To explicitly remove the sequencer state for a fresh cherry-pick or
revert invocation, introduce a new subcommand called "--reset" to
remove the sequencer state.
Take the opportunity to publicly expose the sequencer paths, and a
generic function called "remove_sequencer_state" that various git
programs can use to remove the sequencer state in a uniform manner;
"git reset" uses it later in this series. Introducing this public API
is also in line with our long-term goal of eventually factoring out
functions from revert.c into a generic commit sequencer.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Apart from its central objective of calling into the picking
mechanism, pick_commits creates a sequencer directory, prepares a todo
list, and even acts upon the "--reset" subcommand. This makes for a
bad API since the central worry of callers is to figure out whether or
not any conflicts were encountered during the cherry picking. The
current API is like:
if (pick_commits(opts) < 0)
print "Something failed, we're not sure what"
So, change pick_commits so that it's only responsible for picking
commits in a loop and reporting any errors, leaving the rest to a new
function called pick_revisions. Consequently, the API of pick_commits
becomes much clearer:
act_on_subcommand(opts->subcommand);
todo_list = prepare_todo_list();
if (pick_commits(todo_list, opts) < 0)
print "Error encountered while picking commits"
Now, callers can easily call-in to the cherry-picking machinery by
constructing an arbitrary todo list along with some options.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the same spirit as ".git/sequencer/head" and ".git/sequencer/todo",
introduce ".git/sequencer/opts" to persist the replay_opts structure
for continuing after a conflict resolution. Use the gitconfig format
for this file so that it looks like:
[options]
signoff = true
record-origin = true
mainline = 1
strategy = recursive
strategy-option = patience
strategy-option = ours
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ever since v1.7.2-rc1~4^2~7 (revert: allow cherry-picking more than
one commit, 2010-06-02), a single invocation of "git cherry-pick" or
"git revert" can perform picks of several individual commits. To
implement features like "--continue" to continue the whole operation,
we will need to store some information about the state and the plan at
the beginning. Introduce a ".git/sequencer/head" file to store this
state, and ".git/sequencer/todo" file to store the plan. The head
file contains the SHA-1 of the HEAD before the start of the operation,
and the todo file contains an instruction sheet whose format is
inspired by the format of the "rebase -i" instruction sheet. As a
result, a typical todo file looks like:
pick 8537f0e submodule add: test failure when url is not configured
pick 4d68932 submodule add: allow relative repository path
pick f22a17e submodule add: clean up duplicated code
pick 59a5775 make copy_ref globally available
Since SHA-1 hex is abbreviated using an find_unique_abbrev(), it is
unambiguous. This does not guarantee that there will be no ambiguity
when more objects are added to the repository.
These two files alone are not enough to implement a "--continue" that
remembers the command-line options specified; later patches in the
series save them too.
These new files are unrelated to the existing .git/CHERRY_PICK_HEAD,
which will still be useful while committing after a conflict
resolution.
Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "--ff" command-line option cannot be used with some other
command-line options. However, parse_args still parses these
incompatible options into a replay_opts structure for use by the rest
of the program. Although pick_commits, the current gatekeeper to the
cherry-pick machinery, checks the validity of the replay_opts
structure before before starting its operation, there will be multiple
entry points to the cherry-pick machinery in future. To futureproof
the code and catch these errors in one place, make sure that an
invalid replay_opts structure is not created by parse_args in the
first place. We still check the replay_opts structure for validity in
pick_commits, but this is an assert() now to emphasize that it's the
caller's responsibility to get it right.
Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, revert_or_cherry_pick sets up a default git config, parses
command-line arguments, before preparing to pick commits. This makes
for a bad API as the central worry of callers is to assert whether or
not a conflict occured while cherry picking. The current API is like:
if (revert_or_cherry_pick(argc, argv, opts) < 0)
print "Something failed, we're not sure what"
Simplify and rename revert_or_cherry_pick to pick_commits so that it
only has the responsibility of setting up the revision walker and
picking commits in a loop. Transfer the remaining work to its
callers. Now, the API is simplified as:
if (parse_args(argc, argv, opts) < 0)
print "Can't parse arguments"
if (pick_commits(opts) < 0)
print "Error encountered in picking machinery"
Later in the series, pick_commits will also serve as the starting
point for continuing a cherry-pick or revert.
Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current code uses a set of file-scope static variables to tell the
cherry-pick/ revert machinery how to replay the changes, and
initializes them by parsing the command-line arguments. In later
steps in this series, we would like to introduce an API function that
calls into this machinery directly and have a way to tell it what to
do. Hence, introduce a structure to group these variables, so that
the API can take them as a single replay_options parameter. The only
exception is the variable "me" -- remove it since it not an
independent option, and can be inferred from the action.
Unfortunately, this patch introduces a minor regression. Parsing
strategy-option violates a C89 rule: Initializers cannot refer to
variables whose address is not known at compile time. Currently, this
rule is violated by some other parts of Git as well, and it is
possible to get GCC to report these instances using the "-std=c89
-pedantic" option.
Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Functions which act on commits currently rely on a file-scope static
variable to be set before they're called. Consequently, the API and
corresponding callsites are ugly and unclear. Remove this variable
and change their API to accept the commit to act on as additional
argument so that the callsites change from looking like
commit = prepare_a_commit();
act_on_commit();
to looking like
commit = prepare_a_commit();
act_on_commit(commit);
This change is also in line with our long-term goal of exposing some
of these functions through a public API.
Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "-x" command-line option is used to record the name of the
original commits being picked in the commit message. The variable
corresponding to this option is named "no_replay" for historical
reasons; the name is especially confusing because the term "replay" is
used to describe what cherry-pick does (for example, in the
documentation of the "--mainline" option). So, give the variable
corresponding to the "-x" command-line option a better name:
"record_origin".
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The only place get_encoding uses the global "commit" variable is when
writing an error message explaining that its lone argument was NULL.
Since the function's only caller ensures that a NULL argument isn't
passed, we can remove this check with two beneficial consequences:
1. Since the function doesn't use the global "commit" variable any
more, it won't need to change when we eliminate the global variable
later in the series.
2. Translators no longer need to localize an error message that will
never be shown.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The add_message_to_msg function has some dead code, an unclear API,
only one callsite. While it originally intended fill up an empty
commit message with the commit object name while picking, it really
doesn't do this -- a bug introduced in v1.5.1-rc1~65^2~2 (Make
git-revert & git-cherry-pick a builtin, 2007-03-01). Today, tests in
t3505-cherry-pick-empty.sh indicate that not filling up an empty
commit message is the desired behavior. Re-implement and inline the
function accordingly, with a beneficial side-effect: don't dereference
a NULL pointer when the commit doesn't have a delimeter after the
header.
Helped-by: Junio C Hamano <gitster@pobox.com>
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Enable future callers to report a conflict and not die immediately by
introducing a new function called error_resolve_conflict.
Re-implement die_resolve_conflict as a call to error_resolve_conflict
followed by a call to die. Consequently, the message printed by
die_resolve_conflict changes from
fatal: 'commit' is not possible because you have unmerged files.
Please, fix them up in the work tree ...
...
to
error: 'commit' is not possible because you have unmerged files.
hint: Fix them up in the work tree ...
hint: ...
fatal: Exiting because of an unresolved conflict.
Hints are printed using the same advise function introduced in
v1.7.3-rc0~26^2~3 (Introduce advise() to print hints, 2010-08-11).
