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2016-09-19parse-options: add parse_opt_unknown_cb()Libravatar Michael Haggerty2-0/+13
Add a new callback function, parse_opt_unknown_cb(), which returns -2 to indicate that the corresponding option is unknown. This can be used to add "-h" documentation for an option that will be handled externally to parse_options(). Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-19diff: improve positioning of add/delete blocks in diffsLibravatar Michael Haggerty7-11/+546
Some groups of added/deleted lines in diffs can be slid up or down, because lines at the edges of the group are not unique. Picking good shifts for such groups is not a matter of correctness but definitely has a big effect on aesthetics. For example, consider the following two diffs. The first is what standard Git emits: --- a/9c572b21dd090a1e5c5bb397053bf8043ffe7fb4:git-send-email.perl +++ b/6dcfa306f2b67b733a7eb2d7ded1bc9987809edb:git-send-email.perl @@ -231,6 +231,9 @@ if (!defined $initial_reply_to && $prompting) { } if (!$smtp_server) { + $smtp_server = $repo->config('sendemail.smtpserver'); +} +if (!$smtp_server) { foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) { if (-x $_) { $smtp_server = $_; The following diff is equivalent, but is obviously preferable from an aesthetic point of view: --- a/9c572b21dd090a1e5c5bb397053bf8043ffe7fb4:git-send-email.perl +++ b/6dcfa306f2b67b733a7eb2d7ded1bc9987809edb:git-send-email.perl @@ -230,6 +230,9 @@ if (!defined $initial_reply_to && $prompting) { $initial_reply_to =~ s/(^\s+|\s+$)//g; } +if (!$smtp_server) { + $smtp_server = $repo->config('sendemail.smtpserver'); +} if (!$smtp_server) { foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) { if (-x $_) { This patch teaches Git to pick better positions for such "diff sliders" using heuristics that take the positions of nearby blank lines and the indentation of nearby lines into account. The existing Git code basically always shifts such "sliders" as far down in the file as possible. The only exception is when the slider can be aligned with a group of changed lines in the other file, in which case Git favors depicting the change as one add+delete block rather than one add and a slightly offset delete block. This naive algorithm often yields ugly diffs. Commit d634d61ed6 improved the situation somewhat by preferring to position add/delete groups to make their last line a blank line, when that is possible. This heuristic does more good than harm, but (1) it can only help if there are blank lines in the right places, and (2) always picks the last blank line, even if there are others that might be better. The end result is that it makes perhaps 1/3 as many errors as the default Git algorithm, but that still leaves a lot of ugly diffs. This commit implements a new and much better heuristic for picking optimal "slider" positions using the following approach: First observe that each hypothetical positioning of a diff slider introduces two splits: one between the context lines preceding the group and the first added/deleted line, and the other between the last added/deleted line and the first line of context following it. It tries to find the positioning that creates the least bad splits. Splits are evaluated based only on the presence and locations of nearby blank lines, and the indentation of lines near the split. Basically, it prefers to introduce splits adjacent to blank lines, between lines that are indented less, and between lines with the same level of indentation. In more detail: 1. It measures the following characteristics of a proposed splitting position in a `struct split_measurement`: * the number of blank lines above the proposed split * whether the line directly after the split is blank * the number of blank lines following that line * the indentation of the nearest non-blank line above the split * the indentation of the line directly below the split * the indentation of the nearest non-blank line after that line 2. It combines the measured attributes using a bunch of empirically-optimized weighting factors to derive a `struct split_score` that measures the "badness" of splitting the text at that position. 