Added preliminary tree-diffing support

1 files changed, 35 insertions, 0 deletions

diff --git a/becommands/diff.py b/becommands/diff.py
new file mode 100644
index 0000000..bf8b66d
--- /dev/null
+++ b/becommands/diff.py
@@ -0,0 +1,35 @@
+# This is the standard command template.  To use it, please fill in values for
+# Short description, long help and COMMANDSPEC
+#
+"""Compare bug reports with older tree"""
+from libbe import bugdir, diff, cmdutil
+import os
+def execute(args):
+    options, args = get_parser().parse_args(args)
+    if len(args) == 0:
+        spec = None
+    elif len(args) == 1:
+        spec = args[0]
+    else:
+        raise cmdutil.UsageError
+    tree = bugdir.tree_root(".")
+    if tree.rcs_name == "None":
+        print "This directory is not revision-controlled."
+    else:
+        diff.diff_report(diff.reference_diff(tree, spec), tree)
+
+
+def get_parser():
+    parser = cmdutil.CmdOptionParser("be diff [specifier]")
+    return parser
+
+longhelp="""
+Uses the RCS to compare the current tree with a previous tree, and prints
+a pretty report.  If specifier is given, it is a specifier for the particular
+previous tree to use.  Specifiers are specific to their RCS.  
+
+For Arch: a fully-qualified revision name
+"""
+
+def help():
+    return get_parser().help_str() + longhelp