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2015-02-26Git::SVN::*: avoid premature FileHandle closureKyle J. McKay
Since b19138b (git-svn: Make it incrementally faster by minimizing temp files, v1.6.0), git-svn has been using the Git.pm temp_acquire and temp_release mechanism to avoid unnecessary temp file churn and provide a speed boost. However, that change introduced a call to temp_acquire inside the Git::SVN::Fetcher::close_file function for an 'svn_hash' temp file. Because an SVN::Pool is active at the time this function is called, if the Git::temp_acquire function ends up actually creating a new FileHandle for the temp file (which it will the first time it's called with the name 'svn_hash') that FileHandle will end up in the SVN::Pool and should that pool have SVN::Pool::clear called on it that FileHandle will be closed out from under Git::temp_acquire. Since the only call site to Git::temp_acquire with the name 'svn_hash' is inside the close_file function, if an 'svn_hash' temp file is ever created its FileHandle is guaranteed to be created in the active SVN::Pool. This has not been a problem in the past because the SVN::Pool was not being cleared. However, since dfa72fdb (git-svn: reload RA every log-window-size, v2.2.0) the pool has been getting cleared periodically at which point the FileHandle for the 'svn_hash' temp file gets closed. Any subsequent calls to Git::temp_acquire for 'svn_hash', however, succeed without creating/opening a new temporary file since it still has the now invalid FileHandle in its cache. Callers that then attempt to use that FileHandle fail with an error. We avoid this problem by making sure the 'svn_hash' temp file is created in the same place the 'svn_delta_...' and 'git_blob_...' temp files are (and then temp_release'd) so that it can be safely used inside the close_file function without having its FileHandle end up in an SVN::Pool that gets cleared. Additionally the Git.pm cat_blob function creates a bidirectional pipe FileHandle using the IPC::Open2::open2 function. If that handle is created too late, it also gets caught up in the SVN::Pool and incorrectly closed by the SVN::Pool::clear call. But this only seems to happen with more recent versions of Perl and svn. To avoid this problem we add an explicit call to _open_cat_blob_if_needed before the first call to SVN::Pool->new_default to make sure the open2 handle does not end up in the SVN::Pool. Signed-off-by: Kyle J. McKay <mackyle@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-26git-svn: fix localtime=true on non-glibc environmentsRyuichi Kokubo
git svn uses POSIX::strftime('%s', $sec, $min, ...) to make unix epoch time. But lowercase %s formatting character is a GNU extention. This causes problem in git svn fetch --localtime on non-glibc systems, such as msys or cygwin. Using Time::Local::timelocal($sec, $min, ...) fixes it. Signed-off-by: Ryuichi Kokubo <ryu1kkb@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net> Notes: lowercase %s format character in strftime is a GNU extension and not widely supported. POSIX::strftime affected by underlying crt's strftime because POSIX::strftime just calls crt's one. Time::Local is good function to replace POSIX::strftime because it's a perl core module function. Document about Time::Local. http://perldoc.perl.org/Time/Local.html These are specifications of strftime. The GNU C Library Reference Manual. http://www.gnu.org/software/libc/manual/html_node/Formatting-Calendar-Time.html perl POSIX module's strftime document. It does not have '%s'. http://perldoc.perl.org/POSIX.html strftime document of Microsort Windows C Run-Time library. https://msdn.microsoft.com/en-us/library/fe06s4ak.aspx The Open Group's old specification does not have '%s' too. http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html On my environment, following problems happened. - msys : git svn fetch does not progress at all with perl.exe consuming CPU. - cygwin : git svn fetch progresses but time stamp information is dropped. Every commits have unix epoch timestamp. I would like to thank git developer and contibutors. git helps me so much everyday. Thank you. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-26Documentation/git-clean.txt: document that -f may need to be given twiceMikko Rapeli
This is needed in build automation where the tree really needs to be reset to known state. Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-24Git 2.3.1v2.3.1Junio C Hamano
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-24Merge branch 'ak/add-i-empty-candidates' into maintJunio C Hamano
The interactive "show a list and let the user choose from it" interface "add -i" used showed and prompted to the user even when the candidate list was empty, against which the only "choice" the user could have made was to choose nothing. * ak/add-i-empty-candidates: add -i: return from list_and_choose if there is no candidate
2015-02-24Merge branch 'jc/apply-ws-fix-expands' into maintJunio C Hamano
"git apply --whitespace=fix" used to under-allocate the memory when the fix resulted in a longer text than the original patch. * jc/apply-ws-fix-expands: apply: count the size of postimage correctly apply: make update_pre_post_images() sanity check the given postlen apply.c: typofix
2015-02-24Merge branch 'jc/doc-log-rev-list-options' into maintJunio C Hamano
"git log --help" used to show rev-list options that are irrelevant to the "log" command. * jc/doc-log-rev-list-options: Documentation: what does "git log --indexed-objects" even mean?
