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diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt new file mode 100644 index 0000000000..bb31f0c42b --- /dev/null +++ b/Documentation/diff-options.txt @@ -0,0 +1,756 @@ +// Please don't remove this comment as asciidoc behaves badly when +// the first non-empty line is ifdef/ifndef. The symptom is that +// without this comment the <git-diff-core> attribute conditionally +// defined below ends up being defined unconditionally. +// Last checked with asciidoc 7.0.2. + +ifndef::git-format-patch[] +ifndef::git-diff[] +ifndef::git-log[] +:git-diff-core: 1 +endif::git-log[] +endif::git-diff[] +endif::git-format-patch[] + +ifdef::git-format-patch[] +-p:: +--no-stat:: + Generate plain patches without any diffstats. +endif::git-format-patch[] + +ifndef::git-format-patch[] +-p:: +-u:: +--patch:: + Generate patch (see section on generating patches). +ifdef::git-diff[] + This is the default. +endif::git-diff[] + +-s:: +--no-patch:: + Suppress diff output. Useful for commands like `git show` that + show the patch by default, or to cancel the effect of `--patch`. +endif::git-format-patch[] + +-U<n>:: +--unified=<n>:: + Generate diffs with <n> lines of context instead of + the usual three. Implies `--patch`. +ifndef::git-format-patch[] + Implies `-p`. +endif::git-format-patch[] + +--output=<file>:: + Output to a specific file instead of stdout. + +--output-indicator-new=<char>:: +--output-indicator-old=<char>:: +--output-indicator-context=<char>:: + Specify the character used to indicate new, old or context + lines in the generated patch. Normally they are '+', '-' and + ' ' respectively. + +ifndef::git-format-patch[] +--raw:: +ifndef::git-log[] + Generate the diff in raw format. +ifdef::git-diff-core[] + This is the default. +endif::git-diff-core[] +endif::git-log[] +ifdef::git-log[] + For each commit, show a summary of changes using the raw diff + format. See the "RAW OUTPUT FORMAT" section of + linkgit:git-diff[1]. This is different from showing the log + itself in raw format, which you can achieve with + `--format=raw`. +endif::git-log[] +endif::git-format-patch[] + +ifndef::git-format-patch[] +--patch-with-raw:: + Synonym for `-p --raw`. +endif::git-format-patch[] + +--indent-heuristic:: + Enable the heuristic that shifts diff hunk boundaries to make patches + easier to read. This is the default. + +--no-indent-heuristic:: + Disable the indent heuristic. + +--minimal:: + Spend extra time to make sure the smallest possible + diff is produced. + +--patience:: + Generate a diff using the "patience diff" algorithm. + +--histogram:: + Generate a diff using the "histogram diff" algorithm. + +--anchored=<text>:: + Generate a diff using the "anchored diff" algorithm. ++ +This option may be specified more than once. ++ +If a line exists in both the source and destination, exists only once, +and starts with this text, this algorithm attempts to prevent it from +appearing as a deletion or addition in the output. It uses the "patience +diff" algorithm internally. + +--diff-algorithm={patience|minimal|histogram|myers}:: + Choose a diff algorithm. The variants are as follows: ++ +-- +`default`, `myers`;; + The basic greedy diff algorithm. Currently, this is the default. +`minimal`;; + Spend extra time to make sure the smallest possible diff is + produced. +`patience`;; + Use "patience diff" algorithm when generating patches. +`histogram`;; + This algorithm extends the patience algorithm to "support + low-occurrence common elements". +-- ++ +For instance, if you configured the `diff.algorithm` variable to a +non-default value and want to use the default one, then you +have to use `--diff-algorithm=default` option. + +--stat[=<width>[,<name-width>[,<count>]]]:: + Generate a diffstat. By default, as much space as necessary + will be used for the filename part, and the rest for the graph + part. Maximum width defaults to terminal width, or 80 columns + if not connected to a terminal, and can be overridden by + `<width>`. The width of the filename part can be limited by + giving another width `<name-width>` after a comma. The width + of the graph part can be limited by using + `--stat-graph-width=<width>` (affects all commands generating + a stat graph) or by setting `diff.statGraphWidth=<width>` + (does not affect `git format-patch`). + By giving a third parameter `<count>`, you can limit the + output to the first `<count>` lines, followed by `...` if + there are more. ++ +These parameters can also be set individually with `--stat-width=<width>`, +`--stat-name-width=<name-width>` and `--stat-count=<count>`. + +--compact-summary:: + Output a condensed summary of extended header information such + as file creations or deletions ("new" or "gone", optionally "+l" + if it's a symlink) and mode changes ("+x" or "-x" for adding + or removing executable bit respectively) in diffstat. The + information is put between the filename part and the graph + part. Implies `--stat`. + +--numstat:: + Similar to `--stat`, but shows number of added and + deleted lines in decimal notation and pathname without + abbreviation, to make it more machine friendly. For + binary files, outputs two `-` instead of saying + `0 0`. + +--shortstat:: + Output only the last line of the `--stat` format containing total + number of modified files, as well as number of added and deleted + lines. + +-X[<param1,param2,...>]:: +--dirstat[=<param1,param2,...>]:: + Output the distribution of relative amount of changes for each + sub-directory. The behavior of `--dirstat` can be customized by + passing it a comma separated list of parameters. + The defaults are controlled by the `diff.dirstat` configuration + variable (see linkgit:git-config[1]). + The following parameters are available: ++ +-- +`changes`;; + Compute the dirstat numbers by counting the lines that have been + removed from the source, or added to the destination. This ignores + the amount of pure code movements within a file. In other words, + rearranging lines in a file is not counted as much as other changes. + This is the default behavior when no parameter is given. +`lines`;; + Compute the dirstat numbers by doing the regular line-based diff + analysis, and summing the removed/added line counts. (For binary + files, count 64-byte chunks instead, since binary files have no + natural concept of lines). This is a more expensive `--dirstat` + behavior than the `changes` behavior, but it does count rearranged + lines within a file as much as other changes. The resulting output + is consistent with what you get from the other `--*stat` options. +`files`;; + Compute the dirstat numbers by counting the number of files changed. + Each changed file counts equally in the dirstat analysis. This is + the computationally cheapest `--dirstat` behavior, since it does + not have to look at the file contents at all. +`cumulative`;; + Count changes in a child directory for the parent directory as well. + Note that when using `cumulative`, the sum of the percentages + reported may exceed 100%. The default (non-cumulative) behavior can + be specified with the `noncumulative` parameter. +<limit>;; + An integer parameter specifies a cut-off percent (3% by default). + Directories contributing less than this percentage of the changes + are not shown in the output. +-- ++ +Example: The following will count changed files, while ignoring +directories with less than 10% of the total amount of changed files, +and accumulating child directory counts in the parent directories: +`--dirstat=files,10,cumulative`. + +--cumulative:: + Synonym for --dirstat=cumulative + +--dirstat-by-file[=<param1,param2>...]:: + Synonym for --dirstat=files,param1,param2... + +--summary:: + Output a condensed summary of extended header information + such as creations, renames and mode changes. + +ifndef::git-format-patch[] +--patch-with-stat:: + Synonym for `-p --stat`. +endif::git-format-patch[] + +ifndef::git-format-patch[] + +-z:: +ifdef::git-log[] + Separate the commits with NULs instead of with new newlines. ++ +Also, when `--raw` or `--numstat` has been given, do not munge +pathnames and use NULs as output field terminators. +endif::git-log[] +ifndef::git-log[] + When `--raw`, `--numstat`, `--name-only` or `--name-status` has been + given, do not munge pathnames and use NULs as output field terminators. +endif::git-log[] ++ +Without this option, pathnames with "unusual" characters are quoted as +explained for the configuration variable `core.quotePath` (see +linkgit:git-config[1]). + +--name-only:: + Show only names of changed files. + +--name-status:: + Show only names and status of changed files. See the description + of the `--diff-filter` option on what the status letters mean. + +--submodule[=<format>]:: + Specify how differences in submodules are shown. When specifying + `--submodule=short` the 'short' format is used. This format just + shows the names of the commits at the beginning and end of the range. + When `--submodule` or `--submodule=log` is specified, the 'log' + format is used. This format lists the commits in the range like + linkgit:git-submodule[1] `summary` does. When `--submodule=diff` + is specified, the 'diff' format is used. This format shows an + inline diff of the changes in the submodule contents between the + commit range. Defaults to `diff.submodule` or the 'short' format + if the config option is unset. + +--color[=<when>]:: + Show colored diff. + `--color` (i.e. without '=<when>') is the same as `--color=always`. + '<when>' can be one of `always`, `never`, or `auto`. +ifdef::git-diff[] + It can be changed by the `color.ui` and `color.diff` + configuration settings. +endif::git-diff[] + +--no-color:: + Turn off colored diff. +ifdef::git-diff[] + This can be used to override configuration settings. +endif::git-diff[] + It is the same as `--color=never`. + +--color-moved[=<mode>]:: + Moved lines of code are colored differently. +ifdef::git-diff[] + It can be changed by the `diff.colorMoved` configuration setting. +endif::git-diff[] + The <mode> defaults to 'no' if the option is not given + and to 'zebra' if the option with no mode is given. + The mode must be one of: ++ +-- +no:: + Moved lines are not highlighted. +default:: + Is a synonym for `zebra`. This may change to a more sensible mode + in the future. +plain:: + Any line that is added in one location and was removed + in another location will be colored with 'color.diff.newMoved'. + Similarly 'color.diff.oldMoved' will be used for removed lines + that are added somewhere else in the diff. This mode picks up any + moved line, but it is not very useful in a review to determine + if a block of code was moved without permutation. +blocks:: + Blocks of moved text of at least 20 alphanumeric characters + are detected greedily. The detected blocks are + painted using either the 'color.diff.{old,new}Moved' color. + Adjacent blocks cannot be told apart. +zebra:: + Blocks of moved text are detected as in 'blocks' mode. The blocks + are painted using either the 'color.diff.{old,new}Moved' color or + 'color.diff.{old,new}MovedAlternative'. The change between + the two colors indicates that a new block was detected. +dimmed-zebra:: + Similar to 'zebra', but additional dimming of uninteresting parts + of moved code is performed. The bordering lines of two adjacent + blocks are considered interesting, the rest is uninteresting. + `dimmed_zebra` is a deprecated synonym. +-- + +--no-color-moved:: + Turn off move detection. This can be used to override configuration + settings. It is the same as `--color-moved=no`. + +--color-moved-ws=<modes>:: + This configures how whitespace is ignored when performing the + move detection for `--color-moved`. +ifdef::git-diff[] + It can be set by the `diff.colorMovedWS` configuration setting. +endif::git-diff[] + These modes can be given as a comma separated list: ++ +-- +no:: + Do not ignore whitespace when performing move detection. +ignore-space-at-eol:: + Ignore changes in whitespace at EOL. +ignore-space-change:: + Ignore changes in amount of whitespace. This ignores whitespace + at line end, and considers all other sequences of one or + more whitespace characters to be equivalent. +ignore-all-space:: + Ignore whitespace when comparing lines. This ignores differences + even if one line has whitespace where the other line has none. +allow-indentation-change:: + Initially ignore any whitespace in the move detection, then + group the moved code blocks only into a block if the change in + whitespace is the same per line. This is incompatible with the + other modes. +-- + +--no-color-moved-ws:: + Do not ignore whitespace when performing move detection. This can be + used to override configuration settings. It is the same as + `--color-moved-ws=no`. + +--word-diff[=<mode>]:: + Show a word diff, using the <mode> to delimit changed words. + By default, words are delimited by whitespace; see + `--word-diff-regex` below. The <mode> defaults to 'plain', and + must be one of: ++ +-- +color:: + Highlight changed words using only colors. Implies `--color`. +plain:: + Show words as `[-removed-]` and `{+added+}`. Makes no + attempts to escape the delimiters if they appear in the input, + so the output may be ambiguous. +porcelain:: + Use a special line-based format intended for script + consumption. Added/removed/unchanged runs are printed in the + usual unified diff format, starting with a `+`/`-`/` ` + character at the beginning of the line and extending to the + end of the line. Newlines in the input are represented by a + tilde `~` on a line of its own. +none:: + Disable word diff again. +-- ++ +Note that despite the name of the first mode, color is used to +highlight the changed parts in all modes if enabled. + +--word-diff-regex=<regex>:: + Use <regex> to decide what a word is, instead of considering + runs of non-whitespace to be a word. Also implies + `--word-diff` unless it was already enabled. ++ +Every non-overlapping match of the +<regex> is considered a word. Anything between these matches is +considered whitespace and ignored(!) for the purposes of finding +differences. You may want to append `|[^[:space:]]` to your regular +expression to make sure that it matches all non-whitespace characters. +A match that contains a newline is silently truncated(!) at the +newline. ++ +For example, `--word-diff-regex=.