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2016-02-03Merge branch 'pw/completion-show-branch'Junio C Hamano1-1/+1
* pw/completion-show-branch: completion: complete show-branch "--date-order"
2016-02-03Merge branch 'jk/completion-rebase'Junio C Hamano1-2/+6
* jk/completion-rebase: completion: add missing git-rebase options
2016-02-03Merge branch 'nd/diff-with-path-params'Junio C Hamano7-12/+25
A few options of "git diff" did not work well when the command was run from a subdirectory. * nd/diff-with-path-params: diff: make -O and --output work in subdirectory diff-no-index: do not take a redundant prefix argument
2016-02-03Merge branch 'lv/add-doc-working-tree'Junio C Hamano1-1/+1
* lv/add-doc-working-tree: git-add doc: do not say working directory when you mean working tree
2016-02-03Merge branch 'dw/subtree-split-do-not-drop-merge'Junio C Hamano2-2/+70
The "split" subcommand of "git subtree" (in contrib/) incorrectly skipped merges when it shouldn't, which was corrected. * dw/subtree-split-do-not-drop-merge: contrib/subtree: fix "subtree split" skipped-merge bug
2016-02-03Merge branch 'tb/complete-word-diff-regex'Junio C Hamano1-1/+1
* tb/complete-word-diff-regex: completion: complete "diff --word-diff-regex="
2016-02-03Merge branch 'mk/asciidoctor-bq-workaround'Junio C Hamano1-10/+10
* mk/asciidoctor-bq-workaround: Documentation: remove unnecessary backslashes
2016-02-03Merge branch 'dg/subtree-test'Junio C Hamano1-1/+5
* dg/subtree-test: contrib/subtree: Make testing easier
2016-02-03Merge branch 'tg/ls-remote-symref'Junio C Hamano3-56/+97
"ls-remote" learned an option to show which branch the remote repository advertises as its primary by pointing its HEAD at. * tg/ls-remote-symref: ls-remote: add support for showing symrefs ls-remote: use parse-options api ls-remote: fix synopsis ls-remote: document --refs option ls-remote: document --quiet option
2016-02-03Merge branch 'tb/ls-files-eol'Junio C Hamano5-49/+237
"git ls-files" learned a new "--eol" option to help diagnose end-of-line problems. * tb/ls-files-eol: ls-files: add eol diagnostics
2016-02-03Merge branch 'jk/notes-merge-from-anywhere'Junio C Hamano4-12/+29
"git notes merge" used to limit the source of the merged notes tree to somewhere under refs/notes/ hierarchy, which was too limiting when inventing a workflow to exchange notes with remote repositories using remote-tracking notes trees (located in e.g. refs/remote-notes/ or somesuch). * jk/notes-merge-from-anywhere: notes: allow merging from arbitrary references
2016-02-03Merge branch 'jc/peace-with-crlf'Junio C Hamano13-20/+15
Many commands that read files that are expected to contain text that is generated (or can be edited) by the end user to control their behaviour (e.g. "git grep -f <filename>") have been updated to be more tolerant to lines that are terminated with CRLF (they used to treat such a line to contain payload that ends with CR, which is usually not what the users expect). * jc/peace-with-crlf: test-sha1-array: read command stream with strbuf_getline() grep: read -f file with strbuf_getline() send-pack: read list of refs with strbuf_getline() column: read lines with strbuf_getline() cat-file: read batch stream with strbuf_getline() transport-helper: read helper response with strbuf_getline() clone/sha1_file: read info/alternates with strbuf_getline() remote.c: read $GIT_DIR/remotes/* with strbuf_getline() ident.c: read /etc/mailname with strbuf_getline() rev-parse: read parseopt spec with strbuf_getline() revision: read --stdin with strbuf_getline() hash-object: read --stdin-paths with strbuf_getline()
2016-02-02restore_env(): free the saved environment variable once we are doneJunio C Hamano1-2/+4
Just like we free orig_cwd, which is the value of the original working directory saved in save_env_before_alias(), once we are done with it, the contents of orig_env[] array, saved in the save_env_before_alias() function should be freed; otherwise, the second and subsequent calls to save/restore pair will leak the memory allocated in save_env_before_alias(). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-02test-lib: limit the output of the yes utilityJohannes Schindelin1-2/+4
On Windows, there is no SIGPIPE. A consequence of this is that the upstream process of a pipe does not notice the death of the downstream process until the pipe buffer is full and writing more data returns an error. This behavior is the reason for an annoying delay during the execution of t7610-mergetool.sh: There are a number of test cases where 'yes' is invoked upstream. Since the utility is basically an endless loop it runs, on Windows, until the pipe buffer is full. This does take a few seconds. The test suite has its own implementation of 'yes'. Modify it to produce only a limited amount of output that is sufficient for the test suite. The amount chosen should be sufficiently high for any test case, assuming that future test cases will not exaggerate their demands of input from an upstream 'yes' invocation. [j6t: commit message] Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01Getting closer to 2.7.1Junio C Hamano1-0/+9
