch name of their repositories (see e.g. https://twitter.com/mislav/status/1270388510684598272 for background on this). To change that branch name for new repositories, currently the only way to do that automatically is by copying all of Git's template directory, then hard-coding the desired default branch name into the `.git/HEAD` file, and then configuring `init.templateDir` to point to those copied template files. To make this process much less cumbersome, let's introduce a new option: `--initial-branch=<branch-name>`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-11t: restrict `is_hidden` to be called only on WindowsLibravatar Johannes Schindelin1-1/+1
The function won't work anywhere else, so let's mark it as an explicit bug if it is called on a non-Windows platform. Let's also rename the function to avoid cluttering the global namespace with an overly-generic function name. While at it, we also fix the code comment above that function: the lower-case `windows` refers to something different than `Windows`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-11t: consolidate the `is_hidden` functionsLibravatar Johannes Schindelin1-7/+0
The `is_hidden` function can be used (only on Windows) to determine whether a directory or file have their `hidden` flag set. This function is duplicated between two test scripts. It is better to move it into `test-lib-functions.sh` so that it is reused. This patch is best viewed with `--color-moved`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-09Merge branch 'jh/msvc'Libravatar Junio C Hamano1-2/+2
Support to build with MSVC has been updated. * jh/msvc: msvc: ignore .dll and incremental compile output msvc: avoid debug assertion windows in Debug Mode msvc: do not pretend to support all signals msvc: add pragmas for common warnings msvc: add a compile-time flag to allow detailed heap debugging msvc: support building Git using MS Visual C++ msvc: update Makefile to allow for spaces in the compiler path msvc: fix detect_msys_tty() msvc: define ftello() msvc: do not re-declare the timespec struct msvc: mark a variable as non-const msvc: define O_ACCMODE msvc: include sigset_t definition msvc: fix dependencies of compat/msvc.c mingw: replace mingw_startup() hack obstack: fix compiler warning cache-tree/blame: avoid reusing the DEBUG constant t0001 (mingw): do not expect a specific order of stdout/stderr Mark .bat files as requiring CR/LF endings mingw: fix a typo in the msysGit-specific section
2019-07-09Merge branch 'js/t0001-case-insensitive'Libravatar Junio C Hamano1-14/+8
Test update. * js/t0001-case-insensitive: t0001: fix on case-insensitive filesystems
2019-06-24t0001: fix on case-insensitive filesystemsLibravatar Johannes Schindelin1-14/+8
On a case-insensitive filesystem, such as HFS+ or NTFS, it is possible that the idea Bash has of the current directory differs in case from what Git thinks it is. That's totally okay, though, and we should not expect otherwise. On Windows, for example, when you call cd C:\GIT-SDK-64 in a PowerShell and there exists a directory called `C:\git-sdk-64`, the current directory will be reported in all upper-case. Even in a Bash that you might call from that PowerShell. Git, however, will have normalized this via `GetFinalPathByHandle()`, and the expectation in t0001 that the recorded gitdir will match what `pwd` says will be violated. Let's address this by comparing these paths in a case-insensitive manner when `core.ignoreCase` is `true`. Reported by Jameson Miller. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20t0001 (mingw): do not expect a specific order of stdout/stderrLibravatar Johannes Schindelin1-2/+2
When redirecting stdout/stderr to the same file, we cannot guarantee that stdout will come first. In fact, in this test case, it seems that an MSVC build always prints stderr first. In any case, this test case does not want to verify the *order* but the *presence* of both outputs, so let's test exactly that. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-13Merge branch 'nd/init-relative-template-fix'Libravatar Junio C Hamano1-1/+1
A relative pathname given to "git init --template=<path> <repo>" ought to be relative to the directory "git init" gets invoked in, but it instead was made relative to the repository, which has been corrected. * nd/init-relative-template-fix: init: make --template path relative to $CWD
2019-05-28trace2: rename environment variables to GIT_TRACE2*Libravatar SZEDER Gábor1-1/+1
