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2009-07-23git branch: avoid unnecessary object lookupsLibravatar Linus Torvalds1-10/+14
They can be expensive in the cold-cache case, so don't bother looking up the commits for all branches unless we really need them for some reason. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-23git branch: fix performance problemLibravatar Linus Torvalds1-5/+5
'git branch' looks at _all_ the refs, and verifies them. Which means that during cold-cache situations with a slow disk (and lots of tags, for example) it can take several very annoying seconds (7.5s according to a report by Carlos R. Mafra). This avoids most of it by simply doing the filtering before looking up the commits, by using the "raw" version of for_each_ref. Reported-by: Carlos R. Mafra <crmafra2@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22do_one_ref(): null_sha1 check is not about broken refLibravatar Junio C Hamano1-2/+3
f8948e2 (remote prune: warn dangling symrefs, 2009-02-08) introduced a more dangerous variant of for_each_ref() family that skips the check for dangling refs, but it also made another unrelated check optional by mistake. The check to see if a ref points at 0{40} is not about brokenness, but is about a possible future plan to represent a deleted ref by writing 40 "0" in a loose ref when there is a stale version of the same ref already in .git/packed-refs, so that we can implement deletion of a ref without having to rewrite the packed refs file excluding the ref being deleted. This check has to live outside of the conditional. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22Trailing whitespace and no newline fixLibravatar SZEDER Gábor2-3/+20
If a patch adds a new line to the end of a file and this line ends with one trailing whitespace character and has no newline, then '--whitespace=fix' currently does not remove that trailing whitespace. This patch fixes this by removing the check for trailing whitespace at the end of the line at a hardcoded offset which does not take the eventual absence of newline into account. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22diff --cc: a lost line at the beginning of the file is shown incorrectlyLibravatar Junio C Hamano2-7/+93
When combine-diff inspected the diff from one parent to the merge result, it misinterpreted a header in the form @@ -l,k +0,0 @@. This hunk header means that K lines were removed from the beginning of the file, so the lost lines must be queued to the sline that represents the first line of the merge result, but we incremented our pointer incorrectly and ended up queuing it to the second line, which in turn made the lossage appear _after_ the first line. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22combine-diff.c: fix performance problem when folding common deleted linesLibravatar Junio C Hamano1-8/+5
For a deleted line in a patch with the parent we are looking at, the append_lost() function finds the same line among a run of lines that were deleted from the same location by patches from parents we previously checked. This is so that patches with two parents @@ -1,4 +1,3 @@ @@ -1,4 +1,3 @@ one one -two -two three three -quatro -fyra +four +four can be coalesced into this sequence, reusing one line that describes the removal of "two" for both parents. @@@ -1,4 -1,4 +1,3 @@@ one --two three - quatro -frya ++four While reading the second patch (that removes "two" and then "fyra"), after finding where removal of the "two" matches, we need to find existing removal of "fyra" (if exists) in the removal list, but the match has to happen after all the existing matches (in this case "two"). The code used a naïve O(n^2) algorithm to compute this by scanning the whole removal list over and over again. This patch remembers where the next scan should be started in the existing removal list to avoid this. Noticed by Linus Torvalds. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18checkout -f: deal with a D/F conflict entry correctlyLibravatar Junio C Hamano1-1/+1
When we switch branches with "checkout -f", unpack_trees() feeds two cache_entries to oneway_merge() function in its src[] array argument. The zeroth entry comes from the current index, and the first entry represents what the merge result should be, taken from the tree recorded in the commit we are switching to. When we have a blob (either regular file or a symlink) in the index and in the work tree at path "foo", and the switched-to tree has "foo/bar", i.e. "foo" becomes a directory, src[0] is obviously that blob currently registered at "foo". Even though we do not have anything at "foo" in the switched-to tree, src[1] is _not_ NULL in this case. The unpack_trees() machinery places a special marker df_conflict_entry to signal that no blob exists at "foo", but it will become a directory that may have somthing underneath it (namely "foo/bar"), so a usual 3-way merge can notice the situation. But oneway_merge() codepath failed to notice this and passed the special marker directly to merged_entry(). This happens to remove the "foo" in the end because the df_conflict_entry does not have any name (hence the "error" message) and its addition in add_index_entry() is rejected, but it is wrong. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-16sha1_name.c: avoid unnecessary strbuf_releaseLibravatar Brandon Casey1-2/+0
