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2013-11-07Merge branch 'jc/revision-range-unpeel' into maintLibravatar Junio C Hamano1-0/+8
"git rev-list --objects ^v1.0^ v1.0" gave v1.0 tag itself in the output, but "git rev-list --objects v1.0^..v1.0" did not. * jc/revision-range-unpeel: revision: do not peel tags used in range notation
2013-10-30t5570: Update for clone-progress-to-stderr branchLibravatar Brian Gernhardt1-2/+1
git clone now reports its progress to standard error, which throws off t5570. Using test_i18ngrep instead of test_cmp allows the test to be more flexible by only looking for the expected error and ignoring any other output from the program. Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-28Merge branch 'jk/clone-progress-to-stderr' into maintLibravatar Junio C Hamano3-5/+11
"git clone" gave some progress messages to the standard output, not to the standard error, and did not allow suppressing them with the "--no-progress" option. * jk/clone-progress-to-stderr: clone: always set transport options clone: treat "checking connectivity" like other progress clone: send diagnostic messages to stderr
2013-10-28Merge branch 'jk/format-patch-from' into maintLibravatar Junio C Hamano1-0/+10
"format-patch --from=<whom>" forgot to omit unnecessary in-body from line, i.e. when <whom> is the same as the real author. * jk/format-patch-from: format-patch: print in-body "From" only when needed
2013-10-28Merge branch 'jk/shortlog-tolerate-broken-commit' into maintLibravatar Junio C Hamano1-0/+16
"git shortlog" used to choke and die when there is a malformed commit (e.g. missing authors); it now simply ignore such a commit and keeps going. * jk/shortlog-tolerate-broken-commit: shortlog: ignore commits with missing authors
2013-10-28test-lib: fix typo in commentLibravatar Torstein Hegge1-1/+1
Point test writers to the test_expect_* functions properly. Signed-off-by: Torstein Hegge <hegge@resisty.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-23Merge branch 'jc/ls-files-killed-optim' into maintLibravatar Junio C Hamano1-8/+19
"git ls-files -k" needs to crawl only the part of the working tree that may overlap the paths in the index to find killed files, but shared code with the logic to find all the untracked files, which made it unnecessarily inefficient. * jc/ls-files-killed-optim: dir.c::test_one_path(): work around directory_exists_in_index_icase() breakage t3010: update to demonstrate "ls-files -k" optimization pitfalls ls-files -k: a directory only can be killed if the index has a non-directory dir.c: use the cache_* macro to access the current index
2013-10-23Merge branch 'jh/checkout-auto-tracking' into maintLibravatar Junio C Hamano2-4/+40
"git branch --track" had a minor regression in v1.8.3.2 and later that made it impossible to base your local work on anything but a local branch of the upstream repository you are tracking from. * jh/checkout-auto-tracking: t3200: fix failure on case-insensitive filesystems branch.c: Relax unnecessary requirement on upstream's remote ref name t3200: Add test demonstrating minor regression in 41c21f2 Refer to branch.<name>.remote/merge when documenting --track t3200: Minor fix when preparing for tracking failure t2024: Fix &&-chaining and a couple of typos
2013-10-23Merge branch 'nd/fetch-into-shallow' into maintLibravatar Junio C Hamano2-3/+11
When there is no sufficient overlap between old and new history during a "git fetch" into a shallow repository, objects that the sending side knows the receiving end has were unnecessarily sent. * nd/fetch-into-shallow: Add testcase for needless objects during a shallow fetch list-objects: mark more commits as edges in mark_edges_uninteresting list-objects: reduce one argument in mark_edges_uninteresting upload-pack: delegate rev walking in shallow fetch to pack-objects shallow: add setup_temporary_shallow() shallow: only add shallow graft points to new shallow file move setup_alternate_shallow and write_shallow_commits to shallow.c
2013-10-17Merge branch 'nd/git-dir-pointing-at-gitfile' into maintLibravatar Junio C Hamano1-0/+4
* nd/git-dir-pointing-at-gitfile: Make setup_git_env() resolve .git file when $GIT_DIR is not specified
2013-10-17Merge branch 'ap/commit-author-mailmap' into maintLibravatar Junio C Hamano1-0/+11
* ap/commit-author-mailmap: commit: search author pattern against mailmap
2013-10-17Merge branch 'es/rebase-i-no-abbrev' into maintLibravatar Junio C Hamano1-2/+87
* es/rebase-i-no-abbrev: rebase -i: fix short SHA-1 collision t3404: rebase -i: demonstrate short SHA-1 collision t3404: make tests more self-contained Conflicts: t/t3404-rebase-interactive.sh
2013-10-17Merge branch 'rt/rebase-p-no-merge-summary' into maintLibravatar Junio C Hamano1-0/+23
* rt/rebase-p-no-merge-summary: rebase --preserve-merges: ignore "merge.log" config
2013-10-17t4254: modernize testsLibravatar SZEDER Gábor1-21/+15
