git/git.git
3 years agoMerge branch 'jn/vcs-svn-cleanup'
Junio C Hamano [Sun, 27 Aug 2017 05:55:06 +0000 (22:55 -0700)]
Merge branch 'jn/vcs-svn-cleanup'

Code clean-up.

* jn/vcs-svn-cleanup:
  vcs-svn: move remaining repo_tree functions to fast_export.h
  vcs-svn: remove repo_delete wrapper function
  vcs-svn: remove custom mode constants
  vcs-svn: remove more unused prototypes and declarations

3 years agoMerge branch 'bc/vcs-svn-cleanup'
Junio C Hamano [Sun, 27 Aug 2017 05:55:05 +0000 (22:55 -0700)]
Merge branch 'bc/vcs-svn-cleanup'

Code clean-up.

* bc/vcs-svn-cleanup:
  vcs-svn: rename repo functions to "svn_repo"
  vcs-svn: remove unused prototypes

3 years agoMerge branch 'tb/apply-with-crlf'
Junio C Hamano [Sun, 27 Aug 2017 05:55:05 +0000 (22:55 -0700)]
Merge branch 'tb/apply-with-crlf'

"git apply" that is used as a better "patch -p1" failed to apply a
taken from a file with CRLF line endings to a file with CRLF line
endings.  The root cause was because it misused convert_to_git()
that tried to do "safe-crlf" processing by looking at the index
entry at the same path, which is a nonsense---in that mode, "apply"
is not working on the data in (or derived from) the index at all.
This has been fixed.

* tb/apply-with-crlf:
  apply: file commited with CRLF should roundtrip diff and apply
  convert: add SAFE_CRLF_KEEP_CRLF

3 years agoMerge branch 'jt/stash-tests'
Junio C Hamano [Sun, 27 Aug 2017 05:55:04 +0000 (22:55 -0700)]
Merge branch 'jt/stash-tests'

Test update to improve coverage for "git stash" operations.

* jt/stash-tests:
  stash: add a test for stashing in a detached state
  stash: add a test for when apply fails during stash branch
  stash: add a test for stash create with no files

3 years agoMerge branch 'jk/trailers-parse'
Junio C Hamano [Sun, 27 Aug 2017 05:55:04 +0000 (22:55 -0700)]
Merge branch 'jk/trailers-parse'

"git interpret-trailers" has been taught a "--parse" and a few
other options to make it easier for scripts to grab existing
trailer lines from a commit log message.

* jk/trailers-parse:
  doc/interpret-trailers: fix "the this" typo
  pretty: support normalization options for %(trailers)
  t4205: refactor %(trailers) tests
  pretty: move trailer formatting to trailer.c
  interpret-trailers: add --parse convenience option
  interpret-trailers: add an option to unfold values
  interpret-trailers: add an option to show only existing trailers
  interpret-trailers: add an option to show only the trailers
  trailer: put process_trailers() options into a struct

3 years agoMerge branch 'pb/trailers-from-command-line'
Junio C Hamano [Sun, 27 Aug 2017 05:55:04 +0000 (22:55 -0700)]
Merge branch 'pb/trailers-from-command-line'

"git interpret-trailers" learned to take the trailer specifications
from the command line that overrides the configured values.

* pb/trailers-from-command-line:
  interpret-trailers: fix documentation typo
  interpret-trailers: add options for actions
  trailers: introduce struct new_trailer_item
  trailers: export action enums and corresponding lookup functions

3 years agoMerge branch 'jt/diff-color-move-fix'
Junio C Hamano [Sun, 27 Aug 2017 05:55:04 +0000 (22:55 -0700)]
Merge branch 'jt/diff-color-move-fix'

A handful of bugfixes and an improvement to "diff --color-moved".

* jt/diff-color-move-fix:
  diff: define block by number of alphanumeric chars
  diff: respect MIN_BLOCK_LENGTH for last block
  diff: avoid redundantly clearing a flag

3 years agoMerge branch 'sb/diff-color-move'
Junio C Hamano [Sun, 27 Aug 2017 05:55:03 +0000 (22:55 -0700)]
Merge branch 'sb/diff-color-move'

"git diff" has been taught to optionally paint new lines that are
the same as deleted lines elsewhere differently from genuinely new
lines.

* sb/diff-color-move: (25 commits)
  diff: document the new --color-moved setting
  diff.c: add dimming to moved line detection
  diff.c: color moved lines differently, plain mode
  diff.c: color moved lines differently
  diff.c: buffer all output if asked to
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP
  diff.c: convert word diffing to use emit_diff_symbol
  diff.c: convert show_stats to use emit_diff_symbol
  diff.c: convert emit_binary_diff_body to use emit_diff_symbol
  submodule.c: migrate diff output to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS}
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS[_PORCELAIN]
  diff.c: migrate emit_line_checked to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO
  ...

3 years agoThe fourth batch post 2.14
Junio C Hamano [Thu, 24 Aug 2017 17:37:44 +0000 (10:37 -0700)]
The fourth batch post 2.14

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'jk/doc-the-this'
Junio C Hamano [Thu, 24 Aug 2017 17:20:03 +0000 (10:20 -0700)]
Merge branch 'jk/doc-the-this'

Doc clean-up.

* jk/doc-the-this:
  doc: fix typo in sendemail.identity

3 years agoMerge branch 'rs/commit-h-single-parent-cleanup'
Junio C Hamano [Thu, 24 Aug 2017 17:20:03 +0000 (10:20 -0700)]
Merge branch 'rs/commit-h-single-parent-cleanup'

Code clean-up.

* rs/commit-h-single-parent-cleanup:
  commit: remove unused inline function single_parent()

3 years agoMerge branch 'jc/simplify-progress'
Junio C Hamano [Thu, 24 Aug 2017 17:20:02 +0000 (10:20 -0700)]
Merge branch 'jc/simplify-progress'

The API to start showing progress meter after a short delay has
been simplified.