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01Merge branch 'jk/list-tag-2.7-regression'Junio C Hamano7-56/+72
"git tag" started listing a tag "foo" as "tags/foo" when a branch named "foo" exists in the same repository; remove this unnecessary disambiguation, which is a regression introduced in v2.7.0. * jk/list-tag-2.7-regression: tag: do not show ambiguous tag names as "tags/foo" t6300: use test_atom for some un-modern tests
2016-02-01Merge branch 'ew/svn-1.9.0-auth'Junio C Hamano1-2/+6
* ew/svn-1.9.0-auth: git-svn: fix auth parameter handling on SVN 1.9.0+
2016-02-01push: fix ref status reporting for --force-with-leaseAndrew Wheeler2-12/+18
The --force--with-lease push option leads to less detailed status information than --force. In particular, the output indicates that a reference was fast-forwarded, even when it was force-updated. Modify the --force-with-lease ref status logic to leverage the --force ref status logic when the "lease" conditions are met. Also, enhance tests to validate output status reporting. Signed-off-by: Andrew Wheeler <awheeler@motorola.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01apply, ls-files: simplify "-z" parsingJeff King2-24/+6
As a short option, we cannot handle negation. Thus a callback handling "unset" is overkill, and we can just use OPT_SET_INT instead to handle setting the option. Anybody who adds "--nul" synonym to this later would need to be careful not to break "--no-nul", which should mean that lines are terminated with LF at the end. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01checkout-index: disallow "--no-stage" optionJeff King1-3/+3
We do not really expect people to use "--no-stage", but if they do, git currently segfaults. We could instead have it undo the effects of a previous "--stage", but this gets tricky around the "to_tempfile" flag. We cannot simply reset it to 0, because we don't know if it was set by a previous "--stage=all" or an explicit "--temp" option. We could solve this by setting a flag and resolving to_tempfile later, but it's not worth the effort. Nobody actually wants to use "--no-stage"; we are just trying to fix a potential segfault here. While we're in the area, let's improve the user-facing messages for this option. The error string should be translatable, and we should give some hint in the "-h" output about what can go in the argument field. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01checkout-index: handle "--no-index" optionJeff King1-24/+10
The parsing of "--index" is done in a callback, but it does not handle an "unset" option. We don't necessarily expect anyone to use this, but the current behavior is to treat it exactly like "--index", which would probably be surprising. Instead, let's just turn it into an OPT_BOOL, and handle it after we're done parsing. This makes "--no-index" just work (it cancels a previous "--index"). As a bonus, this makes the logic easier to follow. The old code opened the index during the option parsing, leaving the reader to wonder if there was some timing issue (there isn't; none of the other options care that we've opened it). And then if we found that "--prefix" had been given, we had to rollback the index. Now we can simply avoid opening it in the first place. Note that it might make more sense for checkout-index to complain when "--index --prefix=foo" is given (rather than silently ignoring "--index"), but since it has been that way since 415e96c ([PATCH] Implement git-checkout-cache -u to update stat information in the cache., 2005-05-15), it's safer to leave it as-is. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01checkout-index: handle "--no-prefix" optionJeff King1-12/+6
We use a custom callback to parse "--prefix", but it does not handle the "unset" case. As a result, passing "--no-prefix" will cause a segfault. We can fix this by switching it to an OPT_STRING, which makes "--no-prefix" counteract a previous "--prefix". Note that this assigns NULL, so we bump our default-case initialization to lower in the main function. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01checkout-index: simplify "-z" option parsingJeff King1-10/+2
Now that we act as a simple bool, there's no need to use a custom callback. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01give "nbuf" strbuf a more meaningful nameJeff King5-29/+30
It's a common pattern in our code to read paths from stdin, separated either by newlines or NULs, and unquote as necessary. In each of these five cases we use "nbuf" to temporarily store the unquoted value. Let's give it the more meaningful name "unquoted", which makes it easier to understand the purpose of the variable. While we're at it, let's also static-initialize all of our strbufs. It's not wrong to call strbuf_init, but it increases the cognitive load on the reader, who might wonder "do we sometimes avoid initializing them? why?". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01object name: introduce '^{/!-<negative pattern>}' notationWill Palmer3-11/+51
To name a commit, you can now use the :/!-<negative pattern> regex style, and consequentially, say $ git rev-parse HEAD^{/!-foo} and it will return the hash of the first commit reachable from HEAD, whose commit message does not contain "foo". This is the opposite of the existing <rev>^{/<pattern>} syntax. The specific use-case this is intended for is to perform an operation, excluding the most-recent commits containing a particular marker. For example, if you tend to make "work in progress" commits, with messages beginning with "WIP", you work, then it could be useful to diff against "the most recent commit which was not a WIP commit". That sort of thing now possible, via commands such as: $ git diff @^{/!-^WIP} The leader '/!-', rather than simply '/!', to denote a negative match, is chosen to leave room for additional modifiers in the future. Signed-off-by: Will Palmer <wmpalmer@gmail.com> Signed-off-by: Stephen P. Smith <ischis2@cox.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01transport: drop support for git-over-rsyncJeff King10-395/+10
The git-over-rsync protocol is inefficient and broken, and has been for a long time. It transfers way more objects than it needs (grabbing all of the remote's "objects/", regardless of which objects we need). It does its own ad-hoc parsing of loose and packed refs from the remote, but doesn't properly override packed refs with loose ones, leading to garbage results (e.g., expecting the other side to have an object pointed to by a stale packed-refs entry, or complaining that the other side has two copies of the refs[1]). This latter breakage means that nobody could have successfully pulled from a moderately active repository since cd547b4 (fetch/push: readd rsync support, 2007-10-01). We never made an official deprecation notice in the release notes for git's rsync protocol, but the tutorial has marked it as such since 914328a (Update tutorial., 2005-08-30). And on the mailing list as far back as Oct 2005, we can find Junio mentioning it as having "been deprecated for quite some time."[2,3,4]. So it was old news then; cogito had deprecated the transport in July of 2005[5] (though it did come back briefly when Linus broke git-http-pull!). Of course some people professed their love of rsync through 2006, but Linus clarified in his usual gentle manner[6]: > Thanks! This is why I still use rsync, even though > everybody and their mother tells me "Linus says rsync is > deprecated." No. You're using rsync because you're actively doing something _wrong_. The deprecation sentiment was reinforced in 2008, with a mention that cloning via rsync is broken (with no fix)[7]. Even the commit porting rsync over to C from shell (cd547b4) lists it as deprecated! So between the 10 years of informal warnings, and the fact that it has been severely broken since 2007, it's probably safe to simply remove it without further deprecation warnings. [1] http://article.gmane.org/gmane.comp.version-control.git/285101 [2] http://article.gmane.org/gmane.comp.version-control.git/10093 [3] http://article.gmane.org/gmane.comp.version-control.git/17734 [4] http://article.gmane.org/gmane.comp.version-control.git/18911 [5] http://article.gmane.org/gmane.comp.version-control.git/5617 [6] http://article.gmane.org/gmane.comp.version-control.git/19354 [7] http://article.gmane.org/gmane.comp.version-control.git/103635 Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-29stripspace: call U+0020 a "space" instead of a "blank"Alex Henrie1-1/+1
I couldn't find any other examples of people referring to this character as a "blank". Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-29convert: treat an empty string for clean/smudge filters as "cat"Lars Schneider2-1/+17
