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spec: indent %if to make it easier to see conditions

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Nested conditionals are hard to read if they are not indented.
We can't add arbitrary whitespace to everything in spec files,
but we CAN add spaces before %if and %define.  Use this trick,
plus a fancy sed script that rewrites a spec file into a C
file, so we can use cppi to keep our spec file nice.

For reference, the sed script converts code like:

|# RHEL-5 builds are client-only for s390, ppc
|%if 0%{?rhel} == 5
|    %ifnarch %{ix86} x86_64 ia64
|        %define client_only        1
|    %endif
|%endif

into the following for cppi:

|// # RHEL-5 builds are client-only for s390, ppc
|#if a // 0%{?rhel} == 5
|# if a // %{ix86} x86_64 ia64
|#  define client_only        1
|# endif
|#endif

and errors from 'make syntax-check' look like:
spec_indentation
cppi: mingw-libvirt.spec.in: line 130: not properly indented
maint.mk: incorrect preprocessor indentation

* libvirt.spec.in: Add some indentation to make it easier to follow
various conditionals.
* mingw-libvirt-spec.in: Likewise.
* cfg.mk (sc_spec_indentation): New syntax check to enforce it.
This commit is contained in:
Eric Blake 2013-01-09 13:50:03 -07:00
parent 790f912b46
commit c8f79c9b29
3 changed files with 452 additions and 437 deletions
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19
cfg.mk
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@ -1,5 +1,5 @@
# Customize Makefile.maint. -*- makefile -*-
# Copyright (C) 2008-2012 Red Hat, Inc.
# Copyright (C) 2008-2013 Red Hat, Inc.
# Copyright (C) 2003-2008 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
@ -623,6 +623,23 @@ sc_preprocessor_indentation:
echo '$(ME): skipping test $@: cppi not installed' 1>&2; \
fi
# Enforce similar spec file indentation style, by running cppi on a
# (comment-only) C file that mirrors the same layout as the spec file.
sc_spec_indentation:
@if cppi --version >/dev/null 2>&1; then \
for f in $$($(VC_LIST_EXCEPT) | grep '\.spec\.in$$'); do \
sed -e 's|#|// #|; s|%ifn*\(arch\)* |#if a // |' \
-e 's/%\(else\|endif\|define\)/#\1/' \
-e 's/^\( *\)\1\1\1#/#\1/' \
-e 's|^\( *[^#/ ]\)|// \1|; s|^\( */[^/]\)|// \1|' $$f \
| cppi -a -c 2>&1 | sed "s|standard input|$$f|"; \
done | { if grep . >&2; then false; else :; fi; } \
|| { echo '$(ME): incorrect preprocessor indentation' 1>&2; \
exit 1; }; \
else \
echo '$(ME): skipping test $@: cppi not installed' 1>&2; \
fi
sc_copyright_format:
@require='Copyright .*Red 'Hat', Inc\.' \
containing='Copyright .*Red 'Hat \

854
libvirt.spec.in
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File diff suppressed because it is too large Load Diff

16
mingw-libvirt.spec.in
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@ -17,9 +17,9 @@
# RHEL ships ESX but not PowerHypervisor, HyperV, or libxenserver (xenapi)
%if 0%{?rhel}
%define with_phyp 0
%define with_xenapi 0
%define with_hyperv 0
%define with_phyp 0
%define with_xenapi 0
%define with_hyperv 0
%endif
Name: mingw-libvirt
@ -111,23 +111,23 @@ MinGW Windows libvirt virtualization library, static version.
%build
%if ! %{with_phyp}
%define _without_phyp --without-phyp
%define _without_phyp --without-phyp
%endif
%if ! %{with_esx}
%define _without_esx --without-esx
%define _without_esx --without-esx
%endif
%if ! %{with_hyperv}
%define _without_hyperv --without-hyperv
%define _without_hyperv --without-hyperv
%endif
%if ! %{with_xenapi}
%define _without_xenapi --without-xenapi
%define _without_xenapi --without-xenapi
%endif
%if ! %{with_parallels}
%define _without_parallels --without-parallels
%define _without_parallels --without-parallels
%endif
%if 0%{?enable_autotools}