* jc/simplify-progress:
  progress: simplify "delayed" progress API

3 years agoMerge branch 'tc/curl-with-backports'
Junio C Hamano [Thu, 24 Aug 2017 17:20:02 +0000 (10:20 -0700)]
Merge branch 'tc/curl-with-backports'

Updates to the HTTP layer we made recently unconditionally used
features of libCurl without checking the existence of them, causing
compilation errors, which has been fixed.  Also migrate the code to
check feature macros, not version numbers, to cope better with
libCurl that vendor ships with backported features.

* tc/curl-with-backports:
  http: use a feature check to enable GSSAPI delegation control
  http: fix handling of missing CURLPROTO_*

3 years agoMerge branch 'cc/subprocess-handshake-missing-capabilities'
Junio C Hamano [Thu, 24 Aug 2017 17:20:02 +0000 (10:20 -0700)]
Merge branch 'cc/subprocess-handshake-missing-capabilities'

When handshake with a subprocess filter notices that the process
asked for an unknown capability, Git did not report what program
the offending subprocess was running.  This has been corrected.

* cc/subprocess-handshake-missing-capabilities:
  sub-process: print the cmd when a capability is unsupported

3 years agoMerge branch 'rs/object-id'
Junio C Hamano [Thu, 24 Aug 2017 17:20:02 +0000 (10:20 -0700)]
Merge branch 'rs/object-id'

Conversion from uchar[20] to struct object_id continues.

* rs/object-id:
  tree-walk: convert fill_tree_descriptor() to object_id

3 years agoMerge branch 'lg/merge-signoff'
Junio C Hamano [Thu, 24 Aug 2017 17:20:01 +0000 (10:20 -0700)]
Merge branch 'lg/merge-signoff'

"git merge" learned a "--signoff" option to add the Signed-off-by:
trailer with the committer's name.

* lg/merge-signoff:
  merge: add a --signoff flag

3 years agoSync with maint
Junio C Hamano [Wed, 23 Aug 2017 21:36:38 +0000 (14:36 -0700)]
Sync with maint

* maint:
  Prepare for 2.14.2

3 years agoPrepare for 2.14.2
Junio C Hamano [Wed, 23 Aug 2017 21:36:03 +0000 (14:36 -0700)]
Prepare for 2.14.2

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'jt/t1450-fsck-corrupt-packfile' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:52 +0000 (14:33 -0700)]
Merge branch 'jt/t1450-fsck-corrupt-packfile' into maint

A test update.

* jt/t1450-fsck-corrupt-packfile:
  tests: ensure fsck fails on corrupt packfiles

3 years agoMerge branch 'jb/t8008-cleanup' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:52 +0000 (14:33 -0700)]
Merge branch 'jb/t8008-cleanup' into maint

Code clean-up.

* jb/t8008-cleanup:
  t8008: rely on rev-parse'd HEAD instead of sha1 value

3 years agoMerge branch 'jt/subprocess-handshake' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:52 +0000 (14:33 -0700)]
Merge branch 'jt/subprocess-handshake' into maint

Code cleanup.

* jt/subprocess-handshake:
  sub-process: refactor handshake to common function
  Documentation: migrate sub-process docs to header
  convert: add "status=delayed" to filter process protocol
  convert: refactor capabilities negotiation
  convert: move multiple file filter error handling to separate function
  convert: put the flags field before the flag itself for consistent style
  t0021: write "OUT <size>" only on success
  t0021: make debug log file name configurable
  t0021: keep filter log files on comparison

3 years agoMerge branch 'dc/fmt-merge-msg-microcleanup' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:52 +0000 (14:33 -0700)]
Merge branch 'dc/fmt-merge-msg-microcleanup' into maint

Code cleanup.

* dc/fmt-merge-msg-microcleanup:
  fmt-merge-msg: fix coding style

3 years agoMerge branch 'ah/doc-wserrorhighlight' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:51 +0000 (14:33 -0700)]
Merge branch 'ah/doc-wserrorhighlight' into maint

Doc update.

* ah/doc-wserrorhighlight:
  doc: add missing values "none" and "default" for diff.wsErrorHighlight

3 years agoMerge branch 'cc/ref-is-hidden-microcleanup' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:50 +0000 (14:33 -0700)]
Merge branch 'cc/ref-is-hidden-microcleanup' into maint

Code cleanup.

* cc/ref-is-hidden-microcleanup:
  refs: use skip_prefix() in ref_is_hidden()

3 years agoMerge branch 'js/run-process-parallel-api-fix' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:49 +0000 (14:33 -0700)]
Merge branch 'js/run-process-parallel-api-fix' into maint

API fix.

* js/run-process-parallel-api-fix:
  run_processes_parallel: change confusing task_cb convention

3 years agoMerge branch 'rs/pack-objects-pbase-cleanup' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:48 +0000 (14:33 -0700)]
Merge branch 'rs/pack-objects-pbase-cleanup' into maint

Code clean-up.

* rs/pack-objects-pbase-cleanup:
  pack-objects: remove unnecessary NULL check

3 years agoMerge branch 'jt/fsck-code-cleanup' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:48 +0000 (14:33 -0700)]
Merge branch 'jt/fsck-code-cleanup' into maint

Code clean-up.

* jt/fsck-code-cleanup:
  fsck: cleanup unused variable
  object: remove "used" field from struct object
  fsck: remove redundant parse_tree() invocation

3 years agoMerge branch 'rs/stat-data-unaligned-reads-fix' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:47 +0000 (14:33 -0700)]
Merge branch 'rs/stat-data-unaligned-reads-fix' into maint

Code clean-up.

* rs/stat-data-unaligned-reads-fix:
  dir: support platforms that require aligned reads

3 years agoMerge branch 'rs/move-array' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:46 +0000 (14:33 -0700)]
Merge branch 'rs/move-array' into maint

Code clean-up.

* rs/move-array:
  ls-files: don't try to prune an empty index
  apply: use COPY_ARRAY and MOVE_ARRAY in update_image()
  use MOVE_ARRAY
  add MOVE_ARRAY

3 years agoMerge branch 'rs/bswap-ubsan-fix' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:46 +0000 (14:33 -0700)]
Merge branch 'rs/bswap-ubsan-fix' into maint

Code clean-up.

