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2018-08-02Merge branch 'bc/sequencer-export-work-tree-as-well'Libravatar Junio C Hamano1-0/+2
"git rebase" started exporting GIT_DIR environment variable and exposing it to hook scripts when part of it got rewritten in C. Instead of matching the old scripted Porcelains' behaviour, compensate by also exporting GIT_WORK_TREE environment as well to lessen the damage. This can harm existing hooks that want to operate on different repository, but the current behaviour is already broken for them anyway. * bc/sequencer-export-work-tree-as-well: sequencer: pass absolute GIT_WORK_TREE to exec commands
2018-08-02Merge branch 'js/rebase-merge-octopus'Libravatar Junio C Hamano1-43/+125
"git rebase --rebase-merges" mode now handles octopus merges as well. * js/rebase-merge-octopus: rebase --rebase-merges: adjust man page for octopus support rebase --rebase-merges: add support for octopus merges merge: allow reading the merge commit message from a file
2018-08-02Merge branch 'sb/object-store-lookup'Libravatar Junio C Hamano1-7/+7
lookup_commit_reference() and friends have been updated to find in-core object for a specific in-core repository instance. * sb/object-store-lookup: (32 commits) commit.c: allow lookup_commit_reference to handle arbitrary repositories commit.c: allow lookup_commit_reference_gently to handle arbitrary repositories tag.c: allow deref_tag to handle arbitrary repositories object.c: allow parse_object to handle arbitrary repositories object.c: allow parse_object_buffer to handle arbitrary repositories commit.c: allow get_cached_commit_buffer to handle arbitrary repositories commit.c: allow set_commit_buffer to handle arbitrary repositories commit.c: migrate the commit buffer to the parsed object store commit-slabs: remove realloc counter outside of slab struct commit.c: allow parse_commit_buffer to handle arbitrary repositories tag: allow parse_tag_buffer to handle arbitrary repositories tag: allow lookup_tag to handle arbitrary repositories commit: allow lookup_commit to handle arbitrary repositories tree: allow lookup_tree to handle arbitrary repositories blob: allow lookup_blob to handle arbitrary repositories object: allow lookup_object to handle arbitrary repositories object: allow object_as_type to handle arbitrary repositories tag: add repository argument to deref_tag tag: add repository argument to parse_tag_buffer tag: add repository argument to lookup_tag ...
2018-07-24Merge branch 'as/sequencer-customizable-comment-char'Libravatar Junio C Hamano1-1/+1
Honor core.commentchar when preparing the list of commits to replay in "rebase -i". * as/sequencer-customizable-comment-char: sequencer: use configured comment character
2018-07-24Merge branch 'jk/empty-pick-fix'Libravatar Junio C Hamano1-4/+8
Handling of an empty range by "git cherry-pick" was inconsistent depending on how the range ended up to be empty, which has been corrected. * jk/empty-pick-fix: sequencer: don't say BUG on bogus input sequencer: handle empty-set cases consistently
2018-07-24Merge branch 'bb/pedantic'Libravatar Junio C Hamano1-2/+2
The codebase has been updated to compile cleanly with -pedantic option. * bb/pedantic: utf8.c: avoid char overflow string-list.c: avoid conversion from void * to function pointer sequencer.c: avoid empty statements at top level convert.c: replace "\e" escapes with "\033". fixup! refs/refs-internal.h: avoid forward declaration of an enum refs/refs-internal.h: avoid forward declaration of an enum fixup! connect.h: avoid forward declaration of an enum connect.h: avoid forward declaration of an enum
2018-07-18Merge branch 'en/rebase-i-microfixes'Libravatar Junio C Hamano1-1/+6
* en/rebase-i-microfixes: git-rebase--merge: modernize "git-$cmd" to "git $cmd" Fix use of strategy options with interactive rebases t3418: add testcase showing problems with rebase -i and strategy options
2018-07-18Merge branch 'pw/rebase-i-keep-reword-after-conflict'Libravatar Junio C Hamano1-3/+20
Bugfix for "rebase -i" corner case regression. * pw/rebase-i-keep-reword-after-conflict: sequencer: do not squash 'reword' commits when we hit conflicts
2018-07-18Merge branch 'sb/object-store-grafts'Libravatar Junio C Hamano1-25/+27
The conversion to pass "the_repository" and then "a_repository" throughout the object access API continues. * sb/object-store-grafts: commit: allow lookup_commit_graft to handle arbitrary repositories commit: allow prepare_commit_graft to handle arbitrary repositories shallow: migrate shallow information into the object parser path.c: migrate global git_path_* to take a repository argument cache: convert get_graft_file to handle arbitrary repositories commit: convert read_graft_file to handle arbitrary repositories commit: convert register_commit_graft to handle arbitrary repositories commit: convert commit_graft_pos() to handle arbitrary repositories shallow: add repository argument to is_repository_shallow shallow: add repository argument to check_shallow_file_for_update shallow: add repository argument to register_shallow shallow: add repository argument to set_alternate_shallow_file commit: add repository argument to lookup_commit_graft commit: add repository argument to prepare_commit_graft commit: add repository argument to read_graft_file commit: add repository argument to register_commit_graft commit: add repository argument to commit_graft_pos object: move grafts to object parser object-store: move object access functions to object-store.h
