408 lines
15 KiB
Python
408 lines
15 KiB
Python
# Copyright 2016-2019 Dirk Thomas
|
|
# Licensed under the Apache License, Version 2.0
|
|
|
|
import argparse
|
|
from collections import OrderedDict
|
|
import os
|
|
from pathlib import Path
|
|
import sys
|
|
|
|
|
|
FORMAT_STR_COMMENT_LINE = '# {comment}'
|
|
FORMAT_STR_SET_ENV_VAR = 'export {name}="{value}"'
|
|
FORMAT_STR_USE_ENV_VAR = '${name}'
|
|
FORMAT_STR_INVOKE_SCRIPT = 'COLCON_CURRENT_PREFIX="{prefix}" _colcon_prefix_sh_source_script "{script_path}"'
|
|
FORMAT_STR_REMOVE_LEADING_SEPARATOR = 'if [ "$(echo -n ${name} | head -c 1)" = ":" ]; then export {name}=${{{name}#?}} ; fi'
|
|
FORMAT_STR_REMOVE_TRAILING_SEPARATOR = 'if [ "$(echo -n ${name} | tail -c 1)" = ":" ]; then export {name}=${{{name}%?}} ; fi'
|
|
|
|
DSV_TYPE_APPEND_NON_DUPLICATE = 'append-non-duplicate'
|
|
DSV_TYPE_PREPEND_NON_DUPLICATE = 'prepend-non-duplicate'
|
|
DSV_TYPE_PREPEND_NON_DUPLICATE_IF_EXISTS = 'prepend-non-duplicate-if-exists'
|
|
DSV_TYPE_SET = 'set'
|
|
DSV_TYPE_SET_IF_UNSET = 'set-if-unset'
|
|
DSV_TYPE_SOURCE = 'source'
|
|
|
|
|
|
def main(argv=sys.argv[1:]): # noqa: D103
|
|
parser = argparse.ArgumentParser(
|
|
description='Output shell commands for the packages in topological '
|
|
'order')
|
|
parser.add_argument(
|
|
'primary_extension',
|
|
help='The file extension of the primary shell')
|
|
parser.add_argument(
|
|
'additional_extension', nargs='?',
|
|
help='The additional file extension to be considered')
|
|
parser.add_argument(
|
|
'--merged-install', action='store_true',
|
|
help='All install prefixes are merged into a single location')
|
|
args = parser.parse_args(argv)
|
|
|
|
packages = get_packages(Path(__file__).parent, args.merged_install)
|
|
|
|
ordered_packages = order_packages(packages)
|
|
for pkg_name in ordered_packages:
|
|
if _include_comments():
|
|
print(
|
|
FORMAT_STR_COMMENT_LINE.format_map(
|
|
{'comment': 'Package: ' + pkg_name}))
|
|
prefix = os.path.abspath(os.path.dirname(__file__))
|
|
if not args.merged_install:
|
|
prefix = os.path.join(prefix, pkg_name)
|
|
for line in get_commands(
|
|
pkg_name, prefix, args.primary_extension,
|
|
args.additional_extension
|
|
):
|
|
print(line)
|
|
|
|
for line in _remove_ending_separators():
|
|
print(line)
|
|
|
|
|
|
def get_packages(prefix_path, merged_install):
|
|
"""
|
|
Find packages based on colcon-specific files created during installation.
|
|
|
|
:param Path prefix_path: The install prefix path of all packages
|
|
:param bool merged_install: The flag if the packages are all installed
|
|
directly in the prefix or if each package is installed in a subdirectory
|
|
named after the package
|
|
:returns: A mapping from the package name to the set of runtime
|
|
dependencies
|
|
:rtype: dict
|
|
"""
|
|
packages = {}
|
|
# since importing colcon_core isn't feasible here the following constant
|
|
# must match colcon_core.location.get_relative_package_index_path()
|
|
subdirectory = 'share/colcon-core/packages'
|
|
if merged_install:
|
|
# return if workspace is empty
|
|
if not (prefix_path / subdirectory).is_dir():
|
|
return packages
|
|
# find all files in the subdirectory
|
|
for p in (prefix_path / subdirectory).iterdir():
|
|
if not p.is_file():
|
|
continue
|
|
if p.name.startswith('.'):
|
|
continue
|
|
add_package_runtime_dependencies(p, packages)
|
|
else:
|
|
# for each subdirectory look for the package specific file
|
|
for p in prefix_path.iterdir():
|
|
if not p.is_dir():
|
|
continue
|
|
if p.name.startswith('.'):
|
|
continue
|
|
p = p / subdirectory / p.name
|
|
if p.is_file():
|
|
add_package_runtime_dependencies(p, packages)
|
|
|
|
# remove unknown dependencies
|
|
pkg_names = set(packages.keys())
|
|
for k in packages.keys():
|
|
packages[k] = {d for d in packages[k] if d in pkg_names}
|
|
|
|
return packages
|
|
|
|
|
|
def add_package_runtime_dependencies(path, packages):
|
|
"""
|
|
Check the path and if it exists extract the packages runtime dependencies.
