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2018-09-17Merge branch 'jk/cocci'Libravatar Junio C Hamano1-2/+2
spatch transformation to replace boolean uses of !hashcmp() to newly introduced oideq() is added, and applied, to regain performance lost due to support of multiple hash algorithms. * jk/cocci: show_dirstat: simplify same-content check read-cache: use oideq() in ce_compare functions convert hashmap comparison functions to oideq() convert "hashcmp() != 0" to "!hasheq()" convert "oidcmp() != 0" to "!oideq()" convert "hashcmp() == 0" to hasheq() convert "oidcmp() == 0" to oideq() introduce hasheq() and oideq() coccinelle: use <...> for function exclusion
2018-09-17Merge branch 'ds/reachable'Libravatar Junio C Hamano1-0/+1
The code for computing history reachability has been shuffled, obtained a bunch of new tests to cover them, and then being improved. * ds/reachable: commit-reach: correct accidental #include of C file commit-reach: use can_all_from_reach commit-reach: make can_all_from_reach... linear commit-reach: replace ref_newer logic test-reach: test commit_contains test-reach: test can_all_from_reach_with_flags test-reach: test reduce_heads test-reach: test get_merge_bases_many test-reach: test is_descendant_of test-reach: test in_merge_bases test-reach: create new test tool for ref_newer commit-reach: move can_all_from_reach_with_flags upload-pack: generalize commit date cutoff upload-pack: refactor ok_to_give_up() upload-pack: make reachable() more generic commit-reach: move commit_contains from ref-filter commit-reach: move ref_newer from remote.c commit.h: remove method declarations commit-reach: move walk methods from commit.c
2018-08-29convert "oidcmp() != 0" to "!oideq()"Libravatar Jeff King1-1/+1
This is the flip side of the previous two patches: checking for a non-zero oidcmp() can be more strictly expressed as inequality. Like those patches, we write "!= 0" in the coccinelle transformation, which covers by isomorphism the more common: if (oidcmp(E1, E2)) As with the previous two patches, this patch can be achieved almost entirely by running "make coccicheck"; the only differences are manual line-wrap fixes to match the original code. There is one thing to note for anybody replicating this, though: coccinelle 1.0.4 seems to miss the case in builtin/tag.c, even though it's basically the same as all the others. Running with 1.0.7 does catch this, so presumably it's just a coccinelle bug that was fixed in the interim. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-29convert "oidcmp() == 0" to oideq()Libravatar Jeff King1-1/+1
Using the more restrictive oideq() should, in the long run, give the compiler more opportunities to optimize these callsites. For now, this conversion should be a complete noop with respect to the generated code. The result is also perhaps a little more readable, as it avoids the "zero is equal" idiom. Since it's so prevalent in C, I think seasoned programmers tend not to even notice it anymore, but it can sometimes make for awkward double negations (e.g., we can drop a few !!oidcmp() instances here). This patch was generated almost entirely by the included coccinelle patch. This mechanical conversion should be completely safe, because we check explicitly for cases where oidcmp() is compared to 0, which is what oideq() is doing under the hood. Note that we don't have to catch "!oidcmp()" separately; coccinelle's standard isomorphisms make sure the two are treated equivalently. I say "almost" because I did hand-edit the coccinelle output to fix up a few style violations (it mostly keeps the original formatting, but sometimes unwraps long lines). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-27Merge branch 'rs/opt-updates'Libravatar Junio C Hamano1-1/+1
"git cmd -h" updates. * rs/opt-updates: parseopt: group literal string alternatives in argument help remote: improve argument help for add --mirror checkout-index: improve argument help for --stage
2018-08-21parseopt: group literal string alternatives in argument helpLibravatar René Scharfe1-1/+1
This formally clarifies that the "--option=" part is the same for all alternatives. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-17Merge branch 'js/pull-rebase-type-shorthand'Libravatar Junio C Hamano1-3/+3
