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index 52c353e674761bf4897484a261c702e5cc02f18a..e7845d4055f81caf2fa92268a17837514f08c4d3 100644 (file)
Many git porcelainish commands take mixture of flags
(i.e. parameters that begin with a dash '-') and parameters
-meant for the underlying 'git-rev-list' command they use internally
+meant for the underlying 'git rev-list' command they use internally
and flags and parameters for the other commands they use
-downstream of 'git-rev-list'. This command is used to
+downstream of 'git rev-list'. This command is used to
distinguish between them.
OPTIONS
-------
--parseopt::
- Use 'git-rev-parse' in option parsing mode (see PARSEOPT section below).
+ Use 'git rev-parse' in option parsing mode (see PARSEOPT section below).
--keep-dashdash::
Only meaningful in `--parseopt` mode. Tells the option parser to echo
out the first `--` met instead of skipping it.
+--stop-at-non-option::
+ Only meaningful in `--parseopt` mode. Lets the option parser stop at
+ the first non-option argument. This can be used to parse sub-commands
+ that take options themself.
+
+--sq-quote::
+ Use 'git rev-parse' in shell quoting mode (see SQ-QUOTE
+ section below). In contrast to the `--sq` option below, this
+ mode does only quoting. Nothing else is done to command input.
+
--revs-only::
Do not output flags and parameters not meant for
- 'git-rev-list' command.
+ 'git rev-list' command.
--no-revs::
Do not output flags and parameters meant for
- 'git-rev-list' command.
+ 'git rev-list' command.
--flags::
Do not output non-flag parameters.
properly quoted for consumption by shell. Useful when
you expect your parameter to contain whitespaces and
newlines (e.g. when using pickaxe `-S` with
- 'git-diff-\*').
+ 'git diff-\*'). In contrast to the `--sq-quote` option,
+ the command input is still interpreted as usual.
--not::
When showing object names, prefix them with '{caret}' and
--all::
Show all refs found in `$GIT_DIR/refs`.
---branches::
- Show branch refs found in `$GIT_DIR/refs/heads`.
+--branches[=pattern]::
+--tags[=pattern]::
+--remotes[=pattern]::
+ Show all branches, tags, or remote-tracking branches,
+ respectively (i.e., refs found in `$GIT_DIR/refs/heads`,
+ `$GIT_DIR/refs/tags`, or `$GIT_DIR/refs/remotes`,
+ respectively).
++
+If a `pattern` is given, only refs matching the given shell glob are
+shown. If the pattern does not contain a globbing character (`?`,
+`\*`, or `[`), it is turned into a prefix match by appending `/\*`.
---tags::
- Show tag refs found in `$GIT_DIR/refs/tags`.
+--glob=pattern::
+ Show all refs matching the shell glob pattern `pattern`. If
+ the pattern does not start with `refs/`, this is automatically
+ prepended. If the pattern does not contain a globbing
+ character (`?`, `\*`, or `[`), it is turned into a prefix
+ match by appending `/\*`.
---remotes::
- Show tag refs found in `$GIT_DIR/refs/remotes`.
+--show-toplevel::
+ Show the absolute path of the top-level directory.
--show-prefix::
When the command is invoked from a subdirectory, show the
--since=datestring::
--after=datestring::
Parse the date string, and output the corresponding
- --max-age= parameter for 'git-rev-list'.
+ --max-age= parameter for 'git rev-list'.
--until=datestring::
--before=datestring::
Parse the date string, and output the corresponding
- --min-age= parameter for 'git-rev-list'.
+ --min-age= parameter for 'git rev-list'.
<args>...::
Flags and parameters to be parsed.
name the same commit object if there are no other object in
your repository whose object name starts with dae86e.
-* An output from 'git-describe'; i.e. a closest tag, optionally
+* An output from 'git describe'; i.e. a closest tag, optionally
followed by a dash and a number of commits, followed by a dash, a
`g`, and an abbreviated object name.
+
HEAD names the commit your changes in the working tree is based on.
FETCH_HEAD records the branch you fetched from a remote repository
-with your last 'git-fetch' invocation.
+with your last 'git fetch' invocation.
ORIG_HEAD is created by commands that moves your HEAD in a drastic
way, to record the position of the HEAD before their operation, so that
you can change the tip of the branch back to the state before you ran
them easily.
MERGE_HEAD records the commit(s) you are merging into your branch
-when you run 'git-merge'.
+when you run 'git merge'.
* A ref followed by the suffix '@' with a date specification
enclosed in a brace
* The special construct '@\{-<n>\}' means the <n>th branch checked out
before the current one.
+* The suffix '@{upstream}' to a ref (short form 'ref@{u}') refers to
+ the branch the ref is set to build on top of. Missing ref defaults
+ to the current branch.
+
* A suffix '{caret}' to a revision parameter means the first parent of
that commit object. '{caret}<n>' means the <n>th parent (i.e.
'rev{caret}'
SPECIFYING RANGES
-----------------
-History traversing commands such as 'git-log' operate on a set
+History traversing commands such as 'git log' operate on a set
of commits, not just a single commit. To these commands,
specifying a single revision with the notation described in the
previous section means the set of commits reachable from that
PARSEOPT
--------
-In `--parseopt` mode, 'git-rev-parse' helps massaging options to bring to shell
+In `--parseopt` mode, 'git rev-parse' helps massaging options to bring to shell
scripts the same facilities C builtins have. It works as an option normalizer
(e.g. splits single switches aggregate values), a bit like `getopt(1)` does.
Input Format
~~~~~~~~~~~~
-'git-rev-parse --parseopt' input format is fully text based. It has two parts,
+'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.
The lines after the separator describe the options.
eval `echo "$OPTS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?`
------------
+SQ-QUOTE
+--------
+
+In `--sq-quote` mode, 'git rev-parse' echoes on the standard output a
+single line suitable for `sh(1)` `eval`. This line is made by
+normalizing the arguments following `--sq-quote`. Nothing other than
+quoting the arguments is done.
+
+If you want command input to still be interpreted as usual by
+'git rev-parse' before the output is shell quoted, see the `--sq`
+option.
+
+Example
+~~~~~~~
+
+------------
+$ cat >your-git-script.sh <<\EOF
+#!/bin/sh
+args=$(git rev-parse --sq-quote "$@") # quote user-supplied arguments
+command="git frotz -n24 $args" # and use it inside a handcrafted
+ # command line
+eval "$command"
+EOF
+
+$ sh your-git-script.sh "a b'c"
+------------
+
EXAMPLES
--------