- Don't start tests with 'test $? = 0' to catch preparation done outside the test_expect_success block. - Move writing the bogus patch and the expected output into the appropriate test_expect_success blocks. - Use the test_must_fail helper instead of manually checking for non-zero exit code. - Use the debug-friendly test_path_is_file helper instead of 'test -f'. - No space after '>'. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-15revision: do not peel tags used in range notationLibravatar Junio C Hamano1-0/+8
A range notation "A..B" means exactly the same thing as what "^A B" means, i.e. the set of commits that are reachable from B but not from A. But the internal representation after the revision parser parsed these two notations are subtly different. - "rev-list ^A B" leaves A and B in the revs->pending.objects[] array, with the former marked as UNINTERESTING and the revision traversal machinery propagates the mark to underlying commit objects A^0 and B^0. - "rev-list A..B" peels tags and leaves A^0 (marked as UNINTERESTING) and B^0 in revs->pending.objects[] array before the traversal machinery kicks in. This difference usually does not matter, but starts to matter when the --objects option is used. For example, we see this: $ git rev-list --objects v1.8.4^1..v1.8.4 | grep $(git rev-parse v1.8.4) $ git rev-list --objects v1.8.4 ^v1.8.4^1 | grep $(git rev-parse v1.8.4) 04f013dc38d7512eadb915eba22efc414f18b869 v1.8.4 With the former invocation, the revision traversal machinery never hears about the tag v1.8.4 (it only sees the result of peeling it, i.e. the commit v1.8.4^0), and the tag itself does not appear in the output. The latter does send the tag object itself to the output. Make the range notation keep the unpeeled objects and feed them to the traversal machinery to fix this inconsistency. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-14clone --branch: refuse to clone if upstream repo is emptyLibravatar Ralf Thielow1-1/+7
Since 920b691 (clone: refuse to clone if --branch points to bogus ref) we refuse to clone with option "-b" if the specified branch does not exist in the (non-empty) upstream. If the upstream repository is empty, the branch doesn't exist, either. So refuse the clone too. Reported-by: Robert Mitwicki <robert.mitwicki@opensoftware.pl> Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-20format-patch: print in-body "From" only when neededLibravatar Jeff King1-0/+10
Commit a908047 taught format-patch the "--from" option, which places the author ident into an in-body from header, and uses the committer ident in the rfc822 from header. The documentation claims that it will omit the in-body header when it is the same as the rfc822 header, but the code never implemented that behavior. This patch completes the feature by comparing the two idents and doing nothing when they are the same (this is the same as simply omitting the in-body header, as the two are by definition indistinguishable in this case). This makes it reasonable to turn on "--from" all the time (if it matches your particular workflow), rather than only using it when exporting other people's patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-18shortlog: ignore commits with missing authorsLibravatar Jeff King1-0/+16
Most of git's traversals are robust against minor breakages in commit data. For example, "git log" will still output an entry for a commit that has a broken encoding or missing author, and will not abort the whole operation. Shortlog, on the other hand, will die as soon as it sees a commit without an author, meaning that a repository with a broken commit cannot get any shortlog output at all. Let's downgrade this fatal error to a warning, and continue the operation. We simply ignore the commit and do not count it in the total (since we do not have any author under which to file it). Alternatively, we could output some kind of "<empty>" record to collect these bogus commits. It is probably not worth it, though; we have already warned to stderr, so the user is aware that such bogosities exist, and any placeholder we came up with would either be syntactically invalid, or would potentially conflict with real data. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-18clone: always set transport optionsLibravatar Jeff King1-0/+4
A clone will always create a transport struct, whether we are cloning locally or using an actual protocol. In the local case, we only use the transport to get the list of refs, and then transfer the objects out-of-band. However, there are many options that we do not bother setting up in the local case. For the most part, these are noops, because they only affect the object-fetching stage (e.g., the --depth option). However, some options do have a visible impact. For example, giving the path to upload-pack via "-u" does not currently work for a local clone, even though we need upload-pack to get the ref list. We can just drop the conditional entirely and set these options for both local and non-local clones. Rather than keep track of which options impact the object versus the ref fetching stage, we can simply let the noops be noops (and the cost of setting the options in the first place is not high). The one exception is that we also check that the transport provides both a "get_refs_list" and a "fetch" method. We will now be checking the former for both cases (which is good, since a transport that cannot fetch refs would not work for a local clone), and we tweak the conditional to check for a "fetch" only when we are non-local. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-18clone: treat "checking connectivity" like other progressLibravatar Jeff King1-1/+2