3. It combines the `split_score` for the top and the bottom of the slider at each of its possible positions, and selects the position that has the best `split_score`. I determined the initial set of weighting factors by collecting a corpus of Git histories from 29 open-source software projects in various programming languages. I generated many diffs from this corpus, and determined the best positioning "by eye" for about 6600 diff sliders. I used about half of the repositories in the corpus (corresponding to about 2/3 of the sliders) as a training set, and optimized the weights against this corpus using a crude automated search of the parameter space to get the best agreement with the manually-determined values. Then I tested the resulting heuristic against the full corpus. The results are summarized in the following table, in column `indent-1`: | repository | count | Git 2.9.0 | compaction | compaction-fixed | indent-1 | indent-2 | | --------------------- | ----- | -------------- | -------------- | ---------------- | -------------- | -------------- | | afnetworking | 109 | 89 (81.7%) | 37 (33.9%) | 37 (33.9%) | 2 (1.8%) | 2 (1.8%) | | alamofire | 30 | 18 (60.0%) | 14 (46.7%) | 15 (50.0%) | 0 (0.0%) | 0 (0.0%) | | angular | 184 | 127 (69.0%) | 39 (21.2%) | 23 (12.5%) | 5 (2.7%) | 5 (2.7%) | | animate | 313 | 2 (0.6%) | 2 (0.6%) | 2 (0.6%) | 2 (0.6%) | 2 (0.6%) | | ant | 380 | 356 (93.7%) | 152 (40.0%) | 148 (38.9%) | 15 (3.9%) | 15 (3.9%) | * | bugzilla | 306 | 263 (85.9%) | 109 (35.6%) | 99 (32.4%) | 14 (4.6%) | 15 (4.9%) | * | corefx | 126 | 91 (72.2%) | 22 (17.5%) | 21 (16.7%) | 6 (4.8%) | 6 (4.8%) | | couchdb | 78 | 44 (56.4%) | 26 (33.3%) | 28 (35.9%) | 6 (7.7%) | 6 (7.7%) | * | cpython | 937 | 158 (16.9%) | 50 (5.3%) | 49 (5.2%) | 5 (0.5%) | 5 (0.5%) | * | discourse | 160 | 95 (59.4%) | 42 (26.2%) | 36 (22.5%) | 18 (11.2%) | 13 (8.1%) | | docker | 307 | 194 (63.2%) | 198 (64.5%) | 253 (82.4%) | 8 (2.6%) | 8 (2.6%) | * | electron | 163 | 132 (81.0%) | 38 (23.3%) | 39 (23.9%) | 6 (3.7%) | 6 (3.7%) | | git | 536 | 470 (87.7%) | 73 (13.6%) | 78 (14.6%) | 16 (3.0%) | 16 (3.0%) | * | gitflow | 127 | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | | ionic | 133 | 89 (66.9%) | 29 (21.8%) | 38 (28.6%) | 1 (0.8%) | 1 (0.8%) | | ipython | 482 | 362 (75.1%) | 167 (34.6%) | 169 (35.1%) | 11 (2.3%) | 11 (2.3%) | * | junit | 161 | 147 (91.3%) | 67 (41.6%) | 66 (41.0%) | 1 (0.6%) | 1 (0.6%) | * | lighttable | 15 | 5 (33.3%) | 0 (0.0%) | 2 (13.3%) | 0 (0.0%) | 0 (0.0%) | | magit | 88 | 75 (85.2%) | 11 (12.5%) | 9 (10.2%) | 1 (1.1%) | 0 (0.0%) | | neural-style | 28 | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | | nodejs | 781 | 649 (83.1%) | 118 (15.1%) | 111 (14.2%) | 4 (0.5%) | 5 (0.6%) | * | phpmyadmin | 491 | 481 (98.0%) | 75 (15.3%) | 48 (9.8%) | 2 (0.4%) | 2 (0.4%) | * | react-native | 168 | 130 (77.4%) | 79 (47.0%) | 81 (48.2%) | 0 (0.0%) | 0 (0.0%) | | rust | 171 | 128 (74.9%) | 30 (17.5%) | 27 (15.8%) | 16 (9.4%) | 14 (8.2%) | | spark | 186 | 149 (80.1%) | 52 (28.0%) | 52 (28.0%) | 2 (1.1%) | 2 (1.1%) | | tensorflow | 115 | 66 (57.4%) | 48 (41.7%) | 48 (41.7%) | 5 (4.3%) | 5 (4.3%) | | test-more | 19 | 15 (78.9%) | 2 (10.5%) | 2 (10.5%) | 1 (5.3%) | 1 (5.3%) | * | test-unit | 51 | 34 (66.7%) | 14 (27.5%) | 8 (15.7%) | 2 (3.9%) | 2 (3.9%) | * | xmonad | 23 | 22 (95.7%) | 2 (8.7%) | 2 (8.7%) | 1 (4.3%) | 1 (4.3%) | * | --------------------- | ----- | -------------- | -------------- | ---------------- | -------------- | -------------- | | totals | 6668 | 4391 (65.9%) | 1496 (22.4%) | 1491 (22.4%) | 150 (2.2%) | 144 (2.2%) | | totals (training set) | 4552 | 3195 (70.2%) | 1053 (23.1%) | 1061 (23.3%) | 86 (1.9%) | 88 (1.9%) | | totals (test set) | 2116 | 1196 (56.5%) | 443 (20.9%) | 430 (20.3%) | 64 (3.0%) | 56 (2.6%) | In this table, the numbers are the count and percentage of human-rated sliders that the corresponding algorithm got *wrong*. The columns are * "repository" - the name of the repository used. I used the diffs between successive non-merge commits on the HEAD branch of the corresponding repository. * "count" - the number of sliders that were human-rated. I chose most, but not all, sliders to rate from those