diff -r bc7b6aa5d67a -r 7030706266df tools/find_outdated_engine_translations.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/find_outdated_engine_translations.sh	Fri Dec 06 22:20:53 2019 +0100
@@ -0,0 +1,82 @@
+#!/usr/bin/env bash
+#
+# Tool which tries to find outdated translations in the engine strings (*.txt) using hg blame.
+# Note this is only a heuristic; the output might not be 100% accurate.
+# Strings which this tool lists MIGHT be outdated, so you might want to re-translate them, if needed.
+# Run this in the tools/ directory.
+#
+# SYNTAX:
+#
+# ./find_outdated_engine_translations.sh <LANGUAGE>
+#
+# <LANGUAGE>: Language code of the language to check
+#
+shopt -s checkwinsize 
+
+cd ../share/hedgewars/Data/Locale
+
+IGNORE_CASE_WHITESPACE=1;
+if ((${#@}==2))
+then
+    IGNORE_CASE_WHITESPACE=$2;
+fi;
+
+BLAMELANG=$1;
+
+if [ -z $BLAMELANG ]
+then
+    echo "No language specified.";
+    exit;
+fi;
+BLAMELANGFILE="$BLAMELANG.txt";
+
+TEMP_EN=$(mktemp);
+TEMP_LANG=$(mktemp);
+
+#hg fa en.txt | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_EN;
+hg blame en.txt | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_EN;
+
+#hg fa $BLAMELANGFILE | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_LANG;
+hg blame $BLAMELANGFILE | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_LANG;
+
+cat $TEMP_EN | while read f;
+do
+    REV=$(echo $f | sed 's/:.*//');
+    CODE=$(echo $f | sed 's/^[0-9]\+:\s\+//;s/=.*//');
+    OTHER=$(grep -P "^\s*\d+:\s+${CODE}" $TEMP_LANG);
+    if (($?==0));
+    then
+        OTHER_REV=$(echo $OTHER | sed 's/:.*//');
+        if (($REV>$OTHER_REV));
+        then
+            TEXT=$(echo $f | sed 's/^\s*[0-9]\+:\s*[0-9]\+:[0-9]\+=//');
+			# script runs ~20% faster than with blame but nonstandard
+            # OLD_TEXT=$(hg fa -r "$OTHER_REV" en.txt | grep -P "^\s*\d+:\s+${CODE}=" | sed 's/^\s*[0-9]\+:\s*[0-9]\+:[0-9]\+=//;s/
//');
+            OLD_TEXT=$(hg blame -r "$OTHER_REV" en.txt | grep -P "^\s*\d+:\s+${CODE}=" | sed 's/^\s*[0-9]\+:\s*[0-9]\+:[0-9]\+=//;s/
//');
+
+            COMPARE_TEXT=$TEXT;
+            COMPARE_OLD_TEXT=$OLD_TEXT;
+            if (($IGNORE_CASE_WHITESPACE==1));
+            then
+                COMPARE_TEXT=$(echo $TEXT | sed 's/\s*//g' | tr A-Z a-z);
+                COMPARE_OLD_TEXT=$(echo $OLD_TEXT | sed 's/\s*//g' | tr A-Z a-z);
+            fi;
+
+            if [ "$COMPARE_TEXT" != "$COMPARE_OLD_TEXT" ];
+            then
+                if [ -z $COLUMNS ];
+                then
+                    printf '━%.0s' $(seq 74);
+                    echo "";
+                else
+                    printf '━%.0s' $(seq $COLUMNS);
+                fi;
+                echo "${CODE}=$TEXT ← Current English";
+                echo "${CODE}=$OLD_TEXT ← English at time of translation";
+                echo "${CODE}=$(echo $OTHER | sed 's/^\s*[0-9]\+:\s*[0-9]\{2\}:[0-9]\{2\}=//') ← current translation";
+            fi;
+        fi;
+    fi;
+done
+
+rm $TEMP_EN $TEMP_LANG