When stderr does not point to a tty, we typically suppress "we are now in this phase" progress reporting (e.g., we ask the server not to send us "counting objects" and the like). The new "checking connectivity" message is in the same vein, and should be suppressed. Since clone relies on the transport code to make the decision, we can simply sneak a peek at the "progress" field of the transport struct. That properly takes into account both the verbosity and progress options we were given, as well as the result of isatty(). Note that we do not set up that progress flag for a local clone, as we do not fetch using the transport at all. That's acceptable here, though, because we also do not perform a connectivity check in that case. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-18clone: send diagnostic messages to stderrLibravatar Jeff King2-5/+6
Putting messages like "Cloning into.." and "done" on stdout is un-Unix and uselessly clutters the stdout channel. Send them to stderr. We have to tweak two tests to accommodate this: 1. t5601 checks for doubled output due to forking, and doesn't actually care where the output goes; adjust it to check stderr. 2. t5702 is trying to test whether progress output was sent to stderr, but naively does so by checking whether stderr produced any output. Instead, have it look for "%", a token found in progress output but not elsewhere (and which lets us avoid hard-coding the progress text in the test). This should not regress any scripts that try to parse the current output, as the output is already internationalized and therefore unstable. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-18Merge branch 'bc/completion-for-bash-3.0' into maintLibravatar Junio C Hamano1-1/+1
Some people still use rather old versions of bash, which cannot grok some constructs like 'printf -v varname' the prompt and completion code started to use recently. * bc/completion-for-bash-3.0: contrib/git-prompt.sh: handle missing 'printf -v' more gracefully t9902-completion.sh: old Bash still does not support array+=('') notation git-completion.bash: use correct Bash/Zsh array length syntax
2013-09-18Merge branch 'mm/no-shell-escape-in-die-message' into maintLibravatar Junio C Hamano1-0/+13
Fixes a minor bug in "git rebase -i" (there could be others, as the root cause is pretty generic) where the code feeds a random, data dependeant string to 'echo' and expects it to come out literally. * mm/no-shell-escape-in-die-message: die_with_status: use "printf '%s\n'", not "echo"
2013-09-18Merge branch 'jl/some-submodule-config-are-not-boolean' into maintLibravatar Junio C Hamano1-0/+10
* jl/some-submodule-config-are-not-boolean: avoid segfault on submodule.*.path set to an empty "true"
2013-09-18Merge branch 'tr/log-full-diff-keep-true-parents' into maintLibravatar Junio C Hamano2-0/+28
Output from "git log --full-diff -- <pathspec>" looked strange, because comparison was done with the previous ancestor that touched the specified <pathspec>, causing the patches for paths outside the pathspec to show more than the single commit has changed. * tr/log-full-diff-keep-true-parents: log: use true parents for diff when walking reflogs log: use true parents for diff even when rewriting
2013-09-18Merge branch 'jc/transport-do-not-use-connect-twice-in-fetch' into maintLibravatar Junio C Hamano1-0/+72
The auto-tag-following code in "git fetch" tries to reuse the same transport twice when the serving end does not cooperate and does not give tags that point to commits that are asked for as part of the primary transfer. Unfortunately, Git-aware transport helper interface is not designed to be used more than once, hence this does not work over smart-http transfer. * jc/transport-do-not-use-connect-twice-in-fetch: builtin/fetch.c: Fix a sparse warning fetch: work around "transport-take-over" hack fetch: refactor code that fetches leftover tags fetch: refactor code that prepares a transport fetch: rename file-scope global "transport" to "gtransport" t5802: add test for connect helper
2013-09-18Merge branch 'sp/clip-read-write-to-8mb' into maintLibravatar Junio C Hamano1-0/+14
Send a large request to read(2)/write(2) as a smaller but still reasonably large chunks, which would improve the latency when the operation needs to be killed and incidentally works around broken 64-bit systems that cannot take a 2GB write or read in one go. * sp/clip-read-write-to-8mb: Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU" xread, xwrite: limit size of IO to 8MB
