summaryrefslogtreecommitdiff
path: root/diff.h
Commit message (Collapse)AuthorAgeFilesLines
* Merge branch 'mp/diff-algo-config'Junio C Hamano2013-02-171-0/+2
|\ | | | | | | | | | | | | | | | | | | Add diff.algorithm configuration so that the user does not type "diff --histogram". * mp/diff-algo-config: diff: Introduce --diff-algorithm command line option config: Introduce diff.algorithm variable git-completion.bash: Autocomplete --minimal and --histogram for git-diff
| * diff: Introduce --diff-algorithm command line optionMichal Privoznik2013-01-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | Since command line options have higher priority than config file variables and taking previous commit into account, we need a way how to specify myers algorithm on command line. However, inventing `--myers` is not the right answer. We need far more general option, and that is `--diff-algorithm`. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | diff: add diff_line_prefix functionJohn Keeping2013-02-121-0/+3
|/ | | | | | | | | This is a helper function to call the diff output_prefix function and return its value as a C string, allowing us to greatly simplify everywhere that needs to get the output prefix. Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Move setup_diff_pager to libgit.aNguyễn Thái Ngọc Duy2012-10-291-0/+1
| | | | | | | | | | | | This is used by diff-no-index.c, part of libgit.a while it stays in builtin/diff.c. Move it to diff.c so that we won't get undefined reference if a program that uses libgit.a happens to pull it in. While at it, move check_pager from git.c to pager.c. It makes more sense there and pager.c is also part of libgit.a Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jeff King <peff@peff.net>
* diff.c: mark a private file-scope symbol as staticJunio C Hamano2012-09-151-1/+0
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'jk/maint-null-in-trees'Junio C Hamano2012-08-271-0/+5
|\ | | | | | | | | | | | | | | | | We do not want a link to 0{40} object stored anywhere in our objects. * jk/maint-null-in-trees: fsck: detect null sha1 in tree entries do not write null sha1s to on-disk index diff: do not use null sha1 as a sentinel value
| * diff: do not use null sha1 as a sentinel valueJeff King2012-07-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The diff code represents paths using the diff_filespec struct. This struct has a sha1 to represent the sha1 of the content at that path, as well as a sha1_valid member which indicates whether its sha1 field is actually useful. If sha1_valid is not true, then the filespec represents a working tree file (e.g., for the no-index case, or for when the index is not up-to-date). The diff_filespec is only used internally, though. At the interfaces to the diff subsystem, callers feed the sha1 directly, and we create a diff_filespec from it. It's at that point that we look at the sha1 and decide whether it is valid or not; callers may pass the null sha1 as a sentinel value to indicate that it is not. We should not typically see the null sha1 coming from any other source (e.g., in the index itself, or from a tree). However, a corrupt tree might have a null sha1, which would cause "diff --patch" to accidentally diff the working tree version of a file instead of treating it as a blob. This patch extends the edges of the diff interface to accept a "sha1_valid" flag whenever we accept a sha1, and to use that flag when creating a filespec. In some cases, this means passing the flag through several layers, making the code change larger than would be desirable. One alternative would be to simply die() upon seeing corrupted trees with null sha1s. However, this fix more directly addresses the problem (while bogus sha1s in a tree are probably a bad thing, it is really the sentinel confusion sending us down the wrong code path that is what makes it devastating). And it means that git is more capable of examining and debugging these corrupted trees. For example, you can still "diff --raw" such a tree to find out when the bogus entry was introduced; you just cannot do a "--patch" diff (just as you could not with any other corrupted tree, as we do not have any content to diff). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'tr/void-diff-setup-done'Junio C Hamano2012-08-221-1/+1
|\ \ | | | | | | | | | | | | | | | | | | Remove unnecessary code. * tr/void-diff-setup-done: diff_setup_done(): return void
| * | diff_setup_done(): return voidThomas Rast2012-08-031-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | diff_setup_done() has historically returned an error code, but lost the last nonzero return in 943d5b7 (allow diff.renamelimit to be set regardless of -M/-C, 2006-08-09). The callers were in a pretty confused state: some actually checked for the return code, and some did not. Let it return void, and patch all callers to take this into account. This conveniently also gets rid of a handful of different(!) error messages that could never be triggered anyway. Note that the function can still die(). Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'lp/diffstat-with-graph'Junio C Hamano2012-05-021-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "log --graph" was not very friendly with "--stat" option and its output had line breaks at wrong places. By Lucian Poston (5) and Zbigniew Jędrzejewski-Szmek (2) * lp/diffstat-with-graph: t4052: work around shells unable to set COLUMNS to 1 Prevent graph_width of stat width from falling below min t4052: Test diff-stat output with minimum columns t4052: Adjust --graph --stat output for prefixes Adjust stat width calculations to take --graph output into account Add output_prefix_length to diff_options t4052: test --stat output with --graph