For an environment variable that is supposed to be set by users, the GIT_TR2* env vars are just too unclear, inconsistent, and ugly. Most of the established GIT_* environment variables don't use abbreviations, and in case of the few that do (GIT_DIR, GIT_COMMON_DIR, GIT_DIFF_OPTS) it's quite obvious what the abbreviations (DIR and OPTS) stand for. But what does TR stand for? Track, traditional, trailer, transaction, transfer, transformation, transition, translation, transplant, transport, traversal, tree, trigger, truncate, trust, or ...?! The trace2 facility, as the '2' suffix in its name suggests, is supposed to eventually supercede Git's original trace facility. It's reasonable to expect that the corresponding environment variables follow suit, and after the original GIT_TRACE variables they are called GIT_TRACE2; there is no such thing is 'GIT_TR'. All trace2-specific config variables are, very sensibly, in the 'trace2' section, not in 'tr2'. OTOH, we don't gain anything at all by omitting the last three characters of "trace" from the names of these environment variables. So let's rename all GIT_TR2* environment variables to GIT_TRACE2*, before they make their way into a stable release. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13init: make --template path relative to $CWDLibravatar Nguyễn Thái Ngọc Duy1-1/+1
During git-init we chdir() to the target directory, but --template is not adjusted. So it's relative to the target directory instead of current directory. It would be ok if it's documented, but --template in git-init.txt mentions nothing about this behavior. Change it to be relative to $CWD, which is much more intuitive. The changes in the test suite show that this relative-to-target behavior is actually used. I just hope that it's only used in the test suite and it's safe to change. Otherwise, the other option is just document it (i.e. relative to target dir) and move on. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-12mingw: respect core.hidedotfiles = false in git-init againLibravatar Johannes Schindelin1-0/+11
This is a brown paper bag. When adding the tests, we actually failed to verify that the config variable is heeded in git-init at all. And when changing the original patch that marked the .git/ directory as hidden after reading the config, it was lost on this developer that the new code would use the hide_dotfiles variable before the config was read. The fix is obvious: read the (limited, pre-init) config *before* creating the .git/ directory. Please note that we cannot remove the identical-looking `git_config()` call from `create_default_files()`: we create the `.git/` directory between those calls. If we removed it, and if the parent directory is in a Git worktree, and if that worktree's `.git/config` contained any `init.templatedir` setting, we would all of a sudden pick that up. This fixes https://github.com/git-for-windows/git/issues/789 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-22trace2: create new combined trace facilityLibravatar Jeff Hostetler1-0/+1
Create a new unified tracing facility for git. The eventual intent is to replace the current trace_printf* and trace_performance* routines with a unified set of git_trace2* routines. In addition to the usual printf-style API, trace2 provides higer-level event verbs with fixed-fields allowing structured data to be written. This makes post-processing and analysis easier for external tools. Trace2 defines 3 output targets. These are set using the environment variables "GIT_TR2", "GIT_TR2_PERF", and "GIT_TR2_EVENT". These may be set to "1" or to an absolute pathname (just like the current GIT_TRACE). * GIT_TR2 is intended to be a replacement for GIT_TRACE and logs command summary data. * GIT_TR2_PERF is intended as a replacement for GIT_TRACE_PERFORMANCE. It extends the output with columns for the command process, thread, repo, absolute and relative elapsed times. It reports events for child process start/stop, thread start/stop, and per-thread function nesting. * GIT_TR2_EVENT is a new structured format. It writes event data as a series of JSON records. Calls to trace2 functions log to any of the 3 output targets enabled without the need to call different trace_printf* or trace_performance* routines. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-20tests: send "bug in the test script" errors to the script's stderrLibravatar SZEDER Gábor1-2/+2
Some of the functions in our test library check that they were invoked properly with conditions like this: test "$#" = 2 || error "bug in the test script: not 2 parameters to test-expect-success" If this particular condition is triggered, then 'error' will abort the whole test script with a bold red error message [1] right away. However, under certain circumstances the test script will be aborted completely silently, namely if: - a similar condition in a test helper function like 'test_line_count' is triggered, - which is invoked from the test script's "main" shell [2], - and the test script is run manually (i.e. './t1234-foo.sh' as opposed to 'make t1234-foo.sh' or 'make test') [3] - and without the '--verbose' option, because the error message is printed from within 'test_eval_', where standard output is redirected either to /dev/null or to a log file. The only indication that something is wrong is that not all tests in the script are executed and at the end of the test script's output there is no "# passed all N tests" message, which are subtle and can easily go unnoticed, as I had to experience myself. Send these "bug in the test script" error messages directly to the test scripts standard error and thus to the terminal, so those bugs will be much