2013-09-18Merge branch 'jk/mailmap-incomplete-line' into maintLibravatar Junio C Hamano1-1/+15
* jk/mailmap-incomplete-line: mailmap: handle mailmap blobs without trailing newlines
2013-09-17t3200: fix failure on case-insensitive filesystemsLibravatar Eric Sunshine1-0/+1
62d94a3a (t3200: Add test demonstrating minor regression in 41c21f2; 2013-09-08) introduced a test which creates a directory named 'a', however, on case-insensitive filesystems, this action fails with a "fatal: cannot mkdir a: File exists" error due to a file named 'A' left over from earlier tests. Resolve this problem. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-17t7406-submodule-update: add missing &&Libravatar Tay Ray Chuan1-1/+1
322bb6e (2011 Aug 11) introduced a new subshell at the end of a test case but omitted a '&&' to join the two; fix this. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09branch.c: Relax unnecessary requirement on upstream's remote ref nameLibravatar Per Cederqvist1-1/+1
When creating an upstream relationship, we use the configured remotes and their refspecs to determine the upstream configuration settings branch.<name>.remote and branch.<name>.merge. However, if the matching refspec does not have refs/heads/<something> on the remote side, we end up rejecting the match, and failing the upstream configuration. It could be argued that when we set up an branch's upstream, we want that upstream to also be a proper branch in the remote repo. Although this is typically the common case, there are cases (as demonstrated by the previous patch in this series) where this requirement prevents a useful upstream relationship from being formed. Furthermore: - We have fundamentally no say in how the remote repo have organized its branches. The remote repo may put branches (or branch-like constructs that are insteresting for downstreams to track) outside refs/heads/*. - The user may intentionally want to track a non-branch from a remote repo, by using a branch and configured upstream in the local repo. Relaxing the checking to only require a matching remote/refspec allows the testcase introduced in the previous patch to succeed, and has no negative effect on the rest of the test suite. This patch fixes a behavior (arguably a regression) first introduced in 41c21f2 (branch.c: Validate tracking branches with refspecs instead of refs/remotes/*) on 2013-04-21 (released in >= v1.8.3.2). Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09t3200: Add test demonstrating minor regression in 41c21f2Libravatar Johan Herland1-0/+34
In 41c21f2 (branch.c: Validate tracking branches with refspecs instead of refs/remotes/*), we changed the rules for what is considered a valid tracking branch (a.k.a. upstream branch). We now use the configured remotes and their refspecs to determine whether a proposed tracking branch is in fact within the domain of a remote, and we then use that information to deduce the upstream configuration (branch.<name>.remote and branch.<name>.merge). However, with that change, we also check that - in addition to a matching refspec - the result of mapping the tracking branch through that refspec (i.e. the corresponding ref name in the remote repo) happens to start with "refs/heads/". In other words, we require that a tracking branch refers to a _branch_ in the remote repo. Now, consider that you are e.g. setting up an automated building/testing infrastructure for a group of similar "source" repositories. The build/test infrastructure consists of a central scheduler, and a number of build/test "slave" machines that perform the actual build/test work. The scheduler monitors the group of similar repos for changes (e.g. with a periodic "git fetch"), and triggers builds/tests to be run on one or more slaves. Graphically the changes flow between the repos like this: Source #1 -------v ----> Slave #1 / Source #2 -----> Scheduler -----> Slave #2 \ Source #3 -------^ ----> Slave #3 ... ... The scheduler maintains a single Git repo with each of the source repos set up as distinct remotes. The slaves also need access to all the changes from all of the source repos, so they pull from the scheduler repo, but using the following custom refspec: remote.origin.fetch = "+refs/remotes/*:refs/remotes/*" This makes all of the scheduler's remote-tracking branches automatically available as identical remote-tracking branches in each of the slaves. Now, consider what happens if a slave tries to create a local branch with one of the remote-tracking branches as upstream: git branch local_branch --track refs/remotes/source-1/some_branch Git now looks at the configured remotes (in this case there is only "origin", pointing to the scheduler's repo) and sees refs/remotes/source-1/some_branch matching origin's refspec. Mapping through that refspec we find that the corresponding remote ref name is "refs/remotes/source-1/some_branch". However, since this remote ref name does not start with "refs/heads/", we discard it as a suitable upstream, and the whole command fails. This patch adds a testcase demonstrating this failure by creating two source repos ("a" and "b") that are forwarded through a scheduler ("c") to a slave repo ("d"), that then tries create a local branch with an upstream. See the next patch in this series for the exciting conclusion to this story... Reported-by: Per Cederqvist <cederp@opera.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09t3200: Minor fix when preparing for tracking failureLibravatar Johan Herland1-1/+2