When we fall back to a standard for_each_reflog_ent() after failing to find the nth branch switch (or if we had a short reflog) with the call to for_each_recent_reflog_ent(), we do not need to free the memory allocated for our strbuf's since a strbuf_reset() will be performed in grab_nth_branch_switch() before assigning to the entry. Plus, the strbuf_release() negates the non-zero hint we initially gave to strbuf_init() just above these lines. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-16refs.c: release file descriptor on error returnLibravatar Brandon Casey1-1/+3
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-08Merge branch 'cb/maint-fetch-refspec-wo-dst' into maintLibravatar Junio C Hamano1-1/+1
* cb/maint-fetch-refspec-wo-dst: fetch: do not create ref from empty name
2009-07-08Merge branch 'cf/maint-remote-uploadpack-useconfig-fix' into maintLibravatar Junio C Hamano1-1/+1
* cf/maint-remote-uploadpack-useconfig-fix: git-remote: fix missing .uploadpack usage for show command
2009-07-08Documentation: update description of shell aliasesLibravatar Sitaram Chamarty1-1/+3
Aliases that invoke shell commands start from the top-level directory, but this was not documented. Signed-off-by: Sitaram Chamarty <sitaramc@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-01request-pull: really really disable pagerLibravatar Michal Marek1-3/+4
Earlier 476cc72 (request-pull: really disable pager, 2009-06-30) tried to use the correct environment variable to disable paging from multiple calls to "git log" and friends, but there was one extra call to "git log" that was not covered by the trick. Move the setting and exporting of GIT_PAGER much earlier in the script to cover everybody. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-30attr: plug minor memory leakLibravatar René Scharfe1-0/+2
Free the memory allocated for struct strbuf pathbuf when we're done. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-30request-pull: really disable pagerLibravatar Junio C Hamano1-2/+2
ff06c74 (Improve request-pull to handle non-rebased branches, 2007-05-01) attempted to disable pager when running subcommands in this script, but with a wrong variable. If GIT_PAGER is set, it takes precedence over PAGER. Noticed by Michal Marek. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-30Makes some cleanup/review in gittutorialLibravatar Thadeu Lima de Souza Cascardo1-12/+12
There are some different but little cleanup changes to fix some missing quotes, to fix what seemed to be an unended sentence, to reident a little paragraph with too large a sentence and fix a branch name that was referred to twice later by another name. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-30Makefile: git.o depends on library headersLibravatar Johannes Sixt1-1/+1
This dependency was not yet specified anywhere else. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-30git-submodule documentation: fix foreach exampleLibravatar Miklos Vajna2-2/+4
Backtick and apostrophe are asciidoc markup, so they should be escaped in order to get the expected result in the rendered manual page. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27gitweb/README: fix AliasMatch in exampleLibravatar Giuseppe Bilotta1-1/+9
When combining "dumb client" and human-friendly access by using the '.git' extension to switch between the two, make sure the AliasMatch covers the entire request. Without a full match, a request for http://git.example.com/project/shortlog/branch..gitsomething would result in a 404 because the server would try to access the the project 'project/shortlog/branch.' The solution is still not bulletproof, so document the possible failing case. Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Test grep --and/--or/--notLibravatar Thomas Rast1-0/+30
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Test git archive --remoteLibravatar Thomas Rast1-0/+4
Add a small test case for git archive --remote (and thus git-upload-archive), which so far went untested. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-25git-remote: fix missing .uploadpack usage for show commandLibravatar Chris Frey1-1/+1
For users pulling from machines with self compiled git installs, in non-PATH locations, they can set the config option remote.<name>.uploadpack to set the location of git-upload-pack. When using 'git remote show <name>', the remote HEAD check did not use the uploadpack configuration setting, and would not use the configured program. In builtin-remote.c, the config setting is already loaded with the call to remote_get(), so this patch passes that remote along to transport_get(). Signed-off-by: Chris Frey <cdfrey@foursquare.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-23fread does not return negative on errorLibravatar Roel Kluin1-1/+1
