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check_root: make #!/usr/bin/env a special case

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This commit is contained in:
David Michael 2016-12-19 17:36:14 -08:00
parent f845a97532
commit 98718496a4
1 changed files with 15 additions and 2 deletions
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17
build_library/check_root
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@ -177,9 +177,22 @@ def check_shebang():
line = fd.readline(80)
if not line.startswith(b"#!"):
continue
cmd = line[2:].rstrip().split(None,1)[0]
args = line[2:].rstrip().split(None, 2)
cmd = args.pop(0)
if cmd in ('/usr/bin/env', '/bin/env') and args:
prog = args.pop(0)
if prog.startswith('-') and args:
prog = args.pop(0)
cmd = '(env)/%s' % prog
if cmd not in cache:
cache[cmd] = os.path.exists(root+cmd)
if cmd.startswith('(env)'):
cache[cmd] = False
for bindir in (root+'/usr/bin', root+'/usr/sbin'):
if os.path.exists(os.path.join(bindir, prog)):
cache[cmd] = True
break
else:
cache[cmd] = os.path.exists(root+cmd)
if not cache[cmd]:
relpath = path[len(root):]
error("%s: %s does not exist", relpath, cmd)