diff options
| -rwxr-xr-x | scripts/config | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/scripts/config b/scripts/config index 567120a87c3..2283be2bb62 100755 --- a/scripts/config +++ b/scripts/config @@ -62,15 +62,52 @@ checkarg() { fi } +txt_append() { + local anchor="$1" + local insert="$2" + local infile="$3" + local tmpfile="$infile.swp" + + # sed append cmd: 'a\' + newline + text + newline + cmd="$(printf "a\\%b$insert" "\n")" + + sed -e "/$anchor/$cmd" "$infile" >"$tmpfile" + # replace original file with the edited one + mv "$tmpfile" "$infile" +} + +txt_subst() { + local before="$1" + local after="$2" + local infile="$3" + local tmpfile="$infile.swp" + + sed -e "s/$before/$after/" "$infile" >"$tmpfile" + # replace original file with the edited one + mv "$tmpfile" "$infile" +} + +txt_delete() { + local text="$1" + local infile="$2" + local tmpfile="$infile.swp" + + sed -e "/$text/d" "$infile" >"$tmpfile" + # replace original file with the edited one + mv "$tmpfile" "$infile" +} + set_var() { local name=$1 new=$2 before=$3 name_re="^($name=|# $name is not set)" before_re="^($before=|# $before is not set)" if test -n "$before" && grep -Eq "$before_re" "$FN"; then - sed -ri "/$before_re/a $new" "$FN" + txt_append "^$before=" "$new" "$FN" + txt_append "^# $before is not set" "$new" "$FN" elif grep -Eq "$name_re" "$FN"; then - sed -ri "s:$name_re.*:$new:" "$FN" + txt_subst "^$name=.*" "$new" "$FN" + txt_subst "^# $name is not set" "$new" "$FN" else echo "$new" >>"$FN" fi @@ -79,7 +116,8 @@ set_var() { undef_var() { local name=$1 - sed -ri "/^($name=|# $name is not set)/d" "$FN" + txt_delete "^$name=" "$FN" + txt_delete "^# $name is not set" "$FN" } if [ "$1" = "--file" ]; then |