[PATCH 3/4] maint.mk: Update translations using rsync instead of wget.

[Martin von Gagern]

Checksums (-c) are used instead of timestamps (-t) to check whether a file
is already up to date.  This allows integration with version control systems
that usually don't preserve timestamps.  The listing of files was changed
from verbose (-v) to itemize (-i) so it becomes easier to distinguish
updated files from new ones.

See also http://translationproject.org/html/maintainers.html
---
 top/maint.mk |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/top/maint.mk b/top/maint.mk
index 2a90932..438d3ab 100644
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -848,12 +848,16 @@ coverage: init-coverage build-coverage gen-coverage
 # Update gettext files.
 PACKAGE ?= $(shell basename $(PWD))
 PO_DOMAIN ?= $(PACKAGE)
-POURL = http://translationproject.org/latest/$(PO_DOMAIN)/
 PODIR ?= po
+RSYNC_OPTIONS = -iz
+RSYNC_PROTECT ?= address@hidden address@hidden
+.PHONY: refresh-po
 refresh-po:
-       rm -f $(PODIR)/*.po && \
-       echo "$(ME): getting translations into po (please ignore the robots.txt 
ERROR 404)..." && \
-       wget --no-verbose --directory-prefix $(PODIR) --no-directories 
--recursive --level 1 --accept .po --accept .po.1 $(POURL) && \
+       @echo "$(ME): getting translations into $(PODIR)..."
+       rsync $(RSYNC_OPTIONS) -Lrc --delete \
+       $(patsubst %,-f 'protect %',$(RSYNC_PROTECT)) \
+       -f 'include *.po' -f 'exclude *' \
+       translationproject.org::tp/latest/$(PO_DOMAIN)/ $(PODIR)
        echo 'address@hidden' > $(PODIR)/LINGUAS && \
        echo 'address@hidden' >> $(PODIR)/LINGUAS && \
        ls $(PODIR)/*.po | sed 's/\.po//' | sed 's,$(PODIR)/,,' | sort >> 
$(PODIR)/LINGUAS
-- 
1.6.6