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2011-12-15checkout_merged(): squelch false warning from some gccLibravatar Junio C Hamano1-1/+1
gcc 4.6.2 (there may be others) does not realize that the variable "mode" can never be used uninitialized in this function and issues a false warning under -Wuninitialized option. Squelch it with an unnecessary initialization; it is not like a single assignment matters to the performance in this codepath that writes out to the filesystem with checkout_entry() anyway. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-06checkout -m: no need to insist on having all 3 stagesLibravatar Junio C Hamano1-24/+36
The content level merge machinery ll_merge() is prepared to merge correctly in "both sides added differently" case by using an empty blob as if it were the common ancestor. "checkout -m" could do the same, but didn't bother supporting it and instead insisted on having all three stages. Reported-by: Pete Harlan Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-13revert: Hide '-r' option in default usageLibravatar Ramkumar Ramachandra1-1/+2
The '-r' command-line option is a no-op provided only for backward compatiblity since abd6970 (cherry-pick: make -r the default, 2006-10-05), and somehow ended up surviving across reimplementation in C at 9509af6 (Make git-revert & git-cherry-pick a builtin, 2007-03-01) and another rewrite of the command line parser at f810379 (Make builtin-revert.c use parse_options, 2007-10-07). We should have stopped advertising the option long time ago. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-06Merge branch 'jk/maint-remote-mirror-safer'Libravatar Junio C Hamano1-13/+49
* jk/maint-remote-mirror-safer: remote: deprecate --mirror remote: separate the concept of push and fetch mirrors remote: disallow some nonsensical option combinations
2011-04-04Merge branch 'jl/submodule-fetch-on-demand'Libravatar Junio C Hamano1-12/+36
* jl/submodule-fetch-on-demand: fetch/pull: Describe --recurse-submodule restrictions in the BUGS section submodule update: Don't fetch when the submodule commit is already present fetch/pull: Don't recurse into a submodule when commits are already present Submodules: Add 'on-demand' value for the 'fetchRecurseSubmodule' option config: teach the fetch.recurseSubmodules option the 'on-demand' value fetch/pull: Add the 'on-demand' value to the --recurse-submodules option fetch/pull: recurse into submodules when necessary Conflicts: builtin/fetch.c submodule.c
2011-04-03sparse: Fix errors and silence warningsLibravatar Stephen Boyd3-5/+5
* load_file() returns a void pointer but is using 0 for the return value * builtin/receive-pack.c forgot to include builtin.h * packet_trace_prefix can be marked static * ll_merge takes a pointer for its last argument, not an int * crc32 expects a pointer as the second argument but Z_NULL is defined to be 0 (see 38f4d13 sparse fix: Using plain integer as NULL pointer, 2006-11-18 for more info) Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-01Merge branch 'nd/init-gitdir'Libravatar Junio C Hamano2-4/+72
* nd/init-gitdir: init, clone: support --separate-git-dir for .git file git-init.txt: move description section up Conflicts: builtin/clone.c
2011-04-01Merge branch 'jc/merge-sans-branch'Libravatar Junio C Hamano1-2/+40
* jc/merge-sans-branch: merge: merge with the default upstream branch without argument merge: match the help text with the documentation Conflicts: builtin/merge.c
2011-04-01Merge branch 'jr/grep-en-config'Libravatar Junio C Hamano1-0/+13
* jr/grep-en-config: grep: allow -E and -n to be turned on by default via configuration
2011-04-01Merge branch 'ab/i18n-st'Libravatar Junio C Hamano24-661/+694
* ab/i18n-st: (69 commits) i18n: git-shortlog basic messages i18n: git-revert split up "could not revert/apply" message i18n: git-revert literal "me" messages i18n: git-revert "Your local changes" message i18n: git-revert basic messages i18n: git-notes GIT_NOTES_REWRITE_MODE error message i18n: git-notes basic commands i18n: git-gc "Auto packing the repository" message i18n: git-gc basic messages i18n: git-describe basic messages i18n: git-clean clean.requireForce messages i18n: git-clean basic messages i18n: git-bundle basic messages i18n: git-archive basic messages i18n: git-status "renamed: " message i18n: git-status "Initial commit" message i18n: git-status "Changes to be committed" message i18n: git-status shortstatus messages i18n: git-status "nothing to commit" messages i18n: git-status basic messages ... Conflicts: builtin/branch.c builtin/checkout.c builtin/clone.c builtin/commit.c builtin/grep.c builtin/merge.c builtin/push.c builtin/revert.c t/t3507-cherry-pick-conflict.sh t/t7607-merge-overwrite.sh