* rs/bswap-ubsan-fix:
  bswap: convert get_be16, get_be32 and put_be32 to inline functions
  bswap: convert to unsigned before shifting in get_be32

3 years agoMerge branch 'dl/credential-cache-socket-in-xdg-cache' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:45 +0000 (14:33 -0700)]
Merge branch 'dl/credential-cache-socket-in-xdg-cache' into maint

A recently added test for the "credential-cache" helper revealed
that EOF detection done around the time the connection to the cache
daemon is torn down were flaky.  This was fixed by reacting to
ECONNRESET and behaving as if we got an EOF.

* dl/credential-cache-socket-in-xdg-cache:
  credential-cache: interpret an ECONNRESET as an EOF

3 years agoMerge branch 'hb/gitweb-project-list' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:44 +0000 (14:33 -0700)]
Merge branch 'hb/gitweb-project-list' into maint

When a directory is not readable, "gitweb" fails to build the
project list.  Work this around by skipping such a directory.

It might end up hiding a problem under the rug and a better
solution might be to loudly complain to the administrator pointing
out the problematic directory, but this will at least make it
"work".

* hb/gitweb-project-list:
  gitweb: skip unreadable subdirectories

3 years agoMerge branch 'ks/commit-abort-on-empty-message-fix' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:44 +0000 (14:33 -0700)]
Merge branch 'ks/commit-abort-on-empty-message-fix' into maint

"git commit" when seeing an totally empty message said "you did not
edit the message", which is clearly wrong.  The message has been
corrected.

* ks/commit-abort-on-empty-message-fix:
  commit: check for empty message before the check for untouched template

3 years agoMerge branch 'jk/reflog-walk' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:43 +0000 (14:33 -0700)]
Merge branch 'jk/reflog-walk' into maint

Numerous bugs in walking of reflogs via "log -g" and friends have
been fixed.

* jk/reflog-walk:
  reflog-walk: apply --since/--until to reflog dates
  reflog-walk: stop using fake parents
  rev-list: check reflog_info before showing usage
  get_revision_1(): replace do-while with an early return
  log: do not free parents when walking reflog
  log: clarify comment about reflog cycles
  revision: disallow reflog walking with revs->limited
  t1414: document some reflog-walk oddities

3 years agoMerge branch 'jc/http-sslkey-and-ssl-cert-are-paths' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:43 +0000 (14:33 -0700)]
Merge branch 'jc/http-sslkey-and-ssl-cert-are-paths' into maint

The http.{sslkey,sslCert} configuration variables are to be
interpreted as a pathname that honors "~[username]/" prefix, but
weren't, which has been fixed.

* jc/http-sslkey-and-ssl-cert-are-paths:
  http.c: http.sslcert and http.sslkey are both pathnames

3 years agoMerge branch 'jk/ref-filter-colors' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:42 +0000 (14:33 -0700)]
Merge branch 'jk/ref-filter-colors' into maint

"%C(color name)" in the pretty print format always produced ANSI
color escape codes, which was an early design mistake.  They now
honor the configuration (e.g. "color.ui = never") and also tty-ness
of the output medium.

* jk/ref-filter-colors:
  ref-filter: consult want_color() before emitting colors
  pretty: respect color settings for %C placeholders
  rev-list: pass diffopt->use_colors through to pretty-print
  for-each-ref: load config earlier
  color: check color.ui in git_default_config()
  ref-filter: pass ref_format struct to atom parsers
  ref-filter: factor out the parsing of sorting atoms
  ref-filter: make parse_ref_filter_atom a private function
  ref-filter: provide a function for parsing sort options
  ref-filter: move need_color_reset_at_eol into ref_format
  ref-filter: abstract ref format into its own struct
  ref-filter: simplify automatic color reset
  t: use test_decode_color rather than literal ANSI codes
  docs/for-each-ref: update pointer to color syntax
  check return value of verify_ref_format()

3 years agoMerge branch 'js/git-gui-msgfmt-on-windows' into maint
Junio C Hamano [Wed, 23 Aug 2017 21:33:42 +0000 (14:33 -0700)]
Merge branch 'js/git-gui-msgfmt-on-windows' into maint

Because recent Git for Windows do come with a real msgfmt, the
build procedure for git-gui has been updated to use it instead of a
hand-rolled substitute.

* js/git-gui-msgfmt-on-windows:
  git-gui (MinGW): make use of MSys2's msgfmt
  git gui: allow for a long recentrepo list
  git gui: de-dup selected repo from recentrepo history
  git gui: cope with duplicates in _get_recentrepo
  git-gui: remove duplicate entries from .gitconfig's gui.recentrepo

3 years agoThe third batch post 2.14
Junio C Hamano [Wed, 23 Aug 2017 21:16:00 +0000 (14:16 -0700)]
The third batch post 2.14

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'mg/format-ref-doc-fix'
Junio C Hamano [Wed, 23 Aug 2017 21:13:14 +0000 (14:13 -0700)]
Merge branch 'mg/format-ref-doc-fix'

Doc fix.

* mg/format-ref-doc-fix:
  Documentation/git-for-each-ref: clarify peeling of tags for --format
  Documentation: use proper wording for ref format strings

3 years agoMerge branch 'sb/submodule-parallel-update'
Junio C Hamano [Wed, 23 Aug 2017 21:13:14 +0000 (14:13 -0700)]
Merge branch 'sb/submodule-parallel-update'

Code clean-up.

* sb/submodule-parallel-update:
  submodule.sh: remove unused variable

3 years agoMerge branch 'jc/diff-sane-truncate-no-more'
Junio C Hamano [Wed, 23 Aug 2017 21:13:13 +0000 (14:13 -0700)]
Merge branch 'jc/diff-sane-truncate-no-more'

Code clean-up.