2018-07-16sequencer: pass absolute GIT_WORK_TREE to exec commandsLibravatar brian m. carlson1-0/+2
The sequencer currently passes GIT_DIR, but not GIT_WORK_TREE, to exec commands. In that configuration, we assume that whatever directory we're in is the top level of the work tree, and git rev-parse --show-toplevel responds accordingly. However, when we're in a subdirectory, that isn't correct: we respond with the subdirectory as the top level, resulting in unexpected behavior. Ensure that we pass GIT_WORK_TREE as well as GIT_DIR so that git operations within subdirectories work correctly. Note that we are guaranteed to have a work tree in this case: the relevant sequencer functions are called only from revert, cherry-pick, and rebase--helper; all of these commands require a working tree. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16sequencer: use configured comment characterLibravatar Aaron Schrab1-1/+1
Use the configured comment character when generating comments about branches in a todo list. Failure to honor this configuration causes a failure to parse the resulting todo list. Setting core.commentChar to "auto" will not be honored here, and the previously configured or default value will be used instead. But, since the todo list will consist of only generated content, there should not be any non-comment lines beginning with that character. Signed-off-by: Aaron Schrab <aaron@schrab.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11rebase --rebase-merges: add support for octopus mergesLibravatar Johannes Schindelin1-43/+125
Previously, we introduced the `merge` command for use in todo lists, to allow to recreate and modify branch topology. For ease of implementation, and to make review easier, the initial implementation only supported merge commits with exactly two parents. This patch adds support for octopus merges, making use of the just-introduced `-F <file>` option for the `git merge` command: to keep things simple, we spawn a new Git command instead of trying to call a library function, also opening an easier door to enhance `rebase --rebase-merges` to optionally use a merge strategy different from `recursive` for regular merges: this feature would use the same code path as octopus merges and simply spawn a `git merge`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11sequencer: don't say BUG on bogus inputLibravatar Jeff King1-2/+4
When cherry-picking a single commit, we go through a special code path that avoids creating a sequencer todo list at all. This path expects our revision parsing to turn up exactly one commit, and dies with a BUG if it doesn't. But it's actually quite easy to fool. For example: $ git cherry-pick --author=no.such.person HEAD error: BUG: expected exactly one commit from walk fatal: cherry-pick failed This isn't a bug; it's just bogus input. The condition to trigger this message actually has two parts: 1. We saw no commits. That's the case in the example above. Let's drop the "BUG" here to make it clear that the input is the problem. And let's also use the phrase "empty commit set passed", which matches what we say when we do a real revision walk and it turns up empty. 2. We saw more than one commit. That one _should_ be impossible to trigger, since we fed at most one tip and provided the no_walk option (and we'll have already expanded options like "--branches" that can turn into multiple tips). If this ever triggers, it's an indication that the conditional added by 7acaaac275 (revert: allow single-pick in the middle of cherry-pick sequence, 2011-12-10) needs to more carefully define the single-pick case. So this can remain a bug, but we'll upgrade it to use the BUG() macro, which would make it easier to detect and analyze if it does trigger. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11sequencer: handle empty-set cases consistentlyLibravatar Jeff King1-2/+4
If the user gives us a set that prepare_revision_walk() takes to be empty, like: git cherry-pick base..base then we report an error. It's nonsense, and there's nothing to pick. But if they use revision options that later cull the list, like: git cherry-pick --author=nobody base~2..base then we quietly create an empty todo list and return success. Arguably either behavior is acceptable, but we should definitely be consistent about it. Reporting an error seems to match the original intent, which dates all the way back to 7e2bfd3f99 (revert: allow cherry-picking more than one commit, 2010-06-02). That in turn was trying to match the single-commit case that existed before then (and which continues to issue an error). Signed-off-by: Jeff King <peff@peff.net> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09sequencer.c: avoid empty statements at top levelLibravatar Beat Bolli1-2/+2
