[libvirt] [PATCH 04/41] build: use a common rule for checking augeas test data files

[Andrea Bolognani]

On Fri, 2019-07-26 at 10:23 +0100, Daniel P. Berrangé wrote:
> On Fri, Jul 26, 2019 at 11:18:03AM +0200, Andrea Bolognani wrote:
> > On Tue, 2019-07-23 at 17:02 +0100, Daniel P. Berrangé wrote:
> > [...]
> > > +AUG_TEST_NAMES = $(subst /,-, $(augeastest_DATA))
> > >  
> > >  check-local: check-augeas
> > >  
> > > -check-augeas: $(AUGEAS_DIRS:%=check-augeas-%)
> > > +check-augeas: $(AUG_TEST_NAMES:%=check-augeas-%)
> > > +
> > > +check-augeas-%: $(augeas_DATA) $(augeastest_DATA)
> > > +	$(AM_V_GEN)export FILE=`echo $* | sed -e 's/.*-//'`; \
> > > +	export DIR=`echo $* | sed -e 's/-.*//'`; \
> > > +	if test -x '$(AUGPARSE)'; then \
> > > +	    '$(AUGPARSE)' -I $(srcdir)/$$DIR -I $(builddir)/$$DIR $$DIR/$$FILE; \
> > > +	fi
> > 
> > How about we skip the double conversion steps and just do
> > 
> >   check-augeas: $(augeas_DATA) $(augeastest_DATA)
> >       $(AM_V_GEN) \
> >       if test -x "$(AUGPARSE)"; then \
> >           for f in $(augeastest_DATA); do \
> >               DIR=$$(dirname "$$f"); \
> >               FILE=$$(basename "$$f"); \
> >               "$(AUGPARSE)" \
> >                   -I "$(srcdir)/$$DIR" -I "$(builddir)/$$DIR" \
> >                   "$$DIR/$$FILE"; \
> >           done; \
> >       fi
> >   .PHONY: check-augeas
> > 
> > instead? As an added bonus, this version avoids doing any work if
> > augparse is not available and is correctly marked as PHONY, which
> > the rules you're replacing also were.
> 
> This doesn't show any output for the files - I wanted to see the
> make output for each file being checked, as its a useful confirmation
> that we're actually processing the files we expect to have.

That's only a couple small tweaks away:

  check-augeas: $(augeas_DATA) $(augeastest_DATA)
    @if test -x "$(AUGPARSE)"; then \
      for f in $(augeastest_DATA); do \
        DIR=$$(dirname "$$f"); \
        FILE=$$(basename "$$f"); \
        echo "AUGPARSE $$f"; \
        "$(AUGPARSE)" \
          -I "$(srcdir)/$$DIR" -I "$(builddir)/$$DIR" \
          "$$DIR/$$FILE"; \
      done; \
    fi
  .PHONY: check-augeas

This version even results in a more accurate output, as we're not
really generating the files but rather validating them.

-- 
Andrea Bolognani / Red Hat / Virtualization