* jc/diff-sane-truncate-no-more:
  diff: retire sane_truncate_fn

3 years agoMerge branch 'hv/t5526-andand-chain-fix'
Junio C Hamano [Wed, 23 Aug 2017 21:13:13 +0000 (14:13 -0700)]
Merge branch 'hv/t5526-andand-chain-fix'

Test fix.

* hv/t5526-andand-chain-fix:
  t5526: fix some broken && chains

3 years agoMerge branch 'as/grep-quiet-no-match-exit-code-fix'
Junio C Hamano [Wed, 23 Aug 2017 21:13:12 +0000 (14:13 -0700)]
Merge branch 'as/grep-quiet-no-match-exit-code-fix'

"git grep -L" and "git grep --quiet -L" reported different exit
codes; this has been corrected.

* as/grep-quiet-no-match-exit-code-fix:
  git-grep: correct exit code with --quiet and -L

3 years agoMerge branch 'kw/commit-keep-index-when-pre-commit-is-not-run'
Junio C Hamano [Wed, 23 Aug 2017 21:13:11 +0000 (14:13 -0700)]
Merge branch 'kw/commit-keep-index-when-pre-commit-is-not-run'

"git commit" used to discard the index and re-read from the filesystem
just in case the pre-commit hook has updated it in the middle; this
has been optimized out when we know we do not run the pre-commit hook.

* kw/commit-keep-index-when-pre-commit-is-not-run:
  commit: skip discarding the index if there is no pre-commit hook

3 years agoMerge branch 'sb/sha1-file-cleanup'
Junio C Hamano [Wed, 23 Aug 2017 21:13:10 +0000 (14:13 -0700)]
Merge branch 'sb/sha1-file-cleanup'

Code clean-up.

* sb/sha1-file-cleanup:
  sha1_file: make read_info_alternates static

3 years agoMerge branch 'rs/t1002-do-not-use-sum'
Junio C Hamano [Wed, 23 Aug 2017 21:13:09 +0000 (14:13 -0700)]
Merge branch 'rs/t1002-do-not-use-sum'

Test simplification.

* rs/t1002-do-not-use-sum:
  t1002: stop using sum(1)

3 years agoMerge branch 'kd/stash-with-bash-4.4'
Junio C Hamano [Wed, 23 Aug 2017 21:13:08 +0000 (14:13 -0700)]
Merge branch 'kd/stash-with-bash-4.4'

bash 4.4 or newer gave a warning on NUL byte in command
substitution done in "git stash"; this has been squelched.

* kd/stash-with-bash-4.4:
  stash: prevent warning about null bytes in input

3 years agoMerge branch 'ah/doc-empty-string-is-false'
Junio C Hamano [Wed, 23 Aug 2017 21:13:08 +0000 (14:13 -0700)]
Merge branch 'ah/doc-empty-string-is-false'

Doc update.

* ah/doc-empty-string-is-false:
  doc: clarify "config --bool" behaviour with empty string

3 years agoMerge branch 'kw/rebase-progress'
Junio C Hamano [Wed, 23 Aug 2017 21:13:07 +0000 (14:13 -0700)]
Merge branch 'kw/rebase-progress'

"git rebase", especially when it is run by mistake and ends up
trying to replay many changes, spent long time in silence.  The
command has been taught to show progress report when it spends
long time preparing these many changes to replay (which would give
the user a chance to abort with ^C).

* kw/rebase-progress:
  rebase: turn on progress option by default for format-patch
  format-patch: have progress option while generating patches

3 years agoMerge branch 'ks/prepare-commit-msg-sample-fix'
Junio C Hamano [Wed, 23 Aug 2017 21:13:07 +0000 (14:13 -0700)]
Merge branch 'ks/prepare-commit-msg-sample-fix'

An "oops" fix to a topic that is already in 'master'.

* ks/prepare-commit-msg-sample-fix:
  hook: use correct logical variable

3 years agoMerge branch 'nm/stash-untracked'
Junio C Hamano [Wed, 23 Aug 2017 21:13:07 +0000 (14:13 -0700)]
Merge branch 'nm/stash-untracked'

"git stash -u" used the contents of the committed version of the
".gitignore" file to decide which paths are ignored, even when the
file has local changes.  The command has been taught to instead use
the locally modified contents.

* nm/stash-untracked:
  stash: clean untracked files before reset

3 years agoMerge branch 'jt/sha1-file-cleanup'
Junio C Hamano [Wed, 23 Aug 2017 21:13:07 +0000 (14:13 -0700)]
Merge branch 'jt/sha1-file-cleanup'

Preparatory code clean-up.

* jt/sha1-file-cleanup:
  sha1_file: remove read_packed_sha1()
  sha1_file: set whence in storage-specific info fn

3 years agovcs-svn: move remaining repo_tree functions to fast_export.h
Jonathan Nieder [Wed, 23 Aug 2017 00:04:47 +0000 (17:04 -0700)]
vcs-svn: move remaining repo_tree functions to fast_export.h

These used to be for manipulating the in-memory repo_tree structure,
but nowadays they are convenience wrappers to handle a few git-vs-svn
mismatches:

 1. Git does not track empty directories but Subversion does.  When
    looking up a path in git that Subversion thinks exists and finding
    nothing, we can safely assume that the path represents a
    directory.  This is needed when a later Subversion revision
    modifies that directory.

 2. Subversion allows deleting a file by copying.  In Git fast-import
    we have to handle that more explicitly as a deletion.

These are details of the tool's interaction with git fast-import.
Move them to fast_export.c, where other such details are handled.

This way the function names do not start with a repo_ prefix that
would clash with the repository object introduced in
v2.14.0-rc0~38^2~16 (repository: introduce the repository object,
2017-06-22) or an svn_ prefix that would clash with libsvn (in case
someone wants to link this code with libsvn some day).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agovcs-svn: remove repo_delete wrapper function
Jonathan Nieder [Wed, 23 Aug 2017 00:02:15 +0000 (17:02 -0700)]
vcs-svn: remove repo_delete wrapper function

Since v1.7.10-rc0~118^2~4^2~4^2~3 (vcs-svn: pass paths through to
fast-import, 2010-12-13) this is an alias for fast_export_delete.
Remove the unnecessary layer of indirection.

