fixes

src/commonMain/kotlin/pga/common.kt

@@ -14,7 +14,7 @@ data class ActionUsage(
 
 val cache = mutableMapOf<ActionUsage, ActionUsage?>()
 
-internal val REGEX = Regex("([ -]*uses: *)([A-Za-z0-9_.-]*)/([A-Za-z0-9_.-/]*)@([^\\s#]+)(.*)")
+internal val REGEX = Regex("([ -]*uses: *)([A-Za-z0-9_.-]*)/([A-Za-z0-9_./-]*)@([^\\s#]+)(.*)")
 internal fun processLine(line: String, index: Int, block: (ActionUsage) -> ActionUsage?): String {
   val matchResult = REGEX.matchEntire(line)
   if (matchResult == null) {

src/commonMain/kotlin/pga/github.kt

@@ -1,6 +1,5 @@
 package pga
 
-import io.ktor.client.*
 import io.ktor.client.call.*
 import io.ktor.client.request.*
 import io.ktor.client.statement.*
@@ -26,8 +25,9 @@ fun getSha(owner: String, name: String, tagOrBranch: String): String? {
  *
  * @throws Exception if there is a network error or if the response cannot be handled
  */
-fun getLatestTag(owner: String, name: String): Tag? {
-  val json = getJson("https://api.github.com/repos/$owner/$name/tags")
+fun getLatestTag(owner: String, path: String): Tag? {
+  val repoName = path.substringBefore('/')
+  val json = getJson("https://api.github.com/repos/$owner/$repoName/tags").getOrThrow()
   if (json !is List<*>) {
     error("Unexpected response from the GitHub API: $json")
   }
@@ -49,22 +49,42 @@ data class Tag(val name: String, val sha: String)
  *
  * @throws Exception if there is a network error or if the response cannot be handled
  */
-internal fun getShaFromRef(owner: String, name: String, ref: String): String? {
+internal fun getShaFromRef(owner: String, path: String, ref: String): String? {
   //println("getShaFromRef($owner, $name, $ref)")
   /**
    * Some repositories contain several actions
    * See https://github.com/orgs/community/discussions/24990
    * See https://github.com/gradle/actions
    */
-  val repoName = name.substringBefore('/')
-  val json = getJson("https://api.github.com/repos/$owner/$repoName/git/ref/$ref")
-  if (json !is Map<*, *>) {
-    error("Unexpected response from the GitHub API: $json")
+  val repoName = path.substringBefore('/')
+  val result = getJson("https://api.github.com/repos/$owner/$repoName/git/ref/$ref")
+  return when (result) {
+    JsonNotFound -> {
+      null
+    }
+    is JsonSuccess -> {
+      val json = result.data
+      if (json !is Map<*, *>) {
+        error("Unexpected response from the GitHub API: $json")
+      }
+      json.get("object")?.asMap?.get("sha")?.asString
+    }
   }
-  return json.get("object")?.asMap?.get("sha")?.asString
 }
 
-private fun getJson(url: String): Any? {
+sealed interface JsonResult {
+  fun getOrThrow(): Any? {
+    if (this !is JsonSuccess) {
+      error("Json not found")
+    }
+    return data
+  }
+}
+
+class JsonSuccess(val data: Any?): JsonResult
+object JsonNotFound: JsonResult
+
+private fun getJson(url: String): JsonResult {
   return runBlocking {
     val response = httpClient.get(url) {
       val token = readConfig()?.token
@@ -74,25 +94,30 @@ private fun getJson(url: String): Any? {
     }
 
     if (response.status.value / 100 != 2) {
-      if (response.status.value == 403) {
-        if (response.headers.get("x-ratelimit-limit") == response.headers.get("x-ratelimit-used")) {
-          val expires = response.headers.get("x-ratelimit-reset")?.toLongOrNull()?.let {
-            Instant.fromEpochSeconds(it)
-          }?.let {
-            "until '$it'"
-          } ?: ""
-          println(
-            """You have reached the GitHub unauthenticated rate limit, please either:
-            |- wait $expires
-            |- or authenticate with `pin-github-actions --login`
-          """.trimMargin()
-          )
-          exitProcess(1)
-        }
+      when (response.status.value) {
+          403 -> {
+            if (response.headers.get("x-ratelimit-limit") == response.headers.get("x-ratelimit-used")) {
+              val expires = response.headers.get("x-ratelimit-reset")?.toLongOrNull()?.let {
+                Instant.fromEpochSeconds(it)
+              }?.let {
+                "until '$it'"
+              } ?: ""
+              println(
+                """You have reached the GitHub unauthenticated rate limit, please either:
+              |- wait $expires
+              |- or authenticate with `pin-github-actions --login`
+            """.trimMargin()
+              )
+              exitProcess(1)
+            }
+          }
+          404 -> {
+            return@runBlocking JsonNotFound
+          }
       }
       error("Received HTTP ${response.status.value} from ${response.request.url}")
     }
 
-    Json.parseToJsonElement(response.body()).toAny()
+    return@runBlocking JsonSuccess(Json.parseToJsonElement(response.body()).toAny())
   }
 }

src/commonTest/kotlin/pga/MainTest.kt

@@ -2,6 +2,7 @@ package pga
 
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
 
 class MainTest {
   @Test
@@ -25,7 +26,16 @@ class MainTest {
 
   @Test
   fun regex() {
-    val result = REGEX.matchEntire("        uses: martinbonnin/run-benchmarks@main")
-    check(result != null)
+    REGEX.matchEntire("        uses: martinbonnin/run-benchmarks@main").let {
+      assertNotNull(it)
+    }
+    REGEX.matchEntire("        uses: gradle/actions/setup-gradle@v3").let {
+      assertNotNull(it)
+    }
+  }
+
+  @Test
+  fun integrationTest() {
+    MainCommand().main(listOf("/Users/mbonnin/git/apollo-kotlin/.github/workflows"))
   }
 }