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2015-07-13Merge branch 'es/worktree-add'Libravatar Junio C Hamano2-153/+199
Update to the "linked checkout" in 2.5.0-rc1. Instead of "checkout --to" that does not do what "checkout" normally does, move the functionality to "git worktree add". * es/worktree-add: (24 commits) Revert "checkout: retire --ignore-other-worktrees in favor of --force" checkout: retire --ignore-other-worktrees in favor of --force worktree: add: auto-vivify new branch when <branch> is omitted worktree: add: make -b/-B default to HEAD when <branch> is omitted worktree: extract basename computation to new function checkout: require worktree unconditionally checkout: retire --to option tests: worktree: retrofit "checkout --to" tests for "worktree add" worktree: add -b/-B options worktree: add --detach option worktree: add --force option worktree: introduce "add" command checkout: drop 'checkout_opts' dependency from prepare_linked_checkout checkout: make --to unconditionally verbose checkout: prepare_linked_checkout: drop now-unused 'new' argument checkout: relocate --to's "no branch specified" check checkout: fix bug with --to and relative HEAD Documentation/git-worktree: add EXAMPLES section Documentation/git-worktree: add high-level 'lock' overview Documentation/git-worktree: split technical info from general description ...
2015-07-13Merge branch 'nd/multiple-work-trees'Libravatar Junio C Hamano4-112/+145
"git checkout [<tree-ish>] <paths>" spent unnecessary cycles checking if the current branch was checked out elsewhere, when we know we are not switching the branches ourselves. * nd/multiple-work-trees: worktree: new place for "git prune --worktrees" checkout: don't check worktrees when not necessary
2015-07-13Merge branch 'ss/clone-guess-dir-name-simplify'Libravatar Junio C Hamano1-13/+6
Code simplification. * ss/clone-guess-dir-name-simplify: clone: simplify string handling in guess_dir_name()
2015-07-12Revert "checkout: retire --ignore-other-worktrees in favor of --force"Libravatar Junio C Hamano2-4/+6
This reverts commit 0d1a1517835a10818f2d40d8780a268dbb5e20ce. When trying to switch to a different branch, that happens to be checked out in another working tree, the user shouldn't have to give up the other safety measures (like protecting the local changes that overlap the difference between the branches) while defeating the "no two checkouts of the same branch" safety. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-10Merge branch 'ls/hint-rev-list-count'Libravatar Junio C Hamano1-0/+1
* ls/hint-rev-list-count: rev-list: add --count to usage guide
2015-07-10Merge branch 'jk/rev-list-no-bitmap-while-pruning'Libravatar Junio C Hamano1-1/+1
A minor bugfix when pack bitmap is used with "rev-list --count". * jk/rev-list-no-bitmap-while-pruning: rev-list: disable --use-bitmap-index when pruning commits
2015-07-09Merge branch 'jc/fix-alloc-sortbuf-in-index-pack'Libravatar Junio C Hamano1-8/+8
A hotfix for what is in 2.5-rc but not in 2.4. * jc/fix-alloc-sortbuf-in-index-pack: index-pack: fix allocation of sorted_by_pos array
2015-07-09clone: simplify string handling in guess_dir_name()Libravatar Sebastian Schuberth1-13/+6
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-07checkout: retire --ignore-other-worktrees in favor of --forceLibravatar Eric Sunshine2-6/+4
As a safeguard, checking out a branch already checked out by a different worktree is disallowed. This behavior can be overridden with --ignore-other-worktrees, however, this option is neither obvious nor particularly discoverable. As a common safeguard override, --force is more likely to come to mind. Therefore, overload it to also suppress the check for a branch already checked out elsewhere. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-07worktree: add: auto-vivify new branch when <branch> is omittedLibravatar Eric Sunshine1-2/+6
As a convenience, when <branch> is omitted from "git worktree <path> <branch>" and neither -b nor -B is used, automatically create a new branch named after <path>, as if "-b $(basename <path>)" was specified. Thus, "git worktree add ../hotfix" creates a new branch named "hotfix" and associates it with new worktree "../hotfix". Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: add: make -b/-B default to HEAD when <branch> is omittedLibravatar Eric Sunshine1-2/+4
As a convenience, like "git branch" and "git checkout -b", make "git worktree add -b <newbranch> <path> <branch>" default to HEAD when <branch> is omitted. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: extract basename computation to new functionLibravatar Eric Sunshine1-9/+20
