SubmittingPatches: document how to reference previous commits

diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index 67a90a828c04b7277fc603c6518fd0ecd8247d32..6eaa45271c9ff2d1200e4299c3040d52952a2ec4 100644 (file)
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -1,4 +1,4 @@
-diff.autorefreshindex::
+diff.autoRefreshIndex::
        When using 'git diff' to compare with work tree
        files, do not consider stat-only change as changed.
        Instead, silently run `git update-index --refresh` to
@@ -56,6 +56,10 @@ diff.statGraphWidth::
        Limit the width of the graph part in --stat output. If set, applies
        to all commands generating --stat output except format-patch.
 
+diff.context::
+       Generate diffs with <n> lines of context instead of the default
+       of 3. This value is overridden by the -U option.
+
 diff.external::
        If this config variable is set, diff generation is not
        performed using the internal diff machinery, but using the
@@ -69,9 +73,13 @@ diff.ignoreSubmodules::
        Sets the default value of --ignore-submodules. Note that this
        affects only 'git diff' Porcelain, and not lower level 'diff'
        commands such as 'git diff-files'. 'git checkout' also honors
-       this setting when reporting uncommitted changes.
+       this setting when reporting uncommitted changes. Setting it to
+       'all' disables the submodule summary normally shown by 'git commit'
+       and 'git status' when 'status.submoduleSummary' is set unless it is
+       overridden by using the --ignore-submodules command-line option.
+       The 'git submodule' commands are not affected by this setting.
 
-diff.mnemonicprefix::
+diff.mnemonicPrefix::
        If set, 'git diff' uses a prefix pair that is different from the
        standard "a/" and "b/" depending on what is being compared.  When
        this configuration is in effect, reverse diff output also swaps
@@ -90,12 +98,17 @@ diff.mnemonicprefix::
 diff.noprefix::
        If set, 'git diff' does not show any source or destination prefix.
 
+diff.orderFile::
+       File indicating how to order files within a diff, using
+       one shell glob pattern per line.
+       Can be overridden by the '-O' option to linkgit:git-diff[1].
+
 diff.renameLimit::
        The number of files to consider when performing the copy/rename
        detection; equivalent to the 'git diff' option '-l'.
 
 diff.renames::
-       Tells git to detect renames.  If set to any boolean value, it
+       Tells Git to detect renames.  If set to any boolean value, it
        will enable basic rename detection.  If set to "copies" or
        "copy", it will detect copies, as well.
 
@@ -103,6 +116,19 @@ diff.suppressBlankEmpty::
        A boolean to inhibit the standard behavior of printing a space
        before each empty output line. Defaults to false.
 
+diff.submodule::
+       Specify the format in which differences in submodules are
+       shown.  The "log" format lists the commits in the range like
+       linkgit:git-submodule[1] `summary` does.  The "short" format
+       format just shows the names of the commits at the beginning
+       and end of the range.  Defaults to short.
+
+diff.wordRegex::
+       A POSIX Extended Regular Expression used to determine what is a "word"
+       when performing word-by-word difference calculations.  Character
+       sequences that match the regular expression are "words", all other
+       characters are *ignorable* whitespace.
+
 diff.<driver>.command::
        The custom diff driver command.  See linkgit:gitattributes[5]
        for details.
@@ -122,7 +148,7 @@ diff.<driver>.textconv::
        conversion is used to generate a human-readable diff.  See
        linkgit:gitattributes[5] for details.
 
-diff.<driver>.wordregex::
+diff.<driver>.wordRegex::
        The regular expression that the diff driver should use to
        split words in a line.  See linkgit:gitattributes[5] for
        details.
@@ -132,9 +158,27 @@ diff.<driver>.cachetextconv::
        conversion outputs.  See linkgit:gitattributes[5] for details.
 
 diff.tool::
-       The diff tool to be used by linkgit:git-difftool[1].  This
-       option overrides `merge.tool`, and has the same valid built-in
-       values as `merge.tool` minus "tortoisemerge" and plus
-       "kompare".  Any other value is treated as a custom diff tool,
-       and there must be a corresponding `difftool.<tool>.cmd`
-       option.
+       Controls which diff tool is used by linkgit:git-difftool[1].
+       This variable overrides the value configured in `merge.tool`.
+       The list below shows the valid built-in values.
+       Any other value is treated as a custom diff tool and requires
+       that a corresponding difftool.<tool>.cmd variable is defined.
+
+include::mergetools-diff.txt[]
+
+diff.algorithm::
+       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".
+--
++