"git pull --rebase=interactive" learned "i" as a short-hand for "interactive". * js/pull-rebase-type-shorthand: pull --rebase=<type>: allow single-letter abbreviations for the type
2018-08-06pull --rebase=<type>: allow single-letter abbreviations for the typeLibravatar Johannes Schindelin1-3/+3
Git for Windows' original 4aa8b8c8283 (Teach 'git pull' to handle --rebase=interactive, 2011-10-21) had support for the very convenient abbreviation git pull --rebase=i which was later lost when it was ported to the builtin `git pull`, and it was not introduced before the patch eventually made it into Git as f5eb87b98dd (pull: allow interactive rebase with --rebase=interactive, 2016-01-13). However, it is *really* a useful short hand for the occasional rebasing pull on branches that do not usually want to be rebased. So let's reintroduce this convenience, at long last. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-20commit.h: remove method declarationsLibravatar Derrick Stolee1-0/+1
These methods are now declared in commit-reach.h. Remove them from commit.h and add new include statements in all files that require these declarations. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29commit: add repository argument to lookup_commit_referenceLibravatar Stefan Beller1-5/+10
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>
2018-06-29Merge branch 'sb/object-store-grafts' into sb/object-store-lookupLibravatar Junio C Hamano1-2/+2
* 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
2018-06-28Merge branch 'ab/refspec-init-fix'Libravatar Junio C Hamano1-1/+1
Make refspec parsing codepath more robust. * ab/refspec-init-fix: refspec: initalize `refspec_item` in `valid_fetch_refspec()` refspec: add back a refspec_item_init() function refspec: s/refspec_item_init/&_or_die/g
2018-06-18Merge branch 'rd/doc-remote-tracking-with-hyphen'Libravatar Junio C Hamano1-2/+2
Doc update. * rd/doc-remote-tracking-with-hyphen: Use hyphenated "remote-tracking branch" (docs and comments)
2018-06-13Use hyphenated "remote-tracking branch" (docs and comments)Libravatar Robert P. J. Day1-2/+2
Use the obvious consensus of hyphenated "remote-tracking branch", and fix an obvious typo, all in documentation and comments. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11refspec: s/refspec_item_init/&_or_die/gLibravatar Ævar Arnfjörð Bjarmason1-1/+1
Rename the refspec_item_init() function introduced in 6d4c057859 ("refspec: introduce struct refspec", 2018-05-16) to refspec_item_init_or_die(). This follows the convention of other *_or_die() functions, and is done in preparation for making it a wrapper for a non-fatal variant. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-30Merge branch 'bw/ref-prefix-for-configured-refspec'Libravatar Junio C Hamano1-4/+5
"git fetch $there $refspec" that talks over protocol v2 can take advantage of server-side ref filtering; the code has been extended so that this mechanism triggers also when fetching with configured refspec. * bw/ref-prefix-for-configured-refspec: (38 commits) fetch: generate ref-prefixes when using a configured refspec refspec: consolidate ref-prefix generation logic submodule: convert push_unpushed_submodules to take a struct refspec remote: convert check_push_refs to take a struct refspec remote: convert match_push_refs to take a struct refspec http-push: store refspecs in a struct refspec transport: remove transport_verify_remote_names send-pack: store refspecs in a struct refspec transport: convert transport_push to take a struct refspec push: convert to use struct refspec push: check for errors earlier remote: convert match_explicit_refs to take a struct refspec remote: convert get_ref_match to take a struct refspec remote: convert query_refspecs to take a struct refspec remote: convert apply_refspecs to take a struct refspec remote: convert get_stale_heads to take a struct refspec fetch: convert prune_refs to take a struct refspec fetch: convert get_ref_map to take a struct refspec fetch: convert do_fetch to take a struct refspec refspec: remove the deprecated functions ...
