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2015-09-01rerere: release lockfile in non-writing functionsLibravatar Jeff King5-16/+61
There's a bug in builtin/am.c in which we take a lock on MERGE_RR recursively. But rather than fix am.c, this patch fixes the confusing interface from rerere.c that caused the bug. Read on for the gory details. The setup_rerere() function both reads the existing MERGE_RR file, and takes MERGE_RR.lock. In the rerere() and rerere_forget() functions, we end up in write_rr(), which will then commit the lock file. But for functions like rerere_clear() that do not write to MERGE_RR, we expect the caller to have handled setup_rerere(). That caller would then need to release the lockfile, but it can't; the lock struct is local to rerere.c. For builtin/rerere.c, this is OK. We run a single rerere operation and then exit immediately, which has the side effect of rolling back the lockfile. But in builtin/am.c, this is actively wrong. If we run "git am -3 --skip", we call setup-rerere twice without releasing the lock: 1. The "--skip" causes us to call am_rerere_clear(), which calls setup_rerere(), but never drops the lock. 2. We then proceed to the next patch. 3. The "--3way" may cause us to call rerere() to handle conflicts in that patch, but we are already holding the lock. The lockfile code dies with: BUG: prepare_tempfile_object called for active object We could fix this by having rerere_clear() call rollback_lock_file(). But it feels a bit odd for it to roll back a lockfile that it did not itself take. So let's simplify the interface further, and handle setup_rerere in the function itself, taking away the question from the caller over whether they need to do so. We can give rerere_gc() the same treatment, as well (even though it doesn't have any callers besides builtin/rerere.c at this point). Note that these functions don't take flags from their callers to pass along to setup_rerere; that's OK, because the flags would not be meaningful for what they are doing. Both of those functions need to hold the lock because even though they do not write to MERGE_RR, they are still writing and should be protected from a simultaneous "rerere" run. But rerere_remaining(), "rerere diff", and "rerere status" are all read-only operations. They want to setup_rerere(), but do not care about taking the lock in the first place. Since our update of MERGE_RR is the usual atomic rename done by commit_lock_file, they can just do a lockless read. For that, we teach setup_rerere a READONLY flag to avoid the lock. As a bonus, this pushes builtin/rerere.c's setup_rerere call closer to the functions that use it. Which means that "git rerere totally-bogus-command" will no longer silently exit(0) in a repository without rerere enabled. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-31Eighth batch for 2.6Libravatar Junio C Hamano1-0/+39
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-31Merge branch 'sg/describe-contains'Libravatar Junio C Hamano3-6/+14
"git describe" without argument defaulted to describe the HEAD commit, but "git describe --contains" didn't. Arguably, in a repository used for active development, such defaulting would not be very useful as the tip of branch is typically not tagged, but it is better to be consistent. * sg/describe-contains: describe --contains: default to HEAD when no commit-ish is given
2015-08-31Merge branch 'db/push-sign-if-asked'Libravatar Junio C Hamano14-152/+253
The client side codepaths in "git push" have been cleaned up and the user can request to perform an optional "signed push", i.e. sign only when the other end accepts signed push. * db/push-sign-if-asked: push: add a config option push.gpgSign for default signed pushes push: support signing pushes iff the server supports it builtin/send-pack.c: use parse_options API config.c: rename git_config_maybe_bool_text and export it as git_parse_maybe_bool transport: remove git_transport_options.push_cert gitremote-helpers.txt: document pushcert option Documentation/git-send-pack.txt: document --signed Documentation/git-send-pack.txt: wrap long synopsis line Documentation/git-push.txt: document when --signed may fail
2015-08-31Merge branch 'jk/notes-merge-config'Libravatar Junio C Hamano8-25/+187