| * | Add output_prefix_length to diff_optionsLucian Poston2012-04-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Add output_prefix_length to diff_options. Initialize the value to 0 and only set it when graph.c:diff_output_prefix_callback() is called. Signed-off-by: Lucian Poston <lucian.poston@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jk/diff-no-rename-empty'Junio C Hamano2012-04-161-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Forbids rename detection logic from matching two empty files as renames during merge-recursive to prevent mismerges. By Jeff King * jk/diff-no-rename-empty: merge-recursive: don't detect renames of empty files teach diffcore-rename to optionally ignore empty content make is_empty_blob_sha1 available everywhere drop casts from users EMPTY_TREE_SHA1_BIN
| * | | teach diffcore-rename to optionally ignore empty contentJeff King2012-03-231-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Our rename detection is a heuristic, matching pairs of removed and added files with similar or identical content. It's unlikely to be wrong when there is actual content to compare, and we already take care not to do inexact rename detection when there is not enough content to produce good results. However, we always do exact rename detection, even when the blob is tiny or empty. It's easy to get false positives with an empty blob, simply because it is an obvious content to use as a boilerplate (e.g., when telling git that an empty directory is worth tracking via an empty .gitignore). This patch lets callers specify whether or not they are interested in using empty files as rename sources and destinations. The default is "yes", keeping the original behavior. It works by detecting the empty-blob sha1 for rename sources and destinations. One more flexible alternative would be to allow the caller to specify a minimum size for a blob to be "interesting" for rename detection. But that would catch small boilerplate files, not large ones (e.g., if you had the GPL COPYING file in many directories). A better alternative would be to allow a "-rename" gitattribute to allow boilerplate files to be marked as such. I'll leave the complexity of that solution until such time as somebody actually wants it. The complaints we've seen so far revolve around empty files, so let's start with the simple thing. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/diff-algo-cleanup'Junio C Hamano2012-04-151-0/+2
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | Resurrects the preparatory clean-up patches from another topic that was discarded, as this would give a saner foundation to build on diff.algo configuration option series. * jc/diff-algo-cleanup: xdiff: PATIENCE/HISTOGRAM are not independent option bits xdiff: remove XDL_PATCH_* macros
| * | xdiff: PATIENCE/HISTOGRAM are not independent option bitsjc/diff-algo-cleanupJunio C Hamano2012-02-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because the default Myers, patience and histogram algorithms cannot be in effect at the same time, XDL_PATIENCE_DIFF and XDL_HISTOGRAM_DIFF are not independent bits. Instead of wasting one bit per algorithm, define a few macros to access the few bits they occupy and update the code that access them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/pickaxe-ignore-case'Junio C Hamano2012-03-071-0/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | By Junio C Hamano (2) and Ramsay Jones (1) * jc/pickaxe-ignore-case: ctype.c: Fix a sparse warning pickaxe: allow -i to search in patch case-insensitively grep: use static trans-case table
| * | | pickaxe: allow -i to search in patch case-insensitivelyJunio C Hamano2012-02-281-0/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git log -S<string>" is a useful way to find the last commit in the codebase that touched the <string>. As it was designed to be used by a porcelain script to dig the history starting from a block of text that appear in the starting commit, it never had to look for anything but an exact match. When used by an end user who wants to look for the last commit that removed a string (e.g. name of a variable) that he vaguely remembers, however, it is useful to support case insensitive match. When given the "--regexp-ignore-case" (or "-i") option, which originally was designed to affect case sensitivity of the search done in the commit log part, e.g. "log --grep", the matches made with -S/-G pickaxe search is done case insensitively now. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'zj/diff-stat-dyncol'Junio C Hamano2012-03-061-0/+1