harder to overlook. Instead of updating all ~20 such 'error' calls with a redirection, let's add a BUG() function to 'test-lib.sh', wrapping an 'error' call with the proper redirection and also including the common prefix of those error messages, and convert all those call sites [4] to use this new BUG() function instead. [1] That particular error message from 'test_expect_success' is printed in color only when running with or without '--verbose'; with '--tee' or '--verbose-log' the error is printed without color, but it is printed to the terminal nonetheless. [2] If such a condition is triggered in a subshell of a test, then 'error' won't be able to abort the whole test script, but only the subshell, which in turn causes the test to fail in the usual way, indicating loudly and clearly that something is wrong. [3] Well, 'error' aborts the test script the same way when run manually or by 'make' or 'prove', but both 'make' and 'prove' pay attention to the test script's exit status, and even a silently aborted test script would then trigger those tools' usual noticable error messages. [4] Strictly speaking, not all those 'error' calls need that redirection to send their output to the terminal, see e.g. 'test_expect_success' in the opening example, but I think it's better to be consistent. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-27Merge branch 'sg/test-must-be-empty'Libravatar Junio C Hamano1-3/+2
Test fixes. * sg/test-must-be-empty: tests: use 'test_must_be_empty' instead of 'test_cmp <empty> <out>' tests: use 'test_must_be_empty' instead of 'test_cmp /dev/null <out>' tests: use 'test_must_be_empty' instead of 'test ! -s' tests: use 'test_must_be_empty' instead of '! test -s'
2018-08-21tests: use 'test_must_be_empty' instead of 'test_cmp <empty> <out>'Libravatar SZEDER Gábor1-3/+2
Using 'test_must_be_empty' is shorter and more idiomatic than >empty && test_cmp empty out as it saves the creation of an empty file. Furthermore, sometimes the expected empty file doesn't have such a descriptive name like 'empty', and its creation is far away from the place where it's finally used for comparison (e.g. in 't7600-merge.sh', where two expected empty files are created in the 'setup' test, but are used only about 500 lines later). These cases were found by instrumenting 'test_cmp' to error out the test script when it's used to compare empty files, and then converted manually. Note that even after this patch there still remain a lot of cases where we use 'test_cmp' to check empty files: - Sometimes the expected output is not hard-coded in the test, but 'test_cmp' is used to ensure that two similar git commands produce the same output, and that output happens to be empty, e.g. the test 'submodule update --merge - ignores --merge for new submodules' in 't7406-submodule-update.sh'. - Repetitive common tasks, including preparing the expected results and running 'test_cmp', are often extracted into a helper function, and some of this helper's callsites expect no output. - For the same reason as above, the whole 'test_expect_success' block is within a helper function, e.g. in 't3070-wildmatch.sh'. - Or 'test_cmp' is invoked in a loop, e.g. the test 'cvs update (-p)' in 't9400-git-cvsserver-server.sh'. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-03t: use sane_unset() rather than 'unset' with broken &&-chainLibravatar Eric Sunshine1-2/+2
These tests intentionally break the &&-chain after using 'unset' since they don't know if 'unset' will succeed or fail and don't want a local 'unset' failure to fail the test overall. We can do better by using sane_unset(), which can be linked into the &&-chain as usual. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-15tests: clean after SANITY testsLibravatar Junio C Hamano1-0/+1
Some of our tests try to make sure Git behaves sensibly in a read-only directory, by dropping 'w' permission bit before doing a test and then restoring it after it is done. The latter is needed for the test framework to clean after itself without leaving a leftover directory that cannot be removed. Ancient parts of tests however arrange the above with chmod a-w . && ... do the test ... status=$? chmod 775 . (exit $status) which obviously would not work if the test somehow dies before it has the chance to do "chmod 775". Rewrite them by following a more robust pattern recently written tests use, which is test_when_finished "chmod 775 ." && chmod a-w . && ... do the test ... Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02mingw: optionally redirect stderr/stdout via the same handleLibravatar Johannes Schindelin1-1/+7
The "2>&1" notation in Powershell and in Unix shells implies that stderr is redirected to the same handle into which stdout is already written. Let's use this special value to allow the same trick with GIT_REDIRECT_STDERR and GIT_REDIRECT_STDOUT: if the former's value is `2>&1`, then stderr will simply be written to the same handle as stdout. The functionality was suggested by Jeff Hostetler. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02mingw: add experimental feature to redirect standard handlesLibravatar Johannes Schindelin1-0/+6
