gstreamer/gst-uninstalled.py
Mathieu Duponchelle dc325b42f5 uninstalled: update XDG_DATA_DIRS to point to our devhelp index
When using hotdoc, one can build the documentation for a single
subproject (eg. the GL plugins). In that case, hotdoc will look
up links in devhelp indexes available in standard locations.

To make sure this case works, we thus need to add the path to
our devhelp index to XDG_DATA_DIRS. This also means when running
devhelp from inside the environment, the devhelp books produced
by hotdoc will now show up.
2019-05-29 00:34:50 +02:00

294 lines
12 KiB
Python
Executable file

#!/usr/bin/env python3
import argparse
import contextlib
import json
import os
import platform
import re
import site
import shutil
import subprocess
import sys
import tempfile
import pathlib
from distutils.sysconfig import get_python_lib
from distutils.util import strtobool
from scripts.common import get_meson
from scripts.common import git
from scripts.common import win32_get_short_path_name
SCRIPTDIR = os.path.dirname(os.path.realpath(__file__))
PREFIX_DIR = os.path.join(SCRIPTDIR, 'prefix')
# Use '_build' as the builddir instead of 'build'
DEFAULT_BUILDDIR = os.path.join(SCRIPTDIR, 'build')
if not os.path.exists(DEFAULT_BUILDDIR):
DEFAULT_BUILDDIR = os.path.join(SCRIPTDIR, '_build')
def listify(o):
if isinstance(o, str):
return [o]
if isinstance(o, list):
return o
raise AssertionError('Object {!r} must be a string or a list'.format(o))
def stringify(o):
if isinstance(o, str):
return o
if isinstance(o, list):
if len(o) == 1:
return o[0]
raise AssertionError('Did not expect object {!r} to have more than one element'.format(o))
raise AssertionError('Object {!r} must be a string or a list'.format(o))
def prepend_env_var(env, var, value):
# Try not to exceed maximum length limits for env vars on Windows
if os.name is 'nt':
value = win32_get_short_path_name(value)
env_val = env.get(var, '')
val = os.pathsep + value + os.pathsep
# Don't add the same value twice
if val in env_val or env_val.startswith(value + os.pathsep):
return
env[var] = val + env_val
env[var] = env[var].replace(os.pathsep + os.pathsep, os.pathsep).strip(os.pathsep)
def get_subprocess_env(options, gst_version):
env = os.environ.copy()
env["CURRENT_GST"] = os.path.normpath(SCRIPTDIR)
env["GST_VALIDATE_SCENARIOS_PATH"] = os.path.normpath(
"%s/subprojects/gst-devtools/validate/data/scenarios" % SCRIPTDIR)
env["GST_VALIDATE_PLUGIN_PATH"] = os.path.normpath(
"%s/subprojects/gst-devtools/validate/plugins" % options.builddir)
env["GST_VALIDATE_APPS_DIR"] = os.path.normpath(
"%s/subprojects/gst-editing-services/tests/validate" % SCRIPTDIR)
prepend_env_var(env, "PATH", os.path.normpath(
"%s/subprojects/gst-devtools/validate/tools" % options.builddir))
prepend_env_var(env, "PATH", os.path.join(SCRIPTDIR, 'meson'))
env["GST_VERSION"] = gst_version
env["GST_ENV"] = 'gst-' + gst_version
env["GST_PLUGIN_SYSTEM_PATH"] = ""
env["GST_PLUGIN_SCANNER"] = os.path.normpath(
"%s/subprojects/gstreamer/libs/gst/helpers/gst-plugin-scanner" % options.builddir)
env["GST_PTP_HELPER"] = os.path.normpath(
"%s/subprojects/gstreamer/libs/gst/helpers/gst-ptp-helper" % options.builddir)
env["GST_REGISTRY"] = os.path.normpath(options.builddir + "/registry.dat")
sharedlib_reg = re.compile(r'\.so|\.dylib|\.dll')
typelib_reg = re.compile(r'.*\.typelib$')
if os.name is 'nt':
lib_path_envvar = 'PATH'
elif platform.system() == 'Darwin':
lib_path_envvar = 'DYLD_LIBRARY_PATH'
else:
lib_path_envvar = 'LD_LIBRARY_PATH'
prepend_env_var(env, "GST_PLUGIN_PATH", os.path.join(SCRIPTDIR, 'subprojects',
'gst-python', 'plugin'))
prepend_env_var(env, "GST_PLUGIN_PATH", os.path.join(PREFIX_DIR, 'lib',