size_t res cannot be less than 0. fread returns 0 on error. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-22t3700-add: add a POSIXPERM prerequisite to a new testLibravatar Johannes Sixt1-1/+1
The new test does a 'chmod 0', which does not have the intended effect on Windows. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-22Merge branch 'sb/maint-1.6.0-add-config-fix' into maintLibravatar Junio C Hamano2-2/+15
* sb/maint-1.6.0-add-config-fix: add: allow configurations to be overriden by command line
2009-06-21GIT 1.6.3.3Libravatar Junio C Hamano3-2/+40
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-21Merge branch 'ak/maint-for-each-ref-no-lookup' into maintLibravatar Junio C Hamano1-9/+17
* ak/maint-for-each-ref-no-lookup: for-each-ref: Do not lookup objects when they will not be used
2009-06-21Merge branch 'rc/maint-http-local-slot-fix' into maintLibravatar Junio C Hamano2-0/+12
* rc/maint-http-local-slot-fix: http*: cleanup slot->local after fclose
2009-06-21Merge branch 'cb/maint-no-double-merge' into maintLibravatar Junio C Hamano2-1/+7
* cb/maint-no-double-merge: refuse to merge during a merge
2009-06-21Merge branch 'mn/maint-iconv-autoconf' into maintLibravatar Junio C Hamano1-0/+8
* mn/maint-iconv-autoconf: fix handling of iconv configuration options
2009-06-21Merge branch 'lt/maint-unsigned-left-shift' into maintLibravatar Junio C Hamano8-16/+12
* lt/maint-unsigned-left-shift: Fix big left-shifts of unsigned char
2009-06-21Merge branch 'pb/maint-1.6.2-userdiff-fix' into maintLibravatar Junio C Hamano2-7/+10
* pb/maint-1.6.2-userdiff-fix: upload-archive: fix infinite loop on Cygwin avoid exponential regex match for java and objc function names
2009-06-21attribute: whitespace set to true detects all errors known to gitLibravatar Junio C Hamano1-5/+7
That is what the documentation says, but the code pretends as if all the known whitespace error tokens were given. Among the whitespace error tokens, there is one kind that loosens the rule when set: cr-at-eol. Which means that whitespace error token that is set to true ignores a newly introduced CR at the end, which is inconsistent with the documentation. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-21.gitattributes: CR at the end of the line is an errorLibravatar Nanako Shiraishi1-1/+1
When a CR is accidentally added at the end of a C source file in the git project tree, "git diff --check" doesn't detect it as an error. $ echo abQ | tr Q '\015' >>fast-import.c $ git diff --check I think this is because the "whitespace" attribute is set to *.[ch] files without specifying what kind of errors are caught. It makes git "notice all types of errors" (as described in the documentation), but I think it is incorrectly setting cr-at-eol, too, and hides this error. Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-21t3505: fix abuse of test_expect_codeLibravatar Junio C Hamano1-5/+5
The test wanted to make sure that cherry-pick exits with status 1, but with the way it was placed after "git checkout master &&" meant that it could have misjudged success if checkout barfed with the same failure status. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-20Merge branch 'maint-1.6.2' into maintLibravatar Junio C Hamano3-7/+7
* maint-1.6.2: git-show-ref.txt: remove word and make consistent git-svn documentation: fix typo in 'rebase vs. pull/merge' section use xstrdup, not strdup in ll-merge.c
2009-06-20Merge branch 'maint-1.6.1' into maint-1.6.2Libravatar Junio C Hamano3-7/+7
* maint-1.6.1: git-show-ref.txt: remove word and make consistent git-svn documentation: fix typo in 'rebase vs. pull/merge' section use xstrdup, not strdup in ll-merge.c
2009-06-20Merge branch 'maint-1.6.0' into maint-1.6.1Libravatar Junio C Hamano3-7/+7
* maint-1.6.0: git-show-ref.txt: remove word and make consistent git-svn documentation: fix typo in 'rebase vs. pull/merge' section use xstrdup, not strdup in ll-merge.c
2009-06-20git-show-ref.txt: remove word and make consistentLibravatar Stephen Boyd1-2/+2
Under is better than in because of the nested nature of the .git directory. "also using" sounds a little odd, plus we say combined with later on so just use that. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-20git-svn documentation: fix typo in 'rebase vs. pull/merge' sectionLibravatar Miklos Vajna1-1/+1
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18add: allow configurations to be overriden by command lineLibravatar Stephen Boyd2-2/+15
Don't call git_config after parsing the command line options, otherwise the config settings will override any settings made by the command line. This can be seen by setting add.ignore_errors and then specifying --no-ignore-errors when using git-add. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18http.c: fix compiling with libcurl 7.9.2Libravatar Mark Lodato1-4/+4
