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#!/usr/bin/env python
# Copyright (c) 2023 Arm Limited.
#
# SPDX-License-Identifier: MIT
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os
import logging
import subprocess
logger = logging.getLogger("Shell")
class Shell:
def __init__(self, is_interactive=False):
self.line=""
self.env=os.environ.copy()
self.initial_path = self.env["PATH"]
self.save_cwd()
self.is_interactive = is_interactive
def reset_path(self):
self.env["PATH"]=self.initial_path
def set_env(self, key, value):
self.env[key] = value
def append_env(self, key, value):
logger.debug("Appending '%s' to '%s'" % (value, key))
if key not in list(self.env.keys()):
self.set_env(key,value)
else:
self.env[key] += ":"+value
def prepend_env(self, key, value):
logger.debug("Prepending '%s' to '%s'" % (value, key))
if key not in list(self.env.keys()):
self.set_env(key,value)
else:
self.env[key] = value+":"+self.env[key]
def run(self, cmd):
if isinstance(cmd, list):
for c in cmd:
self.run_single(c)
else:
self.run_single(cmd)
def run_to_str(self, cmd):
out = ""
if isinstance(cmd, list):
for c in cmd:
out += self.run_single_to_str(c)
else:
out = self.run_single_to_str(cmd)
return out
def cd(self, dirname):
os.chdir(dirname)
def save_cwd(self):
self.cwd = os.getcwd()
def restore_cwd(self):
self.cd( self.cwd )
def run_single_interactive(self,cmd):
subprocess.check_call(cmd, env=self.env,stderr=subprocess.STDOUT, shell=True)
logger.debug("%s returned" % cmd)
def run_single(self,cmd):
if self.is_interactive:
self.run_single_interactive(cmd)
else:
self.run_single_to_str(cmd)
def run_single_to_str_no_output_check(self,cmd):
try:
out = subprocess.check_output(cmd, env=self.env, stderr=subprocess.STDOUT, shell=True)
except subprocess.CalledProcessError as cpe:
out = cpe.output
if (len(out.strip()) > 0):
logger.debug(out)
logger.debug("%s returned" % cmd)
return out
def run_single_to_str(self,cmd):
out = subprocess.check_output(cmd, env=self.env, stderr=subprocess.STDOUT, shell=True).decode('utf-8')
if (len(out.strip()) > 0):
logger.debug(out)
logger.debug("%s returned" % cmd)
return out
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