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gst-env: Improve coding style and cleanup

Browse source 
* Remove unused variables
* Remove unused imports
* Apply pycodestyle style suggestions
  - Missing newlines
  - spaces before brackets
  - Wrong indentations

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1829>
This commit is contained in:
Sebastian Fricke 2022-02-16 10:17:23 +01:00 committed by Tim-Philipp Müller
parent a81398b70f
commit 252f9e39d6
1 changed files with 30 additions and 22 deletions
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52
gst-env.py
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@ -1,17 +1,14 @@
#!/usr/bin/env python3 #!/usr/bin/env python3
import argparse import argparse
import contextlib
import glob import glob
import json import json
import os import os
import platform import platform
import re import re
import site
import shlex import shlex
import shutil import shutil
import subprocess import subprocess
import sys
import tempfile import tempfile
import pathlib import pathlib
import signal import signal
@ -42,7 +39,7 @@ SHAREDLIB_REG = re.compile(r'\.so|\.dylib|\.dll')
GSTPLUGIN_FILEPATH_REG_TEMPLATE = r'.*/{libdir}/gstreamer-1.0/[^/]+$' GSTPLUGIN_FILEPATH_REG_TEMPLATE = r'.*/{libdir}/gstreamer-1.0/[^/]+$'
GSTPLUGIN_FILEPATH_REG = None GSTPLUGIN_FILEPATH_REG = None
BC_RC = ''' BC_RC = '''
BASH_COMPLETION_SCRIPTS="{bash_completions}" BASH_COMPLETION_SCRIPTS="{bash_completions}"
BASH_COMPLETION_PATHS="{bash_completions_paths}" BASH_COMPLETION_PATHS="{bash_completions_paths}"
for p in $BASH_COMPLETION_PATHS; do for p in $BASH_COMPLETION_PATHS; do
@ -71,6 +68,7 @@ def listify(o):
return o return o
raise AssertionError('Object {!r} must be a string or a list'.format(o)) raise AssertionError('Object {!r} must be a string or a list'.format(o))
def stringify(o): def stringify(o):
if isinstance(o, str): if isinstance(o, str):
return o return o
@ -80,6 +78,7 @@ def stringify(o):
raise AssertionError('Did not expect object {!r} to have more than one element'.format(o)) raise AssertionError('Did not expect object {!r} to have more than one element'.format(o))
raise AssertionError('Object {!r} must be a string or a list'.format(o)) raise AssertionError('Object {!r} must be a string or a list'.format(o))
def prepend_env_var(env, var, value, sysroot): def prepend_env_var(env, var, value, sysroot):
if var is None: if var is None:
return return
@ -96,6 +95,7 @@ def prepend_env_var(env, var, value, sysroot):
env[var] = val + env_val env[var] = val + env_val
env[var] = env[var].replace(os.pathsep + os.pathsep, os.pathsep).strip(os.pathsep) env[var] = env[var].replace(os.pathsep + os.pathsep, os.pathsep).strip(os.pathsep)
def get_target_install_filename(target, filename): def get_target_install_filename(target, filename):
''' '''
Checks whether this file is one of the files installed by the target Checks whether this file is one of the files installed by the target
@ -106,6 +106,7 @@ def get_target_install_filename(target, filename):
return install_filename return install_filename
return None return None
def get_pkgconfig_variable_from_pcfile(pcfile, varname): def get_pkgconfig_variable_from_pcfile(pcfile, varname):
variables = {} variables = {}
substre = re.compile('\$\{[^${}]+\}') substre = re.compile('\$\{[^${}]+\}')
@ -123,6 +124,7 @@ def get_pkgconfig_variable_from_pcfile(pcfile, varname):
variables[key] = value variables[key] = value
return variables.get(varname, '') return variables.get(varname, '')
@lru_cache() @lru_cache()
def get_pkgconfig_variable(builddir, pcname, varname): def get_pkgconfig_variable(builddir, pcname, varname):
''' '''