among which the various algorithms gave different answers. * "Git 2.9.0" - the default algorithm used by `git diff` in Git 2.9.0. * "compaction" - the heuristic used by `git diff --compaction-heuristic` in Git 2.9.0. * "compaction-fixed" - the heuristic used by `git diff --compaction-heuristic` after the fixes from earlier in this patch series. Note that the results are not dramatically different than those for "compaction". Both produce non-ideal diffs only about 1/3 as often as the default `git diff`. * "indent-1" - the new `--indent-heuristic` algorithm, using the first set of weighting factors, determined as described above. * "indent-2" - the new `--indent-heuristic` algorithm, using the final set of weighting factors, determined as described below. * `*` - indicates that repo was part of training set used to determine the first set of weighting factors. The fact that the heuristic performed nearly as well on the test set as on the training set in column "indent-1" is a good indication that the heuristic was not over-trained. Given that fact, I ran a second round of optimization, using the entire corpus as the training set. The resulting set of weights gave the results in column "indent-2". These are the weights included in this patch. The final result gives consistently and significantly better results across the whole corpus than either `git diff` or `git diff --compaction-heuristic`. It makes only about 1/30 as many errors as the former and about 1/10 as many errors as the latter. (And a good fraction of the remaining errors are for diffs that involve weirdly-formatted code, sometimes apparently machine-generated.) The tools that were used to do this optimization and analysis, along with the human-generated data values, are recorded in a separate project [1]. This patch adds a new command-line option `--indent-heuristic`, and a new configuration setting `diff.indentHeuristic`, that activate this heuristic. This interface is only meant for testing purposes, and should be finalized before including this change in any release. [1] https://github.com/mhagger/diff-slider-tools Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-23xdl_change_compact(): introduce the concept of a change groupLibravatar Michael Haggerty1-90/+203
The idea of xdl_change_compact() is fairly simple: * Proceed through groups of changed lines in the file to be compacted, keeping track of the corresponding location in the "other" file. * If possible, slide the group up and down to try to give the most aesthetically pleasing diff. Whenever it is slid, the current location in the other file needs to be adjusted. But these simple concepts are obfuscated by a lot of index handling that is written in terse, subtle, and varied patterns. I found it very hard to convince myself that the function was correct. So introduce a "struct group" that represents a group of changed lines in a file. Add some functions that perform elementary operations on groups: * Initialize a group to the first group in a file * Move to the next or previous group in a file * Slide a group up or down Even though the resulting code is longer, I think it is easier to understand and review. Its performance is not changed appreciably (though it would be if `group_next()` and `group_previous()` were not inlined). ...and in fact, the rewriting helped me discover another bug in the --compaction-heuristic code: The update of blank_lines was never done for the highest possible position of the group. This means that it could fail to slide the group to its highest possible position, even if that position had a blank line as its last line. So for example, it yielded the following diff: $ git diff --no-index --compaction-heuristic a.txt b.txt diff --git a/a.txt b/b.txt index e53969f..0d60c5fe 100644 --- a/a.txt +++ b/b.txt @@ -1,3 +1,7 @@ 1 A + +B + +A 2 when in fact the following diff is better (according to the rules of --compaction-heuristic): $ git diff --no-index --compaction-heuristic a.txt b.txt diff --git a/a.txt b/b.txt index e53969f..0d60c5fe 100644 --- a/a.txt +++ b/b.txt @@ -1,3 +1,7 @@ 1 +A + +B + A 2 The new code gives the bottom answer. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-23recs_match(): take two xrecord_t pointers as argumentsLibravatar Michael Haggerty1-7/+7
