/
data_funcs.go
70 lines (57 loc) · 1.31 KB
/
data_funcs.go
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package config
import (
"github.com/rancher/os/pkg/log"
"github.com/rancher/os/pkg/util"
)
type CfgFunc func(*CloudConfig) (*CloudConfig, error)
type CfgFuncData struct {
Name string
Func CfgFunc
}
type CfgFuncs []CfgFuncData
func ChainCfgFuncs(cfg *CloudConfig, cfgFuncs CfgFuncs) (*CloudConfig, error) {
len := len(cfgFuncs)
for c, d := range cfgFuncs {
i := c + 1
name := d.Name
cfgFunc := d.Func
if cfg == nil {
log.Infof("[%d/%d] Starting %s WITH NIL cfg", i, len, name)
} else {
log.Infof("[%d/%d] Starting %s", i, len, name)
}
var err error
if cfg, err = cfgFunc(cfg); err != nil {
log.Errorf("Failed [%d/%d] %s: %v", i, len, name, err)
return cfg, err
}
log.Debugf("[%d/%d] Done %s", i, len, name)
}
return cfg, nil
}
func filterKey(data map[interface{}]interface{}, key []string) (filtered, rest map[interface{}]interface{}) {
if len(key) == 0 {
return data, map[interface{}]interface{}{}
}
filtered = map[interface{}]interface{}{}
rest = util.MapCopy(data)
k := key[0]
if d, ok := data[k]; ok {
switch d := d.(type) {
case map[interface{}]interface{}:
f, r := filterKey(d, key[1:])
if len(f) != 0 {
filtered[k] = f
}
if len(r) != 0 {
rest[k] = r
} else {
delete(rest, k)
}
default:
filtered[k] = d
delete(rest, k)
}
}
return
}