No functional change intended.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agovcs-svn: remove custom mode constants
Jonathan Nieder [Wed, 23 Aug 2017 00:01:34 +0000 (17:01 -0700)]
vcs-svn: remove custom mode constants

In the rest of Git, these modes are spelled as S_IFDIR,
S_IFREG | 0644, S_IFREG | 0755, and S_IFLNK.  Use the same constants
in svn-fe for simplicity and consistency.

No functional change intended.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agovcs-svn: remove more unused prototypes and declarations
Jonathan Nieder [Wed, 23 Aug 2017 00:00:57 +0000 (17:00 -0700)]
vcs-svn: remove more unused prototypes and declarations

I forgot to remove these in v1.7.10-rc0~118^2~4^2~5^2~4 (vcs-svn:
eliminate repo_tree structure, 2010-12-10).

This finishes what was started in commit 36f63b50 (vcs-svn: remove
unused prototypes, 2017-08-21).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoThe second batch post 2.14
Junio C Hamano [Tue, 22 Aug 2017 17:33:58 +0000 (10:33 -0700)]
The second batch post 2.14

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'mh/packed-ref-store'
Junio C Hamano [Tue, 22 Aug 2017 17:29:16 +0000 (10:29 -0700)]
Merge branch 'mh/packed-ref-store'

The "ref-store" code reorganization continues.

* mh/packed-ref-store: (32 commits)
  files-backend: cheapen refname_available check when locking refs
  packed_ref_store: handle a packed-refs file that is a symlink
  read_packed_refs(): die if `packed-refs` contains bogus data
  t3210: add some tests of bogus packed-refs file contents
  repack_without_refs(): don't lock or unlock the packed refs
  commit_packed_refs(): remove call to `packed_refs_unlock()`
  clear_packed_ref_cache(): don't protest if the lock is held
  packed_refs_unlock(), packed_refs_is_locked(): new functions
  packed_refs_lock(): report errors via a `struct strbuf *err`
  packed_refs_lock(): function renamed from lock_packed_refs()
  commit_packed_refs(): use a staging file separate from the lockfile
  commit_packed_refs(): report errors rather than dying
  packed_ref_store: make class into a subclass of `ref_store`
  packed-backend: new module for handling packed references
  packed_read_raw_ref(): new function, replacing `resolve_packed_ref()`
  packed_ref_store: support iteration
  packed_peel_ref(): new function, extracted from `files_peel_ref()`
  repack_without_refs(): take a `packed_ref_store *` parameter
  get_packed_ref(): take a `packed_ref_store *` parameter
  rollback_packed_refs(): take a `packed_ref_store *` parameter
  ...

3 years agoMerge branch 'sb/retire-t1200'
Junio C Hamano [Tue, 22 Aug 2017 17:29:16 +0000 (10:29 -0700)]
Merge branch 'sb/retire-t1200'

A test script that outlived its usefulness has been removed.

* sb/retire-t1200:
  t1200: remove t1200-tutorial.sh

3 years agoMerge branch 'rs/win32-syslog-leakfix'
Junio C Hamano [Tue, 22 Aug 2017 17:29:16 +0000 (10:29 -0700)]
Merge branch 'rs/win32-syslog-leakfix'

Memory leak in an error codepath has been plugged.

* rs/win32-syslog-leakfix:
  win32: plug memory leak on realloc() failure in syslog()

3 years agoMerge branch 'rs/unpack-entry-leakfix'
Junio C Hamano [Tue, 22 Aug 2017 17:29:15 +0000 (10:29 -0700)]
Merge branch 'rs/unpack-entry-leakfix'

Memory leak in an error codepath has been plugged.

* rs/unpack-entry-leakfix:
  sha1_file: release delta_stack on error in unpack_entry()

3 years agoMerge branch 'rs/strbuf-getwholeline-fix'
Junio C Hamano [Tue, 22 Aug 2017 17:29:15 +0000 (10:29 -0700)]
Merge branch 'rs/strbuf-getwholeline-fix'

A helper function to read a single whole line into strbuf
mistakenly triggered OOM error at EOF under certain conditions,
which has been fixed.

* rs/strbuf-getwholeline-fix:
  strbuf: clear errno before calling getdelim(3)

3 years agoMerge branch 'rs/merge-microcleanup'
Junio C Hamano [Tue, 22 Aug 2017 17:29:14 +0000 (10:29 -0700)]
Merge branch 'rs/merge-microcleanup'

Code clean-up.

* rs/merge-microcleanup:
  merge: use skip_prefix()

3 years agoMerge branch 'rs/fsck-obj-leakfix'
Junio C Hamano [Tue, 22 Aug 2017 17:29:13 +0000 (10:29 -0700)]
Merge branch 'rs/fsck-obj-leakfix'

Memory leak in an error codepath has been plugged.

* rs/fsck-obj-leakfix:
  fsck: free buffers on error in fsck_obj()

3 years agoMerge branch 'rs/t4062-obsd'
Junio C Hamano [Tue, 22 Aug 2017 17:29:13 +0000 (10:29 -0700)]
Merge branch 'rs/t4062-obsd'

Test portability fix.

* rs/t4062-obsd:
  t4062: use less than 256 repetitions in regex

3 years agoMerge branch 'rs/find-pack-entry-bisection'
Junio C Hamano [Tue, 22 Aug 2017 17:29:11 +0000 (10:29 -0700)]
Merge branch 'rs/find-pack-entry-bisection'

Code clean-up.

* rs/find-pack-entry-bisection:
  sha1_file: avoid comparison if no packed hash matches the first byte

3 years agoMerge branch 'rs/apply-lose-prefix-length'
Junio C Hamano [Tue, 22 Aug 2017 17:29:10 +0000 (10:29 -0700)]
Merge branch 'rs/apply-lose-prefix-length'

Code clean-up.

* rs/apply-lose-prefix-length:
  apply: remove prefix_length member from apply_state

3 years agoMerge branch 'rj/add-chmod-error-message'
Junio C Hamano [Tue, 22 Aug 2017 17:29:10 +0000 (10:29 -0700)]
Merge branch 'rj/add-chmod-error-message'

Message fix.

* rj/add-chmod-error-message:
  builtin/add: add detail to a 'cannot chmod' error message

3 years agoMerge branch 'jk/hashcmp-memcmp'
Junio C Hamano [Tue, 22 Aug 2017 17:29:09 +0000 (10:29 -0700)]
Merge branch 'jk/hashcmp-memcmp'

Code clean-up.

* jk/hashcmp-memcmp:
  hashcmp: use memcmp instead of open-coded loop

3 years agoMerge branch 'jk/drop-sha1-entry-pos'
Junio C Hamano [Tue, 22 Aug 2017 17:29:08 +0000 (10:29 -0700)]
Merge branch 'jk/drop-sha1-entry-pos'

Code clean-up.

* jk/drop-sha1-entry-pos:
  sha1_file: drop experimental GIT_USE_LOOKUP search

3 years agoMerge branch 'ur/svn-local-zone'
Junio C Hamano [Tue, 22 Aug 2017 17:29:07 +0000 (10:29 -0700)]
Merge branch 'ur/svn-local-zone'

"git svn" used with "--localtime" option did not compute the tz
offset for the timestamp in question and instead always used the
current time, which has been corrected.

* ur/svn-local-zone:
  git svn fetch: Create correct commit timestamp when using --localtime

3 years agoMerge branch 'pw/am-signoff'
Junio C Hamano [Tue, 22 Aug 2017 17:29:07 +0000 (10:29 -0700)]
Merge branch 'pw/am-signoff'

"git am -s" has been taught that some input may end with a trailer
block that is not Signed-off-by: and it should refrain from adding
an extra blank line before adding a new sign-off in such a case.

* pw/am-signoff:
  am: fix signoff when other trailers are present

3 years agoMerge branch 'rs/t3700-clean-leftover'
Junio C Hamano [Tue, 22 Aug 2017 17:29:07 +0000 (10:29 -0700)]
Merge branch 'rs/t3700-clean-leftover'

A test fix.

* rs/t3700-clean-leftover:
  t3700: fix broken test under !POSIXPERM

3 years agoMerge branch 'jc/perl-git-comment-typofix'
Junio C Hamano [Tue, 22 Aug 2017 17:29:06 +0000 (10:29 -0700)]
Merge branch 'jc/perl-git-comment-typofix'

A comment fix.

* jc/perl-git-comment-typofix:
  perl/Git.pm: typofix in a comment

3 years agoMerge branch 'rs/in-obsd-basename-dirname-take-const'
Junio C Hamano [Tue, 22 Aug 2017 17:29:05 +0000 (10:29 -0700)]
Merge branch 'rs/in-obsd-basename-dirname-take-const'

Portability fix.

* rs/in-obsd-basename-dirname-take-const:
  test-path-utils: handle const parameter of basename and dirname

3 years agoMerge branch 'rs/obsd-getcwd-workaround'
Junio C Hamano [Tue, 22 Aug 2017 17:29:04 +0000 (10:29 -0700)]
Merge branch 'rs/obsd-getcwd-workaround'

Test portability fix for BSDs.

* rs/obsd-getcwd-workaround:
  t0001: skip test with restrictive permissions if getpwd(3) respects them

3 years agoMerge branch 'mf/no-dashed-subcommands'
Junio C Hamano [Tue, 22 Aug 2017 17:29:03 +0000 (10:29 -0700)]
Merge branch 'mf/no-dashed-subcommands'

Code clean-up.

* mf/no-dashed-subcommands:
  scripts: use "git foo" not "git-foo"

3 years agoMerge branch 'ma/parse-maybe-bool'
Junio C Hamano [Tue, 22 Aug 2017 17:29:03 +0000 (10:29 -0700)]
Merge branch 'ma/parse-maybe-bool'

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=

3 years agoMerge branch 'ab/ref-filter-no-contains'
Junio C Hamano [Tue, 22 Aug 2017 17:29:02 +0000 (10:29 -0700)]
Merge branch 'ab/ref-filter-no-contains'

A test fix.

* ab/ref-filter-no-contains:
  tests: don't give unportable ">" to "test" built-in, use -gt

3 years agoMerge branch 'bw/clone-recursive-quiet'
Junio C Hamano [Tue, 22 Aug 2017 17:29:01 +0000 (10:29 -0700)]
Merge branch 'bw/clone-recursive-quiet'

"git clone --recurse-submodules --quiet" did not pass the quiet
option down to submodules.

* bw/clone-recursive-quiet:
  clone: teach recursive clones to respect -q

3 years agoMerge branch 'bw/grep-recurse-submodules'
Junio C Hamano [Tue, 22 Aug 2017 17:29:01 +0000 (10:29 -0700)]
Merge branch 'bw/grep-recurse-submodules'

"git grep --recurse-submodules" has been reworked to give a more
consistent output across submodule boundary (and do its thing
without having to fork a separate process).

* bw/grep-recurse-submodules:
  grep: recurse in-process using 'struct repository'
  submodule: merge repo_read_gitmodules and gitmodules_config
  submodule: check for unmerged .gitmodules outside of config parsing
  submodule: check for unstaged .gitmodules outside of config parsing
  submodule: remove fetch.recursesubmodules from submodule-config parsing
  submodule: remove submodule.fetchjobs from submodule-config parsing
  config: add config_from_gitmodules
  cache.h: add GITMODULES_FILE macro
  repository: have the_repository use the_index
  repo_read_index: don't discard the index

3 years agoMerge branch 'pw/sequence-rerere-autoupdate'
Junio C Hamano [Tue, 22 Aug 2017 17:29:00 +0000 (10:29 -0700)]
Merge branch 'pw/sequence-rerere-autoupdate'

Commands like "git rebase" accepted the --rerere-autoupdate option
from the command line, but did not always use it.  This has been
fixed.

