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2016-01-15strbuf: introduce strbuf_getline_{lf,nul}()Junio C Hamano
The strbuf_getline() interface allows a byte other than LF or NUL as the line terminator, but this is only because I wrote these codepaths anticipating that there might be a value other than NUL and LF that could be useful when I introduced line_termination long time ago. No useful caller that uses other value has emerged. By now, it is clear that the interface is overly broad without a good reason. Many codepaths have hardcoded preference to read either LF terminated or NUL terminated records from their input, and then call strbuf_getline() with LF or NUL as the third parameter. This step introduces two thin wrappers around strbuf_getline(), namely, strbuf_getline_lf() and strbuf_getline_nul(), and mechanically rewrites these call sites to call either one of them. The changes contained in this patch are: * introduction of these two functions in strbuf.[ch] * mechanical conversion of all callers to strbuf_getline() with either '\n' or '\0' as the third parameter to instead call the respective thin wrapper. After this step, output from "git grep 'strbuf_getline('" would become a lot smaller. An interim goal of this series is to make this an empty set, so that we can have strbuf_getline_crlf() take over the shorter name strbuf_getline(). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-20Remove get_object_hash.brian m. carlson
Convert all instances of get_object_hash to use an appropriate reference to the hash member of the oid member of struct object. This provides no functional change, as it is essentially a macro substitution. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Convert struct object to object_idbrian m. carlson
struct object is one of the major data structures dealing with object IDs. Convert it to use struct object_id instead of an unsigned char array. Convert get_object_hash to refer to the new member as well. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-10-16Merge branch 'pt/pull-builtin' into maintJunio C Hamano
* pt/pull-builtin: pull: enclose <options> in brackets in the usage string merge: grammofix in please-commit-before-merge message
2015-10-16pull: enclose <options> in brackets in the usage stringAlex Henrie
All the other placeholders are already shown that way. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-11pull: don't mark values for option "rebase" for translationRalf Thielow
"false|true|preserve" are actual values for option "rebase" of the "git-pull" command and should therefore not be marked for translation. Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25Merge branch 'mh/tempfile'Junio C Hamano
The "lockfile" API has been rebuilt on top of a new "tempfile" API. * mh/tempfile: credential-cache--daemon: use tempfile module credential-cache--daemon: delete socket from main() gc: use tempfile module to handle gc.pid file lock_repo_for_gc(): compute the path to "gc.pid" only once diff: use tempfile module setup_temporary_shallow(): use tempfile module write_shared_index(): use tempfile module register_tempfile(): new function to handle an existing temporary file tempfile: add several functions for creating temporary files prepare_tempfile_object(): new function, extracted from create_tempfile() tempfile: a new module for handling temporary files commit_lock_file(): use get_locked_file_path() lockfile: add accessor get_lock_file_path() lockfile: add accessors get_lock_file_fd() and get_lock_file_fp() create_bundle(): duplicate file descriptor to avoid closing it twice lockfile: move documentation to lockfile.h and lockfile.c
2015-07-22pull: allow dirty tree when rebase.autostash enabledKevin Daudt
rebase learned to stash changes when it encounters a dirty work tree, but git pull --rebase does not. Only verify if the working tree is dirty when rebase.autostash is not enabled. Signed-off-by: Kevin Daudt <me@ikke.info> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: remove redirection to git-pull.shPaul Tan
At the beginning of the rewrite of git-pull.sh to C, we introduced a redirection to git-pull.sh if the environment variable _GIT_USE_BUILTIN_PULL was not defined in order to not break test scripts that relied on a functional git-pull. Now that all of git-pull's functionality has been re-implemented in builtin/pull.c, remove this redirection, and retire the old git-pull.sh into contrib/examples/. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull --rebase: error on no merge candidate casesPaul Tan