` will treat each character as a word +and, correspondingly, show differences character by character. ++ +The regex can also be set via a diff driver or configuration option, see +linkgit:gitattributes[5] or linkgit:git-config[1]. Giving it explicitly +overrides any diff driver or configuration setting. Diff drivers +override configuration settings. + +--color-words[=<regex>]:: + Equivalent to `--word-diff=color` plus (if a regex was + specified) `--word-diff-regex=<regex>`. +endif::git-format-patch[] + +--no-renames:: + Turn off rename detection, even when the configuration + file gives the default to do so. + +--[no-]rename-empty:: + Whether to use empty blobs as rename source. + +ifndef::git-format-patch[] +--check:: + Warn if changes introduce conflict markers or whitespace errors. + What are considered whitespace errors is controlled by `core.whitespace` + configuration. By default, trailing whitespaces (including + lines that consist solely of whitespaces) and a space character + that is immediately followed by a tab character inside the + initial indent of the line are considered whitespace errors. + Exits with non-zero status if problems are found. Not compatible + with --exit-code. + +--ws-error-highlight=<kind>:: + Highlight whitespace errors in the `context`, `old` or `new` + lines of the diff. Multiple values are separated by comma, + `none` resets previous values, `default` reset the list to + `new` and `all` is a shorthand for `old,new,context`. When + this option is not given, and the configuration variable + `diff.wsErrorHighlight` is not set, only whitespace errors in + `new` lines are highlighted. The whitespace errors are colored + with `color.diff.whitespace`. + +endif::git-format-patch[] + +--full-index:: + Instead of the first handful of characters, show the full + pre- and post-image blob object names on the "index" + line when generating patch format output. + +--binary:: + In addition to `--full-index`, output a binary diff that + can be applied with `git-apply`. Implies `--patch`. + +--abbrev[=<n>]:: + Instead of showing the full 40-byte hexadecimal object + name in diff-raw format output and diff-tree header + lines, show only a partial prefix. This is + independent of the `--full-index` option above, which controls + the diff-patch output format. Non default number of + digits can be specified with `--abbrev=<n>`. + +-B[<n>][/<m>]:: +--break-rewrites[=[<n>][/<m>]]:: + Break complete rewrite changes into pairs of delete and + create. This serves two purposes: ++ +It affects the way a change that amounts to a total rewrite of a file +not as a series of deletion and insertion mixed together with a very +few lines that happen to match textually as the context, but as a +single deletion of everything old followed by a single insertion of +everything new, and the number `m` controls this aspect of the -B +option (defaults to 60%). `-B/70%` specifies that less than 30% of the +original should remain in the result for Git to consider it a total +rewrite (i.e. otherwise the resulting patch will be a series of +deletion and insertion mixed together with context lines). ++ +When used with -M, a totally-rewritten file is also considered as the +source of a rename (usually -M only considers a file that disappeared +as the source of a rename), and the number `n` controls this aspect of +the -B option (defaults to 50%). `-B20%` specifies that a change with +addition and deletion compared to 20% or more of the file's size are +eligible for being picked up as a possible source of a rename to +another file. + +-M[<n>]:: +--find-renames[=<n>]:: +ifndef::git-log[] + Detect renames. +endif::git-log[] +ifdef::git-log[] + If generating diffs, detect and report renames for each commit. + For following files across renames while traversing history, see + `--follow`. +endif::git-log[] + If `n` is specified, it is a threshold on the similarity + index (i.e. amount of addition/deletions compared to the + file's size). For example, `-M90%` means Git should consider a + delete/add pair to be a rename if more than 90% of the file + hasn't changed. Without a `%` sign, the number is to be read as + a fraction, with a decimal point before it. I.e., `-M5` becomes + 0.5, and is thus the same as `-M50%`. Similarly, `-M05` is + the same as `-M5%`. To limit detection to exact renames, use + `-M100%`. The default similarity index is 50%. + +-C[<n>]:: +--find-copies[=<n>]:: + Detect copies as well as renames. See also `--find-copies-harder`. + If `n` is specified, it has the same meaning as for `-M<n>`. + +--find-copies-harder:: + For performance reasons, by default, `-C` option finds copies only + if the original file of the copy was modified in the same + changeset. This flag makes the command + inspect unmodified files as candidates for