def env(self, root):
logger.info('env request for %s' % root)
path = root
if basename(root) == "install":
path = dirname(dirname(root)) + '/python2/install'
try:
path2 = get_python2_path(path)
except EnvironmentError as e:
print(e)
logger.info('trying %s' % path)
return ['PYTHONPATH={0}'.format(get_python2_path(path))]
def env(self, root):
logger.info('env request for %s' % root)
path = root
if basename(root) == "install":
path = dirname(dirname(root)) + '/python2/install'
try:
path2 = get_python2_path(path)
except EnvironmentError as e:
print(e)
logger.info('trying %s' % path)
return ['PYTHONPATH={0}'.format(get_python2_path(path))]
def env(self, root):
# This is until we figure out how to get pip to download only
# and then build in the build step or split out pulling
# stage-packages in an internal private step.
env = [
'CPPFLAGS="-I{} -I{} $CPPFLAGS"'.format(
os.path.join(root, 'usr', 'include'),
os.path.join(root, 'usr', 'include', 'python2.7')),
'CFLAGS="-I{} -I{} $CFLAGS"'.format(
os.path.join(root, 'usr', 'include'),
os.path.join(root, 'usr', 'include', 'python2.7')),
'ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future',
'LIBRARY_PATH={}'.format(
os.path.join(root, 'usr', 'include', 'python2.7')),
'LDFLAGS="-shared"',
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
env.append('PYTHONPATH={0}'.format(common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
"ROS_MASTER_URI=http://localhost:11311",
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
"ROS_HOME=$SNAP_USER_DATA/ros",
# This environment variable points to where the setup.sh and
# _setup_util.py files are located. This is required at both build-
# and run-time.
"_CATKIN_SETUP_DIR={}".format(os.path.join(root, "opt", "ros", self.options.rosdistro)),
# FIXME: Nasty hack to source ROS's setup.sh (since each of these
# lines is prepended with "export"). There's got to be a better way
# to do this.
"echo FOO=BAR\nif `test -e {0}` ; then\n. {0} ;\nfi\n".format(
os.path.join(root, "opt", "ros", self.options.rosdistro, "setup.sh")
),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append("PYTHONPATH={0}:$PYTHONPATH".format(common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
return env
def _pip(self, setup):
site_packages_dir = os.path.join(
os.path.dirname(common.get_python2_path(self.installdir)),
'site-packages')
# If site-packages doesn't exist, make sure it points to the
# dist-packages in the same directory (this is a relative link so that
# it's still valid when the .snap is installed).
if not os.path.exists(site_packages_dir):
os.symlink('dist-packages', site_packages_dir)
self._setup_pip()
pip_install = self._get_pip_command(site_packages_dir)
if self.options.requirements:
self.run(pip_install + [
'--requirement',
os.path.join(self.sourcedir, self.options.requirements),
])
if self.options.python_packages:
self.run(pip_install + ['--upgrade'] +
self.options.python_packages)
if os.path.exists(setup):
self.run(pip_install + ['.', ], cwd=self.sourcedir)
def _pip(self, setup):
site_packages_dir = os.path.join(
os.path.dirname(common.get_python2_path(self.installdir)),
'site-packages')
# If site-packages doesn't exist, make sure it points to the
# dist-packages in the same directory (this is a relative link so that
# it's still valid when the .snap is installed).
if not os.path.exists(site_packages_dir):
os.symlink('dist-packages', site_packages_dir)
self._setup_pip()
pip_install = self._get_pip_command(site_packages_dir)
if self.options.requirements:
self.run(pip_install + [
'--requirement',
os.path.join(self.sourcedir, self.options.requirements),
])
if self.options.python_packages:
self.run(pip_install + ['--upgrade'] +
self.options.python_packages)
if os.path.exists(setup):
self.run(pip_install + ['.', ], cwd=self.sourcedir)
def build(self):
super().build()
# If setuptools is used, it tries to create files in the
# dist-packages dir and import from there, so it needs to exist
# and be in the PYTHONPATH. It's harmless if setuptools isn't
# used.
setup_file = os.path.join(self.builddir, 'setup.py')
if not os.path.exists(setup_file):
return
os.makedirs(common.get_python2_path(self.installdir), exist_ok=True)
self.run([
'python2',
setup_file,
'build_ext',
'-I{}'.format(_get_python2_include(self.installdir)),
'install',
'--install-layout=deb',
'--prefix={}/usr'.format(self.installdir),
],
cwd=self.builddir)
# Fix all shebangs to use the in-snap python.
common.replace_in_file(self.installdir, re.compile(r''),
re.compile(r'#!.*python'),
r'#!/usr/bin/env python')
def env(self, root):
