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Support non-interactive request to exec command

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Make outside scripting easier by accepting an optional command
to run in exec environment.
This commit is contained in:
Jarrod Johnson 2021-09-02 09:06:57 -04:00
parent 237670e9b1
commit ac45d6e578
1 changed files with 7 additions and 1 deletions
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8
imgutil/imgutil
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@ -625,6 +625,7 @@ def main():
'cause it to be mounted in image as /run/external/, -v /:/run/root '
'will override the target to be /run/root', action='append')
execp.add_argument('scratchdir', help='Directory of an unpacked diskless root')
execp.add_argument('cmd', nargs='*', help='Optional command to run (defaults to a shell)')
unpackp = sps.add_parser('unpack', help='Unpack a diskless image to a scratch directory')
unpackp.add_argument('profilename', help='The diskless OS profile to unpack')
unpackp.add_argument('scratchdir', help='Directory to extract diskless root to')
@ -677,7 +678,12 @@ def exec_root_backend(args):
os.chroot(installroot)
os.chdir('/')
os.environ['PS1'] = '[\x1b[1m\x1b[4mIMGUTIL EXEC {0}\x1b[0m \W]$ '.format(imgname)
os.execv('/bin/bash', ['/bin/bash', '--login', '--noprofile'])
if args.cmd:
if not args.cmd[0].startswith('/'):
args.cmd[0] = shutil.which(args.cmd[0])
os.execv(args.cmd[0], args.cmd)
else:
os.execv('/bin/bash', ['/bin/bash', '--login', '--noprofile'])
def _mount(src, dst, fstype=0, flags=0, options=0, mode=None):