2018-05-30Merge branch 'js/use-bug-macro'Libravatar Junio C Hamano1-1/+1
Developer support update, by using BUG() macro instead of die() to mark codepaths that should not happen more clearly. * js/use-bug-macro: BUG_exit_code: fix sparse "symbol not declared" warning Convert remaining die*(BUG) messages Replace all die("BUG: ...") calls by BUG() ones run-command: use BUG() to report bugs, not die() test-tool: help verifying BUG() code paths
2018-05-18path.c: migrate global git_path_* to take a repository argumentLibravatar Stefan Beller1-2/+2
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>
2018-05-18pull: convert get_tracking_branch to use refspec_item_initLibravatar Brandon Williams1-4/+4
Convert 'get_tracking_branch()' to use 'refspec_item_init()' instead of the old 'parse_fetch_refspec()' function. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18refspec: rename struct refspec to struct refspec_itemLibravatar Brandon Williams1-1/+1
In preparation for introducing an abstraction around a collection of refspecs (much like how a 'struct pathspec' is a collection of 'struct pathspec_item's) rename the existing 'struct refspec' to 'struct refspec_item'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18refspec: move refspec parsing logic into its own fileLibravatar Brandon Williams1-0/+1
In preparation for performing a refactor on refspec related code, move the refspec parsing logic into its own file. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06Replace all die("BUG: ...") calls by BUG() onesLibravatar Johannes Schindelin1-1/+1
In d8193743e08 (usage.c: add BUG() function, 2017-05-12), a new macro was introduced to use for reporting bugs instead of die(). It was then subsequently used to convert one single caller in 588a538ae55 (setup_git_env: convert die("BUG") to BUG(), 2017-05-12). The cover letter of the patch series containing this patch (cf 20170513032414.mfrwabt4hovujde2@sigill.intra.peff.net) is not terribly clear why only one call site was converted, or what the plan is for other, similar calls to die() to report bugs. Let's just convert all remaining ones in one fell swoop. This trick was performed by this invocation: sed -i 's/die("BUG: /BUG("/g' $(git grep -l 'die("BUG' \*.c) Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-26pull: accept --rebase=merges to recreate the branch topologyLibravatar Johannes Schindelin1-4/+10
Similar to the `preserve` mode simply passing the `--preserve-merges` option to the `rebase` command, the `merges` mode simply passes the `--rebase-merges` option. This will allow users to conveniently rebase non-trivial commit topologies when pulling new commits, without flattening them. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11exec_cmd: rename to use dash in file nameLibravatar Stefan Beller1-1/+1
This is more consistent with the project style. The majority of Git's source files use dashes in preference to underscores in their file names. Signed-off-by: Stefan Beller <sbeller@google.com>
2018-03-14Merge branch 'nd/parseopt-completion'Libravatar Junio C Hamano1-1/+1
Teach parse-options API an option to help the completion script, and make use of the mechanism in command line completion. * nd/parseopt-completion: (45 commits) completion: more subcommands in _git_notes() completion: complete --{reuse,reedit}-message= for all notes subcmds completion: simplify _git_notes completion: don't set PARSE_OPT_NOCOMPLETE on --rerere-autoupdate completion: use __gitcomp_builtin in _git_worktree completion: use __gitcomp_builtin in _git_tag completion: use __gitcomp_builtin in _git_status completion: use __gitcomp_builtin in _git_show_branch completion: use __gitcomp_builtin in _git_rm completion: use __gitcomp_builtin in _git_revert completion: use __gitcomp_builtin in _git_reset completion: use __gitcomp_builtin in _git_replace remote: force completing --mirror= instead of --mirror completion: use __gitcomp_builtin in _git_remote completion: use __gitcomp_builtin in _git_push completion: use __gitcomp_builtin in _git_pull completion: use __gitcomp_builtin in _git_notes completion: use __gitcomp_builtin in _git_name_rev completion: use __gitcomp_builtin in _git_mv completion: use __gitcomp_builtin in _git_merge_base ...
