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2019-09-09Merge branch 'en/checkout-mismerge-fix'Libravatar Junio C Hamano1-7/+0
Fix a mismerge that happened in 2.22 timeframe. * en/checkout-mismerge-fix: checkout: remove duplicate code
2019-08-22Merge branch 'vn/restore-empty-ita-corner-case-fix'Libravatar Junio C Hamano1-0/+1
"git checkout" and "git restore" to re-populate the index from a tree-ish (typically HEAD) did not work correctly for a path that was removed and then added again with the intent-to-add bit, when the corresponding working tree file was empty. This has been corrected. * vn/restore-empty-ita-corner-case-fix: restore: add test for deleted ita files checkout.c: unstage empty deleted ita files
2019-08-16checkout: remove duplicate codeLibravatar Elijah Newren1-7/+0
Both commit a7256debd4b6 ("checkout.txt: note about losing staged changes with --merge", 2019-03-19) from nd/checkout-m-doc-update and commit 6eff409e8a76 ("checkout: prevent losing staged changes with --merge", 2019-03-22) from nd/checkout-m were included in git.git despite the fact that the latter was meant to be v2 of the former. The merge of these two topics resulted in a redundant chunk of code; remove it. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-06l10n: reformat some localized strings for v2.23.0Libravatar Jean-Noël Avila1-1/+1
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-02checkout.c: unstage empty deleted ita filesLibravatar Varun Naik1-0/+1
It is possible to delete a committed file from the index and then add it as intent-to-add. After `git checkout HEAD <pathspec>`, the file should be identical in the index and HEAD. The command already works correctly if the file has contents in HEAD. This patch provides the desired behavior even when the file is empty in HEAD. `git checkout HEAD <pathspec>` calls tree.c:read_tree_1(), with fn pointing to checkout.c:update_some(). update_some() creates a new cache entry but discards it when its mode and oid match those of the old entry. A cache entry for an ita file and a cache entry for an empty file have the same oid. Therefore, an empty deleted ita file previously passed both of these checks, and the new entry was discarded, so the file remained unchanged in the index. After this fix, if the file is marked as ita in the cache, then we avoid discarding the new entry and add the new entry to the cache instead. This change should not affect newly added ita files. For those, inside tree.c:read_tree_1(), tree_entry_interesting() returns entry_not_interesting, so fn is never called. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Varun Naik <vcnaik94@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-09Merge branch 'nd/switch-and-restore'Libravatar Junio C Hamano1-320/+584
Two new commands "git switch" and "git restore" are introduced to split "checking out a branch to work on advancing its history" and "checking out paths out of the index and/or a tree-ish to work on advancing the current history" out of the single "git checkout" command. * nd/switch-and-restore: (46 commits) completion: disable dwim on "git switch -d" switch: allow to switch in the middle of bisect t2027: use test_must_be_empty Declare both git-switch and git-restore experimental help: move git-diff and git-reset to different groups doc: promote "git restore" user-manual.txt: prefer 'merge --abort' over 'reset --hard' completion: support restore t: add tests for restore restore: support --patch restore: replace --force with --ignore-unmerged restore: default to --source=HEAD when only --staged is specified restore: reject invalid combinations with --staged restore: add --worktree and --staged checkout: factor out worktree checkout code restore: disable overlay mode by default restore: make pathspec mandatory restore: take tree-ish from --source option instead checkout: split part of it to new command 'restore' doc: promote "git switch" ...