We're testing that trying to --track a ref that is not covered by any remote refspec should fail. For that, we want to have refs/remotes/local/master present, but we also want the remote.local.fetch refspec to NOT match refs/remotes/local/master (so that the tracking setup will fail, as intended). However, when doing "git fetch local" to ensure the existence of refs/remotes/local/master, we must not already have changed remote.local.fetch so as to cause refs/remotes/local/master not to be fetched. Therefore, set remote.local.fetch to refs/heads/*:refs/remotes/local/* BEFORE we fetch, and then reset it to refs/heads/s:refs/remotes/local/s AFTER we have fetched (but before we test --track). Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-09t2024: Fix &&-chaining and a couple of typosLibravatar Johan Herland1-3/+3
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-05Merge branch 'nd/fetch-pack-shallow-fix' into maintLibravatar Junio C Hamano1-0/+16
The recent "short-cut clone connectivity check" topic broke a shallow repository when a fetch operation tries to auto-follow tags. * nd/fetch-pack-shallow-fix: fetch-pack: do not remove .git/shallow file when --depth is not specified
2013-09-03Make setup_git_env() resolve .git file when $GIT_DIR is not specifiedLibravatar Nguyễn Thái Ngọc Duy1-0/+4
This makes reinitializing on a .git file repository work. This is probably the only case that setup_git_env() (via set_git_dir()) is called on a .git file. Other cases in setup_git_dir_gently() and enter_repo() both cover .git file case explicitly because they need to verify the target repo is valid. Reported-by: Ximin Luo <infinity0@gmx.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-28mailmap: handle mailmap blobs without trailing newlinesLibravatar Jeff King1-1/+15
The read_mailmap_buf function reads each line of the mailmap using strchrnul, like: const char *end = strchrnul(buf, '\n'); unsigned long linelen = end - buf + 1; But that's off-by-one when we actually hit the NUL byte; our line does not have a terminator, and so is only "end - buf" bytes long. As a result, when we subtract the linelen from the total len, we end up with (unsigned long)-1 bytes left in the buffer, and we start reading random junk from memory. We could fix it with: unsigned long linelen = end - buf + !!*end; but let's take a step back for a moment. It's questionable in the first place for a function that takes a buffer and length to be using strchrnul. But it works because we only have one caller (and are only likely to ever have this one), which is handing us data from read_sha1_file. Which means that it's always NUL-terminated. Instead of tightening the assumptions to make the buffer/length pair work for a caller that doesn't actually exist, let's let loosen the assumptions to what the real caller has: a modifiable, NUL-terminated string. This makes the code simpler and shorter (because we don't have to correlate strchrnul with the length calculation), correct (because the code with the off-by-one just goes away), and more efficient (we can drop the extra allocation we needed to create NUL-terminated strings for each line, and just terminate in place). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-28Add testcase for needless objects during a shallow fetchLibravatar Matthijs Kooijman1-0/+11
This is a testcase that checks for a problem where, during a specific shallow fetch where the client does not have any commits that are a successor of the new shallow root (i.e., the fetch creates a new detached piece of history), the server would simply send over _all_ objects, instead of taking into account the objects already present in the client. The actual problem was fixed by a recent patch series by Nguyễn Thái Ngọc Duy already. Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-28upload-pack: delegate rev walking in shallow fetch to pack-objectsLibravatar Nguyễn Thái Ngọc Duy1-3/+0