A subsequent patch will also need to compute the basename of the new worktree, so factor out this logic into a new function. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: require worktree unconditionallyLibravatar Eric Sunshine1-2/+0
In order to allow linked worktree creation via "git checkout --to" from a bare repository, 3473ad0 (checkout: don't require a work tree when checking out into a new one, 2014-11-30) dropped git-checkout's unconditional NEED_WORK_TREE requirement and instead performed worktree setup conditionally based upon presence or absence of the --to option. Now that --to has been retired and git-checkout is no longer responsible for linked worktree creation, the NEED_WORK_TREE requirement can be re-instated. This effectively reverts 3473ad0, except for the tests it added which now check bare repository behavior of "git worktree add" instead. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: retire --to optionLibravatar Eric Sunshine2-166/+139
Now that "git worktree add" has achieved user-facing feature-parity with "git checkout --to", retire the latter. Move the actual linked worktree creation functionality, prepare_linked_checkout() and its helpers, verbatim from checkout.c to worktree.c. This effectively reverts changes to checkout.c by 529fef2 (checkout: support checking out into a new working directory, 2014-11-30) with the exception of merge_working_tree() and switch_branches() which still require specialized knowledge that a the checkout is occurring in a newly-created linked worktree (signaled to them by the private GIT_CHECKOUT_NEW_WORKTREE environment variable). Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: add -b/-B optionsLibravatar Eric Sunshine1-0/+11
One of git-worktree's roles is to populate the new worktree, much like git-checkout, and thus, for convenience, ought to support several of the same shortcuts. Toward this goal, add -b/-B options to create a new branch and check it out in the new worktree. (For brevity, only -b is mentioned in the synopsis; -B is omitted.) Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: add --detach optionLibravatar Eric Sunshine1-1/+4
One of git-worktree's roles is to populate the new worktree, much like git-checkout, and thus, for convenience, ought to support several of the same shortcuts. Toward this goal, add a --detach option to detach HEAD in the new worktree. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: add --force optionLibravatar Eric Sunshine1-1/+5
By default, "git worktree add" refuses to create a new worktree when the requested branch is already checked out elsewhere. Add a --force option to override this safeguard. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06worktree: introduce "add" commandLibravatar Eric Sunshine1-0/+31
The plan is to relocate "git checkout --to" functionality to "git worktree add". As a first step, introduce a bare-bones git-worktree "add" command along with documentation. At this stage, "git worktree add" merely invokes "git checkout --to" behind the scenes, but an upcoming patch will move the actual functionality (checkout.c:prepare_linked_checkout() and its helpers) to worktree.c. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: drop 'checkout_opts' dependency from prepare_linked_checkoutLibravatar Eric Sunshine1-4/+5
The plan is to relocate "git checkout --to" functionality to "git worktree add", however, worktree.c won't have access to the 'struct checkout_opts' passed to prepare_linked_worktree(), which it consults for the pathname of the new worktree and the argv[] of the command it should run to populate the new worktree. Facilitate relocation of prepare_linked_worktree() by instead having it accept the pathname and argv[] directly, thus eliminating the final references to 'struct checkout_opts'. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: make --to unconditionally verboseLibravatar Eric Sunshine1-2/+1
prepare_linked_checkout() respects git-checkout's --quiet flag, however, the plan is to relocate "git checkout --to" functionality to "git worktree add", and git-worktree does not (yet) have a --quiet flag. Consequently, make prepare_linked_checkout() unconditionally verbose to ease eventual code movement to worktree.c. (A --quiet flag can be added to git-worktree later if there is demand for it.) Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: prepare_linked_checkout: drop now-unused 'new' argumentLibravatar Eric Sunshine1-3/+2
The only references to 'new' were folded out by the last two patches. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: relocate --to's "no branch specified" checkLibravatar Eric Sunshine1-3/+4