2018-02-15Merge branch 'sb/pull-rebase-submodule'Libravatar Junio C Hamano1-0/+2
"git pull --rebase" did not pass verbosity setting down when recursing into a submodule. * sb/pull-rebase-submodule: builtin/pull: respect verbosity settings in submodules
2018-02-09parse-options: let OPT__FORCE take optional flags argumentLibravatar Nguyễn Thái Ngọc Duy1-1/+1
--force option is most likely hidden from command line completion for safety reasons. This is done by adding an extra flag PARSE_OPT_NOCOMPLETE. Update OPT__FORCE() to accept additional flags. Actual flag change comes later depending on individual commands. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-25builtin/pull: respect verbosity settings in submodulesLibravatar Stefan Beller1-0/+2
In a6d7eb2c7a (pull: optionally rebase submodules (remote submodule changes only), 2017-06-23), we taught Git how to rebase submodules in a pull. However we missed to pass on the verbosity settings. Reported-by: Robin H. Johnson <robbat2@gentoo.org> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-13Merge branch 'bc/hash-algo'Libravatar Junio C Hamano1-1/+1
An infrastructure to define what hash function is used in Git is introduced, and an effort to plumb that throughout various codepaths has been started. * bc/hash-algo: repository: fix a sparse 'using integer as NULL pointer' warning Switch empty tree and blob lookups to use hash abstraction Integrate hash algorithm support with repo setup Add structure representing hash algorithm setup: expose enumerated repo info
2017-11-27Merge branch 'sw/pull-ipv46-passthru'Libravatar Junio C Hamano1-0/+12
Contrary to the documentation, "git pull -4/-6 other-args" did not ask the underlying "git fetch" to go over IPv4/IPv6, which has been corrected. * sw/pull-ipv46-passthru: pull: pass -4/-6 option to 'git fetch'
2017-11-21pull: pass -4/-6 option to 'git fetch'Libravatar Shuyu Wei1-0/+12
The -4/-6 option should be passed through to 'git fetch' to be consistent with the man page. Signed-off-by: Wei Shuyu <wsy@dogben.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-15Merge branch 'ma/reduce-heads-leakfix'Libravatar Junio C Hamano1-1/+4
Leak fixes. * ma/reduce-heads-leakfix: reduce_heads: fix memory leaks builtin/merge-base: free commit lists
2017-11-13Switch empty tree and blob lookups to use hash abstractionLibravatar brian m. carlson1-1/+1
Switch the uses of empty_tree_oid and empty_blob_oid to use the current_hash abstraction that represents the current hash algorithm in use. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08reduce_heads: fix memory leaksLibravatar Martin Ågren1-1/+4
We currently have seven callers of `reduce_heads(foo)`. Six of them do not use the original list `foo` again, and actually, all six of those end up leaking it. Introduce and use `reduce_heads_replace(&foo)` as a leak-free version of `foo = reduce_heads(foo)` to fix several of these. Fix the remaining leaks using `free_commit_list()`. While we're here, document `reduce_heads()` and mark it as `extern`. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-06Merge branch 'bc/object-id'Libravatar Junio C Hamano1-1/+1
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (25 commits) refs/files-backend: convert static functions to object_id refs: convert read_raw_ref backends to struct object_id refs: convert peel_object to struct object_id refs: convert resolve_ref_unsafe to struct object_id worktree: convert struct worktree to object_id refs: convert resolve_gitlink_ref to struct object_id Convert remaining callers of resolve_gitlink_ref to object_id sha1_file: convert index_path and index_fd to struct object_id refs: convert reflog_expire parameter to struct object_id refs: convert read_ref_at to struct object_id refs: convert peel_ref to struct object_id builtin/pack-objects: convert to struct object_id pack-bitmap: convert traverse_bitmap_commit_list to object_id refs: convert dwim_log to struct object_id builtin/reflog: convert remaining unsigned char uses to object_id refs: convert dwim_ref and expand_ref to struct object_id refs: convert read_ref and read_ref_full to object_id refs: convert resolve_refdup and refs_resolve_refdup to struct object_id Convert check_connected to use struct object_id refs: update ref transactions to use struct object_id ...