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By Zbigniew Jędrzejewski-Szmek (8) and Junio C Hamano (1) * zj/diff-stat-dyncol: : This breaks tests. Perhaps it is not worth using the decimal-width stuff : for this series, at least initially. diff --stat: add config option to limit graph width diff --stat: enable limiting of the graph part diff --stat: add a test for output with COLUMNS=40 diff --stat: use a maximum of 5/8 for the filename part merge --stat: use the full terminal width log --stat: use the full terminal width show --stat: use the full terminal width diff --stat: use the full terminal width diff --stat: tests for long filenames and big change counts
| * | diff --stat: enable limiting of the graph partZbigniew Jędrzejewski-Szmek2012-03-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A new option --stat-graph-width=<width> can be used to limit the width of the graph part even is more space is available. Up to <width> columns will be used for the graph. If commits changing a lot of lines are displayed in a wide terminal window (200 or more columns), and the +- graph uses the full width, the output can be hard to comfortably scan with a horizontal movement of human eyes. Messages wrapped to about 80 columns would be interspersed with very long +- lines. It makes sense to limit the width of the graph part to a fixed value (e.g. 70 columns), even if more columns are available. Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Use correct grammar in diffstat summary linend/diffstat-gramnumNguyễn Thái Ngọc Duy2012-02-031-0/+3
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git diff --stat" and "git apply --stat" now learn to print the line "%d files changed, %d insertions(+), %d deletions(-)" in singular form whenever applicable. "0 insertions" and "0 deletions" are also omitted unless they are both zero. This matches how versions of "diffstat" that are not prehistoric produced their output, and also makes this line translatable. [jc: with help from Thomas Dickey in archaeology of "diffstat"] [jc: squashed Jonathan's updates to illustrations in tutorials and a test] Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | pass struct commit to diff_tree_combined_merge()René Scharfe2011-12-171-1/+2
| | | | | | | | | | | | | | | | Instead of passing the hash of a commit and then searching that same commit in the single caller, simply pass the commit directly. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | use struct sha1_array in diff_tree_combined()René Scharfe2011-12-171-1/+2
|/ | | | | | | | | Maintaining an array of hashes is easier using sha1_array than open-coding it. This patch also fixes a leak of the SHA1 array in diff_tree_combined_merge(). Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* diff: add option to show whole functions as contextrs/diff-whole-functionRené Scharfe2011-10-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the option -W/--function-context to git diff. It is similar to the same option of git grep and expands the context of change hunks so that the whole surrounding function is shown. This "natural" context can allow changes to be understood better. Note: GNU patch doesn't like diffs generated with the new option; it seems to expect context lines to be the same before and after changes. git apply doesn't complain. This implementation has the same shortcoming as the one in grep, namely that there is no way to explicitly find the end of a function. That means that a few lines of extra context are shown, right up to the next recognized function begins. It's already useful in its current form, though. The function get_func_line() in xdiff/xemit.c is extended to work forward as well as backward to find post-context as well as pre-context. It returns the position of the first found matching line. The func_line parameter is made optional, as we don't need it for -W. The enhanced function is then used in xdl_emit_diff() to extend the context as needed. If the added context overlaps with the next change, it is merged into the current hunk. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'jk/color-and-pager'Junio C Hamano2011-08-281-2/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * jk/color-and-pager: want_color: automatically fallback to color.ui diff: don't load color config in plumbing config: refactor get_colorbool function color: delay auto-color decision until point of use git_config_colorbool: refactor stdout_is_tty handling diff: refactor COLOR_DIFF from a flag into an int setup_pager: set GIT_PAGER_IN_USE t7006: use test_config helpers test-lib: add helper functions for config t7006: modernize calls to unset Conflicts: builtin/commit.c parse-options.c
| * diff: refactor COLOR_DIFF from a flag into an intJeff King2011-08-181-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This lets us store more than just a bit flag for whether we want color; we can also store whether we want automatic colors. This can be useful for making the automatic-color decision closer to the point of use. This mostly just involves replacing DIFF_OPT_* calls with manipulations of the flag. The biggest exception is that calls to DIFF_OPT_TST must check for "o->use_color > 0", which lets an "unknown" value (i.e., the default) stay at "no color". In the previous code, a value of "-1" was not propagated at all. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'mg/diff-stat-count'Junio C Hamano2011-06-291-0/+1