The plan is to relocate "git checkout --to" functionality to "git worktree add", however, this check expects a 'struct branch_info' which git-worktree won't have at hand. It will, however, have access to its own command-line from which it can pick up the branch name. Therefore, as a preparatory step, rather than having prepare_linked_checkout() perform this check, make it the caller's responsibility. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06checkout: fix bug with --to and relative HEADLibravatar Eric Sunshine1-4/+12
Given "git checkout --to <path> HEAD~1", the new worktree's HEAD should begin life at the current branch's HEAD~1, however, it actually ends up at HEAD~2. This happens because: 1. git-checkout resolves HEAD~1 2. to satisfy is_git_directory(), prepare_linked_worktree() creates a HEAD for the new worktree with the value of the resolved HEAD~1 3. git-checkout re-invokes itself with the same arguments within the new worktree to populate the worktree 4. the sub git-checkout resolves HEAD~1 relative to its own HEAD, which is the resolved HEAD~1 from the original invocation, resulting unexpectedly and incorrectly in HEAD~2 (relative to the original) Fix this by unconditionally assigning the current worktree's HEAD as the value of the new worktree's HEAD. As a side-effect, this change also eliminates a dependence within prepare_linked_checkout() upon 'struct branch_info'. The plan is to eventually relocate "git checkout --to" functionality to "git worktree add", and worktree.c won't have knowledge of 'struct branch_info', so removal of this dependency is a step toward that goal. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-04index-pack: fix allocation of sorted_by_pos arrayLibravatar Junio C Hamano1-8/+8
When c6458e60 (index-pack: kill union delta_base to save memory, 2015-04-18) attempted to reduce the memory footprint of index-pack, one of the key thing it did was to keep track of ref-deltas and ofs-deltas separately. In fix_unresolved_deltas(), however it forgot that it now wants to look only at ref deltas in one place. The code allocated an array for nr_unresolved, which is sum of number of ref- and ofs-deltas minus nr_resolved, which may be larger or smaller than the number ref-deltas. Depending on nr_resolved, this was either under or over allocating. Also, the old code before this change had to use 'i' and 'n' because some of the things we see in the (old) deltas[] array we scanned with 'i' would not make it into the sorted_by_pos[] array in the old world order, but now because you have only ref delta in a separate ref_deltas[] array, they increment lock&step. We no longer need separate variables. And most importantly, we shouldn't pass the nr_unresolved parameter, as this number does not play a role in the working of this helper function. Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-01rev-list: disable --use-bitmap-index when pruning commitsLibravatar Jeff King1-1/+1
The reachability bitmaps do not have enough information to tell us which commits might have changed path "foo", so the current code produces wrong answers for: git rev-list --use-bitmap-index --count HEAD -- foo (it silently ignores the "foo" limiter). Instead, we should fall back to doing a normal traversal (it is OK to fall back rather than complain, because --use-bitmap-index is a pure optimization, and might not kick in for other reasons, such as there being no bitmaps in the repository). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-01rev-list: add --count to usage guideLibravatar Lawrence Siebert1-0/+1
--count should be mentioned in the usage guide, this updates code and documentation. Signed-off-by: Lawrence Siebert <lawrencesiebert@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-29worktree: new place for "git prune --worktrees"Libravatar Nguyễn Thái Ngọc Duy3-100/+134
Commit 23af91d (prune: strategies for linked checkouts - 2014-11-30) adds "--worktrees" to "git prune" without realizing that "git prune" is for object database only. This patch moves the same functionality to a new command "git worktree". Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
2015-06-25Merge branch 'nd/diff-i-t-a'Libravatar Junio C Hamano1-1/+0
* nd/diff-i-t-a: Revert "diff-lib.c: adjust position of i-t-a entries in diff"
2015-06-24Merge branch 'jk/index-pack-reduce-recheck'Libravatar Junio C Hamano1-1/+1
Disable "have we lost a race with competing repack?" check while receiving a huge object transfer that runs index-pack. * jk/index-pack-reduce-recheck: index-pack: avoid excessive re-reading of pack directory
2015-06-24Merge branch 'mh/reporting-broken-refs-from-for-each-ref'Libravatar Junio C Hamano1-0/+5