Inspired-by: Christian Couder <chistian.couder@gmail.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* bc/maint-status-z-to-use-porcelain:
builtin/commit.c: set status_format _after_ option parsing
t7508: demonstrate status's failure to use --porcelain format with -z
Conflicts:
builtin/commit.c
* jk/format-patch-am:
format-patch: preserve subject newlines with -k
clean up calling conventions for pretty.c functions
pretty: add pp_commit_easy function for simple callers
mailinfo: always clean up rfc822 header folding
t: test subject handling in format-patch / am pipeline
Conflicts:
builtin/branch.c
builtin/log.c
commit.h
* ab/i18n-fixup: (24 commits)
i18n: use test_i18n{cmp,grep} in t7600, t7607, t7611 and t7811
i18n: use test_i18n{grep,cmp} in t7508
i18n: use test_i18ngrep in t7506
i18n: use test_i18ngrep and test_i18ncmp in t7502
i18n: use test_i18ngrep in t7501
i18n: use test_i18ncmp in t7500
i18n: use test_i18ngrep in t7201
i18n: use test_i18ncmp and test_i18ngrep in t7102 and t7110
i18n: use test_i18ncmp and test_i18ngrep in t5541, t6040, t6120, t7004, t7012 and t7060
i18n: use test_i18ncmp and test_i18ngrep in t3700, t4001 and t4014
i18n: use test_i18ncmp and test_i18ngrep in t3203, t3501 and t3507
i18n: use test_i18ngrep in t2020, t2204, t3030, and t3200
i18n: use test_i18ngrep in lib-httpd and t2019
i18n: do not overuse C_LOCALE_OUTPUT (grep)
i18n: use test_i18ncmp in t1200 and t2200
i18n: .git file is not a human readable message (t5601)
i18n: do not overuse C_LOCALE_OUTPUT
i18n: mark init-db messages for translation
i18n: mark checkout plural warning for translation
i18n: mark checkout --detach messages for translation
...
* jc/rename-degrade-cc-to-c:
diffcore-rename: fall back to -C when -C -C busts the rename limit
diffcore-rename: record filepair for rename src
diffcore-rename: refactor "too many candidates" logic
builtin/diff.c: remove duplicated call to diff_result_code()
* mk/grep-pcre:
git-grep: Fix problems with recently added tests
git-grep: Update tests (mainly for -P)
Makefile: Pass USE_LIBPCRE down in GIT-BUILD-OPTIONS
git-grep: update tests now regexp type is "last one wins"
git-grep: do not die upon -F/-P when grep.extendedRegexp is set.
git-grep: Bail out when -P is used with -F or -E
grep: Add basic tests
configure: Check for libpcre
git-grep: Learn PCRE
grep: Extract compile_regexp_failed() from compile_regexp()
grep: Fix a typo in a comment
grep: Put calls to fixmatch() and regmatch() into patmatch()
contrib/completion: --line-number to git grep
Documentation: Add --line-number to git-grep synopsis
* jc/notes-batch-removal:
show: --ignore-missing
notes remove: --stdin reads from the standard input
notes remove: --ignore-missing
notes remove: allow removing more than one
* jk/haves-from-alternate-odb:
receive-pack: eliminate duplicate .have refs
bisect: refactor sha1_array into a generic sha1 list
refactor refs_from_alternate_cb to allow passing extra data
The previous commit simply hijacked --quiet and essentially made it into a
no-op. Instead, take it as a cue that the end user wants to omit the patch
output from commands that default to show patches, e.g. "show".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In older versions of git, we used rfc822 header folding to
indicate that the original subject line had multiple lines
in it. But since a1f6baa (format-patch: wrap long header
lines, 2011-02-23), we now use header folding whenever there
is a long line.
This means that "git am" cannot trust header folding as a
sign from format-patch that newlines should be preserved.
Instead, format-patch needs to signal more explicitly that
the newlines are significant. This patch does so by
rfc2047-encoding the newlines in the subject line. No
changes are needed on the "git am" end; it already decodes
the newlines properly.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have a pretty_print_context representing the parameters
for a pretty-print session, but we did not use it uniformly.
As a result, functions kept growing more and more arguments.
Let's clean this up in a few ways:
1. All pretty-print pp_* functions now take a context.
This lets us reduce the number of arguments to these
functions, since we were just passing around the
context values separately.
2. The context argument now has a cmit_fmt field, which
was passed around separately. That's one less argument
per function.
3. The context argument always comes first, which makes
calling a little more uniform.
This drops lines from some callers, and adds lines in a few
places (because we need an extra line to set the context's
fmt field). Overall, we don't save many lines, but the lines
that are there are a lot simpler and more readable.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many callers don't actually care about the pretty print
context at all; let's just give them a simple way of
pretty-printing a commit without having to create a context
struct.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Without the "-k" option, mailinfo will convert a folded
subject header like:
Subject: this is a
subject that doesn't
fit on one line
into a single line. With "-k", however, we assumed that
these newlines were significant and represented something
that the sending side would want us to preserve.