2011-04-01Merge branch 'jk/pull-into-empty'Libravatar Junio C Hamano1-1/+1
* jk/pull-into-empty: pull: do not clobber untracked files on initial pull merge: merge unborn index before setting ref
2011-03-30remote: deprecate --mirrorLibravatar Jeff King1-1/+7
The configuration created by plain --mirror is dangerous and useless, and we now have --mirror=fetch and --mirror=push to replace it. Let's warn the user. One alternative to this is to try to guess which type the user wants. In a non-bare repository, a fetch mirror doesn't make much sense, since it would overwrite local commits. But in a bare repository, you might use either type, or even both (e.g., if you are acting as an intermediate drop-point across two disconnected networks). So rather than try for complex heuristics, let's keep it simple. The user knows what they're trying to do, so let them tell us. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-30remote: separate the concept of push and fetch mirrorsLibravatar Jeff King1-13/+38
git-remote currently has one option, "--mirror", which sets up mirror configuration which can be used for either fetching or pushing. It looks like this: [remote "mirror"] url = wherever fetch = +refs/*:refs/* mirror = true However, a remote like this can be dangerous and confusing. Specifically: 1. If you issue the wrong command, it can be devastating. You are not likely to "push" when you meant to "fetch", but "git remote update" will try to fetch it, even if you intended the remote only for pushing. In either case, the results can be quite destructive. An unintended push will overwrite or delete remote refs, and an unintended fetch can overwrite local branches. 2. The tracking setup code can produce confusing results. The fetch refspec above means that "git checkout -b new master" will consider refs/heads/master to come from the remote "mirror", even if you only ever intend to push to the mirror. It will set up the "new" branch to track mirror's refs/heads/master. 3. The push code tries to opportunistically update tracking branches. If you "git push mirror foo:bar", it will see that we are updating mirror's refs/heads/bar, which corresponds to our local refs/heads/bar, and will update our local branch. To solve this, we split the concept into "push mirrors" and "fetch mirrors". Push mirrors set only remote.*.mirror, solving (2) and (3), and making an accidental fetch write only into FETCH_HEAD. Fetch mirrors set only the fetch refspec, meaning an accidental push will not force-overwrite or delete refs on the remote end. The new syntax is "--mirror=<fetch|push>". For compatibility, we keep "--mirror" as-is, setting up both types simultaneously. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-30remote: disallow some nonsensical option combinationsLibravatar Jeff King1-0/+5
It doesn't make sense to use "-m" on a mirror, since "-m" sets up the HEAD symref in the remotes namespace, but with mirror, we are by definition not using a remotes namespace. Similarly, it does not make much sense to specify refspecs with --mirror. For a mirror you plan to push to, those refspecs will be ignored. For a mirror you are fetching from, there is no point in mirroring, since the refspec specifies everything you want to grab. There is one case where "--mirror -t <X>" would be useful. Because <X> is used as-is in the refspec, and because we append it to to refs/, you could mirror a subset of the hierarchy by doing: git remote add --mirror -t 'tags/*' But using anything besides a single branch as an argument to "-t" is not documented and only happens to work, so closing it off is not a serious regression. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-30grep: allow -E and -n to be turned on by default via configurationLibravatar Joe Ratterman1-0/+13
Add two configration variables grep.extendedRegexp and grep.lineNumbers to allow the user to skip typing -E and -n on the command line, respectively. Scripts that are meant to be used by random users and/or in random repositories now have use -G and/or --no-line-number options as appropriately to override the settings in the repository or user's ~/.gitconfig settings. Just because the script didn't say "git grep -n" no longer guarantees that the output from the command will not have line numbers. Signed-off-by: Joe Ratterman <jratt0@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-29Merge branch 'jc/fetch-progressive-stride'Libravatar Junio C Hamano1-4/+5
* jc/fetch-progressive-stride: Fix potential local deadlock during fetch-pack
2011-03-29Merge branches 'sp/maint-fetch-pack-stop-early' and ↵Libravatar Junio C Hamano1-1/+2