There is no reason for it to take an array and two indexes as argument, as it only accesses two elements of the array. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-23is_blank_line(): take a single xrecord_t as argumentLibravatar Michael Haggerty1-4/+4
There is no reason for it to take an array and index as argument, as it only accesses a single element of the array. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-23xdl_change_compact(): only use heuristic if group can't be matchedLibravatar Michael Haggerty1-19/+19
If the changed group of lines can be matched to a group in the other file, then that positioning should take precedence over the compaction heuristic. The old code tried the heuristic unconditionally, which cost redundant effort and also was broken if the matching code had already shifted the group higher than the blank line. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-23xdl_change_compact(): fix compaction heuristic to adjust ixoLibravatar Michael Haggerty1-0/+1
The code branch used for the compaction heuristic forgot to keep ixo in sync while the group was shifted. This is certainly wrong, as it causes the two counters to get out of sync. I *think* that this bug could also have caused the function to read past the end of the rchgo array, though I haven't done the work to prove it for sure. Here is my reasoning: If ixo is not decremented correctly during one iteration of the outer while loop, then it will loose sync with the ix counter. In particular, ixo will be too large. Suppose that the next iterations of the outer while loop (i.e., processing the next block of add/delete lines) don't have any sliders. Then the ixo counter would be incremented by the number of non-changed lines in xdf, which is the same as the number of non-changed lines in xdfo that *should have* followed the group that experienced the malfunction. But since ixo was too large at the end of that iteration, it will be incremented past the end of the xdfo->rchg array, and will try to read that memory illegally. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-06Merge branch 'jk/add-i-diff-compact-heuristics'Libravatar Junio C Hamano1-0/+4
"git add -i/-p" learned to honor diff.compactionHeuristic experimental knob, so that the user can work on the same hunk split as "git diff" output. * jk/add-i-diff-compact-heuristics: add--interactive: respect diff.compactionHeuristic
2016-07-06Merge branch 'km/fetch-do-not-free-remote-name'Libravatar Junio C Hamano1-4/+2
The ownership rule for the piece of memory that hold references to be fetched in "git fetch" was screwy, which has been cleaned up. * km/fetch-do-not-free-remote-name: builtin/fetch.c: don't free remote->name after fetch
2016-07-06Merge branch 'nd/test-lib-httpd-show-error-log-in-verbose'Libravatar Junio C Hamano1-0/+1
HTTPd tests learned to show the server error log to help diagnosing a failing tests. * nd/test-lib-httpd-show-error-log-in-verbose: lib-httpd.sh: print error.log on error
2016-07-06Merge branch 'jk/string-list-static-init'Libravatar Junio C Hamano11-21/+24
Instead of taking advantage of a struct string_list that is allocated with all NULs happens to be STRING_LIST_INIT_NODUP kind, initialize them explicitly as such, to document their behaviour better. * jk/string-list-static-init: use string_list initializer consistently blame,shortlog: don't make local option variables static interpret-trailers: don't duplicate option strings parse_opt_string_list: stop allocating new strings
2016-07-06Merge branch 'jk/send-pack-stdio'Libravatar Junio C Hamano3-29/+16
Code clean-up. * jk/send-pack-stdio: write_or_die: remove the unused write_or_whine() function send-pack: use buffered I/O to talk to pack-objects
2016-07-06Merge branch 'pb/commit-editmsg-path'Libravatar Junio C Hamano1-7/+8
Code clean-up. * pb/commit-editmsg-path: builtin/commit.c: memoize git-path for COMMIT_EDITMSG
2016-07-06Merge branch 'ep/http-curl-trace'Libravatar Junio C Hamano4-2/+133
HTTP transport gained an option to produce more detailed debugging trace. * ep/http-curl-trace: imap-send.c: introduce the GIT_TRACE_CURL enviroment variable http.c: implement the GIT_TRACE_CURL environment variable
