Detect a new update release in git history and post to ratchat

Sources/mechasqueak/Utilities/Shell.swift

@@ -0,0 +1,43 @@
+/*
+ Copyright 2021 The Fuel Rats Mischief
+
+ Redistribution and use in source and binary forms, with or without modification,
+ are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided with the distribution.
+
+ 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
+ products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+import Foundation
+
+func shell (_ launchPath: String, _ arguments: [String], currentDirectory: URL? = nil) -> String? {
+    let task = Process()
+    task.launchPath = launchPath
+    if let curDir = currentDirectory {
+        task.currentDirectoryURL = curDir
+    }
+    task.arguments = arguments
+
+    let pipe = Pipe()
+    task.standardOutput = pipe
+    task.launch()
+
+    let data = pipe.fileHandleForReading.readDataToEndOfFile()
+    let output = String(data: data, encoding: String.Encoding.utf8)
+
+    return output
+}

Sources/mechasqueak/main.swift

@@ -161,8 +161,12 @@ class MechaSqueak {
             && userJoin.channel.name.lowercased() == configuration.general.reportingChannel.lowercased() {
             mecha.reportingChannel = userJoin.channel
             mecha.rescueBoard.syncBoard()
-            if CommandLine.arguments.count > 2 {
-                mecha.reportingChannel?.send(message: "Update complete. Changes available here: \(CommandLine.arguments[2])")
+
+            if let gitDir = configuration.documentationPath {
+                let release = shell("/usr/bin/git", ["tag", "--points-at", "HEAD"], currentDirectory: gitDir)?.trimmingCharacters(in: .whitespacesAndNewlines)
+                if let releaseName = release, releaseName.count > 0 {
+                    mecha.reportingChannel?.send(message: "Update complete. Go here to read the latest changes: https://github.com/FuelRats/SwiftSqueak/releases/tag/\(releaseName)")
+                }
             }
         } else {
             accounts.lookup(user: userJoin.user)