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2008-11-13Merge branch 'mk/maint-cg-push'Junio C Hamano
* mk/maint-cg-push: git push: Interpret $GIT_DIR/branches in a Cogito compatible way Conflicts: t/t5516-fetch-push.sh
2008-11-11git push: Interpret $GIT_DIR/branches in a Cogito compatible wayMartin Koegler
Current git versions ignore everything after # (called <head> in the following) when pushing. Older versions (before cf818348f1ab57), interpret #<head> as part of the URL, which make git bail out. As branches origin from Cogito, it is the best to correct this by using the behaviour of cg-push, that is to push HEAD to remote refs/heads/<head>. Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-11remote: add a new 'origin' variable to the structMiklos Vajna
This allows one to track where was the remote's original source, so that it's possible to decide if it makes sense to migrate it to the config format or not. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18make alloc_ref_from_str() the new alloc_ref()René Scharfe
With all calls to alloc_ref() gone, we can remove it and then we're free to give alloc_ref_from_str() the shorter name. It's a much nicer interface, as the callers always need to have a name string when they allocate a ref anyway and don't need to calculate and pass its length+1 any more. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18use alloc_ref_from_str() everywhereRené Scharfe
Replace pairs of alloc_ref() and strcpy() with alloc_ref_from_str(), simplifying the code. In connect.c, also a pair of alloc_ref() and memcpy() is replaced -- the additional cost of a strlen() call should not have too much of an impact. Consistency and simplicity are more important. In remote.c, the code was allocating 11 bytes more than needed for the name part, but I couldn't see them being used for anything. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-18add alloc_ref_with_prefix()René Scharfe
In three cases in remote.c, a "raw" ref is allocated using alloc_ref() and then its is constructed using sprintf(). Clean it up by adding a helper function, alloc_ref_with_prefix(), which creates a composite name. Use it in alloc_ref_from_str(), too, as it simplifies the code. Open code alloc_ref() in alloc_ref_with_prefix(), as the former is going to be removed in the patch after the next. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-17Merge branch 'maint'Junio C Hamano
* maint: t1301-shared-repo.sh: don't let a default ACL interfere with the test git-check-attr(1): add output and example sections xdiff-interface.c: strip newline (and cr) from line before pattern matching t4018-diff-funcname: demonstrate end of line funcname matching flaw t4018-diff-funcname: rework negated last expression test Typo "does not exists" when git remote update remote. remote.c: correct the check for a leading '/' in a remote name Add testcase to ensure merging an early part of a branch is done properly Conflicts: t/t7600-merge.sh
2008-10-15remote.c: correct the check for a leading '/' in a remote nameBrandon Casey
This test is supposed to disallow remote entries in the config file of the form: [remote "/foobar"] ... The leading slash in '/foobar' is not acceptable. Instead it was incorrectly testing that the subkey had no leading '/', which had no effect since the subkey pointer was made to point at a '.' in the preceding lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerBrandon Casey
Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-08Replace xmalloc/memset(0) pairs with xcallocBrandon Casey
Many call sites immediately initialize allocated memory with zero after calling xmalloc. A single call to xcalloc can replace this two-call sequence. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-25remote.c: make free_ref(), parse_push_refspec() and free_refspecs() static.Nanako Shiraishi
These functions are not used by any other file. Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-09Use xmalloc() and friends to catch allocation failuresDotan Barak
Some places use the standard malloc/strdup without checking if the allocation was successful; they should use xmalloc/xstrdup that check the memory allocation result. Signed-off-by: Dotan Barak <dotanba@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-22remote.c: add a function for deleting a refspec array and use it (twice)Brandon Casey
A number of call sites allocate memory for a refspec array, populate its members with heap memory, and then free only the refspec pointer while leaking the memory allocated for the member elements. Provide a function for freeing the elements of a refspec array and the array itself. Caution to callers: code paths must be checked to ensure that the refspec members "src" and "dst" can be passed to free. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-20remote.c: remove useless if-before-free testJim Meyering
We removed a handful of these useless if-before-free tests several months ago. This change removes a new one that snuck back in. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-27make sure parsed wildcard refspec ends with slashJunio C Hamano