2016-06-27Second batch of topics for 2.10Libravatar Junio C Hamano1-0/+65
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27Sync with maintLibravatar Junio C Hamano1-0/+28
* maint: Start preparing for 2.9.1
2016-06-27Start preparing for 2.9.1Libravatar Junio C Hamano2-1/+29
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-27Merge branch 'tb/complete-status'Libravatar Junio C Hamano1-1/+97
The completion script (in contrib/) learned to complete "git status" options. * tb/complete-status: completion: add git status completion: add __git_get_option_value helper completion: factor out untracked file modes into a variable
2016-06-27Merge branch 'mg/cherry-pick-multi-on-unborn'Libravatar Junio C Hamano1-5/+6
"git cherry-pick A" worked on an unborn branch, but "git cherry-pick A..B" didn't. * mg/cherry-pick-multi-on-unborn: cherry-pick: allow to pick to unborn branches
2016-06-27Merge branch 'lf/receive-pack-auto-gc-to-client'Libravatar Junio C Hamano1-2/+13
Allow messages that are generated by auto gc during "git push" on the receiving end to be explicitly passed back to the sending end over sideband, so that they are shown with "remote: " prefix to avoid confusing the users. * lf/receive-pack-auto-gc-to-client: receive-pack: send auto-gc output over sideband 2
2016-06-27Merge branch 'em/newer-freebsd-shells-are-fine-with-returns'Libravatar Junio C Hamano3-6/+6
Comments about misbehaving FreeBSD shells have been clarified with the version number (9.x and before are broken, newer ones are OK). * em/newer-freebsd-shells-are-fine-with-returns: rebase: update comment about FreeBSD /bin/sh
2016-06-27Merge branch 'lv/status-say-working-tree-not-directory'Libravatar Junio C Hamano1-1/+1
"git status" used to say "working directory" when it meant "working tree". * lv/status-say-working-tree-not-directory: Use "working tree" instead of "working directory" for git status
2016-06-27Merge branch 'nb/gnome-keyring-build'Libravatar Junio C Hamano1-2/+3
Build improvements for gnome-keyring (in contrib/) * nb/gnome-keyring-build: gnome-keyring: Don't hard-code pkg-config executable
2016-06-27Merge branch 'jc/deref-tag'Libravatar Junio C Hamano2-6/+3
Code clean-up. * jc/deref-tag: blame, line-log: do not loop around deref_tag()
2016-06-27Merge branch 'et/add-chmod-x'Libravatar Junio C Hamano6-20/+68
"git update-index --add --chmod=+x file" may be usable as an escape hatch, but not a friendly thing to force for people who do need to use it regularly. "git add --chmod=+x file" can be used instead. * et/add-chmod-x: add: add --chmod=+x / --chmod=-x options
2016-06-27Merge branch 'jk/avoid-unbounded-alloca'Libravatar Junio C Hamano1-6/+16
* jk/avoid-unbounded-alloca: tree-diff: avoid alloca for large allocations
2016-06-27Merge branch 'rj/compat-regex-size-max-fix'Libravatar Junio C Hamano2-2/+1
A compilation fix. * rj/compat-regex-size-max-fix: regex: fix a SIZE_MAX macro redefinition warning
2016-06-27Merge branch 'vs/prompt-avoid-unset-variable'Libravatar Junio C Hamano1-3/+3
The git-prompt scriptlet (in contrib/) was not friendly with those who uses "set -u", which has been fixed. * vs/prompt-avoid-unset-variable: git-prompt.sh: Don't error on null ${ZSH,BASH}_VERSION, $short_sha
2016-06-27Merge branch 'sg/reflog-past-root'Libravatar Junio C Hamano3-1/+29
"git reflog" stopped upon seeing an entry that denotes a branch creation event (aka "unborn"), which made it appear as if the reflog was truncated. * sg/reflog-past-root: reflog: continue walking the reflog past root commits
2016-06-27Merge branch 'pb/strbuf-read-file-doc'Libravatar Junio C Hamano1-0/+2
* pb/strbuf-read-file-doc: strbuf: describe the return value of strbuf_read_file
2016-06-27Merge branch 'dn/gpg-doc'Libravatar Junio C Hamano2-2/+2
The documentation tries to consistently spell "GPG"; when referring to the specific program name, "gpg" is used. * dn/gpg-doc: Documentation: GPG capitalization
2016-06-27Merge branch 'jk/fetch-prune-doc'Libravatar Junio C Hamano1-1/+1
* jk/fetch-prune-doc: fetch: document that pruning happens before fetching
2016-06-27Merge branch 'ap/git-svn-propset-doc'Libravatar Junio C Hamano1-0/+14
