impl: support for downloading the releases.coder.com signature

Author: fioan89

src/main/kotlin/com/coder/toolbox/cli/CoderCLIManager.kt

@@ -158,11 +158,18 @@ class CoderCLIManager(
         val cliDownloadResult = withContext(Dispatchers.IO) {
             downloader.downloadCli(buildVersion, showTextProgress)
         }
+        if (cliDownloadResult.isSkipped()) return false
+        if (cliDownloadResult.isNotFoundOrFailed()) throw IllegalStateException("Could not find or download Coder CLI")
 
         var singatureDownloadResult = withContext(Dispatchers.IO) {
             downloader.downloadSignature(showTextProgress)
         }
 
+        if (singatureDownloadResult.isNotDownloaded()) {
+            context.logger.info("Trying to download signature file from releases.coder.com")
+            singatureDownloadResult = downloader.downloadReleasesSignature(showTextProgress)
+        }
+
         return cliDownloadResult.isDownloaded()
     }
 

src/main/kotlin/com/coder/toolbox/cli/downloader/CoderDownloadService.kt

@@ -13,6 +13,7 @@ import java.io.FileInputStream
 import java.net.HttpURLConnection.HTTP_NOT_FOUND
 import java.net.HttpURLConnection.HTTP_NOT_MODIFIED
 import java.net.HttpURLConnection.HTTP_OK
+import java.net.URI
 import java.net.URL
 import java.nio.file.Files
 import java.nio.file.Path
@@ -48,7 +49,7 @@ class CoderDownloadService(
             HTTP_OK -> {
                 context.logger.info("Downloading binary to $localBinaryPath")
                 response.saveToDisk(localBinaryPath, showTextProgress, buildVersion)?.makeExecutable()
-                DownloadResult.Downloaded(localBinaryPath)
+                DownloadResult.Downloaded(remoteBinaryURL, localBinaryPath)
             }
 
             HTTP_NOT_MODIFIED -> {
@@ -148,10 +149,14 @@ class CoderDownloadService(
     }
 
     suspend fun downloadSignature(showTextProgress: (String) -> Unit): DownloadResult {
+        return downloadSignature(remoteBinaryURL, showTextProgress)
+    }
+
+    private suspend fun downloadSignature(url: URL, showTextProgress: (String) -> Unit): DownloadResult {
         val defaultCliNameWithoutExt = context.settingsStore.defaultCliBinaryNameByOsAndArch.split('.').first()
         val signatureName = "$defaultCliNameWithoutExt.asc"
 
-        val signatureURL = remoteBinaryURL.withLastSegment(signatureName)
+        val signatureURL = url.withLastSegment(signatureName)
         val localSignaturePath = localBinaryPath.parent.resolve(signatureName)
         context.logger.info("Downloading signature from $signatureURL")
 
@@ -163,7 +168,7 @@ class CoderDownloadService(
         return when (response.code()) {
             HTTP_OK -> {
                 response.saveToDisk(localSignaturePath, showTextProgress)
-                DownloadResult.Downloaded(localSignaturePath)
+                DownloadResult.Downloaded(signatureURL, localSignaturePath)
             }
 
             HTTP_NOT_FOUND -> {
@@ -180,5 +185,10 @@ class CoderDownloadService(
                 )
             }
         }
+
+    }
+
+    suspend fun downloadReleasesSignature(showTextProgress: (String) -> Unit): DownloadResult {
+        return downloadSignature(URI.create("https://releases.coder.com/bin").toURL(), showTextProgress)
     }
 }

src/main/kotlin/com/coder/toolbox/cli/downloader/DownloadResult.kt

@@ -1,5 +1,6 @@
 package com.coder.toolbox.cli.downloader
 
+import java.net.URL
 import java.nio.file.Path
 
 
@@ -9,8 +10,14 @@ import java.nio.file.Path
 sealed class DownloadResult {
     object Skipped : DownloadResult()
     object NotFound : DownloadResult()
-    data class Downloaded(val savePath: Path) : DownloadResult()
+    data class Downloaded(val source: URL, val dst: Path) : DownloadResult()
     data class Failed(val error: Exception) : DownloadResult()
 
+    fun isSkipped(): Boolean = this is Skipped
+
+    fun isNotFoundOrFailed(): Boolean = this is NotFound || this is Failed
+
     fun isDownloaded(): Boolean = this is Downloaded
+
+    fun isNotDownloaded(): Boolean = this !is Downloaded
 }