[PATCH 2 of 2 V2] traceback: allow providing of a local support contact point

[Augie Fackler]

On Thu, Sep 17, 2015 at 12:11:35PM -0700, Pierre-Yves David wrote:
> # HG changeset patch
> # User Pierre-Yves David <pierre-yves.david at fb.com>
> # Date 1442000719 25200
> #      Fri Sep 11 12:45:19 2015 -0700
> # Node ID 224402df539757ac09d1ec0b0f707aa8fab75634
> # Parent  75a8b3abe7bc407e84153134dadfa3815443210d
> traceback: allow providing of a local support contact point

This appears to be queued as bf2bfc6f45fb.

>
> The extensions blaming code is fine for casual users but pretty terrible for
> corporate environments that can deploy a large amount of extensions to
> unsuspecting users. Reports will likely blame a random "innocent" extension (in
> our case crecord) and the hint in the message will triggers endless debug
> attempts from the user.
>
> We introduce a "ui.supportcontact" option that allow such big company to redirect
> their users to their own support desk. This disables all extensions blaming and
> just point people to the local support in all cases.
>
> diff --git a/mercurial/dispatch.py b/mercurial/dispatch.py
> --- a/mercurial/dispatch.py
> +++ b/mercurial/dispatch.py
> @@ -333,11 +333,11 @@ def _runcatch(req):
>          # of date) will be clueful enough to notice the implausible
>          # version number and try updating.
>          compare = myver.split('+')[0]
>          ct = tuplever(compare)
>          worst = None, ct, ''
> -        if True:
> +        if ui.config('ui', 'supportcontact', None) is None:
>              for name, mod in extensions.extensions():
>                  testedwith = getattr(mod, 'testedwith', '')
>                  report = getattr(mod, 'buglink', _('the extension author.'))
>                  if not testedwith.strip():
>                      # We found an untested extension. It's likely the culprit.
> @@ -365,13 +365,15 @@ def _runcatch(req):
>                           '** which supports versions %s of Mercurial.\n'
>                           '** Please disable %s and try your action again.\n'
>                           '** If that fixes the bug please report it to %s\n')
>                         % (name, testedwith, name, report))
>          else:
> +            bugtracker = ui.config('ui', 'supportcontact', None)
> +            if bugtracker is None:
> +                bugtracker = _("http://mercurial.selenic.com/wiki/BugTracker")
>              warning = (_("** unknown exception encountered, "
> -                         "please report by visiting\n") +
> -                       _("** http://mercurial.selenic.com/wiki/BugTracker\n"))
> +                         "please report by visiting\n** ") + bugtracker + '\n')
>          warning += ((_("** Python %s\n") % sys.version.replace('\n', '')) +
>                      (_("** Mercurial Distributed SCM (version %s)\n") % myver) +
>                      (_("** Extensions loaded: %s\n") %
>                       ", ".join([x[0] for x in extensions.extensions()])))
>          ui.log("commandexception", "%s\n%s\n", warning, traceback.format_exc())
> diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
> --- a/mercurial/help/config.txt
> +++ b/mercurial/help/config.txt
> @@ -1509,10 +1509,15 @@ User interface controls.
>      abbreviations. True or False. (default: False)
>
>  ``style``
>      Name of style to use for command output.
>
> +``supportcontact``
> +    Location pointed at in Mercurial traceback for reporting crash. Use this if
> +    you are a large organisation with it's own Mercurial deployement process and
> +    crash reports should be addressed to your internal support.
> +
>  ``timeout``
>      The timeout used when a lock is held (in seconds), a negative value
>      means no timeout. (default: 600)
>
>  ``traceback``
> diff --git a/tests/test-extension.t b/tests/test-extension.t
> --- a/tests/test-extension.t
> +++ b/tests/test-extension.t
> @@ -941,10 +941,19 @@ Older extension is tested with current v
>    ** If that fixes the bug please report it to http://example.com/bts
>    ** Python * (glob)
>    ** Mercurial Distributed SCM (version 1.9.3)
>    ** Extensions loaded: throw, older
>
> +Ability to point to a different point
> +  $ hg --config extensions.throw=throw.py --config extensions.older=older.py \
> +  >   --config ui.supportcontact='Your Local Goat Lenders' throw 2>&1 | egrep '^\*\*'
> +  ** unknown exception encountered, please report by visiting
> +  ** Your Local Goat Lenders
> +  ** Python * (glob)
> +  ** Mercurial Distributed SCM (*) (glob)
> +  ** Extensions loaded: throw, older
> +
>  Declare the version as supporting this hg version, show regular bts link:
>    $ hgver=`$PYTHON -c 'from mercurial import util; print util.version().split("+")[0]'`
>    $ echo 'testedwith = """'"$hgver"'"""' >> throw.py
>    $ if [ -z "$hgver" ]; then
>    >   echo "unable to fetch a mercurial version. Make sure __version__ is correct";
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