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scripts/exec_wrapper.py: sys -> exec_wrapper_sys

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The MMGen Project 2023-04-04 16:04:12 +00:00
commit f1b427fd9c
Signed by: mmgen
GPG key ID: 3F8B1861E32B7DA2
1 changed files with 20 additions and 19 deletions
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39
scripts/exec_wrapper.py
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@ -1,8 +1,8 @@
#!/usr/bin/env python3
# Import as few modules and define as few names as possible at global level before exec'ing the
# Import as few modules and define as few names as possible at module level before exec'ing the
# file, as all names will be seen by the exec'ed code. To prevent name collisions, all names
# defined here should begin with 'exec_wrapper_'
# defined or imported here at module level should begin with 'exec_wrapper_'
def exec_wrapper_get_colors():
import os
@ -15,11 +15,11 @@ def exec_wrapper_get_colors():
def exec_wrapper_init(): # don't change: name is used to test if script is running under exec_wrapper
import os
if os.path.dirname(sys.argv[1]) == 'test': # scripts in ./test do overlay setup themselves
sys.path[0] = 'test'
if os.path.dirname(exec_wrapper_sys.argv[1]) == 'test': # scripts in ./test do overlay setup themselves
exec_wrapper_sys.path[0] = 'test'
else:
from test.overlay import overlay_setup
sys.path[0] = overlay_setup(repo_root=os.getcwd()) # assume we're in the repo root
exec_wrapper_sys.path[0] = overlay_setup(repo_root=os.getcwd()) # assume we're in the repo root
os.environ['MMGEN_EXEC_WRAPPER'] = '1'
os.environ['PYTHONPATH'] = '.'
@ -54,7 +54,7 @@ def exec_wrapper_write_traceback(e,exit_val):
def gen_output():
yield 'Traceback (most recent call last):'
for e in traceback.extract_tb(sys.exc_info()[2]):
for e in traceback.extract_tb(exec_wrapper_sys.exc_info()[2]):
yield ' File "{f}", line {l}, in {n}\n {L}'.format(
f = exec_wrapper_execed_file if e.filename == '<string>' else fixup_fn(e.filename),
l = '(scrubbed)' if os.getenv('MMGEN_TEST_SUITE_DETERMINISTIC') else e.lineno,
@ -66,12 +66,12 @@ def exec_wrapper_write_traceback(e,exit_val):
if 'SystemExit' in exc_line:
tb_lines.pop()
sys.stdout.write('{}\n{}\n'.format( c.yellow( '\n'.join(tb_lines) ), c.red(exc_line) ))
exec_wrapper_sys.stdout.write('{}\n{}\n'.format( c.yellow( '\n'.join(tb_lines) ), c.red(exc_line) ))
with open('test.py.err','w') as fp:
fp.write('\n'.join(tb_lines + [exc_line]))
else:
sys.stdout.write( c.purple((f'NONZERO_EXIT[{exit_val}]: ' if exit_val else '') + exc_line) + '\n' )
exec_wrapper_sys.stdout.write( c.purple((f'NONZERO_EXIT[{exit_val}]: ' if exit_val else '') + exc_line) + '\n' )
def exec_wrapper_end_msg():
import os
@ -79,7 +79,7 @@ def exec_wrapper_end_msg():
c = exec_wrapper_get_colors()
# write to stdout to ensure script output gets to terminal first
import time
sys.stdout.write(c.blue('Runtime: {:0.5f} secs\n'.format(time.time() - exec_wrapper_tstart)))
exec_wrapper_sys.stdout.write(c.blue('Runtime: {:0.5f} secs\n'.format(time.time() - exec_wrapper_tstart)))
def exec_wrapper_tracemalloc_setup():
import os
@ -87,7 +87,7 @@ def exec_wrapper_tracemalloc_setup():
os.environ['PYTHONTRACEMALLOC'] = '1'
import tracemalloc
tracemalloc.start()
sys.stderr.write("INFO → Appending memory allocation stats to 'tracemalloc.log'\n")
exec_wrapper_sys.stderr.write("INFO → Appending memory allocation stats to 'tracemalloc.log'\n")
def exec_wrapper_tracemalloc_log():
import os
@ -98,7 +98,7 @@ def exec_wrapper_tracemalloc_log():
depth = 100
col1w = 100
with open('tracemalloc.log','a') as fp:
fp.write('##### TOP {} {} #####\n'.format(depth,' '.join(sys.argv)))
fp.write('##### TOP {} {} #####\n'.format(depth,' '.join(exec_wrapper_sys.argv)))
for stat in stats[:depth]:
frame = stat.traceback[0]
fn = re.sub(r'.*\/site-packages\/|.*\/mmgen\/test\/overlay\/tree\/','',frame.filename)
@ -108,7 +108,7 @@ def exec_wrapper_tracemalloc_log():
s = stat.size/1024,
w = col1w ))
fp.write('{f:{w}} {s:8.2f} KiB\n\n'.format(
f = 'TOTAL {}:'.format(' '.join(sys.argv))[:col1w],
f = 'TOTAL {}:'.format(' '.join(exec_wrapper_sys.argv))[:col1w],
s = sum(stat.size for stat in stats) / 1024,
w = col1w ))
@ -116,19 +116,20 @@ def exec_wrapper_get_tstart():
import time
return time.time()
import sys # this is the only module we import into namespace of exec’ed code
import sys as exec_wrapper_sys
exec_wrapper_init() # sets sys.path[0], runs overlay_setup()
exec_wrapper_tracemalloc_setup()
from mmgen.devinit import init_dev # import mmgen mods only after overlay setup!
init_dev()
# import mmgen mods only after overlay setup!
from mmgen.devinit import init_dev as exec_wrapper_init_dev
exec_wrapper_init_dev()
exec_wrapper_tstart = exec_wrapper_get_tstart()
try:
sys.argv.pop(0)
exec_wrapper_execed_file = sys.argv[0]
exec_wrapper_sys.argv.pop(0)
exec_wrapper_execed_file = exec_wrapper_sys.argv[0]
with open(exec_wrapper_execed_file) as fp:
exec(fp.read())
except SystemExit as e:
@ -137,11 +138,11 @@ except SystemExit as e:
else:
exec_wrapper_tracemalloc_log()
exec_wrapper_end_msg()
sys.exit(e.code)
exec_wrapper_sys.exit(e.code)
except Exception as e:
exit_val = e.mmcode if hasattr(e,'mmcode') else e.code if hasattr(e,'code') else 1
exec_wrapper_write_traceback(e,exit_val)
sys.exit(exit_val)
exec_wrapper_sys.exit(exit_val)
exec_wrapper_tracemalloc_log()
exec_wrapper_end_msg()