|\ \ | |/ |/| | | | | | | | | | | * mg/diff-stat-count: diff --stat-count: finishing touches diff-options.txt: describe --stat-{width,name-width,count} diff: introduce --stat-lines to limit the stat lines diff.c: omit hidden entries from namelen calculation with --stat
| * diff: introduce --stat-lines to limit the stat linesMichael J Gruber2011-05-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Often one is interested in the full --stat output only for commits which change a few files, but not others, because larger restructuring gives a --stat which fills a few screens. Introduce a new option --stat-count=<count> which limits the --stat output to the first <count> lines, followed by a "..." line. It can also be given as the third parameter in --stat=<width>,<name-width>,<count>. Also, the unstuck form is supported analogous to the other two stat parameters. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'jk/diff-not-so-quick'Junio C Hamano2011-06-061-0/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * jk/diff-not-so-quick: diff: futureproof "stop feeding the backend early" logic diff_tree: disable QUICK optimization with diff filter Conflicts: diff.c
| * | diff: futureproof "stop feeding the backend early" logicJunio C Hamano2011-05-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the "do not stop feeding the backend early" logic into a small helper function and use it in both run_diff_files() and diff_tree() that has the stop-early optimization. We may later add other types of diffcore transformation that require to look at the whole result like diff-filter does, and having the logic in a single place is essential for longer term maintainability. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jh/dirstat-lines'Junio C Hamano2011-05-131-1/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * jh/dirstat-lines: Mark dirstat error messages for translation Improve error handling when parsing dirstat parameters New --dirstat=lines mode, doing dirstat analysis based on diffstat Allow specifying --dirstat cut-off percentage as a floating point number Add config variable for specifying default --dirstat behavior Refactor --dirstat parsing; deprecate --cumulative and --dirstat-by-file Make --dirstat=0 output directories that contribute < 0.1% of changes Add several testcases for --dirstat and friends
| * | | New --dirstat=lines mode, doing dirstat analysis based on diffstatJohan Herland2011-04-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds an alternative implementation of show_dirstat(), called show_dirstat_by_line(), which uses the more expensive diffstat analysis (as opposed to show_dirstat()'s own (relatively inexpensive) analysis) to derive the numbers from which the --dirstat output is computed. The alternative implementation is controlled by the new "lines" parameter to the --dirstat option (or the diff.dirstat config variable). For binary files, the diffstat analysis counts bytes instead of lines, so to prevent binary files from dominating the dirstat results, the byte counts for binary files are divided by 64 before being compared to their textual/line-based counterparts. This is a stupid and ugly - but very cheap - heuristic. In linux-2.6.git, running the three different --dirstat modes: time git diff v2.6.20..v2.6.30 --dirstat=changes > /dev/null vs. time git diff v2.6.20..v2.6.30 --dirstat=lines > /dev/null vs. time git diff v2.6.20..v2.6.30 --dirstat=files > /dev/null yields the following average runtimes on my machine: - "changes" (default): ~6.0 s - "lines": ~9.6 s - "files": ~0.1 s So, as expected, there's a considerable performance hit (~60%) by going through the full diffstat analysis as compared to the default "changes" analysis (obviously, "files" is much faster than both). As such, the "lines" mode is probably only useful if you really need the --dirstat numbers to be consistent with the numbers returned from the other --*stat options. The patch also includes documentation and tests for the new dirstat mode. Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | Allow specifying --dirstat cut-off percentage as a floating point numberJohan Herland2011-04-291-1/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only the first digit after the decimal point is kept, as the dirstat calculations all happen in permille. Selftests verifying floating-point percentage input has been added. Improved-by: Junio C Hamano <gitster@pobox.com> Improved-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/fix-diff-files-unmerged'Junio C Hamano2011-05-061-4/+1
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | * jc/fix-diff-files-unmerged: diff-files: show unmerged entries correctly diff: remove often unused parameters from diff_unmerge() diff.c: return filepair from diff_unmerge() test: use $_z40 from test-lib
| * | diff: remove often unused parameters from diff_unmerge()Junio C Hamano2011-04-231-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | e9c8409 (diff-index --cached --raw: show tree entry on the LHS for unmerged entries., 2007-01-05) added a <mode, object name> pair as parameters to this function, to store them in the pre-image side of an unmerged file pair. Now the function is fixed to return the filepair it queued, we can make the caller on the special case codepath to do so. Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | diff.c: return filepair from diff_unmerge()Junio C Hamano2011-04-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The underlying diff_queue() returns diff_filepair so that the caller can further add information to it, and the helper function diff_unmerge() utilizes the feature itself, but does not expose it to its callers, which was kind of selfish. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/diff-irreversible-delete'Junio C Hamano2011-04-281-0/+1
