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2011-10-10refs.c: abort ref search if ref array is emptyBrandon Casey1-0/+3
The bsearch() implementation on IRIX 6.5 segfaults if it is passed NULL for the base array argument even if number-of-elements is zero. So, let's work around it by detecting an empty array and aborting early. This is a useful optimization in its own right anyway, since we avoid a useless allocation and initialization of the ref_entry when the ref array is empty. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-10refs.c: ensure struct whose member may be passed to realloc is initializedBrandon Casey1-0/+1
The variable "refs" is allocated on the stack but is not initialized. It is passed to read_packed_refs(), and its struct members may eventually be passed to add_ref() and ALLOC_GROW(). Since the structure has not been initialized, its members may contain random non-zero values. So let's initialize it. The call sequence looks something like this: resolve_gitlink_packed_ref(...) { struct cached_refs refs; ... read_packed_refs(f, &refs); ... } read_packed_refs(FILE*, struct cached_refs *cached_refs) { ... add_ref(name, sha1, flag, &cached_refs->packed, &last); ... } add_ref(..., struct ref_array *refs, struct ref_entry **) { ... ALLOC_GROW(refs->refs, refs->nr + 1, refs->alloc); } Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-09Fix some "variable might be used uninitialized" warningsRamsay Jones2-2/+2
In particular, gcc complains as follows: CC tree-walk.o tree-walk.c: In function `traverse_trees': tree-walk.c:347: warning: 'e' might be used uninitialized in this \ function CC builtin/revert.o builtin/revert.c: In function `verify_opt_mutually_compatible': builtin/revert.c:113: warning: 'opt2' might be used uninitialized in \ this function Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-09Makefile: fix permissions of mergetools/ checked out with permissive umaskJonathan Nieder1-2/+1
Ever since mergetool--lib was split into multiple files in v1.7.7-rc0~3^2~1 (2011-08-18), the Makefile takes care to reset umask and use tar --no-owner when installing merge tool definitions to $(gitexecdir)/mergetools/. Unfortunately it does not take into account the possibility that the permission bits of the files being copied might already be wrong. Rather than fixing the "tar" incantation and making it even more complicated, let's just use the "install" utility. This only means losing the ability to install executables and subdirectories of mergetools/, which wasn't used. Noticed by installing from a copy of git checked out with umask 002. Compare v1.6.0.3~81^2 (Fix permission bits on sources checked out with an overtight umask, 2008-08-21). Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05add_ref(): verify that the refname is formatted correctlyMichael Haggerty2-5/+19
In add_ref(), verify that the refname is formatted correctly before adding it to the ref_list. Here we have to allow refname components that start with ".", since (for example) the remote protocol uses synthetic reference name ".have". So add a new REFNAME_DOT_COMPONENT flag that can be passed to check_refname_format() to allow leading dots. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): expand documentationMichael Haggerty2-13/+33
Record information about resolve_ref(), hard-won via reverse engineering, in a comment for future spelunkers. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): also treat a too-long SHA1 as invalidMichael Haggerty1-1/+2
If the SHA1 in a reference file is not terminated by a space or end-of-file, consider it malformed and emit a warning. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): emit warnings for improperly-formatted referencesMichael Haggerty1-2/+4
While resolving references, if a reference is found that is in an unrecognized format, emit a warning (and then fail, as before). Wouldn't *you* want to know? Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): verify that the input refname has the right formatMichael Haggerty1-0/+3
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05remote: avoid passing NULL to read_ref()Michael Haggerty1-2/+4
read_ref() can (and in test t5800, actually *does*) return NULL. Don't pass the NULL along to read_ref(). Coincidentally, this mistake didn't make resolve_ref() blow up, but upcoming changes to resolve_ref() will make it less forgiving. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05remote: use xstrdup() instead of strdup()Michael Haggerty2-3/+3
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): do not follow incorrectly-formatted symbolic refsMichael Haggerty1-0/+5
Emit a warning and fail if a symbolic reference refers to an incorrectly-formatted refname. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): extract a function get_packed_ref()Michael Haggerty1-13/+34
Making it a function and giving it a name makes the code clearer. I also have a strong suspicion that the function will find other uses in the future. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): turn buffer into a proper string as soon as possibleMichael Haggerty1-10/+10
Immediately strip off trailing spaces and null-terminate the string holding the contents of the reference file; this allows the use of string functions and avoids the need to keep separate track of the string's length. (get_sha1_hex() fails automatically if the string is too short.) Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): only follow a symlink that contains a valid, normalized refnameMichael Haggerty1-1/+2
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): use prefixcmp()Michael Haggerty1-2/+2
Terminate the link content string one step earlier, allowing prefixcmp() to be used instead of the less clear memcmp(). Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05resolve_ref(): explicitly fail if a symlink is not readableMichael Haggerty1-0/+2
Previously the failure came later, after a few steps in which the length was treated like the actual length of a string. Even though the old code gave the same answers, it was somewhat misleading. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Change check_refname_format() to reject unnormalized refnamesMichael Haggerty5-28/+49