|
|
|
|
:param Path path: The resource file containing the runtime dependencies
|
|
:param dict packages: A mapping from package names to the sets of runtime
|
|
dependencies to add to
|
|
"""
|
|
content = path.read_text()
|
|
dependencies = set(content.split(os.pathsep) if content else [])
|
|
packages[path.name] = dependencies
|
|
|
|
|
|
def order_packages(packages):
|
|
"""
|
|
Order packages topologically.
|
|
|
|
:param dict packages: A mapping from package name to the set of runtime
|
|
dependencies
|
|
:returns: The package names
|
|
:rtype: list
|
|
"""
|
|
# select packages with no dependencies in alphabetical order
|
|
to_be_ordered = list(packages.keys())
|
|
ordered = []
|
|
while to_be_ordered:
|
|
pkg_names_without_deps = [
|
|
name for name in to_be_ordered if not packages[name]]
|
|
if not pkg_names_without_deps:
|
|
reduce_cycle_set(packages)
|
|
raise RuntimeError(
|
|
'Circular dependency between: ' + ', '.join(sorted(packages)))
|
|
pkg_names_without_deps.sort()
|
|
pkg_name = pkg_names_without_deps[0]
|
|
to_be_ordered.remove(pkg_name)
|
|
ordered.append(pkg_name)
|
|
# remove item from dependency lists
|
|
for k in list(packages.keys()):
|
|
if pkg_name in packages[k]:
|
|
packages[k].remove(pkg_name)
|
|
return ordered
|
|
|
|
|
|
def reduce_cycle_set(packages):
|
|
"""
|
|
Reduce the set of packages to the ones part of the circular dependency.
|
|
|
|
:param dict packages: A mapping from package name to the set of runtime
|
|
dependencies which is modified in place
|
|
"""
|
|
last_depended = None
|
|
while len(packages) > 0:
|
|
# get all remaining dependencies
|
|
depended = set()
|
|
for pkg_name, dependencies in packages.items():
|
|
depended = depended.union(dependencies)
|
|
# remove all packages which are not dependent on
|
|
for name in list(packages.keys()):
|
|
if name not in depended:
|
|
del packages[name]
|
|
if last_depended:
|
|
# if remaining packages haven't changed return them
|
|
if last_depended == depended:
|
|
return packages.keys()
|
|
# otherwise reduce again
|
|
last_depended = depended
|
|
|
|
|
|
def _include_comments():
|
|
# skipping comment lines when COLCON_TRACE is not set speeds up the
|
|
# processing especially on Windows
|
|
return bool(os.environ.get('COLCON_TRACE'))
|
|
|
|
|
|
def get_commands(pkg_name, prefix, primary_extension, additional_extension):
|
|
commands = []
|
|
package_dsv_path = os.path.join(prefix, 'share', pkg_name, 'package.dsv')
|
|
if os.path.exists(package_dsv_path):
|
|
commands += process_dsv_file(
|
|
package_dsv_path, prefix, primary_extension, additional_extension)
|
|
return commands
|
|
|
|
|
|
def process_dsv_file(
|
|
dsv_path, prefix, primary_extension=None, additional_extension=None
|
|
):
|
|
commands = []
|
|
if _include_comments():
|
|
commands.append(FORMAT_STR_COMMENT_LINE.format_map({'comment': dsv_path}))
|
|
with open(dsv_path, 'r') as h:
|
|
content = h.read()
|
|
lines = content.splitlines()
|
|
|
|
basenames = OrderedDict()
|
|
for i, line in enumerate(lines):
|
|
# skip over empty or whitespace-only lines
|
|
if not line.strip():
|
|
continue
|
|
# skip over comments
|
|
if line.startswith('#'):
|
|
continue
|
|
try:
|
|
type_, remainder = line.split(';', 1)
|
|
except ValueError:
|
|
raise RuntimeError(
|
|
"Line %d in '%s' doesn't contain a semicolon separating the "
|
|
'type from the arguments' % (i + 1, dsv_path))
|
|
if type_ != DSV_TYPE_SOURCE:
|
|
# handle non-source lines
|
|
try:
|
|
commands += handle_dsv_types_except_source(
|
|
type_, remainder, prefix)
|
|
except RuntimeError as e:
|
|
raise RuntimeError(
|
|
"Line %d in '%s' %s" % (i + 1, dsv_path, e)) from e
|
|
else:
|
|
# group remaining source lines by basename
|
|
path_without_ext, ext = os.path.splitext(remainder)
|
|
if path_without_ext not in basenames:
|
|
basenames[path_without_ext] = set()
|
|
assert ext.startswith('.')