|\ \ \ | | | | | | | | | | | | | | | | * jc/diff-irreversible-delete: git diff -D: omit the preimage of deletes
| * | | git diff -D: omit the preimage of deletesJunio C Hamano2011-04-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reviewing a patch while concentrating primarily on the text after then change, wading through pages of deleted text involves a cognitive burden. Introduce the -D option that omits the preimage text from the patch output for deleted files. When used with -B (represent total rewrite as a single wholesale deletion followed by a single wholesale addition), the preimage text is also omitted. To prevent such a patch from being applied by mistake, the output is designed not to be usable by "git apply" (or GNU "patch"); it is strictly for human consumption. It of course is possible to "apply" such a patch by hand, as a human can read the intention out of such a patch. It however is impossible to apply such a patch even manually in reverse, as the whole point of this option is to omit the information necessary to do so from the output. Initial request by Mart Sõmermaa, documentation and tests helped by Michael J Gruber. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | diffcore-rename: fall back to -C when -C -C busts the rename limitJunio C Hamano2011-03-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When there are too many paths in the project, the number of rename source candidates "git diff -C -C" finds will exceed the rename detection limit, and no inexact rename detection is performed. We however could fall back to "git diff -C" if the number of modified paths is sufficiently small. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'jk/merge-rename-ux'Junio C Hamano2011-03-191-1/+2
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * jk/merge-rename-ux: pull: propagate --progress to merge merge: enable progress reporting for rename detection add inexact rename detection progress infrastructure commit: stop setting rename limit bump rename limit defaults (again) merge: improve inexact rename limit warning
| * | | add inexact rename detection progress infrastructureJeff King2011-02-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We might spend many seconds doing inexact rename detection with no output. It's nice to let the user know that something is actually happening. This patch adds the infrastructure, but no callers actually turn on progress reporting. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | merge: improve inexact rename limit warningJeff King2011-02-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The warning is generated deep in the diffcore code, which means that it will come first, followed possibly by a spew of conflicts, making it hard to see. Instead, let's have diffcore pass back the information about how big the rename limit would needed to have been, and then the caller can provide a more appropriate message (and at a more appropriate time). No refactoring of other non-merge callers is necessary, because nobody else was even using the warn_on_rename_limit feature. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Convert struct diff_options to use struct pathspecNguyễn Thái Ngọc Duy2011-02-031-3/+1
|/ / / | | | | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'kb/merge-recursive-rename-threshold'Junio C Hamano2010-10-261-0/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * kb/merge-recursive-rename-threshold: diff: add synonyms for -M, -C, -B merge-recursive: option to specify rename threshold Conflicts: Documentation/diff-options.txt Documentation/merge-strategies.txt
| * | | merge-recursive: option to specify rename thresholdKevin Ballard2010-09-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recursive merge strategy turns on rename detection but leaves the rename threshold at the default. Add a strategy option to allow the user to specify a rename threshold to use. Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | git log/diff: add -G<regexp> that greps in the patch textJunio C Hamano2010-08-311-0/+3
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach "-G<regexp>" that is similar to "-S<regexp> --pickaxe-regexp" to the "git diff" family of commands. This limits the diff queue to filepairs whose patch text actually has an added or a deleted line that matches the given regexp. Unlike "-S<regexp>", changing other parts of the line that has a substring that matches the given regexp IS counted as a change, as such a change would appear as one deletion followed by one addition in a patch text. Unlike -S (pickaxe) that is intended to be used to quickly detect a commit that changes the number of occurrences of hits between the preimage and the postimage to serve as a part of larger toolchain, this is meant to be used as the top-level Porcelain feature. The implementation unfortunately has to run "diff" twice if you are running "log" family of commands to produce patches in the final output (e.g. "git log -p" or "git format-patch"). I think we _could_ cache the result in-core if we wanted to, but that would require larger surgery to the diffcore machinery (i.e. adding an extra pointer in the filepair structure to keep a pointer to a strbuf around, stuff the textual diff to the strbuf inside diffgrep_consume(), and make use of it in later stages when it is available) and it may not be worth it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'mm/shortopt-detached'Junio C Hamano2010-08-211-0/+7