# This is until we figure out how to get pip to download only
# and then build in the build step or split out pulling
# stage-packages in an internal private step.
env = [
'CPPFLAGS="-I{} -I{} $CPPFLAGS"'.format(
os.path.join(root, 'usr', 'include'),
os.path.join(root, 'usr', 'include', 'python2.7')),
'CFLAGS="-I{} -I{} $CFLAGS"'.format(
os.path.join(root, 'usr', 'include'),
os.path.join(root, 'usr', 'include', 'python2.7')),
'ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future',
'LIBRARY_PATH={}'.format(
os.path.join(root, 'usr', 'include', 'python2.7')),
'LDFLAGS="-shared"',
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
env.append('PYTHONPATH={0}'.format(common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
paths = common.get_library_paths(root, self.project.arch_triplet)
ld_library_path = formatting_utils.combine_paths(paths,
prepend='',
separator=':')
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
'ROS_MASTER_URI=http://localhost:11311',
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=${SNAP_USER_DATA:-/tmp}/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
# The Snapcraft Core will ensure that we get a good LD_LIBRARY_PATH
# overall, but it defines it after this function runs. Some ROS
# tools will cause binaries to be run when we source the setup.sh,
# below, so we need to have a sensible LD_LIBRARY_PATH before then.
'LD_LIBRARY_PATH=$LD_LIBRARY_PATH:{}'.format(ld_library_path),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append('PYTHONPATH={0}:$PYTHONPATH'.format(
common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
if self.options.underlay:
script = '. {}'.format(
os.path.join(self.rosdir, 'snapcraft-setup.sh'))
else:
script = self._source_setup_sh(root, None)
# Each of these lines is prepended with an `export` when the
# environment is actually generated. In order to inject real shell code
# we have to hack it in by appending it on the end of an item already
# in the environment. FIXME: There should be a better way to do this.
env[-1] = env[-1] + '\n\n' + script
return env
def env(self, root):
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
return ['PYTHONPATH={0}'.format(common.get_python2_path(root))]
except EnvironmentError as e:
logger.debug(e)
return []
def env(self, root):
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
return ['PYTHONPATH={0}'.format(common.get_python2_path(root))]
except EnvironmentError as e:
logger.debug(e)
return []
def _pip(self):
setup = 'setup.py'
if os.listdir(self.sourcedir):
setup = os.path.join(self.sourcedir, 'setup.py')
if self.options.requirements:
requirements = os.path.join(os.getcwd(), self.options.requirements)
if not os.path.exists(setup) and not \
(self.options.requirements or self.options.python_packages):
return
easy_install = os.path.join(self.installdir, 'usr', 'bin',
'easy_install')
prefix = os.path.join(self.installdir, 'usr')
site_packages_dir = os.path.join(
os.path.dirname(common.get_python2_path(self.installdir)),
'site-packages')
# If site-packages doesn't exist, make sure it points to the
# dist-packages in the same directory (this is a relative link so that
# it's still valid when the .snap is installed).
if not os.path.exists(site_packages_dir):
os.symlink('dist-packages', site_packages_dir)
self.run(['python2', easy_install, '--prefix', prefix, 'pip'])
pip2 = os.path.join(self.installdir, 'usr', 'bin', 'pip2')
pip_install = [
'python2',
pip2,
'install',
# '--global-option=build_ext',
# '--global-option=-I{}'.format(
# _get_python2_include(self.installdir)),
# '--no-clean',
'--target',
site_packages_dir
]
if self.options.requirements:
self.run(pip_install + ['--requirement', requirements])
if self.options.python_packages:
self.run(pip_install + ['--upgrade'] +
self.options.python_packages)
if os.path.exists(setup):
self.run(pip_install + [
'.',
], cwd=self.sourcedir)
def env(self, root):
"""Runtime environment for ROS binaries and services."""
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
'ROS_MASTER_URI=http://localhost:11311',
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=$SNAP_USER_DATA/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
# This environment variable points to where the setup.sh and
# _setup_util.py files are located. This is required at both build-
# and run-time.
'_CATKIN_SETUP_DIR={}'.format(
os.path.join(root, 'opt', 'ros', self.options.rosdistro)),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append('PYTHONPATH={0}:$PYTHONPATH'.format(
common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
# FIXME: Nasty hack to source ROS's setup.sh (since each of these
# lines is prepended with "export"). There's got to be a better way
# to do this.
env.append(
'echo FOO=BAR\nif `test -e {0}` ; then\n. {0} ;\nfi\n'.format(
os.path.join(root, 'opt', 'ros', self.options.rosdistro,
'setup.sh')))
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
'ROS_MASTER_URI=http://localhost:11311',
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=$SNAP_USER_DATA/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
