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meson: use python.get_install_dir() to find the pygobject overrides dir

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Instead of trying to hardcode site-packages paths for different platforms
just use python.get_install_dir() from meson and let it deal with the rest.
Also no longer try to import pygobject, which would otherwise not be
required at build time.

python.get_install_dir() was at the beginning broken on Windows, but
that was fixed in 0.60 via https://github.com/mesonbuild/meson/pull/9156
and since ges now requires >0.60 this can be ignored.

This change was motivated by the install path being wrong under MSYS2, where
the unix install layout is used and the detection code not taking that into
account.

This MR is a continuation of https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/230
see the discussion there for extra context.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3012>
This commit is contained in:
Christoph Reiter 2022-09-10 19:16:39 +02:00 committed by GStreamer Marge Bot
parent 46dbf194bd
commit 472dc4b743
1 changed files with 5 additions and 38 deletions
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43
subprojects/gst-editing-services/meson.build
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@ -278,48 +278,15 @@ if not get_option('examples').disabled()
endif
subdir('docs')
override_detector = '''
import sys
import os
prefix = sys.argv[1]
version = sys.version_info
# If we are installing in the same prefix as PyGobject
# make sure to install in the right place.
import gi.overrides
overrides_path = os.path.dirname(gi.overrides.__file__)
if os.path.commonprefix([overrides_path, prefix]) == prefix:
print(overrides_path)
exit(0)
# Otherwise follow python's way of install site packages inside
# the provided prefix
if os.name == 'posix':
print(os.path.join(
prefix, 'lib', 'python%d.%d' % (version.major, version.minor),
'site-packages', 'gi', 'overrides'))
else:
print(os.path.join(
prefix, 'Lib', 'Python%d%d' % (version.major, version.minor),
'site-packages', 'gi', 'overrides'))
'''
pygi_override_dir = get_option('pygi-overrides-dir')
if pygi_override_dir == ''
cres = run_command(python3, '-c', override_detector, get_option('prefix'), check: false)
if cres.returncode() == 0
pygi_override_dir = cres.stdout().strip()
endif
if cres.stderr() != ''
message(cres.stderr())
endif
pygi_override_dir = python3.get_install_dir(
subdir : join_paths('gi', 'overrides')
)
endif
if pygi_override_dir != ''
message('pygobject overrides directory ' + pygi_override_dir)
subdir('bindings/python')
endif
message('pygobject overrides directory = @0@'.format(pygi_override_dir))
subdir('bindings/python')
# Set release date
if gst_version_nano == 0