Remove Apache Commons dependencies (#840)

Co-authored-by: Harsh Shandilya <me@msfjarvis.dev>

1 files changed, 47 insertions, 0 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/FileUtils.kt b/app/src/main/java/com/zeapo/pwdstore/utils/FileUtils.kt
new file mode 100644
index 00000000..867ec0aa
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/FileUtils.kt
@@ -0,0 +1,47 @@
+/*
+ * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package com.zeapo.pwdstore.utils
+
+import java.io.File
+
+object FileUtils {
+    @JvmStatic
+    fun listFiles(dir: File, recursive: Boolean): Collection<File> {
+        val res = ArrayList<File>()
+        val files = dir.listFiles()
+
+        if (files != null && files.isNotEmpty()) {
+
+            files.forEach { file ->
+                // Check if the file is a directory and recursive add
+                if (file.isDirectory && recursive) {
+                    res.addAll(listFiles(file, recursive))
+                } else if (!file.isDirectory) {
+                    res.add(file)
+                }
+            }
+        }
+        return res
+    }
+
+    @JvmStatic
+    fun getBaseName(filename: String): String {
+        // Take the file name along with its extension
+        val indexName = filename.lastIndexOf('/')
+        val nameWithExtension = filename.substring(indexName + 1)
+
+        // Find the final '.' character in the previously calculated nameWithExtension
+        val indexExt = nameWithExtension.lastIndexOf('.')
+
+        // If no '.' is found in the name, we assume this is a directory and return the previously
+        // derived nameWithExtensions as-is, otherwise we slice out a substring from the first character
+        // to the last occurrence of '.' which we found earlier.
+        return if (indexExt == -1)
+            nameWithExtension
+        else
+            nameWithExtension.substring(0, indexExt)
+    }
+}