'gstreamer-1.0'))
prepend_env_var(env, "GST_PLUGIN_PATH", os.path.join(options.builddir, 'subprojects',
'libnice', 'gst'))
prepend_env_var(env, "GST_VALIDATE_SCENARIOS_PATH", os.path.join(
PREFIX_DIR, 'share', 'gstreamer-1.0', 'validate', 'scenarios'))
prepend_env_var(env, "GI_TYPELIB_PATH", os.path.join(PREFIX_DIR, 'lib',
'lib', 'girepository-1.0'))
prepend_env_var(env, "PKG_CONFIG_PATH", os.path.join(PREFIX_DIR, 'lib', 'pkgconfig'))
# gst-indent
prepend_env_var(env, "PATH", os.path.join(SCRIPTDIR, 'gstreamer', 'tools'))
# Library and binary search paths
prepend_env_var(env, "PATH", os.path.join(PREFIX_DIR, 'bin'))
if lib_path_envvar != 'PATH':
prepend_env_var(env, lib_path_envvar, os.path.join(PREFIX_DIR, 'lib'))
elif 'QMAKE' in os.environ:
# There's no RPATH on Windows, so we need to set PATH for the qt5 DLLs
prepend_env_var(env, 'PATH', os.path.dirname(os.environ['QMAKE']))
meson = get_meson()
targets_s = subprocess.check_output(meson + ['introspect', options.builddir, '--targets'])
targets = json.loads(targets_s.decode())
paths = set()
mono_paths = set()
srcdir_path = pathlib.Path(options.srcdir)
for target in targets:
filenames = listify(target['filename'])
for filename in filenames:
if filename.startswith(options.sysroot):
filename = filename[len(options.sysroot):]
root = os.path.dirname(filename)
if srcdir_path / "subprojects/gst-devtools/validate/plugins" in (srcdir_path / root).parents:
continue
if filename.endswith('.dll'):
mono_paths.add(os.path.join(options.builddir, root))
if typelib_reg.search(filename):
prepend_env_var(env, "GI_TYPELIB_PATH",
os.path.join(options.builddir, root))
elif sharedlib_reg.search(filename):
if not target['type'].startswith('shared'):
continue
prepend_env_var(env, lib_path_envvar,
os.path.join(options.builddir, root))
elif target['type'] == 'executable' and target['installed']:
paths.add(os.path.join(options.builddir, root))
with open(os.path.join(options.builddir, 'GstPluginsPath.json')) as f:
for plugin_path in json.load(f):
prepend_env_var(env, 'GST_PLUGIN_PATH', plugin_path)
for p in paths:
prepend_env_var(env, 'PATH', p)
if os.name != 'nt':
for p in mono_paths:
prepend_env_var(env, "MONO_PATH", p)
presets = set()
encoding_targets = set()
pkg_dirs = set()
python_dirs = set(["%s/subprojects/gstreamer/libs/gst/helpers/" % options.srcdir])
if '--installed' in subprocess.check_output(meson + ['introspect', '-h']).decode():
installed_s = subprocess.check_output(meson + ['introspect', options.builddir, '--installed'])
for path, installpath in json.loads(installed_s.decode()).items():
installpath_parts = pathlib.Path(installpath).parts
path_parts = pathlib.Path(path).parts
# We want to add all python modules to the PYTHONPATH
# in a manner consistent with the way they would be imported:
# For example if the source path /home/meh/foo/bar.py
# is to be installed in /usr/lib/python/site-packages/foo/bar.py,
# we want to add /home/meh to the PYTHONPATH.
# This will only work for projects where the paths to be installed
# mirror the installed directory layout, for example if the path
# is /home/meh/baz/bar.py and the install path is
# /usr/lib/site-packages/foo/bar.py , we will not add anything
# to PYTHONPATH, but the current approach works with pygobject
# and gst-python at least.
if 'site-packages' in installpath_parts:
install_subpath = os.path.join(*installpath_parts[installpath_parts.index('site-packages') + 1:])
if path.endswith(install_subpath):
python_dirs.add(path[:len (install_subpath) * -1])
if path.endswith('.prs'):
presets.add(os.path.dirname(path))
elif path.endswith('.gep'):
encoding_targets.add(
os.path.abspath(os.path.join(os.path.dirname(path), '..')))
