Add meta importing from Github

Fixes #11

1 files changed, 106 insertions, 0 deletions

diff --git a/app/static/package_create.js b/app/static/package_create.js
new file mode 100644
index 0000000..0bea7ca
--- /dev/null
+++ b/app/static/package_create.js
@@ -0,0 +1,106 @@
+$(function() {
+	function readConfig(text) {
+		var retval = {}
+
+		const lines = text.split("\n")
+		for (var i = 0; i < lines.length; i++) {
+			const idx = lines[i].indexOf("=")
+			if (idx > 0) {
+				const name = lines[i].substring(0, idx - 1).trim()
+				const value = lines[i].substring(idx + 1).trim()
+				retval[name] = value
+			}
+		}
+
+		return retval
+	}
+
+	function finish() {
+		$(".pkg_wiz_1").hide()
+		$(".pkg_wiz_2").hide()
+		$(".pkg_repo").show()
+		$(".pkg_meta").show()
+	}
+
+	function repoIsSupported(url) {
+		try {
+			return URI(url).hostname() == "github.com"
+		} catch(e) {
+			return false
+		}
+	}
+
+	function getFile(url) {
+		return new Promise(function(resolve, reject) {
+			fetch(url).then(function(response) {
+				response.text().then(resolve).catch(reject)
+			}).catch(reject)
+		})
+	}
+
+	function getInfo(baseUrl) {
+		return new Promise(function(resolve, reject) {
+			getFile(baseUrl + "/mod.conf").then(function(text) {
+				var config = readConfig(text)
+
+				if (config["name"]) {
+					$("#name").val(config["name"])
+				}
+
+				if (config["description"]) {
+					const desc = config["description"]
+					const idx = desc.indexOf(".")
+					$("#shortDesc").val((idx < 5 || idx > 100) ? desc.substring(0, 100) : desc.substring(0, idx))
+					$("#desc").val(desc)
+				}
+
+				resolve()
+			}).catch(function() {
+				reject()
+			})
+		})
+	}
+
+	function importInfo(urlstr) {
+		// Convert to HTTPs
+		try {
+			var url = URI(urlstr).scheme("https")
+				.username("")
+				.password("")
+		} catch(e) {
+			return Promise.reject(e)
+		}
+		// Change domain
+		url = url.hostname("raw.githubusercontent.com")
+
+		// Rewrite path
+		const re = /^\/([^\/]+)\/([^\/]+)\/?$/
+		const results = re.exec(url.path())
+		if (results == null || results.length != 3) {
+			return Promise.reject("Unable to parse URL - please provide a direct URL to the repo")
+		}
+		url.path("/" + results[1] + "/" + results[2].replace(".git", "") + "/master")
+
+		return getInfo(url.toString())
+	}
+
+	$(".pkg_meta").hide()
+	$(".pkg_wiz_1").show()
+	$("#pkg_wiz_1_next").click(function() {
+		const repoURL = $("#repo").val();
+		if (repoIsSupported(repoURL)) {
+			$(".pkg_wiz_1").hide()
+			$(".pkg_wiz_2").show()
+			$(".pkg_repo").hide()
+
+			importInfo(repoURL).then(finish).catch(function(x) {
+				alert(x)
+				$(".pkg_wiz_1").show()
+				$(".pkg_wiz_2").hide()
+				$(".pkg_repo").show()
+			})
+		} else {
+			finish()
+		}
+	})
+})