OCTRL-1021 Add package documentation for all Go packages (#733)

Copilot · knopers8 · web-flow · commit fd5d7a52142d · 2025-08-15T14:55:53.000+02:00
* Initial plan

* Add package documentation for core packages

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

* Add package documentation for configuration, core, executor, and integration packages

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

* Complete package documentation for all remaining packages

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

* Initial plan for addressing PR review comments

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

* Address PR review comments on package documentation

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

* Fix package documentation placement and remove go.mod changes

Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;

---------

Co-authored-by: copilot-swe-agent[bot] &lt;198982749+Copilot@users.noreply.github.com&gt;
Co-authored-by: knopers8 &lt;14327588+knopers8@users.noreply.github.com&gt;
diff --git a/apricot/apricot.go b/apricot/apricot.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package apricot implements the ALICE configuration service with templating,
+// load balancing and caching capabilities on top of the configuration store.
 package apricot
 
 import (
diff --git a/apricot/cacheproxy/service.go b/apricot/cacheproxy/service.go
@@ -1,3 +1,5 @@
+// Package cacheproxy provides a caching proxy implementation for the
+// configuration service, optimizing detector inventory lookups.
 package cacheproxy
 
 import (
diff --git a/apricot/local/service.go b/apricot/local/service.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package local implements a local configuration backend for the configuration
+// service, providing direct access to the backend storage without gRPC.
 package local
 
 import (
diff --git a/apricot/remote/service.go b/apricot/remote/service.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package remote implements a remote configuration backend for the configuration
+// service, accessing configuration handled by a different application via gRPC.
 package remote
 
 import (
diff --git a/coconut/app/constants.go b/coconut/app/constants.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package app provides application constants and metadata for the coconut
+// command line interface and its components.
 package app
 
 const (
diff --git a/coconut/cmd/environment.go b/coconut/cmd/environment.go
@@ -24,6 +24,8 @@
 
 //go:generate protoc -I=../../core -I=../../common --go_out=.. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:.. protos/o2control.proto
 
+// Package cmd implements the command line interface for coconut, providing
+// various subcommands for managing O² Control environments and configurations.
 package cmd
 
 import (
diff --git a/common/event/topic/topic.go b/common/event/topic/topic.go
@@ -22,6 +22,7 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package topic defines constants and types for event system topics.
 package topic
 
 type Topic string
diff --git a/common/event/writer.go b/common/event/writer.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package event provides event publishing and streaming functionality for
+// O² Control components, supporting Kafka and dummy event writers.
 package event
 
 import (
diff --git a/common/golangmetrics/metrics.go b/common/golangmetrics/metrics.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package golangmetrics provides Go runtime metrics collection and reporting
+// functionality for monitoring system resource usage and performance.
 package golangmetrics
 
 import (
diff --git a/common/logger/infologger/protocols.go b/common/logger/infologger/protocols.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package infologger provides InfoLogger protocol implementation for
+// integration with the ALICE InfoLogger logging system.
 package infologger
 
 type protoVersion string
diff --git a/common/monitoring/monitoring.go b/common/monitoring/monitoring.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package monitoring provides monitoring and metrics collection functionality
+// for O² Control components.
 package monitoring
 
 import (
diff --git a/common/product/constants.go b/common/product/constants.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package product provides version information and build metadata for
+// O² Control products and components.
 package product
 
 import (
diff --git a/common/utils/safeacks/safeacks.go b/common/utils/safeacks/safeacks.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package safeacks provides thread-safe acknowledgment handling for managing
+// communication between multiple senders and a single receiver.
 package safeacks
 
 import (
diff --git a/common/utils/uid/uid.go b/common/utils/uid/uid.go
@@ -22,6 +22,7 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package uid provides unique identifier generation functionality.
 package uid
 
 import (
diff --git a/common/utils/utils.go b/common/utils/utils.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package utils provides common utility functions for string manipulation,
+// data conversion, and various helper operations used across O² Control components.
 package utils
 
 import (
diff --git a/configuration/componentcfg/componentcfg.go b/configuration/componentcfg/componentcfg.go
@@ -23,6 +23,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package componentcfg provides component configuration management functionality,
+// including query handling and template processing for O² components.
 package componentcfg
 
 import (
diff --git a/configuration/service.go b/configuration/service.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package configuration provides interfaces and implementations for managing
+// runtime configuration of O² Control components and detectors.
 package configuration
 
 import (
diff --git a/configuration/template/fields.go b/configuration/template/fields.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package template provides template processing functionality for configuration
+// files, including custom field handling and template execution.
 package template
 
 import (
diff --git a/core/core.go b/core/core.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package core implements the main AliECS core functionality including
+// the gRPC API server, environment management, and integration with various services.
 package core
 
 import (
diff --git a/core/integration/bookkeeping/plugin.go b/core/integration/bookkeeping/plugin.go
@@ -31,6 +31,8 @@
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/run.proto
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/lhcFill.proto
 
+// Package bookkeeping provides integration with the ALICE Bookkeeping system
+// for tracking runs and retrieving LHC fill information.
 package bookkeeping
 
 import (
diff --git a/core/integration/ccdb/plugin.go b/core/integration/ccdb/plugin.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package ccdb provides integration with the Condition and Calibration Database (CCDB)
+// for creating and managing General Run Parameters (GRP) objects.
 package ccdb
 
 import (
diff --git a/core/integration/dcs/plugin.go b/core/integration/dcs/plugin.go
@@ -24,6 +24,8 @@
 