Tweak the error messages printed by die_no_merge_candidates() to take into account that we may be "rebasing against" rather than "merging with". Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull --rebase: exit early when the working directory is dirtyPaul Tan
Re-implement the behavior introduced by f9189cf (pull --rebase: exit early when the working directory is dirty, 2008-05-21). Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: configure --rebase via branch.<name>.rebase or pull.rebasePaul Tan
Since cd67e4d (Teach 'git pull' about --rebase, 2007-11-28), fetch+rebase could be set by default by defining the config variable branch.<name>.rebase. This setting can be overriden on the command line by --rebase and --no-rebase. Since 6b37dff (pull: introduce a pull.rebase option to enable --rebase, 2011-11-06), git-pull --rebase can also be configured via the pull.rebase configuration option. Re-implement support for these two configuration settings by introducing config_get_rebase() which is called before parse_options() to set the default value of opt_rebase. Helped-by: Stefan Beller <sbeller@google.com> Helped-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: teach git pull about --rebasePaul Tan
Since cd67e4d (Teach 'git pull' about --rebase, 2007-11-28), if the --rebase option is set, git-rebase is run instead of git-merge. Re-implement this by introducing run_rebase(), which is called instead of run_merge() if opt_rebase is a true value. Since c85c792 (pull --rebase: be cleverer with rebased upstream branches, 2008-01-26), git-pull handles the case where the upstream branch was rebased since it was last fetched. The fork point (old remote ref) of the branch from the upstream branch is calculated before fetch, and then rebased from onto the new remote head (merge_head) after fetch. Re-implement this by introducing get_merge_branch_2() and get_merge_branch_1() to find the upstream branch for the specified/current branch, and get_rebase_fork_point() which will find the fork point between the upstream branch and current branch. However, the above change created a problem where git-rebase cannot detect commits that are already upstream, and thus may result in unnecessary conflicts. cf65426 (pull --rebase: Avoid spurious conflicts and reapplying unnecessary patches, 2010-08-12) fixes this by ignoring the above old remote ref if it is contained within the merge base of the merge head and the current branch. This is re-implemented in run_rebase() where fork_point is not used if it is the merge base returned by get_octopus_merge_base(). Helped-by: Stefan Beller <sbeller@google.com> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: set reflog messagePaul Tan
f947413 (Use GIT_REFLOG_ACTION environment variable instead., 2006-12-28) established git-pull's method for setting the reflog message, which is to set the environment variable GIT_REFLOG_ACTION to the evaluation of "pull${1+ $*}" if it has not already been set. Re-implement this behavior. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: implement pulling into an unborn branchPaul Tan
b4dc085 (pull: merge into unborn by fast-forwarding from empty tree, 2013-06-20) established git-pull's current behavior of pulling into an unborn branch by fast-forwarding the work tree from an empty tree to the merge head, then setting HEAD to the merge head. Re-implement this behavior by introducing pull_into_void() which will be called instead of run_merge() if HEAD is invalid. Helped-by: Stephen Robin <stephen.robin@gmail.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: fast-forward working tree if head is updatedPaul Tan
Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull, upon detecting that git-fetch updated the current head, will fast-forward the working tree to the updated head commit. Re-implement this behavior. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: check if in unresolved merge statePaul Tan
Since d38a30d (Be more user-friendly when refusing to do something because of conflict., 2010-01-12), git-pull will error out with user-friendly advices if the user is in the middle of a merge or has unmerged files. Re-implement this behavior. While the "has unmerged files" case can be handled by die_resolve_conflict(), we introduce a new function die_conclude_merge() for printing a different error message for when there are no unmerged files but the merge has not been finished. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: support pull.ff configPaul Tan
Since b814da8 (pull: add pull.ff configuration, 2014-01-15), git-pull.sh would lookup the configuration value of "pull.ff", and set the flag "--ff" if its value is "true", "--no-ff" if its value is "false" and "--ff-only" if its value is "only". Re-implement this behavior. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: error on no merge candidatesPaul Tan
