Remove building llvm2ice.build_atts from Subzero build.
BUG=None
R=stichnot@chromium.org
Review URL: https://codereview.chromium.org/689753002
diff --git a/pydir/if.py b/pydir/if.py
new file mode 100755
index 0000000..86923c6
--- /dev/null
+++ b/pydir/if.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python2
+
+import argparse
+import os
+import sys
+
+from utils import shellcmd
+
+def main():
+ """Run the specified command only if conditions are met.
+
+ Two conditions are checked. First, the CONDITION must be true.
+ Secondly, all NEED names must be in the set of HAVE names.
+ If both conditions are met, the command defined by the remaining
+ arguments is run in a shell.
+ """
+ argparser = argparse.ArgumentParser(
+ description=' ' + main.__doc__,
+ formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+ argparser.add_argument('--cond', choices={'true', 'false'} , required=False,
+ default='true', metavar='CONDITION',
+ help='Condition to test.')
+ argparser.add_argument('--need', required=False, default=[],
+ action='append', metavar='NEED',
+ help='Needed name. May be repeated.')
+ argparser.add_argument('--have', required=False, default=[],
+ action='append', metavar='HAVE',
+ help='Name you have. May be repeated.')
+ argparser.add_argument('--echo-cmd', required=False,
+ action='store_true',
+ help='Trace the command before running.')
+ argparser.add_argument('--command', nargs=argparse.REMAINDER,
+ help='Command to run if attributes found.')
+
+ args = argparser.parse_args()
+
+ # Quit early if no command to run.
+ if not args.command:
+ raise RuntimeError("No command argument(s) specified for ifatts")
+
+ if args.cond == 'true' and set(args.need) <= set(args.have):
+ stdout_result = shellcmd(args.command, echo=args.echo_cmd)
+ if not args.echo_cmd:
+ sys.stdout.write(stdout_result)
+
+if __name__ == '__main__':
+ main()
+ sys.exit(0)
