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#!/usr/bin/env bash
#
# Wrapper for git to handle more subdirs at the same time
#
set -x
# no params, no action
if [ "$#" -eq "0" ] ; then
git
echo
echo "Additional options available only in this 'g' wrapper:"
echo
echo "Usage: g [options] [git commands]"
echo " -f Force - act on all the repos, not only the changed ones"
echo " -s Silent - do not report the repo names."
exit $?
fi
CLONEDIR=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' $0 | sed -e ' s/\/g$/\/clone/'`
if [ ! -e ${CLONEDIR} ]; then mkdir -p $CLONEDIR; fi
RAWBUILDDIR=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' $0 | sed -e ' s/\/g$//'`
if [ ! -e ${RAWBUILDDIR} ]; then mkdir -p $RAWBUILDDIR; fi
# extra params for some commands, like log
EXTRA=
COMMAND="$1"
PAGER=
RELATIVIZE=1
PUSH_ALL=
ALLOW_EMPTY=
KEEP_GOING=0
REPORT_REPOS=1
while [ "${COMMAND:0:1}" = "-" ] ; do
case "$COMMAND" in
-f) KEEP_GOING=1
;;
-s) REPORT_REPOS=0
;;
esac
shift
COMMAND="$1"
done
case "$COMMAND" in
apply)
EXTRA="-p0 --stat --apply --index --ignore-space-change --whitespace=error"
RELATIVIZE=0
;;
diff)
PAGER='--no-pager'
REPORT_REPOS=0
;;
log)
if [ "$#" = "1" ] ; then
EXTRA='-1'
fi
PAGER='--no-pager'
;;
push)
if [ "$#" != "1" ] ; then
PUSH_ALL=1
fi
;;
esac
# absolutize the parameters first
unset FILES
FILESNUM=0
while shift ; do
PARAM="$1"
if [ -z "$PARAM" ] ; then
continue
elif [ "${PARAM:0:1}" = "-" ] ; then
if [ \( "$COMMAND" = "checkout" -a "$PARAM" = "-b" \) -o \
\( "$COMMAND" = "clone" -a "$PARAM" = "--reference" \) -o \
\( "$COMMAND" = "commit" -a "$PARAM" = "-m" \) -o \
\( "$COMMAND" = "commit" -a "$PARAM" = "-am" \) -o \
\( "$COMMAND" = "tag" -a "$PARAM" = "-m" \) ]
then
# params that take an argument
FILES[$FILESNUM]="$PARAM"
FILESNUM=$(($FILESNUM+1))
shift
FILES[$FILESNUM]="$1"
FILESNUM=$(($FILESNUM+1))
else
[ "$COMMAND" = "commit" -a "$PARAM" = "--allow-empty" ] && ALLOW_EMPTY=1
FILES[$FILESNUM]="$PARAM"
FILESNUM=$(($FILESNUM+1))
fi
else
if [ "$COMMAND" = "apply" ] ; then
grep -qs $'^+ *\t' "$PARAM" && {
echo "Patch '$PARAM' introduces tabs in indentation, aborting."
echo
echo "Please fix the patch (something like s/^\(+ *\)\t/\1 /) and try again."
echo
exit 1
}
fi
# make the paths absolute
FILES[$FILESNUM]=`perl -e 'use Cwd "abs_path"; print abs_path(shift);' "$PARAM"`
if [ -z "${FILES[$FILESNUM]}" -o ! -e "${FILES[$FILESNUM]}" ] ; then
# it is probably not a file, but a tag name, or something
FILES[$FILESNUM]="$PARAM"
fi
FILESNUM=$(($FILESNUM+1))