@ -147,6 +149,7 @@ def is_gio_module(target, filename, builddir):
return False return False
return True return True
def is_library_target_and_not_plugin(target, filename): def is_library_target_and_not_plugin(target, filename):
''' '''
Don't add plugins to PATH/LD_LIBRARY_PATH because: Don't add plugins to PATH/LD_LIBRARY_PATH because:
@ -169,6 +172,7 @@ def is_library_target_and_not_plugin(target, filename):
return False return False
return True return True
def is_binary_target_and_in_path(target, filename, bindir): def is_binary_target_and_in_path(target, filename, bindir):
if target['type'] != 'executable': if target['type'] != 'executable':
return False return False
@ -200,6 +204,7 @@ def get_wine_subprocess_env(options, env):
return env return env
def setup_gdb(options): def setup_gdb(options):
python_paths = set() python_paths = set()
@ -242,20 +247,22 @@ def setup_gdb(options):
return python_paths return python_paths
def is_bash_completion_available (options):
return os.path.exists(os.path.join(options.builddir, 'subprojects/gstreamer/data/bash-completion/helpers/gst')) def is_bash_completion_available(options):
return os.path.exists(os.path.join(options.builddir, 'subprojects/gstreamer/data/bash-completion/helpers/gst'))
def get_subprocess_env(options, gst_version): def get_subprocess_env(options, gst_version):
env = os.environ.copy() env = os.environ.copy()
env["CURRENT_GST"] = os.path.normpath(SCRIPTDIR) env["CURRENT_GST"] = os.path.normpath(SCRIPTDIR)
env["GST_VERSION"] = gst_version env["GST_VERSION"] = gst_version
prepend_env_var (env, "GST_VALIDATE_SCENARIOS_PATH", os.path.normpath( prepend_env_var(env, "GST_VALIDATE_SCENARIOS_PATH", os.path.normpath(
"%s/subprojects/gst-devtools/validate/data/scenarios" % SCRIPTDIR), "%s/subprojects/gst-devtools/validate/data/scenarios" % SCRIPTDIR),
options.sysroot) options.sysroot)
env["GST_VALIDATE_PLUGIN_PATH"] = os.path.normpath( env["GST_VALIDATE_PLUGIN_PATH"] = os.path.normpath(
"%s/subprojects/gst-devtools/validate/plugins" % options.builddir) "%s/subprojects/gst-devtools/validate/plugins" % options.builddir)
prepend_env_var (env, "GST_VALIDATE_APPS_DIR", os.path.normpath( prepend_env_var(env, "GST_VALIDATE_APPS_DIR", os.path.normpath(
"%s/subprojects/gst-editing-services/tests/validate" % SCRIPTDIR), "%s/subprojects/gst-editing-services/tests/validate" % SCRIPTDIR),
options.sysroot) options.sysroot)
env["GST_ENV"] = 'gst-' + gst_version env["GST_ENV"] = 'gst-' + gst_version
@ -264,10 +271,10 @@ def get_subprocess_env(options, gst_version):
"%s/subprojects/gst-devtools/validate/tools" % options.builddir), "%s/subprojects/gst-devtools/validate/tools" % options.builddir),
options.sysroot) options.sysroot)
prepend_env_var (env, "GST_VALIDATE_SCENARIOS_PATH", os.path.normpath( prepend_env_var(env, "GST_VALIDATE_SCENARIOS_PATH", os.path.normpath(
"%s/subprojects/gst-examples/webrtc/check/validate/scenarios" % "%s/subprojects/gst-examples/webrtc/check/validate/scenarios" %
SCRIPTDIR), options.sysroot) SCRIPTDIR), options.sysroot)
prepend_env_var (env, "GST_VALIDATE_APPS_DIR", os.path.normpath( prepend_env_var(env, "GST_VALIDATE_APPS_DIR", os.path.normpath(
"%s/subprojects/gst-examples/webrtc/check/validate/apps" % "%s/subprojects/gst-examples/webrtc/check/validate/apps" %
SCRIPTDIR), options.sysroot) SCRIPTDIR), options.sysroot)
@ -404,7 +411,6 @@ def get_subprocess_env(options, gst_version):
installed_s = subprocess.check_output(meson + ['introspect', options.builddir, '--installed']) installed_s = subprocess.check_output(meson + ['introspect', options.builddir, '--installed'])
for path, installpath in json.loads(installed_s.decode()).items(): for path, installpath in json.loads(installed_s.decode()).items():
