This extension is distributed with Mercurial 2.6 and up.
Author: Durham Goode
The blackbox extension logs events to .hg/blackbox.log for post-mortem debugging. It is useful for administrators to find out what a user did recently when trying to fix a repository.
By default the extension logs the following events:
- user commands and exit codes
- unhandled exceptions
- incoming revisions
- hooks that are run
The recent log entries can be viewed with the 'hg blackbox' command. Each log entry includes the date, time, and the user performing the action.
$ hg blackbox 2013/02/13 15:06:11 durham> pull -u 2013/02/13 15:06:14 durham> 17 incoming changes - new heads: 7daed3c67aaa 2013/02/13 15:06:14 durham> pull exited None after 3.28 seconds 2013/02/13 15:30:36 durham> log -l 1 --stat 2013/02/13 15:30:37 durham> log exited None after 0.75 seconds
Which events are logged can be configured by changing the blackbox.track setting in .hgrc.
Log only user commands:
[blackbox] track=command, commandfinish, commandexception
Log only incoming revisions:
Log only hooks:
[blackbox] track=exthook, pythonhook
3. Logging custom events
It's possible to log custom events to the blackbox from another extension or from elsewhere in mercurial by calling ui.log like so:
ui.log("myeventkind", "Something happened\n")
If the blackbox extension is enabled, the event will be logged as:
2013/02/13 15:30:44 durham> Something happened