2019-06-20switch: allow to switch in the middle of bisectLibravatar Nguyễn Thái Ngọc Duy1-3/+1
In c45f0f525d (switch: reject if some operation is in progress, 2019-03-29), a check is added to prevent switching when some operation is in progress. The reason is it's often not safe to do so. This is true for merge, am, rebase, cherry-pick and revert, but not so much for bisect because bisecting is basically jumping/switching between a bunch of commits to pin point the first bad one. git-bisect suggests the next commit to test, but it's not wrong for the user to test a different commit because git-bisect cannot have the knowledge to know better. For this reason, allow to switch when bisecting (*). I considered if we should still prevent switching by default and allow it with --ignore-in-progress. But I don't think the prevention really adds anything much. If the user switches away by mistake, since we print the previous HEAD value, even if they don't know about the "-" shortcut, switching back is still possible. The warning will be printed on every switch while bisect is still ongoing, not the first time you switch away from bisect's suggested commit, so it could become a bit annoying. (*) of course when it's safe to do so, i.e. no loss of local changes and stuff. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: support --patchLibravatar Nguyễn Thái Ngọc Duy1-2/+4
git-restore is different from git-checkout that it only restores the worktree by default, not both worktree and index. add--interactive needs some update to support this mode. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: replace --force with --ignore-unmergedLibravatar Nguyễn Thái Ngọc Duy1-9/+20
Use a more specific option name to express its purpose. --force may come back as an alias of --ignore-unmerged and possibly more. But since this is a destructive operation, I don't see why we need to "force" anything more. We already don't hold back. When 'checkout --force' or 'restore --ignore-unmerged' is used, we may also print warnings about unmerged entries being ignore. Since this is not exactly warning (people tell us to do so), more informational, let it be suppressed if --quiet is given. This is a behavior change for git-checkout. PS. The diff looks a bit iffy since --force is moved to add_common_switch_branch_options() (i.e. for switching). But git-checkout is also doing switching and inherits this --force. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: default to --source=HEAD when only --staged is specifiedLibravatar Nguyễn Thái Ngọc Duy1-0/+6
"git restore --staged" without --source does not make much sense since by default we restore from the index. Instead of copying the index to itself, set the default source to HEAD in this case, yielding behavior that matches "git reset -- <paths>". Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: reject invalid combinations with --stagedLibravatar Nguyễn Thái Ngọc Duy1-0/+10
git-checkout rejects plenty of invalid option combinations. Since git-checkout is equivalent of either git restore --source --staged --worktree or git restore --worktree that still leaves the new mode 'git restore --index' unprotected. Reject some more invalid option combinations. The other new mode 'restore --source --worktree' does not need anything else. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: add --worktree and --stagedLibravatar Nguyễn Thái Ngọc Duy1-6/+68
'git checkout <tree-ish> <pathspec>' updates both index and worktree. But updating the index when you want to restore worktree files is non-intuitive. The index contains the data ready for the next commit, and there's no indication that the user will want to commit the restored versions. 'git restore' therefore by default only touches worktree. The user has the option to update either the index with git restore --staged --source=<tree> <path> (1) or update both with git restore --staged --worktree --source=<tree> <path> (2) PS. Orignally I wanted to make worktree update default and form (1) would add index update while also updating the worktree, and the user would need to do "--staged --no-worktree" to update index only. But it looks really confusing that "--staged" option alone updates both. So now form (2) is used for both, which reads much more obvious. PPS. Yes form (1) overlaps with "git reset <rev> <path>". I don't know if we can ever turn "git reset" back to "_always_ reset HEAD and optionally do something else". Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07checkout: factor out worktree checkout codeLibravatar Nguyễn Thái Ngọc Duy1-49/+59
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: disable overlay mode by defaultLibravatar Nguyễn Thái Ngọc Duy1-4/+7
