diff tests/test-extension @ 10364:de1e7099d100

dispatch: provide help for disabled extensions and commands

Before a command is declared unknown, each extension in hgext is searched,
starting with hgext.<cmdname>. If there's a matching command, a help message
suggests the appropriate extension and how to enable it.

Every extension could potentially be imported, but for cases like rebase,
relink, etc. only one extension is imported.

For the case of "hg help disabledext", if the extension is in hgext, the
extension description is read and a similar help suggestion is printed.
No extension import occurs.

--- a/tests/test-extension	Sun Feb 07 11:32:08 2010 +0100
+++ b/tests/test-extension	Sun Feb 07 14:01:43 2010 +0100
@@ -153,3 +153,27 @@
 
 echo % show extensions
 hg debugextensions
+
+echo '% disabled extension commands'
+HGRCPATH=
+hg help email
+hg qdel
+hg churn
+echo '% disabled extensions'
+hg help churn
+hg help patchbomb
+echo '% broken disabled extension and command'
+mkdir hgext
+echo > hgext/__init__.py
+cat > hgext/broken.py <<EOF
+"broken extension'
+EOF
+TMPPYTHONPATH="$PYTHONPATH"
+PYTHONPATH="`pwd`:$PYTHONPATH"
+export PYTHONPATH
+hg help broken
+hg help foo > /dev/null
+PYTHONPATH="$TMPPYTHONPATH"
+export PYTHONPATH
+
+exit 0