Particularly when calling Git from applications, such as Visual Studio's Team Explorer, it is important that stdin/stdout/stderr are closed properly. However, when spawning processes on Windows, those handles must be marked as inheritable if we want to use them, but that flag is a global flag and may very well be used by other spawned processes which then do not know to close those handles. Let's introduce a set of environment variables (GIT_REDIRECT_STDIN and friends) that specify paths to files, or even better, named pipes (which are similar to Unix sockets) and that are used by the spawned Git process. This helps work around above-mentioned issue: those named pipes will be opened in a non-inheritable way upon startup, and no handles are passed around (and therefore no inherited handles need to be closed by any spawned child). This feature shipped with Git for Windows (marked as experimental) since v2.11.0(2), so it has seen some serious testing in the meantime. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-07t0001: skip test with restrictive permissions if getpwd(3) respects themLibravatar René Scharfe1-2/+28
The sub-test "init in long base path" in t0001 checks the ability to handle long base paths with restrictive permissions (--x). On OpenBSD getcwd(3) fails in that case even for short paths. Check the two aspects separately by trying to use a long base path both with and without execute-only permissions. Only attempt the former if we know that getcwd(3) doesn't care. Original-patch-by: David Coppa <dcoppa@openbsd.org> Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSDLibravatar René Scharfe1-0/+14
FreeBSD implements getcwd(3) as a syscall, but falls back to a version based on readdir(3) if it fails for some reason. The latter requires permissions to read and execute path components, while the former does not. That means that if our buffer is too small and we're missing rights we could get EACCES, but we may succeed with a bigger buffer. Keep retrying if getcwd(3) indicates lack of permissions until our buffer can fit PATH_MAX bytes, as that's the maximum supported by the syscall on FreeBSD anyway. This way we do what we can to be able to benefit from the syscall, but we also won't loop forever if there is a real permission issue. This fixes a regression introduced with 7333ed17 (setup: convert setup_git_directory_gently_1 et al. to strbuf, 2014-07-28) for paths longer than 127 bytes with components that miss read or execute permissions (e.g. 0711 on /home for privacy reasons); we used a fixed PATH_MAX-sized buffer before. Reported-by: Zenobiusz Kunegunda <zenobiusz.kunegunda@interia.pl> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-02Merge branch 'mm/reset-facl-before-umask-test'Libravatar Junio C Hamano1-0/+3
Test tweaks for those who have default ACL in their git source tree that interfere with the umask test. * mm/reset-facl-before-umask-test: t0001: don't let a default ACL interfere with the umask test
2017-01-30t0001: don't let a default ACL interfere with the umask testLibravatar Matt McCutchen1-0/+3
The "init creates a new deep directory (umask vs. shared)" test expects the permissions of newly created files to be based on the umask, which fails if a default ACL is inherited from the working tree for git. So attempt to remove a default ACL if there is one. Same idea as 8ed0a740dd42bd0724aebed6e3b07c4ea2a2d5e8. (I guess I'm the only one who ever runs the test suite with a default ACL set.) Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-25init: do not set unnecessary core.worktreeLibravatar Nguyễn Thái Ngọc Duy1-0/+2
The function needs_work_tree_config() that is called from create_default_files() is supposed to be fed the path to ".git" that looks as if it is at the top of the working tree, and decide if that location matches the actual worktree being used. This comparison allows "git init" to decide if core.worktree needs to be recorded in the working tree. In the current code, however, we feed the return value from get_git_dir(), which can be totally different from what the function expects when "gitdir" file is involved. Instead of giving the path to the ".git" at the top of the working tree, we end up feeding the actual path that the file points at. This original location of ".git" however is only known to init_db(). Make init_db() save it and have it passed to create_default_files() as a new parameter, which passes the correct location down to needs_work_tree_config() to fix this. Noticed-by: Max Nordlund <max.nordlund@sqore.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-25init: correct re-initialization from a linked worktreeLibravatar Nguyễn Thái Ngọc Duy1-0/+15
