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state.go
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state.go
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package update
import (
"encoding/json"
"os"
"path/filepath"
"time"
"github.com/mitchellh/go-homedir"
"github.com/replicate/cog/pkg/util/console"
"github.com/replicate/cog/pkg/util/files"
)
type state struct {
Message string `json:"message"`
LastChecked time.Time `json:"lastChecked"`
Version string `json:"version"`
}
// loadState loads the update check state from disk, returning defaults if it does not exist
func loadState() (*state, error) {
state := state{}
p, err := statePath()
if err != nil {
return nil, err
}
exists, err := files.Exists(p)
if err != nil {
return nil, err
}
if !exists {
return &state, nil
}
text, err := os.ReadFile(p)
if err != nil {
console.Debugf("Failed to read %s: %s", p, err)
return &state, nil
}
err = json.Unmarshal(text, &state)
if err != nil {
return nil, err
}
return &state, nil
}
// writeState saves analytics state to disk
func writeState(s *state) error {
statePath, err := statePath()
if err != nil {
return err
}
bytes, err := json.MarshalIndent(s, "", " ")
if err != nil {
return err
}
dir := filepath.Dir(statePath)
if err := os.MkdirAll(dir, 0o700); err != nil {
return err
}
err = os.WriteFile(statePath, bytes, 0o600)
if err != nil {
return err
}
return nil
}
func userDir() (string, error) {
return homedir.Expand("~/.config/cog")
}
func statePath() (string, error) {
dir, err := userDir()
if err != nil {
return "", err
}
return filepath.Join(dir, "update-state.json"), nil
}