Overlay mode is considered confusing when the command is about restoring files on worktree. Disable it by default. The user can still turn it on, or use 'git checkout' which still has overlay mode on by default. While at it, make the check in checkout_branch() stricter. Neither --overlay or --no-overlay should be accepted in branch switching mode. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: make pathspec mandatoryLibravatar Nguyễn Thái Ngọc Duy1-0/+7
"git restore" without arguments does not make much sense when it's about restoring files (what files now?). We could default to either git restore . or git restore :/ Neither is intuitive. Make the user always give pathspec, force the user to think the scope of restore they want because this is a destructive operation. "git restore -p" without pathspec is an exception to this because it really is a separate mode. It will be treated as running patch mode on the whole worktree. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07restore: take tree-ish from --source option insteadLibravatar Nguyễn Thái Ngọc Duy1-8/+34
This is another departure from 'git checkout' syntax, which uses -- to separate ref and pathspec. The observation is restore (or "git checkout -- <pathspec>") is most often used to restore some files from the index. If this is correct, we can simplify it by taking away the ref, so that we can write git restore some-file without worrying about some-file being a ref and whether we need to do git restore -- some-file for safety. If the source of the restore comes from a tree, it will be in the form of an option with value, e.g. git restore --source=this-tree some-file This is of course longer to type than using "--". But hopefully it will not be used as often, and it is clearly easier to understand. dwim_new_local_branch is no longer set (or unset) in cmd_restore_files() because it's irrelevant because we don't really care about dwim-ing. With accept_ref being unset, dwim can't happen. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07checkout: split part of it to new command 'restore'Libravatar Nguyễn Thái Ngọc Duy1-0/+26
Previously the switching branch business of 'git checkout' becomes a new command 'switch'. This adds the restore command for the checking out paths path. Similar to git-switch, a new man page is added to describe what the command will become. The implementation will be updated shortly to match the man page. A couple main differences from 'git checkout <paths>': - 'restore' by default will only update worktree. This matters more when --source is specified ('checkout <tree> <paths>' updates both worktree and index). - 'restore --staged' can be used to restore the index. This command overlaps with 'git reset <paths>'. - both worktree and index could also be restored at the same time (from a tree) when both --staged and --worktree are specified. This overlaps with 'git checkout <tree> <paths>' - default source for restoring worktree and index is the index and HEAD respectively. A different (tree) source could be specified as with --source (*). - when both index and worktree are restored, --source must be specified since the default source for these two individual targets are different (**) - --no-overlay is enabled by default, if an entry is missing in the source, restoring means deleting the entry (*) I originally went with --from instead of --source. I still think --from is a better name. The short option -f however is already taken by force. And I do think short option is good to have, e.g. to write -s@ or -s@^ instead of --source=HEAD. (**) If you sit down and think about it, moving worktree's source from the index to HEAD makes sense, but nobody is really thinking it through when they type the commands. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-25Merge branch 'nd/checkout-m'Libravatar Junio C Hamano1-2/+9
"git checkout -m <other>" was about carrying the differences between HEAD and the working-tree files forward while checking out another branch, and ignored the differences between HEAD and the index. The command has been taught to abort when the index and the HEAD are different. * nd/checkout-m: checkout: prevent losing staged changes with --merge read-tree: add --quiet unpack-trees: rename "gently" flag to "quiet" unpack-trees: keep gently check inside add_rejected_path
2019-04-25Merge branch 'jk/unused-params-even-more'Libravatar Junio C Hamano1-1/+1
Code cleanup. * jk/unused-params-even-more: parse_opt_ref_sorting: always use with NONEG flag pretty: drop unused strbuf from parse_padding_placeholder() pretty: drop unused "type" parameter in needs_rfc2047_encoding() parse-options: drop unused ctx parameter from show_gitcomp() fetch_pack(): drop unused parameters report_path_error(): drop unused prefix parameter unpack-trees: drop unused error_type parameters unpack-trees: drop name_entry from traverse_by_cache_tree() test-date: drop unused "now" parameter from parse_dates() update-index: drop unused prefix_length parameter from do_reupdate() log: drop unused "len" from show_tagger() log: drop unused rev_info from early output revision: drop some unused "revs" parameters