"git for-each-ref" reported "missing object" for 0{40} when it encounters a broken ref. The lack of object whose name is 0{40} is not the problem; the ref being broken is. * mh/reporting-broken-refs-from-for-each-ref: read_loose_refs(): treat NULL_SHA1 loose references as broken read_loose_refs(): simplify function logic for-each-ref: report broken references correctly t6301: new tests of for-each-ref error handling
2015-06-24Merge branch 'mh/fsck-reflog-entries'Libravatar Junio C Hamano1-14/+20
"git fsck" used to ignore missing or invalid objects recorded in reflog. * mh/fsck-reflog-entries: fsck: report errors if reflog entries point at invalid objects fsck_handle_reflog_sha1(): new function
2015-06-24Merge branch 'qn/blame-show-email'Libravatar Junio C Hamano1-1/+9
"git blame" learned blame.showEmail configuration variable. * qn/blame-show-email: blame: add blame.showEmail configuration
2015-06-24Merge branch 'jc/do-not-feed-tags-to-clear-commit-marks'Libravatar Junio C Hamano1-6/+6
"git format-patch --ignore-if-upstream A..B" did not like to be fed tags as boundary commits. * jc/do-not-feed-tags-to-clear-commit-marks: format-patch: do not feed tags to clear_commit_marks()
2015-06-24Merge branch 'jc/apply-reject-noop-hunk'Libravatar Junio C Hamano1-0/+3
"git apply" cannot diagnose a patch corruption when the breakage is to mark the length of the hunk shorter than it really is on the hunk header line "@@ -l,k +m,n @@"; one special case it could is when the hunk becomes no-op (e.g. k == n == 2 for two-line context patch output), and it learned how to do so. * jc/apply-reject-noop-hunk: apply: reject a hunk that does not do anything
2015-06-23Revert "diff-lib.c: adjust position of i-t-a entries in diff"Libravatar Junio C Hamano1-1/+0
This reverts commit d95d728aba06a34394d15466045cbdabdada58a2. It turns out that many other commands that need to interact with the result of running diff-files and diff-index, e.g. "git apply", "git rm", etc., need to be adjusted to the new world order it brings in. For example, it would break this sequence to correct a whitespace breakage in the parts you changed: git add -N file git diff --cached file | git apply --cached --whitespace=fix git checkout file In the old world order, "diff" showed a patch to modify an existing empty file by adding its full contents, and "apply" updated the index by modifying the existing empty blob (which is what an Intent-to-Add entry records in the index) with that patch. In the new world order, "diff" shows a patch to create a new file with its full contents, but because "apply" thinks that the i-t-a entry already exists in the index, it refused to accept a creation. Adjusting "apply" to this new world order is easy, but we need to assess the extent of the damage to the rest of the system the new world order brought in before going forward and adjust them all, after which we can resurrect the commit being reverted here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-16Merge branch 'jk/clone-dissociate' into maintLibravatar Junio C Hamano1-13/+4
Code clean-up. * jk/clone-dissociate: clone: reorder --dissociate and --reference options clone: use OPT_STRING_LIST for --reference
2015-06-16Merge branch 'ah/usage-strings' into maintLibravatar Junio C Hamano2-2/+2
A few usage string updates. * ah/usage-strings: blame, log: format usage strings similarly to those in documentation
2015-06-16Merge branch 'rs/janitorial' into maintLibravatar Junio C Hamano3-16/+4
Code clean-up. * rs/janitorial: dir: remove unused variable sb clean: remove unused variable buf use file_exists() to check if a file exists in the worktree
2015-06-16Merge branch 'dt/clean-pathspec-filter-then-lstat' into maintLibravatar Junio C Hamano1-3/+3
"git clean pathspec..." tried to lstat(2) and complain even for paths outside the given pathspec. * dt/clean-pathspec-filter-then-lstat: clean: only lstat files in pathspec
2015-06-16Merge branch 'nd/slim-index-pack-memory-usage'Libravatar Junio C Hamano1-2/+6
An earlier optimization broke index-pack for a large object transfer; this fixes it before the breakage hits any released version. * nd/slim-index-pack-memory-usage: index-pack: fix truncation of off_t in comparison
2015-06-12checkout: don't check worktrees when not necessaryLibravatar Nguyễn Thái Ngọc Duy1-12/+11
When --patch or pathspecs are passed to git checkout, the working tree will not be switching branch, so there's no need to check if the branch that we are running checkout on is already checked out. Original-patch-by: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-11Merge branch 'jk/clone-dissociate'Libravatar Junio C Hamano1-13/+4
Code clean-up. * jk/clone-dissociate: clone: reorder --dissociate and --reference options clone: use OPT_STRING_LIST for --reference
2015-06-09index-pack: avoid excessive re-reading of pack directoryLibravatar Jeff King1-1/+1