Commit a8c9bef (pull: improve advice for unconfigured error case, 2009-10-05) fully established the current advices given by git-pull for the different cases where git-fetch will not have anything marked for merge: 1. We fetched from a specific remote, and a refspec was given, but it ended up not fetching anything. This is usually because the user provided a wildcard refspec which had no matches on the remote end. 2. We fetched from a non-default remote, but didn't specify a branch to merge. We can't use the configured one because it applies to the default remote, and thus the user must specify the branches to merge. 3. We fetched from the branch's or repo's default remote, but: a. We are not on a branch, so there will never be a configured branch to merge with. b. We are on a branch, but there is no configured branch to merge with. 4. We fetched from the branch's or repo's default remote, but the configured branch to merge didn't get fetched (either it doesn't exist, or wasn't part of the configured fetch refspec) Re-implement the above behavior by implementing get_merge_heads() to parse the heads in FETCH_HEAD for merging, and implementing die_no_merge_candidates(), which will be called when FETCH_HEAD has no heads for merging. Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-18pull: pass git-fetch's options to git-fetchPaul Tan
Since eb2a8d9 (pull: handle git-fetch's options as well, 2015-06-02), git-pull knows about and handles git-fetch's options, passing them to git-fetch. Re-implement this behavior. Since 29609e6 (pull: do nothing on --dry-run, 2010-05-25) git-pull supported the --dry-run option, exiting after git-fetch if --dry-run is set. Re-implement this behavior. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15pull: pass git-merge's options to git-mergePaul Tan
Specify git-merge's options in the option list, and pass any specified options to git-merge. These options are: * -n, --stat, --summary: since d8abe14 (merge, pull: introduce '--(no-)stat' option, 2008-04-06) * --log: since efb779f (merge, pull: add '--(no-)log' command line option, 2008-04-06) * --squash: since 7d0c688 (git-merge --squash, 2006-06-23) * --commit: since 5072a32 (Teach git-pull about --[no-]ff, --no-squash and --commit, 2007-10-29) * --edit: since 8580830 ("git pull" doesn't know "--edit", 2012-02-11) * --ff, --ff-only: since 5072a32 (Teach git-pull about --[no-]ff, --no-squash and --commit, 2007-10-29) * --verify-signatures: since efed002 (merge/pull: verify GPG signatures of commits being merged, 2013-03-31) * -s, --strategy: since 60fb5b2 (Use git-merge in git-pull (second try)., 2005-09-25) * -X, --strategy-option: since ee2c795 (Teach git-pull to pass -X<option> to git-merge, 2009-11-25) * -S, --gpg-sign: since ea230d8 (pull: add the --gpg-sign option., 2014-02-10) Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15pull: pass verbosity, --progress flags to fetch and mergePaul Tan
7f87aff (Teach/Fix pull/fetch -q/-v options, 2008-11-15) taught git-pull to accept the verbosity -v and -q options and pass them to git-fetch and git-merge. Re-implement support for the verbosity flags by adding it to the options list and introducing argv_push_verbosity() to push the flags into the argv array used to execute git-fetch and git-merge. 9839018 (fetch and pull: learn --progress, 2010-02-24) and bebd2fd (pull: propagate --progress to merge, 2011-02-20) taught git-pull to accept the --progress option and pass it to git-fetch and git-merge. Use OPT_PASSTHRU() implemented earlier to pass the "--[no-]progress" command line options to git-fetch and git-merge. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15pull: implement fetch + mergePaul Tan
Implement the fetch + merge functionality of git-pull, by first running git-fetch with the repo and refspecs provided on the command line, then running git-merge on FETCH_HEAD to merge the fetched refs into the current branch. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15pull: implement skeletal builtin pullPaul Tan
For the purpose of rewriting git-pull.sh into a C builtin, implement a skeletal builtin/pull.c that redirects to $GIT_EXEC_PATH/git-pull.sh if the environment variable _GIT_USE_BUILTIN_PULL is not defined. This allows us to fall back on the functional git-pull.sh when running the test suite for tests that depend on a working git-pull implementation. This redirection should be removed when all the features of git-pull.sh have been re-implemented in builtin/pull.c. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>