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import json
import sys
import inspect
from .meta import MetaData
from .exceptions import CondaBuildError
from subprocess import Popen, PIPE, STDOUT, check_output, CalledProcessError
def combine_args(args):
if not isinstance(args, list):
raise TypeError('Expecting a list instance, got: {0}'.format(type(args)))
if not args:
return ''
return ' '.join(args)
def run_process(command, callbacks=None):
callback_failed = False
callback_status = None
callback_message = ''
process = Popen(command, stdout=PIPE, stderr=STDOUT)
# Poll process for new output until finished
while True:
nextline = process.stdout.readline().decode()
if nextline == '' and process.poll() != None:
break
sys.stdout.write(nextline)
sys.stdout.flush()
output = process.communicate()[0]
output = output.decode()
#Callbacks don't work yet. Sigh.
if callbacks is not None:
if not isinstance(callbacks, list):
raise TypeError('Expecting a list instance, got: {0}'.format(type(command)))
for callback in callbacks:
callback_status, callback_message = callback(output)
if not callback_status:
callback_failed = True
#Stop processing future callbacks here?
exitCode = process.returncode
if callback_failed:
raise CondaBuildError(callback_message)
elif exitCode == 0:
return exitCode
else:
raise CalledProcessError(exitCode, combine_args(command))
def conda_search(metadata):
pkgname = metadata.name()
command = ['conda', 'search', '--json', pkgname]
proc = Popen(command, stdout=PIPE)
out, _ = proc.communicate()
output = out.decode('utf-8').strip()
data = json.loads(output)
if pkgname in data:
for pkg in data[pkgname]:
if pkg['installed']:
return '-'.join([pkg['name'],
pkg['version'],
pkg['build']])
return ''
def conda_install(pkgname, args=[]):
# Until I can figure out a good way to build with the conda API
# we'll use the CLI interface:
command = 'conda install --yes {0} {1}'.format(combine_args(args), pkgname).split()
try:
run_process(command)
except CalledProcessError as cpe:
print(cpe)
def conda_reinstall(pkgname, args=[]):
# Until I can figure out a good way to build with the conda API
# we'll use the CLI interface:
commands = ['conda remove --yes {0}'.format(pkgname).split(),
'conda install --yes {0} {1}'.format(combine_args(args), pkgname).split()]
for command in commands:
try:
run_process(command)
except CalledProcessError as cpe:
print(cpe)
def conda_builder(metadata, args=[]):
if not isinstance(metadata, MetaData):
raise CondaBuildError('Expecting instance of conda_build.metadata.MetaData, got: "{0}"'.format(type(metadata)))
def check_bad_egg(output):
bad_egg = 'UNKNOWN.egg-info'
if bad_egg in output:
return False, '{0}: Bad setuptools metadata produced UNKNOWN.egg-info instead of {1}*.egg-info!'.format(inspect.currentframe().f_code.co_name, metadata.local['package']['name'])
return True, ''
command = 'conda build {0} {1}'.format(combine_args(args), metadata.env.pkgdir).split()
callbacks = [check_bad_egg]
try:
run_process(command, callbacks)
except SystemExit:
print('Discarding SystemExit issued by setuptools')
except CalledProcessError as cpe:
print(cpe)
return False
return True
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