2015-02-24Merge branch 'mg/commit-author-no-match-malformed-message' into maintJunio C Hamano
The error message from "git commit", when a non-existing author name was given as value to the "--author=" parameter, has been reworded to avoid misunderstanding. * mg/commit-author-no-match-malformed-message: commit: reword --author error message
2015-02-24Merge branch 'jk/dumb-http-idx-fetch-fix' into maintJunio C Hamano
A broken pack .idx file in the receiving repository prevented the dumb http transport from fetching a good copy of it from the other side. * jk/dumb-http-idx-fetch-fix: dumb-http: do not pass NULL path to parse_pack_index
2015-02-24Merge branch 'jc/diff-format-doc' into maintJunio C Hamano
The documentation incorrectly said that C(opy) and R(ename) are the only ones that can be followed by the score number in the output in the --raw format. * jc/diff-format-doc: diff-format doc: a score can follow M for rewrite
2015-02-24Merge branch 'jk/remote-curl-an-array-in-struct-cannot-be-null' into maintJunio C Hamano
Fix a misspelled conditional that is always true. * jk/remote-curl-an-array-in-struct-cannot-be-null: do not check truth value of flex arrays
2015-02-24Merge branch 'jk/status-read-branch-name-fix' into maintJunio C Hamano
Code to read branch name from various files in .git/ directory would have misbehaved if the code to write them left an empty file. * jk/status-read-branch-name-fix: read_and_strip_branch: fix typo'd address-of operator
2015-02-24Merge branch 'mg/push-repo-option-doc' into maintJunio C Hamano
The "git push" documentation made the "--repo=<there>" option easily misunderstood. * mg/push-repo-option-doc: git-push.txt: document the behavior of --repo
2015-02-24Merge branch 'bc/http-fallback-to-password-after-krb-fails' into maintJunio C Hamano
After attempting and failing a password-less authentication (e.g. kerberos), libcURL refuses to fall back to password based Basic authentication without a bit of help/encouragement. * bc/http-fallback-to-password-after-krb-fails: remote-curl: fall back to Basic auth if Negotiate fails
2015-02-24Merge branch 'dk/format-patch-ignore-diff-submodule' into maintJunio C Hamano
Setting diff.submodule to 'log' made "git format-patch" produce broken patches. * dk/format-patch-ignore-diff-submodule: format-patch: ignore diff.submodule setting t4255: test am submodule with diff.submodule
2015-02-24Merge branch 'jn/rerere-fail-on-auto-update-failure' into maintJunio C Hamano
"git rerere" (invoked internally from many mergy operations) did not correctly signal errors when told to update the working tree files and failed to do so for whatever reason. * jn/rerere-fail-on-auto-update-failure: rerere: error out on autoupdate failure
2015-02-24Merge branch 'jk/blame-commit-label' into maintJunio C Hamano
"git blame HEAD -- missing" failed to correctly say "HEAD" when it tried to say "No such path 'missing' in HEAD". * jk/blame-commit-label: blame.c: fix garbled error message use xstrdup_or_null to replace ternary conditionals builtin/commit.c: use xstrdup_or_null instead of envdup builtin/apply.c: use xstrdup_or_null instead of null_strdup git-compat-util: add xstrdup_or_null helper
2015-02-23test_ln_s_add: refresh stat info of fake symbolic linksJohannes Sixt
We have a helper function test_ln_s_add that inserts a symbolic link into the index even if the file system does not support symbolic links. There is a small flaw in the emulation path: the added entry does not pick up stat information of the fake symbolic link from the file system, as a consequence, the index is not exactly the same as for the "regular" path (where symbolic links are available). To fix this, just call git update-index again. This flaw was revealed by the earlier change that tightened compare_diff_raw(), because a test case in t4008 depends on the correctly updated index. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-22git-compat-util.h: remove redundant codeRamsay Jones
Since commit 3a0a3a89 ("git-compat-util.h: don't define _XOPEN_SOURCE on cygwin", 23-11-2014) removed the definition of _XOPEN_SOURCE on cygwin, the code within a pre-processor conditional further down the file became redundant. Remove the redundant code. This effectively reverts commit 41b20017 ("Fix an "implicit function definition" warning", 03-03-2007). Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-22sha1_name: use strlcpy() to copy stringsRené Scharfe
Use strlcpy() instead of calling strncpy() and then setting the last byte of the target buffer to NUL explicitly. This shortens and simplifies the code a bit. Signed-of-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-22pretty: use starts_with() to check for a prefixRené Scharfe
Simplify the code and avoid duplication by using starts_with() instead of strlen() and strncmp() to check if a line starts with "encoding ". Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-22for-each-ref: use skip_prefix() to avoid duplicate string comparisonRené Scharfe
Use skip_prefix() to get the part after "color:" (if present) and only compare it with "reset" instead of comparing the whole string again. This gets rid of the duplicate "color:" part of the string constant. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-22connect: use strcmp() for string comparisonRené Scharfe