2019-04-16Merge branch 'nd/checkout-m-doc-update'Libravatar Junio C Hamano1-0/+9
Doc about the above. * nd/checkout-m-doc-update: checkout.txt: note about losing staged changes with --merge
2019-04-02switch: make --orphan switch to an empty treeLibravatar Nguyễn Thái Ngọc Duy1-8/+31
Switching and creating branches always involves knowing the <start-point> to begin the new branch from. Sometimes, people want to create a new branch that does not have any commits yet; --orphan is a flag to allow that. --orphan overrides the default of HEAD for <start-point> instead causing us to start from an empty history with all tracked files removed from the index and working tree. The use of --orphan is incompatible with specifying a <start-point>. A note on the implementation. An alternative is just create a dummy commit in-core with empty tree and switch to it. But there's a chance the commit's SHA-1 may end up somewhere permanent like reflog. It's best to make sure "commit" pointer is NULL to avoid it. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: reject if some operation is in progressLibravatar Nguyễn Thái Ngọc Duy1-0/+40
Unless you know what you're doing, switching to another branch to do something then switching back could be confusing. Worse, you may even forget that you're in the middle of something. By the time you realize, you may have done a ton of work and it gets harder to go back. A new option --ignore-in-progress was considered but dropped because it was not exactly clear what should happen. Sometimes you can switch away and get back safely and resume the operation. Sometimes not. And the git-checkout behavior is automatically clear merge/revert/cherry-pick, which makes it a bit even more confusing [1]. We may revisit and add this option in the future. But for now play it safe and not allow it (you can't even skip this check with --force). The user is suggested to cancel the operation by themselves (and hopefully they do consider the consequences, not blindly type the command), or to create a separate worktree instead of switching. The third option is the good old "git checkout", but it's not mentioned. [1] CACsJy8Axa5WsLSjiscjnxVK6jQHkfs-gH959=YtUvQkWriAk5w@mail.gmail.com Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: no worktree status unless real branch switch happensLibravatar Nguyễn Thái Ngọc Duy1-126/+8
When we switch from one branch to another, it makes sense to show a summary of local changes since there could be conflicts, or some files left modified.... When switch is used solely for creating a new branch (and "switch" to the same commit) or detaching, we don't really need to show anything. "git checkout" does it anyway for historical reasons. But we can start with a clean slate with switch and don't have to. This essentially reverts fa655d8411 (checkout: optimize "git checkout -b <new_branch>" - 2018-08-16) and make it default for switch, but also for -B and --detach. Users of big repos are encouraged to move to switch. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: implicit dwim, use --no-guess to disable itLibravatar Nguyễn Thái Ngọc Duy1-8/+8
This is already the default in git-checkout. The real change in here is just minor cleanup. The main excuse is to explain why dwim is kept default. Contrary to detach mode that is easy to get into and confusing to get back out. Automatically creating a tracking branch often does not kick in as often (you would need a branch of the same name on a remote). And since the branch creation is reported clearly, the user should be able to undo/delete it if it's unwanted. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: add short option for --detachLibravatar Nguyễn Thái Ngọc Duy1-1/+1
"git checkout" automatically detaches branches and --detach is not that useful (--no-detach is more likely). But for "switch", you may want to use it more often once you're used to detached HEAD. This of course adds -d to git-checkout but it does not harm (yet?) to do it. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: only allow explicit detached HEADLibravatar Nguyễn Thái Ngọc Duy1-0/+34
"git checkout <commit>" will checkout the commit in question and detach HEAD from the current branch. It is naturally a right thing to do once you get git references. But detached HEAD is a scary concept to new users because we show a lot of warnings and stuff, and it could be hard to get out of (until you know better). To keep switch a bit more friendly to new users, we only allow entering detached HEAD mode when --detach is given. "git switch" must take a branch (unless you create a new branch, then of course switch can take any commit-ish) Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: reject "do nothing" caseLibravatar Nguyễn Thái Ngọc Duy1-0/+9