Since much of the infrastructure does not work correctly with unnormalized refnames, change check_refname_format() to reject them. Similarly, change "git check-ref-format" to reject unnormalized refnames by default. But add an option --normalize, which causes "git check-ref-format" to normalize the refname before checking its format, and print the normalized refname. This is exactly the behavior of the old --print option, which is retained but deprecated. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Inline function refname_format_print()Michael Haggerty1-9/+7
Soon we will make printing independent of collapsing. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Make collapse_slashes() allocate memory for its resultMichael Haggerty1-9/+10
This will make upcoming changes a tiny bit easier. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Do not allow ".lock" at the end of any refname componentMichael Haggerty3-9/+7
Allowing any refname component to end with ".lock" is looking for trouble; for example, $ git br foo.lock/bar $ git br foo fatal: Unable to create '[...]/.git/refs/heads/foo.lock': File exists. Therefore, do not allow any refname component to end with ".lock". Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Refactor check_refname_format()Michael Haggerty1-40/+55
Among other things, extract a function check_refname_component(). Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Change check_ref_format() to take a flags argumentMichael Haggerty20-126/+69
Change check_ref_format() to take a flags argument that indicates what is acceptable in the reference name (analogous to "git check-ref-format"'s "--allow-onelevel" and "--refspec-pattern"). This is more convenient for callers and also fixes a failure in the test suite (and likely elsewhere in the code) by enabling "onelevel" and "refspec-pattern" to be allowed independently of each other. Also rename check_ref_format() to check_refname_format() to make it obvious that it deals with refnames rather than references themselves. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Change bad_ref_char() to return a boolean valueMichael Haggerty1-9/+6
Previously most bad characters were indicated by returning 1, but "*" was special-cased to return 2 instead of 1. One caller examined the return value to see whether the special case occurred. But it is easier (to document and understand) for bad_ref_char() simply to return a boolean value, treating "*" like any other bad character. Special-case the handling of "*" (which only occurs in very specific circumstances) at the caller. The resulting calling code thereby also becomes more transparent. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05git check-ref-format: add options --allow-onelevel and --refspec-patternMichael Haggerty3-21/+152
Also add tests of the new options. (Actually, one big reason to add the new options is to make it easy to test check_ref_format(), though the options should also be useful to other scripts.) Interpret the result of check_ref_format() based on which types of refnames are allowed. However, because check_ref_format() can only return a single value, one test case is still broken. Specifically, the case "git check-ref-format --onelevel '*'" incorrectly succeeds because check_ref_format() returns CHECK_REF_FORMAT_ONELEVEL for this refname even though the refname is also CHECK_REF_FORMAT_WILDCARD. The type of check that leads to this failure is used elsewhere in "real" code and could lead to bugs; it will be fixed over the next few commits. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05t1402: add some more testsMichael Haggerty1-0/+9
The new tests reflect the status quo. Soon the rule for "*.lock" in refname components will be tightened up. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05get_sha1_hex(): do not read past a NUL characterMichael Haggerty2-1/+18
Previously, get_sha1_hex() would read one character past the end of a null-terminated string whose strlen was an even number less than 40. Although the function correctly returned -1 in these cases, the extra memory access might have been to uninitialized (or even, conceivably, unallocated) memory. Add a check to avoid reading past the end of a string. This problem was discovered by Thomas Rast <trast@student.ethz.ch> using valgrind. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05Post 1.7.7 first waveJunio C Hamano3-2/+109
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-30Git 1.7.7v1.7.7Junio C Hamano3-10/+6
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-30refs: Use binary search to lookup refs fasterJulian Phillips1-193/+152
Currently we linearly search through lists of refs when we need to find a specific ref. This can be very slow if we need to lookup a large number of refs. By changing to a binary search we can make this faster. In order to be able to use a binary search we need to change from using linked lists to arrays, which we can manage using ALLOC_GROW. We can now also use the standard library qsort function to sort the refs arrays. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-29git-remote-mediawiki: allow a domain to be set for authenticationMatthieu Moy1-0/+3
When the wiki uses e.g. LDAP for authentication, the web interface shows a popup to allow the user to chose an authentication domain, and we need to use lgdomain in the API at login time. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27git-remote-mediawiki: obey advice.pushNonFastForwardMatthieu Moy1-7/+10
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27git-remote-mediawiki: set 'basetimestamp' to let the wiki handle conflictsMatthieu Moy1-6/+37
We already have a check that no new revisions are on the wiki at the beginning of the push, but this didn't handle concurrent accesses to the wiki. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27git-remote-mediawiki: trivial fixesMatthieu Moy1-2/+1
Fix a whitespace issue (no space before :) and remove unused %status in mw_push. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27templates/hooks--*: remove sample hooks without any functionalityGerrit Pape2-23/+0
Remove the sample post-commit and post-receive hooks. The sample post-commit doesn't contain any sample functionality and the comments do not provide more information than already found in the documentation. The sample post-receive hooks doesn't provide any sample functionality either and refers in the comments to a contrib hook that might be installed in different locations on different systems, which isn't that helpful. Signed-off-by: Gerrit Pape <pape@smarden.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27Don't sort ref_list too earlyJulian Phillips1-1/+3
