refactor userdiff textconv code

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 60d0e53a78974a99af3178fb11745fdaa51fd6fe..c62b45cdbade990878b8e8e9371d41d4e3c43bfe 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -58,6 +58,16 @@ endif::git-format-patch[]
        number of modified files, as well as number of added and deleted
        lines.
 
+--dirstat[=limit]::
+       Output the distribution of relative amount of changes (number of lines added or
+       removed) for each sub-directory. Directories with changes below
+       a cut-off percent (3% by default) are not shown. The cut-off percent
+       can be set with "--dirstat=limit". Changes in a child directory is not
+       counted for the parent directory, unless "--cumulative" is used.
+
+--dirstat-by-file[=limit]::
+       Same as --dirstat, but counts changed files instead of lines.
+
 --summary::
        Output a condensed summary of extended header information
        such as creations, renames and mode changes.
@@ -99,9 +109,9 @@ endif::git-format-patch[]
        --exit-code.
 
 --full-index::
-       Instead of the first handful characters, show full
-       object name of pre- and post-image blob on the "index"
-       line when generating a patch format output.
+       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 "binary diff" that
@@ -127,7 +137,8 @@ endif::git-format-patch[]
 --diff-filter=[ACDMRTUXB*]::
        Select only files that are Added (`A`), Copied (`C`),
        Deleted (`D`), Modified (`M`), Renamed (`R`), have their
-       type (mode) changed (`T`), are Unmerged (`U`), are
+       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 may be used.
        When `*` (All-or-none) is added to the combination, all
@@ -171,6 +182,14 @@ endif::git-format-patch[]
        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.
+
 --text::
        Treat all files as text.
 
@@ -212,6 +231,9 @@ endif::git-format-patch[]
 --no-ext-diff::
        Disallow external diff drivers.
 
+--ignore-submodules::
+       Ignore changes to submodules in the diff generation.
+
 --src-prefix=<prefix>::
        Show the given source prefix instead of "a/".
 
@@ -222,4 +244,4 @@ endif::git-format-patch[]
        Do not show any source or destination prefix.
 
 For more detailed explanation on these common options, see also
-link:diffcore.html[diffcore documentation].
+linkgit:gitdiffcore[7].