2017-10-16refs: convert update_ref and refs_update_ref to use struct object_idLibravatar brian m. carlson1-1/+1
Convert update_ref, refs_update_ref, and write_pseudoref to use struct object_id. Update the existing callers as well. Remove update_ref_oid, as it is no longer needed. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13pull: pass --signoff/--no-signoff to "git merge"Libravatar W. Trevor King1-0/+6
merge can take --signoff, but without pull passing --signoff down, it is inconvenient to use; allow 'pull' to take the option and pass it through. The order of options in merge-options.txt is mostly alphabetical by long option since 7c85d274 (Documentation/merge-options.txt: order options in alphabetical groups, 2009-10-22). The long-option bit didn't make it into the commit message, but it's under the fold in [1]. I've put --signoff between --log and --stat to preserve the alphabetical order. [1]: https://public-inbox.org/git/87iqe7zspn.fsf@jondo.cante.net/ Signed-off-by: W. Trevor King <wking@tremily.us> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07pull: honor submodule.recurse config optionLibravatar Nicolas Morey-Chaisemartin1-0/+4
"git pull" supports a --recurse-submodules option but does not parse the submodule.recurse configuration item to set the default for that option. Meanwhile "git fetch" does support submodule.recurse, producing confusing behavior: when submodule.recurse is enabled, "git pull" recursively fetches submodules but does not update them after fetch. Handle submodule.recurse in "git pull" to fix this. Reported-by: Magnus Homann <magnus@homann.se> Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07pull: fix cli and config option parsing orderLibravatar Nicolas Morey-Chaisemartin1-2/+2
pull parses first the cli options and then the config option. The expected behavior is the other way around, so that config options can not override the cli ones. This patch changes the parsing order so config options are parsed first. Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-22Merge branch 'ma/parse-maybe-bool'Libravatar Junio C Hamano1-2/+2
Code clean-up. * ma/parse-maybe-bool: parse_decoration_style: drop unused argument `var` treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool config: make git_{config,parse}_maybe_bool equivalent config: introduce git_parse_maybe_bool_text t5334: document that git push --signed=1 does not work Doc/git-{push,send-pack}: correct --sign= to --signed=
2017-08-07treewide: deprecate git_config_maybe_bool, use git_parse_maybe_boolLibravatar Martin Ågren1-2/+2
The only difference between these is that the former takes an argument `name` which it ignores completely. Still, the callers are quite careful to provide reasonable values for it. Once in-flight topics have landed, we should be able to remove git_config_maybe_bool. In the meantime, document it as deprecated in the technical documentation. While at it, document git_parse_maybe_bool. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-13Merge branch 'sb/pull-rebase-submodule'Libravatar Junio C Hamano1-10/+63
"git pull --rebase --recurse-submodules" learns to rebase the branch in the submodules to an updated base. * sb/pull-rebase-submodule: builtin/fetch cleanup: always set default value for submodule recursing pull: optionally rebase submodules (remote submodule changes only) builtin/fetch: parse recurse-submodules-default at default options parsing builtin/fetch: factor submodule recurse parsing out to submodule config
2017-06-24Merge branch 'bw/config-h'Libravatar Junio C Hamano1-0/+1
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-23pull: optionally rebase submodules (remote submodule changes only)Libravatar Stefan Beller1-10/+63
Teach pull to optionally update submodules when '--recurse-submodules' is provided. This will teach pull to run 'submodule update --rebase' when the '--recurse-submodules' and '--rebase' flags are given under specific circumstances. On a rebase workflow: ===================== 1. Both sides change the submodule ------------------------------ Let's assume the following history in a submodule: H---I---J---K---L local branch \ M---N---O---P remote branch and the following in the superproject (recorded submodule in parens): A(H)---B(I)---F(K)---G(L) local branch \ C(N)---D(N)---E(P) remote branch In an ideal world this would rebase the submodule and rewrite the submodule pointers that the superproject points at such that the superproject looks like A(H)---B(I) F(K')---G(L') rebased branch \ / C(N)---D(N)---E(P) remote branch and the submodule as: J---K---L (old dangeling tip) / H---I J'---K'---L' rebased branch \ / M---N---O---P remote branch And if a conflict arises in the submodule the superproject rebase would stop at that commit at which the submodule conflict occurs. Currently a "pull --rebase" in the superproject produces a merge conflict as the submodule pointer changes are conflicting and cannot be resolved. 