When 'git init' is called from a linked worktree, we treat '.git' dir (which is $GIT_COMMON_DIR/worktrees/something) as the main '.git' (i.e. $GIT_COMMON_DIR) and populate the whole repository skeleton in there. It does not harm anything (*) but it is still wrong. Since 'git init' calls set_git_dir() at preparation time, which indirectly calls get_common_dir() and correctly detects multiple worktree setup, all git_path_buf() calls in create_default_files() will return correct paths in both single and multiple worktree setups. The only thing left is copy_templates(), which targets $GIT_DIR, not $GIT_COMMON_DIR. Fix that with get_git_common_dir(). This function will return $GIT_DIR in single-worktree setup, so we don't have to make a special case for multiple-worktree here. (*) It does in fact, thanks to another bug. More on that later. Noticed-by: Max Nordlund <max.nordlund@sqore.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-13config: only read .git/config from configured reposLibravatar Jeff King1-0/+9
When git_config() runs, it looks in the system, user-wide, and repo-level config files. It gets the latter by calling git_pathdup(), which in turn calls get_git_dir(). If we haven't set up the git repository yet, this may simply return ".git", and we will look at ".git/config". This seems like it would be helpful (presumably we haven't set up the repository yet, so it tries to find it), but it turns out to be a bad idea for a few reasons: - it's not sufficient, and therefore hides bugs in a confusing way. Config will be respected if commands are run from the top-level of the working tree, but not from a subdirectory. - it's not always true that we haven't set up the repository _yet_; we may not want to do it at all. For instance, if you run "git init /some/path" from inside another repository, it should not load config from the existing repository. - there might be a path ".git/config", but it is not the actual repository we would find via setup_git_directory(). This may happen, e.g., if you are storing a git repository inside another git repository, but have munged one of the files in such a way that the inner repository is not valid (e.g., by removing HEAD). We have at least two bugs of the second type in git-init, introduced by ae5f677 (lazily load core.sharedrepository, 2016-03-11). It causes init to use git_configset(), which loads all of the config, including values from the current repo (if any). This shows up in two ways: 1. If we happen to be in an existing repository directory, we'll read and respect core.sharedrepository from it, even though it should have no bearing on the new repository. A new test in t1301 covers this. 2. Similarly, if we're in an existing repo that sets core.logallrefupdates, that will cause init to fail to set it in a newly created repository (because it thinks that the user's templates already did so). A new test in t0001 covers this. We also need to adjust an existing test in t1302, which gives another example of why this patch is an improvement. That test creates an embedded repository with a bogus core.repositoryformatversion of "99". It wants to make sure that we actually stop at the bogus repo rather than continuing upward to find the outer repo. So it checks that "git config core.repositoryformatversion" returns 99. But that only works because we blindly read ".git/config", even though we _know_ we're in a repository whose vintage we do not understand. After this patch, we avoid reading config from the unknown vintage repository at all, which is a safer choice. But we need to tweak the test, since core.repositoryformatversion will not return 99; it will claim that it could not find the variable at all. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-11mingw: introduce the 'core.hideDotFiles' settingLibravatar Johannes Schindelin1-0/+30
On Unix (and Linux), files and directories whose names start with a dot are usually not shown by default. This convention is used by Git: the .git/ directory should be left alone by regular users, and only accessed through Git itself. On Windows, no such convention exists. Instead, there is an explicit flag to mark files or directories as hidden. In the early days, Git for Windows did not mark the .git/ directory (or for that matter, any file or directory whose name starts with a dot) hidden. This lead to quite a bit of confusion, and even loss of data. Consequently, Git for Windows introduced the core.hideDotFiles setting, with three possible values: true, false, and dotGitOnly, defaulting to marking only the .git/ directory as hidden. The rationale: users do not need to access .git/ directly, and indeed (as was demonstrated) should not really see that directory, either. However, not all dot files should be hidden by default, as e.g. Eclipse does not show them (and the user would therefore be unable to see, say, a .gitattributes file). In over five years since the last attempt to bring this patch into core Git, a slightly buggy version of this patch has served Git for Windows' users well: no single report indicated problems with the hidden .git/ directory, and the stream of problems caused by the previously non-hidden .git/ directory simply stopped. The bugs have been fixed during the process of getting this patch upstream. Note that there is a funny quirk we have to pay attention to when creating hidden files: we use Win32's _wopen() function which transmogrifies its arguments and hands off to Win32's CreateFile() function. That latter function errors out with ERROR_ACCESS_DENIED (the equivalent of EACCES) when the equivalent of the O_CREAT flag was passed and the file attributes (including the hidden flag) do not match an existing file's. And _wopen() accepts no parameter that would be transmogrified into said hidden flag. Therefore, we simply try again without O_CREAT. A slightly different method is required for our fopen()/freopen() function as we cannot even *remove* the implicit O_CREAT flag. Therefore, we briefly mark existing files as unhidden when opening them via fopen()/freopen(). The ERROR_ACCESS_DENIED error can also be triggered by opening a file that is marked as a system file (which is unlikely to be tracked in Git), and by trying to create a file that has *just* been deleted and is awaiting the last open handles to be released (which would be handled better by the "Try again?" logic, a story for a different patch series, though). In both cases, it does not matter much if we try again without the O_CREAT flag, read: it does not hurt, either. For details how ERROR_ACCESS_DENIED can be triggered, see https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858 Original-patch-by: Erik Faye-Lund <kusmabite@gmail.com> Initial-Test-By: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-04Merge branch 'nd/clear-gitenv-upon-use-of-alias'Libravatar Junio C Hamano1-11/+9
Hotfix for a test breakage made between 2.7 and 'master'. * nd/clear-gitenv-upon-use-of-alias: t0001: fix GIT_* environment variable check under --valgrind
2016-03-03t0001: fix GIT_* environment variable check under --valgrindLibravatar Johannes Sixt1-11/+9
When a test case is run without --valgrind, the wrap-for-bin.sh helper script inserts the environment variable GIT_TEXTDOMAINDIR, but when run with --valgrind, the variable is missing. A recently introduced test case expects the presence of the variable, though, and fails under --valgrind. Rewrite the test case to strip conditially defined environment variables from both expected and actual output. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-20Merge branch 'nd/clear-gitenv-upon-use-of-alias'Libravatar Junio C Hamano1-0/+17
d95138e6 (setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR, 2015-06-26) attempted to work around a glitch in alias handling by overwriting GIT_WORK_TREE environment variable to affect subprocesses when set_git_work_tree() gets called, which resulted in a rather unpleasant regression to "clone" and "init". Try to address the same issue by always restoring the environment and respawning the real underlying command when handling alias. * nd/clear-gitenv-upon-use-of-alias: run-command: don't warn on SIGPIPE deaths git.c: make sure we do not leak GIT_* to alias scripts setup.c: re-fix d95138e (setup: set env $GIT_WORK_TREE when .. git.c: make it clear save_env() is for alias handling only
2015-12-22git.c: make sure we do not leak GIT_* to alias scriptsLibravatar Nguyễn Thái Ngọc Duy1-0/+17
The unfortunate commit d95138e (setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR - 2015-06-26) exposes another problem, besides git-clone that's described in the previous commit. If GIT_WORK_TREE (or even GIT_DIR) is exported to an alias script, it may mislead git commands in the script where the repo is. Granted, most scripts work on the repo where the alias is summoned from. But nowhere do we forbid the script to visit another repository. The revert of d95138e in the previous commit is sufficient as a fix. However, to protect us from accidentally leaking GIT_* environment variables again, we restore certain sensitive env before calling the external script. GIT_PREFIX is let through because there's another setup side effect that we simply accepted so far: current working directory is moved. Maybe in future we can introduce a new alias format that guarantees no cwd move, then we can unexport GIT_PREFIX. Reported-by: Gabriel Ganne <gabriel.ganne@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05init: use strbufs to store pathsLibravatar Jeff King1-2/+2
The init code predates strbufs, and uses PATH_MAX-sized buffers along with many manual checks on intermediate sizes (some of which make magic assumptions, such as that init will not create a path inside .git longer than 50 characters). We can simplify this greatly by using strbufs, which drops some hard-to-verify strcpy calls in favor of git_path_buf. While we're in the area, let's also convert existing calls to git_path to the safer git_path_buf (our existing calls were passed to pretty tame functions, and so were not a problem, but it's easy to be consistent and safe here). Note that we had an explicit test that "git init" rejects long template directories. This comes from 32d1776 (init: Do not segfault on big GIT_TEMPLATE_DIR environment variable, 2009-04-18). We can drop the test_must_fail here, as we now accept this and need only confirm that we don't segfault, which was the original point of the test. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-05Merge branch 'mh/config-flip-xbit-back-after-checking'Libravatar Junio C Hamano1-0/+7
