Launching po editor is optional

removed simple git diff in favor of textconv variant

.scripts/fuzzy_diff

@@ -1,17 +1,39 @@
 #!/bin/sh
 
+
+_usage() {
+    echo "Usage: $0 [-n] PO_FILE"
+    echo "Ease the correction of fuzzies inserted by merge commits"
+    echo
+    echo "-n, --no-edit    do not launch po editor"
+    exit
+}
+
+LAUNCH_EDIT=1
+if [[ $# -eq 2 ]]; then
+    if [[ $1 -eq "-n" ]] || [[ $1 -eq "--no-edit" ]]; then
+        LAUNCH_EDIT=0
+    else
+        _usage
+    fi
+    shift
+fi
+
 if [[ $# -ne 1 ]]; then
- echo "usage: $0 PO_FILE"
- echo "Ease the correction of fuzzies inserted by merge commits"
- exit
+    _usage
+fi
+
+if [[ ! -f $1 ]]; then
+    echo "$1: file not found"
+    _usage
 fi
 
 # Temp directory to filter files before display
 TMP_DIR=$(mktemp -d /tmp/fuzzy_diff.XXXXXX || exit 1)
-trap 'rm --force --recursive "$TMP_DIR"' EXIT
+trap 'rm --force --recursive "${TMP_DIR}"' EXIT
 
 
-PO_EDITOR=$(which poedit)
+PO_EDITOR=poedit
 DIFFTOOL=$(git config diff.tool)
 PO_FILE=$1
 
@@ -21,20 +43,18 @@ FUZZY_REVS=$(git log --oneline -S '#, fuzzy' ${PO_FILE} | \
              grep -i 'merge' | \
              awk '{ print $1 }')
 
-{PO_EDITOR} ${PO_FILE} 2>/dev/null &
+if [[ ${LAUNCH_EDIT} -eq 1 ]]; then
+    ${PO_EDITOR} "${PO_FILE}" 2>/dev/null &
+fi
+
 for sha in ${FUZZY_REVS} ; do
-    # show the diff between parent rev and fuzzy rev
-
-    # simple version which includes all modifications
-    #git difftool --no-prompt ${sha}^ ${sha} -- ${PO_FILE}
-
     # filter files à la mode textconv
     git show ${sha}:${PO_FILE} | grep -v -e '^#:' -e '^"PO' > ${TMP_DIR}/right.po
     git show ${sha}^:${PO_FILE} | grep -v -e '^#:' -e '^"PO' > ${TMP_DIR}/left.po
-    ${DIFFTOOL} ${TMP_DIR}/left.po ${TMP_DIR}/right.po
+    "${DIFFTOOL}" ${TMP_DIR}/left.po ${TMP_DIR}/right.po
 done
 
 # clean up temp directory
-rm --force --recursive "$TMP_DIR"
+rm --force --recursive "${TMP_DIR}"
 trap - EXIT