For messages created by format-patch, this assumption was
broken by a1f6baa (format-patch: wrap long header lines,
2011-02-23). For messages sent by arbitrary MUAs, this was
probably never a good assumption to make, as they may have
been folding subjects in accordance with rfc822's line
length recommendations all along.
This patch now joins folded lines with a single whitespace
character. This treats header folding purely as a syntactic
feature of the transport mechanism, not as something that
format-patch is trying to tell us about the original
subject.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 13fc2c1 (remote: disallow some nonsensical option
combinations, 2011-03-30) made it impossible to use "remote
add -t foo --mirror". The argument was that specifying
specific branches is useless because:
1. Push mirrors do not want a refspec at all.
2. The point of fetch mirroring is to use a broad refspec
like "refs/*", but using "-t" overrides that.
Point (1) is valid; "-t" with push mirrors is useless. But
point (2) ignored another side effect of using --mirror: it
fetches the refs directly into the refs/ namespace as they
are found upstream, instead of placing them in a
separate-remote layout.
So 13fc2c1 was overly constrictive, and disallowed
reasonable specific-branch mirroring, like:
git remote add -t heads/foo -t heads/bar --mirror=fetch
which makes the local "foo" and "bar" branches direct
mirrors of the remote, but does not fetch anything else.
This patch restores the original behavior, but only for
fetch mirrors.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/git-connection-deadlock-fix:
test core.gitproxy configuration
send-pack: avoid deadlock on git:// push with failed pack-objects
connect: let callers know if connection is a socket
connect: treat generic proxy processes like ssh processes
Conflicts:
connect.c
* js/maint-send-pack-stateless-rpc-deadlock-fix:
sideband_demux(): fix decl-after-stmt
send-pack: unbreak push over stateless rpc
send-pack: avoid deadlock when pack-object dies early
* jc/bigfile:
Bigfile: teach "git add" to send a large file straight to a pack
index_fd(): split into two helper functions
index_fd(): turn write_object and format_check arguments into one flag
The option can be used to check if read-tree with the same set of other
options like "-m" and "-u" would succeed without actually changing either
the index or the working tree.
The relevant tests in the t10?? range were extended to do a read-tree -n
before the real read-tree to make sure neither the index nor any local
files were changed with -n and the same exit code as without -n is
returned. The helper functions added for that purpose reside in the new
t/lib-read-tree.sh file.
The only exception is #13 in t1004 ("unlinking an un-unlink-able
symlink"). As this is an issue of wrong directory permissions it is not
detected with -n.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/magic-pathspec:
setup.c: Fix some "symbol not declared" sparse warnings
t3703: Skip tests using directory name ":" on Windows
revision.c: leave a note for "a lone :" enhancement
t3703, t4208: add test cases for magic pathspec
rev/path disambiguation: further restrict "misspelled index entry" diag
fix overslow :/no-such-string-ever-existed diagnostics
fix overstrict :<path> diagnosis
grep: use get_pathspec() correctly
pathspec: drop "lone : means no pathspec" from get_pathspec()
Revert "magic pathspec: add ":(icase)path" to match case insensitively"
magic pathspec: add ":(icase)path" to match case insensitively
magic pathspec: futureproof shorthand form
magic pathspec: add tentative ":/path/from/top/level" pathspec support
* jc/replacing:
read_sha1_file(): allow selective bypassing of replacement mechanism
inline lookup_replace_object() calls
read_sha1_file(): get rid of read_sha1_file_repl() madness
t6050: make sure we test not just commit replacement
Declare lookup_replace_object() in cache.h, not in commit.h
Conflicts:
environment.c
* jk/git-connection-deadlock-fix:
test core.gitproxy configuration
send-pack: avoid deadlock on git:// push with failed pack-objects
connect: let callers know if connection is a socket
connect: treat generic proxy processes like ssh processes
Conflicts:
connect.c
