Initial commit

mapitman · Aug 26, 2018 · fe30c1c · fe30c1c
commit fe30c1c
Show file tree

Hide file tree

Showing 4 changed files with 214 additions and 0 deletions.
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+bin/
+mdview
+mdview.exe
diff --git a/Makefile b/Makefile
@@ -0,0 +1,20 @@
+default: all
+all: linux windows darwin freebsd
+
+linux: bin/linux-amd64/mdview
+windows: bin/windows-amd64/mdview.exe
+darwin: bin/darwin-amd64/mdview
+freebsd: bin/freebsd-amd64/mdview
+
+bin/linux-amd64/mdview:
+	env GOOS=linux GOARCH=amd64 go build -o ./bin/linux-amd64/mdview
+bin/windows-amd64/mdview.exe:
+	env GOOS=windows GOARCH=amd64 go build -o ./bin/windows-amd64/mdview.exe
+bin/darwin-amd64/mdview:
+	env GOOS=darwin GOARCH=amd64 go build -o ./bin/darwin-amd64/mdview
+bin/freebsd-amd64/mdview:
+	env GOOS=freebsd GOARCH=amd64 go build -o ./bin/freebsd-amd64/mdview
+
+.PHONY: clean
+clean:
+	rm -rf ./bin
diff --git a/README.md b/README.md
@@ -0,0 +1,22 @@
+# Markdown View
+
+Formats markdown and launches it in a browser.
+
+## Install
+
+If you have Go installed...
+```sh
+go get github.com/mapitman/mdview
+```
+
+## Usage
+
+```sh
+mdview [options] <filename>
+Formats markdown and launches it in a browser.
+  -o string
+        Output filename. (Optional)
+```
+
+If you do not supply an output file, mdview will write a file to your 
+operating system's default temp directory.
diff --git a/main.go b/main.go
@@ -0,0 +1,169 @@
+package main
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/golang-commonmark/markdown"
+	"github.com/pkg/browser"
+)
+
+func main() {
+	outfilePtr := flag.String("o", "", "Output filename. (Optional)")
+	flag.Parse()
+	inputFilename := flag.Arg(0)
+
+	if inputFilename == "" {
+		os.Stderr.WriteString("Usage:\nmdview [options] <filename>\nFormats markdown and launches it in a browser.\n")
+		flag.PrintDefaults()
+		os.Exit(1)
+	}
+
+	dat, err := ioutil.ReadFile(inputFilename)
+	check(err)
+
+	md := markdown.New(markdown.XHTMLOutput(true), markdown.Nofollow(true))
+	html := md.RenderToString([]byte(dat))
+
+	outfilePath := *outfilePtr
+	if outfilePath == "" {
+		outfilePath = tempFileName("mdview", ".html")
+	}
+
+	f, err := os.Create(outfilePath)
+	check(err)
+	defer f.Close()
+	_, err = fmt.Fprintf(f, template, style, html)
+	check(err)
+	f.Sync()
+	err = browser.OpenFile(outfilePath)
+	check(err)
+}
+
+func tempFileName(prefix, suffix string) string {
+	randBytes := make([]byte, 16)
+	rand.Read(randBytes)
+	return filepath.Join(os.TempDir(), prefix+hex.EncodeToString(randBytes)+suffix)
+}
+
+func check(e error) {
+	if e != nil {
+		panic(e)
+	}
+}
+
+const template = "<!DOCTYPE html><html><head><style>%s</style></head><body class=\"markdown-body\">%s</body></html>"
+
+const style = `.markdown-body {box-sizing: border-box;min-width: 200px;max-width:
+	 	980px;margin: 0 auto;padding: 45px;}	@media (max-width: 767px) {.markdown-body
+		{padding: 15px;}}.markdown-body hr::after,.markdown-body::after{clear:both}
+		@font-face{font-family:octicons-link;src:url(data:font/woff;charset=utf-8;
+		base64,d09GRgABAAAAAAZwABAAAAAACFQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABEU0lHAAAGa
+		AAAAAgAAAAIAAAAAUdTVUIAAAZcAAAACgAAAAoAAQAAT1MvMgAAAyQAAABJAAAAYFYEU3RjbWFwAA
+		ADcAAAAEUAAACAAJThvmN2dCAAAATkAAAABAAAAAQAAAAAZnBnbQAAA7gAAACyAAABCUM+8IhnYXN
