Clean POSIX checking script + POSIXed scripts

scripts/dmenu-mpd.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 DMENU=${DMENU:-dmenu}
 
@@ -9,15 +9,15 @@ cmd_list="play stop next prev toggle add volume seek repeat single consume rando
 
 mpc_add() {
     file="$(mpc listall | ${DMENU} -l 15 -p "$prompt_add")"
-    [[ -z $file ]] && exit 1
+    [ -z $file ] && exit 1
     mpc add "$file"
     mpc play
 }
 
 cmd="$(echo $cmd_list | sed 's/ /\n/g' | ${DMENU} -p "$prompt")"
-[[ -z $cmd ]] && exit 1
+[ -z $cmd ] && exit 1
 
-if [[ $cmd = add ]]; then
+if [ $cmd = add ]; then
     mpc_add
 else
     mpc $cmd

scripts/dmenu-pwsafe.sh

@@ -10,6 +10,6 @@ PROMPT="pwsafe $@"
 
 item=$(eval ${DMENU} -p \""$PROMPT\"" < "$PWLIST")
 
-[[ -z $item ]] && exit 1
+[ -z $item ] && exit 1
 
 ${TERMCMD} -name pass -e pwsafe $@ "$item" --

scripts/dmenu-tmux.sh

@@ -2,7 +2,7 @@
 
 DMENU=${DMENU:-dmenu}
 
-if [[ -f $HOME/.tmux/attach.list ]]; then
+if [ -f $HOME/.tmux/attach.list ]; then
     . $HOME/.tmux/attach.list
 fi
 
@@ -18,6 +18,6 @@ spawn_local() {
 
 target=$(echo $tmux_pre $tmux_run | sed 's/ /\n/g' | sort -u | eval ${DMENU} -p "$prompt")
 
-if [[ -n $target ]]; then
+if [ -n $target ]; then
     spawn_local $target
 fi

scripts/dmenu-udevil.sh

@@ -57,7 +57,7 @@ dmenu_mnt() {
             0) urgency="normal";;
             *) urgency="critical";;
         esac
-        notify-send -u $urgency "$(<$TMP)"
+        notify-send -u $urgency "$(cat $TMP)"
     else
         cat "$TMP"
     fi

termscripts/posix-check.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+output="/tmp/posix-check-$(date +%s)"
+checkbashisms -f $SCRIPTS/*.sh $TSCRIPTS/*.sh > $output 2>&1 
+
+errorline () {
+    [ -n "$(echo "$1" | grep '(unsafe echo with backslash)')" ] && echo "1" && \
+        return
+    [ -n "$(echo "$1" | grep '($"foo" should be eval_gettext "foo")')" ] && \
+        echo "1" && return
+    [ -n "$(echo "$1" | grep '(\[^\] should be \[!\])')" ] && echo "1" && return
+    [ -n "$(echo "$1" | grep -E "bashism in ($SCRIPTS|$TSCRIPTS)/.*\\.sh")" ] && echo "2" && return
+    echo "0"
+}
+
+bashism="0"
+while read -r line
+do
+    # echo "$(errorline "$line")"
+    case "$(errorline "$line")" in
+        0) ;;
+        1) bashism="0" ;;
+        2) bashism="1" ;;
+    esac
+    [ "$bashism" = "1" ] && echo "$line"
+done < $output