Optimize config.ini updates and efficiency improvements report (#436)

* Optimize config.ini updates by batching shell executions

- Reduce up to 5 separate shell executions to 1 for AVD configuration
- Improves performance by eliminating redundant process spawns
- Add comprehensive efficiency report documenting all identified improvements
- All existing tests pass, no functional changes

Co-Authored-By: Yang <reactivecircus@gmail.com>

* Add compiled JS files and remove standalone efficiency report

- Include built lib/emulator-manager.js with batched config optimization
- Remove EFFICIENCY_REPORT.md as requested
- Efficiency report content will be moved to PR description

Co-Authored-By: Yang <reactivecircus@gmail.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Yang <reactivecircus@gmail.com>

Author: devin-ai-integration[bot]

lib/emulator-manager.js

@@ -50,20 +50,27 @@ function launchEmulator(systemImageApiLevel, target, arch, profile, cores, ramSi
                 console.log(`Creating AVD.`);
                 yield exec.exec(`sh -c \\"echo no | avdmanager create avd --force -n "${avdName}" --abi '${target}/${arch}' --package 'system-images;android-${systemImageApiLevel};${target};${arch}' ${profileOption} ${sdcardPathOrSizeOption}"`);
             }
-            if (cores) {
-                yield exec.exec(`sh -c \\"printf 'hw.cpu.ncore=${cores}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-            }
-            if (ramSize) {
-                yield exec.exec(`sh -c \\"printf 'hw.ramSize=${ramSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-            }
-            if (heapSize) {
-                yield exec.exec(`sh -c \\"printf 'hw.heapSize=${heapSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-            }
-            if (enableHardwareKeyboard) {
-                yield exec.exec(`sh -c \\"printf 'hw.keyboard=yes\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-            }
-            if (diskSize) {
-                yield exec.exec(`sh -c \\"printf 'disk.dataPartition.size=${diskSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
+            if (cores || ramSize || heapSize || enableHardwareKeyboard || diskSize) {
+                const configEntries = [];
+                if (cores) {
+                    configEntries.push(`hw.cpu.ncore=${cores}`);
+                }
+                if (ramSize) {
+                    configEntries.push(`hw.ramSize=${ramSize}`);
+                }
+                if (heapSize) {
+                    configEntries.push(`hw.heapSize=${heapSize}`);
+                }
+                if (enableHardwareKeyboard) {
+                    configEntries.push('hw.keyboard=yes');
+                }
+                if (diskSize) {
+                    configEntries.push(`disk.dataPartition.size=${diskSize}`);
+                }
+                if (configEntries.length > 0) {
+                    const configContent = configEntries.join('\\n') + '\\n';
+                    yield exec.exec(`sh -c \\"printf '${configContent}' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini"`);
+                }
             }
             // turn off hardware acceleration on Linux
             if (process.platform === 'linux' && disableLinuxHardwareAcceleration) {

src/emulator-manager.ts

@@ -37,24 +37,29 @@ export async function launchEmulator(
       );
     }
 
-    if (cores) {
-      await exec.exec(`sh -c \\"printf 'hw.cpu.ncore=${cores}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-    }
-
-    if (ramSize) {
-      await exec.exec(`sh -c \\"printf 'hw.ramSize=${ramSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-    }
+    if (cores || ramSize || heapSize || enableHardwareKeyboard || diskSize) {
+      const configEntries: string[] = [];
 
-    if (heapSize) {
-      await exec.exec(`sh -c \\"printf 'hw.heapSize=${heapSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-    }
-
-    if (enableHardwareKeyboard) {
-      await exec.exec(`sh -c \\"printf 'hw.keyboard=yes\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
-    }
+      if (cores) {
+        configEntries.push(`hw.cpu.ncore=${cores}`);
+      }
+      if (ramSize) {
+        configEntries.push(`hw.ramSize=${ramSize}`);
+      }
+      if (heapSize) {
+        configEntries.push(`hw.heapSize=${heapSize}`);
+      }
+      if (enableHardwareKeyboard) {
+        configEntries.push('hw.keyboard=yes');
+      }
+      if (diskSize) {
+        configEntries.push(`disk.dataPartition.size=${diskSize}`);
+      }
 
-    if (diskSize) {
-      await exec.exec(`sh -c \\"printf 'disk.dataPartition.size=${diskSize}\n' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini`);
+      if (configEntries.length > 0) {
+        const configContent = configEntries.join('\\n') + '\\n';
+        await exec.exec(`sh -c \\"printf '${configContent}' >> ${process.env.ANDROID_AVD_HOME}/"${avdName}".avd"/config.ini"`);
+      }
     }
 
     // turn off hardware acceleration on Linux