+		wAAAGTAAAABAAAAAQABoAI2dseWYAAAFsAAABPAAAAZwcEq9taGVhZAAAAsgAAAA0AAAANgh4a91oa
+		GVhAAADCAAAABoAAAAkCA8DRGhtdHgAAAL8AAAADAAAAAwGAACfbG9jYQAAAsAAAAAIAAAACABiATBt
+		YXhwAAACqAAAABgAAAAgAA8ASm5hbWUAAAToAAABQgAAAlXu73sOcG9zdAAABiwAAAAeAAAAME3QpOB
+		wcmVwAAAEbAAAAHYAAAB/aFGpk3jaTY6xa8JAGMW/O62BDi0tJLYQincXEypYIiGJjSgHniQ6umTsUE
+		yLm5BV6NDBP8Tpts6F0v+k/0an2i+itHDw3v2+9+DBKTzsJNnWJNTgHEy4BgG3EMI9DCEDOGEXzDADU
+		5hBKMIgNPZqoD3SilVaXZCER3/I7AtxEJLtzzuZfI+VVkprxTlXShWKb3TBecG11rwoNlmmn1P2WYcJ
+		czl32etSpKnziC7lQyWe1smVPy/Lt7Kc+0vWY/gAgIIEqAN9we0pwKXreiMasxvabDQMM4riO+qxM2o
+		gwDGOZTXxwxDiycQIcoYFBLj5K3EIaSctAq2kTYiw+ymhce7vwM9jSqO8JyVd5RH9gyTt2+J/yUmYlI
+		R0s04n6+7Vm1ozezUeLEaUjhaDSuXHwVRgvLJn1tQ7xiuVv/ocTRF42mNgZGBgYGbwZOBiAAFGJBIMA
+		AizAFoAAABiAGIAznjaY2BkYGAA4in8zwXi+W2+MjCzMIDApSwvXzC97Z4Ig8N/BxYGZgcgl52BCSQK
+		AA3jCV8CAABfAAAAAAQAAEB42mNgZGBg4f3vACQZQABIMjKgAmYAKEgBXgAAeNpjYGY6wTiBgZWBg2k
+		mUxoDA4MPhGZMYzBi1AHygVLYQUCaawqDA4PChxhmh/8ODDEsvAwHgMKMIDnGL0x7gJQCAwMAJd4MFw
+		AAAHjaY2BgYGaA4DAGRgYQkAHyGMF8NgYrIM3JIAGVYYDT+AEjAwuDFpBmA9KMDEwMCh9i/v8H8sH0/
+		4dQc1iAmAkALaUKLgAAAHjaTY9LDsIgEIbtgqHUPpDi3gPoBVyRTmTddOmqTXThEXqrob2gQ1FjwpDv
+		fwCBdmdXC5AVKFu3e5MfNFJ29KTQT48Ob9/lqYwOGZxeUelN2U2R6+cArgtCJpauW7UQBqnFkUsjAY/
+		kOU1cP+DAgvxwn1chZDwUbd6CFimGXwzwF6tPbFIcjEl+vvmM/byA48e6tWrKArm4ZJlCbdsrxksL1A
+		wWn/yBSJKpYbq8AXaaTb8AAHja28jAwOC00ZrBeQNDQOWO//sdBBgYGRiYWYAEELEwMTE4uzo5Zzo5b
+		2BxdnFOcALxNjA6b2ByTswC8jYwg0VlNuoCTWAMqNzMzsoK1rEhNqByEyerg5PMJlYuVueETKcd/89u
+		BpnpvIEVomeHLoMsAAe1Id4AAAAAAAB42oWQT07CQBTGv0JBhagk7HQzKxca2sJCE1hDt4QF+9JOS0n
+		baaYDCQfwCJ7Au3AHj+LO13FMmm6cl7785vven0kBjHCBhfpYuNa5Ph1c0e2Xu3jEvWG7UdPDLZ4N92
+		nOm+EBXuAbHmIMSRMs+4aUEd4Nd3CHD8NdvOLTsA2GL8M9PODbcL+hD7C1xoaHeLJSEao0FEW14ckxC
+		+TU8TxvsY6X0eLPmRhry2WVioLpkrbp84LLQPGI7c6sOiUzpWIWS5GzlSgUzzLBSikOPFTOXqly7rqx
+		0Z1Q5BAIoZBSFihQYQOOBEdkCOgXTOHA07HAGjGWiIjaPZNW13/+lm6S9FT7rLHFJ6fQbkATOG1j2OF
+		MucKJJsxIVfQORl+9Jyda6Sl1dUYhSCm1dyClfoeDve4qMYdLEbfqHf3O/AdDumsjAAB42mNgYoAAZQ
+		YjBmyAGYQZmdhL8zLdDEydARfoAqIAAAABAAMABwAKABMAB///AA8AAQAAAAAAAAAAAAAAAAABAAAAAA==)
+		format('woff')}.markdown-body{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;
+		color:#24292e;font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",
+		Helvetica,Arial,sans-serif,\"Apple Color Emoji\",\"Segoe UI Emoji\",\"Segoe UI Symbol\"
+		;font-size:16px;line-height:1.5;word-wrap:break-word}.markdown-body .pl-c{color:#6a737d}
+		.markdown-body .pl-c1,.markdown-body .pl-s .pl-v{color:#005cc5}.markdown-body .pl-e,
+		.markdown-body .pl-en{color:#6f42c1}.markdown-body .pl-s .pl-s1,.markdown-body .pl-smi{color:#24292e}
+		.markdown-body .pl-ent{color:#22863a}.markdown-body .pl-k{color:#d73a49}.markdown-body .pl-pds,
+		.markdown-body .pl-s,.markdown-body .pl-s .pl-pse .pl-s1,.markdown-body .pl-sr,.markdown-body 
+		.pl-sr .pl-cce,.markdown-body .pl-sr .pl-sra,.markdown-body .pl-sr .pl-sre{color:#032f62}.markdown-body
+		.pl-smw,.markdown-body .pl-v{color:#e36209}.markdown-body .pl-bu{color:#b31d28}.markdown-body
+		.pl-ii{color:#fafbfc;background-color:#b31d28}.markdown-body .pl-c2{color:#fafbfc;background-color:#d73a49}
+		.markdown-body .pl-c2::before{content:\"^M\"}.markdown-body .pl-sr .pl-cce{font-weight:700;color:#22863a}
+		.markdown-body .pl-ml{color:#735c0f}.markdown-body .pl-mh,.markdown-body .pl-mh .pl-en,.markdown-body
