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#!/bin/sh
# vim:set noet ts=4 sts=4:
# jpokorny@redhat.com
#
# internals
#
CLR_USR=34
CLR_SCR=32
CLR_BAD=31
CLR_WRN=33
RET_DEL=64
CHOICES=""
check_nargs () {
[ $1 -ge $2 ]
ret=$?
[ $ret -eq 0 ] || do_announce "action failed (expected $1+ args, got $2)" $CLR_BAD
return $ret
}
check_ret () {
[ $1 -ne 0 -a $1 -ne $RET_DEL ] \
&& do_announce "action failed with exit status $1" $CLR_BAD
return $1
}
do_del () {
#echo "delete $1?"
[ -d "$1" ] && rm -rfI -- "$1" || do_announce "$1 not present" $CLR_WRN
return $RET_DEL
}
do_announce () {
# usage: see announce ($1, $3) + [$2 = colour (defaults to 32/green)]
# use colours if available
[ "$3" = "delimit" ] && echo
if test -t 1; then
colour=$2
if [ -z "$colour" ]; then
colour=$CLR_USR
fi
echo -en "\\033[${colour}m"
echo -n "$1"
echo -e "\\033[0m"
else
echo "[[ $1 ]]"
fi
}
#
# "API" for sourced choices
#
register () {
# usage: $1=choice to register
CHOICES="$CHOICES|$1"
}
announce () {
# usage: $1=message to output [, $2 = start with extra newline if "delimit")]
do_announce "$1" $CLR_OK $2
}
require () {
# usage: $1=what is required [, $2=test (function/command)]
tester=$2
if [ -z "$tester" ]; then
tester=which
fi
$tester $1 >/dev/null
ret=$?
[ $ret -eq 0 ] \
&& do_announce "require $1: checked ok" $CLR_OK \
|| do_announce "require $1: not met" $CLR_BAD
return $ret
}
do_git_submodule () {
# usage: $1=action ($1 passed from main), $2..$N=submodule(s)
ret=0
git_prefix=$(git rev-parse --show-prefix)
for submodule in "${@:2}"; do
do_announce "$1 $submodule (git submodule)" $CLR_SCR delimit
if [ "$1" == "get" ]; then
pushd "$(git rev-parse --show-toplevel)" >/dev/null
# TODO: --recursive seems to be buggy?
git submodule update --init "${git_prefix}${submodule}" 2>&1
ret=$?
popd >/dev/null
if [ $ret -eq 0 ]; then
pushd $submodule >/dev/null
git submodule update --init 2>&1
popd >/dev/null
fi
else
do_del "$submodule"
ret=$?
fi
[ $ret -ne 0 ] && [ $ret -ne $RET_DEL ] && break
done
check_ret $ret
}
do_wget () {
# usage: $1=action ($1 passed from main), $2=DIR, $3..$N=arguments (to wget)
check_nargs $# 3 || return $?
toplevel="$2"
if [ "$(dirname $2)" != "." ]; then
toplevel="$(dirname $2)"
fi
do_announce "$1 $toplevel (wget)" $CLR_SCR delimit
if [ "$1" == "get" ]; then
wget --no-verbose --no-clobber --execute robots=off \
--directory-prefix "$2" "${@:3}" 2>&1
else
do_del "$toplevel"
fi
check_ret $?
}
do_svn () {
# usage: $1=action ($1 passed from main), $2=DIR, $3=SVN [, $4=REV]
check_nargs $# 3 || return $?
toplevel="$2"
if [ "$(dirname $2)" != "." ]; then
toplevel="$(dirname $2)"
fi
do_announce "$1 $toplevel (svn)" $CLR_SCR delimit
if [ "$1" == "get" ]; then
rev=""
if [ $# -ge 4 ]; then
rev="--revision $4"
fi
svn checkout --force $rev "$3" "$2" | grep "revision"
else
do_del "$toplevel"
fi
check_ret $?
}
do_post_get () {
# usage: $1=action ($1 passed from main), $2..$N command + args
[ "$1" != "get" ] || "${@:2}"
check_ret $?
}
#
# source the choices (./init-* files) and go
#
for choice in $(ls init-*); do [ -f $choice ] && source ./$choice; done
CHOICES=$(echo $CHOICES | sed 's/^|//')
main () {
action="get"
if [ "$1" == "get" -o "$1" == "del" ]; then
action="$1"
[ $# -gt 1 ] && shift # || fall-through via unrecognized choice
fi
while [ -n "$1" ]; do
eval "case \"$1\" in
$CHOICES)
$1 $action
ret=\$?
[ \$ret -ne 0 -a \$ret -ne $RET_DEL ] && return \$ret
shift
continue;;
all)
main $action $(echo $CHOICES | sed 's/|/ /g')
break;;
help|*)
echo \"usage: ./init.sh [del] ($CHOICES|all)+\"
break;;
esac"
done
}
[ $# -eq 0 ] && main help || main "$@"
|