Once a lower-priority configuration file defines a clean or smudge filter, there is no convenient way to override it to produce as-is output. Even though the configuration mechanism implements "the last one wins" semantics, you cannot set them to an empty string and expect them to work, as apply_filter() would try to run the empty string as an external command and fail. The conversion is not done, but the function would still report a failure to convert. Even though resetting the variable to "cat" (i.e. pass the data back as-is and report success) is an obvious and a viable way to solve this, it is wasteful to spawn an external process just as a workaround. Instead, teach apply_filter() to treat an empty string as a no-op filter that always returns successfully its input as-is without conversion. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28Fourth batch for 2.8.cycleJunio C Hamano1-1/+24
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28Merge branch 'jk/shortlog'Junio C Hamano2-103/+105
"git shortlog" used to accumulate various pieces of information regardless of what was asked to be shown in the final output. It has been optimized by noticing what need not to be collected (e.g. there is no need to collect the log messages when showing only the number of changes). * jk/shortlog: shortlog: don't warn on empty author shortlog: optimize out useless string list shortlog: optimize out useless "<none>" normalization shortlog: optimize "--summary" mode shortlog: replace hand-parsing of author with pretty-printer shortlog: use strbufs to read from stdin shortlog: match both "Author:" and "author" on stdin
2016-01-28Merge branch 'jc/strbuf-getline'Junio C Hamano41-116/+150
The preliminary clean-up for jc/peace-with-crlf topic. * jc/strbuf-getline: strbuf: give strbuf_getline() to the "most text friendly" variant checkout-index: there are only two possible line terminations update-index: there are only two possible line terminations check-ignore: there are only two possible line terminations check-attr: there are only two possible line terminations mktree: there are only two possible line terminations strbuf: introduce strbuf_getline_{lf,nul}() strbuf: make strbuf_getline_crlf() global strbuf: miniscule style fix
2016-01-28Merge branch 'js/msys2'Junio C Hamano7-12/+77
Beginning of the upstreaming process of Git for Windows effort. * js/msys2: mingw: uglify (a, 0) definitions to shut up warnings mingw: squash another warning about a cast mingw: avoid warnings when casting HANDLEs to int mingw: avoid redefining S_* constants compat/winansi: support compiling with MSys2 compat/mingw: support MSys2-based MinGW build nedmalloc: allow compiling with MSys2's compiler config.mak.uname: supporting 64-bit MSys2 config.mak.uname: support MSys2
2016-01-28Merge branch 'tk/interpret-trailers-in-place'Junio C Hamano5-20/+129
"interpret-trailers" has been taught to optionally update a file in place, instead of always writing the result to the standard output. * tk/interpret-trailers-in-place: interpret-trailers: add option for in-place editing trailer: allow to write to files other than stdout
2016-01-28Merge branch 'jk/sanity'Junio C Hamano1-5/+13
The description for SANITY prerequisite the test suite uses has been clarified both in the comment and in the implementation. * jk/sanity: test-lib: clarify and tighten SANITY
2016-01-28Merge branch 'jk/filter-branch-no-index'Junio C Hamano2-1/+9
A recent optimization to filter-branch in v2.7.0 introduced a regression when --prune-empty filter is used, which has been corrected. * jk/filter-branch-no-index: filter-branch: resolve $commit^{tree} in no-index case
2016-01-28pass transport verbosity down to git_connectEric Wong1-5/+6
While working in connect.c to perform non-blocking connections, I noticed calling "git fetch -v" was not causing the progress messages inside git_tcp_connect_sock to be emitted as I expected. Looking at history, it seems connect_setup has never been called with the verbose parameter. Since transport already has a "verbose" field, use that field instead of another parameter in connect_setup. Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: do not bother to test funny file namesJohannes Schindelin8-5/+9
MSYS2 actually allows to create files or directories whose names contain tabs, newlines or colors, even if plain Win32 API cannot access them. As we are using an MSYS2 bash to run the tests, such files or directories are created successfully, but Git itself has no chance to work with them because it is a regular Windows program, hence limited by the Win32 API. With this change, on Windows otherwise failing tests in t3300-funny-names.sh, t3600-rm.sh, t3703-add-magic-pathspec.sh, t3902-quoted.sh, t4016-diff-quote.sh, t4135-apply-weird-filenames.sh, t9200-git-cvsexportcommit.sh, and t9903-bash-prompt.sh are skipped. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: skip a test in t9130 that cannot pass on WindowsJohannes Schindelin1-1/+1
