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2021-02-24blame-options.txt: camelcase blame.blankBoundaryLibravatar Junio C Hamano1-1/+1
All other references to blame.* configuration variables are camelCased already. Update this one to match. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01blame-options.txt: also mention 'funcname' in '-L' descriptionLibravatar Philippe Blain1-2/+3
Make it clearer that a function can be blamed by feeding `git blame` '-L :<funcname>' by mentioning it at the beginnning of the description of the '-L' option. Also, in 'line-range-options.txt', which is used for git-log(1) and gitk(1), do not parenthesize the mention of the ':<funcname>' mode, to place it on equal footing with the '<start>,<end>' mode. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01doc: line-range: improve formattingLibravatar Philippe Blain1-2/+2
Improve the formatting of the description of the line-range option '-L' for `git log`, `gitk` and `git blame`: - Use bold for <start>, <end> and <funcname> - Use backticks for literals Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-06blame-options.txt: document --first-parent optionLibravatar Raymond E. Pasco1-0/+6
blame/annotate have supported --first-parent since commit 95a4fb0eac ("blame: handle --first-parent"). This adds a blurb on that option to the documentation. Signed-off-by: Raymond E. Pasco <ray@ameretat.dev> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-16blame: add config options for the output of ignored or unblamable linesLibravatar Barret Rhoden1-1/+6
When ignoring commits, the commit that is blamed might not be responsible for the change, due to the inaccuracy of our heuristic. Users might want to know when a particular line has a potentially inaccurate blame. Furthermore, guess_line_blames() may fail to find any parent commit for a given line touched by an ignored commit. Those 'unblamable' lines remain blamed on an ignored commit. Users might want to know if a line is unblamable so that they do not spend time investigating a commit they know is uninteresting. This patch adds two config options to mark these two types of lines in the output of blame. The first option can identify ignored lines by specifying blame.markIgnoredLines. When this option is set, each blame line that was blamed on a commit other than the ignored commit is marked with a '?'. For example: 278b6158d6fdb (Barret Rhoden 2016-04-11 13:57:54 -0400 26) appears as: ?278b6158d6fd (Barret Rhoden 2016-04-11 13:57:54 -0400 26) where the '?' is placed before the commit, and the hash has one fewer characters. Sometimes we are unable to even guess at what ancestor commit touched a line. These lines are 'unblamable.' The second option, blame.markUnblamableLines, will mark the line with '*'. For example, say we ignore e5e8d36d04cbe, yet we are unable to blame this line on another commit: e5e8d36d04cbe (Barret Rhoden 2016-04-11 13:57:54 -0400 26) appears as: *e5e8d36d04cb (Barret Rhoden 2016-04-11 13:57:54 -0400 26) When these config options are used together, every line touched by an ignored commit will be marked with either a '?' or a '*'. Signed-off-by: Barret Rhoden <brho@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-16blame: add the ability to ignore commits and their changesLibravatar Barret Rhoden1-0/+14
Commits that make formatting changes or function renames are often not interesting when blaming a file. A user may deem such a commit as 'not interesting' and want to ignore and its changes it when assigning blame. For example, say a file has the following git history / rev-list: ---O---A---X---B---C---D---Y---E---F Commits X and Y both touch a particular line, and the other commits do not: X: "Take a third parameter" -MyFunc(1, 2); +MyFunc(1, 2, 3); Y: "Remove camelcase" -MyFunc(1, 2, 3); +my_func(1, 2, 3); git-blame will blame Y for the change. I'd like to be able to ignore Y: both the existence of the commit as well as any changes it made. This differs from -S rev-list, which specifies the list of commits to process for the blame. We would still process Y, but just don't let the blame 'stick.' This patch adds the ability for users to ignore a revision with --ignore-rev=rev, which may be repeated. They can specify a set of files of full object names of revs, e.g. SHA-1 hashes, one per line. A single file may be specified with the blame.ignoreRevFile config option or with --ignore-rev-file=file. Both the config option and the command line option may be repeated multiple times. An empty file name "" will clear the list of revs from previously processed files. Config options are processed before command line options. For a typical use case, projects will maintain the file containing revisions for commits that perform mass reformatting, and their users have the option to ignore all of the commits in that file. Additionally, a user can use the --ignore-rev option for one-off investigation. To go back to the example above, X was a substantive change to the function, but not the change the user is interested in. The user inspected X, but wanted to find the previous change to that line - perhaps a commit that introduced that function call. To make this work, we can't simply remove all ignored commits from the rev-list. We need to diff the changes introduced by Y so that we can ignore them. We let the blames get passed to Y, just like when processing normally. When Y is the target, we make sure that Y does not *keep* any blames. Any changes that Y is responsible for get passed to its parent. Note we make one pass through all of the scapegoats (parents) to attempt to pass blame normally; we don't know if we *need* to ignore the commit until we've checked all of the parents. The blame_entry will get passed up the tree until we find a commit that has a diff chunk that affects those lines. One issue is that the ignored commit *did* make some change, and there is no general solution to finding the line in the parent commit that corresponds to a given line in the ignored commit. That makes it hard to attribute a particular line within an ignored commit's diff correctly. For example, the parent of an ignored commit has this, say at line 11: commit-a 11) #include "a.h" commit-b 12) #include "b.h" Commit X, which we will ignore, swaps these lines: commit-X 11) #include "b.h" commit-X 12) #include "a.h" We can pass that blame entry to the parent, but line 11 will be attributed to commit A, even though "include b.h" came from commit B. The blame mechanism will be looking at the parent's view of the file at line number 11. ignore_blame_entry() is set up to allow alternative algorithms for guessing per-line blames. Any line that is not attributed to the parent will continue to be blamed on the ignored commit as if that commit was not ignored. Upcoming patches have the ability to detect these lines and mark them in the blame output. The existing algorithm is simple: blame each line on the corresponding line in the parent's diff chunk. Any lines beyond that stay with the target. For example, the parent of an ignored commit has this, say at line 11: commit-a 11) void new_func_1(void *x, void *y); commit-b 12) void new_func_2(void *x, void *y); commit-c 13) some_line_c commit-d 14) some_line_d After a commit 'X', we have: commit-X 11) void new_func_1(void *x, commit-X 12) void *y); commit-X 13) void new_func_2(void *x, commit-X 14) void *y); commit-c 15) some_line_c commit-d 16) some_line_d Commit X nets two additionally lines: 13 and 14. The current guess_line_blames() algorithm will not attribute these to the parent, whose diff chunk is only two lines - not four. When we ignore with the current algorithm, we get: commit-a 11) void new_func_1(void *x, commit-b 12) void *y); commit-X 13) void new_func_2(void *x, commit-X 14) void *y); commit-c 15) some_line_c commit-d 16) some_line_d Note that line 12 was blamed on B, though B was the commit for new_func_2(), not new_func_1(). Even when guess_line_blames() finds a line in the parent, it may still be incorrect. Signed-off-by: Barret Rhoden <brho@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-24Merge branch 'bc/blame-doc-fix'Libravatar Junio C Hamano1-2/+2
Doc update. * bc/blame-doc-fix: Documentation: use brackets for optional arguments
2017-02-22Documentation: use brackets for optional argumentsLibravatar brian m. carlson1-2/+2
The documentation for git blame used vertical bars for optional arguments to -M and -C, which is unusual and potentially confusing. Since most man pages use brackets for optional items, and that's consistent with how we document the same options for git diff and friends, use brackets here, too. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-14blame: dwim "blame --reverse OLD" as "blame --reverse OLD.."Libravatar Junio C Hamano1-2/+3
Instead of always requiring both ends of a range, we could DWIM "OLD", which could be a misspelt "OLD..", to be a range that ends at the current commit. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-12Merge branch 'ea/blame-progress'Libravatar Junio C Hamano1-0/+7
"git blame" learned to produce the progress eye-candy when it takes too much time before emitting the first line of the result. * ea/blame-progress: blame: add support for --[no-]progress option
2015-12-16blame: add support for --[no-]progress optionLibravatar Edmundo Carmona Antoranz1-0/+7
Teach the command to show progress output when it takes long time to produce the first line of output; this option cannot be used with "--incremental" or "--porcelain" options. git-annotate inherits the option as well. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Edmundo Carmona Antoranz <eantoranz@gmail.com> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-03Documentation/blame-options: don't list date formatsLibravatar John Keeping1-3/+2
This list is already incomplete (missing "raw") and we're about to add new formats. Remove it and refer to the canonical documentation in git-log(1). Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-05Merge branch 'mm/usage-log-l-can-take-regex'Libravatar Junio C Hamano1-1/+1
Documentation fix. * mm/usage-log-l-can-take-regex: log -L: improve error message on malformed argument Documentation: change -L:<regex> to -L:<funcname>
2015-04-20Documentation: change -L:<regex> to -L:<funcname>Libravatar Matthieu Moy1-1/+1
The old wording was somehow implying that <start> and <end> were not regular expressions. Also, the common case is to use a plain function name here so <funcname> makes sense (the fact that it is a regular expression is documented in line-range-format.txt). Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13*config.txt: stick to camelCase naming conventionLibravatar Nguyễn Thái Ngọc Duy1-1/+1
