Charlie xyhp915

Objectives/approach

Load config conditionally, based on a release flag passed in at the command line. We use juxt/aero to read a static config.edn file, passing in the release flag as aero's :profile.
Config should be exposed at runtime (in the browser / cljs) and macro-expansion time (clj). We store config in a plain map, app.env/config. Our build hook, app.build/load-env, updates this using alter-var-root!.
Whenever config has changed, shadow-cljs must invalidate its caches so that changes are picked up immediately. We do this in app.build/load-env by putting the current environment in the shadow build state, under [:compiler-options :external-config ::env].

Why this approach?

Reading config directly from macros breaks compiler caching - changing config will not cause changes to propagate to the build.
:clojure-defines (ie. goog-define) are not exposed in clj, & therefore can't be used by macros. We want one single way to expose config that

Clojure Destructuring Tutorial and Cheat Sheet

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

Note: These workarounds covered issues in lein-tools-deps 0.3.0-SNAPSHOT. If using 0.4.1 or later, you should not encounter the issues below.

The following provides some workarounds for some issues when using lein-tools-deps from Cursive on macOS.

Path to `clojure`

By default, the lein-tools-deps plugin won't see /usr/local/bin/clojure when Cursive processes project.clj, as it evidently has a degenerate path.

You will see an error like the following in the IntelliJ Event Log when it tries to process your project.clj file:

ssh

    -C  压缩数据传输
    -f  后台登录用户名密码
    -N  不执行shell[与 -g 合用]
    -g  允许打开的端口让远程主机访问        
    -L  本地端口转发
    -R  远程端口转发

-p ssh 端口

	// Example usage:
	//
	// void async function() {
	// let [clicks, onclick] = iterator()
	// document.querySelector('button').addEventListener('click', onclick)
	// for await (let click of clicks) console.log(click)
	// }()

	export default function iterator() {
	let done = false

	const first = source => {
	if (!source) return 'empty source'
	return [source[0], source.slice(1)]
	}

	// console.log('first', first('abc'), first(''))

	const inject = value => source => [value, source]

	// console.log('inject', inject(1)('123'), inject(2)(''))

	var request = require('request'),
	zlib = require('zlib');

	var headers = {
	"accept-charset" : "ISO-8859-1,utf-8;q=0.7,*;q=0.3",
	"accept-language" : "en-US,en;q=0.8",
	"accept" : "text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8",
	"user-agent" : "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.13+ (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2",
	"accept-encoding" : "gzip,deflate",
	};

	package main

	import (
	"fmt"
	"net/http"
	"sort"
	"time"
	)

	// a struct to hold the result from each request including an index

	(defn print-threads [& {:keys [headers pre-fn]
	:or {pre-fn identity}}]
	(let [thread-set (keys (Thread/getAllStackTraces))
	thread-data (mapv bean thread-set)
	headers (or headers (-> thread-data first keys))]
	(clojure.pprint/print-table headers (pre-fn thread-data))))

	(defn print-threads-str [& args]
	(with-out-str (apply print-threads args)))

Charlie xyhp915

Clojure Destructuring Tutorial and Cheat Sheet

Vectors and Sequences

Path to clojure

ssh

Path to `clojure`