From fed16d508922007a9fa6b894d723106c8bbc9a2b Mon Sep 17 00:00:00 2001
From: Petter Reinholdtsen <pere@hungry.com>
Date: Sat, 2 Mar 2019 12:27:06 +0100
Subject: [PATCH] Added makefile for maintaining translations as PO files

This makefile allow the web2py translations to be maintained as
gettext po files to make easier for translators.

These rules assume the en-us.py file is generated from source and
contain every translatable string in the application.  It further
ignore the default.py and plural-*.py files, because I do not know
how to best handle them as po files.

Too migrate once from py to po files, run this:
  make migrate oztree.pot pofiles clean

To generate py files for use when building, run
  make

To see translation status, run
  make stats

You need a version of Translation Toolkit where
https://github.com/translate/translate/issues/3254 is fixed, for
example the version from Debian.

Related to issue #138.
---
 languages/Makefile | 58 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 languages/Makefile

diff --git a/languages/Makefile b/languages/Makefile
new file mode 100644
index 000000000..3ae923c40
--- /dev/null
+++ b/languages/Makefile
@@ -0,0 +1,58 @@
+# Maintain translations for web2py as gettext po files to make life
+# easier for translators.
+#
+# These rules assume the en-us.py file is generated from source and
+# contain every translatable string in the application.  It further
+# ignore the default.py and plural-*.py files, because I do not know
+# how to best handle them as po files.
+#
+# Too migrate once from py to po files, run this:
+#   make migrate oztree.pot pofiles clean
+#
+# To generate py files for use when building, run
+#   make
+#
+# To see translation status, run
+#   make stats
+#
+# You need a version of Translation Toolkit where
+# https://github.com/translate/translate/issues/3254 is fixed, for
+# example the version from Debian.
+
+TRANSLATIONS = ar ca cs de es fr-ca fr hi hu id it my-mm my nl \
+	pl pt-br pt ro ru sk sv tr uk zh-cn zh-tw zh
+
+POFILES = $(TRANSLATIONS:=.po)
+PYFILES = $(TRANSLATIONS:=.py)
+
+all: $(PYFILES)
+
+pyfiles: $(PYFILES)
+pofiles: $(POFILES)
+
+oztree.pot: en-us.py
+	web2py2po -P -i en-us.py -o oztree.pot
+
+$(POFILES): oztree.pot
+	msgmerge $@ oztree.pot -o $@.new && mv $@.new $@
+
+.po.py:
+	po2web2py -i $^ -o $@
+
+clean:
+	$(RM) $(PYFILES)
+
+stats:
+	for f in $(POFILES); do \
+	  printf "%-15s " $$f; msgfmt --output /dev/null --statistics $$f; \
+	done
+
+# This target should only be used once, when starting to maintain
+# translations as PO files.
+migrate:
+	for f in $(PYFILES); do \
+	  echo web2py2po -P -i $$f -o $${f%.py}.po ; \
+	  web2py2po -P -i $$f -o $${f%.py}.po ; \
+	done
+
+.SUFFIXES: .po .py .pot