This should improve readability. Compare "thislongname" and "thisLongName". The following keys are left in unchanged. We can decide what to do with them later. - am.keepcr - core.autocrlf .safecrlf .trustctime - diff.dirstat .noprefix - gitcvs.usecrlfattr - gui.blamehistoryctx .trustmtime - pull.twohead - receive.autogc - sendemail.signedoffbycc .smtpsslcertpath .suppresscc Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-06blame: document multiple -L supportLibravatar Eric Sunshine1-3/+5
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-06line-range-format.txt: clarify -L:regex usage formLibravatar Eric Sunshine1-2/+0
blame/log documentation describes -L option as: -L<start>,<end> -L:<regex> <start> and <end> can take one of these forms: * number * /regex/ * +offset or -offset * :regex which is incorrect and confusing since :regex is not one of the valid forms of <start> or <end>; in fact, it must be -L's lone argument. Clarify by discussing :<regex> at the same indentation level as "<start> and <end>...": -L<start>,<end> -L:<regex> <start> and <end> can take one of these forms: * number * /regex/ * +offset or -offset If :<regex> is given in place of <start> and <end> ... Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-17blame-options.txt: explain that -L <start> and <end> are optionalLibravatar Eric Sunshine1-2/+5
The ability to omit either end of the -L range is a handy but undocumented shortcut, and is thus not easily discovered. Fix this shortcoming. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-17blame-options.txt: place each -L option variation on its own lineLibravatar Eric Sunshine1-1/+2
Standard practice in Git documentation is for each variation of an option (such as: -p / --porcelain) to be placed on its own line in the OPTIONS table. The -L option does not follow suit. It cuddles "-L <start>,<end>" and "-L :<regex>", separated by a comma. This is inconsistent and potentially confusing since the comma separating them is typeset the same as the comma in "<start>,<end>". Fix this by placing each variation on its own line. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28log -L: :pattern:file syntax to find by funcnameLibravatar Thomas Rast1-1/+1
This new syntax finds a funcname matching /pattern/, and then takes from there up to (but not including) the next funcname. So you can say git log -L:main:main.c and it will dig up the main() function and show its line-log, provided there are no other funcnames matching 'main'. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28Refactor parse_locLibravatar Bo Yang1-18/+1
We want to use the same style of -L n,m argument for 'git log -L' as for git-blame. Refactor the argument parsing of the range arguments from builtin/blame.c to the (new) file that will hold the 'git log -L' logic. To accommodate different data structures in blame and log -L, the file contents are abstracted away; parse_range_arg takes a callback that it uses to get the contents of a line of the (notional) file. The new test is for a case that made me pause during debugging: the 'blame -L with invalid end' test was the only one that noticed an outright failure to parse the end *at all*. So make a more explicit test for that. Signed-off-by: Bo Yang <struggleyb.nku@gmail.com> Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-01Documentation: the name of the system is 'Git', not 'git'Libravatar Thomas Ackermann1-2/+2
Signed-off-by: Thomas Ackermann <th.acker@arcor.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05use -h for synopsis and --help for manpage consistentlyLibravatar Clemens Buchacher1-1/+0
A few scripted Porcelain implementations pretend as if the routine to show their own help messages are triggered upon "git cmd --help", but a command line parser of "git" will hijack such a request and shows the manpage for the cmd subcommand. Leaving the code to handle such input is simply misleading. Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09blame: add --line-porcelain output formatLibravatar Jeff King1-0/+5
This is just like --porcelain, except that we always output the commit information for each line, not just the first time it is referenced. This can make quick and dirty scripts much easier to write; see the example added to the blame documentation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-07blame-options.txt: Add default value for `-M/-C` options.Libravatar Bo Yang1-4/+6
Both `-M` and `-C` have default values and the <num> argument the last `-C` option takes effect. Signed-off-by: Bo Yang <struggleyb.nku@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-11blame documentation: -M/-C notice copied lines as well as moved onesLibravatar Junio C Hamano1-9/+10
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-14Document git-blame triple -C optionLibravatar Ramkumar Ramachandra1-2/+4
Lift the explanation of -CCC option in the source to the documentation. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-21Merge branch 'dm/maint-docco'Libravatar Junio C Hamano1-1/+1
* dm/maint-docco: Documentation: reword example text in git-bisect.txt. Documentation: reworded the "Description" section of git-bisect.txt. Documentation: minor grammatical fixes in git-branch.txt. Documentation: minor grammatical fixes in git-blame.txt. Documentation: reword the "Description" section of git-bisect.txt. Documentation: minor grammatical fixes in git-archive.txt.
