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#! /usr/bin/env python
"""Find and print out function signatures from .sql file.
Usage:
find_sql_functions.py [-h] [-s] [-p PREFIX] FILE ...
Switches:
-h Show help
-p PREFIX Prefix each line with string
-s Check whether function is SECURITY DEFINER
"""
import sys, re, getopt
rx = r"""
^
create \s+ (?: or \s+ replace \s+ )?
function ( [^(]+ )
[(] ( [^)]* ) [)]
"""
rx_secdef = r"""security\s+definer"""
rc = re.compile(rx, re.I | re.M | re.X)
sc = re.compile(r"\s+")
rc_sec = re.compile(rx_secdef, re.I | re.X)
def grep_file(fn, cf_prefix, cf_secdef):
sql = open(fn).read()
pos = 0
while 1:
m = rc.search(sql, pos)
if not m:
break
pos = m.end()
m2 = rc.search(sql, pos)
if m2:
xpos = m2.end()
else:
xpos = len(sql)
secdef = False
m2 = rc_sec.search(sql, pos, xpos)
if m2:
secdef = True
fname = m.group(1).strip()
fargs = m.group(2)
alist = fargs.split(',')
tlist = []
for a in alist:
a = a.strip()
toks = sc.split(a.lower())
if toks[0] == "out":
continue
if toks[0] in ("in", "inout"):
toks = toks[1:]
# just take last item
tlist.append(toks[-1])
sig = "%s(%s)" % (fname, ", ".join(tlist))
if cf_prefix:
ln = "%s %s;" % (cf_prefix, sig)
else:
ln = " %s(%s)," % (fname, ", ".join(tlist))
if cf_secdef and secdef:
ln = "%-72s -- SECDEF" % (ln)
print ln
def main(argv):
cf_secdef = 0
cf_prefix = ''
try:
opts, args = getopt.getopt(argv, "hsp:")
except getopt.error, d:
print 'getopt:', d
sys.exit(1)
for o, a in opts:
if o == '-h':
print __doc__
sys.exit(0)
elif o == '-s':
cf_secdef = 1
elif o == '-p':
cf_prefix = a
else:
print __doc__
sys.exit(1)
for fn in args:
grep_file(fn, cf_prefix, cf_secdef)
if __name__ == '__main__':
main(sys.argv[1:])
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