"git notes merge" can be told with "--strategy=<how>" option how to automatically handle conflicts; this can now be configured by setting notes.mergeStrategy configuration variable. * jk/notes-merge-config: notes: teach git-notes about notes.<name>.mergeStrategy option notes: add notes.mergeStrategy option to select default strategy notes: add tests for --commit/--abort/--strategy exclusivity notes: extract parse_notes_merge_strategy to notes-utils notes: extract enum notes_merge_strategy to notes-utils.h notes: document cat_sort_uniq rewriteMode
2015-08-31Merge branch 'jc/am-state-fix'Libravatar Junio C Hamano10-44/+80
Recent reimplementation of "git am" changed the format of state files kept in $GIT_DIR/rebase-apply/ without meaning to do so, primarily because write_file() API was cumbersome to use and it was easy to mistakenly make text files with incomplete lines. Update write_file() interface to make it harder to misuse. * jc/am-state-fix: write_file(): drop caller-supplied LF from calls to create a one-liner file write_file_v(): do not leave incomplete line at the end write_file(): drop "fatal" parameter builtin/am: make sure state files are text builtin/am: introduce write_state_*() helper functions
2015-08-31Merge branch 'jc/log-p-cc'Libravatar Junio C Hamano1-9/+16
"git log --cc" did not show any patch, even though most of the time the user meant "git log --cc -p -m" to see patch output for commits with a single parent, and combined diff for merge commits. The command is taught to DWIM "--cc" (without "--raw" and other forms of output specification) to "--cc -p -m". * jc/log-p-cc: builtin/log.c: minor reformat log: show merge commit when --cc is given log: when --cc is given, default to -p unless told otherwise log: rename "tweak" helpers
2015-08-31Merge branch 'jk/fix-alias-pager-config-key-warnings'Libravatar Junio C Hamano5-12/+43
Because the configuration system does not allow "alias.0foo" and "pager.0foo" as the configuration key, the user cannot use '0foo' as a custom command name anyway, but "git 0foo" tried to look these keys up and emitted useless warnings before saying '0foo is not a git command'. These warning messages have been squelched. * jk/fix-alias-pager-config-key-warnings: config: silence warnings for command names with invalid keys
2015-08-31Merge branch 'jk/rev-list-has-no-notes'Libravatar Junio C Hamano4-0/+9
"git rev-list" does not take "--notes" option, but did not complain when one is given. * jk/rev-list-has-no-notes: rev-list: make it obvious that we do not support notes
2015-08-31Merge branch 'hv/submodule-config'Libravatar Junio C Hamano12-98/+836
The gitmodules API accessed from the C code learned to cache stuff lazily. * hv/submodule-config: submodule: allow erroneous values for the fetchRecurseSubmodules option submodule: use new config API for worktree configurations submodule: extract functions for config set and lookup submodule: implement a config API for lookup of .gitmodules values
2015-08-31Merge branch 'sg/config-name-only'Libravatar Junio C Hamano4-60/+74
"git config --list" output was hard to parse when values consist of multiple lines. "--name-only" option is added to help this. * sg/config-name-only: get_urlmatch: avoid useless strbuf write format_config: simplify buffer handling format_config: don't init strbuf config: restructure format_config() for better control flow completion: list variable names reliably with 'git config --name-only' config: add '--name-only' option to list only variable names
2015-08-28Sync with 2.5.1Libravatar Junio C Hamano3-2/+19
2015-08-28Seventh batch for 2.6Libravatar Junio C Hamano1-0/+8
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-28Merge branch 'cc/trailers-corner-case-fix'Libravatar Junio C Hamano2-2/+17
"interpret-trailers" helper mistook a single-liner log message that has a colon as the end of existing trailer. * cc/trailers-corner-case-fix: trailer: retitle a test and correct an in-comment message trailer: ignore first line of message
2015-08-28Merge branch 'dt/untracked-subdir'Libravatar Junio C Hamano2-20/+162
The experimental untracked-cache feature were buggy when paths with a few levels of subdirectories are involved. * dt/untracked-subdir: untracked cache: fix entry invalidation untracked-cache: fix subdirectory handling
2015-08-28Git 2.5.1Libravatar Junio C Hamano3-2/+19