"git checkout" can be executed without any arguments. What it does is not exactly great: it switches from HEAD to HEAD and shows worktree modification as a side effect. Make switch reject this case. Just use "git status" if you want that side effect. For switch, you have to either - really switch a branch - (explicitly) detach from the current branch - create a new branch Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: stop accepting pathspecLibravatar Nguyễn Thái Ngọc Duy1-5/+15
This command is about switching branch (or creating a new one) and should not accept pathspec. This helps simplify ambiguation handling. The other two ("git checkout" and "git restore") of course do accept pathspec as before. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: remove -lLibravatar Nguyễn Thái Ngọc Duy1-1/+1
This option is ancient. Nowadays reflog is enabled by default and automatically created for new branches. Keep it in git-checkout only. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: add --discard-changesLibravatar Nguyễn Thái Ngọc Duy1-2/+10
--discard-changes is a better name than --force for this option since it's what really happens. --force is turned to an alias for --discard-changes. But it's meant to be an alias for potentially more force options in the future. Side note. It's not obvious from the patch but --discard-changes also affects submodules if --recurse-submodules is used. The knob to force updating submodules is hidden behind unpack-trees.c Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02switch: better names for -b and -BLibravatar Nguyễn Thái Ngọc Duy1-11/+21
The shortcut of these options do not make much sense when used with switch. And their descriptions are also tied to checkout. Move -b/-B to cmd_checkout() and new -c/-C with the same functionality in cmd_switch_branch() Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: split part of it to new command 'switch'Libravatar Nguyễn Thái Ngọc Duy1-12/+48
"git checkout" doing too many things is a source of confusion for many users (and it even bites old timers sometimes). To remedy that, the command will be split into two new ones: switch and restore. The good old "git checkout" command is still here and will be until all (or most of users) are sick of it. See the new man page for the final design of switch. The actual implementation though is still pretty much the same as "git checkout" and not completely aligned with the man page. Following patches will adjust their behavior to match the man page. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: split options[] array in three piecesLibravatar Nguyễn Thái Ngọc Duy1-23/+59
This is a preparation step for introducing new commands that do parts of what checkout does. There will be two new commands, one is about switching branches, detaching HEAD... one about checking out paths. These share the a subset of command line options. The rest of command line options are separate. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: move 'confict_style' and 'dwim_..' to checkout_optsLibravatar Nguyễn Thái Ngọc Duy1-7/+10
These local variables are referenced by struct option[]. This struct will soon be broken down, moved away and we can't rely on local variables anymore. Move these two to struct checkout_opts in preparation for that. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: make "opts" in cmd_checkout() a pointerLibravatar Nguyễn Thái Ngọc Duy1-57/+58
"opts" will soon be moved out of cmd_checkout(). To keep changes in that patch smaller, convert "opts" to a pointer and keep the real thing behind "real_opts". Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: factor out some code in parse_branchname_arg()Libravatar Nguyễn Thái Ngọc Duy1-20/+31
This is in preparation for the new command restore, which also needs to parse opts->source_tree but does not need all the disambiguation logic. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: keep most #include sortedLibravatar Nguyễn Thái Ngọc Duy1-17/+17
The include list becomes very long and frankly a bit unorganized. With the exception of builtin.h, cache.h or git-compat-util.h which have to come first, keep the rest sorted. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02checkout: inform the user when removing branch stateLibravatar Nguyễn Thái Ngọc Duy1-1/+1