|
|
ext = ext[1:]
|
|
if ext in (primary_extension, additional_extension):
|
|
basenames[path_without_ext].add(ext)
|
|
|
|
# add the dsv extension to each basename if the file exists
|
|
for basename, extensions in basenames.items():
|
|
if not os.path.isabs(basename):
|
|
basename = os.path.join(prefix, basename)
|
|
if os.path.exists(basename + '.dsv'):
|
|
extensions.add('dsv')
|
|
|
|
for basename, extensions in basenames.items():
|
|
if not os.path.isabs(basename):
|
|
basename = os.path.join(prefix, basename)
|
|
if 'dsv' in extensions:
|
|
# process dsv files recursively
|
|
commands += process_dsv_file(
|
|
basename + '.dsv', prefix, primary_extension=primary_extension,
|
|
additional_extension=additional_extension)
|
|
elif primary_extension in extensions and len(extensions) == 1:
|
|
# source primary-only files
|
|
commands += [
|
|
FORMAT_STR_INVOKE_SCRIPT.format_map({
|
|
'prefix': prefix,
|
|
'script_path': basename + '.' + primary_extension})]
|
|
elif additional_extension in extensions:
|
|
# source non-primary files
|
|
commands += [
|
|
FORMAT_STR_INVOKE_SCRIPT.format_map({
|
|
'prefix': prefix,
|
|
'script_path': basename + '.' + additional_extension})]
|
|
|
|
return commands
|
|
|
|
|
|
def handle_dsv_types_except_source(type_, remainder, prefix):
|
|
commands = []
|
|
if type_ in (DSV_TYPE_SET, DSV_TYPE_SET_IF_UNSET):
|
|
try:
|
|
env_name, value = remainder.split(';', 1)
|
|
except ValueError:
|
|
raise RuntimeError(
|
|
"doesn't contain a semicolon separating the environment name "
|
|
'from the value')
|
|
try_prefixed_value = os.path.join(prefix, value) if value else prefix
|
|
if os.path.exists(try_prefixed_value):
|
|
value = try_prefixed_value
|
|
if type_ == DSV_TYPE_SET:
|
|
commands += _set(env_name, value)
|
|
elif type_ == DSV_TYPE_SET_IF_UNSET:
|
|
commands += _set_if_unset(env_name, value)
|
|
else:
|
|
assert False
|
|
elif type_ in (
|
|
DSV_TYPE_APPEND_NON_DUPLICATE,
|
|
DSV_TYPE_PREPEND_NON_DUPLICATE,
|
|
DSV_TYPE_PREPEND_NON_DUPLICATE_IF_EXISTS
|
|
):
|
|
try:
|
|
env_name_and_values = remainder.split(';')
|
|
except ValueError:
|
|
raise RuntimeError(
|
|
"doesn't contain a semicolon separating the environment name "
|
|
'from the values')
|
|
env_name = env_name_and_values[0]
|
|
values = env_name_and_values[1:]
|
|
for value in values:
|
|
if not value:
|
|
value = prefix
|
|
elif not os.path.isabs(value):
|
|
value = os.path.join(prefix, value)
|
|
if (
|
|
type_ == DSV_TYPE_PREPEND_NON_DUPLICATE_IF_EXISTS and
|
|
not os.path.exists(value)
|
|
):
|
|
comment = f'skip extending {env_name} with not existing ' \
|
|
f'path: {value}'
|
|
if _include_comments():
|
|
commands.append(
|
|
FORMAT_STR_COMMENT_LINE.format_map({'comment': comment}))
|
|
elif type_ == DSV_TYPE_APPEND_NON_DUPLICATE:
|
|
commands += _append_unique_value(env_name, value)
|
|
else:
|
|
commands += _prepend_unique_value(env_name, value)
|
|
else:
|
|
raise RuntimeError(
|
|
'contains an unknown environment hook type: ' + type_)
|
|
return commands
|
|
|
|
|
|
env_state = {}
|
|
|
|
|
|
def _append_unique_value(name, value):
|
|
global env_state
|
|
if name not in env_state:
|
|
if os.environ.get(name):
|
|
env_state[name] = set(os.environ[name].split(os.pathsep))
|
|
else:
|
|
env_state[name] = set()