On Windows, Git itself has no clue about POSIX paths, but its shell scripts do. In this instance, we get mixed paths as a result, and when comparing the path of the author file, we get a mismatch that is entirely due to the POSIX path vs Windows path clash. Let's just skip this test so that t9130-git-svn-authors-file.sh passes in Git for Windows' SDK. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: handle the missing POSIXPERM prereq in t9124Johannes Schindelin1-6/+10
On Windows, the permission system works completely differently than expected by some of the tests. So let's make sure that we do not test POSIX functionality on Windows. This lets t9124-git-svn-dcommit-auto-props.sh pass in Git for Windows' SDK. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: avoid illegal filename in t9118Johannes Schindelin1-3/+9
On Windows' file systems, file names with trailing dots are forbidden. The POSIX emulation layer used by Git for Windows' Subversion emulates those file names, therefore the test adding the file would actually succeed, but when we would ask git.exe (which does not leverage the POSIX emulation layer) to check out the tree, it would fail. Let's just guard the test using a filename that is illegal on Windows by the MINGW prereq. This lets t9118-git-svn-funky-branch-names.sh pass in Git for Windows' SDK. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: mark t9100's test cases with appropriate prereqsJohannes Schindelin1-9/+9
Many a test requires either POSIXPERM (to change the executable bit) or SYMLINKS, and neither are available on Windows. This lets t9100-git-svn-basic.sh pass in Git for Windows' SDK. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28t0008: avoid absolute pathPat Thoyts1-1/+1
The colon is used by check-ignore to separate paths from other output values. If we use an absolute path, however, on Windows it will be converted into a Windows path that very much contains a colon. It is actually not at all necessary to make the path of the global excludes absolute, so let's just not even do that. Based on suggestions by Karsten Blees and Junio Hamano. Suggested-by: Karsten Blees <karsten.blees@gmail.com> Signed-off-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>
2016-01-28mingw: work around pwd issues in the testsJohannes Schindelin4-16/+16
In Git for Windows' SDK, the tests are run using a Bash that relies on the POSIX emulation layer MSYS2 (itself a friendly fork of Cygwin). As such, paths in tests can be POSIX paths. As soon as those paths are passed to git.exe (which does *not* use the POSIX emulation layer), those paths are converted into Windows paths, though. This happens for command-line parameters, but not when reading, say, config variables. To help with that, the `pwd` command is overridden to return the Windows path of the current working directory when testing Git on Windows. However, when talking to anything using the POSIX emulation layer, it is really much better to use POSIX paths because Windows paths contain a colon after the drive letter that will easily be mistaken for the common separator in path lists. So let's just use the $PWD variable when the POSIX path is needed. This lets t7800-difftool.sh, t9400-git-cvsserver-server.sh, t9402-git-cvsserver-refs.sh and t9401-git-cvsserver-crlf.sh pass in Git for Windows' SDK. Note: the cvsserver tests require not only the `cvs` package (install it into Git for Windows' SDK via `pacman -S cvs`) but also the Perl SQLite bindings (install them into Git for Windows' SDK via `cpan DBD::SQLite`). This patch is based on earlier work by 마누엘 and Karsten Blees. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: fix t9700's assumption about directory separatorsJohannes Schindelin1-1/+1
This test assumed that there is only one directory separator (the forward slash), not two equivalent directory separators. However, on Windows, the back slash and the forward slash *are* equivalent. Let's paper over this issue by converting the backward slashes to forward ones in the test that fails with MSYS2 otherwise. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28mingw: skip test in t1508 that fails due to path conversionJohannes Schindelin1-1/+5
