mirror of
https://github.com/etcd-io/bbolt.git
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00ee0da528
This commit changes Open() to provide an additional Options argument. The options argument currently only has a Timeout which will cause the Open() to return ErrTimeout if a file lock cannot be obtained in time. Fixes #207.
46 lines
710 B
Go
46 lines
710 B
Go
package main
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import (
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"os"
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"github.com/boltdb/bolt"
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)
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// Get retrieves the value for a given bucket/key.
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func Get(path, name, key string) {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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fatal(err)
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return
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}
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db, err := bolt.Open(path, 0600, nil)
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if err != nil {
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fatal(err)
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return
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}
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defer db.Close()
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err = db.View(func(tx *bolt.Tx) error {
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// Find bucket.
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b := tx.Bucket([]byte(name))
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if b == nil {
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fatalf("bucket not found: %s", name)
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return nil
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}
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// Find value for a given key.
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value := b.Get([]byte(key))
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if value == nil {
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fatalf("key not found: %s", key)
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return nil
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}
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println(string(value))
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return nil
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})
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if err != nil {
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fatal(err)
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return
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}
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}
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