the source of + copy. This is a very expensive operation for large + projects, so use it with caution. Giving more than one + `-C` option has the same effect. + +-D:: +--irreversible-delete:: + Omit the preimage for deletes, i.e. print only the header but not + the diff between the preimage and `/dev/null`. The resulting patch + is not meant to be applied with `patch` or `git apply`; this is + solely for people who want to just concentrate on reviewing the + text after the change. In addition, the output obviously lacks + enough information to apply such a patch in reverse, even manually, + hence the name of the option. ++ +When used together with `-B`, omit also the preimage in the deletion part +of a delete/create pair. + +-l<num>:: + The `-M` and `-C` options require O(n^2) processing time where n + is the number of potential rename/copy targets. This + option prevents rename/copy detection from running if + the number of rename/copy targets exceeds the specified + number. + +ifndef::git-format-patch[] +--diff-filter=[(A|C|D|M|R|T|U|X|B)...[*]]:: + Select only files that are Added (`A`), Copied (`C`), + Deleted (`D`), Modified (`M`), Renamed (`R`), have their + type (i.e. regular file, symlink, submodule, ...) changed (`T`), + are Unmerged (`U`), are + Unknown (`X`), or have had their pairing Broken (`B`). + Any combination of the filter characters (including none) can be used. + When `*` (All-or-none) is added to the combination, all + paths are selected if there is any file that matches + other criteria in the comparison; if there is no file + that matches other criteria, nothing is selected. ++ +Also, these upper-case letters can be downcased to exclude. E.g. +`--diff-filter=ad` excludes added and deleted paths. ++ +Note that not all diffs can feature all types. For instance, diffs +from the index to the working tree can never have Added entries +(because the set of paths included in the diff is limited by what is in +the index). Similarly, copied and renamed entries cannot appear if +detection for those types is disabled. + +-S<string>:: + Look for differences that change the number of occurrences of + the specified string (i.e. addition/deletion) in a file. + Intended for the scripter's use. ++ +It is useful when you're looking for an exact block of code (like a +struct), and want to know the history of that block since it first +came into being: use the feature iteratively to feed the interesting +block in the preimage back into `-S`, and keep going until you get the +very first version of the block. ++ +Binary files are searched as well. + +-G<regex>:: + Look for differences whose patch text contains added/removed + lines that match <regex>. ++ +To illustrate the difference between `-S<regex> --pickaxe-regex` and +`-G<regex>`, consider a commit with the following diff in the same +file: ++ +---- ++ return frotz(nitfol, two->ptr, 1, 0); +... +- hit = frotz(nitfol, mf2.ptr, 1, 0); +---- ++ +While `git log -G"frotz\(nitfol"` will show this commit, `git log +-S"frotz\(nitfol" --pickaxe-regex` will not (because the number of +occurrences of that string did not change). ++ +Unless `--text` is supplied patches of binary files without a textconv +filter will be ignored. ++ +See the 'pickaxe' entry in linkgit:gitdiffcore[7] for more +information. + +--find-object=<object-id>:: + Look for differences that change the number of occurrences of + the specified object. Similar to `-S`, just the argument is different + in that it doesn't search for a specific string but for a specific + object id. ++ +The object can be a blob or a submodule commit. It implies the `-t` option in +`git-log` to also find trees. + +--pickaxe-all:: + When `-S` or `-G` finds a change, show all the changes in that + changeset, not just the files that contain the change + in <string>. + +--pickaxe-regex:: + Treat the <string> given to `-S` as an extended POSIX regular + expression to match. + +endif::git-format-patch[] + +-O<orderfile>:: + Control the order in which files appear in the output. + This overrides the `diff.orderFile` configuration variable + (see linkgit:git-config[1]). To cancel `diff.orderFile`, + use `-O/dev/null`. ++ +The output order is determined by the order of glob patterns in +<orderfile>. +All files with pathnames that match the first pattern are output +first, all files with pathnames that match the second pattern (but not +the first) are output next, and so on. +All files with pathnames that do not match any pattern are output +last, as if there was an implicit match-all pattern at the end of the +file. +If multiple pathnames have the same rank (they match the same pattern +but no earlier patterns), their output order relative to each other is +the normal order. ++ +<orderfile> is parsed as follows: ++ +-- + - Blank lines