After a successful switch, if a merge, cherry-pick or revert is ongoing, it is canceled. This behavior has been with us from the very early beginning, soon after git-merge was created but never actually documented [1]. It may be a good idea to be transparent and tell the user if some operation is canceled. I consider this a better way of telling the user than just adding a sentence or two in git-checkout.txt, which will be mostly ignored anyway. PS. Originally I wanted to print more details like warning: cancelling an in-progress merge from <SHA-1> which may allow some level of undo if the user wants to. But that seems a lot more work. Perhaps it can be improved later if people still want that. [1] ... and I will try not to argue whether it is a sensible behavior. There is some more discussion here if people are interested: CACsJy8Axa5WsLSjiscjnxVK6jQHkfs-gH959=YtUvQkWriAk5w@mail.gmail.com Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-24checkout: prevent losing staged changes with --mergeLibravatar Nguyễn Thái Ngọc Duy1-1/+10
When --merge is specified, we may need to do a real merge (instead of three-way tree unpacking), the steps are best seen in git-checkout.sh version before it's removed: # Match the index to the working tree, and do a three-way. git diff-files --name-only | git update-index --remove --stdin && work=`git write-tree` && git read-tree $v --reset -u $new || exit git merge-recursive $old -- $new $work # Do not register the cleanly merged paths in the index yet. # this is not a real merge before committing, but just carrying # the working tree changes along. unmerged=`git ls-files -u` git read-tree $v --reset $new case "$unmerged" in '') ;; *) ( z40=0000000000000000000000000000000000000000 echo "$unmerged" | sed -e 's/^[0-7]* [0-9a-f]* /'"0 $z40 /" echo "$unmerged" ) | git update-index --index-info ;; esac Notice the last 'read-tree --reset' step. We restore worktree back to 'new' tree after worktree's messed up by merge-recursive. If there are staged changes before this whole command sequence is executed, they are lost because they are unlikely part of the 'new' tree to be restored. There is no easy way to fix this. Elijah may have something up his sleeves [1], but until then, check if there are staged changes and refuse to run and lose them. The user would need to do "git reset" to continue in this case. A note about the test update. 'checkout -m' in that test will fail because a deletion is staged. This 'checkout -m' was previously needed to verify quietness behavior of unpack-trees. But a different check has been put in place in the last patch. We can safely drop 'checkout -m' now. [1] CABPp-BFoL_U=bzON4SEMaQSKU2TKwnOgNqjt5MUaOejTKGUJxw@mail.gmail.com Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-24unpack-trees: rename "gently" flag to "quiet"Libravatar Nguyễn Thái Ngọc Duy1-1/+1
The gently flag was added in 17e4642667 (Add flag to make unpack_trees() not print errors. - 2008-02-07) to suppress error messages. The name "gently" does not quite express that. Granted, being quiet is gentle but it could mean not performing some other actions. Rename the flag to "quiet" to be more on point. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-21checkout.txt: note about losing staged changes with --mergeLibravatar Nguyễn Thái Ngọc Duy1-0/+9
If you have staged changes in path A and perform 'checkout --merge' (which could result in conflicts in a totally unrelated path B), changes in A will be gone. Which is unexpected. We are supposed to keep all changes, or kick and scream otherwise. This is the result of how --merge is implemented, from the very first day in 1be0659efc (checkout: merge local modifications while switching branches., 2006-01-12): 1. a merge is done, unmerged entries are collected 2. a hard switch to a new branch is done, then unmerged entries added back There is no trivial fix for this. Going with 3-way merge one file at a time loses rename detection. Going with 3-way merge by trees requires teaching the algorithm to pick up staged changes. And even if we detect staged changes with --merge and abort for safety, an option to continue --merge is very weird. Such an option would keep worktree changes, but drop staged changes. Because the problem has been with us since the introduction of --merge and everybody has been pretty happy (except Phillip, who found this problem), I'll just take a note here to acknowledge it and wait for merge wizards to come in and work their magic. There may be a way forward [1]. [1] CABPp-BFoL_U=bzON4SEMaQSKU2TKwnOgNqjt5MUaOejTKGUJxw@mail.gmail.com Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-20report_path_error(): drop unused prefix parameterLibravatar Jeff King1-1/+1
This hasn't been used since 17ddc66e70 (convert report_path_error to take struct pathspec, 2013-07-14), as the names in the struct will have already been prefixed when they were parsed. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07Merge branch 'jh/trace2'Libravatar Junio C Hamano1-0/+7