"git svn propset" subcommand that was added in 2.3 days is documented now. * ap/git-svn-propset-doc: git-svn: document the 'git svn propset' command
2016-06-27Merge branch 'tr/doc-tt'Libravatar Junio C Hamano36-217/+224
The documentation set has been updated so that literal commands, configuration variables and environment variables are consistently typeset in fixed-width font and bold in manpages. * tr/doc-tt: doc: change configuration variables format doc: more consistency in environment variables format doc: change environment variables format doc: clearer rule about formatting literals
2016-06-27Merge branch 'pc/occurred'Libravatar Junio C Hamano2-2/+2
* pc/occurred: config.c: fix misspelt "occurred" in an error message refs.h: fix misspelt "occurred" in a comment
2016-06-27Merge branch 'cc/apply-introduce-state'Libravatar Junio C Hamano1-609/+820
The "git apply" standalone program is being libified; this is the first step to move many state variables into a structure that can be explicitly (re)initialized to make the machinery callable more than once. The next step that moves some remaining state variables into the structure and turns die()s into an error return that propagates up to the caller is not queued yet but in flight. It would be good to review the above first and give the remainder of the series a solid base to build on. * cc/apply-introduce-state: (50 commits) builtin/apply: remove misleading comment on lock_file field builtin/apply: move 'newfd' global into 'struct apply_state' builtin/apply: add 'lock_file' pointer into 'struct apply_state' builtin/apply: move applying patches into apply_all_patches() builtin/apply: move 'state' check into check_apply_state() builtin/apply: move 'symlink_changes' global into 'struct apply_state' builtin/apply: move 'fn_table' global into 'struct apply_state' builtin/apply: move 'state_linenr' global into 'struct apply_state' builtin/apply: move 'max_change' and 'max_len' into 'struct apply_state' builtin/apply: move 'ws_ignore_action' into 'struct apply_state' builtin/apply: move 'ws_error_action' into 'struct apply_state' builtin/apply: move 'applied_after_fixing_ws' into 'struct apply_state' builtin/apply: move 'squelch_whitespace_errors' into 'struct apply_state' builtin/apply: remove whitespace_option arg from set_default_whitespace_mode() builtin/apply: move 'whitespace_option' into 'struct apply_state' builtin/apply: move 'whitespace_error' global into 'struct apply_state' builtin/apply: move 'root' global into 'struct apply_state' builtin/apply: move 'p_value_known' global into 'struct apply_state' builtin/apply: move 'p_value' global into 'struct apply_state' builtin/apply: move 'has_include' global into 'struct apply_state' ...
2016-06-27Merge branch 'rs/xdiff-hunk-with-func-line' into maintLibravatar Junio C Hamano10-93/+365
"git show -W" (extend hunks to cover the entire function, delimited by lines that match the "funcname" pattern) used to show the entire file when a change added an entire function at the end of the file, which has been fixed. * rs/xdiff-hunk-with-func-line: xdiff: fix merging of appended hunk with -W grep: -W: don't extend context to trailing empty lines t7810: add test for grep -W and trailing empty context lines xdiff: don't trim common tail with -W xdiff: -W: don't include common trailing empty lines in context xdiff: ignore empty lines before added functions with -W xdiff: handle appended chunks better with -W xdiff: factor out match_func_rec() t4051: rewrite, add more tests
2016-06-27Merge branch 'jk/rev-list-count-with-bitmap' into maintLibravatar Junio C Hamano2-1/+11
"git rev-list --count" whose walk-length is limited with "-n" option did not work well with the counting optimized to look at the bitmap index. * jk/rev-list-count-with-bitmap: rev-list: disable bitmaps when "-n" is used with listing objects rev-list: "adjust" results of "--count --use-bitmap-index -n"
2016-06-27Merge branch 'et/pretty-format-c-auto' into maintLibravatar Junio C Hamano2-8/+20
