Translate CHANGELOG.md adn README.md

Partially implements #task-7c5cd2aa-6d92-0423-bfa7-81f2e8436586.

As mentioned in the task, instead of making "README.md" as symlink to
"README.en.md", "README.md" is kept as it is, as the translated file
doesn't need to live in the repository.  The same goes for the
"CHANGELOG.md" file.

3 files changed, 56 insertions, 32 deletions

diff --git a/aux/workflow/commonmark.sh b/aux/workflow/commonmark.sh
index 2333f5d..b196867 100755
--- a/aux/workflow/commonmark.sh
+++ b/aux/workflow/commonmark.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 set -eu
 
-while getopts 'N:o:r:w:' flag; do
+while getopts 'N:o:r:w:L:' flag; do
 	case "$flag" in
 		N)
 			PROJECT_UC="$OPTARG"
@@ -15,6 +15,9 @@ while getopts 'N:o:r:w:' flag; do
 		w)
 			OUT_FILE="$OPTARG"
 			;;
+		L)
+			THE_LANG="$OPTARG"
+			;;
 		*)
 			exit 2
 			;;
@@ -32,20 +35,23 @@ assert_arg() {
 assert_arg "${PROJECT_UC:-}" '-N PROJECT_UC'
 assert_arg "${OUTDIR:-}"     '-o OUTDIR'
 assert_arg "${IN_FILE:-}"    '-i IN_FILE'
+assert_arg "${THE_LANG:-}"   '-L THE_LANG'
 
 if [ -z "${OUT_FILE:-}" ]; then
 	OUT_FILE="${IN_FILE%.md}.html"
 fi
 
+OUT="$OUTDIR/$OUT_FILE"
+mkdir -p "$(dirname "$OUT")"
 
 pandoc \
 	--toc                                           \
 	--highlight-style pygments                      \
 	--toc-depth=2                                   \
 	-s                                              \
-	--metadata title="$PROJECT_UC - ${IN_FILE%.md}" \
-	--metadata lang=en                              \
+	--metadata title="$PROJECT_UC - ${IN_FILE%%.*}" \
+	--metadata "lang=$THE_LANG"                     \
 	-r commonmark                                   \
 	-w html                                         \
 	-H aux/workflow/favicon.html                    \
-	< "$IN_FILE" > "$OUTDIR/$OUT_FILE"
+	< "$IN_FILE" > "$OUT"
diff --git a/aux/workflow/l10n.sh b/aux/workflow/l10n.sh
index e1fd3bb..89f2a6e 100755
--- a/aux/workflow/l10n.sh
+++ b/aux/workflow/l10n.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 set -eu
 
+mkdir -p doc/po
+
 LANGS=
 while getopts 'l:' flag; do
 	case "$flag" in
@@ -18,33 +20,39 @@ if [ -z "$LANGS" ]; then
 	exit 2
 fi
 
-end="\033[0m"
-yellow="\033[0;33m"
-manpage() {
-	from_f="$1"
-	for l in $LANGS; do
-		to_f="$(echo "$from_f" | sed "s/\.en\./.$l./")"
+po() {
+	format="$1"
+	from_f="$2"
+	to_f="$3"
+	lang="$4"
+	po4a-updatepo  -M UTF-8 -f "$format" -m "$from_f" -p "doc/po/$lang.po" -v --previous
+	po4a-translate -M UTF-8 -f "$format" -m "$from_f" -p "doc/po/$lang.po" -v -L UTF-8 -l "$to_f" -k 0 >&2
+}
 
+for from_f in "$@"; do
+	for lang in $LANGS; do
+		to_f="$(echo "$from_f" | sed "s/\.en\./.$lang./")"
 		printf 'Generating %s...\n' "$to_f"
-		OUT="$(mktemp)"
-		po4a-updatepo -f man -m "$from_f" -p "doc/po/$l.po"
-		po4a-translate -f man -m "$from_f" -p "doc/po/$l.po" -l "$to_f" -k 0 -v 2>&1 | tee "$OUT" >&2
 
-		if ! grep -qF ' is 100% translated (' "$OUT"; then
-			printf "\n\t${yellow}WARNING${end}!\n	Missing translations for %s\n\n" "$to_f" >&2
-		fi
+		case "$from_f" in
+			*.en.[1-9].in)
+				po man "$from_f" "$to_f" "$lang"
+				;;
+			*.en.md|*.en.msg)
+				po text "$from_f" "$to_f" "$lang"
+				;;
+			*)
+				echo "Unsupported file format: $from_f" >&2
+				exit 2
+				;;
+		esac
 	done
-}
+done
 
-for f in "$@"; do
-	case "$f" in
-		*.en.[1-9].in)
-			mkdir -p doc/po
-			manpage "$f"
-			;;
-		*)
-			echo "Unsupported file format: $f" >&2
-			exit 2
-			;;
-	esac
+end="\033[0m"
+yellowb="\033[1;33m"
+for lang in $LANGS; do
+	if LANG=POSIX msgfmt --statistics "doc/po/$lang.po" 2>&1 | grep translated; then
+		printf "\n\t${yellowb}WARNING${end}!\n	Missing translations for %s\n\n" "doc/po/$lang.po" >&2
+	fi
 done
diff --git a/aux/workflow/public.sh b/aux/workflow/public.sh
index ef89d07..be32ac1 100755
--- a/aux/workflow/public.sh
+++ b/aux/workflow/public.sh
@@ -2,7 +2,7 @@
 set -eu
 
 PROJECT_UC=
-while getopts 'n:N:m:o:' flag; do
+while getopts 'n:N:m:o:l:' flag; do
 	case "$flag" in
 		n)
 			PROJECT="$OPTARG"
@@ -16,6 +16,9 @@ while getopts 'n:N:m:o:' flag; do
 		o)
 			OUTDIR="$OPTARG"
 			;;
+		l)
+			LANGS="$OPTARG"
+			;;
 		*)
 			exit 2
 			;;
@@ -41,12 +44,19 @@ fi
 mkdir -p "$OUTDIR"
 
 sh aux/workflow/TODOs.sh -N "$PROJECT_UC" -n "$PROJECT" -m "$MAILING_LIST" -o "$OUTDIR"
-sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r README.md -w index.html
 
+sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r README.md -w index.html -Len
 if [ -f CHANGELOG.md ]; then
-	sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r CHANGELOG.md
+	sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r CHANGELOG.md -Len
+fi
+if [ -n "${LANGS:-}" ]; then
+	for lang in $LANGS; do
+		sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r "README.$lang.md" -w "$lang/index.html" -L "$lang"
+		if [ -f CHANGELOG.md ]; then
+			sh aux/workflow/commonmark.sh -N "$PROJECT" -o "$OUTDIR" -r "CHANGELOG.$lang.md" -w "$lang/CHANGELOG.html" -L "$lang"
+		fi
+	done
 fi
 
 sh aux/ci/report.sh -n "$PROJECT" -o "$OUTDIR"
-
 cp aux/workflow/favicon.svg aux/workflow/favicon.png "$OUTDIR"