Changeset 7617:a973d3d90f93

Timestamp:

12/11/07 12:16:34 (6 years ago)

Author:

William Stein <wstein@…>

Branch:

default

Message:

Trac #1462 -- optimize "sage -b"

Files:

• .hgignore (modified) (1 diff)
• setup.py (modified) (2 diffs)

.hgignore

@@ -3 +3 @@
 push
 pull
+.cython_hash$
 \.hi$
 \.mtl$

setup.py

@@ -1051 +1051 @@
             sys.exit(1)
     return [outfile]
-    
+
+def hash_of_cython_file_timestamps():
+    h = 0
+    extensions = set(['.pyx', '.pxd', '.pxi'])
+    def hash_of_dir(dir):
+        h = 0
+        for f in os.listdir(dir):
+            z = dir + '/' + f
+            if os.path.isdir(z):
+                h += hash_of_dir(z)
+            elif f[-4:] in extensions:
+                h += hash(os.path.getmtime(z))
+        return h
+    return hash_of_dir('sage')
+
+CYTHON_HASH_FILE='.cython_hash'
+H = str(hash_of_cython_file_timestamps())
+if not os.path.exists(CYTHON_HASH_FILE):
+    H_old = H + 'x'
+else:
+    H_old = open(CYTHON_HASH_FILE).read()
+if H != H_old:
+    do_cython = True
+    open(CYTHON_HASH_FILE,'w').write(H)
+else:
+    do_cython = False
 
 def cython(ext_modules):
@@ -1069 +1094 @@
         
 
-if not sdist:
+if not sdist and do_cython:
     cython(ext_modules)