+		.pl-ms{font-weight:700;color:#005cc5}.markdown-body .pl-mi{font-style:italic;color:#24292e}.markdown-body
+		.pl-mb{font-weight:700;color:#24292e}.markdown-body .pl-md{color:#b31d28;background-color:#ffeef0}
+		.markdown-body .pl-mi1{color:#22863a;background-color:#f0fff4}.markdown-body .pl-mc{color:#e36209;
+		background-color:#ffebda}.markdown-body .pl-mi2{color:#f6f8fa;background-color:#005cc5}
+		.markdown-body .pl-mdr{font-weight:700;color:#6f42c1}.markdown-body .pl-ba{color:#586069}
+		.markdown-body .pl-sg{color:#959da5}.markdown-body .pl-corl{text-decoration:underline;
+		color:#032f62}.markdown-body .octicon{display:inline-block;fill:currentColor;vertical-align:text-bottom}
+		.markdown-body hr::after,.markdown-body hr::before,.markdown-body::after,
+		.markdown-body::before{display:table;content:\"\"}.markdown-body a{background-color:transparent;
+		color:#0366d6;text-decoration:none}.markdown-body a:active,.markdown-body a:hover{outline-width:0}
+		.markdown-body h1{margin:.67em 0}.markdown-body img{border-style:none}.markdown-body hr{box-sizing:content-box}
+		.markdown-body input{font:inherit;margin:0;overflow:visible;font-family:inherit;font-size:inherit;line-height:inherit}
+		.markdown-body dl dt,.markdown-body strong,.markdown-body table th{font-weight:600}.markdown-body code,
+		.markdown-body pre{font-family:SFMono-Regular,Consolas,\"Liberation Mono\",Menlo,Courier,monospace}
+		.markdown-body [type=checkbox]{box-sizing:border-box;padding:0}.markdown-body *{box-sizing:border-box}
+		.markdown-body a:hover{text-decoration:underline}.markdown-body td,.markdown-body th{padding:0}
+		.markdown-body blockquote{margin:0}.markdown-body ol ol,.markdown-body ul ol{list-style-type:lower-roman}
+		.markdown-body ol ol ol,.markdown-body ol ul ol,.markdown-body ul ol ol,.markdown-body
+		ul ul ol{list-style-type:lower-alpha}.markdown-body dd{margin-left:0}.markdown-body 
+		.pl-0{padding-left:0!important}.markdown-body .pl-1{padding-left:4px!important}.markdown-body 
+		.pl-2{padding-left:8px!important}.markdown-body .pl-3{padding-left:16px!important}.markdown-body 
+		.pl-4{padding-left:24px!important}.markdown-body .pl-5{padding-left:32px!important}.markdown-body 
+		.pl-6{padding-left:40px!important}.markdown-body>:first-child{margin-top:0!important}
+		.markdown-body>:last-child{margin-bottom:0!important}.markdown-body a:not([href]){color:inherit;
+		text-decoration:none}.markdown-body .anchor{float:left;padding-right:4px;margin-left:-20px;
+		line-height:1}.markdown-body .anchor:focus{outline:0}.markdown-body blockquote,
+		.markdown-body dl,.markdown-body ol,.markdown-body p,.markdown-body pre,.markdown-body table,
+		.markdown-body ul{margin-top:0;margin-bottom:16px}.markdown-body hr{overflow:hidden;background:#e1e4e8;
+		height:.25em;padding:0;margin:24px 0;border:0}.markdown-body blockquote{padding:0 1em;color:#6a737d;
+		border-left:.25em solid #dfe2e5}.markdown-body h1,.markdown-body h2{padding-bottom:.3em;
+		border-bottom:1px solid #eaecef}.markdown-body blockquote>:first-child{margin-top:0}
+		.markdown-body blockquote>:last-child{margin-bottom:0}.markdown-body h1,.markdown-body h2,
+		.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6{margin-top:24px;
+		margin-bottom:16px;font-weight:600;line-height:1.25}.markdown-body h1 .octicon-link,.markdown-body 
+		h2 .octicon-link,.markdown-body h3 .octicon-link,.markdown-body h4 .octicon-link,.markdown-body 