A wildcard refspec is internally parsed into a refspec structure with src and dst strings. Many parts of the code assumed that these do not include the trailing "/*" when matching the wildcard pattern with an actual ref we see at the remote. What this meant was that we needed to make sure not just that the prefix matched, and also that a slash followed the part that matched. But a codepath that scans the result from ls-remote and finds matching refs forgot to check the "matching part must be followed by a slash" rule. This resulted in "refs/heads/b1" from the remote side to mistakenly match the source side of "refs/heads/b/*:refs/remotes/b/*" refspec. Worse, the refspec crafted internally by "git-clone", and a hardcoded preparsed refspec that is used to implement "git-fetch --tags", violated this "parsed widcard refspec does not end with slash" rule; simply adding the "matching part must be followed by a slash" rule then would have broken codepaths that use these refspecs. This commit changes the rule to require a trailing slash to parsed wildcard refspecs. IOW, "refs/heads/b/*:refs/remotes/b/*" is parsed as src = "refs/heads/b/" and dst = "refs/remotes/b/". This allows us to simplify the matching logic because we only need to do a prefixcmp() to notice "refs/heads/b/one" matches and "refs/heads/b1" does not. Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-17Reword "your branch has diverged..." lines to reduce line lengthAvery Pennarun
The message length depends on the length of the branch name. In my case, the branch name "origin/add-chickens2" put the first line of the "your branch has diverged" message over 80 characters, which triggered "less -FS" to not exit automatically as expected. This patch rewords the messages to make the lines generally shorter, so that you'd need a significantly longer branch name to trigger the problem. Signed-off-by: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-03stat_tracking_info(): clear object flags used during countingJunio C Hamano
When left-right traversal counts the commits in a diverged history, it leaves the flags in the commits smudged, and we need to clear them before we return. Otherwise the caller cannot inspect other branches with this function again. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-03Refactor "tracking statistics" code used by "git checkout"Junio C Hamano
People seem to like "Your branch is ahead by N commit" report made by "git checkout", but the interface into the statistics function was a bit clunky. This splits the function into three parts: * The core "commit counting" function that takes "struct branch" and returns number of commits to show if we are ahead, behind or forked; * Convenience "stat formating" function that takes "struct branch" and formats the report into a given strbuf, using the above function; * "checkout" specific function that takes "branch_info" (type that is internal to checkout implementation), calls the above function and print the formatted result. in the hope that the former two can be more easily reusable. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18clean up error conventions of remote.c:match_explicitJeff King
match_explicit is called for each push refspec to try to fully resolve the source and destination sides of the refspec. Currently, we look at each refspec and report errors on both the source and the dest side before aborting. It makes sense to report errors for each refspec, since an error in one is independent of an error in the other. However, reporting errors on the 'dst' side of a refspec if there has been an error on the 'src' side does not necessarily make sense, since the interpretation of the 'dst' side depends on the 'src' side (for example, when creating a new unqualified remote ref, we use the same type as the src ref). This patch lets match_explicit return early when the src side of the refspec is bogus. We still look at all of the refspecs before aborting the push, though. At the same time, we clean up the call signature, which previously took an extra "errs" flag. This was pointless, as we didn't act on that flag, but rather just passed it back to the caller. Instead, we now use the more traditional "return -1" to signal an error, and the caller aggregates the error count. This change fixes two bugs, as well: - the early return avoids a segfault when passing a NULL matched_src to guess_ref() - the check for multiple sources pointing to a single dest aborted if the "err" flag was set. Presumably the intent was not to bother with the check if we had no matched_src. However, since the err flag was passed in from the caller, we might abort the check just because a previous refspec had a problem, which doesn't make sense. In practice, this didn't matter, since due to the error flag we end up aborting the push anyway. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25Merge branch 'js/config-cb'v1.5.6-rc0Junio C Hamano
* js/config-cb: Provide git_config with a callback-data parameter Conflicts: builtin-add.c builtin-cat-file.c
2008-05-25Merge branch 'db/clone-in-c'Junio C Hamano
