Setup basic translation infrastructure

1 files changed, 109 insertions, 0 deletions

diff --git a/aux/workflow/l10n.sh b/aux/workflow/l10n.sh
new file mode 100755
index 0000000..cb132a3
--- /dev/null
+++ b/aux/workflow/l10n.sh
@@ -0,0 +1,109 @@
+#!/bin/sh
+set -eu
+
+LANGS=
+MAX_JOBS=64
+while getopts 'l:L:j:' flag; do
+	case "$flag" in
+		l)
+			LANGS="$OPTARG"
+			;;
+		L)
+			CONTRIBLANGS="$OPTARG"
+			;;
+		j)
+			MAX_JOBS="$OPTARG"
+			;;
+		*)
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+assert_arg() {
+	if [ -z "$1" ]; then
+		echo "Missing $2" >&2
+		exit 2
+	fi
+}
+
+assert_arg "${LANGS:-}" '-l LANGS'
+
+PARALLEL_N=0
+parallel_run() {
+	{
+		"$@"
+	} &
+	PARALLEL_N=$((PARALLEL_N + 1))
+	if [ "$PARALLEL_N" = "$MAX_JOBS" ]; then
+		wait
+		PARALLEL_N=0
+	fi
+}
+
+po_run() {
+	from_f="$1"
+	lang="$2"
+	to_f="$(echo "$from_f" | sed "s/en\./$lang./")"
+	printf 'Generating %s...\n' "$to_f" >&2
+	pofile="po/LC_MESSAGES/$from_f/$lang.po"
+	mkdir -p "$(dirname "$pofile")"
+
+	case "$from_f" in
+		*.en.[1-9].in)
+			po4a-updatepo -f man -m "$from_f" -p "$pofile"
+			po4a-translate -f man -m "$from_f" \
+				-p "$pofile" -l "$to_f" -k 0 -v >&2
+			;;
+		*.en.html)
+			po4a-updatepo -f xhtml -m "$from_f" -p "$pofile"
+			po4a-translate -f xhtml -m "$from_f" \
+				-p "$pofile" -l "$to_f" -k 0 -v >&2
+			;;
+		*.en.md)
+			touch "$pofile"
+			md2po --include-codeblocks --quiet --save \
+				--po-filepath "$pofile" < "$from_f"
+			po2md --pofiles "$pofile" --save "$to_f" \
+				--quiet --wrapwidth 999 < "$from_f"
+			;;
+		*.en.msg|*.en.txt)
+			po4a-updatepo -f text -m "$from_f" -p "$pofile"
+			po4a-translate -f text -m "$from_f" \
+				-p "$pofile" -l "$to_f" -k 0 -v >&2
+			;;
+		*)
+			echo "Unsupported file format: $from_f" >&2
+			exit 2
+			;;
+	esac
+}
+
+for from_f in "$@"; do
+	for lang in $LANGS ${CONTRIBLANGS:-}; do
+		parallel_run po_run "$from_f" "$lang"
+	done
+done
+
+EXIT_CODE=0
+
+end="\033[0m"
+yellowb="\033[1;33m"
+for lang in $LANGS; do
+	# shellcheck disable=2044
+	for pofile in $(find po/ -type f -name "$lang.po"); do
+		if ! LANG=POSIX msgfmt --statistics "$pofile" 2>&1 |
+				grep untranslated; then
+			continue
+		fi
+		# shellcheck disable=2059
+		printf "\n  ${yellowb}WARNING${end}!" >&2
+		printf "\n  Missing translations for %s\n\n" "$pofile" >&2
+		EXIT_CODE=1
+	done
+done
+
+if [ -n "${ASSERT_NO_MISSING_TRANSLATIONS:-}" ]; then
+	exit "$EXIT_CODE"
+fi