add hg and python

1 files changed, 66 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Tools/scripts/mkreal.py b/sys/src/cmd/python/Tools/scripts/mkreal.py
new file mode 100755
index 000000000..fb9e9a58b
--- /dev/null
+++ b/sys/src/cmd/python/Tools/scripts/mkreal.py
@@ -0,0 +1,66 @@
+#! /usr/bin/env python
+
+# mkreal
+#
+# turn a symlink to a directory into a real directory
+
+import sys
+import os
+from stat import *
+
+join = os.path.join
+
+error = 'mkreal error'
+
+BUFSIZE = 32*1024
+
+def mkrealfile(name):
+    st = os.stat(name) # Get the mode
+    mode = S_IMODE(st[ST_MODE])
+    linkto = os.readlink(name) # Make sure again it's a symlink
+    f_in = open(name, 'r') # This ensures it's a file
+    os.unlink(name)
+    f_out = open(name, 'w')
+    while 1:
+        buf = f_in.read(BUFSIZE)
+        if not buf: break
+        f_out.write(buf)
+    del f_out # Flush data to disk before changing mode
+    os.chmod(name, mode)
+
+def mkrealdir(name):
+    st = os.stat(name) # Get the mode
+    mode = S_IMODE(st[ST_MODE])
+    linkto = os.readlink(name)
+    files = os.listdir(name)
+    os.unlink(name)
+    os.mkdir(name, mode)
+    os.chmod(name, mode)
+    linkto = join(os.pardir, linkto)
+    #
+    for filename in files:
+        if filename not in (os.curdir, os.pardir):
+            os.symlink(join(linkto, filename), join(name, filename))
+
+def main():
+    sys.stdout = sys.stderr
+    progname = os.path.basename(sys.argv[0])
+    if progname == '-c': progname = 'mkreal'
+    args = sys.argv[1:]
+    if not args:
+        print 'usage:', progname, 'path ...'
+        sys.exit(2)
+    status = 0
+    for name in args:
+        if not os.path.islink(name):
+            print progname+':', name+':', 'not a symlink'
+            status = 1
+        else:
+            if os.path.isdir(name):
+                mkrealdir(name)
+            else:
+                mkrealfile(name)
+    sys.exit(status)
+
+if __name__ == '__main__':
+    main()