# This environment variable points to where the setup.sh and
# _setup_util.py files are located. This is required at both build-
# and run-time.
'_CATKIN_SETUP_DIR={}'.format(os.path.join(
root, 'opt', 'ros', self.options.rosdistro)),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append('PYTHONPATH={0}:$PYTHONPATH'.format(
common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
# FIXME: Nasty hack to source ROS's setup.sh (since each of these
# lines is prepended with "export"). There's got to be a better way
# to do this.
env.append(
'echo FOO=BAR\nif `test -e {0}` ; then\n. {0} ;\nfi\n'.format(
os.path.join(
root, 'opt', 'ros', self.options.rosdistro, 'setup.sh')))
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
'ROS_MASTER_URI=http://localhost:11311',
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=$SNAP_USER_DATA/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append('PYTHONPATH={0}:$PYTHONPATH'.format(
common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
if self.options.underlay:
script = '. {}'.format(os.path.join(
self.rosdir, 'snapcraft-setup.sh'))
else:
script = self._source_setup_sh(root, None)
# Each of these lines is prepended with an `export` when the
# environment is actually generated. In order to inject real shell code
# we have to hack it in by appending it on the end of an item already
# in the environment. FIXME: There should be a better way to do this.
env[-1] = env[-1] + '\n\n' + script
return env
def build(self):
super().build()
# If setuptools is used, it tries to create files in the
# dist-packages dir and import from there, so it needs to exist
# and be in the PYTHONPATH. It's harmless if setuptools isn't
# used.
setup_file = os.path.join(self.builddir, 'setup.py')
if not os.path.exists(setup_file):
return
os.makedirs(common.get_python2_path(self.installdir), exist_ok=True)
self.run(
['python2', setup_file,
'build_ext', '-I{}'.format(_get_python2_include(self.installdir)),
'install', '--install-layout=deb',
'--prefix={}/usr'.format(self.installdir),
], cwd=self.builddir)
def _pip(self):
setup = 'setup.py'
if os.listdir(self.sourcedir):
setup = os.path.join(self.sourcedir, 'setup.py')
if self.options.requirements:
requirements = os.path.join(self.sourcedir,
self.options.requirements)
if not os.path.exists(setup) and not \
(self.options.requirements or self.options.python_packages):
return
easy_install = os.path.join(
self.installdir, 'usr', 'bin', 'easy_install')
prefix = os.path.join(self.installdir, 'usr')
site_packages_dir = os.path.join(
os.path.dirname(common.get_python2_path(self.installdir)),
'site-packages')
# If site-packages doesn't exist, make sure it points to the
# dist-packages in the same directory (this is a relative link so that
# it's still valid when the .snap is installed).
if not os.path.exists(site_packages_dir):
os.symlink('dist-packages', site_packages_dir)
self.run(['python2', easy_install, '--prefix', prefix, 'pip'])
pip2 = os.path.join(self.installdir, 'usr', 'bin', 'pip2')
pip_install = ['python2', pip2, 'install',
'--global-option=build_ext',
'--global-option=-I{}'.format(
_get_python2_include(self.installdir)),
'--target', site_packages_dir]
if self.options.requirements:
self.run(pip_install + ['--requirement', requirements])
if self.options.python_packages:
self.run(pip_install + ['--upgrade'] +
self.options.python_packages)
if os.path.exists(setup):
self.run(pip_install + ['.', ], cwd=self.sourcedir)
def env(self, root):
"""Runtime environment for ROS binaries and services."""
paths = common.get_library_paths(root, self.project.arch_triplet)
ld_library_path = formatting_utils.combine_paths(paths,
prepend="",
separator=":")
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# URI.
"ROS_MASTER_URI={}".format(self.options.catkin_ros_master_uri),
# Various ROS tools (e.g. roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
"ROS_HOME=${SNAP_USER_DATA:-/tmp}/ros",
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
"LC_ALL=C.UTF-8",
# The Snapcraft Core will ensure that we get a good LD_LIBRARY_PATH
# overall, but it defines it after this function runs. Some ROS
# tools will cause binaries to be run when we source the setup.sh,
# below, so we need to have a sensible LD_LIBRARY_PATH before then.
"LD_LIBRARY_PATH=$LD_LIBRARY_PATH:{}".format(ld_library_path),
]
# There's a chicken and egg problem here, everything run gets an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
#
# Note: Empty segments in PYTHONPATH are interpreted as `.`, thus
# adding the current working directory to the PYTHONPATH. That is
# not desired in this situation, so take proper precautions when
# expanding PYTHONPATH: only add it if it's not empty.
env.append("PYTHONPATH={}${{PYTHONPATH:+:$PYTHONPATH}}".format(
common.get_python2_path(root)))
except errors.SnapcraftEnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append("PATH=$PATH:{}/usr/bin".format(root))
if self.options.underlay:
script = textwrap.dedent("""
if [ -f {snapcraft_setup} ]; then
. {snapcraft_setup}
fi
""").format(snapcraft_setup=os.path.join(self.rosdir,
"snapcraft-setup.sh"))
else:
script = self._source_setup_sh(root, None)
# Each of these lines is prepended with an `export` when the
# environment is actually generated. In order to inject real shell code
# we have to hack it in by appending it on the end of an item already
# in the environment. FIXME: There should be a better way to do this.
# LP: #1792034
env[-1] = env[-1] + "\n\n" + script
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# default URI.
'ROS_MASTER_URI=http://localhost:11311',
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=$SNAP_USER_DATA/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
# This environment variable points to where the setup.sh and
# _setup_util.py files are located. This is required at both build-
# and run-time.
'_CATKIN_SETUP_DIR={}'.format(os.path.join(
root, 'opt', 'ros', self.options.rosdistro)),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
env.append('PYTHONPATH={0}:$PYTHONPATH'.format(
common.get_python2_path(root)))
except EnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
# We need to source ROS's setup.sh at this point. However, it accepts
# arguments (thus will parse $@), and we really don't want it to, since
# $@ in this context will be meant for the app being launched
# (LP: #1660852). So we'll backup all args, source the setup.sh, then
# restore all args for the wrapper's `exec` line.
script = textwrap.dedent('''
if [ -e {0} ]; then
# Shell quote arbitrary string by replacing every occurrence of '
# with '\\'', then put ' at the beginning and end of the string.
# Prepare yourself, fun regex ahead.
quote()
{{
for i; do
printf %s\\\\n "$i" | sed "s/\'/\'\\\\\\\\\'\'/g;1s/^/\'/;\$s/\$/\' \\\\\\\\/"
done
echo " "
}}
BACKUP_ARGS=$(quote "$@")
set --
. {0}
eval "set -- $BACKUP_ARGS"
fi
'''.format(os.path.join( # noqa
root, 'opt', 'ros', self.options.rosdistro, 'setup.sh')))
# Each of these lines is prepended with an `export` when the
# environment is actually generated. In order to inject real shell code
# we have to hack it in by appending it on the end of an item in the
# environment. FIXME: There should be a better way to do this.
env[-1] = env[-1] + script
return env
def env(self, root):
"""Runtime environment for ROS binaries and services."""
paths = common.get_library_paths(root, self.project.arch_triplet)
ld_library_path = formatting_utils.combine_paths(
paths, prepend='', separator=':')
env = [
# This environment variable tells ROS nodes where to find ROS
# master. It does not affect ROS master, however-- this is just the
# URI.
'ROS_MASTER_URI={}'.format(self.options.catkin_ros_master_uri),
# Various ROS tools (e.g. rospack, roscore) keep a cache or a log,
# and use $ROS_HOME to determine where to put them.
'ROS_HOME=${SNAP_USER_DATA:-/tmp}/ros',
# FIXME: LP: #1576411 breaks ROS snaps on the desktop, so we'll
# temporarily work around that bug by forcing the locale to
# C.UTF-8.
'LC_ALL=C.UTF-8',
# The Snapcraft Core will ensure that we get a good LD_LIBRARY_PATH
# overall, but it defines it after this function runs. Some ROS
# tools will cause binaries to be run when we source the setup.sh,
# below, so we need to have a sensible LD_LIBRARY_PATH before then.
'LD_LIBRARY_PATH=$LD_LIBRARY_PATH:{}'.format(ld_library_path),
]
# There's a chicken and egg problem here, everything run get's an
# env built, even package installation, so the first runs for these
# will likely fail.
try:
# The ROS packaging system tools (e.g. rospkg, etc.) don't go
# into the ROS install path (/opt/ros/$distro), so we need the
# PYTHONPATH to include the dist-packages in /usr/lib as well.
#
# Note: Empty segments in PYTHONPATH are interpreted as `.`, thus
# adding the current working directory to the PYTHONPATH. That is
# not desired in this situation, so take proper precautions when
# expanding PYTHONPATH: only add it if it's not empty.
env.append('PYTHONPATH={}${{PYTHONPATH:+:$PYTHONPATH}}'.format(
common.get_python2_path(root)))
except errors.SnapcraftEnvironmentError as e:
logger.debug(e)
# The setup.sh we source below requires the in-snap python. Here we
# make sure it's in the PATH before it's run.
env.append('PATH=$PATH:{}/usr/bin'.format(root))
if self.options.underlay:
script = '. {}'.format(os.path.join(
self.rosdir, 'snapcraft-setup.sh'))
else:
script = self._source_setup_sh(root, None)
# Each of these lines is prepended with an `export` when the
# environment is actually generated. In order to inject real shell code
# we have to hack it in by appending it on the end of an item already
# in the environment. FIXME: There should be a better way to do this.
env[-1] = env[-1] + '\n\n' + script
return env
