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mirror of https://github.com/httpie/cli.git synced 2024-11-24 08:22:22 +02:00

Refactored main() into program() + main()

This commit is contained in:
Jakub Roztocil 2016-03-01 21:10:54 +08:00
parent 01ca7f0eb2
commit 2a25d71aa4
2 changed files with 108 additions and 69 deletions

View File

@ -68,41 +68,21 @@ def decode_args(args, stdin_encoding):
]
def main(args=sys.argv[1:], env=Environment(), error=None):
"""Run the main program and write the output to ``env.stdout``.
def program(args, env, log_error):
"""
The main program without error handling
Return exit status code.
:param args: parsed args (argparse.Namespace)
:type env: Environment
:param log_error: error log function
:return: status code
"""
args = decode_args(args, env.stdin_encoding)
plugin_manager.load_installed_plugins()
from httpie.cli import parser
if env.config.default_options:
args = env.config.default_options + args
def _error(msg, *args, **kwargs):
msg = msg % args
level = kwargs.get('level', 'error')
env.stderr.write('\nhttp: %s: %s\n' % (level, msg))
if error is None:
error = _error
debug = '--debug' in args
traceback = debug or '--traceback' in args
exit_status = ExitStatus.OK
if debug:
print_debug_info(env)
if args == ['--debug']:
return exit_status
downloader = None
try:
args = parser.parse_args(args=args, env=env)
show_traceback = args.debug or args.traceback
try:
if args.download:
args.follow = True # --download implies --follow.
downloader = Downloader(
@ -126,10 +106,10 @@ def main(args=sys.argv[1:], env=Environment(), error=None):
follow=args.follow
)
if not env.stdout_isatty and exit_status != ExitStatus.OK:
error('HTTP %s %s',
response.raw.status,
response.raw.reason,
level='warning')
log_error(
'HTTP %s %s', response.raw.status, response.raw.reason,
level='warning'
)
write_stream_kwargs = {
'stream': build_output_stream(
@ -148,7 +128,7 @@ def main(args=sys.argv[1:], env=Environment(), error=None):
else:
write_stream(**write_stream_kwargs)
except IOError as e:
if not traceback and e.errno == errno.EPIPE:
if not show_traceback and e.errno == errno.EPIPE:
# Ignore broken pipes unless --traceback.
env.stderr.write('\n')
else:
@ -165,40 +145,11 @@ def main(args=sys.argv[1:], env=Environment(), error=None):
downloader.finish()
if downloader.interrupted:
exit_status = ExitStatus.ERROR
error('Incomplete download: size=%d; downloaded=%d' % (
log_error('Incomplete download: size=%d; downloaded=%d' % (
downloader.status.total_size,
downloader.status.downloaded
))
except KeyboardInterrupt:
if traceback:
raise
env.stderr.write('\n')
exit_status = ExitStatus.ERROR
except SystemExit as e:
if e.code != ExitStatus.OK:
if traceback:
raise
env.stderr.write('\n')
exit_status = ExitStatus.ERROR
except requests.Timeout:
exit_status = ExitStatus.ERROR_TIMEOUT
error('Request timed out (%ss).', args.timeout)
except requests.TooManyRedirects:
exit_status = ExitStatus.ERROR_TOO_MANY_REDIRECTS
error('Too many redirects (--max-redirects=%s).', args.max_redirects)
except Exception as e:
# TODO: Better distinction between expected and unexpected errors.
if traceback:
raise
msg = str(e)
if hasattr(e, 'request'):
request = e.request
if hasattr(request, 'url'):
msg += ' while doing %s request to URL: %s' % (
request.method, request.url)
error('%s: %s', type(e).__name__, msg)
exit_status = ExitStatus.ERROR
return exit_status
finally:
if downloader and not downloader.finished:
@ -208,4 +159,91 @@ def main(args=sys.argv[1:], env=Environment(), error=None):
args.output_file_specified):
args.output_file.close()
def main(args=sys.argv[1:], env=Environment(), custom_log_error=None):
"""
The main function.
Pre-process args, handle some special type of invocations, and run the main
program with error handling.
Return exit status code.
"""
args = decode_args(args, env.stdin_encoding)
plugin_manager.load_installed_plugins()
def log_error(msg, *args, level='error'):
msg = msg % args
env.stderr.write('\nhttp: %s: %s\n' % (level, msg))
from httpie.cli import parser
if env.config.default_options:
args = env.config.default_options + args
if custom_log_error:
log_error = custom_log_error
include_debug_info = '--debug' in args
include_traceback = include_debug_info or '--traceback' in args
if include_debug_info:
print_debug_info(env)
if args == ['--debug']:
return ExitStatus.OK
exit_status = ExitStatus.OK
try:
parsed_args = parser.parse_args(args=args, env=env)
except KeyboardInterrupt:
env.stderr.write('\n')
if include_traceback:
raise
exit_status = ExitStatus.ERROR
except SystemExit as e:
if e.code != ExitStatus.OK:
env.stderr.write('\n')
if include_traceback:
raise
exit_status = ExitStatus.ERROR
else:
try:
exit_status = program(
args=parsed_args,
env=env,
log_error=log_error,
)
except KeyboardInterrupt:
env.stderr.write('\n')
if include_traceback:
raise
exit_status = ExitStatus.ERROR
except SystemExit as e:
if e.code != ExitStatus.OK:
env.stderr.write('\n')
if include_traceback:
raise
exit_status = ExitStatus.ERROR
except requests.Timeout:
exit_status = ExitStatus.ERROR_TIMEOUT
log_error('Request timed out (%ss).', parsed_args.timeout)
except requests.TooManyRedirects:
exit_status = ExitStatus.ERROR_TOO_MANY_REDIRECTS
log_error('Too many redirects (--max-redirects=%s).',
parsed_args.max_redirects)
except Exception as e:
# TODO: Further distinction between expected and unexpected errors.
msg = str(e)
if hasattr(e, 'request'):
request = e.request
if hasattr(request, 'url'):
msg += ' while doing %s request to URL: %s' % (
request.method, request.url)
log_error('%s: %s', type(e).__name__, msg)
if include_traceback:
raise
exit_status = ExitStatus.ERROR
return exit_status

View File

@ -3,6 +3,7 @@ from pytest import raises
from requests import Request, Timeout
from requests.exceptions import ConnectionError
from httpie import ExitStatus
from httpie.core import main
error_msg = None
@ -17,8 +18,8 @@ def test_error(get_response):
exc = ConnectionError('Connection aborted')
exc.request = Request(method='GET', url='http://www.google.com')
get_response.side_effect = exc
ret = main(['--ignore-stdin', 'www.google.com'], error=error)
assert ret == 1
ret = main(['--ignore-stdin', 'www.google.com'], custom_log_error=error)
assert ret == ExitStatus.ERROR
assert error_msg == (
'ConnectionError: '
'Connection aborted while doing GET request to URL: '
@ -43,6 +44,6 @@ def test_timeout(get_response):
exc = Timeout('Request timed out')
exc.request = Request(method='GET', url='http://www.google.com')
get_response.side_effect = exc
ret = main(['--ignore-stdin', 'www.google.com'], error=error)
assert ret == 2
ret = main(['--ignore-stdin', 'www.google.com'], custom_log_error=error)
assert ret == ExitStatus.ERROR_TIMEOUT
assert error_msg == 'Request timed out (30s).'