Get rid of magic string length constants and simply compare the strings using strcmp(). This makes the intent of the code a bit clearer. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-20Documentation/git-am.txt: mention mailinfo.scissors config variableMatthieu Moy
It was already documented, but the user had to follow the link to git-mailinfo.txt to find it. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-20Documentation/config.txt: document mailinfo.scissorsMatthieu Moy
The variable was documented in git-mailinfo.txt, but not in config.txt. The detailed documentation is still the one of --scissors in git-mailinfo.txt, but we give enough information here to let the user understand what it is about, and to make it easy to find it (e.g. searching ">8" and "8<" finds it). Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-18Git.pm: two minor typo fixesAlexander Kuleshov
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17daemon: use callback to build interpolated pathRené Scharfe
Provide a callback function for strbuf_expand() instead of using the helper strbuf_expand_dict_cb(). While the resulting code is longer, it only looks up the canonical hostname and IP address if at least one of the placeholders %CH and %IP are used with --interpolated-path. Use a struct for passing the directory to the callback function instead of passing it directly to avoid having to cast away its const qualifier. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17daemon: look up client-supplied hostname lazilyRené Scharfe
Look up canonical hostname and IP address using getaddrinfo(3) or gethostbyname(3) only if --interpolated-path or --access-hook were specified. Do that by introducing getter functions for canon_hostname and ip_address and using them for all read accesses. These wrappers call the new helper lookup_hostname(), which sets the variables only at its first call. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17daemon: sanitize incoming virtual hostnameJeff King
We use the daemon_avoid_alias function to make sure that the pathname the user gives us is sane. However, after applying that check, we might then interpolate the path using a string given by the server admin, but which may contain more untrusted data from the client. We should be sure to sanitize this data, as well. We cannot use daemon_avoid_alias here, as it is more strict than we need in requiring a leading '/'. At the same time, we can be much more strict here. We are interpreting a hostname, which should not contain slashes or excessive runs of dots, as those things are not allowed in DNS names. Note that in addition to cleansing the hostname field, we must check the "canonical hostname" (%CH) as well as the port (%P), which we take as a raw string. For the canonical hostname, this comes from an actual DNS lookup on the accessed IP, which makes it a much less likely vector for problems. But it does not hurt to sanitize it in the same way. Unfortunately we cannot test this case easily, as it would involve a custom hostname lookup. We do not need to check %IP, as it comes straight from inet_ntop, so must have a sane form. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17t5570: test git-daemon's --interpolated-path optionJeff King
We did not test this at all; let's just give a basic sanity check that we can find a path based on virtual hosting, and that the downcase canonicalization works. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17git_connect: let user override virtual-host we send to daemonJeff King
When we connect to a git-daemon at a given host and port, we actually send the string "localhost:9418" to the other side, which allows it to do virtual-hosting lookups. For testing and debugging, we'd like to be able to send arbitrary strings, rather than the hostname we actually connected to. Using "insteadOf" config does not work for this purpose, as the hostname determination happens at a very low level, right before we feed the hostname to our lookup routines. You could use /etc/hosts or similar to get around this, but we cannot do that portably from our test suite. Instead, this patch provides an environment variable that can be used to send an arbitrary string. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17read-cache.c: free cache entry when refreshing failsStefan Beller
This fixes a memory leak when building the cache entries as refresh_cache_entry may decide to return NULL, but it does not free the cache entry structure which was passed in as an argument. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-16git-send-email.perl: support no- prefix with older GetOptionsKyle J. McKay
Only Perl version 5.8.0 or later is required, but that comes with an older Getopt::Long (2.32) that does not support the 'no-' prefix. Support for that was added in Getopt::Long version 2.33. Since the help only mentions the 'no-' prefix and not the 'no' prefix, add explicit support for the 'no-' prefix to support older GetOptions versions. Reported-by: Tom G. Christensen <tgc@statsbiblioteket.dk> Signed-off-by: Kyle J. McKay <mackyle@gmail.com> Tested-by: Tom G. Christensen <tgc@statsbiblioteket.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15test-lib.sh: set prerequisite SANITY by testing what we really needTorsten Bögershausen