The macro GIT_PATH_FUNC expands to a function definition that ends with a closing brace. Remove two extra semicolons. While at it, fix the example in path.h. Signed-off-by: Beat Bolli <dev+git@drbeat.li> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29commit: add repository argument to lookup_commitLibravatar Stefan Beller1-2/+2
Add a repository argument to allow callers of lookup_commit to be more specific about which repository to handle. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29commit: add repository argument to lookup_commit_referenceLibravatar Stefan Beller1-3/+3
Add a repository argument to allow callers of lookup_commit_reference to be more specific about which repository to handle. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29commit: add repository argument to lookup_commit_reference_gentlyLibravatar Stefan Beller1-1/+1
Add a repository argument to allow callers of lookup_commit_reference_gently to be more specific about which repository to handle. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29tree: add repository argument to lookup_treeLibravatar Stefan Beller1-1/+1
Add a repository argument to allow the callers of lookup_tree to be more specific about which repository to act on. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29Merge branch 'sb/object-store-grafts' into sb/object-store-lookupLibravatar Junio C Hamano1-25/+27
* sb/object-store-grafts: commit: allow lookup_commit_graft to handle arbitrary repositories commit: allow prepare_commit_graft to handle arbitrary repositories shallow: migrate shallow information into the object parser path.c: migrate global git_path_* to take a repository argument cache: convert get_graft_file to handle arbitrary repositories commit: convert read_graft_file to handle arbitrary repositories commit: convert register_commit_graft to handle arbitrary repositories commit: convert commit_graft_pos() to handle arbitrary repositories shallow: add repository argument to is_repository_shallow shallow: add repository argument to check_shallow_file_for_update shallow: add repository argument to register_shallow shallow: add repository argument to set_alternate_shallow_file commit: add repository argument to lookup_commit_graft commit: add repository argument to prepare_commit_graft commit: add repository argument to read_graft_file commit: add repository argument to register_commit_graft commit: add repository argument to commit_graft_pos object: move grafts to object parser object-store: move object access functions to object-store.h
2018-06-27Fix use of strategy options with interactive rebasesLibravatar Elijah Newren1-1/+6
git-rebase.sh wrote strategy options to .git/rebase/merge/strategy_opts in the following format: '--ours' '--renormalize' Note the double spaces. git-rebase--interactive uses sequencer.c to parse that file, and sequencer.c used split_cmdline() to get the individual strategy options. After splitting, sequencer.c prefixed each "option" with a double dash, so, concatenating all its options would result in: -- --ours -- --renormalize So, when it ended up calling try_merge_strategy(), that in turn would run git merge-$strategy -- --ours -- --renormalize $merge_base -- $head $remote instead of the expected/desired git merge-$strategy --ours --renormalize $merge_base -- $head $remote Remove the extra spaces so that when it goes through split_cmdline() we end up with the desired command line. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-25Merge branch 'sb/plug-misc-leaks'Libravatar Junio C Hamano1-1/+3
Misc leak plugging. * sb/plug-misc-leaks: sequencer.c: plug mem leak in git_sequencer_config sequencer.c: plug leaks in do_pick_commit submodule--helper: plug mem leak in print_default_remote refs/packed-backend.c: close fd of empty file
2018-06-25Merge branch 'nd/commit-util-to-slab'Libravatar Junio C Hamano1-6/+18
The in-core "commit" object had an all-purpose "void *util" field, which was tricky to use especially in library-ish part of the code. All of the existing uses of the field has been migrated to a more dedicated "commit-slab" mechanism and the field is eliminated. * nd/commit-util-to-slab: commit.h: delete 'util' field in struct commit merge: use commit-slab in merge remote desc instead of commit->util log: use commit-slab in prepare_bases() instead of commit->util show-branch: note about its object flags usage show-branch: use commit-slab for commit-name instead of commit->util name-rev: use commit-slab for rev-name instead of commit->util bisect.c: use commit-slab for commit weight instead of commit->util revision.c: use commit-slab for show_source sequencer.c: use commit-slab to associate todo items to commits sequencer.c: use commit-slab to mark seen commits shallow.c: use commit-slab for commit depth instead of commit->util describe: use commit-slab for commit names instead of commit->util blame: use commit-slab for blame suspects instead of commit->util commit-slab: support shared commit-slab commit-slab.h: code split
2018-06-25sequencer.c: plug mem leak in git_sequencer_configLibravatar Stefan Beller1-0/+1
Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-19sequencer: do not squash 'reword' commits when we hit conflictsLibravatar Phillip Wood1-3/+20