* mh/config-flip-xbit-back-after-checking: create_default_files(): don't set u+x bit on $GIT_DIR/config
2014-11-18create_default_files(): don't set u+x bit on $GIT_DIR/configLibravatar Michael Haggerty1-0/+7
Since time immemorial, the test of whether to set "core.filemode" has been done by trying to toggle the u+x bit on $GIT_DIR/config, which we know always exists, and then testing whether the change "took". I find it somewhat odd to use the config file for this test, but whatever. The test code didn't set the u+x bit back to its original state itself, instead relying on the subsequent call to git_config_set() to re-write the config file with correct permissions. But ever since daa22c6f8d config: preserve config file permissions on edits (2014-05-06) git_config_set() copies the permissions from the old config file to the new one. This is a good change in and of itself, but it invalidates the create_default_files()'s assumption, causing "git init" to leave the executable bit set on $GIT_DIR/config. Reset the permissions on $GIT_DIR/config when we are done with the test in create_default_files(). Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-25Merge branch 'nd/init-restore-env'Libravatar Junio C Hamano1-2/+2
Some subcommands do not want to be aliased because of the side effects that happens while the definitions of the aliases are looked up from configuration system. * nd/init-restore-env: git potty: restore environments after alias expansion
2014-06-10git potty: restore environments after alias expansionLibravatar Nguyễn Thái Ngọc Duy1-2/+2
Commit 4ad8332 (t0001: test git init when run via an alias - 2010-11-26) noted breakages when running init via alias. The problem is for alias to be used, $GIT_DIR must be searched, but 'init' and 'clone' are not happy with that. So we start a new process like an external command, with clean environment in this case. Env variables that are set by command line (e.g. "git --git-dir=.. ") are kept. This should also fix autocorrecting a command typo to "init" because it's the same problem: aliases are read, then "init" is unhappy with $GIT_DIR already set up because of that. Reminded-by: David Turner <dturner@twopensource.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-03Merge branch 'ep/shell-command-substitution'Libravatar Junio C Hamano1-6/+6
Adjust shell scripts to use $(cmd) instead of `cmd`. * ep/shell-command-substitution: (41 commits) t5000-tar-tree.sh: use the $( ... ) construct for command substitution t4204-patch-id.sh: use the $( ... ) construct for command substitution t4119-apply-config.sh: use the $( ... ) construct for command substitution t4116-apply-reverse.sh: use the $( ... ) construct for command substitution t4057-diff-combined-paths.sh: use the $( ... ) construct for command substitution t4038-diff-combined.sh: use the $( ... ) construct for command substitution t4036-format-patch-signer-mime.sh: use the $( ... ) construct for command substitution t4014-format-patch.sh: use the $( ... ) construct for command substitution t4013-diff-various.sh: use the $( ... ) construct for command substitution t4012-diff-binary.sh: use the $( ... ) construct for command substitution t4010-diff-pathspec.sh: use the $( ... ) construct for command substitution t4006-diff-mode.sh: use the $( ... ) construct for command substitution t3910-mac-os-precompose.sh: use the $( ... ) construct for command substitution t3905-stash-include-untracked.sh: use the $( ... ) construct for command substitution t1050-large.sh: use the $( ... ) construct for command substitution t1020-subdirectory.sh: use the $( ... ) construct for command substitution t1004-read-tree-m-u-wf.sh: use the $( ... ) construct for command substitution t1003-read-tree-prefix.sh: use the $( ... ) construct for command substitution t1002-read-tree-m-u-2way.sh: use the $( ... ) construct for command substitution t1001-read-tree-m-2way.sh: use the $( ... ) construct for command substitution ...
2014-04-29t0001-init.sh: use the $( ... ) construct for command substitutionLibravatar Elia Pinto1-6/+6
The Git CodingGuidelines prefer the $(...) construct for command substitution instead of using the backquotes `...`. The backquoted form is the traditional method for command substitution, and is supported by POSIX. However, all but the simplest uses become complicated quickly. In particular, embedded command substitutions and/or the use of double quotes require careful escaping with the backslash character. The patch was generated by: for _f in $(find . -name "*.sh") do sed -i 's@`\(.*\)`@$(\1)@g' ${_f} done and then carefully proof-read. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-21t0001: drop subshells just for "cd"Libravatar Jeff King1-47/+9
Many tests do something like: ( mkdir foo && cd foo && git init ) You can do the same these days with "git init foo", which makes the tests shorter and simpler to read. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>