view tests/test-diffdir.t @ 18669:18242716a014

blackbox: adds a blackbox extension

Adds a blackbox extension that listens to ui.log() and writes the messages to
.hg/blackbox.log. Future commits will use ui.log() to log commands, unhandled
exceptions, incoming changes, and hooks.  The extension defaults to logging
everything, but can be configured via blackbox.track to only log certain events.
Log lines are of the format:  "date time user> message"

Example log line:
2013/02/09 08:35:19 durham> 1 incoming changes - new heads: d84ced58aaa

  $ hg init
  $ touch a
  $ hg add a
  $ hg ci -m "a"

  $ echo 123 > b
  $ hg add b
  $ hg diff --nodates
  diff -r 3903775176ed b
  --- /dev/null
  +++ b/b
  @@ -0,0 +1,1 @@
  +123

  $ hg diff --nodates -r tip
  diff -r 3903775176ed b
  --- /dev/null
  +++ b/b
  @@ -0,0 +1,1 @@
  +123

  $ echo foo > a
  $ hg diff --nodates
  diff -r 3903775176ed a
  --- a/a
  +++ b/a
  @@ -0,0 +1,1 @@
  +foo
  diff -r 3903775176ed b
  --- /dev/null
  +++ b/b
  @@ -0,0 +1,1 @@
  +123

  $ hg diff -r ""
  hg: parse error: empty query
  [255]
  $ hg diff -r tip -r ""
  hg: parse error: empty query
  [255]