Add old wiki content

content/docs/programming/_index.adoc

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+---
+title: "Programming"
+---

content/docs/programming/golang.adoc

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+---
+title: "Golang"
+---
+== Golang
+
+=== Handling interrupts
+
+[source,golang]
+----
+c := make(chan os.Signal, 1)
+signal.Notify(c, os.Interrupt)
+signal.Notify(c, syscall.SIGTERM)
+----

content/docs/programming/kotlin.adoc

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+---
+title: "Kotlin"
+---
+== Kotlin
+
+=== Assorted coroutine notes
+
+* *launched* in the context of a scope, e.g. `GlobalScope`
+* `launch` and `runBlocking` are both builders
+** Can parameterise `runBlocking` for e.g. tests - `runBlocking<Unit> {...}`
+** Builders return a job, can call `job.join()` to wait, `job.cancel()` to stop
+** Every builder adds a `CoroutineScope` to the scope of a code block
+** `launch`/`runBlocking` operate on current scope
+* `coroutineScope` is a builder to manually create a scope
+* `suspend` functions don't carry the scope
+** keep a reference in the class/fun
+** make them an extension method on CoroutineScope
+* Coroutines launched in `GlobalScope` don't keep the process alive if `main()` returns
+* Cancellation is co-operative - must throw `CancellationException`
+** Can check `isAlive` property
+** `withContext(NonCancellable)` if job *can't* be cancelled (e.g. suspend fun in a finally block)
+* `withTimeout` and `withTimeoutOrNull` cancel automatically
+* Children can be cancelled with `coroutineContext.cancelChildren()`
+* `async` is like `launch` but returns a `Deferred`
+* Contexts are job + dispatcher
+* Dispatcher specifies thread to run on
+* Launchers take an optional context
+** `launch(newSingleThreadContext("name")) {...}`
+* `GlobalScope`'s dispatcher uses a shared threadpool
+* Can get own job from `CoroutineContext[Job]`
+* `CoroutineName` gives named context
+** Can concat contexts with `+`
+* `select` can receive data from multiple channels, like Go

content/docs/software/_index.adoc

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+---
+title: "Software"
+---

content/docs/software/alpine.adoc

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+---
+title: "Alpine"
+---
+== Alpine
+
+* The equivalent of Ubuntu's `build-essential` is `build-base`

content/docs/software/git.adoc

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+---
+title: "Git"
+---
+== Git
+
+Clean up merged branches:
+
+[source,console]
+----
+$ git branch --merged master | grep -v "\* master" | xargs -n 1 git branch -d
+----

content/docs/software/linux.adoc

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+---
+title: "Linux"
+---
+== Linux
+
+* `iotop` adjusts priorities of I/O - `-c 3` is 'when idle'
+
+=== Resizing disks
+
+1. `fdisk` to delete and recreate the partition
+2. `resize2fs` to resize to the new partition

content/docs/software/miniflux.adoc

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+---
+title: "Miniflux"
+---
+== Miniflux
+
+=== Rewrite rules
+
+* add_dynamic_image
+* add_image_title

content/docs/software/windows.adoc

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+---
+title: "Windows"
+---
+== Windows
+
+* Win+Shift+S launches snipping tool in rectangle selection

content/docs/technologies/_index.adoc

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+---
+title: "Technologies"
+---

content/docs/technologies/irc.adoc

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+---
+title: "IRC"
+---
+== IRC
+
+=== WIP History of IRC
+
+* August 1988, first IRC server in use <<1>>
+* November 1988, international links established <<1>>
+* August 1990, EFNet splits from ANet <<1>> -- history?
+* December 1992, Undernet created <<1>> -- history?
+* May 1993, RFC published <<1>> -- better source
+* July 1994, Dalnet formed <<1>> -- history?
+* July 1996, IRCnet and EFnet split ("The Great Split") <<1>> -- history?
+* June 1998, IRCX <<3>>
+* 1998, Freenode (Open Project Network) started <<1>> -- history?
+* April 2000, RFC2812 <<4>>
+* 2002 - OPN becomes Freenode <<5>>
+
+==== Sources
+
+[bibliography]
+- [[[1]]]: https://daniel.haxx.se/irchistory.html
+- [[[2]]]: http://www.irc.org/history_docs/jarkko.html
+- [[[3]]]: https://tools.ietf.org/html/draft-pfenning-irc-extensions-04
+- [[[4]]]: https://tools.ietf.org/html/rfc2812
+- [[[5]]]: https://en.wikipedia.org/wiki/Openprojects