* db/clone-in-c: Add test for cloning with "--reference" repo being a subset of source repo Add a test for another combination of --reference Test that --reference actually suppresses fetching referenced objects clone: fall back to copying if hardlinking fails builtin-clone.c: Need to closedir() in copy_or_link_directory() builtin-clone: fix initial checkout Build in clone Provide API access to init_db() Add a function to set a non-default work tree Allow for having for_each_ref() list extra refs Have a constant extern refspec for "--tags" Add a library function to add an alternate to the alternates file Add a lockfile function to append to a file Mark the list of refs to fetch as const Conflicts: cache.h t/t5700-clone-reference.sh
2008-05-23Merge branch 'pb/push'Junio C Hamano
* pb/push: add special "matching refs" refspec
2008-05-14Provide git_config with a callback-data parameterJohannes Schindelin
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-11alloc_ref_from_str(): factor out a common pattern of alloc_ref from stringKrzysztof Kowalczyk
Also fix an underallocation in walker.c::interpret_target(). Signed-off-by: Krzysztof Kowalczyk <kkowalczyk@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-09Merge branch 'db/learn-HEAD'Junio C Hamano
* db/learn-HEAD: Make ls-remote http://... list HEAD, like for git://... Make walker.fetch_ref() take a struct ref.
2008-05-06Merge branch 'pb/remote-mirror-config'Junio C Hamano
* pb/remote-mirror-config: Add a remote.*.mirror configuration option
2008-05-05Have a constant extern refspec for "--tags"Daniel Barkalow
The refspec refs/tags/*:refs/tags/* is sufficiently common and generic to merit having a constant instead of generating it as needed. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05add special "matching refs" refspecPaolo Bonzini
This patch provides a way to specify "push matching heads" using a special refspec ":". This is useful because it allows "push = +:" as a way to specify that matching refs will be pushed but, in addition, forced updates will be allowed, which was not possible before. Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-27Make ls-remote http://... list HEAD, like for git://...Daniel Barkalow
This makes a struct ref able to represent a symref, and makes http.c able to recognize one, and makes transport.c look for "HEAD" as a ref in the list, and makes it dereference symrefs for the resulting ref, if any. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-25push: allow unqualified dest refspecs to DWIMJeff King
Previously, a push like: git push remote src:dst would go through the following steps: 1. check for an unambiguous 'dst' on the remote; if it exists, then push to that ref 2. otherwise, check if 'dst' begins with 'refs/'; if it does, create a new ref 3. otherwise, complain because we don't know where in the refs hierarchy to put 'dst' However, in some cases, we can guess about the ref type of 'dst' based on the ref type of 'src'. Specifically, before complaining we now check: 2.5. if 'src' resolves to a ref starting with refs/heads or refs/tags, then prepend that to 'dst' So now this creates a new branch on the remote, whereas it previously failed with an error message: git push master:newbranch Note that, by design, we limit this DWIM behavior only to source refs which resolve exactly (including symrefs which resolve to existing refs). We still complain on a partial destination refspec if the source is a raw sha1, or a ref expression such as 'master~10'. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-21Add a remote.*.mirror configuration optionPaolo Bonzini
This patch adds a remote.*.mirror configuration option that, when set, automatically puts git-push in --mirror mode for that remote. Furthermore, the option is set automatically by `git remote add --mirror'. The code in remote.c to parse remote.*.skipdefaultupdate had a subtle problem: a comment in the code indicated that special care was needed for boolean options, but this care was not used in parsing the option. Since I was touching related code, I did this fix too. [jc: and I further fixed up the "ignore boolean" code.] Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-18git-remote: reject adding remotes with invalid namesJonas Fonseca
This can happen if the arguments to git-remote add is switched by the user, and git would only show an error if fetching was also requested. Fix it by using the refspec parsing engine to check if the requested name can be parsed as a remote before add it. Also cleanup so that the "remote.<name>.url" config name buffer is only initialized once. Signed-off-by: Jonas Fonseca <fonseca@diku.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-12Fix config key miscount in url.*.insteadOfDaniel Barkalow
Also tighten test to require it to be correct. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-26Merge branch 'jc/maint-fetch-regression-1.5.4'Junio C Hamano
* jc/maint-fetch-regression-1.5.4: git-fetch test: test tracking fetch results, not just FETCH_HEAD Fix branches file configuration Tighten refspec processing Fix the wrong output of `git-show v1.3.0~155^2~4` in documentation.
