gst-uninstalled.py

   1 #!/usr/bin/env python3
   2
   3 import argparse
   4 import os
   5 import re
   6 import site
   7 import subprocess
   8
   9
  10 SCRIPTDIR = os.path.abspath(os.path.dirname(__file__))
  11
  12
  13 def prepend_env_var(env, var, value):
  14     env[var] = os.pathsep + value + os.pathsep + env.get(var, "")
  15     env[var] = env[var].replace(os.pathsep + os.pathsep, os.pathsep).strip(os.pathsep)
  16
  17
  18 def set_prompt_var(options, env):
  19     ps1 = env.get("PS1")
  20     if ps1:
  21         env["PS1"] = "[gst-%s] %s" % (options.gst_version, ps1)
  22
  23     prompt = env.get("PROMPT")
  24     if prompt:
  25         env["PROMPT"] = "[gst-%s] %s" % (options.gst_version, prompt)
  26
  27
  28 def get_subprocess_env(options):
  29     env = os.environ.copy()
  30
  31     PATH = env.get("PATH", "")
  32     subprojects_path = os.path.join(options.builddir, "subprojects")
  33     for proj in os.listdir(subprojects_path):
  34         projpath = os.path.join(subprojects_path, proj)
  35         if not os.path.exists(projpath):
  36             print("Subproject %s does not exist in %s.,\n"
  37                   " Make sure to build everything properly "
  38                   "and try again." % (proj, projpath))
  39             exit(1)
  40
  41         toolsdir = os.path.join(projpath, "tools")
  42         if os.path.exists(toolsdir):
  43             prepend_env_var(env, "PATH", toolsdir)
  44
  45         prepend_env_var(env, "GST_PLUGIN_PATH", projpath)
  46
  47     env["CURRENT_GST"] = os.path.normpath(SCRIPTDIR)
  48     env["GST_VALIDATE_SCENARIOS_PATH"] = os.path.normpath(
  49         "%s/subprojects/gst-devtools/validate/data/scenarios" % SCRIPTDIR)
  50     env["GST_VALIDATE_PLUGIN_PATH"] = os.path.normpath(
  51         "%s/subprojects/gst-devtools/validate/plugins" % options.builddir)
  52     env["GST_VALIDATE_APPS_DIR"] = os.path.normpath(
  53         "%s/subprojects/gst-editing-services/tests/validate" % SCRIPTDIR)
  54     prepend_env_var(env, "PATH", os.path.normpath(
  55         "%s/subprojects/gst-devtools/validate/tools" % options.builddir))
  56     prepend_env_var(env, "PATH", os.path.join(SCRIPTDIR, 'meson'))
  57     env["PATH"] += os.pathsep + PATH
  58     env["GST_VERSION"] = options.gst_version
  59     env["GST_PLUGIN_SYSTEM_PATH"] = ""
  60     env["GST_PLUGIN_SCANNER"] = os.path.normpath(
  61         "%s/subprojects/gstreamer/libs/gst/helpers/gst-plugin-scanner" % options.builddir)
  62     env["GST_PTP_HELPER"] = os.path.normpath(
  63         "%s/subprojects/gstreamer/libs/gst/helpers/gst-ptp-helper" % options.builddir)
  64     env["GST_REGISTRY"] = os.path.normpath(options.builddir + "/registry.dat")
  65     prepend_env_var(env, 'PYTHONPATH', ':'.join(site.getsitepackages()))
  66     env["PYTHONPATH"] = env["PYTHONPATH"] + ':' + os.path.normpath(
  67         options.builddir + '/subprojects/gst-python')
  68
  69     filename = "meson.build"
  70     sharedlib_reg = re.compile(r'\.so$|\.dylib$')
  71     typelib_reg = re.compile(r'.*\.typelib$')
  72     for root, dirnames, filenames in os.walk(os.path.join(options.builddir,
  73                                                           'subprojects')):
  74         has_typelib = False
  75         has_shared = False
  76         for filename in filenames:
  77             if typelib_reg.search(filename) and not has_typelib:
  78                 has_typelib = True
  79                 prepend_env_var(env, "GI_TYPELIB_PATH",
  80                                 os.path.join(options.builddir, root))
  81                 if has_shared:
  82                     break
  83             elif sharedlib_reg.search(filename) and not has_shared:
  84                 has_shared = True
  85                 prepend_env_var(env, "LD_LIBRARY_PATH",
  86                                 os.path.join(options.builddir, root))
  87                 prepend_env_var(env, "DYLD_LIBRARY_PATH",
  88                                 os.path.join(options.builddir, root))
  89                 if has_typelib:
  90                     break
  91
  92
  93     set_prompt_var(options, env)
  94
  95     return env
  96
  97
  98 if __name__ == "__main__":
  99     parser = argparse.ArgumentParser(prog="gstreamer-uninstalled")
 100
 101     parser.add_argument("--builddir",
 102                         default=os.path.join(SCRIPTDIR, "build"),
 103                         help="The meson build directory")
 104     parser.add_argument("--gst-version", default="master",
 105                         help="The GStreamer major version")
 106     options, args = parser.parse_known_args()
 107
 108     if not os.path.exists(options.builddir):
 109         print("GStreamer not built in %s\n\nBuild it and try again" %
 110               options.builddir)
 111         exit(1)
 112
 113     if not args:
 114         if os.name is 'nt':
 115             args = [os.environ.get("COMSPEC", r"C:\WINDOWS\system32\cmd.exe")]
 116         else:
 117             args = [os.environ.get("SHELL", os.path.realpath("/bin/sh"))]
 118         if args[0] == "/bin/bash":
 119             args.append("--noprofile")
 120
 121     try:
 122         exit(subprocess.call(args, env=get_subprocess_env(options)))
 123     except subprocess.CalledProcessError as e:
 124         exit(e.returncode)