remove shcompile

This commit is contained in:
zawz 2020-10-23 10:05:55 +02:00
parent 2f03f2e23f
commit f4bad72473

View file

@ -1,120 +0,0 @@
#!/bin/sh
fname=$(basename "$0")
usage()
{
echo "$fname <file>
Compile the target shell script into a single output
Functionality:
- resolve '%include' lines with shell capacity
- minimize code (shfmt required)
Options:
-I Don't resolve includes
-M Don't minimize code"
}
unset opt_m opt_I
while getopts ":hIM" opt;
do
case $opt in
h) usage && exit 1 ;;
I) opt_I=y ;;
M) opt_M=y ;;
esac
done
shift $((OPTIND-1))
# no arg
unset infile
if [ $# -lt 1 ]
then
if ! [ -t 0 ]
then infile=/dev/stdin
else usage && exit 1
fi
fi
[ -z "$TMPDIR" ] && TMPDIR=/tmp
tmpdir="$TMPDIR/shcompile_$(tr -dc '[:alnum:]' < /dev/urandom | head -c10)"
mkdir -p "$tmpdir"
retfile="$tmpdir/ret"
filelist="$tmpdir/list"
headfile="$tmpdir/head"
tailfile="$tmpdir/tail"
stop()
{
rm -rf "$tmpdir"
exit $1
}
warn()
{
printf "\033[33m%s\033[0m\n" "$*"
}
get_include_line()
{
[ -z "$opt_I" ] && grep -m1 -n '^%include ' "$1" | cut -d':' -f1
}
[ -z "$infile" ] && infile=$1
dirname=$()
[ "$infile" = '-' ] && infile=/dev/stdin
# create copy
cat "$infile" > "$retfile" 2>&1 || { echo "Error: cannot read '$infile'" >&2 && stop 2; }
# env when file
[ "$infile" != "/dev/stdin" ] && {
echo "$(readlink -f "$infile")" > "$filelist"
cd "$(dirname "$infile")"
}
firstline=$(head -n1 "$retfile" | grep '^#!/')
if [ -n "$firstline" ]
then
sed -i 1d "$retfile"
else
firstline='#!/bin/sh'
fi
n=$(get_include_line "$retfile")
while [ -n "$n" ]
do
pre=$(head -n $((n-1)) "$retfile" > "$headfile")
post=$(tail -n +$((n+1)) "$retfile" > "$tailfile")
incarg=$(sed "$n""q;d" "$retfile" | cut -d ' ' -f2-)
inc=$(echo "for I in $incarg ; do echo \$I ; done" | sh)
cp "$headfile" "$retfile"
echo "$inc" | while read -r file
do
cat "$file" >/dev/null 2>&1 || { echo "Error when trying to include '$incarg': '$file' could not be read" >&2 && stop 10; }
if ! grep -q "^$(readlink -f "$file")\$" "$filelist"
then # not already included
cat "$file" >> "$retfile"
echo "$(readlink -f "$file")" >> "$filelist"
fi
cd "$pwd"
done
cat "$tailfile" >> "$retfile"
# get next include line
n=$(get_include_line "$retfile")
done
if [ -z "$opt_M" ]
then
if which shfmt >/dev/null 2>&1
then shfmt -w -mn "$retfile"
else warn "warn: sfmt not installed, code cannot be minimized"
fi
fi
echo "$firstline"
cat "$retfile"
stop 0