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * mm/shortopt-detached: log: parse separate option for --glob log: parse separate options like git log --grep foo diff: parse separate options --stat-width n, --stat-name-width n diff: split off a function for --stat-* option parsing diff: parse separate options like -S foo Conflicts: revision.c
| * | | diff: parse separate options like -S fooMatthieu Moy2010-08-061-0/+7
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the option parsing logic in revision.c to accept separate forms like `-S foo' in addition to `-Sfoo'. The rest of git already accepted this form, but revision.c still used its own option parsing. Short options affected are -S<string>, -l<num> and -O<orderfile>, for which an empty string wouldn't make sense, hence -<option> <arg> isn't ambiguous. This patch does not handle --stat-name-width and --stat-width, which are special-cases where diff_long_opt do not apply. They are handled in a separate patch to ease review. Original patch by Matthieu Moy, plus refactoring by Jonathan Nieder. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'jc/maint-follow-rename-fix'Junio C Hamano2010-08-181-0/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | * jc/maint-follow-rename-fix: log: test for regression introduced in v1.7.2-rc0~103^2~2 diff --follow: do call diffcore_std() as necessary diff --follow: do not waste cycles while recursing
| * | | diff --follow: do call diffcore_std() as necessaryJunio C Hamano2010-08-131-0/+3
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usually, diff frontends populate the output queue with filepairs without any rename information and call diffcore_std() to sort the renames out. When --follow is in effect, however, diff-tree family of frontend has a hack that looks like this: diff-tree frontend -> diff_tree_sha1() . populate diff_queued_diff . if --follow is in effect and there is only one change that creates the target path, then -> try_to_follow_renames() -> diff_tree_sha1() with no pathspec but with -C -> diffcore_std() to find renames . if rename is found, tweak diff_queued_diff and put a single filepair that records the found rename there -> diffcore_std() . tweak elements on diff_queued_diff by - rename detection - path ordering - pickaxe filtering We need to skip parts of the second call to diffcore_std() that is related to rename detection, and do so only when try_to_follow_renames() did find a rename. Earlier 1da6175 (Make diffcore_std only can run once before a diff_flush, 2010-05-06) tried to deal with this issue incorrectly; it unconditionally disabled any second call to diffcore_std(). This hopefully fixes the breakage. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Submodules: Add the new "ignore" config option for diff and statusJens Lehmann2010-08-091-0/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new "ignore" config option controls the default behavior for "git status" and the diff family. It specifies under what circumstances they consider submodules as modified and can be set separately for each submodule. The command line option "--ignore-submodules=" has been extended to accept the new parameter "none" for both status and diff. Users that chose submodules to get rid of long work tree scanning times might want to set the "dirty" option for those submodules. This brings back the pre 1.7.0 behavior, where submodule work trees were never scanned for modifications. By using "--ignore-submodules=none" on the command line the status and diff commands can be told to do a full scan. This option can be set to the following values (which have the same name and meaning as for the "--ignore-submodules" option of status and diff): "all": All changes to the submodule will be ignored. "dirty": Only differences of the commit recorded in the superproject and the submodules HEAD will be considered modifications, all changes to the work tree of the submodule will be ignored. When using this value, the submodule will not be scanned for work tree changes at all, leading to a performance benefit on large submodules. "untracked": Only untracked files in the submodules work tree are ignored, a changed HEAD and/or modified files in the submodule will mark it as modified. "none" (which is the default): Either untracked or modified files in a submodules work tree or a difference between the subdmodules HEAD and the commit recorded in the superproject will make it show up as changed. This value is added as a new parameter for the "--ignore-submodules" option of the diff family and "git status" so the user can override the settings in the configuration. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>