langcheck.sh

#!/bin/bash

# a) Compare existing language resources.
# b) Check if some of the keys in the reference language resources are
#    not used.
# c) Try to find all keys in the code and check if they're present in
#    the reference language resources.

# Launch this script from the root directory of FluxBB.

lang_reference="${1:-lang/English}"
lang_trans="${2:-lang/German}"
ref_keys="${3:-/tmp/keys}"

> "$ref_keys"

for reffile in "$lang_reference"/*.php
do
	basefile=$(basename "$reffile")
	transfile="$lang_trans/$basefile"
	basemodule=$(grep -o '^\$lang_[^ ]\+' "$reffile")

	echo "** Comparing $basefile ($basemodule)... "

	php <<EOF
<?php

include('$reffile');
\$reflang = $basemodule;

include('$transfile');
\$translang = $basemodule;

\$miss = array_keys(array_diff_key(\$reflang, \$translang));
if (count(\$miss) > 0)
	echo "Missing in $lang_trans:\n\t".implode("\n\t", \$miss)."\n";

\$miss = array_keys(array_diff_key(\$translang, \$reflang));
if (count(\$miss) > 0)
	echo "Missing in $lang_reference:\n\t".implode("\n\t", \$miss)."\n";

foreach (\$reflang as \$rk => \$dummy)
	file_put_contents("$ref_keys",
		'$basemodule'."['".\$rk."']\n", FILE_APPEND);
?>
EOF
done

echo "----------------"

echo "** Checking for unused keys of reference language..."
while read -r line
do
	grep -R -F "$line" . >/dev/null 2>&1 || echo "Unused key: $line"
done < "$ref_keys"

echo "----------------"

echo "** Checking for missing keys in reference language..."
while read -r line
do
	grep -F "$line" "$ref_keys" >/dev/null 2>&1 \
		|| echo "Missing key: $line"
done < <(grep -R -oh "\$lang_[^[]\+\['[^']\+'\]" . | sort | uniq)

echo "----------------"
echo "Finished."