# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
import re
import os
import sys
import shlex
import pkg_resources
import command
class ExeCommand(command.Command):
parser = command.Command.standard_parser(verbose=False)
summary = "Run #! executable files"
description = """\
Use this at the top of files like:
#!/usr/bin/env /path/to/paster exe subcommand
The rest of the file will be used as a config file for the given
command, if it wants a config file.
You can also include an [exe] section in the file, which looks
like:
[exe]
command = serve
log_file = /path/to/log
add = /path/to/other/config.ini
Which translates to:
paster serve --log-file=/path/to/log /path/to/other/config.ini
"""
hidden = True
_exe_section_re = re.compile(r'^\s*\[\s*exe\s*\]\s*$')
_section_re = re.compile(r'^\s*\[')
def run(self, argv):
if argv and argv[0] in ('-h', '--help'):
print self.description
return
if os.environ.get('REQUEST_METHOD'):
# We're probably in a CGI environment
sys.stdout = sys.stderr
os.environ['PASTE_DEFAULT_QUIET'] = 'true'
# Maybe import cgitb or something?
if '_' not in os.environ:
print "Warning: this command is intended to be run with a #! like:"
print " #!/usr/bin/env paster exe"
print "It only works with /usr/bin/env, and only as a #! line."
# Should I actually shlex.split the args?
filename = argv[-1]
args = argv[:-1]
extra_args = []
else:
filename = os.environ['_']
extra_args = argv[:]
args = []
while extra_args:
if extra_args[0] == filename:
extra_args.pop(0)
break
args.append(extra_args.pop(0))
vars = {'here': os.path.dirname(filename),
'__file__': filename}
f = open(filename)
lines = f.readlines()
f.close()
options = {}
lineno = 1
while lines:
if self._exe_section_re.search(lines[0]):
lines.pop(0)
break
lines.pop(0)
lineno += 1
pre_options = []
options = args
for line in lines:
lineno += 1
line = line.strip()
if not line or line.startswith('#'):
continue
if self._section_re.search(line):
break
if '=' not in line:
raise command.BadCommand('Missing = in %s at %s: %r'
% (filename, lineno, line))
name, value = line.split('=', 1)
name = name.strip()
value = value.strip()
if name == 'require':
pkg_resources.require(value)
elif name == 'command' or name == 'add':
options.extend(shlex.split(value))
elif name == 'plugin':
options[:0] = ['--plugin', value]
else:
value = value % vars
options.append('--%s=%s' % (name.replace('_', '-'), value))
os.environ['PASTE_CONFIG_FILE'] = filename
options.extend(extra_args)
command.run(options)