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uninstalled: Simplify our python environment setup

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Not changing the main usersitepackage env but creating our own,
similarly to what a venv would do.
This commit is contained in:
Thibault Saunier 2018-07-23 13:39:19 -04:00
parent 4ef0584295
commit 63e743def6
1 changed files with 11 additions and 43 deletions
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54
gst-uninstalled.py
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@ -73,6 +73,7 @@ def get_subprocess_env(options):
prepend_env_var(env, "GI_TYPELIB_PATH", os.path.join(PREFIX_DIR, 'lib', prepend_env_var(env, "GI_TYPELIB_PATH", os.path.join(PREFIX_DIR, 'lib',
'lib', 'girepository-1.0')) 'lib', 'girepository-1.0'))
prepend_env_var(env, "PKG_CONFIG_PATH", os.path.join(PREFIX_DIR, 'lib', 'pkgconfig')) prepend_env_var(env, "PKG_CONFIG_PATH", os.path.join(PREFIX_DIR, 'lib', 'pkgconfig'))
setup_python_env(options, env)
meson = get_meson() meson = get_meson()
targets_s = subprocess.check_output([sys.executable, meson, 'introspect', options.builddir, '--targets']) targets_s = subprocess.check_output([sys.executable, meson, 'introspect', options.builddir, '--targets'])
@ -150,12 +151,7 @@ def in_venv():
return (hasattr(sys, 'real_prefix') or return (hasattr(sys, 'real_prefix') or
(hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix)) (hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix))
def python_env(options, unset_env=False): def setup_python_env(options, env):
"""
Setup our overrides_hack.py as sitecustomize.py script in user
site-packages if unset_env=False, else unset, previously set
env.
"""
subprojects_path = os.path.join(options.builddir, "subprojects") subprojects_path = os.path.join(options.builddir, "subprojects")
gst_python_path = os.path.join(SCRIPTDIR, "subprojects", "gst-python") gst_python_path = os.path.join(SCRIPTDIR, "subprojects", "gst-python")
if not os.path.exists(os.path.join(subprojects_path, "gst-python")) or \ if not os.path.exists(os.path.join(subprojects_path, "gst-python")) or \
@ -167,46 +163,22 @@ def python_env(options, unset_env=False):
else: else:
sitepackages = site.getusersitepackages() sitepackages = site.getusersitepackages()
if not sitepackages: sitecustomize = os.path.join(
return False subprocess.check_output([sys.executable, '-c', 'import site; print(site.USER_SITE)'],
env={"PYTHONUSERBASE": PREFIX_DIR}).decode().strip("\n"), "sitecustomize.py")
sitecustomize = os.path.join(sitepackages, "sitecustomize.py")
overrides_hack = os.path.join(gst_python_path, "testsuite", "overrides_hack.py") overrides_hack = os.path.join(gst_python_path, "testsuite", "overrides_hack.py")
mesonconfig = os.path.join(gst_python_path, "testsuite", "mesonconfig.py") mesonconfig = os.path.join(gst_python_path, "testsuite", "mesonconfig.py")
mesonconfig_link = os.path.join(sitepackages, "mesonconfig.py") mesonconfig_link = os.path.join(sitepackages, "mesonconfig.py")
if not unset_env: os.makedirs(os.path.dirname(sitecustomize), exist_ok=True)
if os.path.exists(sitecustomize): with contextlib.suppress(FileExistsError):
if os.path.realpath(sitecustomize) == overrides_hack:
print("Customize user site script already linked to the GStreamer one")
return False
old_sitecustomize = os.path.join(sitepackages,
"old.sitecustomize.gstuninstalled.py")
shutil.move(sitecustomize, old_sitecustomize)
elif not os.path.exists(sitepackages):
os.makedirs(sitepackages)
with contextlib.suppress(FileNotFoundError):
os.remove(sitecustomize)
os.remove(mesonconfig_link)
os.symlink(overrides_hack, sitecustomize) os.symlink(overrides_hack, sitecustomize)
with contextlib.suppress(FileExistsError):
os.symlink(mesonconfig, mesonconfig_link) os.symlink(mesonconfig, mesonconfig_link)
return os.path.realpath(sitecustomize) == overrides_hack
else:
if not os.path.realpath(sitecustomize) == overrides_hack:
return False
os.remove(sitecustomize)
os.remove (mesonconfig_link)
old_sitecustomize = os.path.join(sitepackages,
"old.sitecustomize.gstuninstalled.py")
if os.path.exists(old_sitecustomize):
shutil.move(old_sitecustomize, sitecustomize)
return True
env["PYTHONUSERBASE"] = PREFIX_DIR
if sitepackages:
prepend_env_var(env, "PYTHONPATH", sitepackages)
if __name__ == "__main__": if __name__ == "__main__":
parser = argparse.ArgumentParser(prog="gstreamer-uninstalled") parser = argparse.ArgumentParser(prog="gstreamer-uninstalled")
@ -248,12 +220,8 @@ if __name__ == "__main__":
# Let the GC remove the tmp file # Let the GC remove the tmp file
args.append("--rcfile") args.append("--rcfile")
args.append(tmprc.name) args.append(tmprc.name)
python_set = python_env(options)
try: try:
exit(subprocess.call(args, cwd=options.srcdir, close_fds=False, exit(subprocess.call(args, cwd=options.srcdir, close_fds=False,
env=get_subprocess_env(options))) env=get_subprocess_env(options)))
except subprocess.CalledProcessError as e: except subprocess.CalledProcessError as e:
exit(e.returncode) exit(e.returncode)
finally:
if python_set:
python_env(options, unset_env=True)