What we wanted out of the SANITY precondition is that the filesystem behaves sensibly with permission bits settings. - You should not be able to remove a file in a read-only directory, - You should not be able to tell if a file in a directory exists if the directory lacks read or execute permission bits. We used to cheat by approximating that condition with "is the / writable?" test and/or "are we running as root?" test. Neither test is sufficient or appropriate in environments like Cygwin. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15t4008: modernise styleJunio C Hamano
Update this ancient test script to a more modern style in which the expected result is prepared inside the body of the test that uses it. Also, instead of using $tree, a shell variable, throughout the test script, create a tag that points at it, to make it easier to manually debug the test script in its trash directory. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15t/diff-lib: check exact object names in compare_diff_rawJunio C Hamano
The "sanitize" helper wanted to strip the similarity and dissimilarity scores when making comparison, but it was stripping away the object names as well. While we do not want to require the exact object names the tests expect to be maintained, as it would be seen as an extra burden, this would have prevented us catching a silly bug such as showing non 0{40} object name on the preimage side of an addition or on the postimage side of a deletion, because all [0-9a-f]{40} strings were considered equally OK. In the longer term, when a test only wants to see the status of the change without having to worry about object names, it should be rewritten not to inspect the raw format. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15tests: do not borrow from COPYING and README from the real sourceJunio C Hamano
These two files have been modified since the tests started using as test input, making the exact object names they expect to be different from what actually happens in the trash repository they use to run tests. Instead, take a snapshot of these two files and keep them in t/diff-lib/ so that we can update the real ones without having to worry about breaking tests. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15t4010: correct expected object namesJunio C Hamano
The output the test expects is bogus. It was left unnoticed only because compare_diff_raw, which only cares about the add/delete/rename/copy was used to check the result. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15t9300: correct expected object namesJunio C Hamano
The output the test #36 expects is bogus. There are no blob objects whose names are 36a590... or 046d037... when this test was run. It was left unnoticed only because compare_diff_raw, which only cares about the add/delete/rename/copy was used to check the result. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-15t4008: correct stale commentsJunio C Hamano
A complete rewrite of a single file was originally designed to be expressed as a deletion immediately followed by a creation of the same file, and the comments in the test updated here were written to reflect that design decision made in f345b0a0 (Add -B flag to diff-* brothers., 2005-05-30). However, we later realized that a complete rewrite is merely how a textual diff should be represented at 366175ef (Rework -B output., 2005-06-19), and updated the actual tests. But we forgot to update the introductory text while doing so. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-13hex.c: reduce memory footprint of sha1_to_hex static buffersStefan Beller
41 bytes is the exact number of bytes needed for having the returned hex string represented. 50 seems to be an arbitrary number, such that there are no benefits from alignment to certain address boundaries. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-13do not include the same header twiceДилян Палаузов
A few files include the same header file directly more than once. As all these headers protect themselves against repeated inclusion by the "#ifndef FOO_H / #define FOO_H / ... / #endif" idiom, leave only the first inclusion and remove the later inclusion as a no-op clean-up. Signed-off-by: Дилян Палаузов <git-dpa@aegee.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-12transport-helper: fix typo in error message when --signed is not supportedMike Hommey
Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-11merge-file: correctly open files when in a subdirAleksander Boruch-Gruszecki
run_setup_gently() is called before merge-file. This may result in changing current working directory, which wasn't taken into account when opening a file for writing. Fix by prepending the passed prefix. Previous var is left so that error messages keep referring to the file from the user's working directory perspective. Signed-off-by: Aleksander Boruch-Gruszecki <aleksander.boruchgruszecki@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10apply: do not touch a file beyond a symbolic linkJunio C Hamano