2008-03-26Fix branches file configurationDaniel Barkalow
Fetched remote branch from .git/branches/foo should fetch into refs/heads/foo. Also when partial URL is given, the fetched head should always be remote HEAD, and the result should not be stored anywhere. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-26Tighten refspec processingDaniel Barkalow
This changes the pattern matching code to not store the required final / before the *, and then to require each side to be a valid ref (or empty). In particular, any refspec that looks like it should be a pattern but doesn't quite meet the requirements will be found to be invalid as a fallback non-pattern. This was cherry picked from commit ef00d15 (Tighten refspec processing, 2008-03-17), and two fix-up commits 46220ca (remote.c: Fix overtight refspec validation, 2008-03-20) and 7d19da4 (refspec: allow colon-less wildcard "refs/category/*", 2008-03-25) squashed in. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-26refspec: allow colon-less wildcard "refs/category/*"Junio C Hamano
"git push --tags elsewhere" is implemented in terms of wildcarded refspec "refs/tags/*" these days, and the user wants to push the tags under the same name to the other branch. This resurrects the support for it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-23remote.c: Fix overtight refspec validationJunio C Hamano
We tightened the refspec validation code in an earlier commit ef00d15 (Tighten refspec processing, 2008-03-17) per my suggestion, but the suggestion was misguided to begin with and it broke this usage: $ git push origin HEAD~12:master The syntax of push refspecs and fetch refspecs are similar in that they are both colon separated LHS and RHS (possibly prefixed with a + to force), but the similarity ends there. For example, LHS in a push refspec can be anything that evaluates to a valid object name at runtime (except when colon and RHS is missing, or it is a glob), while it must be a valid-looking refname in a fetch refspec. To validate them correctly, the caller needs to be able to say which kind of refspecs they are. It is unreasonable to keep a single interface that cannot tell which kind it is dealing with, and ask it to behave sensibly. This commit separates the parsing of the two into different functions, and clarifies the code to implement the parsing proper (i.e. splitting into two parts, making sure both sides are wildcard or neither side is). This happens to also allow pushing a commit named with the esoteric "look for that string" syntax: $ git push ../test.git ':/remote.c: Fix overtight refspec:master' Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-19Tighten refspec processingDaniel Barkalow
This changes the pattern matching code to not store the required final / before the *, and then to require each side to be a valid ref (or empty). In particular, any refspec that looks like it should be a pattern but doesn't quite meet the requirements will be found to be invalid as a fallback non-pattern. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-01Make git-remote a builtinJohannes Schindelin
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-27Merge branch 'jm/free'Junio C Hamano
* jm/free: Avoid unnecessary "if-before-free" tests. Conflicts: builtin-branch.c
2008-02-27Merge branch 'db/push-single-with-HEAD'Junio C Hamano
* db/push-single-with-HEAD: Resolve value supplied for no-colon push refspecs
2008-02-25url rewriting: take longest and first matchJunio C Hamano
Earlier we had a cop-out in the documentation to make the behaviour "undefined" if configuration had more than one insteadOf that would match the target URL, like this: [url "git://git.or.cz/"] insteadOf = "git.or.cz:" ; (1) insteadOf = "repo.or.cz:" ; (2) [url "/local/mirror/"] insteadOf = "git.or.cz:myrepo" ; (3) insteadOf = "repo.or.cz:" ; (4) It would be most natural to take the longest and first match, i.e. - rewrite "git.or.cz:frotz" to "git://git.or.cz/frotz" by using (1), - rewrite "git.or.cz:myrepo/xyzzy" to "/local/mirror/xyzzy" by favoring (3) over (1), and - rewrite "repo.or.cz:frotz" to "git://git.or.cz/frotz" by favoring (2) over (4). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-25Add support for url aliases in config filesDaniel Barkalow
