man/po/Makefile.in: avoid unnecessary changes to git indexed files

Keep pot creation date out of our po files when we compare them.
Otherwise, we always think they need to be updated.

We prepend a line '# To re-generate, ....' to the shadow-man-pages.pot
file.  Do that before we compare the new candidate, because right
now our comparison to see if we've made changes always thinks we have.

Put some of the tempfiles in a mktemp -d'd directory, which we remove when
all's done.  This keeps the working tree cleaner.

Signed-off-by: Serge Hallyn <[email protected]>

man/po/Makefile.in

@@ -86,37 +86,38 @@ stamp-po: $(srcdir)/$(DOMAIN).pot
 # This target rebuilds $(DOMAIN).pot; it is an expensive operation.
 # Note that $(DOMAIN).pot is not touched if it doesn't need to be changed.
 # TODO: set MSGID_BUGS_ADDRESS, COPYRIGHT_HOLDER
-$(DOMAIN).pot-update: $(XMLFILES) $(srcdir)/XMLFILES remove-potcdate.sed
- @set -e; tmpdir=`pwd`; \
- echo "cd $(top_srcdir)/man"; \
+$(DOMAIN).pot-update: $(XMLFILES) $(srcdir)/XMLFILES
+ @set -ex; tmpdir=`mktemp -d`; \
+ origdir=`pwd`; \
  cd $(top_srcdir)/man; \
+ cp *.xml $$tmpdir/; \
  files=""; \
  for file in $(notdir $(XMLFILES)); do \
+ base=`basename $$file`; \
+ outfile=$$tmpdir/$$base.out; \
  if grep -q SHADOW-CONFIG-HERE $$file ; then \
- sed -e 's/^<!-- SHADOW-CONFIG-HERE -->/<!ENTITY % config SYSTEM "config.xml">%config;/' $$file > $$file.out; \
+ sed -e 's/^<!-- SHADOW-CONFIG-HERE -->/<!ENTITY % config SYSTEM "config.xml">%config;/' $$file > $$outfile; \
  else \
- sed -e 's/^\(<!DOCTYPE .*docbookx.dtd"\)>/\1 [<!ENTITY % config SYSTEM "config.xml">%config;]>/' $$file > $$file.out; \
+ sed -e 's/^\(<!DOCTYPE .*docbookx.dtd"\)>/\1 [<!ENTITY % config SYSTEM "config.xml">%config;]>/' $$file > $$outfile; \
  fi; \
- files="$$files $$file.out"; \
+ files="$$files $$outfile"; \
  done; \
  itstool -d -o $$tmpdir/$(DOMAIN).po $$files; \
- cd $$tmpdir; \
- test ! -f $(DOMAIN).po || { \
+ sed -i '1i \
+# To re-generate, run "cd man/po; make update-po"' $$tmpdir/$(DOMAIN).po; \
+ cd $$origdir; \
+ test ! -f $$tmpdir/$(DOMAIN).po || { \
  if test -f $(srcdir)/$(DOMAIN).pot; then \
- sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $(DOMAIN).1po && \
- sed -f remove-potcdate.sed < $(DOMAIN).po > $(DOMAIN).2po && \
- if cmp $(DOMAIN).1po $(DOMAIN).2po >/dev/null 2>&1; then \
- rm -f $(DOMAIN).1po $(DOMAIN).2po $(DOMAIN).po; \
- else \
- rm -f $(DOMAIN).1po $(DOMAIN).2po $(srcdir)/$(DOMAIN).pot && \
- mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+ sed -f remove-potcdate.sed < $(srcdir)/$(DOMAIN).pot > $$tmpdir/$(DOMAIN).1po && \
+ sed -f remove-potcdate.sed < $$tmpdir/$(DOMAIN).po > $$tmpdir/$(DOMAIN).2po && \
+ if ! cmp $$tmpdir/$(DOMAIN).1po $$tmpdir/$(DOMAIN).2po >/dev/null 2>&1; then \
+ rm -f $(srcdir)/$(DOMAIN).pot && \
+ mv $$tmpdir/$(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
  fi; \
  else \
- mv $(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
+ mv $$tmpdir/$(DOMAIN).po $(srcdir)/$(DOMAIN).pot; \
  fi; \
- sed -i '1i \
-# To re-generate, run "cd man/po; make update-po"' $(srcdir)/$(DOMAIN).pot; \
- }
+ } ; rm -rf $$tmpdir
 
 # This rule has no dependencies: we don't need to update $(DOMAIN).pot at
 # every "make" invocation, only create it when it is missing.
@@ -214,26 +215,25 @@ update-po: Makefile
 
 .nop.po-update:
  @lang=`echo $@ | sed -e 's/\.po-update$$//'`; \
- tmpdir=`pwd`; \
+ ptmpdir=`mktemp -d`; \
  echo "$$lang:"; \
  test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
  echo "$${cdcmd}$(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$lang.new.po"; \
  cd $(srcdir); \
- if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$tmpdir/$$lang.new.po; then \
- if cmp $$lang.po $$tmpdir/$$lang.new.po >/dev/null 2>&1; then \
-  rm -f $$tmpdir/$$lang.new.po; \
- else \
- if mv -f $$tmpdir/$$lang.new.po $$lang.po; then \
+ if $(MSGMERGE) $$lang.po $(DOMAIN).pot -o $$ptmpdir/$$lang.new.po; then \
+ sed -f remove-potcdate.sed < $$lang.po > $$ptmpdir/$$lang.1po; \
+ sed -f remove-potcdate.sed < $$ptmpdir/$$lang.new.po > $$ptmpdir/$$lang.new.1po; \
+ if ! cmp $$ptmpdir/$$lang.1po $$ptmpdir/$$lang.new.1po >/dev/null 2>&1; then \
+ if mv -f $$ptmpdir/$$lang.new.po $$lang.po; then \
  :; \
  else \
- echo "msgmerge for $$lang.po failed: cannot move $$tmpdir/$$lang.new.po to $$lang.po" 1>&2; \
+ echo "msgmerge for $$lang.po failed: cannot move $$ptmpdir/$$lang.new.po to $$lang.po" 1>&2; \
  exit 1; \
  fi; \
  fi; \
  else \
  echo "msgmerge for $$lang.po failed!" 1>&2; \
- rm -f $$tmpdir/$$lang.new.po; \
- fi
+ fi ; rm -rf $$ptmpdir
 
 $(DUMMYPOFILES):