'sp/maint-upload-pack-stop-early' * sp/maint-fetch-pack-stop-early: enable "no-done" extension only when fetching over smart-http * sp/maint-upload-pack-stop-early: enable "no-done" extension only when serving over smart-http
2011-03-29Revert two "no-done" revertsLibravatar Junio C Hamano1-3/+15
Last night I had to make these two emergency reverts, but now we have a better understanding of which part of the topic was broken, let's get rid of the revert to fix it correctly. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-29Fix potential local deadlock during fetch-packLibravatar Junio C Hamano1-4/+5
The fetch-pack/upload-pack protocol relies on the underlying transport (local pipe or TCP socket) to have enough slack to allow one window worth of data in flight without blocking the writer. Traditionally we always relied on being able to have two windows of 32 "have"s in flight (roughly 3k bytes) to stream. The recent "progressive-stride" change allows "fetch-pack" to send up to 1024 "have"s without reading any response from "upload-pack". The outgoing pipe of "upload-pack" can be clogged with many ACK and NAK that are unread, while "fetch-pack" is still stuffing its outgoing pipe with more "have"s, leading to a deadlock. Revert the change unless we are in stateless rpc (aka smart-http) mode, as using a large window full of "have"s is still a good way to help reduce the number of back-and-forth, and there is no buffering issue there (it is strictly "ping-pong" without an overlap). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-29enable "no-done" extension only when fetching over smart-httpLibravatar Junio C Hamano1-1/+2
When 'no-done' protocol extension is used, the upload-pack (i.e. the server side) process stops listening to the fetch-pack after issuing the final NAK, and starts sending the generated pack data back, but there may be more "have" send by the latter in flight that the fetch-pack is expecting to be responded with ACK/NAK. This will typically result in a deadlock (both will block on write that the other end never reads) or SIGPIPE on the fetch-pack end (upload-pack will finish writing a small pack and goes away). Disable it unless fetch-pack is running under smart-http, where there is no such streaming issue. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn O. Pearce <spearce@spearce.org>
2011-03-28Revert "fetch-pack: Implement no-done capability"Libravatar Junio C Hamano1-15/+3
This reverts commit 761ecf0bc7b6cddf311f00877c59e6381cdbdeea.
2011-03-28Merge branch 'maint'Libravatar Junio C Hamano1-1/+1
* maint: git tag documentation grammar fixes and readability updates grep: Add the option '--line-number'
2011-03-28grep: Add the option '--line-number'Libravatar Joe Ratterman1-1/+1
This is a synonym for the existing '-n' option, matching GNU grep. Signed-off-by: Joe Ratterman <jratt0@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-26Merge branch 'mg/rev-list-n-parents'Libravatar Junio C Hamano3-1/+9
* mg/rev-list-n-parents: tests: avoid nonportable {foo,bar} glob rev-list --min-parents,--max-parents: doc, test and completion revision.c: introduce --min-parents and --max-parents options t6009: use test_commit() from test-lib.sh
2011-03-26Merge branch 'js/remove-unused-variables'Libravatar Junio C Hamano2-6/+1
* js/remove-unused-variables: Remove unused variables
2011-03-26Merge branch 'jc/index-update-if-able'Libravatar Junio C Hamano2-13/+3
* jc/index-update-if-able: update $GIT_INDEX_FILE when there are racily clean entries diff/status: refactor opportunistic index update
2011-03-26Merge branch 'jk/checkout-orphan-warning'Libravatar Junio C Hamano1-1/+17
* jk/checkout-orphan-warning: checkout: tweak detached-orphan warning format checkout: clear commit marks after detached-orphan check checkout: add basic tests for detached-orphan warning
2011-03-26Merge branch 'jc/fetch-progressive-stride'Libravatar Junio C Hamano1-3/+18
* jc/fetch-progressive-stride: fetch-pack: use smaller handshake window for initial request fetch-pack: progressively use larger handshake windows fetch-pack: factor out hardcoded handshake window size Conflicts: builtin/fetch-pack.c
2011-03-25merge: merge unborn index before setting refLibravatar Jeff King1-1/+1
When we merge into an unborn branch, there are basically two steps: 1. Write the sha1 of the new commit into the ref pointed to by HEAD. 2. Update the index with the new content, and check it out to the working tree. We currently do them in this order. However, (2) is the step that is much more likely to fail, since it can be blocked by things like untracked working tree files. When it does, the merge fails and we are left with an empty index but an updated HEAD. This patch switches the order, so that a failure in updating the index leaves us unchanged. Of course, a failure in updating the ref now leaves us with an updated index and mis-matched HEAD. That is arguably not much better, but it is probably less likely to actually happen. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-24merge: merge with the default upstream branch without argumentLibravatar Junio C Hamano1-1/+38