In Git for Windows, the MSYS2 POSIX emulation layer used by the Bash converts command-line arguments that looks like they refer to a POSIX path containing a file list (i.e. @<absolute-path>) into a Windows path equivalent when calling non-MSYS2 executables, such as git.exe. Let's just skip the test that uses the parameter `@/at-test` that confuses the MSYS2 runtime. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28tests: turn off git-daemon tests if FIFOs are not availableJohannes Schindelin1-0/+5
The Git daemon tests create a FIFO first thing and will hang if said FIFO is not available. This is a problem with Git for Windows, where `mkfifo` is an MSYS2 program that leverages MSYS2's POSIX emulation layer, but `git-daemon.exe` is a MINGW program that has not the first clue about that POSIX emulation layer and therefore blinks twice when it sees MSYS2's emulated FIFOs and then just stares into space. This lets t5570-git-daemon.sh and t5811-proto-disable-git.sh pass. Signed-off-by: Stepan Kasal <kasal@ucw.cz> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27git: simplify environment save/restore logicJunio C Hamano1-14/+13
The only code that cares about the value of the global variable saved_env_before_alias after the previous fix is handle_builtin() that turns into a glorified no-op when the variable is true, so the logic could safely be lifted to its caller, i.e. the caller can refrain from calling it when the variable is set. This variable tells us if save_env_before_alias() was called (with or without matching restore_env()), but the sole caller of the function, handle_alias(), always calls it as the first thing, so we can consider that the variable essentially keeps track of the fact that handle_alias() has ever been called. It turns out that handle_builtin() and handle_alias() are called only from one function in a way that the value of the variable matters, which is run_argv(), and it already keeps track of the fact that it already called handle_alias(). So we can simplify the whole thing by: - Change handle_builtin() to always make a direct call to the builtin implementation it finds, and make sure the caller refrains from calling it if handle_alias() has ever been called; - Remove saved_env_before_alias variable, and instead use the local "done_alias" variable maintained inside run_argv() to make the same decision. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27git: protect against unbalanced calls to {save,restore}_env()Junio C Hamano1-0/+7
We made sure that save_env_before_alias() does not skip saving the environment when asked to (which led to use-after-free of orig_cwd in restore_env() in the buggy version) with the previous step. Protect against future breakage where somebody adds new callers of these functions in an unbalanced fashion. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27git: remove an early return from save_env_before_alias()Junio C Hamano2-2/+52
When help.autocorrect is in effect, an attempt to auto-execute an uniquely corrected result of a misspelt alias will result in an irrelevant error message. The codepath that causes this calls save_env_before_alias() and restore_env() in handle_alias(), and that happens twice. A global variable orig_cwd is allocated to hold the return value of getcwd() in save_env_before_alias(), which is then used in restore_env() to go back to that directory and finally free(3)'d there. However, save_env_before_alias() is not prepared to be called twice. It returns early when it knows it has already been called, leaving orig_cwd undefined, which is then checked in the second call to restore_env(), and by that time, the memory that used to hold the contents of orig_cwd is either freed or reused to hold something else, and this is fed to chdir(2), causing it to fail. Even if it did not fail (i.e. reading of the already free'd piece of memory yielded a directory path that we can chdir(2) to), it then gets free(3)'d. Fix this by making sure save_env() does do the saving when called. While at it, add a minimal test for help.autocorrect facility. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27mingw: disable mkfifo-based testsJohannes Schindelin1-1/+1
MSYS2 (the POSIX emulation layer used by Git for Windows' Bash) actually has a working mkfifo. The only problem is that it is only emulating named pipes through the MSYS2 runtime; The Win32 API has no idea about named pipes, hence the Git executable cannot access those pipes either. The symptom is that Git fails with a '<name>: No such file or directory' because MSYS2 emulates named pipes through special-crafted '.lnk' files. The solution is to tell the test suite explicitly that we cannot use named pipes when we want to test on Windows. This lets t4056-diff-order.sh, t9010-svn-fe.sh and t9300-fast-import.sh pass. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>