2009-03-17Documentation: minor grammatical fixes in git-blame.txt.Libravatar David J. Mellor1-1/+1
Signed-off-by: David J. Mellor <dmellor@whistlingcat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-11Merge branch 'el/blame-date'Libravatar Junio C Hamano1-0/+8
* el/blame-date: Make git blame's date output format configurable, like git log
2009-03-05Make git blame's date output format configurable, like git logLibravatar Eugene Letuchy1-0/+8
Add the following: - git config value blame.date that expects one of the git log date formats (e.g. relative,local,default,iso,...); - git blame command line option --date expects one of the git log date formats; - documentation in blame-options.txt; - git blame uses the appropriate date.c functions and enums to make sense of the date format and provide appropriate data; git blame continues to line up the output columns by padding the date column up to the max width of the chosen date format. The date format for git blame without both blame.date and --date continues to be ISO for backwards compatibility. git annotate ignores the date format specifiers and continues to uses the ISO format, as before. Signed-off-by: Eugene Letuchy <eugene@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-02Documentation: minor grammatical fixes.Libravatar David J. Mellor1-3/+3
Signed-off-by: David J. Mellor <dmellor@whistlingcat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-19Document git blame --reverse.Libravatar Matthieu Moy1-0/+7
This was introduced in 85af7929ee125385c2771fa4eaccfa2f29dc63c9 but not documented outside the commit message. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-21builtin-blame: Reencode commit messages according to git-log rules.Libravatar Alexander Gavrilov1-0/+7
Currently git-blame outputs text from the commit messages (e.g. the author name and the summary string) as-is, without even providing any information about the encoding used for the data. It makes interpreting the data in multilingual environment very difficult. This commit changes the blame implementation to recode the messages using the rules used by other commands like git-log. Namely, the target encoding can be specified through the i18n.commitEncoding or i18n.logOutputEncoding options, or directly on the command line using the --encoding parameter. Converting the encoding before output seems to be more friendly to the porcelain tools than simply providing the value of the encoding header, and does not require changing the output format. If anybody needs the old behavior, it is possible to achieve it by specifying --encoding=none. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-08Docs: Use "-l::\n--long\n" format in OPTIONS sectionsLibravatar Stephan Beyer1-2/+4
The OPTIONS section of a documentation file contains a list of the options a git command accepts. Currently there are several variants to describe the case that different options (almost) do the same in the OPTIONS section. Some are: -f, --foo:: -f|--foo:: -f | --foo:: But AsciiDoc has the special form: -f:: --foo:: This patch applies this form to the documentation of the whole git suite, and removes useless em-dash prevention, so \--foo becomes --foo. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-09Fix typo in 'blame' documentation.Libravatar Tim Stoakes1-1/+1
Signed-off-by: Tim Stoakes <tim@stoakes.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-06Documentation: rename gitlink macro to linkgitLibravatar Dan McGee1-1/+1
Between AsciiDoc 8.2.2 and 8.2.3, the following change was made to the stock Asciidoc configuration: @@ -149,7 +153,10 @@ # Inline macros. # Backslash prefix required for escape processing. # (?s) re flag for line spanning. -(?su)[\\]?(?P<name>\w(\w|-)*?):(?P<target>\S*?)(\[(?P<attrlist>.*?)\])= + +# Explicit so they can be nested. +(?su)[\\]?(?P<name>(http|https|ftp|file|mailto|callto|image|link)):(?P<target>\S*?)(\[(?P<attrlist>.*?)\])= + # Anchor: [[[id]]]. Bibliographic anchor. (?su)[\\]?\[\[\[(?P<attrlist>[\w][\w-]*?)\]\]\]=anchor3 # Anchor: [[id,xreflabel]] This default regex now matches explicit values, and unfortunately in this case gitlink was being matched by just 'link', causing the wrong inline macro template to be applied. By renaming the macro, we can avoid being matched by the wrong regex. Signed-off-by: Dan McGee <dpmcgee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-10Fix formatting of git-blame documentation.Libravatar Junio C Hamano1-10/+10
blame-options.txt did not format multi-paragraph option description correctly. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-04-26Update -L documentation for git-blame/git-annotateLibravatar Andrew Ruder1-2/+22
Documenting alternate ways to use -L: -L /regex/,end -L start,+offset Signed-off-by: Andrew Ruder <andy@aeruder.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-16Update git-annotate/git-blame documentationLibravatar Andrew Ruder1-0/+67
Moved options that pertained to both git-blame and git-annotate to a common file blame-options.txt. builtin-blame.c: Removed --compatibility, --long, --time from the short usage as they are not handled in the code. Documentation/git-blame.txt: Removed common options to git-annotate. Added documentation for --score-debug. Removed --compatibility. Adjusted usage at top to not wrap on 80 columns. Documentation/git-annotate.txt: Using common options blame-options.txt. Documentation/blame-options.txt: Added -b note about associated config option, added --root note about associated config option, added documentation for --show-stats. Removed --long, --time, --rev-file as those options do not really exist. Added documentation for -M/-C taking an optional score argument for detection of moved lines. Signed-off-by: Andrew Ruder <andy@aeruder.net> Signed-off-by: Junio C Hamano <junkio@cox.net>