The commands in `git log` family take %C(auto) in a custom format string. This unconditionally turned the color on, ignoring --no-color or with --color=auto when the output is not connected to a tty; this was corrected to make the format truly behave as "auto". * et/pretty-format-c-auto: format_commit_message: honor `color=auto` for `%C(auto)`
2016-06-27Merge branch 'ew/daemon-socket-keepalive' into maintLibravatar Junio C Hamano1-0/+14
When "git daemon" is run without --[init-]timeout specified, a connection from a client that silently goes offline can hang around for a long time, wasting resources. The socket-level KEEPALIVE has been enabled to allow the OS to notice such failed connections. * ew/daemon-socket-keepalive: daemon: enable SO_KEEPALIVE for all sockets
2016-06-22git-svn: skip mergeinfo handling with --no-follow-parentLibravatar Eric Wong1-9/+16
For repositories without parent following enabled, finding git parents through svn:mergeinfo or svk::parents can be expensive and pointless. Reported-by: Александр Овчинников <proff@proff.email> http://mid.gmane.org/4094761466408188@web24o.yandex.ru Signed-off-by: Eric Wong <e@80x24.org>
2016-06-20Start the post-2.9 cycleLibravatar Junio C Hamano3-2/+70
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-20Merge branch 'rs/xdiff-hunk-with-func-line'Libravatar Junio C Hamano10-93/+365
"git show -W" (extend hunks to cover the entire function, delimited by lines that match the "funcname" pattern) used to show the entire file when a change added an entire function at the end of the file, which has been fixed. * rs/xdiff-hunk-with-func-line: xdiff: fix merging of appended hunk with -W grep: -W: don't extend context to trailing empty lines t7810: add test for grep -W and trailing empty context lines xdiff: don't trim common tail with -W xdiff: -W: don't include common trailing empty lines in context xdiff: ignore empty lines before added functions with -W xdiff: handle appended chunks better with -W xdiff: factor out match_func_rec() t4051: rewrite, add more tests
2016-06-20Merge branch 'jk/rev-list-count-with-bitmap'Libravatar Junio C Hamano2-1/+11
"git rev-list --count" whose walk-length is limited with "-n" option did not work well with the counting optimized to look at the bitmap index. * jk/rev-list-count-with-bitmap: rev-list: disable bitmaps when "-n" is used with listing objects rev-list: "adjust" results of "--count --use-bitmap-index -n"
2016-06-20Merge branch 'wd/userdiff-css'Libravatar Junio C Hamano15-0/+90
Update the funcname definition to support css files. * wd/userdiff-css: userdiff: add built-in pattern for CSS
2016-06-20Merge branch 'jc/clear-pathspec'Libravatar Junio C Hamano10-15/+15
We usually call a function that clears the contents a data structure X without freeing the structure itself clear_X(), and call a function that does clear_X() and also frees it free_X(). free_pathspec() function has been renamed to clear_pathspec() to avoid confusion. * jc/clear-pathspec: pathspec: rename free_pathspec() to clear_pathspec()
2016-06-20Merge branch 'aq/upload-pack-use-parse-options'Libravatar Junio C Hamano2-36/+37
"git upload-pack" command has been updated to use the parse-options API. * aq/upload-pack-use-parse-options: upload-pack.c: use parse-options API
2016-06-20Merge branch 'jg/dash-is-last-branch-in-worktree-add'Libravatar Junio C Hamano3-1/+21
"git worktree add" learned that '-' can be used as a short-hand for "@{-1}", the previous branch. * jg/dash-is-last-branch-in-worktree-add: worktree: allow "-" short-hand for @{-1} in add command
2016-06-20Merge branch 'et/pretty-format-c-auto'Libravatar Junio C Hamano2-8/+20
The commands in `git log` family take %C(auto) in a custom format string. This unconditionally turned the color on, ignoring --no-color or with --color=auto when the output is not connected to a tty; this was corrected to make the format truly behave as "auto". * et/pretty-format-c-auto: format_commit_message: honor `color=auto` for `%C(auto)`
2016-06-20Merge branch 'sb/submodule-recommend-shallowness'Libravatar Junio C Hamano6-4/+85
An upstream project can make a recommendation to shallowly clone some submodules in the .gitmodules file it ships. * sb/submodule-recommend-shallowness: submodule update: learn `--[no-]recommend-shallow` option submodule-config: keep shallow recommendation around