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authorJunio C Hamano <gitster@pobox.com>2014-03-31 16:30:59 -0700
committerJunio C Hamano <gitster@pobox.com>2014-03-31 16:30:59 -0700
commit24b9cb100214adb0c5ebe574924c3acf6c61f214 (patch)
tree0abe244944a66189a96d18e5d0bf963288bc0b5f /Documentation
parenta79cbc1368505bc02639b1b423a1132324cb5853 (diff)
parentce7f8745aa773dfe2fc0a1b8c327b50c7ce4a31e (diff)
downloadgit-24b9cb100214adb0c5ebe574924c3acf6c61f214.tar.gz
git-24b9cb100214adb0c5ebe574924c3acf6c61f214.tar.xz
Merge branch 'ib/rev-parse-parseopt-argh'
Teaches the "rev-parse --parseopt" mechanism used by scripted Porcelains to parse command line options and give help text how to supply argv-help (the placeholder string for an option parameter, e.g. "key-id" in "--gpg-sign=<key-id>"). * ib/rev-parse-parseopt-argh: t1502: protect runs of SPs used in the indentation rev-parse --parseopt: option argument name hints
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/git-rev-parse.txt34
1 files changed, 32 insertions, 2 deletions
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 0d2cdcde5..e05e6b359 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -284,13 +284,13 @@ Input Format
'git rev-parse --parseopt' input format is fully text based. It has two parts,
separated by a line that contains only `--`. The lines before the separator
-(should be more than one) are used for the usage.
+(should be one or more) are used for the usage.
The lines after the separator describe the options.
Each line of options has this format:
------------
-<opt_spec><flags>* SP+ help LF
+<opt_spec><flags>*<arg_hint>? SP+ help LF
------------
`<opt_spec>`::
@@ -313,6 +313,12 @@ Each line of options has this format:
* Use `!` to not make the corresponding negated long option available.
+`<arg_hint>`::
+ `<arg_hint>`, if specified, is used as a name of the argument in the
+ help output, for options that take arguments. `<arg_hint>` is
+ terminated by the first whitespace. When you need to use space in the
+ argument hint use dash instead.
+
The remainder of the line, after stripping the spaces, is used
as the help associated to the option.
@@ -333,6 +339,8 @@ h,help show the help
foo some nifty option --foo
bar= some cool option --bar with an argument
+baz=arg another cool option --baz with a named argument
+qux?path qux may take a path argument but has meaning by itself
An option group Header
C? option C with an optional argument"
@@ -340,6 +348,28 @@ C? option C with an optional argument"
eval "$(echo "$OPTS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)"
------------
+
+Usage text
+~~~~~~~~~~
+
+When `"$@"` is `-h` or `--help` in the above example, the following
+usage text would be shown:
+
+------------
+usage: some-command [options] <args>...
+
+ some-command does foo and bar!
+
+ -h, --help show the help
+ --foo some nifty option --foo
+ --bar ... some cool option --bar with an argument
+ --bar <arg> another cool option --baz with a named argument
+ --qux[=<path>] qux may take a path argument but has meaning by itself
+
+An option group Header
+ -C[...] option C with an optional argument
+------------
+
SQ-QUOTE
--------