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/dcs.proto
 
+// Package dcs provides integration with the ALICE Detector Control System (DCS)
+// for managing detector operations and state compatibility checks.
 package dcs
 
 import (
diff --git a/core/integration/ddsched/plugin.go b/core/integration/ddsched/plugin.go
@@ -24,6 +24,8 @@
 
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/ddsched.proto
 
+// Package ddsched provides integration with the Data Distribution (DD) scheduler
+// for managing the pool of FLPs participating in data taking operations.
 package ddsched
 
 import (
diff --git a/core/integration/odc/plugin.go b/core/integration/odc/plugin.go
@@ -24,6 +24,8 @@
 
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/odc.proto
 
+// Package odc provides integration with the Online Device Control (ODC) system
+// for managing the ALICE event processing farm during data taking and offline processing.
 package odc
 
 import (
diff --git a/core/integration/plugin.go b/core/integration/plugin.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package integration provides the plugin system for integrating O² Control
+// with external services like DCS, Bookkeeping, ODC, and other ALICE systems.
 package integration
 
 import (
diff --git a/core/integration/testplugin/plugin.go b/core/integration/testplugin/plugin.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package testplugin provides a test integration plugin that serves as an example
+// and is used for testing the plugin system functionality.
 package testplugin
 
 import (
diff --git a/core/integration/trg/plugin.go b/core/integration/trg/plugin.go
@@ -25,6 +25,7 @@
 
 //go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative --go-grpc_out=require_unimplemented_servers=false:. protos/ctpecs.proto
 
+// Package trg provides integration with the ALICE trigger system.
 package trg
 
 import (
diff --git a/core/integration/trg/trgutil.go b/core/integration/trg/trgutil.go
@@ -22,6 +22,7 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package trg provides integration with the ALICE trigger system.
 package trg
 
 import (
diff --git a/core/repos/sshrepo.go b/core/repos/sshrepo.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package repos provides repository management functionality for accessing
+// and synchronizing Git repositories containing workflow templates and configurations.
 package repos
 
 import (
diff --git a/core/repos/varsource/varsource.go b/core/repos/varsource/varsource.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package varsource provides variable source management functionality for
+// tracking the origin and precedence of configuration variables in workflows.
 package varsource
 
 type Source int
diff --git a/core/task/channel/channel.go b/core/task/channel/channel.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package channel provides functionality for managing task communication channels,
+// including inbound and outbound channel configuration and message routing.
 package channel
 
 import (
diff --git a/core/task/schedutil/mesosutil.go b/core/task/schedutil/mesosutil.go
@@ -25,6 +25,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package schedutil provides scheduler utility functions for Apache Mesos
+// integration, including resource management and task scheduling helpers.
 package schedutil
 
 import (
diff --git a/core/task/sm/machine.go b/core/task/sm/machine.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package sm provides state machine functionality for task lifecycle management,
+// including state transitions and event handling.
 package sm
 
 type Transition struct {
diff --git a/core/task/taskclass/port/range.go b/core/task/taskclass/port/range.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package port provides port range management functionality for task
+// communication, including port range parsing and validation.
 package port
 
 import (
diff --git a/core/task/taskclass/resourcelimits.go b/core/task/taskclass/resourcelimits.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package taskclass provides task class definitions and resource management
+// for different types of tasks.
 package taskclass
 
 import "strconv"
diff --git a/core/task/taskop/messagetype.go b/core/task/taskop/messagetype.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package taskop provides task operation types and message handling functionality
+// for controlling task lifecycle and communication.
 package taskop
 
 import (
diff --git a/core/the/eventwriter.go b/core/the/eventwriter.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package the provides global event handling and state management for
+// the core system, including event writers and system-wide notifications.
 package the
 
 import (
diff --git a/core/workflow/callable/utils.go b/core/workflow/callable/utils.go
@@ -1,3 +1,5 @@
+// Package callable provides utility functions for workflow callable operations,
+// including timeout handling and trigger expression parsing.
 package callable
 
 import (
diff --git a/executor/executable/task.go b/executor/executable/task.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package executable provides platform-specific executable management functionality
+// for running and controlling tasks in the executor environment.
 package executable
 
 import (
diff --git a/executor/executorcmd/nopb/jsoncodec.go b/executor/executorcmd/nopb/jsoncodec.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package nopb provides non-protobuf encoding functionality including
+// JSON codec implementations for gRPC communication.
 package nopb
 
 import (
diff --git a/executor/executorutil/executorutil.go b/executor/executorutil/executorutil.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package executorutil provides utility functions for the executor,
+// including resource management and task execution helpers.
 package executorutil
 
 import (
diff --git a/occ/peanut/peanut.go b/occ/peanut/peanut.go
@@ -22,6 +22,8 @@
  * Intergovernmental Organization or submit itself to any jurisdiction.
  */
 
+// Package peanut implements a process execution and control utility for
+// OCClib-based O² processes, providing debugging and development support.
 package peanut
 
 import (

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+// Package cacheproxy provides a caching proxy implementation for the`
	`2`	`+// configuration service, optimizing detector inventory lookups.`
`1`	`3`	`package cacheproxy`
`2`	`4`
`3`	`5`	`import (`