view tests/test-alias.out @ 9851:9e7b2c49d25d

Make it possible to debug failed hook imports via use of --traceback

Prior to this change, if a Python hook module failed to load (e.g. due
to an import error or path problem), it was impossible to figure out
why the error occurred, because the ImportErrors that got raised were
caught but never displayed.

If run with --traceback or ui.traceback=True, hg now prints tracebacks
of both of the ImportError instances that get raised before it bails.

% basic
% unknown
alias 'unknown' resolves to unknown command 'bargle'
% ambiguous
alias 'ambiguous' resolves to ambiguous command 's'
% recursive
alias 'recursive' resolves to unknown command 'recursive'
% no definition
no definition for alias 'nodefinition'
adding foo
% with opts
C foo
% with opts and whitespace
0 e63c23eaa88a | 1970-01-01 00:00 +0000
% interaction with defaults
0:e63c23eaa88a
-1:000000000000
% properly recursive
changeset:   -1:0000000000000000000000000000000000000000
parent:      -1:0000000000000000000000000000000000000000
parent:      -1:0000000000000000000000000000000000000000
manifest:    -1:0000000000000000000000000000000000000000
user:        
date:        Thu Jan 01 00:00:00 1970 +0000
extra:       branch=default