+		h5 .octicon-link,.markdown-body h6 .octicon-link{color:#1b1f23;vertical-align:middle;visibility:hidden}
+		.markdown-body h1:hover .anchor,.markdown-body h2:hover .anchor,.markdown-body h3:hover .anchor,
+		.markdown-body h4:hover .anchor,.markdown-body h5:hover .anchor,.markdown-body h6:hover .anchor{text-decoration:none}
+		.markdown-body h1:hover .anchor .octicon-link,.markdown-body h2:hover .anchor .octicon-link,.markdown-body 
+		h3:hover .anchor .octicon-link,.markdown-body h4:hover .anchor .octicon-link,.markdown-body h5:hover .anchor 
+		.octicon-link,.markdown-body h6:hover .anchor .octicon-link{visibility:visible}.markdown-body h1{font-size:2em}
+		.markdown-body h2{font-size:1.5em}.markdown-body h3{font-size:1.25em}.markdown-body h4{font-size:1em}.markdown-body
+		h5{font-size:.875em}.markdown-body h6{font-size:.85em;color:#6a737d}.markdown-body ol,.markdown-body ul{padding-left:2em}
+		.markdown-body ol ol,.markdown-body ol ul,.markdown-body ul ol,.markdown-body ul ul{margin-top:0;margin-bottom:0}
+		.markdown-body li{word-wrap:break-all}.markdown-body li>p{margin-top:16px}.markdown-body li+li{margin-top:.25em}
+		.markdown-body dl{padding:0}.markdown-body dl dt{padding:0;margin-top:16px;font-size:1em;font-style:italic}.markdown-body
+		dl dd{padding:0 16px;margin-bottom:16px}.markdown-body table{border-spacing:0;border-collapse:collapse;display:block;
+		width:100%;overflow:auto}.markdown-body table td,.markdown-body table th{padding:6px 13px;border:1px solid #dfe2e5}
+		.markdown-body table tr{background-color:#fff;border-top:1px solid #c6cbd1}.markdown-body table 
+		tr:nth-child(2n){background-color:#f6f8fa}.markdown-body img{max-width:100%;box-sizing:content-box;background-color:#fff}
+		.markdown-body img[align=right]{padding-left:20px}.markdown-body img[align=left]{padding-right:20px}.markdown-body 
+		code{padding:.2em .4em;margin:0;font-size:85%;background-color:rgba(27,31,35,.05);border-radius:3px}.markdown-body 
+		pre{word-wrap:normal}.markdown-body pre>code{padding:0;margin:0;font-size:100%;word-break:normal;white-space:pre;background:0 0;
+		border:0}.markdown-body .highlight{margin-bottom:16px}.markdown-body .highlight pre{margin-bottom:0;word-break:normal}
+		.markdown-body .highlight pre,.markdown-body pre{padding:16px;overflow:auto;font-size:85%;line-height:1.45;
+		background-color:#f6f8fa;border-radius:3px}.markdown-body pre code{display:inline;max-width:auto;padding:0;margin:0;
+		overflow:visible;line-height:inherit;word-wrap:normal;background-color:transparent;border:0}.markdown-body 
+		.full-commit .btn-outline:not(:disabled):hover{color:#005cc5;border-color:#005cc5}.markdown-body kbd{display:inline-block;
+		padding:3px 5px;font:11px SFMono-Regular,Consolas,\"Liberation Mono\",Menlo,Courier,monospace;line-height:10px;color:#444d56;
+		vertical-align:middle;background-color:#fafbfc;border:1px solid #d1d5da;border-bottom-color:#c6cbd1;border-radius:3px;
+		box-shadow:inset 0 -1px 0 #c6cbd1}.markdown-body :checked+.radio-label{position:relative;z-index:1;border-color:#0366d6}
+		.markdown-body .task-list-item{list-style-type:none}.markdown-body .task-list-item+.task-list-item{margin-top:3px}
+		.markdown-body .task-list-item input{margin:0 .2em .25em -1.6em;vertical-align:middle}.markdown-body hr{border-bottom-color:#eee}`