upload-pack has a special revision walking code for shallow recipients. It works almost like the similar code in pack-objects except: 1. in upload-pack, graft points could be added for deepening; 2. also when the repository is deepened, the shallow point will be moved further away from the tip, but the old shallow point will be marked as edge to produce more efficient packs. See 6523078 (make shallow repository deepening more network efficient - 2009-09-03). Pass the file to pack-objects via --shallow-file. This will override $GIT_DIR/shallow and give pack-objects the exact repository shape that upload-pack has. mark edge commits by revision command arguments. Even if old shallow points are passed as "--not" revisions as in this patch, they will not be picked up by mark_edges_uninteresting() because this function looks up to parents for edges, while in this case the edge is the children, in the opposite direction. This will be fixed in an later patch when all given uninteresting commits are marked as edges. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25rebase -i: fix short SHA-1 collisionLibravatar Junio C Hamano1-1/+1
The 'todo' sheet for interactive rebase shows abbreviated SHA-1's and then performs its operations upon those shortened values. This can lead to an abort if the SHA-1 of a reworded or edited commit is no longer unique within the abbreviated SHA-1 space and a subsequent SHA-1 in the todo list has the same abbreviated value. For example: edit f00dfad first pick badbeef second If, after editing, the new SHA-1 of "first" also has prefix badbeef, then the subsequent 'pick badbeef second' will fail since badbeef is no longer a unique SHA-1 abbreviation: error: short SHA1 badbeef is ambiguous. fatal: Needed a single revision Invalid commit name: badbeef Fix this problem by expanding the SHA-1's in the todo list before performing the operations. [es: also collapse & expand SHA-1's for --edit-todo; respect core.commentchar in transform_todo_ids(); compose commit message] Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25t3404: rebase -i: demonstrate short SHA-1 collisionLibravatar Eric Sunshine1-0/+24
The 'todo' sheet for interactive rebase shows abbreviated SHA-1's and then performs its operations upon those shortened values. This can lead to an abort if the SHA-1 of a reworded or edited commit is no longer unique within the abbreviated SHA-1 space and a subsequent SHA-1 in the todo list has the same abbreviated value. For example: edit f00dfad first pick badbeef second If, after editing, the new SHA-1 of "first" also has prefix badbeef, then the subsequent 'pick badbeef second' will fail since badbeef is no longer a unique SHA-1 abbreviation: error: short SHA1 badbeef is ambiguous. fatal: Needed a single revision Invalid commit name: badbeef Demonstrate this problem with a couple of specially crafted commits which initially have distinct abbreviated SHA-1's, but for which the abbreviated SHA-1's collide after a simple rewording of the first commit's message. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25t3404: make tests more self-containedLibravatar Eric Sunshine1-2/+63
As its very first action, t3404 installs (via set_fake_editor) a specialized $EDITOR which simplifies automated 'rebase -i' testing. Many tests rely upon this setting, thus tests which need a different editor must take extra care upon completion to restore $EDITOR in order to avoid breaking following tests. This places extra burden upon such tests and requires that they undesirably have extra knowledge about surrounding tests. Ease this burden by having each test install the $EDITOR it requires, rather than relying upon a global setting. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25fetch-pack: do not remove .git/shallow file when --depth is not specifiedLibravatar Nguyễn Thái Ngọc Duy1-0/+16
fetch_pack() can remove .git/shallow file when a shallow repository becomes a full one again. This behavior is triggered incorrectly when tags are also fetched because fetch_pack() will be called twice. At the first fetch_pack() call: - shallow_lock is set up - alternate_shallow_file points to shallow_lock.filename, which is "shallow.lock" - commit_lock_file is called, which sets shallow_lock.filename to "". alternate_shallow_file also becomes "" because it points to the same memory. At the second call, setup_alternate_shallow() is not called and alternate_shallow_file remains "". It's mistaken as unshallow case and .git/shallow is removed. The end result is a broken repository. Fix this by always initializing alternate_shallow_file when fetch_pack() is called. As an extra measure, check if args->depth > 0 before commit/rollback shallow file. Reported-by: Kacper Kornet <kornet@camk.edu.pl> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-24commit: search author pattern against mailmapLibravatar Antoine Pelisse1-0/+11
"git commit --author=$name" sets the author to one whose name matches the given string from existing commits, when $name is not in the "Name <e-mail>" format. However, it does not honor the mailmap to use the canonical name for the author found this way. Fix it by telling the logic to find a matching existing author to honor the mailmap, and use the name and email after applying the mailmap. Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-23dir.c::test_one_path(): work around directory_exists_in_index_icase() breakageLibravatar Eric Sunshine1-6/+9