Ever since commit 18633e1a22 ("rebase -i: use the rebase--helper builtin", 2017-02-09), when a commit marked as 'reword' in an interactive rebase has conflicts and fails to apply, when the rebase is resumed that commit will be squashed into its parent with its commit message taken. The issue can be understood better by looking at commit 56dc3ab04b ("sequencer (rebase -i): implement the 'edit' command", 2017-01-02), which introduced error_with_patch() for the edit command. For the edit command, it needs to stop the rebase whether or not the patch applies cleanly. If the patch does apply cleanly, then when it resumes it knows it needs to amend all changes into the previous commit. If it does not apply cleanly, then the changes should not be amended. Thus, it passes !res (success of applying the 'edit' commit) to error_with_patch() for the to_amend flag. The problematic line of code actually came from commit 04efc8b57c ("sequencer (rebase -i): implement the 'reword' command", 2017-01-02). Note that to get to this point in the code: * !!res (i.e. patch application failed) * item->command < TODO_SQUASH * item->command != TODO_EDIT * !is_fixup(item->command) [i.e. not squash or fixup] So that means this can only be a failed patch application that is either a pick, revert, or reword. We only need to amend HEAD when rewording the root commit or a commit that has been fast-forwarded, for any of the other cases we want a new commit, so we should not set the to_amend flag. Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Original-patch-by: Elijah Newren <newren@gmail.com> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-18Merge branch 'js/rebase-i-root-fix'Libravatar Junio C Hamano1-1/+1
A regression to "rebase -i --root" introduced during this cycle has been fixed. * js/rebase-i-root-fix: rebase --root: fix amending root commit messages rebase --root: demonstrate a bug while amending root commit messages
2018-06-18rebase --root: fix amending root commit messagesLibravatar Johannes Schindelin1-1/+1
The code path that triggered that "BUG" really does not want to run without an explicit commit message. In the case where we want to amend a commit message, we have an *implicit* commit message, though: the one of the commit to amend. Therefore, this code path should not even be entered. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-04sequencer.c: plug leaks in do_pick_commitLibravatar Stefan Beller1-1/+2
Going to leave, we additionally free the author and commit message and make sure to call update_abort_safety_file(). Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-01Merge branch 'js/rebase-recreate-merge'Libravatar Junio C Hamano1-1/+1
Hotfixes. * js/rebase-recreate-merge: sequencer: ensure labels that are object IDs are rewritten git-rebase--interactive: fix copy-paste mistake
2018-06-01Merge branch 'nd/command-list'Libravatar Junio C Hamano1-0/+1
The list of commands with their various attributes were spread across a few places in the build procedure, but it now is getting a bit more consolidated to allow more automation. * nd/command-list: completion: allow to customize the completable command list completion: add and use --list-cmds=alias completion: add and use --list-cmds=nohelpers Move declaration for alias.c to alias.h completion: reduce completable command list completion: let git provide the completable command list command-list.txt: documentation and guide line help: use command-list.txt for the source of guides help: add "-a --verbose" to list all commands with synopsis git: support --list-cmds=list-<category> completion: implement and use --list-cmds=main,others git --list-cmds: collect command list in a string_list git.c: convert --list-* to --list-cmds=* Remove common-cmds.h help: use command-list.h for common command list generate-cmds.sh: export all commands to command-list.h generate-cmds.sh: factor out synopsis extract code
2018-05-30Merge branch 'bc/object-id'Libravatar Junio C Hamano1-2/+2
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (42 commits) merge-one-file: compute empty blob object ID add--interactive: compute the empty tree value Update shell scripts to compute empty tree object ID sha1_file: only expose empty object constants through git_hash_algo dir: use the_hash_algo for empty blob object ID sequencer: use the_hash_algo for empty tree object ID cache-tree: use is_empty_tree_oid sha1_file: convert cached object code to struct object_id builtin/reset: convert use of EMPTY_TREE_SHA1_BIN builtin/receive-pack: convert one use of EMPTY_TREE_SHA1_HEX wt-status: convert two uses of EMPTY_TREE_SHA1_HEX submodule: convert several uses of EMPTY_TREE_SHA1_HEX sequencer: convert one use of EMPTY_TREE_SHA1_HEX merge: convert empty tree constant to the_hash_algo builtin/merge: switch tree functions to use object_id builtin/am: convert uses of EMPTY_TREE_SHA1_BIN to the_hash_algo sha1-file: add functions for hex empty tree and blob OIDs builtin/receive-pack: avoid hard-coded constants for push certs diff: specify abbreviation size in terms of the_hash_algo upload-pack: replace use of several hard-coded constants ...
