Pietro Peterlongo pietroppeter

Language & VM design

A common issue while trying to use https://github.com/Vindaar/ggplotnim on Windows is the fact that it is not easy to satisfy the full list of dll for Cairo.

In an issue (Vindaar/ggplotnim#57) and related gist (https://gist.github.com/Vindaar/6cb4e93baff3e1ab88a7ab7ed1ae5686) one of the best options seems to be to install emacs and add its bin folder to the path.

Using a dll dependency analyzer (https://github.com/lucasg/Dependencies, found through SO: https://stackoverflow.com/questions/7378959/how-to-check-for-dll-dependency), I was able to list all the dlls required, which are the following 17 files (including libcairo-2.dll, total around 9MB).

So another solution instead of installing emacs is to download the dlls (see link to libcairo-deps.rar in comment) and copy them in ~\.nimble\bin.

List of all recursive dependencies for libcairo-2.dll:

	import markdown
	import std / strutils

	echo markdown("""
	```nim
	echo "hello"
	```*
	""".replace('*', ' '), config=initGfmConfig())
	#[
	<pre><code class="language-nim">echo "hello"

	# minib (a mini nimib)
	import strformat, macros
	import tempfile

	proc dup*(oldfd: FileHandle): FileHandle {.importc, header: "unistd.h".}
	proc dup2*(oldfd: FileHandle, newfd: FileHandle): cint {.importc, header: "unistd.h".}

	macro toStr*(body: untyped): string =
	(body.toStrLit)

	# compile with: nim c --app:lib -d:release add.nim
	# examine with: peni info -a add.dll
	# see https://forum.nim-lang.org/t/9446
	proc add*(num1, num2: int): int {.stdcall, exportc, dynlib.} =
	num1 + num2

	<!DOCTYPE html>
	<html>
	<head>
	<meta content="text/html; charset=utf-8" http-equiv="content-type">
	<title>world.nim</title>
	<meta content="width=device-width, initial-scale=1" name="viewport">
	<link rel='stylesheet' href='https://unpkg.com/normalize.css/' type='text/css'>
	<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/kognise/water.css@latest/dist/light.min.css">
	</head>
	<body>

	## iso week number
	## see https://en.wikipedia.org/wiki/ISO_week_date#Calculating_the_week_number_of_a_given_date
	import times

	type
	WeekRange = range[1 .. 53]

	proc lastWeek(year: int): WeekRange =
	## The long years, with 53 weeks in them, can be described as any year starting on Thursday and any leap year starting on Wednesday
	let firstWeekDay = initDateTime(1.MonthDayRange, mJan, year, 0, 0, 0).weekday

	sudo apt-get update
	sudo apt-get install libpangocairo-1.0-0
	sudo apt-get install libblas-dev liblapack-dev

	# git clone https://github.com/nim-lang/packages.git
	# then compile and run this file in the git repo
	import os, parsecsv, json, strutils

	proc runCommand(command: string) =
	let errorCode = os.execShellCmd(command)
	if errorCode != 0:
	echo "error running command: " & command
	quit(1)
	else: