kameloso IRC bot 2.0.0

[Anonymouse via Digitalmars-d-announce]

kameloso is an IRC bot based on mixins and UDAs.

It's available on GitHub at https://github.com/zorael/kameloso, 
or you can fetch and run it directly via dub.


```
dub run kameloso -- --nickname dman --server irc.freenode.net 
--homeChannels "#dmanfans" --guestChannels "#d,#freenode"

```

Add --monochrome to disable terminal colours. --help does what 
you'd expect it to, but you need to generate a configuration file 
to access all settings. See the README for help on getting 
started.


Ask me anything. All feedback appreciated!

Re: kameloso IRC bot

[Anonymouse via Digitalmars-d-announce]

On Saturday, 2 February 2019 at 15:45:11 UTC, Anonymouse wrote:

Announcing kameloso IRC bot, 1.0.0.

[...]

Tagging v1.2.0.

https://github.com/zorael/kameloso

It's been a while so diffs everywhere. One plugin was merged into 
another, a third was broken out of a fourth. Small tweaks, more 
clever things. Queued sends should not block the client by 
sleeping anymore. A few crashes fixed. Compilation memory use 
grew some. Binary size did too.


There's more Twitch stuff, but it remains optional at compilation 
since it's nothing you're going to use. As before, all plugins 
can be opted out from being compiled at all, by choice of dub 
build configuration or by manually tailoring dub.json[1]. So it's 
as lean as you want it to be. (Still pretty big.)


Plugins not crucial for the bot to properly operate can also be 
disabled at runtime, even if built, in the configuration file.


https://github.com/zorael/kameloso/blob/master/source/kameloso/plugins/hello.d

[1]: 
https://github.com/zorael/kameloso/blob/c00af3b9/dub.json#L22-L38



A week in 25 channels:

[...]
^C...caught signal 2!
[12:35:23] Aborting...
Number of collections:  8
Total GC prep time:  0 milliseconds
Total mark time:  42 milliseconds
Total sweep time:  2 milliseconds
Max Pause Time:  10 milliseconds
Grand total GC time:  46 milliseconds
GC summary:  176 MB,8 GC   46 ms, Pauses   43 ms <   10 ms
./kameloso --DRT-gcopt=profile:1   419.10s  user 1243.21s system 
0% cpu 180:06:10.53 total

avg shared (code): 0 KB
avg unshared (data/stack): 0 KB
total (sum):   0 KB
max memory:204 MB
page faults from disk: 0
other page faults: 6156

kameloso IRC bot

[Anonymouse via Digitalmars-d-announce]

Announcing kameloso IRC bot, 1.0.0.

It's a bot, not a parser library, though the parsing can 
technically be lifted out and reused.


On GitHub: https://github.com/zorael/kameloso, also 
https://kameloso.dub.pm.


There's notes to offline users, pasted URL title lookup, logs, 
automatic mode sets (e.g. +o on join), s/this/that/ substitution, 
user quotes, !seen, a basic Twitch streamer plugin. Some other 
legacy features and trivialities like the original venerable echo 
command. Ideas needed.


Absolute bare minimum required to try it:

git clone https://github.com/zorael/kameloso.git
cd kameloso
dub build
./kameloso --channels "#d,#freenode,##linuxmint"

With no other settings this will just be in client mode as a 
guest user and won't pollute the channels. (#d alone is too quiet 
to make a good example.) ./kameloso --writeconfig to set up 
further, see --help and the readme. Windows Powershell/cmd users 
may need an extra step to get terminal colours instead of \033[0m 
everywhere, see the readme.


The MVPs here are definitely UDAs, slices and mixin templates. 
There are some clever things in there that I'm really proud of, 
and some blemishes that I've learned to live with.


dscanner --sloc weighs it in at ~11k lines, excluding most tests. 
Much of it is @safe but it's not @nogc, nor -betterC. Naturally 
it tries to avoid allocating low-hanging fruit but there's 
Exceptions, associative and dynamic arrays, string 
concatenations, closures, and all kinds of convenient D things.


Parsing looks like this (automatically generated unit test): 
https://github.com/zorael/kameloso/commit/dde05a06


Plugins like this (automatically called module-level function):

@(IRCEvent.Type.CHAN)
@(PrivilegeLevel.anyone)
@(ChannelPolicy.home)
@BotCommand(PrefixPolicy.prefixed, "hello")
@BotCommand(PrefixPolicy.nickname, "poke")
@Description("Sends a hello world to the current channel.")
void onCommandHello(MyPlugin plugin, const IRCEvent event)
{
plugin.chan(event.channel, "Hello world!");
}

Because of how code.dlang.org and dub deals with versions 
(announces pre-releases but serves releases), having previously 
pulled this from there at any point up until now will have landed 
you with an ancient version. So please don't judge this by any 
previous builds.


A normal dub build takes 9 seconds with dmd on this laptop 
(Linux) and eats 4036 Mb of RAM, down from 7800+ Mb. Profiling 
does not seem to show any particular surprising hotspots anymore. 
All compilers segfault in various situations[1][2][3].


Feedback appreciated.


[1]: https://issues.dlang.org/show_bug.cgi?id=18026
[2]: https://issues.dlang.org/show_bug.cgi?id=19123
[3]: https://bugzilla.gdcproject.org/show_bug.cgi?id=307