check filetype by extension only (performance is key, avoid reading the file itself)

Author: SeeSharpSoft

CHANGELOG

@@ -1,3 +1,8 @@
+2.16.2
+Apr 21, 2021
+
+FIX: Editor complaining about crashes on PyCharm 2021.1 #274
+
 2.16.1
 Apr 20, 2021
 

build.gradle

@@ -28,7 +28,7 @@ jacocoTestReport {
 }
 
 group 'net.seesharpsoft.intellij.plugins'
-version '2.16.1'
+version '2.16.2'
 
 apply plugin: 'java'
 project.sourceCompatibility = JavaVersion.VERSION_11

src/main/java/net/seesharpsoft/intellij/plugins/csv/CsvHelper.java

@@ -2,6 +2,9 @@
 
 import com.intellij.lang.*;
 import com.intellij.lexer.Lexer;
+import com.intellij.openapi.fileTypes.FileType;
+import com.intellij.openapi.fileTypes.FileTypeManager;
+import com.intellij.openapi.fileTypes.FileTypeRegistry;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.PsiElement;
@@ -20,6 +23,8 @@
 import net.seesharpsoft.intellij.plugins.csv.psi.CsvRecord;
 import net.seesharpsoft.intellij.plugins.csv.psi.CsvTypes;
 import net.seesharpsoft.intellij.plugins.csv.settings.CsvEditorSettings;
+import net.seesharpsoft.intellij.plugins.psv.PsvFileType;
+import net.seesharpsoft.intellij.plugins.tsv.TsvFileType;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.HashMap;
@@ -45,6 +50,20 @@ public static PsiElement createEmptyCsvField(PsiFile psiFile) {
         return node.getPsi();
     }
 
+    public static boolean isCsvFile(String extension) {
+        switch(extension.toLowerCase()) {
+            case "csv":
+            case "tsv":
+            case "tab":
+            case "psv":
+                return true;
+        }
+        FileType fileType = FileTypeRegistry.getInstance().getFileTypeByExtension(extension);
+        return fileType == CsvFileType.INSTANCE ||
+                fileType == TsvFileType.INSTANCE ||
+                fileType == PsvFileType.INSTANCE;
+    }
+
     public static boolean isCsvFile(Project project, VirtualFile file) {
         if (project == null || file == null) {
             return false;

src/main/java/net/seesharpsoft/intellij/plugins/csv/components/CsvFileAttributes.java

@@ -63,7 +63,7 @@ public void cleanupAttributeMap(@NotNull Project project) {
             if (virtualFile == null) {
                 LOG.debug(fileName + " not found");
                 faultyFiles.add(fileName);
-            } else if (!CsvHelper.isCsvFile(project, virtualFile)) {
+            } else if (!CsvHelper.isCsvFile(virtualFile.getExtension())) {
                 LOG.debug(fileName + " is not a csv file");
                 faultyFiles.add(fileName);
             }

src/main/resources/META-INF/plugin.xml

@@ -55,6 +55,7 @@ NEW: "General" settings group
 FIX: Lower annotator severity to not appear as problem
 FIX: Prevent non CSV entries in CSV attributes map #268
 FIX: keep existing & correct entries in CSV attributes map
+HOTFIX: Editor complaining about crashes on PyCharm 2021.1 #274
       </pre>
     ]]>
     </change-notes>