Add recommended hgrc

hgrc

+# This .hgrc is recommended for working on the Adblock Plus project.

[Wladimir Palant, 2016/02/20 17:50:48]

General notes:

1) The order is wrong, obvious stuff ([ui], [defaults]) should go first,
extensions and extension settings should be listed after that.

2) An essential setting is missing:

[diff]
git = true

Without this Mercurial won't produce binary diffs.

[Felix Dahlke, 2016/02/20 20:16:38]

Don't feel nearly as strong about that, changed it.
Added. Not sure how I got by without that so far.

+#
+# When using this as your .hgrc as-is, it provides a nicer user interface and
+# enables some extensions that are useful for working on any project.
+#
+# The commented parts are more specific to the Adblock Plus project and might
+# not make sense if you also work on other Mercurial projects. Have a look and
+# decide for yourself what you want to enable. When you are not working on any
+# other projects using Mercurial, it is recommended that you uncomment
+# everything.
+
+# Extensions
+#
+# Mercurial is, out of the box, fairly minimal. A lot of useful functionality
+# comes as extensions. Most of the useful extensions are even part of the
+# default Mercurial distribution, but not enabled by default.
+[extensions]
+
+# Pager extension, shows the output of commands like `hg log` in a pager.
+pager =

[Wladimir Palant, 2016/02/20 17:50:48]

I don't use that, find it pretty annoying actually and would love to disable in
Git - my terminal has scrollback. I don't think such extensions which are really
a matter of taste belong here, maybe as recommendation for something to look at.

Nit: "shows in a pager" doesn't actually explain anything. Maybe "shows the
output page by page"?

[Felix Dahlke, 2016/02/20 20:16:38]

Hm, didn't think anyone would not want that. So you always specify `-l` I
suppose? Made it opt-in then.
I think it does explain this adequately, a terminal pager is a thing. I've
clarified this a bit more.

[Wladimir Palant, 2016/02/22 11:05:26]

Yes, I have "log = -l 5" set under [defaults].

+
+# Color extension, colours the output of commands lke `hg log`.
+color =

[Wladimir Palant, 2016/02/20 17:50:48]

Same here. While this is usually useful, it produces a horrible mess on Windows.

Nits: colours => colors (we generally use AE), lke => like

[Felix Dahlke, 2016/02/20 20:16:38]

Done.

+
+# Progress extension, shows an ASCII progress bar for operations that take,
+# longer.

[Wladimir Palant, 2016/02/20 17:50:48]

No comma after take.

[Felix Dahlke, 2016/02/20 20:16:39]

Done.

+progress =
+
+# Rebase extension, provides the `hg rebase` command, see:
+# https://www.mercurial-scm.org/wiki/RebaseExtension
+rebase =
+
+# Record extension, provides the `hg record` command that allows you to make
+# partial commits.
+record =
+
+# Purge extension, provides the `hg purge` (aliased to `hg clean` command that
+# allows you to clean unversioned files.

[Wladimir Palant, 2016/02/20 17:50:48]

Nit: You need to close that parenthesis somewhere.

[Felix Dahlke, 2016/02/20 20:16:38]

Done.

+purge =
+
+# Shelve extension, provides the `hg shelve` command that allows you to set
+# pending changes aside, see:
+# https://www.mercurial-scm.org/wiki/ShelveExtension
+shelve =

[Wladimir Palant, 2016/02/20 17:50:48]

I couldn't find any use for that when working with bookmarked branches.

[Felix Dahlke, 2016/02/20 20:16:39]

Not? I use it on a weekly basis, just like git stash. I don't always want to
make a new branch out of my WIP changes when just quickly fixing a typo or
something. Plus, it's more beginner friendly. No particularly strong opinion
about not enabling it by default, but I don't think one extra command hurts. Not
everyone will use histedit or record, either.

+
+# Strip extension, provides the `hg strip` command that allows you to remove
+# existing changesets.
+strip =
+
+# Histedit extension. Provides the `hg histedit` command that allows you to
+# change and merge existing changesets, see:
+# https://www.mercurial-scm.org/wiki/HisteditExtension
+histedit =
+
+# Configuration for the pager extension, see above.
+[pager]
+pager = LESS='FSRX' less
+
+# User interface controls
+[ui]
+# Sets your global user name. If you do not uncomment this, you will have to
+# set it on a per-repository basis.
+#username = Jane Bloggs <jane@adblockplus.org>

[Wladimir Palant, 2016/02/20 17:50:48]

I hope we never hire a Jane...

The explanation is rather strange. I think the second sentence should rather be:
"You have to set this or all your commits will show up with a weird
auto-generated author name."

[Felix Dahlke, 2016/02/20 20:16:38]

Is that what happens for you? I always get this:

$ hg init foo
$ cd foo
$ touch bar
$ hg add bar
$ hg commit -m "Initial commit"
abort: no username supplied
(use "hg config --edit" to set your username)

(Yes, I do not have username in ~/.hgrc, I'm working on non-ABP Mercurial
projects.)

[Wladimir Palant, 2016/02/22 11:05:26]

Weird, same here - supposedly working like that since at least 2007
(https://www.selenic.com/hg/rev/78a0dd93db0b). I could verify that on Windows
and OS X. Yet I'm certain that not too long ago someone again managed to push
commits with a misconfigured user name... And I've seen that issue myself, yet I
started using Mercurial after 2007.

+
+# Aliases
+#
+# These change the default behaviour of common Mercurial commands.
+[alias]

[Felix Dahlke, 2016/02/20 12:01:37]

Any other suggestions for useful aliases I couldn't think of?

Note that I haven't added the `update` -> `update -r master` alias you suggested
because I still want to investigate if there really is no difference between `hg
update` and `hg update -r default` - I think there is.

+
+# `hg log` shows the history of all branches by default, not just that of the
+# current branch. The `--graph` option shows this as an ASCII tree, which makes
+# the history a lot easier to read.
+log = log --graph
+
+# `hg clone` updates to the tip by default, which is just the latest changeset,
+# on any branch. You most likely want to update to the "master" bookmark
+# instead, which you can do by adding `--updaterev master`. By uncommenting the
+# following alias, you won't have to worry about that:
+#clone = clone --updaterev master
+
+# `hg push` will by default attempt to push all changesets, including bookmarked
+# branches that you might want to just keep locally. To avoid this, you need to
+# add `--rev master`. By uncommenting the following alias, you won't have to
+# worry about that:
+#push = push --rev master

[Wladimir Palant, 2016/02/20 17:50:47]

You are misusing aliases here, you should use [defaults] section instead:

[defaults]
log = --graph
clone = --updaterev master
push = --rev master
outgoing = --rev master

Note that I added outgoing, I forgot this one before.

[Felix Dahlke, 2016/02/20 20:16:38]

Oh nice, forgot that that's possible. Using aliases for this seemed hacky. (Yes,
I do not have any defaults or aliases currently.)

Done.