Since 45e8a74 (has_sha1_file: re-check pack directory before giving up, 2013-08-30), we spend extra effort for has_sha1_file to give the right answer when somebody else is repacking. Usually this effort does not matter, because after finding that the object does not exist, the next step is usually to die(). However, some code paths make a large number of has_sha1_file checks which are _not_ expected to return 1. The collision test in index-pack.c is such a case. On a local system, this can cause a performance slowdown of around 5%. But on a system with high-latency system calls (like NFS), it can be much worse. This patch introduces a "quick" flag to has_sha1_file which callers can use when they would prefer high performance at the cost of false negatives during repacks. There may be other code paths that can use this, but the index-pack one is the most obviously critical, so we'll start with switching that one. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-08fsck: report errors if reflog entries point at invalid objectsLibravatar Michael Haggerty1-4/+9
Previously, if a reflog entry's old or new SHA-1 was not resolvable to an object, that SHA-1 was silently ignored. Instead, report such cases as errors. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-08fsck_handle_reflog_sha1(): new functionLibravatar Michael Haggerty1-14/+15
New function, extracted from fsck_handle_reflog_ent(). The extra is_null_sha1() test for the new reference is currently unnecessary, as reflogs are deleted when the reference itself is deleted. But it doesn't hurt, either. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-05Merge branch 'bc/object-id'Libravatar Junio C Hamano16-122/+136
for_each_ref() callback functions were taught to name the objects not with "unsigned char sha1[20]" but with "struct object_id". * bc/object-id: (56 commits) struct ref_lock: convert old_sha1 member to object_id warn_if_dangling_symref(): convert local variable "junk" to object_id each_ref_fn_adapter(): remove adapter rev_list_insert_ref(): remove unneeded arguments rev_list_insert_ref_oid(): new function, taking an object_oid mark_complete(): remove unneeded arguments mark_complete_oid(): new function, taking an object_oid clear_marks(): rewrite to take an object_id argument mark_complete(): rewrite to take an object_id argument send_ref(): convert local variable "peeled" to object_id upload-pack: rewrite functions to take object_id arguments find_symref(): convert local variable "unused" to object_id find_symref(): rewrite to take an object_id argument write_one_ref(): rewrite to take an object_id argument write_refs_to_temp_dir(): convert local variable sha1 to object_id submodule: rewrite to take an object_id argument shallow: rewrite functions to take object_id arguments handle_one_ref(): rewrite to take an object_id argument add_info_ref(): rewrite to take an object_id argument handle_one_reflog(): rewrite to take an object_id argument ...
2015-06-05Merge branch 'jk/at-push-sha1'Libravatar Junio C Hamano4-31/+34
Introduce <branch>@{push} short-hand to denote the remote-tracking branch that tracks the branch at the remote the <branch> would be pushed to. * jk/at-push-sha1: for-each-ref: accept "%(push)" format for-each-ref: use skip_prefix instead of starts_with sha1_name: implement @{push} shorthand sha1_name: refactor interpret_upstream_mark sha1_name: refactor upstream_mark remote.c: add branch_get_push remote.c: return upstream name from stat_tracking_info remote.c: untangle error logic in branch_get_upstream remote.c: report specific errors from branch_get_upstream remote.c: introduce branch_get_upstream helper remote.c: hoist read_config into remote_get_1 remote.c: provide per-branch pushremote name remote.c: hoist branch.*.remote lookup out of remote_get_1 remote.c: drop "remote" pointer from "struct branch" remote.c: refactor setup of branch->merge list remote.c: drop default_remote_name variable
2015-06-05Merge branch 'dl/branch-error-message' into maintLibravatar Junio C Hamano1-3/+3
Error messages from "git branch" called remote-tracking branches as "remote branches". * dl/branch-error-message: branch: do not call a "remote-tracking branch" a "remote branch"
2015-06-05Merge branch 'ps/bundle-verify-arg' into maintLibravatar Junio C Hamano1-0/+8
"git bundle verify" did not diagnose extra parameters on the command line. * ps/bundle-verify-arg: bundle: verify arguments more strictly
2015-06-05Merge branch 'jk/add-e-kill-editor' into maintLibravatar Junio C Hamano1-1/+2
"git add -e" did not allow the user to abort the operation by killing the editor. * jk/add-e-kill-editor: add: check return value of launch_editor