3e883f6976
Forgejo and Gitea SDK wrappers, multi-repo git utilities, AgentCI dispatch, distributed job orchestrator, and data collection pipelines. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
113 lines
2.7 KiB
Go
113 lines
2.7 KiB
Go
package collect
|
|
|
|
import (
|
|
"encoding/json"
|
|
"sync"
|
|
"time"
|
|
|
|
core "forge.lthn.ai/core/go/pkg/framework/core"
|
|
"forge.lthn.ai/core/go/pkg/io"
|
|
)
|
|
|
|
// State tracks collection progress for incremental runs.
|
|
// It persists entries to disk so that subsequent runs can resume
|
|
// where they left off.
|
|
type State struct {
|
|
mu sync.Mutex
|
|
medium io.Medium
|
|
path string
|
|
entries map[string]*StateEntry
|
|
}
|
|
|
|
// StateEntry tracks state for one source.
|
|
type StateEntry struct {
|
|
// Source identifies the collector.
|
|
Source string `json:"source"`
|
|
|
|
// LastRun is the timestamp of the last successful run.
|
|
LastRun time.Time `json:"last_run"`
|
|
|
|
// LastID is an opaque identifier for the last item processed.
|
|
LastID string `json:"last_id,omitempty"`
|
|
|
|
// Items is the total number of items collected so far.
|
|
Items int `json:"items"`
|
|
|
|
// Cursor is an opaque pagination cursor for resumption.
|
|
Cursor string `json:"cursor,omitempty"`
|
|
}
|
|
|
|
// NewState creates a state tracker that persists to the given path
|
|
// using the provided storage medium.
|
|
func NewState(m io.Medium, path string) *State {
|
|
return &State{
|
|
medium: m,
|
|
path: path,
|
|
entries: make(map[string]*StateEntry),
|
|
}
|
|
}
|
|
|
|
// Load reads state from disk. If the file does not exist, the state
|
|
// is initialised as empty without error.
|
|
func (s *State) Load() error {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
|
|
if !s.medium.IsFile(s.path) {
|
|
return nil
|
|
}
|
|
|
|
data, err := s.medium.Read(s.path)
|
|
if err != nil {
|
|
return core.E("collect.State.Load", "failed to read state file", err)
|
|
}
|
|
|
|
var entries map[string]*StateEntry
|
|
if err := json.Unmarshal([]byte(data), &entries); err != nil {
|
|
return core.E("collect.State.Load", "failed to parse state file", err)
|
|
}
|
|
|
|
if entries == nil {
|
|
entries = make(map[string]*StateEntry)
|
|
}
|
|
s.entries = entries
|
|
return nil
|
|
}
|
|
|
|
// Save writes state to disk.
|
|
func (s *State) Save() error {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
|
|
data, err := json.MarshalIndent(s.entries, "", " ")
|
|
if err != nil {
|
|
return core.E("collect.State.Save", "failed to marshal state", err)
|
|
}
|
|
|
|
if err := s.medium.Write(s.path, string(data)); err != nil {
|
|
return core.E("collect.State.Save", "failed to write state file", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Get returns a copy of the state for a source. The second return value
|
|
// indicates whether the entry was found.
|
|
func (s *State) Get(source string) (*StateEntry, bool) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
entry, ok := s.entries[source]
|
|
if !ok {
|
|
return nil, false
|
|
}
|
|
// Return a copy to avoid callers mutating internal state.
|
|
cp := *entry
|
|
return &cp, true
|
|
}
|
|
|
|
// Set updates state for a source.
|
|
func (s *State) Set(source string, entry *StateEntry) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
s.entries[source] = entry
|
|
}
|