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-28Mingw: verify both ends of the pipe () callLibravatar Jose F. Morales1-1/+1
The code to open and test the second end of the pipe clearly imitates the code for the first end. A little too closely, though... Let's fix the obvious copy-edit bug. Signed-off-by: Jose F. Morales <jfmcjf@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-26Sixth batch for 2.6Libravatar Junio C Hamano1-0/+17
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-26Merge branch 'sg/help-group'Libravatar Junio C Hamano3-52/+52
We rewrote one of the build scripts in Perl but this reimplements in Bourne shell. * sg/help-group: generate-cmdlist: re-implement as shell script
2015-08-26Merge branch 'sg/wt-status-header-inclusion'Libravatar Junio C Hamano2-1/+1
* sg/wt-status-header-inclusion: wt-status: move #include "pathspec.h" to the header
2015-08-26Merge branch 'as/docfix-reflog-expire-unreachable'Libravatar Junio C Hamano1-1/+1
* as/docfix-reflog-expire-unreachable: Documentation/config: fix inconsistent label on gc.*.reflogExpireUnreachable
2015-08-26Merge branch 'sg/t3020-typofix'Libravatar Junio C Hamano1-1/+1
* sg/t3020-typofix: t3020: fix typo in test description
2015-08-26Merge branch 'jc/calloc-pathspec'Libravatar Junio C Hamano2-2/+2
* jc/calloc-pathspec: ps_matched: xcalloc() takes nmemb and then element size
2015-08-26Merge branch 'dt/untracked-sparse'Libravatar Junio C Hamano1-1/+1
Test update. * dt/untracked-sparse: t7063: use --force-untracked-cache to speed up a bit
2015-08-26Merge branch 'pt/am-builtin'Libravatar Junio C Hamano1-1/+1
Rewrite "am" in "C". * pt/am-builtin: i18n: am: fix typo in description of -b option
2015-08-26Merge branch 'pt/am-builtin-abort-fix'Libravatar Junio C Hamano2-13/+60
"git am" that was recently reimplemented in C had a performance regression in "git am --abort" that goes back to the version before an attempted (and failed) patch application. * pt/am-builtin-abort-fix: am --skip/--abort: merge HEAD/ORIG_HEAD tree into index
2015-08-26Merge branch 'po/po-readme'Libravatar Junio C Hamano1-0/+19
* po/po-readme: po/README: Update directions for l10n contributors
2015-08-26Merge branch 'jv/send-email-selective-smtp-auth'Libravatar Junio C Hamano2-1/+38
"git send-email" learned a new option --smtp-auth to limit the SMTP AUTH mechanisms to be used to a subset of what the system library supports. * jv/send-email-selective-smtp-auth: send-email: provide whitelist of SMTP AUTH mechanisms
2015-08-26Merge branch 'ep/http-configure-ssl-version'Libravatar Junio C Hamano3-1/+56
A new configuration variable http.sslVersion can be used to specify what specific version of SSL/TLS to use to make a connection. * ep/http-configure-ssl-version: http: add support for specifying the SSL version
2015-08-26Merge branch 'ss/fix-config-fd-leak'Libravatar Junio C Hamano1-1/+4
* ss/fix-config-fd-leak: config: close config file handle in case of error
2015-08-26i18n: am: fix typo in description of -b optionLibravatar Jiang Xin1-1/+1
Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-26trailer: retitle a test and correct an in-comment messageLibravatar Christian Couder2-2/+3
Signed-off-by: Christian Couder <christian.couder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25Sync with maintLibravatar Junio C Hamano1-1/+1
* maint: pull: pass upload_pack only when it was given
2015-08-25Merge branch 'jk/guess-repo-name-regression-fix' into maintLibravatar Junio C Hamano2-1/+108
"git clone $URL" in recent releases of Git contains a regression in the code that invents a new repository name incorrectly based on the $URL. This has been corrected. * jk/guess-repo-name-regression-fix: clone: use computed length in guess_dir_name clone: add tests for output directory
2015-08-25Merge branch 'jk/test-with-x' into maintLibravatar Junio C Hamano1-2/+11
Running tests with the "-x" option to make them verbose had some unpleasant interactions with other features of the test suite. * jk/test-with-x: test-lib: disable trace when test is not verbose test-lib: turn off "-x" tracing during chain-lint check
2015-08-25Merge branch 'sb/check-return-from-read-ref' into maintLibravatar Junio C Hamano1-2/+6
* sb/check-return-from-read-ref: transport-helper: die on errors reading refs.