Change the minimimum required libcurl version for the http.sslKey option to 7.9.3. Previously, preprocessor macros checked for >= 7.9.2, which is incorrect because CURLOPT_SSLKEY was introduced in 7.9.3. This now allows git to compile with libcurl 7.9.2. Signed-off-by: Mark Lodato <lodatom@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18fetch: do not create ref from empty nameLibravatar Clemens Buchacher1-1/+1
Previously, the refspec "<src>:" would be expanded to "<src>:refs/heads/". Instead, treat an empty <dst> just like refspecs without a colon. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18import-tars: support symlinksLibravatar Johannes Schindelin1-5/+12
Without this patch, symbolic links are turned into empty files. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18upload-archive: fix infinite loop on CygwinLibravatar René Scharfe1-5/+7
On Cygwin, poll() reports POLLIN even for file descriptors that have reached their end. This caused git upload-archive to be stuck in an infinite loop, as it only looked at the POLLIN flag. In addition to POLLIN, check if read() returned 0, which indicates end-of-file, and keep looping only as long as at least one of the file descriptors has input. This lets the following command finish on its own when run in a git repository on Cygwin, instead of it getting stuck after printing all file names: $ git archive -v --remote . HEAD >/dev/null Reported-by: Bob Kagy <bobkagy@gmail.com> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18avoid exponential regex match for java and objc function namesLibravatar Paolo Bonzini1-2/+3
In the old regex ^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\([^;]*)$ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ you can backtrack arbitrarily from [A-Za-z_0-9]* into [A-Za-z_], thus causing an exponential number of backtracks. Ironically it also causes the regex not to work as intended; for example "catch" can match the underlined part of the regex, the first repetition matching "c" and the second matching "atch". The replacement regex avoids this problem, because it makes sure that at least a space/tab is eaten on each repetition. In other words, a suffix of a repetition can never be a prefix of the next repetition. Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18Fix big left-shifts of unsigned charLibravatar Linus Torvalds8-16/+12
Shifting 'unsigned char' or 'unsigned short' left can result in sign extension errors, since the C integer promotion rules means that the unsigned char/short will get implicitly promoted to a signed 'int' due to the shift (or due to other operations). This normally doesn't matter, but if you shift things up sufficiently, it will now set the sign bit in 'int', and a subsequent cast to a bigger type (eg 'long' or 'unsigned long') will now sign-extend the value despite the original expression being unsigned. One example of this would be something like unsigned long size; unsigned char c; size += c << 24; where despite all the variables being unsigned, 'c << 24' ends up being a signed entity, and will get sign-extended when then doing the addition in an 'unsigned long' type. Since git uses 'unsigned char' pointers extensively, we actually have this bug in a couple of places. I may have missed some, but this is the result of looking at git grep '[^0-9 ][ ]*<<[ ][a-z]' -- '*.c' '*.h' git grep '<<[ ]*24' which catches at least the common byte cases (shifting variables by a variable amount, and shifting by 24 bits). I also grepped for just 'unsigned char' variables in general, and converted the ones that most obviously ended up getting implicitly cast immediately anyway (eg hash_name(), encode_85()). In addition to just avoiding 'unsigned char', this patch also tries to use a common idiom for the delta header size thing. We had three different variations on it: "& 0x7fUL" in one place (getting the sign extension right), and "& ~0x80" and "& 0x7f" in two other places (not getting it right). Apart from making them all just avoid using "unsigned char" at all, I also unified them to then use a simple "& 0x7f". I considered making a sparse extension which warns about doing implicit casts from unsigned types to signed types, but it gets rather complex very quickly, so this is just a hack. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-14pull, rebase: simplify to use die()Libravatar Stephen Boyd2-10/+5
Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-14use xstrdup, not strdup in ll-merge.cLibravatar Jim Meyering1-4/+4
Otherwise, a fluky allocation failure would cause merge configuration settings to be silently ignored. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-13Merge branch 'maint-1.6.2' into maintLibravatar Junio C Hamano1-33/+32
* maint-1.6.2: git-rerere.txt: grammatical fixups and cleanups