* pw/sequence-rerere-autoupdate:
  cherry-pick/revert: reject --rerere-autoupdate when continuing
  cherry-pick/revert: remember --rerere-autoupdate
  t3504: use test_commit
  rebase -i: honor --rerere-autoupdate
  rebase: honor --rerere-autoupdate
  am: remember --rerere-autoupdate setting

3 years agoMerge branch 'bw/push-options-recursively-to-submodules'
Junio C Hamano [Tue, 22 Aug 2017 17:29:00 +0000 (10:29 -0700)]
Merge branch 'bw/push-options-recursively-to-submodules'

"git push --recurse-submodules $there HEAD:$target" was not
propagated down to the submodules, but now it is.

* bw/push-options-recursively-to-submodules:
  submodule--helper: teach push-check to handle HEAD

3 years agovcs-svn: rename repo functions to "svn_repo"
brian m. carlson [Mon, 21 Aug 2017 00:00:18 +0000 (00:00 +0000)]
vcs-svn: rename repo functions to "svn_repo"

There were several functions in the Subversion code that started with
"repo_".  This namespace is also used by the Git struct repository code.
Rename these functions to start with "svn_repo" to avoid any future
conflicts.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agovcs-svn: remove unused prototypes
brian m. carlson [Mon, 21 Aug 2017 00:00:17 +0000 (00:00 +0000)]
vcs-svn: remove unused prototypes

The Subversion code had prototypes for several functions which were not
ever defined or used.  These functions all had names starting with
"repo_", some of which conflict with those in repository.h.  To avoid
the conflict, remove those unused prototypes.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agodoc: fix typo in sendemail.identity
Jeff King [Sun, 20 Aug 2017 09:46:57 +0000 (05:46 -0400)]
doc: fix typo in sendemail.identity

Saying "the this" is an obvious typo. But while we're here,
let's polish the English on the second half of the sentence,
too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agodoc/interpret-trailers: fix "the this" typo
Martin Ågren [Sun, 20 Aug 2017 09:40:09 +0000 (05:40 -0400)]
doc/interpret-trailers: fix "the this" typo

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agostash: add a test for stashing in a detached state
Joel Teichroeb [Sat, 19 Aug 2017 20:13:26 +0000 (13:13 -0700)]
stash: add a test for stashing in a detached state

All that we are really testing here is that the message is
correct when we are not on any branch. All other functionality is
already tested elsewhere.

Signed-off-by: Joel Teichroeb <joel@teichroeb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agostash: add a test for when apply fails during stash branch
Joel Teichroeb [Sat, 19 Aug 2017 20:13:25 +0000 (13:13 -0700)]
stash: add a test for when apply fails during stash branch

If the return value of merge recursive is not checked, the stash could end
up being dropped even though it was not applied properly

Signed-off-by: Joel Teichroeb <joel@teichroeb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agostash: add a test for stash create with no files
Joel Teichroeb [Sat, 19 Aug 2017 20:13:24 +0000 (13:13 -0700)]
stash: add a test for stash create with no files

Ensure the command suceeds and outputs nothing

Signed-off-by: Joel Teichroeb <joel@teichroeb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoprogress: simplify "delayed" progress API
Junio C Hamano [Sat, 19 Aug 2017 17:39:41 +0000 (10:39 -0700)]
progress: simplify "delayed" progress API

We used to expose the full power of the delayed progress API to the
callers, so that they can specify, not just the message to show and
expected total amount of work that is used to compute the percentage
of work performed so far, the percent-threshold parameter P and the
delay-seconds parameter N.  The progress meter starts to show at N
seconds into the operation only if we have not yet completed P per-cent
of the total work.

Most callers used either (0%, 2s) or (50%, 1s) as (P, N), but there
are oddballs that chose more random-looking values like 95%.

For a smoother workload, (50%, 1s) would allow us to start showing
the progress meter earlier than (0%, 2s), while keeping the chance
of not showing progress meter for long running operation the same as
the latter.  For a task that would take 2s or more to complete, it
is likely that less than half of it would complete within the first
second, if the workload is smooth.  But for a spiky workload whose
earlier part is easier, such a setting is likely to fail to show the
progress meter entirely and (0%, 2s) is more appropriate.

But that is merely a theory.  Realistically, it is of dubious value
to ask each codepath to carefully consider smoothness of their
workload and specify their own setting by passing two extra
parameters.  Let's simplify the API by dropping both parameters and
have everybody use (0%, 2s).

Oh, by the way, the percent-threshold parameter and the structure
member were consistently misspelled, which also is now fixed ;-)

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoapply: file commited with CRLF should roundtrip diff and apply
Torsten Bögershausen [Sat, 19 Aug 2017 11:28:01 +0000 (13:28 +0200)]
apply: file commited with CRLF should roundtrip diff and apply

When a file had been commited with CRLF but now .gitattributes say
"* text=auto" (or core.autocrlf is true), the following does not
roundtrip, `git apply` fails:

    printf "Added line\r\n" >>file &&
    git diff >patch &&
    git checkout -- . &&
    git apply patch

Before applying the patch, the file from working tree is converted
into the index format (clean filter, CRLF conversion, ...).  Here,
when commited with CRLF, the line endings should not be converted.

Note that `git apply --index` or `git apply --cache` doesn't call
convert_to_git() because the source material is already in index
format.

Analyze the patch if there is a) any context line with CRLF, or b)
if any line with CRLF is to be removed.  In this case the patch file
`patch` has mixed line endings, for a) it looks like this:

    diff --git a/one b/one
    index 533790e..c30dea8 100644
    --- a/one
    +++ b/one
    @@ -1 +1,2 @@
     a\r
    +b\r

And for b) it looks like this:

    diff --git a/one b/one
    index 533790e..485540d 100644
    --- a/one
    +++ b/one
    @@ -1 +1 @@
    -a\r
    +b\r

If `git apply` detects that the patch itself has CRLF, (look at the
line " a\r" or "-a\r" above), the new flag crlf_in_old is set in
"struct patch" and two things will happen:

    - read_old_data() will not convert CRLF into LF by calling
      convert_to_git(..., SAFE_CRLF_KEEP_CRLF);
    - The WS_CR_AT_EOL bit is set in the "white space rule",
      CRLF are no longer treated as white space.

