gst-uninstalled.py

   1 #!/usr/bin/env python3
   2
   3 import argparse
   4 import os
   5 import re
   6 import site
   7 import shutil
   8 import subprocess
   9 import tempfile
  10
  11
  12 SCRIPTDIR = os.path.abspath(os.path.dirname(__file__))
  13
  14
  15 def prepend_env_var(env, var, value):
  16     env[var] = os.pathsep + value + os.pathsep + env.get(var, "")
  17     env[var] = env[var].replace(os.pathsep + os.pathsep, os.pathsep).strip(os.pathsep)
  18
  19
  20 def get_subprocess_env(options):
  21     env = os.environ.copy()
  22
  23     PATH = env.get("PATH", "")
  24     subprojects_path = os.path.join(options.builddir, "subprojects")
  25     for proj in os.listdir(subprojects_path):
  26         projpath = os.path.join(subprojects_path, proj)
  27         if not os.path.exists(projpath):
  28             print("Subproject %s does not exist in %s.,\n"
  29                   " Make sure to build everything properly "
  30                   "and try again." % (proj, projpath))
  31             exit(1)
  32
  33         toolsdir = os.path.join(projpath, "tools")
  34         if os.path.exists(toolsdir):
  35             prepend_env_var(env, "PATH", toolsdir)
  36
  37         prepend_env_var(env, "GST_PLUGIN_PATH", projpath)
  38
  39     env["CURRENT_GST"] = os.path.normpath(SCRIPTDIR)
  40     env["GST_VALIDATE_SCENARIOS_PATH"] = os.path.normpath(
  41         "%s/subprojects/gst-devtools/validate/data/scenarios" % SCRIPTDIR)
  42     env["GST_VALIDATE_PLUGIN_PATH"] = os.path.normpath(
  43         "%s/subprojects/gst-devtools/validate/plugins" % options.builddir)
  44     env["GST_VALIDATE_APPS_DIR"] = os.path.normpath(
  45         "%s/subprojects/gst-editing-services/tests/validate" % SCRIPTDIR)
  46     prepend_env_var(env, "PATH", os.path.normpath(
  47         "%s/subprojects/gst-devtools/validate/tools" % options.builddir))
  48     prepend_env_var(env, "PATH", os.path.join(SCRIPTDIR, 'meson'))
  49     env["PATH"] += os.pathsep + PATH
  50     env["GST_VERSION"] = options.gst_version
  51     env["GST_ENV"] = 'gst-' + options.gst_version
  52     env["GST_PLUGIN_SYSTEM_PATH"] = ""
  53     env["GST_PLUGIN_SCANNER"] = os.path.normpath(
  54         "%s/subprojects/gstreamer/libs/gst/helpers/gst-plugin-scanner" % options.builddir)
  55     env["GST_PTP_HELPER"] = os.path.normpath(
  56         "%s/subprojects/gstreamer/libs/gst/helpers/gst-ptp-helper" % options.builddir)
  57     env["GST_REGISTRY"] = os.path.normpath(options.builddir + "/registry.dat")
  58     prepend_env_var(env, 'PYTHONPATH', ':'.join(site.getsitepackages()))
  59     env["PYTHONPATH"] = env["PYTHONPATH"] + ':' + os.path.normpath(
  60         options.builddir + '/subprojects/gst-python')
  61
  62     filename = "meson.build"
  63     sharedlib_reg = re.compile(r'\.so$|\.dylib$')
  64     typelib_reg = re.compile(r'.*\.typelib$')
  65     for root, dirnames, filenames in os.walk(os.path.join(options.builddir,
  66                                                           'subprojects')):
  67         has_typelib = False
  68         has_shared = False
  69         for filename in filenames:
  70             if typelib_reg.search(filename) and not has_typelib:
  71                 has_typelib = True
  72                 prepend_env_var(env, "GI_TYPELIB_PATH",
  73                                 os.path.join(options.builddir, root))
  74                 if has_shared:
  75                     break
  76             elif sharedlib_reg.search(filename) and not has_shared:
  77                 has_shared = True
  78                 prepend_env_var(env, "LD_LIBRARY_PATH",
  79                                 os.path.join(options.builddir, root))
  80                 prepend_env_var(env, "DYLD_LIBRARY_PATH",
  81                                 os.path.join(options.builddir, root))
  82                 if has_typelib:
  83                     break
  84
  85     return env
  86
  87
  88 if __name__ == "__main__":
  89     parser = argparse.ArgumentParser(prog="gstreamer-uninstalled")
  90
  91     parser.add_argument("--builddir",
  92                         default=os.path.join(SCRIPTDIR, "build"),
  93                         help="The meson build directory")
  94     parser.add_argument("--gst-version", default="master",
  95                         help="The GStreamer major version")
  96     options, args = parser.parse_known_args()
  97
  98     if not os.path.exists(options.builddir):
  99         print("GStreamer not built in %s\n\nBuild it and try again" %
 100               options.builddir)
 101         exit(1)
 102
 103     if not args:
 104         if os.name is 'nt':
 105             args = [os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")]
 106         else:
 107             args = [os.environ.get("SHELL", os.path.realpath("/bin/sh"))]
 108         if "bash" in args[0]:
 109             bashrc = os.path.expanduser('~/.bashrc')
 110             if os.path.exists(bashrc):
 111                 tmprc = tempfile.NamedTemporaryFile(mode='w')
 112                 with open(bashrc, 'r') as src:
 113                     shutil.copyfileobj(src, tmprc)
 114                 tmprc.write('\nexport PS1="[gst-%s] $PS1"' % options.gst_version)
 115                 tmprc.flush()
 116                 # Let the GC remove the tmp file
 117                 args.append("--rcfile")
 118                 args.append(tmprc.name)
 119
 120     try:
 121         exit(subprocess.call(args, env=get_subprocess_env(options)))
 122     except subprocess.CalledProcessError as e:
 123         exit(e.returncode)