#!/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 common import get_meson from common import git 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): env[var] = os.pathsep + value + os.pathsep + env.get(var, "") 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$') pluginpath_reg = re.compile(r'lib.*' + re.escape(os.path.normpath('/gstreamer-1.0/'))) 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, "PATH", os.path.join(PREFIX_DIR, 'bin')) prepend_env_var(env, lib_path_envvar, os.path.join(PREFIX_DIR, 'lib')) 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')) 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: 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 if target['installed']: if pluginpath_reg.search(os.path.normpath(stringify(target['install_filename']))): prepend_env_var(env, "GST_PLUGIN_PATH", os.path.join(options.builddir, root)) 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)) 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) 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") 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)