While at there, make it clear that read_old_data() in apply.c knows
what it wants convert_to_git() to do with respect to CRLF.  In fact,
this codepath is about applying a patch to a file in the filesystem,
which may not exist in the index, or may exist but may not match
what is recorded in the index, or in the extreme case, we may not
even be in a Git repository.  If convert_to_git() peeked at the
index while doing its work, it *would* be a bug.

Pass NULL instead of &the_index to convert_to_git() to make sure we
catch future bugs to clarify this.

Update the test in t4124: split one test case into 3:

    - Detect the " a\r" line in the patch
    - Detect the "-a\r" line in the patch
    - Use LF in repo and CLRF in the worktree.

Reported-by: Anthony Sottile <asottile@umich.edu>
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agocommit: remove unused inline function single_parent()
René Scharfe [Sat, 19 Aug 2017 08:12:45 +0000 (10:12 +0200)]
commit: remove unused inline function single_parent()

53b2c823f6 (revision walker: mini clean-up) added the function in 2007,
but it was never used, so we should be able to get rid of it now.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoDocumentation/git-for-each-ref: clarify peeling of tags for --format
Michael J Gruber [Fri, 18 Aug 2017 14:51:23 +0000 (16:51 +0200)]
Documentation/git-for-each-ref: clarify peeling of tags for --format

`*` in format strings means peeling of tag objects so that object field
names refer to the object that the tag object points at, instead of the
tag object itself.

Currently, this is documented using grammar that is clearly inspired by
classical latin, though missing more than an article in order to be
classical english.

Try and straighten that explanation out a bit.

Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoDocumentation: use proper wording for ref format strings
Michael J Gruber [Fri, 18 Aug 2017 14:51:22 +0000 (16:51 +0200)]
Documentation: use proper wording for ref format strings

Various commands list refs and allow to use a format string for the
output that interpolates from the ref as well as the object it points
at (for-each-ref; branch and tag in list mode).

Currently, the documentation talks about interpolating from the object.
This is confusing because a ref points to an object but not vice versa,
so the object cannot possible know %(refname), for example. Thus, this is
wrong independent of refs being objects (one day, maybe) or not.

Change the wording to make this clearer (and distinguish it from formats
for the log family).

Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agogit-grep: correct exit code with --quiet and -L
Anthony Sottile [Fri, 18 Aug 2017 01:38:51 +0000 (18:38 -0700)]
git-grep: correct exit code with --quiet and -L

The handling of `status_only` no longer interferes with the handling of
`unmatch_name_only`.  `--quiet` no longer affects the exit code when using
`-L`/`--files-without-match`.

Signed-off-by: Anthony Sottile <asottile@umich.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agodiff: retire sane_truncate_fn
Junio C Hamano [Thu, 17 Aug 2017 17:27:28 +0000 (10:27 -0700)]
diff: retire sane_truncate_fn

Long time ago, 23707811 ("diff: do not chomp hunk-header in the
middle of a character", 2008-01-02) introduced sane_truncate_line()
helper function to trim the "function header" line that is shown at
the end of the hunk header line, in order to avoid chomping it in
the middle of a single UTF-8 character.  It also added a facility to
define a custom callback function to make it possible to extend it
to non UTF-8 encodings.

During the following 8 1/2 years, nobody found need for this custom
callback facility.

A custom callback function is a wrong design to use here anyway---if
your contents need support for non UTF-8 encoding, you shouldn't
have to write a custom function and recompile Git to plumb it in.  A
better approach would be to extend sane_truncate_line() function and
have a new member in emit_callback to conditionally trigger it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agofiles-backend: cheapen refname_available check when locking refs
Michael Haggerty [Thu, 17 Aug 2017 15:12:50 +0000 (17:12 +0200)]
files-backend: cheapen refname_available check when locking refs

When locking references in preparation for updating them, we need to
check that none of the newly added references D/F conflict with
existing references (e.g., we don't allow `refs/foo` to be added if
`refs/foo/bar` already exists, or vice versa).

Prior to 524a9fdb51 (refs_verify_refname_available(): use function in
more places, 2017-04-16), conflicts with existing loose references
were checked by looking directly in the filesystem, and then conflicts
with existing packed references were checked by running
`verify_refname_available_dir()` against the packed-refs cache.

But that commit changed the final check to call
`refs_verify_refname_available()` against the *whole* files ref-store,
including both loose and packed references, with the following
comment:

> This means that those callsites now check for conflicts with all
> references rather than just packed refs, but the performance cost
> shouldn't be significant (and will be regained later).

That comment turned out to be too sanguine. User s@kazlauskas.me
reported that fetches involving a very large number of references in
neighboring directories were slowed down by that change.

The problem is that when fetching, each reference is updated
individually, within its own reference transaction. This is done
because some reference updates might succeed even though others fail.
But every time a reference update transaction is finished,
`clear_loose_ref_cache()` is called. So when it is time to update the
next reference, part of the loose ref cache has to be repopulated for
the `refs_verify_refname_available()` call. If the references are all
in neighboring directories, then the cost of repopulating the
reference cache increases with the number of references, resulting in
O(N²) effort.

The comment above also claims that the performance cost "will be
regained later". The idea was that once the packed-refs were finished
being split out into a separate ref-store, we could limit the
`refs_verify_refname_available()` call to the packed references again.
That is what we do now.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agot5526: fix some broken && chains
Heiko Voigt [Thu, 17 Aug 2017 10:36:13 +0000 (12:36 +0200)]
t5526: fix some broken && chains

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agosubmodule.sh: remove unused variable
Stefan Beller [Wed, 16 Aug 2017 22:50:42 +0000 (15:50 -0700)]
submodule.sh: remove unused variable

This could have been part of 48308681b0 (git submodule update: have a
dedicated helper for cloning, 2016-02-29).

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>