meson: Detect rst2html5 and rst2man only when needed

Detect these commands in docs/meson.build, i.e. only when
users enable documentation.

Signed-off-by: Ivan Teterevkov <ivan.teterevkov@nutanix.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This commit is contained in:
Ivan Teterevkov 2022-01-13 08:40:56 +00:00 committed by Andrea Bolognani
parent 717f1cc4d1
commit 19407e8d7d
2 changed files with 41 additions and 31 deletions

View File

@ -171,6 +171,47 @@ docs_lxc_api_xml = docs_api_generated[1]
docs_qemu_api_xml = docs_api_generated[2]
docs_admin_api_xml = docs_api_generated[3]
docs_programs_groups = [
{ 'name': 'rst2html5', 'prog': [ 'rst2html5', 'rst2html5.py', 'rst2html5-3' ] },
{ 'name': 'rst2man', 'prog': [ 'rst2man', 'rst2man.py', 'rst2man-3' ] },
]
foreach item : docs_programs_groups
prog = find_program(item.get('prog'), dirs: libvirt_sbin_path)
varname = item.get('name').underscorify()
conf.set_quoted(varname.to_upper(), prog.path())
set_variable('@0@_prog'.format(varname), prog)
endforeach
# There are two versions of rst2html5 in the wild: one is the version
# coming from the docutils package, and the other is the one coming
# from the rst2html5 package. These versions are subtly different,
# and the libvirt documentation can only be successfully generated
# using the docutils version. Every now and then, users will report
# build failures that can be traced back to having the wrong version
# installed.
#
# The only reliable way to tell the two binaries apart seems to be
# looking look at their version information: the docutils version
# will report
#
# rst2html5 (Docutils ..., Python ..., on ...)
#
# whereas the rst2html5 version will report
#
# rst2html5 ... (Docutils ..., Python ..., on ...)
#
# with the additional bit of information being the version number for
# the rst2html5 package itself.
#
# Use this knowledge to detect the version that we know doesn't work
# for building libvirt and reject it
rst2html5_version = run_command(rst2html5_prog, '--version')
rst2html5_version = rst2html5_version.stdout().split(' ')
if rst2html5_version[1] != '(Docutils'
error('Please uninstall the rst2html5 package and install the docutils package')
endif
docs_rst2html5_gen = generator(
rst2html5_prog,
output: '@BASENAME@.html.in',

View File

@ -788,8 +788,6 @@ required_programs = [
required_programs_groups = [
{ 'name': 'rpcgen', 'prog': [ 'rpcgen', 'portable-rpcgen' ] },
{ 'name': 'rst2html5', 'prog': [ 'rst2html5', 'rst2html5.py', 'rst2html5-3' ] },
{ 'name': 'rst2man', 'prog': [ 'rst2man', 'rst2man.py', 'rst2man-3' ] },
]
if host_machine.system() == 'freebsd'
@ -810,35 +808,6 @@ foreach item : required_programs_groups
set_variable('@0@_prog'.format(varname), prog)
endforeach
# There are two versions of rst2html5 in the wild: one is the version
# coming from the docutils package, and the other is the one coming
# from the rst2html5 package. These versions are subtly different,
# and the libvirt documentation can only be successfully generated
# using the docutils version. Every now and then, users will report
# build failures that can be traced back to having the wrong version
# installed.
#
# The only reliable way to tell the two binaries apart seems to be
# looking look at their version information: the docutils version
# will report
#
# rst2html5 (Docutils ..., Python ..., on ...)
#
# whereas the rst2html5 version will report
#
# rst2html5 ... (Docutils ..., Python ..., on ...)
#
# with the additional bit of information being the version number for
# the rst2html5 package itself.
#
# Use this knowledge to detect the version that we know doesn't work
# for building libvirt and reject it
rst2html5_version = run_command(rst2html5_prog, '--version')
rst2html5_version = rst2html5_version.stdout().split(' ')
if rst2html5_version[1] != '(Docutils'
error('Please uninstall the rst2html5 package and install the docutils package')
endif
# optional programs
optional_programs = [