96 lines
2.0 KiB
Go
96 lines
2.0 KiB
Go
// SPDX-License-Identifier: Apache-2.0
|
|
// Copyright Authors of K9s
|
|
|
|
package data
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"sync"
|
|
|
|
"github.com/derailed/k9s/internal/config/json"
|
|
"github.com/rs/zerolog/log"
|
|
"gopkg.in/yaml.v2"
|
|
"k8s.io/client-go/tools/clientcmd/api"
|
|
)
|
|
|
|
// Dir tracks context configurations.
|
|
type Dir struct {
|
|
root string
|
|
mx sync.Mutex
|
|
}
|
|
|
|
// NewDir returns a new instance.
|
|
func NewDir(root string) *Dir {
|
|
return &Dir{
|
|
root: root,
|
|
}
|
|
}
|
|
|
|
// Load loads context configuration.
|
|
func (d *Dir) Load(n string, ct *api.Context) (*Config, error) {
|
|
if ct == nil {
|
|
return nil, errors.New("api.Context must not be nil")
|
|
}
|
|
var (
|
|
path = filepath.Join(d.root, SanitizeContextSubpath(ct.Cluster, n), MainConfigFile)
|
|
cfg *Config
|
|
err error
|
|
)
|
|
if f, e := os.Stat(path); os.IsNotExist(e) || f.Size() == 0 {
|
|
log.Debug().Msgf("Context config not found! Generating... %q", path)
|
|
cfg, err = d.genConfig(path, ct)
|
|
} else {
|
|
log.Debug().Msgf("Found existing context config: %q", path)
|
|
cfg, err = d.loadConfig(path)
|
|
}
|
|
|
|
return cfg, err
|
|
}
|
|
|
|
func (d *Dir) genConfig(path string, ct *api.Context) (*Config, error) {
|
|
cfg := NewConfig(ct)
|
|
if err := d.Save(path, cfg); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return cfg, nil
|
|
}
|
|
|
|
func (d *Dir) Save(path string, c *Config) error {
|
|
d.mx.Lock()
|
|
defer d.mx.Unlock()
|
|
|
|
if err := EnsureDirPath(path, DefaultDirMod); err != nil {
|
|
return err
|
|
}
|
|
cfg, err := yaml.Marshal(c)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return os.WriteFile(path, cfg, DefaultFileMod)
|
|
}
|
|
|
|
func (d *Dir) loadConfig(path string) (*Config, error) {
|
|
d.mx.Lock()
|
|
defer d.mx.Unlock()
|
|
|
|
bb, err := os.ReadFile(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := JSONValidator.Validate(json.ContextSchema, bb); err != nil {
|
|
return nil, fmt.Errorf("validation failed for %q: %w", path, err)
|
|
}
|
|
|
|
var cfg Config
|
|
if err := yaml.Unmarshal(bb, &cfg); err != nil {
|
|
return nil, fmt.Errorf("context-config yaml load failed: %w\n%s", err, string(bb))
|
|
}
|
|
|
|
return &cfg, nil
|
|
}
|