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package config
import (
"errors"
"os"
"go.wit.com/log"
"google.golang.org/protobuf/proto"
)
// loads foo.proto from ~/.cache/<appname>/foo.pb
func LoadAppnameCache(pb proto.Message, appname string) error {
protoname, err := GetProtobufName(pb) // defined in the foo.proto file
if err != nil {
return err
}
// Get ~/.cache/appname/protoname.text
fullname := makeCacheFilename(appname, protoname)
// get the current filename in the protobuf file
curfilename, err := GetFilename(pb)
if err != nil {
return err
}
if curfilename == "" {
// log.Printf("ConfigLoad() read in %s\n", fullname)
}
if !Exists(fullname) {
SetFilename(pb, fullname)
return os.ErrNotExist
}
err = loadPB(pb, fullname)
if err != nil {
return ErrMarshal
}
// If the cache file is new or has moved, this updates it to correct filename
// (the filename is what is used by pb.Save()
if curfilename != fullname {
_, err := SetFilename(pb, fullname)
if err != nil {
log.Info("FILENAME COULD NOT BE SET old=", curfilename)
log.Info("FILENAME COULD NOT BE SET new=", fullname)
return errors.Join(err, errors.New("something is wrong in lib/config"))
}
}
return nil
}
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