new file mode 100644
--- /dev/null
+++ b/mercurial/ui.py
@@ -0,0 +1,55 @@
+# ui.py - user interface bits for mercurial
+#
+# Copyright 2005 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms
+# of the GNU General Public License, incorporated herein by reference.
+
+import os, tempfile, sys, re
+
+class ui:
+ def __init__(self, verbose=False, debug=False, quiet=False,
+ interactive=True):
+ self.quiet = quiet and not verbose and not debug
+ self.verbose = verbose or debug
+ self.debugflag = debug
+ self.interactive = interactive
+ def write(self, *args):
+ for a in args:
+ sys.stdout.write(str(a))
+ def readline(self):
+ return sys.stdin.readline()[:-1]
+ def prompt(self, msg, pat, default = "y"):
+ if not self.interactive: return default
+ while 1:
+ self.write(msg, " ")
+ r = self.readline()
+ if re.match(pat, r):
+ return r
+ else:
+ self.write("unrecognized response\n")
+ def status(self, *msg):
+ if not self.quiet: self.write(*msg)
+ def warn(self, msg):
+ self.write(*msg)
+ def note(self, *msg):
+ if self.verbose: self.write(*msg)
+ def debug(self, *msg):
+ if self.debugflag: self.write(*msg)
+ def edit(self, text):
+ (fd, name) = tempfile.mkstemp("hg")
+ f = os.fdopen(fd, "w")
+ f.write(text)
+ f.close()
+
+ editor = os.environ.get("HGEDITOR") or os.environ.get("EDITOR", "vi")
+ r = os.system("%s %s" % (editor, name))
+
+ if r:
+ raise "Edit failed!"
+
+ t = open(name).read()
+ t = re.sub("(?m)^HG:.*\n", "", t)
+
+ return t
+