add missing comments

rpc/cc/arduino/cli/commands/v1/commands.proto

@@ -179,6 +179,7 @@ service ArduinoCoreService {
   // Read the settings from a YAML file
   rpc ConfigurationOpen(ConfigurationOpenRequest) returns (ConfigurationOpenResponse);
 
+  // Get the current configuration
   rpc ConfigurationGet(ConfigurationGetRequest) returns (ConfigurationGetResponse);
 
   // Enumerate all the keys/values pairs available in the configuration
@@ -215,13 +216,16 @@ message InitResponse {
     TaskProgress task_progress = 2;
   }
   oneof message {
+    // The progress
     Progress init_progress = 1;
+    // The error in case the instance initialization failed.
     google.rpc.Status error = 2;
     // Selected profile information
     SketchProfile profile = 3;
   }
 }
 
+// Represent the reason why an instance initialization failed.
 enum FailedInstanceInitReason {
   // FAILED_INSTANCE_INIT_REASON_UNSPECIFIED the error reason is not specialized
   FAILED_INSTANCE_INIT_REASON_UNSPECIFIED = 0;
@@ -297,6 +301,7 @@ message UpdateLibrariesIndexResponse {
 }
 
 message IndexUpdateReport {
+  // The status of the index update
   enum Status {
     // The status of the index update is unspecified.
     STATUS_UNSPECIFIED = 0;

rpc/cc/arduino/cli/commands/v1/common.proto

@@ -27,8 +27,11 @@ message Instance {
 
 message DownloadProgress {
   oneof message {
+    // Start of the download.
     DownloadProgressStart start = 1;
+    // Update of the download.
     DownloadProgressUpdate update = 2;
+    // End of the download.
     DownloadProgressEnd end = 3;
   }
 }
@@ -214,7 +217,9 @@ message MonitorPortConfiguration {
 }
 
 message MonitorPortSetting {
+  // The setting id
   string setting_id = 1;
+  // The setting value
   string value = 2;
 }
 

rpc/cc/arduino/cli/commands/v1/compile.proto

@@ -133,8 +133,11 @@ message BuilderResult {
 }
 
 message ExecutableSectionSize {
+  // The name of the executable section
   string name = 1;
+  // The executable size
   int64 size = 2;
+  // The exectuable maximum size
   int64 max_size = 3;
 }
 

rpc/cc/arduino/cli/commands/v1/core.proto

@@ -61,6 +61,7 @@ message PlatformLoadingError {}
 message PlatformDownloadRequest {
   // Arduino Core Service instance from the `Init` response.
   Instance instance = 1;
+  // Vendor name of the platform (e.g., `arduino`).
   string platform_package = 2;
   // Architecture name of the platform (e.g., `avr`).
   string architecture = 3;

rpc/cc/arduino/cli/commands/v1/lib.proto

@@ -60,6 +60,7 @@ message LibraryInstallRequest {
   LibraryInstallLocation install_location = 6;
 }
 
+// The location where the library should be installed.
 enum LibraryInstallLocation {
   // In the `libraries` subdirectory of the user directory (sketchbook). This is
   // the default if not specified.
@@ -183,6 +184,7 @@ message LibrarySearchRequest {
   string search_args = 3;
 }
 
+// Represent the status of the library search.
 enum LibrarySearchStatus {
   // No search results were found.
   LIBRARY_SEARCH_STATUS_FAILED = 0;
@@ -355,13 +357,15 @@ message Library {
   bool in_development = 29;
 }
 
+// Represent the library layout
 enum LibraryLayout {
   // Library is in the 1.0 Arduino library format.
   LIBRARY_LAYOUT_FLAT = 0;
   // Library is in the 1.5 Arduino library format.
   LIBRARY_LAYOUT_RECURSIVE = 1;
 }
 
+// Represent the location of the library
 enum LibraryLocation {
   // In the configured 'builtin.libraries' directory.
   LIBRARY_LOCATION_BUILTIN = 0;

rpc/cc/arduino/cli/commands/v1/settings.proto

@@ -83,17 +83,28 @@ message Configuration {
     bool enable_notification = 1;
   }
 
+  // The configuration for the instance
   Directories directories = 1;
+  // The network configuration
   Network network = 2;
+  // The sketch configuration
   Sketch sketch = 3;
+  // The build cache configuration
   BuildCache build_cache = 4;
+  // The board manager configuration
   BoardManager board_manager = 5;
+  // The daemon configuration
   Daemon daemon = 6;
+  // The output configuration
   Output output = 7;
+  // The logging configuration
   Logging logging = 8;
+  // The library configuration
   Library library = 9;
+  // The updater configuration
   Updater updater = 10;
 
+  // The language locale
   optional string locale = 100;
 }
 

rpc/cc/arduino/cli/commands/v1/upload.proto

@@ -168,16 +168,21 @@ message BurnBootloaderResponse {
 }
 
 message ListProgrammersAvailableForUploadRequest {
+  // Arduino Core Service instance from the `Init` response.
   Instance instance = 1;
+  // Fully qualified board name of the target board (e.g., `arduino:avr:uno`).
   string fqbn = 2;
 }
 
 message ListProgrammersAvailableForUploadResponse {
+  // List of programmers supported by the board
   repeated Programmer programmers = 1;
 }
 
 message SupportedUserFieldsRequest {
+  // Arduino Core Service instance from the `Init` response.
   Instance instance = 1;
+  // Fully qualified board name of the target board (e.g., `arduino:avr:uno`).
   string fqbn = 2;
   // Protocol that will be used to upload, this information is
   // necessary to pick the right upload tool for the board specified