A more structured way to obtain execution trace has been added. * jh/trace2: trace2: add for_each macros to clang-format trace2: t/helper/test-trace2, t0210.sh, t0211.sh, t0212.sh trace2:data: add subverb for rebase trace2:data: add subverb to reset command trace2:data: add subverb to checkout command trace2:data: pack-objects: add trace2 regions trace2:data: add trace2 instrumentation to index read/write trace2:data: add trace2 hook classification trace2:data: add trace2 transport child classification trace2:data: add trace2 sub-process classification trace2:data: add editor/pager child classification trace2:data: add trace2 regions to wt-status trace2: collect Windows-specific process information trace2: create new combined trace facility trace2: Documentation/technical/api-trace2.txt
2019-03-07Merge branch 'tg/checkout-no-overlay'Libravatar Junio C Hamano1-35/+92
"git checkout --no-overlay" can be used to trigger a new mode of checking out paths out of the tree-ish, that allows paths that match the pathspec that are in the current index and working tree and are not in the tree-ish. * tg/checkout-no-overlay: revert "checkout: introduce checkout.overlayMode config" checkout: introduce checkout.overlayMode config checkout: introduce --{,no-}overlay option checkout: factor out mark_cache_entry_for_checkout function checkout: clarify comment read-cache: add invalidate parameter to remove_marked_cache_entries entry: support CE_WT_REMOVE flag in checkout_entry entry: factor out unlink_entry function move worktree tests to t24*
2019-02-22trace2:data: add subverb to checkout commandLibravatar Jeff Hostetler1-0/+7
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-08Merge branch 'nd/checkout-noisy-unmerge'Libravatar Junio C Hamano1-7/+12
"git checkout [<tree-ish>] <pathspec>" started reporting the number of paths that have got updated recently, but the same messages were given when "git checkout -m <pathspec>" to unresolve conflicts that have just been resolved. The message now reports these unresolved paths separately from the paths that are checked out from the index. * nd/checkout-noisy-unmerge: checkout: count and print -m paths separately checkout: update count-checkouts messages
2019-02-06Merge branch 'nd/the-index-final'Libravatar Junio C Hamano1-2/+3
The assumption to work on the single "in-core index" instance has been reduced from the library-ish part of the codebase. * nd/the-index-final: cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch read-cache.c: remove the_* from index_has_changes() merge-recursive.c: remove implicit dependency on the_repository merge-recursive.c: remove implicit dependency on the_index sha1-name.c: remove implicit dependency on the_index read-cache.c: replace update_index_if_able with repo_& read-cache.c: kill read_index() checkout: avoid the_index when possible repository.c: replace hold_locked_index() with repo_hold_locked_index() notes-utils.c: remove the_repository references grep: use grep_opt->repo instead of explict repo argument
2019-02-06checkout: count and print -m paths separatelyLibravatar Nguyễn Thái Ngọc Duy1-3/+8
Since 0f086e6dca (checkout: print something when checking out paths - 2018-11-13), this command reports how many paths have been updated from what source (either from a tree, or from the index). I forget that there's a third source: when -m is used, the merge conflict is re-created (granted, also from the index, but it's not a straight copy from the index). Count and report unmerged paths separately. There's a bit more update to avoid reporting: Recreated X merge conflicts Updated 0 paths from the index The second line is unnecessary. Though if there's no conflict recreation, we still report Updated 0 paths from the index to make it clear we're not really doing anything. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-06checkout: update count-checkouts messagesLibravatar Nguyễn Thái Ngọc Duy1-4/+4
Commit 0f086e6dca [1] counts the number of files updated by "git checkout -- <paths>" command and prints it. Later on 536ec1839d [2] adds the ability to remove files in "git checkout -- <paths>". This is still an update on worktree and should be reported to the user. To prepare for such an update since that commit is on track to 'master' now, the messages are rephrased to avoid "checked out" which does not imply file deletion. [1] 0f086e6dca (checkout: print something when checking out paths - 2018-11-13) [2] 536ec1839d (entry: support CE_WT_REMOVE flag in checkout_entry - 2018-12-20) Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-05Merge branch 'bp/checkout-new-branch-optim'Libravatar Junio C Hamano1-0/+8
"git checkout -b <new> [HEAD]" to create a new branch from the current commit and check it out ought to be a no-op in the index and the working tree in normal cases, but there are corner cases that do require updates to the index and the working tree. Running it immediately after "git clone --no-checkout" is one of these cases that an earlier optimization kicked in incorrectly, which has been fixed. * bp/checkout-new-branch-optim: checkout: fix regression in checkout -b on intitial checkout checkout: add test demonstrating regression with checkout -b on initial commit