|
|
# append even if the variable has not been set yet, in case a shell script sets the
|
|
# same variable without the knowledge of this Python script.
|
|
# later _remove_ending_separators() will cleanup any unintentional leading separator
|
|
extend = FORMAT_STR_USE_ENV_VAR.format_map({'name': name}) + os.pathsep
|
|
line = FORMAT_STR_SET_ENV_VAR.format_map(
|
|
{'name': name, 'value': extend + value})
|
|
if value not in env_state[name]:
|
|
env_state[name].add(value)
|
|
else:
|
|
if not _include_comments():
|
|
return []
|
|
line = FORMAT_STR_COMMENT_LINE.format_map({'comment': line})
|
|
return [line]
|
|
|
|
|
|
def _prepend_unique_value(name, value):
|
|
global env_state
|
|
if name not in env_state:
|
|
if os.environ.get(name):
|
|
env_state[name] = set(os.environ[name].split(os.pathsep))
|
|
else:
|
|
env_state[name] = set()
|
|
# prepend even if the variable has not been set yet, in case a shell script sets the
|
|
# same variable without the knowledge of this Python script.
|
|
# later _remove_ending_separators() will cleanup any unintentional trailing separator
|
|
extend = os.pathsep + FORMAT_STR_USE_ENV_VAR.format_map({'name': name})
|
|
line = FORMAT_STR_SET_ENV_VAR.format_map(
|
|
{'name': name, 'value': value + extend})
|
|
if value not in env_state[name]:
|
|
env_state[name].add(value)
|
|
else:
|
|
if not _include_comments():
|
|
return []
|
|
line = FORMAT_STR_COMMENT_LINE.format_map({'comment': line})
|
|
return [line]
|
|
|
|
|
|
# generate commands for removing prepended underscores
|
|
def _remove_ending_separators():
|
|
# do nothing if the shell extension does not implement the logic
|
|
if FORMAT_STR_REMOVE_TRAILING_SEPARATOR is None:
|
|
return []
|
|
|
|
global env_state
|
|
commands = []
|
|
for name in env_state:
|
|
# skip variables that already had values before this script started prepending
|
|
if name in os.environ:
|
|
continue
|
|
commands += [
|
|
FORMAT_STR_REMOVE_LEADING_SEPARATOR.format_map({'name': name}),
|
|
FORMAT_STR_REMOVE_TRAILING_SEPARATOR.format_map({'name': name})]
|
|
return commands
|
|
|
|
|
|
def _set(name, value):
|
|
global env_state
|
|
env_state[name] = value
|
|
line = FORMAT_STR_SET_ENV_VAR.format_map(
|
|
{'name': name, 'value': value})
|
|
return [line]
|
|
|
|
|
|
def _set_if_unset(name, value):
|
|
global env_state
|
|
line = FORMAT_STR_SET_ENV_VAR.format_map(
|
|
{'name': name, 'value': value})
|
|
if env_state.get(name, os.environ.get(name)):
|
|
line = FORMAT_STR_COMMENT_LINE.format_map({'comment': line})
|
|
return [line]
|
|
|
|
|
|
if __name__ == '__main__': # pragma: no cover
|
|
try:
|
|
rc = main()
|
|
except RuntimeError as e:
|
|
print(str(e), file=sys.stderr)
|
|
rc = 1
|
|
sys.exit(rc)
|