fi
done
# do it!
DIRS="bootstrap `(cd $CLONEDIR ; ls)`"
if [ "$COMMAND" = "clone" ] ; then
DIRS="artwork base calc components extensions extras filters
help impress libs-core libs-extern libs-extern-sys libs-gui
postprocess sdk testing ure writer"
fi
for REPO in $DIRS ; do
DIR="$CLONEDIR/$REPO"
NAME="$REPO"
if [ "$REPO" = "bootstrap" ] ; then
DIR="$RAWBUILDDIR"
NAME="main repo"
fi
if [ \( -d "$DIR" -a -d "$DIR"/.git \) -o \( "$COMMAND" = "clone" \) ] ; then
(
# executed in a subshell
if [ "$COMMAND" != "clone" ] ; then
cd "$DIR"
else
cd "$CLONEDIR"
fi
# relativize the absolutized params again if we want to operate
# only on the files belonging to this exact repo
if [ "$RELATIVIZE" = "1" -a -n "$FILES" ] ; then
FILESNUM=0
INSERTNUM=0
PWD=`pwd`
PWDLEN=`pwd | wc -c`
for I in "${FILES[@]}" ; do
I="${I//@REPO@/${REPO}}"
unset FILES[$FILESNUM]
FILESNUM=$(($FILESNUM+1))
# filter out files that don't belong to this repo
if [ \( "${I:0:1}" = "/" \) -a \( "$COMMAND" != "clone" \) ] ; then
if [ "${I:0:$PWDLEN}" = "$PWD/" ] ; then
FILES[$INSERTNUM]="${I:$PWDLEN}"
INSERTNUM=$(($INSERTNUM+1))
fi
else
FILES[$INSERTNUM]="$I"
INSERTNUM=$(($INSERTNUM+1))
fi
done
[ "$INSERTNUM" = "0" ] && exit 0
fi
# some extra params
case "$COMMAND" in
apply)
for I in * ; do
if [ -d "$I" ] ; then
EXTRA="$EXTRA --include=$I/*"
else
EXTRA="$EXTRA --include=$I"
fi
done
;;
commit)
if [ "$ALLOW_EMPTY" != "1" ] ; then
[ -z "`git diff-index --name-only HEAD --`" ] && exit 0
fi
;;
push)
if [ "$PUSH_ALL" != "1" ] ; then
[ -n "`git rev-list origin..HEAD`" ] || exit 0
fi
;;
status)
LOCALCOMMITS="`git rev-list origin..HEAD`"
if [ -z "$LOCALCOMMITS" ] ; then
[ -z "`git diff-index --name-only HEAD --`" ] && exit 0
fi
;;
clone)
EXTRA="$(git config remote.origin.url)"
EXTRA=${EXTRA/bootstrap/${REPO}}
;;
esac
[ "$REPORT_REPOS" = "1" ] && echo "===== $NAME ====="
# check for changes
HEADREF=`git show-ref --head HEAD`
# do it!
git $PAGER "$COMMAND" $EXTRA "${FILES[@]}"
RETURN=$?
# now we can change the dir in case of clone as well
[ "$COMMAND" = "clone" ] && cd $DIR
# update stamp if the repo changed
NEWHEADREF=`git show-ref --head HEAD`
[ "$HEADREF" != "$NEWHEADREF" ] && touch $CLONEDIR/repos_changed
case "$COMMAND" in
pull|clone)
# update links
for link in `ls` ; do
if [ ! -e "$RAWBUILDDIR/$link" ] ; then
echo "Creating missing link $link"
ln -s "$DIR/$link" "$RAWBUILDDIR/$link"
fi
done
;;
status)
# git status returns error in some versions, clear that
RETURN=0
;;
grep)
# git grep return an 'error' if nothing is found
# still we should continue grepping the other repos
RETURN=0
;;
esac
if [ "$KEEP_GOING" = "1" ] ; then
RETURN=0
fi
exit $RETURN
) || exit $?
fi
done
# Cleanup the broken links
if [ "$COMMAND" = "pull" ] ; then
for link in `ls $RAWBUILDDIR` ; do
if [ -h "$RAWBUILDDIR/$link" -a ! -e "$RAWBUILDDIR/$link" ]; then
echo "Removing broken link $link"
rm $RAWBUILDDIR/$link
fi
done
fi
# warn
if [ "$COMMAND" = "apply" ] ; then
echo
echo "Don't forget to check the status & commit now ;-)"
echo
fi
# vi:set shiftwidth=4 expandtab:
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