elif path.endswith('.pc'):
# Is there a -uninstalled pc file for this file?
uninstalled = "{0}-uninstalled.pc".format(path[:-3])
if os.path.exists(uninstalled):
pkg_dirs.add(os.path.dirname(path))
if path.endswith('gstomx.conf'):
prepend_env_var(env, 'GST_OMX_CONFIG_DIR', os.path.dirname(path))
for p in presets:
prepend_env_var(env, 'GST_PRESET_PATH', p)
for t in encoding_targets:
prepend_env_var(env, 'GST_ENCODING_TARGET_PATH', t)
for pkg_dir in pkg_dirs:
prepend_env_var(env, "PKG_CONFIG_PATH", pkg_dir)
prepend_env_var(env, "PKG_CONFIG_PATH", os.path.join(options.builddir,
'subprojects',
'gst-plugins-good',
'pkgconfig'))
for python_dir in python_dirs:
prepend_env_var(env, 'PYTHONPATH', python_dir)
mesonpath = os.path.join(SCRIPTDIR, "meson")
if os.path.join(mesonpath):
# Add meson/ into PYTHONPATH if we are using a local meson
prepend_env_var(env, 'PYTHONPATH', mesonpath)
# For devhelp books
if not 'XDG_DATA_DIRS' in env or not env['XDG_DATA_DIRS']:
# Preserve default paths when empty
prepend_env_var(env, 'XDG_DATA_DIRS', '/usr/local/share/:/usr/share/')
prepend_env_var (env, 'XDG_DATA_DIRS', os.path.join(options.builddir,
'subprojects',
'gst-docs',
'GStreamer-doc'))
return env
def get_windows_shell():
command = ['powershell.exe' ,'-noprofile', '-executionpolicy', 'bypass', '-file', 'cmd_or_ps.ps1']
result = subprocess.check_output(command)
return result.decode().strip()
# https://stackoverflow.com/questions/1871549/determine-if-python-is-running-inside-virtualenv
def in_venv():
return (hasattr(sys, 'real_prefix') or
(hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix))
if __name__ == "__main__":
parser = argparse.ArgumentParser(prog="gstreamer-uninstalled")
parser.add_argument("--builddir",
default=DEFAULT_BUILDDIR,
help="The meson build directory")
parser.add_argument("--srcdir",
default=SCRIPTDIR,
help="The top level source directory")
parser.add_argument("--sysroot",
default='',
help="The sysroot path used during cross-compilation")
options, args = parser.parse_known_args()
if not os.path.exists(options.builddir):
print("GStreamer not built in %s\n\nBuild it and try again" %
options.builddir)
exit(1)
options.builddir = os.path.abspath(options.builddir)
if not os.path.exists(options.srcdir):
print("The specified source dir does not exist" %
options.srcdir)
exit(1)
# The following incantation will retrieve the current branch name.
gst_version = git("rev-parse", "--symbolic-full-name", "--abbrev-ref", "HEAD",
repository_path=options.srcdir).strip('\n')
if not args:
if os.name is 'nt':
shell = get_windows_shell()
if shell == 'powershell.exe':
args = ['powershell.exe']
args += ['-NoLogo', '-NoExit']
prompt = 'function global:prompt { "[gst-' + gst_version + '"+"] PS " + $PWD + "> "}'
args += ['-Command', prompt]
else:
args = [os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")]
args += ['/k', 'prompt [gst-{}] $P$G'.format(gst_version)]
else:
args = [os.environ.get("SHELL", os.path.realpath("/bin/sh"))]
if "bash" in args[0] and not strtobool(os.environ.get("GST_BUILD_DISABLE_PS1_OVERRIDE", r"FALSE")):
bashrc = os.path.expanduser('~/.bashrc')
if os.path.exists(bashrc):
tmprc = tempfile.NamedTemporaryFile(mode='w')
with open(bashrc, 'r') as src:
shutil.copyfileobj(src, tmprc)
tmprc.write('\nexport PS1="[gst-%s] $PS1"' % gst_version)
tmprc.flush()
# Let the GC remove the tmp file
args.append("--rcfile")
args.append(tmprc.name)
try:
exit(subprocess.call(args, close_fds=False,
env=get_subprocess_env(options, gst_version)))
except subprocess.CalledProcessError as e:
exit(e.returncode)