Import external utility freeze.py from r88552

  URL http://svn.python.org/projects/python/trunk/Tools/freeze

1 files changed, 90 insertions, 0 deletions

diff --git a/ext/python/Tools/freeze/.svn/text-base/makefreeze.py.svn-base b/ext/python/Tools/freeze/.svn/text-base/makefreeze.py.svn-base
new file mode 100644
index 0000000..1208b67
--- /dev/null
+++ b/ext/python/Tools/freeze/.svn/text-base/makefreeze.py.svn-base
@@ -0,0 +1,90 @@
+import marshal
+import bkfile
+
+
+# Write a file containing frozen code for the modules in the dictionary.
+
+header = """
+#include "Python.h"
+
+static struct _frozen _PyImport_FrozenModules[] = {
+"""
+trailer = """\
+    {0, 0, 0} /* sentinel */
+};
+"""
+
+# if __debug__ == 0 (i.e. -O option given), set Py_OptimizeFlag in frozen app.
+default_entry_point = """
+int
+main(int argc, char **argv)
+{
+        extern int Py_FrozenMain(int, char **);
+""" + ((not __debug__ and """
+        Py_OptimizeFlag++;
+""") or "")  + """
+        PyImport_FrozenModules = _PyImport_FrozenModules;
+        return Py_FrozenMain(argc, argv);
+}
+
+"""
+
+def makefreeze(base, dict, debug=0, entry_point=None, fail_import=()):
+    if entry_point is None: entry_point = default_entry_point
+    done = []
+    files = []
+    mods = dict.keys()
+    mods.sort()
+    for mod in mods:
+        m = dict[mod]
+        mangled = "__".join(mod.split("."))
+        if m.__code__:
+            file = 'M_' + mangled + '.c'
+            outfp = bkfile.open(base + file, 'w')
+            files.append(file)
+            if debug:
+                print "freezing", mod, "..."
+            str = marshal.dumps(m.__code__)
+            size = len(str)
+            if m.__path__:
+                # Indicate package by negative size
+                size = -size
+            done.append((mod, mangled, size))
+            writecode(outfp, mangled, str)
+            outfp.close()
+    if debug:
+        print "generating table of frozen modules"
+    outfp = bkfile.open(base + 'frozen.c', 'w')
+    for mod, mangled, size in done:
+        outfp.write('extern unsigned char M_%s[];\n' % mangled)
+    outfp.write(header)
+    for mod, mangled, size in done:
+        outfp.write('\t{"%s", M_%s, %d},\n' % (mod, mangled, size))
+    outfp.write('\n')
+    # The following modules have a NULL code pointer, indicating
+    # that the prozen program should not search for them on the host
+    # system. Importing them will *always* raise an ImportError.
+    # The zero value size is never used.
+    for mod in fail_import:
+        outfp.write('\t{"%s", NULL, 0},\n' % (mod,))
+    outfp.write(trailer)
+    outfp.write(entry_point)
+    outfp.close()
+    return files
+
+
+
+# Write a C initializer for a module containing the frozen python code.
+# The array is called M_<mod>.
+
+def writecode(outfp, mod, str):
+    outfp.write('unsigned char M_%s[] = {' % mod)
+    for i in range(0, len(str), 16):
+        outfp.write('\n\t')
+        for c in str[i:i+16]:
+            outfp.write('%d,' % ord(c))
+    outfp.write('\n};\n')
+
+## def writecode(outfp, mod, str):
+##     outfp.write('unsigned char M_%s[%d] = "%s";\n' % (mod, len(str),
+##     '\\"'.join(map(lambda s: repr(s)[1:-1], str.split('"')))))