Because Git tracks symbolic links as symbolic links, a path that has a symbolic link in its leading part (e.g. path/to/dir/file, where path/to/dir is a symbolic link to somewhere else, be it inside or outside the working tree) can never appear in a patch that validly applies, unless the same patch first removes the symbolic link to allow a directory to be created there. Detect and reject such a patch. Things to note: - Unfortunately, we cannot reuse the has_symlink_leading_path() from dir.c, as that is only about the working tree, but "git apply" can be told to apply the patch only to the index or to both the index and to the working tree. - We cannot directly use has_symlink_leading_path() even when we are applying only to the working tree, as an early patch of a valid input may remove a symbolic link path/to/dir and then a later patch of the input may create a path path/to/dir/file, but "git apply" first checks the input without touching either the index or the working tree. The leading symbolic link check must be done on the interim result we compute in-core (i.e. after the first patch, there is no path/to/dir symbolic link and it is perfectly valid to create path/to/dir/file). Similarly, when an input creates a symbolic link path/to/dir and then creates a file path/to/dir/file, we need to flag it as an error without actually creating path/to/dir symbolic link in the filesystem. Instead, for any patch in the input that leaves a path (i.e. a non deletion) in the result, we check all leading paths against the resulting tree that the patch would create by inspecting all the patches in the input and then the target of patch application (either the index or the working tree). This way, we catch a mischief or a mistake to add a symbolic link path/to/dir and a file path/to/dir/file at the same time, while allowing a valid patch that removes a symbolic link path/to/dir and then adds a file path/to/dir/file. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10apply: do not read from beyond a symbolic linkJunio C Hamano
We should reject a patch, whether it renames/copies dir/file to elsewhere with or without modificiation, or updates dir/file in place, if "dir/" part is actually a symbolic link to elsewhere, by making sure that the code to read the preimage does not read from a path that is beyond a symbolic link. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10apply: do not read from the filesystem under --indexJunio C Hamano
We currently read the preimage to apply a patch from the index only when the --cached option is given. Do so also when the command is running under the --index option. With --index, the index entry and the working tree file for a path that is involved in a patch must be identical, so this should not affect the result, but by reading from the index, we will get the protection to avoid reading an unintended path beyond a symbolic link automatically. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10apply: reject input that touches outside the working areaJunio C Hamano
By default, a patch that affects outside the working area (either a Git controlled working tree, or the current working directory when "git apply" is used as a replacement of GNU patch) is rejected as a mistake (or a mischief). Git itself does not create such a patch, unless the user bends over backwards and specifies a non-standard prefix to "git diff" and friends. When `git apply` is used as a "better GNU patch", the user can pass the `--unsafe-paths` option to override this safety check. This option has no effect when `--index` or `--cached` is in use. The new test was stolen from Jeff King with slight enhancements. Note that a few new tests for touching outside the working area by following a symbolic link are still expected to fail at this step, but will be fixed in later steps. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10fast-import: avoid running end_packfile recursivelyJeff King
When an import has finished, we run end_packfile() to finalize the data and move the packfile into place. If this process fails, we call die() and end up in our die_nicely() handler. Which unfortunately includes running end_packfile to save any progress we made. We enter the function again, and start operating on the pack_data struct while it is in an inconsistent state, leading to a segfault. One way to trigger this is to simply start two identical fast-imports at the same time. They will both create the same packfiles, which will then try to create identically named ".keep" files. One will win the race, and the other will die(), and end up with the segfault. Since 3c078b9, we already reset the pack_data pointer to NULL at the end of end_packfile. That covers the case of us calling die() right after end_packfile, before we have reinitialized the pack_data pointer. This new problem is quite similar, except that we are worried about calling die() _during_ end_packfile, not right after. Ideally we would simply set pack_data to NULL as soon as we enter the function, and operate on a copy of the pointer. Unfortunately, it is not so easy. pack_data is a global, and end_packfile calls into other functions which operate on the global directly. We would have to teach each of these to take an argument, and there is no guarantee that we would catch all of the spots. Instead, we can simply use a static flag to avoid recursively entering the function. This is a little less elegant, but it's short and fool-proof. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-10builtin/blame: destroy initialized commit_info onlyEric Sunshine
Since ea02ffa3 (mailmap: simplify map_user() interface, 2013-01-05), find_alignment() has been invoking commit_info_destroy() on an uninitialized auto 'struct commit_info' (when METAINFO_SHOWN is not set). commit_info_destroy() calls strbuf_release() for each 'commit_info' strbuf member, which randomly invokes free() on whatever random stack value happens to reside in strbuf.buf, thus leading to periodic crashes. Reported-by: Dilyan Palauzov <dilyan.palauzov@aegee.org> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>