2. Local submodule changes only ----------------------- Assuming histories as above, except that the remote branch would not contain submodule changes, then a result as A(H)---B(I) F(K)---G(L) rebased branch \ / C(I)---D(I)---E(I) remote branch is desire-able. This is what currently happens in rebase. If the recursive flag is given, the ideal git would produce a superproject as: A(H)---B(I) F(K')---G(L') rebased branch (incl. sub rebase!) \ / C(I)---D(I)---E(I) remote branch and the submodule as: J---K---L (old dangeling tip) / H---I J'---K'---L' locally rebased branch \ / M---N---O---P advanced branch This patch doesn't address this issue, however a test is added that this fails up front. 3. Remote submodule changes only ---------------------- Assuming histories as in (1) except that the local superproject branch would not have touched the submodule the rebase already works out in the superproject with no conflicts: A(H)---B(I) F(P)---G(P) rebased branch (no sub changes) \ / C(N)---D(N)---E(P) remote branch The recurse flag as presented in this patch would additionally update the submodule as: H---I J'---K'---L' rebased branch \ / M---N---O---P remote branch As neither J, K, L nor J', K', L' are referred to from the superproject, no rewriting of the superproject commits is required. Conclusion for 'pull --rebase --recursive' ----------------------------------------- If there are no local superproject changes it is sufficient to call "submodule update --rebase" as this produces the desired results. In case of conflicts, the behavior is the same as in 'submodule update --recursive' which is assumed to be sane. This patch implements (3) only. On a merge workflow: ==================== We'll start off with the same underlying DAG as in (1) in the rebase workflow. So in an ideal world a 'pull --merge --recursive' would produce this: H---I---J---K---L----X \ / M---N---O---P with X as the new merge-commit in the submodule and the superproject as: A(H)---B(I)---F(K)---G(L)---Y(X) \ / C(N)---D(N)---E(P) However modifying the submodules on the fly is not supported in git-merge such that Y(X) is not easy to produce in a single patch. In fact git-merge doesn't know about submodules at all. However when at least one side does not contain commits touching the submodule at all, then we do not need to perform the merge for the submodule but a fast-forward can be done via checking out either L or P in the submodule. This strategy is implemented in 68d03e4a6e (Implement automatic fast-forward merge for submodules, 2010-07-07) already, so to align with the rebase behavior we need to also update the worktree of the submodule. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15config: don't include config.h by defaultLibravatar Brandon Williams1-0/+1
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'nd/fopen-errors'Libravatar Junio C Hamano1-2/+1
We often try to open a file for reading whose existence is optional, and silently ignore errors from open/fopen; report such errors if they are not due to missing files. * nd/fopen-errors: mingw_fopen: report ENOENT for invalid file names mingw: verify that paths are not mistaken for remote nicknames log: fix memory leak in open_next_file() rerere.c: move error_errno() closer to the source system call print errno when reporting a system call error wrapper.c: make warn_on_inaccessible() static wrapper.c: add and use fopen_or_warn() wrapper.c: add and use warn_on_fopen_errors() config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD clone: use xfopen() instead of fopen() use xfopen() in more places git_fopen: fix a sparse 'not declared' warning
2017-06-05Merge branch 'tb/pull-ff-rebase-autostash'Libravatar Junio C Hamano1-11/+14
"git pull --rebase --autostash" didn't auto-stash when the local history fast-forwards to the upstream. * tb/pull-ff-rebase-autostash: pull: ff --rebase --autostash works in dirty repo
2017-06-01pull: ff --rebase --autostash works in dirty repoLibravatar Tyler Brazier1-11/+14
When `git pull --rebase --autostash` in a dirty repository resulted in a fast-forward, nothing was being autostashed and the pull failed. This was due to a shortcut to avoid running rebase when we can fast-forward, but autostash is ignored on that codepath. Now we will only take the shortcut if autostash is not in effect. Based on a few tests against the git.git repo, the shortcut does not seem to give us significant performance benefits, on Linux at least. Regardless, it is more important to be correct than to be fast. Signed-off-by: Tyler Brazier <tyler@tylerbrazier.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26use xfopen() in more placesLibravatar Nguyễn Thái Ngọc Duy1-2/+1
xfopen() - provides error details - explains error on reading, or writing, or whatever operation - has l10n support - prints file name in the error Some of these are missing in the places that are replaced with xfopen(), which is a clear win. In some other places, it's just less code (not as clearly a win as the previous case but still is). The only slight regresssion is in remote-testsvn, where we don't report the file class (marks files) in the error messages anymore. But since this is a _test_ svn remote transport, I'm not too concerned. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08merge: convert checkout_fast_forward to struct object_idLibravatar brian m. carlson1-2/+2
Converting checkout_fast_forward is required to convert parse_tree_indirect. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>