зеркало из https://github.com/microsoft/git.git
Usage message clean-up, take #2
There were some problems with the usage message clean-up patch series. I hadn't realised that subdirectory aware scripts can't source git-sh-setup. I propose that we change this and let the scripts which are subdirectory aware set a variable, SUBDIRECTORY_OK, before they source git-sh-setup. The scripts will also set USAGE and possibly LONG_USAGE before they source git-sh-setup. If LONG_USAGE isn't set it defaults to USAGE. If we go this way it's easy to catch --help in git-sh-setup, print the (long) usage message to stdout and exit cleanly. git-sh-setup can define a 'usage' shell function which can be called by the scripts to print the short usage string to stderr and exit non-cleanly. It will also be easy to change $0 to basename $0 or something else, if would like to do that sometime in the future. What follows is a patch to convert a couple of the commands to this style. If it's ok with everyone to do it this way I will convert the rest of the scripts too. [jc: thrown in to proposed updates queue for comments.] Signed-off-by: Junio C Hamano <junkio@cox.net>
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@ -1,4 +1,15 @@
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#!/bin/sh
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USAGE='[start|bad|good|next|reset|visualize]'
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LONG_USAGE='git bisect start [<pathspec>] reset bisect state and start bisection.
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git bisect bad [<rev>] mark <rev> a known-bad revision.
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git bisect good [<rev>...] mark <rev>... known-good revisions.
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git bisect next find next bisection to test and check it out.
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git bisect reset [<branch>] finish bisection search and go back to branch.
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git bisect visualize show bisect status in gitk.
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git bisect replay <logfile> replay bisection log
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git bisect log show bisect log.'
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. git-sh-setup
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sq() {
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@ -11,19 +22,6 @@ sq() {
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' "$@"
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}
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usage() {
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echo >&2 'usage: git bisect [start|bad|good|next|reset|visualize]
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git bisect start [<pathspec>] reset bisect state and start bisection.
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git bisect bad [<rev>] mark <rev> a known-bad revision.
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git bisect good [<rev>...] mark <rev>... known-good revisions.
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git bisect next find next bisection to test and check it out.
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git bisect reset [<branch>] finish bisection search and go back to branch.
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git bisect visualize show bisect status in gitk.
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git bisect replay <logfile> replay bisection log
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git bisect log show bisect log.'
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exit 1
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}
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bisect_autostart() {
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test -d "$GIT_DIR/refs/bisect" || {
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echo >&2 'You need to start by "git bisect start"'
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@ -1,21 +1,12 @@
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#!/bin/sh
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GIT_DIR=`git-rev-parse --git-dir` || exit $?
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die () {
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echo >&2 "$*"
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exit 1
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}
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usage () {
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echo >&2 "usage: $(basename $0)"' [-d <branch>] | [[-f] <branch> [start-point]]
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If no arguments, show available branches and mark current branch with a star.
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USAGE='[-d <branch>] | [[-f] <branch> [start-point]]'
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LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
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If one argument, create a new branch <branchname> based off of current HEAD.
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If two arguments, create a new branch <branchname> based off of <start-point>.
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'
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exit 1
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}
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If two arguments, create a new branch <branchname> based off of <start-point>.'
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SUBDIRECTORY_OK='Yes'
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. git-sh-setup
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headref=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
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@ -11,13 +11,37 @@
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# exporting it.
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unset CDPATH
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: ${GIT_DIR=.git}
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: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
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die() {
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echo >&2 "$@"
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exit 1
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}
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# Make sure we are in a valid repository of a vintage we understand.
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GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
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usage() {
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die "Usage: $0 $USAGE"
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}
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if [ -z "$LONG_USAGE" ]
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then
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LONG_USAGE="Usage: $0 $USAGE"
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else
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LONG_USAGE="Usage: $0 $USAGE
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$LONG_USAGE"
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fi
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case "$1" in
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--h|--he|--hel|--help)
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echo "$LONG_USAGE"
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exit
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esac
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if [ -z "$SUBDIRECTORY_OK" ]
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then
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: ${GIT_DIR=.git}
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: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
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# Make sure we are in a valid repository of a vintage we understand.
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GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
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else
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GIT_DIR=$(git-rev-parse --git-dir) || exit
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fi
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@ -2,7 +2,16 @@
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#
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# Copyright (c) 2005 Linus Torvalds
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#
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GIT_DIR=$(git-rev-parse --git-dir) || exit
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USAGE=''
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SUBDIRECTORY_OK='Yes'
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. git-sh-setup
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if [ "$#" != "0" ]
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then
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usage
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fi
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report () {
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header="#
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