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|
#!/bin/sh
## ok: a minimal command runner and build tool
# by Case Duckworth <acdw@acdw.net> -- released to the public domain
QUIET=false
NORUN=false
FBUILD=false
OKFILE=./ok
FRFILE=.fr
_usage() {
exec >&2
cat<<EOF
Usage: ok [OPTIONS] [TARGET...]
Options:
-h Show this help and exit
-q Don't output diagnostic messages
-x Run with set -x
-B Treat all targets as 'new' (force running)
-n Don't run commands
-f FILE Use FILE as \$OKFILE (default: 'ok')
-C DIRECTORY Change to DIRECTORY before doing anything
Targets defined in $OKFILE:
$(sed -n \
-e 's/^alias *\(.*\)/*\1/p' \
-e 's/^\([a-z][a-z]*\)().*##* *\(.*\)/ \1 # \2/p' \
-e 's/^\([a-z][a-z]*\)().*/ \1/p' \
"$OKFILE")
EOF
exit $1
}
buildp() { # buildp target dependency...
$FBUILD && return
target="$1"; shift
test -e "$target" || return
for f
do
test x-- = "x$f" && continue
test "$f" -nt "$target" && return
done
return 1
}
ok() { # ok command...
$QUIET || printf >&2 '* %s\n' "$*"
$NORUN || "$@" || exit $((100 + $?))
}
quietly() { "$@" >/dev/null 2>&1; }
frun() {
cut -f2- <"$FRFILE" |
while read -r line
do eval "$line"
done
}
fr() { # fr < GOAL JOB DEPS...
# recommended: use a heredoc
:>"$FRFILE"
while read -r goal job deps
do
eval set -- "$deps"
if buildp "$goal" "$@"
then
printf '%s\t%s %s\n' \
"$goal" \
"$job" "$(echo "$deps"|sed 's/--.*//')" \
>>"$FRFILE"
fi
done
}
while getopts hqnxBf:C: OPT
do
case "$OPT" in
(h) _usage ;;
(q) QUIET=true ;;
(x) set -x ;;
(n) NORUN=true ;;
(B) FBUILD=true ;;
(f) OKFILE="$OPTARG" ;;
(C) cd "$OPTARG" || exit 2 ;;
(*) _usage 1 ;;
esac
done
shift $((OPTIND - 1))
. "$OKFILE" || exit 3
test -z "$1" && default
for target
do
if grep -q "$target" "$FRFILE"
then eval "$(grep "$target" "$FRFILE" | cut -f2-)"
else "$target"
fi
done
|