2015-08-25Merge branch 'mm/pull-upload-pack' into maintLibravatar Junio C Hamano1-1/+1
"git pull" in recent releases of Git has a regression in the code that allows custom path to the --upload-pack=<program>. This has been corrected. Note that this is irrelevant for 'master' with "git pull" rewritten in C. * mm/pull-upload-pack: pull: pass upload_pack only when it was given pull.sh: quote $upload_pack when passing it to git-fetch
2015-08-25pull: pass upload_pack only when it was givenLibravatar Junio C Hamano1-1/+1
The upload_pack shell variable is initialized to an empty string, so conditional expansion with ${upload_pack+"$upload_pack"} would not work very well. You need a colon there. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25Fifth batch for 2.6Libravatar Junio C Hamano1-0/+33
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25Merge branch 'cb/open-noatime-clear-errno'Libravatar Junio C Hamano1-1/+4
When trying to see that an object does not exist, a state errno leaked from our "first try to open a packfile with O_NOATIME and then if it fails retry without it" logic on a system that refuses O_NOATIME. This confused us and caused us to die, saying that the packfile is unreadable, when we should have just reported that the object does not exist in that packfile to the caller. * cb/open-noatime-clear-errno: git_open_noatime: return with errno=0 on success
2015-08-25Merge branch 'mh/tempfile'Libravatar Junio C Hamano18-630/+969
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
2015-08-25Merge branch 'pt/am-builtin-options'Libravatar Junio C Hamano3-10/+166
After "git am --opt1" stops, running "git am --opt2" pays attention to "--opt2" only for the patch that caused the original invocation to stop. * pt/am-builtin-options: am: let --signoff override --no-signoff am: let command-line options override saved options test_terminal: redirect child process' stdin to a pty
2015-08-25Merge branch 'dt/refs-pseudo'Libravatar Junio C Hamano5-56/+163
To prepare for allowing a different "ref" backend to be plugged in to the system, update_ref()/delete_ref() have been taught about ref-like things like MERGE_HEAD that are per-worktree (they will always be written to the filesystem inside $GIT_DIR). * dt/refs-pseudo: pseudoref: check return values from read_ref() sequencer: replace write_cherry_pick_head with update_ref bisect: use update_ref pseudorefs: create and use pseudoref update and delete functions refs: add ref_type function refs: introduce pseudoref and per-worktree ref concepts
2015-08-25Merge branch 'dt/notes-multiple'Libravatar Junio C Hamano4-12/+120
When linked worktree is used, simultaneous "notes merge" instances for the same ref in refs/notes/* are prevented from stomping on each other. * dt/notes-multiple: notes: handle multiple worktrees worktrees: add find_shared_symref
2015-08-25Merge branch 'nd/dwim-wildcards-as-pathspecs'Libravatar Junio C Hamano1-1/+1
Test updates for Windows. * nd/dwim-wildcards-as-pathspecs: t2019: skip test requiring '*' in a file name non Windows
2015-08-25Merge branch 'jk/long-error-messages'Libravatar Junio C Hamano3-29/+21
The codepath to produce error messages had a hard-coded limit to the size of the message, primarily to avoid memory allocation while calling die(). * jk/long-error-messages: vreportf: avoid intermediate buffer vreportf: report to arbitrary filehandles
2015-08-25Merge branch 'ee/clean-remove-dirs'Libravatar Junio C Hamano1-1/+1
Test updates for Windows. * ee/clean-remove-dirs: t7300-clean: require POSIXPERM for chmod 0 test
2015-08-25Merge branch 'jh/strbuf-read-use-read-in-full'Libravatar Junio C Hamano1-5/+5
strbuf_read() used to have one extra iteration (and an unnecessary strbuf_grow() of 8kB), which was eliminated. * jh/strbuf-read-use-read-in-full: strbuf_read(): skip unnecessary strbuf_grow() at eof
2015-08-25builtin/log.c: minor reformatLibravatar Junio C Hamano1-4/+2
Two logical lines that were not overly long was split in the middle, which made them read worse. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25write_file(): drop caller-supplied LF from calls to create a one-liner fileLibravatar Junio C Hamano6-10/+10
All of the callsites covered by this change call write_file() or write_file_gently() to create a one-liner file. Drop the caller supplied LF and let these callees to append it as necessary. Signed-off-by: Junio C Hamano <gitster@pobox.com>