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93 lines
2.0 KiB
93 lines
2.0 KiB
package files
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import (
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"io/ioutil"
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"os"
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"github.com/pkg/errors"
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"github.com/tendermint/tendermint/lite"
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liteErr "github.com/tendermint/tendermint/lite/errors"
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)
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const (
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// MaxFullCommitSize is the maximum number of bytes we will
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// read in for a full commit to avoid excessive allocations
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// in the deserializer
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MaxFullCommitSize = 1024 * 1024
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)
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// SaveFullCommit exports the seed in binary / go-amino style
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func SaveFullCommit(fc lite.FullCommit, path string) error {
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f, err := os.Create(path)
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if err != nil {
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return errors.WithStack(err)
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}
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defer f.Close()
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_, err = cdc.MarshalBinaryWriter(f, fc)
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if err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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// SaveFullCommitJSON exports the seed in a json format
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func SaveFullCommitJSON(fc lite.FullCommit, path string) error {
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f, err := os.Create(path)
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if err != nil {
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return errors.WithStack(err)
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}
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defer f.Close()
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bz, err := cdc.MarshalJSON(fc)
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if err != nil {
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return errors.WithStack(err)
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}
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_, err = f.Write(bz)
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if err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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// LoadFullCommit loads the full commit from the file system.
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func LoadFullCommit(path string) (lite.FullCommit, error) {
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var fc lite.FullCommit
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f, err := os.Open(path)
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if err != nil {
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if os.IsNotExist(err) {
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return fc, liteErr.ErrCommitNotFound()
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}
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return fc, errors.WithStack(err)
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}
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defer f.Close()
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_, err = cdc.UnmarshalBinaryReader(f, &fc, 0)
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if err != nil {
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return fc, errors.WithStack(err)
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}
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return fc, nil
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}
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// LoadFullCommitJSON loads the commit from the file system in JSON format.
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func LoadFullCommitJSON(path string) (lite.FullCommit, error) {
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var fc lite.FullCommit
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f, err := os.Open(path)
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if err != nil {
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if os.IsNotExist(err) {
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return fc, liteErr.ErrCommitNotFound()
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}
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return fc, errors.WithStack(err)
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}
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defer f.Close()
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bz, err := ioutil.ReadAll(f)
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if err != nil {
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return fc, errors.WithStack(err)
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}
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err = cdc.UnmarshalJSON(bz, &fc)
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if err != nil {
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return fc, errors.WithStack(err)
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}
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return fc, nil
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}
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