This allows users with different preferences for access methods to the same remote repositories to rewrite each other's URLs by pattern matching across a large set of similiarly set up repositories to each get the desired access. For example, if you don't have a kernel.org account, you might want settings like: [url "git://git.kernel.org/pub/"] insteadOf = master.kernel.org:/pub Then, if you give git a URL like: master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git it will act like you gave it: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git and you can cut-and-paste pull requests in email without fixing them by hand, for example. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22Avoid unnecessary "if-before-free" tests.Jim Meyering
This change removes all obvious useless if-before-free tests. E.g., it replaces code like this: if (some_expression) free (some_expression); with the now-equivalent: free (some_expression); It is equivalent not just because POSIX has required free(NULL) to work for a long time, but simply because it has worked for so long that no reasonable porting target fails the test. Here's some evidence from nearly 1.5 years ago: http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html FYI, the change below was prepared by running the following: git ls-files -z | xargs -0 \ perl -0x3b -pi -e \ 's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s' Note however, that it doesn't handle brace-enclosed blocks like "if (x) { free (x); }". But that's ok, since there were none like that in git sources. Beware: if you do use the above snippet, note that it can produce syntactically invalid C code. That happens when the affected "if"-statement has a matching "else". E.g., it would transform this if (x) free (x); else foo (); into this: free (x); else foo (); There were none of those here, either. If you're interested in automating detection of the useless tests, you might like the useless-if-before-free script in gnulib: [it *does* detect brace-enclosed free statements, and has a --name=S option to make it detect free-like functions with different names] http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free Addendum: Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20Resolve value supplied for no-colon push refspecsDaniel Barkalow
When pushing a refspec like "HEAD", we used to treat it as "HEAD:HEAD", which didn't work without rewriting. Instead, we should resolve the ref. If it's a symref, further require it to point to a branch, to avoid doing anything especially unexpected. Also remove the rewriting previously added in builtin-push. Since the code for "HEAD" uses the regular refspec parsing, it automatically handles "+HEAD" without anything special. [jc: added a further test to make sure that "remote.*.push = HEAD" works] Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-19Use ALLOC_GROW in remote.{c,h}Daniel Barkalow
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15Validate nicknames of remote branches to prohibit confusing onesDaniel Barkalow
The original problem was that the parsers for configuration files were getting confused by seeing as nicknames remotes that involved directory-changing characters. In particular, the branches config file for ".." was particularly mystifying on platforms that can open directories and read odd data from them. The validation function was written by Junio Hamano (with a typo corrected). Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11remote.c: guard config parser from value=NULLJunio C Hamano
branch.*.{remote,merge} expect a string value Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-15remote: Fix bogus make_branch() call in configuration reader.Junio C Hamano
The configuration reader to enumerate branches that have configuration data were not careful enough and failed to skip "branch.<variable>" entries (e.g. branch.autosetupmerge). This resulted in bogus attempt to allocate huge memory. Noticed by David Miller. Signed-off-by: Junio C Hamano <gitster@pobox.com>