are ignored, so they can be used as separators for + readability. + + - Lines starting with a hash ("`#`") are ignored, so they can be used + for comments. Add a backslash ("`\`") to the beginning of the + pattern if it starts with a hash. + + - Each other line contains a single pattern. +-- ++ +Patterns have the same syntax and semantics as patterns used for +fnmatch(3) without the FNM_PATHNAME flag, except a pathname also +matches a pattern if removing any number of the final pathname +components matches the pattern. For example, the pattern "`foo*bar`" +matches "`fooasdfbar`" and "`foo/bar/baz/asdf`" but not "`foobarx`". + +ifndef::git-format-patch[] +-R:: + Swap two inputs; that is, show differences from index or + on-disk file to tree contents. + +--relative[=<path>]:: + When run from a subdirectory of the project, it can be + told to exclude changes outside the directory and show + pathnames relative to it with this option. When you are + not in a subdirectory (e.g. in a bare repository), you + can name which subdirectory to make the output relative + to by giving a <path> as an argument. +endif::git-format-patch[] + +-a:: +--text:: + Treat all files as text. + +--ignore-cr-at-eol:: + Ignore carriage-return at the end of line when doing a comparison. + +--ignore-space-at-eol:: + Ignore changes in whitespace at EOL. + +-b:: +--ignore-space-change:: + Ignore changes in amount of whitespace. This ignores whitespace + at line end, and considers all other sequences of one or + more whitespace characters to be equivalent. + +-w:: +--ignore-all-space:: + Ignore whitespace when comparing lines. This ignores + differences even if one line has whitespace where the other + line has none. + +--ignore-blank-lines:: + Ignore changes whose lines are all blank. + +--inter-hunk-context=<lines>:: + Show the context between diff hunks, up to the specified number + of lines, thereby fusing hunks that are close to each other. + Defaults to `diff.interHunkContext` or 0 if the config option + is unset. + +-W:: +--function-context:: + Show whole surrounding functions of changes. + +ifndef::git-format-patch[] +ifndef::git-log[] +--exit-code:: + Make the program exit with codes similar to diff(1). + That is, it exits with 1 if there were differences and + 0 means no differences. + +--quiet:: + Disable all output of the program. Implies `--exit-code`. +endif::git-log[] +endif::git-format-patch[] + +--ext-diff:: + Allow an external diff helper to be executed. If you set an + external diff driver with linkgit:gitattributes[5], you need + to use this option with linkgit:git-log[1] and friends. + +--no-ext-diff:: + Disallow external diff drivers. + +--textconv:: +--no-textconv:: + Allow (or disallow) external text conversion filters to be run + when comparing binary files. See linkgit:gitattributes[5] for + details. Because textconv filters are typically a one-way + conversion, the resulting diff is suitable for human + consumption, but cannot be applied. For this reason, textconv + filters are enabled by default only for linkgit:git-diff[1] and + linkgit:git-log[1], but not for linkgit:git-format-patch[1] or + diff plumbing commands. + +--ignore-submodules[=<when>]:: + Ignore changes to submodules in the diff generation. <when> can be + either "none", "untracked", "dirty" or "all", which is the default. + Using "none" will consider the submodule modified when it either contains + untracked or modified files or its HEAD differs from the commit recorded + in the superproject and can be used to override any settings of the + 'ignore' option in linkgit:git-config[1] or linkgit:gitmodules[5]. When + "untracked" is used submodules are not considered dirty when they only + contain untracked content (but they are still scanned for modified + content). Using "dirty" ignores all changes to the work tree of submodules, + only changes to the commits stored in the superproject are shown (this was + the behavior until 1.7.0). Using "all" hides all changes to submodules. + +--src-prefix=<prefix>:: + Show the given source prefix instead of "a/". + +--dst-prefix=<prefix>:: + Show the given destination prefix instead of "b/". + +--no-prefix:: + Do not show any source or destination prefix. + +--line-prefix=<prefix>:: + Prepend an additional prefix to every line of output. + +--ita-invisible-in-index:: + By default entries added by "git add -N" appear as an existing + empty file in "git diff" and a new file in "git diff --cached". + This option makes the entry appear as a new file in "git diff" + and non-existent in "git diff --cached". This option could be + reverted with `--ita-visible-in-index`. Both options are + experimental and could be removed in future. + +For more detailed explanation on these common options, see also +linkgit:gitdiffcore[7]. |