2018-05-30Merge branch 'js/sequencer-and-root-commits'Libravatar Junio C Hamano1-25/+181
The implementation of "git rebase -i --root" has been updated to use the sequencer machinery more. * js/sequencer-and-root-commits: rebase --rebase-merges: root commits can be cousins, too rebase --rebase-merges: a "merge" into a new root is a fast-forward sequencer: allow introducing new root commits rebase -i --root: let the sequencer handle even the initial part sequencer: learn about the special "fake root commit" handling sequencer: extract helper to update active_cache_tree
2018-05-30sequencer: ensure labels that are object IDs are rewrittenLibravatar brian m. carlson1-1/+1
When writing the todo script for --rebase-merges, we try to find a label for certain commits. If the label ends up being a valid object ID, such as when we merge a detached commit, we want to rewrite it so it is no longer a valid object ID. However, the code path that does this checks for its length to be equivalent to GIT_SHA1_RAWSZ, which isn't correct, since what we are reading is a hex object ID. Instead, check for the length being equivalent to that of a hex object ID. Use the_hash_algo so this code works regardless of the hash size. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-23Merge branch 'js/rebase-recreate-merge'Libravatar Junio C Hamano1-37/+855
"git rebase" learned "--rebase-merges" to transplant the whole topology of commit graph elsewhere. * js/rebase-recreate-merge: rebase -i --rebase-merges: add a section to the man page rebase -i: introduce --rebase-merges=[no-]rebase-cousins pull: accept --rebase=merges to recreate the branch topology rebase --rebase-merges: avoid "empty merges" sequencer: handle post-rewrite for merge commands sequencer: make refs generated by the `label` command worktree-local rebase --rebase-merges: add test for --keep-empty rebase: introduce the --rebase-merges option rebase-helper --make-script: introduce a flag to rebase merges sequencer: fast-forward `merge` commands, if possible sequencer: introduce the `merge` command sequencer: introduce new commands to reset the revision git-rebase--interactive: clarify arguments sequencer: offer helpful advice when a command was rescheduled sequencer: refactor how original todo list lines are accessed sequencer: make rearrange_squash() a bit more obvious sequencer: avoid using errno clobbered by rollback_lock_file()
2018-05-23Merge branch 'js/rebase-i-clean-msg-after-fixup-continue'Libravatar Junio C Hamano1-47/+146
"git rebase -i" sometimes left intermediate "# This is a combination of N commits" message meant for the human consumption inside an editor in the final result in certain corner cases, which has been fixed. * js/rebase-i-clean-msg-after-fixup-continue: rebase --skip: clean up commit message after a failed fixup/squash sequencer: always commit without editing when asked for rebase -i: Handle "combination of <n> commits" with GETTEXT_POISON rebase -i: demonstrate bugs with fixup!/squash! commit messages
2018-05-23Merge branch 'sb/oid-object-info'Libravatar Junio C Hamano1-1/+2
The codepath around object-info API has been taught to take the repository object (which in turn tells the API which object store the objects are to be located). * sb/oid-object-info: cache.h: allow oid_object_info to handle arbitrary repositories packfile: add repository argument to cache_or_unpack_entry packfile: add repository argument to unpack_entry packfile: add repository argument to read_object packfile: add repository argument to packed_object_info packfile: add repository argument to packed_to_object_type packfile: add repository argument to retry_bad_packed_offset cache.h: add repository argument to oid_object_info cache.h: add repository argument to oid_object_info_extended
2018-05-23Merge branch 'ds/lazy-load-trees'Libravatar Junio C Hamano1-6/+6
The code has been taught to use the duplicated information stored in the commit-graph file to learn the tree object name for a commit to avoid opening and parsing the commit object when it makes sense to do so. * ds/lazy-load-trees: coccinelle: avoid wrong transformation suggestions from commit.cocci commit-graph: lazy-load trees for commits treewide: replace maybe_tree with accessor methods commit: create get_commit_tree() method treewide: rename tree to maybe_tree
2018-05-21sequencer.c: use commit-slab to associate todo items to commitsLibravatar Nguyễn Thái Ngọc Duy1-3/+9
It's done so that commit->util can be removed. See more explanation in the commit that removes commit->util. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21sequencer.c: use commit-slab to mark seen commitsLibravatar Nguyễn Thái Ngọc Duy1-3/+9
It's done so that commit->util can be removed. See more explanation in the commit that removes commit->util. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21Move declaration for alias.c to alias.hLibravatar Nguyễn Thái Ngọc Duy1-0/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18path.c: migrate global git_path_* to take a repository argumentLibravatar Stefan Beller1-18/+19
