Radek Szymczyszyn erszcz

`Docs` chunk format proposal

Let's first look at some elixir_docs_v1 examples (Erlang syntax). The general chunk structure (from GenServer) is:

{elixir_docs_v1,
    [{docs,
         [{{'__using__',1},539,defmacro,[{'',[],'Elixir'}],false},
          {{abcast,3},

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

	%% See assertEqual in $ERLANG/lib/stdlib-2.6/include/assert.hrl for the original.
	-define(exmlAssertEqual(Example, Expr),
	begin
	((fun (__X, __V) ->
	case __V of
	__X -> ok;
	__V -> erlang:error({exmlAssertEqual,
	[{module, ?MODULE},
	{line, ?LINE},
	{expression, (??Expr)},

	%% graph_fsm.erl
	%%
	%% Author: Vance Shipley, Motivity Telecom Inc. <[email protected]>
	%% Date: November, 2000
	%%
	%%
	%% This library is free software; you can redistribute it and/or
	%% modify it under the terms of the GNU Lesser General Public
	%% License as published by the Free Software Foundation; either
	%% version 2 of the License, or (at your option) any later

	" d closes a tab
	map d closeTab

	" C-d/C-u scrolls down/up
	map <C-d> scrollPageDown
	map <C-u> scrollPageup

	" M-§ / A-§ switch to previous active tab / last used tab
	map <M-§> lastUsedTab
	map <A-§> lastUsedTab

	Last login: Wed Oct 25 18:19:04 on ttys005
	e18:20:30 erszcz @ x4 : ~
	$ erl
	-bash: erl: command not found
	18:20:30 erszcz @ x4 : ~
	$ . ~/apps/erlang/19.3.6.2/activate
	18:20:41 erszcz @ x4 : ~
	$ erl
	Erlang/OTP 19 [erts-8.3.5.2] [source] [64-bit] [smp:4:4] [async-threads:10] [kernel-poll:false]

	#!/usr/bin/env bash

	## Make Docker4Mac containers routable in a private network.
	## This is mostly a copy-paste from the original solution.
	## IT'S NOT A COMPLETE SOLUTION - this script only does the
	## steps necessary every time Docker4Mac is restarted.
	## Beforehand, you have to run the steps marked as ONCE yourself.
	## See https://github.com/docker/for-mac/issues/155#issuecomment-320509769

	set -e

	-module(agent).

	-compile([export_all]).

	test(CallerPid) ->
	CallerPid ! {agent, node(), self()}.

	-module(ct_helper).

	-compile([export_all]).

	%% @doc Like ct:get_config/1, but calls error/1 if Key is not found / undefined.
	%% This guarantees to fail fast if required config options are missing from
	%% the config file, saving trouble with `undefined` value propagation.
	%% Use alongside with the CT `require` mechanism.
	%% See s2s_SUITE for an example.
	-spec get_config(atom()) -> any().

	#!/usr/bin/env bash
	# file: node-name.sh

	set -eu

	PREFIX=history
	MAXNODES=100

	DEFAULT=${PREFIX}_$(uuidgen \| sed 's/-//g')

Radek Szymczyszyn erszcz

Docs chunk format proposal

Opening and closing an SSH tunnel in a shell script the smart way

`Docs` chunk format proposal