convert ast versioning to mercurial
diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index d6555d6..d7aecb5 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -5,6 +5,7 @@
# handle fields that have a type but no name
import os, sys
+import subprocess
import asdl
@@ -882,9 +883,6 @@
self.emit("if (!%s_singleton) return 0;" % cons.name, 1)
-def parse_version(mod):
- return mod.version.value[12:-3]
-
class ASTModuleVisitor(PickleVisitor):
def visitModule(self, mod):
@@ -904,7 +902,7 @@
self.emit("return NULL;", 2)
# Value of version: "$Revision$"
self.emit('if (PyModule_AddStringConstant(m, "__version__", "%s") < 0)'
- % parse_version(mod), 1)
+ % (mod.version,), 1)
self.emit("return NULL;", 2)
for dfn in mod.dfns:
self.visit(dfn)
@@ -1137,6 +1135,18 @@
"""
+
+def get_file_revision(f):
+ """Fish out the last change to a file in hg."""
+ args = ["hg", "log", "--template", "{rev}:{node|short}", "--limit", "1"]
+ p = subprocess.Popen(args, stdout=subprocess.PIPE)
+ out = p.communicate()[0]
+ if p.returncode:
+ print >> sys.stderr, "error return code from hg"
+ sys.exit(1)
+ return out
+
+
def main(srcfile):
argv0 = sys.argv[0]
components = argv0.split(os.sep)
@@ -1145,6 +1155,7 @@
mod = asdl.parse(srcfile)
if not asdl.check(mod):
sys.exit(1)
+ mod.version = get_file_revision(srcfile)
if INC_DIR:
p = "%s/%s-ast.h" % (INC_DIR, mod.name)
f = open(p, "w")
@@ -1164,7 +1175,7 @@
p = os.path.join(SRC_DIR, str(mod.name) + "-ast.c")
f = open(p, "w")
f.write(auto_gen_msg)
- f.write(c_file_msg % parse_version(mod))
+ f.write(c_file_msg % (mod.version,))
f.write('#include "Python.h"\n')
f.write('#include "%s-ast.h"\n' % mod.name)
f.write('\n')