"git merge" without specifying any commit is a no-op by default. A new option merge.defaultupstream can be set to true to cause such an invocation of the command to merge the upstream branches configured for the current branch by using their last observed values stored in their remote tracking branches. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-24merge: match the help text with the documentationLibravatar Jared Hance1-2/+3
We used to be very casual in terminology and used <branch>, <ref> and <rev> more or less interchangeably with <commit>. Match the help text given by "git merge -h" with that of the documentation. Signed-off-by: Jared Hance <jaredhance@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-23Merge branch 'jn/maint-c99-format'Libravatar Junio C Hamano1-26/+22
* jn/maint-c99-format: unbreak and eliminate NO_C99_FORMAT mktag: avoid %td in format string
2011-03-23Merge branch 'lt/default-abbrev'Libravatar Junio C Hamano1-1/+5
* lt/default-abbrev: Rename core.abbrevlength back to core.abbrev Make the default abbrev length configurable
2011-03-23revision.c: introduce --min-parents and --max-parents optionsLibravatar Michael J Gruber3-1/+9
Introduce --min-parents and --max-parents options which limit the revisions to those commits which have at least (or at most) that many commits, where negative arguments for --max-parents= denote infinity (i.e. no upper limit). In particular: --max-parents=1 is the same as --no-merges; --min-parents=2 is the same as --merges; --max-parents=0 shows only roots; and --min-parents=3 shows only octopus merges Using --min-parents=n and --max-parents=m with n>m gives you what you ask for (i.e. nothing) for obvious reasons, just like when you give --merges (show only merge commits) and --no-merges (show only non-merge commits) at the same time. Also, introduce --no-min-parents and --no-max-parents to do the obvious thing for convenience. We compute the number of parents only when we limit by that, so there is no performance impact when there are no limiters. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-22Merge branch 'mg/rev-list-one-side-only'Libravatar Junio C Hamano1-12/+2
* mg/rev-list-one-side-only: git-log: put space after commit mark t6007: test rev-list --cherry log --cherry: a synonym rev-list: documentation and test for --cherry-mark revision.c: introduce --cherry-mark rev-list/log: factor out revision mark generation rev-list: --left/right-only are mutually exclusive rev-list: documentation and test for --left/right-only t6007: Make sure we test --cherry-pick revlist.c: introduce --left/right-only for unsymmetric picking
2011-03-22Merge branch 'jn/test-sanitize-git-env'Libravatar Junio C Hamano1-1/+1
* jn/test-sanitize-git-env: tests: scrub environment of GIT_* variables config: drop support for GIT_CONFIG_NOGLOBAL gitattributes: drop support for GIT_ATTR_NOGLOBAL tests: suppress system gitattributes tests: stop worrying about obsolete environment variables
2011-03-22Merge branch 'sp/maint-fetch-pack-stop-early'Libravatar Junio C Hamano1-2/+16
* sp/maint-fetch-pack-stop-early: fetch-pack: Implement no-done capability fetch-pack: Finish negotation if remote replies "ACK %s ready"
2011-03-22Merge branch 'jc/maint-fetch-alt'Libravatar Junio C Hamano2-32/+15
* jc/maint-fetch-alt: fetch-pack: objects in our alternates are available to us refs_from_alternate: helper to use refs from alternates Conflicts: builtin/receive-pack.c
2011-03-22Remove unused variablesLibravatar Johannes Schindelin2-6/+1
Noticed by gcc 4.6.0. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-22Fix sparse warningsLibravatar Stephen Boyd20-29/+22
Fix warnings from 'make check'. - These files don't include 'builtin.h' causing sparse to complain that cmd_* isn't declared: builtin/clone.c:364, builtin/fetch-pack.c:797, builtin/fmt-merge-msg.c:34, builtin/hash-object.c:78, builtin/merge-index.c:69, builtin/merge-recursive.c:22 builtin/merge-tree.c:341, builtin/mktag.c:156, builtin/notes.c:426 builtin/notes.c:822, builtin/pack-redundant.c:596, builtin/pack-refs.c:10, builtin/patch-id.c:60, builtin/patch-id.c:149, builtin/remote.c:1512, builtin/remote-ext.c:240, builtin/remote-fd.c:53, builtin/reset.c:236, builtin/send-pack.c:384, builtin/unpack-file.c:25, builtin/var.c:75 - These files have symbols which should be marked static since they're only file scope: submodule.c:12, diff.c:631, replace_object.c:92, submodule.c:13, submodule.c:14, trace.c:78, transport.c:195, transport-helper.c:79, unpack-trees.c:19, url.c:3, url.c:18, url.c:104, url.c:117, url.c:123, url.c:129, url.c:136, thread-utils.c:21, thread-utils.c:48 - These files redeclare symbols to be different types: builtin/index-pack.c:210, parse-options.c:564, parse-options.c:571, usage.c:49, usage.c:58, usage.c:63, usage.c:72 - These files use a literal integer 0 when they really should use a NULL pointer: daemon.c:663, fast-import.c:2942, imap-send.c:1072, notes-merge.c:362 While we're in the area, clean up some unused #includes in builtin files (mostly exec_cmd.h). Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-21diff/status: refactor opportunistic index updateLibravatar Junio C Hamano2-13/+3
When we had to refresh the index internally before running diff or status, we opportunistically updated the $GIT_INDEX_FILE so that later invocation of git can use the lstat(2) we already did in this invocation. Make them share a helper function to do so. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-20fetch-pack: use smaller handshake window for initial requestLibravatar Junio C Hamano1-2/+4
Start the initial request small by halving the INITIAL_FLUSH (we will try to stay one window ahead of the server, so we would end up giving twice as many "have" in flight at the very beginning). We may want to tweak these values even more, taking MTU into account. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn Pearce <spearce@spearce.org>
2011-03-20fetch-pack: progressively use larger handshake windowsLibravatar Junio C Hamano1-1/+6
The client has to dig the history deeper when more recent parts of its history do not have any overlap with the server it is fetching from. Make the handshake window exponentially larger as we dig deeper, with a reasonable upper cap. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn Pearce <spearce@spearce.org>
2011-03-20fetch-pack: factor out hardcoded handshake window sizeLibravatar Junio C Hamano1-3/+11
The "git fetch" client presents the most recent 32 commits it has to the server and gives a chance to the server to say "ok, we heard enough", and continues reporting what it has in chunks of 32 commits, digging its history down to older commits. Move the hardcoded size of the handshake window outside the code, so that we can tweak it more easily. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn Pearce <spearce@spearce.org>
2011-03-20checkout: tweak detached-orphan warning formatLibravatar Jeff King1-1/+4
When orphaning a commit on a detached HEAD, the warning currently looks like: Warning: you are leaving 3 commits behind, not connected to any of your branches: - commit subject 1 - commit subject 2 - commit subject 3 If you want to keep them by creating a new branch, this may be a good time to do so with: git branch new_branch_name 933a615ab0bc566dcfd8c01ec8af159f770d3fe5 Instead of using the "-" list, let's provide a more traditional oneline format, with the abbreviated sha1 before each subject. Users are accustomed to seeing commits in this format, and having the sha1 of each commit can be useful if you want to cherry-pick instead of creating a new branch. The new format looks like: Warning: you are leaving 3 commits behind, not connected to any of your branches: 933a615 commit subject 1 824fcde commit subject 2 fa49b1a commit subject 3 Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-20checkout: clear commit marks after detached-orphan checkLibravatar Jeff King1-0/+13
When leaving a detached HEAD, we do a revision walk to make sure the commit we are leaving isn't being orphaned. However, this leaves crufty marks in the commit objects which can confuse later walkers, like the one in stat_tracking_info. Let's clean up after ourselves to prevent this conflict. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-19Merge branch 'mm/maint-log-n-with-diff-filtering'Libravatar Junio C Hamano1-1/+7
* mm/maint-log-n-with-diff-filtering: log: fix --max-count when used together with -S or -G
2011-03-19Merge branch 'js/rerere-forget-always-take-pathspec'Libravatar Junio C Hamano1-2/+5
* js/rerere-forget-always-take-pathspec: rerere forget: deprecate invocation without pathspec
2011-03-19Merge branch 'uk/ls-remote-in-get-remote-url'Libravatar Junio C Hamano1-0/+11
* uk/ls-remote-in-get-remote-url: git-request-pull: open-code the only invocation of get_remote_url get_remote_url(): use the same data source as ls-remote to get remote urls
2011-03-19Merge branch 'jn/status-translatable'Libravatar Junio C Hamano1-29/+30
* jn/status-translatable: commit, status: use status_printf{,_ln,_more} helpers commit: refer to commit template as s->fp wt-status: add helpers for printing wt-status lines Conflicts: builtin/commit.c