get_ref_dir is called recursively for subdirectories, which means that we were calling sort_ref_list for each directory of refs instead of once for all the refs. This is a massive wast of processing, so now just call sort_ref_list on the result of the top-level get_ref_dir, so that the sort is only done once. In the common case of only a few different directories of refs the difference isn't very noticable, but it becomes very noticeable when you have a large number of direcotries containing refs (e.g. as created by Gerrit). Reported by Martin Fick. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-27contrib/hooks: adapt comment about Debian install location for contrib hooksGerrit Pape1-2/+2
Placing the contrib hooks into /usr/share/doc/ wasn't a good idea in the first place. According to the Debian policy they should be located in /usr/share/git-core/, so let's put them there. Thanks to Bill Allombert for reporting this through http://bugs.debian.org/640949 Signed-off-by: Gerrit Pape <pape@smarden.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-26mergetool: no longer need to save standard inputJunio C Hamano1-6/+4
Earlier code wanted to run merge_file and prompt_after_failed_merge both of which wanted to read from the standard input of the entire script inside a while loop, which read from a pipe, and in order to do so, it redirected the original standard input to another file descriptor. We no longer need to do so after the previous change. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-26mergetool: Use args as pathspec to unmerged filesJonathon Mah3-69/+72
Mergetool now treats its path arguments as a pathspec (like other git subcommands), restricting action to the given files and directories. Files matching the pathspec are filtered so mergetool only acts on unmerged paths; previously it would assume each path argument was in an unresolved state, and get confused when it couldn't check out their other stages. Running "git mergetool subdir" will prompt to resolve all conflicted blobs under subdir. Signed-off-by: Jonathon Mah <me@JonathonMah.com> Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-24Git 1.7.7-rc3v1.7.7-rc3Junio C Hamano2-31/+2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-24merge-recursive: Do not look at working tree during a virtual ancestor mergeJunio C Hamano1-1/+1
Fix another instance of a recursive merge incorrectly paying attention to the working tree file during a virtual ancestor merge, that resulted in spurious and useless "addinfo_cache failed" error message. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-23Git 1.7.6.4v1.7.6.4Junio C Hamano4-3/+36
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-23describe: Refresh the index when run with --dirtyAllan Caffee1-2/+15
When running git describe --dirty the index should be refreshed. Previously the cached index would cause describe to think that the index was dirty when, in reality, it was just stale. The issue was exposed by python setuptools which hardlinks files into another directory when building a distribution. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-23t0003: remove extra whitespacesJunio C Hamano1-46/+22
The test had excess whitespaces everywhere that made it harder to read than necessary. Remove them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-23Teach '--cached' option to check-attrJay Soffian3-4/+29
This option causes check-attr to consider .gitattributes only from the index, ignoring .gitattributes from the working tree. This allows the command to be used in situations where a working tree does not exist. Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-22diff: teach --stat/--numstat to honor -U$numJunio C Hamano1-0/+2
"git diff -p" piped to external diffstat and "git diff --stat" may see different patch text (both are valid and describe the same change correctly) when counting the number of added and deleted lines, arriving at different results to confuse the users, as --stat/--numstat codepath always uses the hardcoded -U0 as the context length. Make --stat/--numstat codepath to honor the context length the same way as the textual patch codepath does to avoid this problem. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-22patch-id.c: use strbuf instead of a fixed bufferMichael Schubert1-4/+6
get_one_patchid() uses a rather dumb heuristic to determine if the passed buffer is part of the next commit. Whenever the first 40 bytes are a valid hexadecimal sha1 representation, get_one_patchid() returns next_sha1. Once the current line is longer than the fixed buffer, this will break (provided the additional bytes make a valid hexadecimal sha1). As a result patch-id returns incorrect results. Instead, use strbuf and read one line at a time. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Michael Schubert <mschub@elegosoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-22git-read-tree.txt: correct sparse-checkout and skip-worktree descriptionMichael J Gruber1-4/+4
The description of .git/info/sparse-checkout and skip-worktree is exactly the opposite of what is true, which is: If a file matches a pattern in sparse-checkout, then (it is to be checked out and therefore) skip-worktree is unset for that file; otherwise, it is set (so that it is not checked out). Currently, the opposite is documented, and (consistently) read-tree's behavior with respect to bit flips is descibed incorrectly. Fix it. In hindsight, it would have been much better to have a "sparse-ignore" or "sparse-skip" file so that an empty file would mean a full checkout, and the file logic would be analogous to that of .gitignore, excludes and skip-worktree. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-22git-read-tree.txt: language and typography fixesMichael J Gruber1-20/+20
Fix a few missing articles and such, and mark-up 'commands' and `files` appropriately. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-22unpack-trees: print "Aborting" to stderrMichael J Gruber3-1/+7
display_error_msgs() prints all the errors to stderr already (if any), followed by "Aborting" (if any) to stdout. Make the latter go to stderr instead. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>