installpath_parts = pathlib.Path(installpath).parts installpath_parts = pathlib.Path(installpath).parts
path_parts = pathlib.Path(path).parts
# We want to add all python modules to the PYTHONPATH # We want to add all python modules to the PYTHONPATH
# in a manner consistent with the way they would be imported: # in a manner consistent with the way they would be imported:
@ -423,7 +429,7 @@ def get_subprocess_env(options, gst_version):
if os.path.commonprefix(["gi/overrides", install_subpath]): if os.path.commonprefix(["gi/overrides", install_subpath]):
overrides_dirs.add(os.path.dirname(path)) overrides_dirs.add(os.path.dirname(path))
else: else:
python_dirs.add(path[:len (install_subpath) * -1]) python_dirs.add(path[:len(install_subpath) * -1])
if path.endswith('.prs'): if path.endswith('.prs'):
presets.add(os.path.dirname(path)) presets.add(os.path.dirname(path))
@ -466,11 +472,11 @@ def get_subprocess_env(options, gst_version):
# Preserve default paths when empty # Preserve default paths when empty
prepend_env_var(env, 'XDG_DATA_DIRS', '/usr/local/share/:/usr/share/', '') prepend_env_var(env, 'XDG_DATA_DIRS', '/usr/local/share/:/usr/share/', '')
prepend_env_var (env, 'XDG_DATA_DIRS', os.path.join(options.builddir, prepend_env_var(env, 'XDG_DATA_DIRS', os.path.join(options.builddir,
'subprojects', 'subprojects',
'gst-docs', 'gst-docs',
'GStreamer-doc'), 'GStreamer-doc'),
options.sysroot) options.sysroot)
if 'XDG_CONFIG_DIRS' not in env or not env['XDG_CONFIG_DIRS']: if 'XDG_CONFIG_DIRS' not in env or not env['XDG_CONFIG_DIRS']:
# Preserve default paths when empty # Preserve default paths when empty
@ -481,12 +487,14 @@ def get_subprocess_env(options, gst_version):
return env return env
def get_windows_shell(): def get_windows_shell():
command = ['powershell.exe' ,'-noprofile', '-executionpolicy', 'bypass', '-file', command = ['powershell.exe', '-noprofile', '-executionpolicy', 'bypass', '-file',
os.path.join(SCRIPTDIR, 'data', 'misc', 'cmd_or_ps.ps1')] os.path.join(SCRIPTDIR, 'data', 'misc', 'cmd_or_ps.ps1')]
result = subprocess.check_output(command) result = subprocess.check_output(command)
return result.decode().strip() return result.decode().strip()
if __name__ == "__main__": if __name__ == "__main__":
parser = argparse.ArgumentParser(prog="gst-env") parser = argparse.ArgumentParser(prog="gst-env")
@ -536,10 +544,10 @@ if __name__ == "__main__":
# The following incantation will retrieve the current branch name. # The following incantation will retrieve the current branch name.
try: try:
gst_version = git("rev-parse", "--symbolic-full-name", "--abbrev-ref", "HEAD", gst_version = git("rev-parse", "--symbolic-full-name", "--abbrev-ref", "HEAD",
repository_path=options.srcdir).strip('\n') repository_path=options.srcdir).strip('\n')
except subprocess.CalledProcessError: except subprocess.CalledProcessError:
gst_version = "unknown" gst_version = "unknown"
if options.wine: if options.wine:
gst_version += '-' + os.path.basename(options.wine) gst_version += '-' + os.path.basename(options.wine)
@ -571,7 +579,7 @@ if __name__ == "__main__":
bash_completions_files = [] bash_completions_files = []
for p in BASH_COMPLETION_PATHS: for p in BASH_COMPLETION_PATHS:
if os.path.exists(p): if os.path.exists(p):
bash_completions_files += os.listdir(path=p) bash_completions_files += os.listdir(path=p)
bc_rc = BC_RC.format(bash_completions=' '.join(bash_completions_files), bash_completions_paths=' '.join(BASH_COMPLETION_PATHS)) bc_rc = BC_RC.format(bash_completions=' '.join(bash_completions_files), bash_completions_paths=' '.join(BASH_COMPLETION_PATHS))
tmprc.write(bc_rc) tmprc.write(bc_rc)
tmprc.flush() tmprc.flush()