refactor(coroutines): try to follow best practices regarding coroutines

Author: Blarc

src/main/kotlin/com/github/blarc/gitlab/template/lint/plugin/GitlabLintRunner.kt

@@ -8,7 +8,6 @@ import com.intellij.ui.EditorNotifications
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
 
 
 fun lintGitlabYaml(file: PsiFile) {
@@ -21,13 +20,10 @@ fun lint(file: PsiFile) {
     val project = file.project
     val pipeline = project.service<Pipeline>()
 
-    CoroutineScope(Dispatchers.IO).launch {
+    CoroutineScope(Dispatchers.Default).launch {
         withBackgroundProgress(file.project, GitlabLintBundle.message("inspection.title")) {
             pipeline.accept(file)
-
-            withContext(Dispatchers.Main) {
-                EditorNotifications.getInstance(project).updateAllNotifications()
-            }
+            EditorNotifications.getInstance(project).updateAllNotifications()
         }
     }
 }

src/main/kotlin/com/github/blarc/gitlab/template/lint/plugin/listeners/SaveActionListener.kt

@@ -20,4 +20,4 @@ class SaveActionListener(val project: Project) : FileDocumentManagerListener {
             super.beforeDocumentSaving(document)
         }
     }
-}
+}

src/main/kotlin/com/github/blarc/gitlab/template/lint/plugin/pipeline/middleware/LintContext.kt

@@ -12,6 +12,8 @@ import com.intellij.openapi.command.WriteCommandAction
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.service
 import com.intellij.openapi.fileEditor.FileEditorManager
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Service(Service.Level.PROJECT)
 class LintContext : Middleware {
@@ -78,7 +80,7 @@ class LintContext : Middleware {
         }
     }
 
-    private fun lintContent(
+    private suspend fun lintContent(
         gitlab: Gitlab,
         gitlabUrl: String,
         gitlabToken: String,
@@ -93,13 +95,15 @@ class LintContext : Middleware {
             fileText = pass.file.text
         }
 
-        return gitlab.lintContent(
-            gitlabUrl,
-            gitlabToken,
-            fileText,
-            remoteId,
-            branch,
-            showGitlabTokenNotification
-        ).get()
+        return withContext(Dispatchers.IO) {
+            gitlab.lintContent(
+                gitlabUrl,
+                gitlabToken,
+                fileText,
+                remoteId,
+                branch,
+                showGitlabTokenNotification
+            ).get()
+        }
     }
 }

src/main/kotlin/com/github/blarc/gitlab/template/lint/plugin/pipeline/middleware/ResolveContext.kt

@@ -17,6 +17,8 @@ import com.intellij.openapi.components.service
 import git4idea.repo.GitRemote
 import git4idea.repo.GitRepository
 import git4idea.repo.GitRepositoryManager
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
 
 @Service(Service.Level.PROJECT)
 class ResolveContext : Middleware {
@@ -75,8 +77,10 @@ class ResolveContext : Middleware {
         }
     }
 
-    private fun locateRepository(pass: Pass): GitRepository? {
-        val repository = GitRepositoryManager.getInstance(pass.project).getRepositoryForFile(pass.file.virtualFile)
+    private suspend fun locateRepository(pass: Pass): GitRepository? {
+        val repository = withContext(Dispatchers.IO) {
+            GitRepositoryManager.getInstance(pass.project).getRepositoryForFile(pass.file.virtualFile)
+        }
 
         showRepositoryNotification = if (repository == null) {
             sendNotification(Notification.repositoryNotFound(), pass.project)