Migrate all git_path_* functions that are defined in path.c to take a repository argument. Unlike other patches in this series, do not use the #define trick, as we rewrite the whole function, which is rather small. This doesn't migrate all the functions, as other builtins have their own local path functions defined using GIT_PATH_FUNC. So keep that macro around to serve the other locations. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-16object-store: move object access functions to object-store.hLibravatar Stefan Beller1-0/+1
This should make these functions easier to find and cache.h less overwhelming to read. In particular, this moves: - read_object_file - oid_object_info - write_object_file As a result, most of the codebase needs to #include object-store.h. In this patch the #include is only added to files that would fail to compile otherwise. It would be better to #include wherever identifiers from the header are used. That can happen later when we have better tooling for it. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08Merge branch 'js/ident-date-fix'Libravatar Junio C Hamano1-0/+2
During a "rebase -i" session, the code could give older timestamp to commits created by later "pick" than an earlier "reword", which has been corrected. * js/ident-date-fix: sequencer: reset the committer date before commits
2018-05-06rebase --rebase-merges: root commits can be cousins, tooLibravatar Johannes Schindelin1-1/+2
Reported by Wink Saville: when rebasing with no-rebase-cousins, we will want to refrain from rebasing all of them, even when they are root commits. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06sequencer: learn about the special "fake root commit" handlingLibravatar Johannes Schindelin1-3/+121
When an interactive rebase wants to recreate a root commit, it - first creates a new, empty root commit, - checks it out, - converts the next `pick` command so that it amends the empty root commit Introduce support in the sequencer to handle such an empty root commit, by looking for the file <GIT_DIR>/rebase-merge/squash-onto; if it exists and contains a commit name, the sequencer will compare the HEAD to said root commit, and if identical, a new root commit will be created. While converting scripted code into proper, portable C, we also do away with the old "amend with an empty commit message, then cherry-pick without committing, then amend again" dance and replace it with code that uses the internal API properly to do exactly what we want: create a new root commit. To keep the implementation simple, we always spawn `git commit` to create new root commits. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06rebase --rebase-merges: a "merge" into a new root is a fast-forwardLibravatar Johannes Schindelin1-0/+12
When a user provides a todo list containing something like reset [new root] merge my-branch let's do the same as if pulling into an orphan branch: simply fast-forward. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06sequencer: allow introducing new root commitsLibravatar Johannes Schindelin1-12/+28
In the context of the new --rebase-merges mode, which was designed specifically to allow for changing the existing branch topology liberally, a user may want to extract commits into a completely fresh branch that starts with a newly-created root commit. This is now possible by inserting the command `reset [new root]` before `pick`ing the commit that wants to become a root commit. Example: reset [new root] pick 012345 a commit that is about to become a root commit pick 234567 this commit will have the previous one as parent This does not conflict with other uses of the `reset` command because `[new root]` is not (part of) a valid ref name: both the opening bracket as well as the space are illegal in ref names. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06sequencer: extract helper to update active_cache_treeLibravatar Johannes Schindelin1-9/+18
This patch extracts the code from is_index_unchanged() to initialize or update the index' cache tree (i.e. a tree object reflecting the current index' top-level tree). The new helper will be used in the upcoming code to support `git rebase -i --root` via the sequencer. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02sequencer: use the_hash_algo for empty tree object IDLibravatar brian m. carlson1-1/+1
To ensure that we are hash algorithm agnostic, use the_hash_algo to look up the object ID for the empty tree instead of using the empty_tree_oid variable. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02sequencer: convert one use of EMPTY_TREE_SHA1_HEXLibravatar brian m. carlson1-1/+1
Convert one use of EMPTY_TREE_SHA1_HEX to use empty_tree_oid_hex to avoid a dependency on a given hash algorithm. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>