directory_exists_in_index() takes pathname and its length, but its helper function directory_exists_in_index_icase() reads one byte beyond the end of the pathname and expects there to be a '/'. This needs to be fixed, as that one-byte-beyond-the-end location may not even be readable, possibly by not registering directories to name hashes with trailing slashes. In the meantime, update the new caller added recently to treat_one_path() to make sure that the path buffer it gives the function is one byte longer than the path it is asking the function about by appending a slash to it. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-21t9902-completion.sh: old Bash still does not support array+=('') notationLibravatar Brandon Casey1-1/+1
Old Bash (3.0) which is distributed with RHEL 4.X and other ancient platforms that are still in wide use, does not understand the array+=() notation. Let's use an explicit assignment to the new array element which works everywhere, like: array[${#array[@]}+1]='' The right-hand side '' is not strictly necessary, but in this case I think it is more clear. Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-21rebase --preserve-merges: ignore "merge.log" configLibravatar Ralf Thielow1-0/+23
When "merge.log" config is set, "rebase --preserve-merges" will add the log lines to the message of the rebased merge commit. A rebase should not modify a commit message automatically. Teach "git-rebase" to ignore that configuration by passing "--no-log" to the git-merge call. Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-20xread, xwrite: limit size of IO to 8MBLibravatar Steffen Prohaska1-0/+14
Checking out 2GB or more through an external filter (see test) fails on Mac OS X 10.8.4 (12E55) for a 64-bit executable with: error: read from external filter cat failed error: cannot feed the input to external filter cat error: cat died of signal 13 error: external filter cat failed 141 error: external filter cat failed The reason is that read() immediately returns with EINVAL when asked to read more than 2GB. According to POSIX [1], if the value of nbyte passed to read() is greater than SSIZE_MAX, the result is implementation-defined. The write function has the same restriction [2]. Since OS X still supports running 32-bit executables, the 32-bit limit (SSIZE_MAX = INT_MAX = 2GB - 1) seems to be also imposed on 64-bit executables under certain conditions. For write, the problem has been addressed earlier [6c642a]. Address the problem for read() and write() differently, by limiting size of IO chunks unconditionally on all platforms in xread() and xwrite(). Large chunks only cause problems, like causing latencies when killing the process, even if OS X was not buggy. Doing IO in reasonably sized smaller chunks should have no negative impact on performance. The compat wrapper clipped_write() introduced earlier [6c642a] is not needed anymore. It will be reverted in a separate commit. The new test catches read and write problems. Note that 'git add' exits with 0 even if it prints filtering errors to stderr. The test, therefore, checks stderr. 'git add' should probably be changed (sometime in another commit) to exit with nonzero if filtering fails. The test could then be changed to use test_must_fail. Thanks to the following people for suggestions and testing: Johannes Sixt <j6t@kdbg.org> John Keeping <john@keeping.me.uk> Jonathan Nieder <jrnieder@gmail.com> Kyle J. McKay <mackyle@gmail.com> Linus Torvalds <torvalds@linux-foundation.org> Torsten Bögershausen <tboegi@web.de> [1] http://pubs.opengroup.org/onlinepubs/009695399/functions/read.html [2] http://pubs.opengroup.org/onlinepubs/009695399/functions/write.html [6c642a] commit 6c642a878688adf46b226903858b53e2d31ac5c3 compate/clipped-write.c: large write(2) fails on Mac OS X/XNU Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-19avoid segfault on submodule.*.path set to an empty "true"Libravatar Jharrod LaFon1-0/+10
Git fails due to a segmentation fault if a submodule path is empty. Here is an example .gitmodules that will cause a segmentation fault: [submodule "foo-module"] path url = http://host/repo.git $ git status Segmentation fault (core dumped) This is because the parsing of "submodule.*.path" is not prepared to see a value-less "true" and assumes that the value is always non-NULL (parsing of "ignore" has the same problem). Fix it by checking the NULL-ness of value and complain with config_error_nonbool(). Signed-off-by: Jharrod LaFon <jlafon@eyesopen.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-15t3010: update to demonstrate "ls-files -k" optimization pitfallsLibravatar Junio C Hamano1-3/+9
An earlier draft of the previous step used cache_name_exists() to check the directory we were looking at, which missed the second case described in its log message. Demonstrate why it is not sufficient. Signed-off-by: Junio C Hamano <gitster@pobox.com>