[EdgeTPU] Add EdgeTPUDebianToolchain (#1733)

- implemented parsing the cfg file to construct command
- used ini and fs packages to read cfg file

ONE-vscode-DCO-1.0-Signed-off-by: Bumsoo Ko <[email protected]>

Co-authored-by: Bumsoo Ko <[email protected]>
Co-authored-by: profornnan <[email protected]>

src/Backend/EdgeTPU/EdgeTPUToolchain.ts

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Command } from "../Command";
+import { DebianToolchain } from "../ToolchainImpl/DebianToolchain";
+
+import * as ini from "ini";
+import * as fs from "fs";
+import * as path from "path";
+import { Logger } from "../../Utils/Logger";
+
+class EdgeTPUDebianToolchain extends DebianToolchain {
+  run(cfg: string): Command {
+    let cmd = new Command("edgetpu_compiler");
+    var config = ini.parse(fs.readFileSync(cfg, "utf-8").trim());
+
+    if (config["edgetpu-compile"] === undefined) {
+      Logger.error(
+        "EdgeTPUDebianToolchain",
+        `The configuration file doesn't include 'edgetpu-compile' section.`
+      );
+
+      throw new Error(
+        `The configuration file doesn't include ''edgetpu-compile' section.`
+      );
+    }
+
+    let outDir = path.dirname(config["edgetpu-compile"]["output_path"]);
+    cmd.push("--out_dir");
+    cmd.push(outDir);
+
+    let intermediateTensors = config["edgetpu-compile"]["intermediate_tensors"];
+    if (intermediateTensors !== undefined) {
+      cmd.push("--intermediate_tensors");
+      cmd.push(intermediateTensors);
+    }
+
+    let showOperations = config["edgetpu-compile"]["show_operations"];
+    if (showOperations === "True") {
+      cmd.push("--show_operations");
+    }
+
+    let minRuntimeVersion = config["edgetpu-compile"]["min_runtime_version"];
+    if (minRuntimeVersion !== undefined) {
+      cmd.push("--min_runtime_version");
+      cmd.push(minRuntimeVersion);
+    }
+
+    let searchDelegate = config["edgetpu-compile"]["search_delegate"];
+    if (searchDelegate === "True") {
+      cmd.push("--search_delegate");
+    }
+
+    let delegateSearchStep = config["edgetpu-compile"]["delegate_search_step"];
+    if (delegateSearchStep !== undefined) {
+      cmd.push("--delegate_search_step");
+      cmd.push(delegateSearchStep);
+    }
+
+    let inputPath = config["edgetpu-compile"]["input_path"];
+    cmd.push(inputPath);
+
+    return cmd;
+  }
+}
+
+export { EdgeTPUDebianToolchain };

src/Tests/Backend/EdgeTPU/EdgeTPUToolchain.test.ts

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { assert } from "chai";
+
+import { EdgeTPUDebianToolchain } from "../../../Backend/EdgeTPU/EdgeTPUToolchain";
+import { ToolchainInfo } from "../../../Backend/Toolchain";
+import { Version } from "../../../Backend/Version";
+import { TestBuilder } from "../../TestBuilder";
+
+const content = `
+[edgetpu-compile]
+input_path=/home/workspace/models/sample.tflite
+output_path=/home/workspace/models/sample_edge_tpu.tflite
+intermediate_tensors=tensorName1,tensorName2
+show_operations=True
+min_runtime_version=14
+search_delegate=True
+delegate_search_step=4
+`;
+
+const relativeOutputPathcontent = `
+[edgetpu-compile]
+input_path=./sample.tflite
+output_path=./sample_edge_tpu.tflite
+intermediate_tensors=tensorName1,tensorName2
+show_operations=True
+min_runtime_version=14
+search_delegate=True
+delegate_search_step=4
+`;
+
+suite("Backend", function () {
+  suite("EdgeTPUDebianToolchain", function () {
+    let testBuilder: TestBuilder;
+
+    setup(() => {
+      testBuilder = new TestBuilder(this);
+      testBuilder.setUp();
+    });
+
+    teardown(() => {
+      testBuilder.tearDown();
+    });
+
+    suite("#run", function () {
+      test("returns Command with cfg", function () {
+        testBuilder.writeFileSync("file.cfg", content);
+        const cfgFilePath = testBuilder.getPath("file.cfg");
+
+        const name = "EdgeTPU";
+        const desc = "EdgeTPU Compiler";
+        const version = new Version(0, 1, 0);
+        const info = new ToolchainInfo(name, desc, version);
+        let dt = new EdgeTPUDebianToolchain(info);
+        let cmd = dt.run(cfgFilePath);
+
+        const expectedStrs: string[] = [
+          "edgetpu_compiler",
+          "--out_dir",
+          "/home/workspace/models",
+          "--intermediate_tensors",
+          "tensorName1,tensorName2",
+          "--show_operations",
+          "--min_runtime_version",
+          "14",
+          "--search_delegate",
+          "--delegate_search_step",
+          "4",
+          "/home/workspace/models/sample.tflite",
+        ];
+
+        assert.deepEqual(cmd, expectedStrs);
+      });
+
+      test("returns Command with cfg containing relative input path", function () {
+        testBuilder.writeFileSync("file.cfg", relativeOutputPathcontent);
+        const cfgFilePath = testBuilder.getPath("file.cfg");
+
+        const name = "EdgeTPU";
+        const desc = "EdgeTPU Compiler";
+        const version = new Version(0, 1, 0);
+        const info = new ToolchainInfo(name, desc, version);
+        let dt = new EdgeTPUDebianToolchain(info);
+        let cmd = dt.run(cfgFilePath);
+
+        const expectedStrs: string[] = [
+          "edgetpu_compiler",
+          "--out_dir",
+          ".",
+          "--intermediate_tensors",
+          "tensorName1,tensorName2",
+          "--show_operations",
+          "--min_runtime_version",
+          "14",
+          "--search_delegate",
+          "--delegate_search_step",
+          "4",
+          "./sample.tflite",
+        ];
+
+        assert.deepEqual(cmd, expectedStrs);
+      });
+    });
+  });
+});