go-toml
Go library for the TOML format.
This library supports TOML version
v0.5.0
Features
Go-toml provides the following features for using data parsed from TOML documents:
- Load TOML documents from files and string data
- Easily navigate TOML structure using Tree
- Mashaling and unmarshaling to and from data structures
- Line & column position data for all parsed elements
- Query support similar to JSON-Path
- Syntax errors contain line and column numbers
Import
import "github.com/pelletier/go-toml"
Usage example
Read a TOML document:
config, _ := toml.Load(`
[postgres]
user = "pelletier"
password = "mypassword"`)
// retrieve data directly
user := config.Get("postgres.user").(string)
// or using an intermediate object
postgresConfig := config.Get("postgres").(*toml.Tree)
password := postgresConfig.Get("password").(string)
Or use Unmarshal:
type Postgres struct {
User string
Password string
}
type Config struct {
Postgres Postgres
}
doc := []byte(`
[Postgres]
User = "pelletier"
Password = "mypassword"`)
config := Config{}
toml.Unmarshal(doc, &config)
fmt.Println("user=", config.Postgres.User)
Or use a query:
// use a query to gather elements without walking the tree
q, _ := query.Compile("$..[user,password]")
results := q.Execute(config)
for ii, item := range results.Values() {
fmt.Println("Query result %d: %v", ii, item)
}
Documentation
The documentation and additional examples are available at
godoc.org.
Tools
Go-toml provides two handy command line tools:
-
tomll: Reads TOML files and lint them.go install github.com/pelletier/go-toml/cmd/tomll tomll --help -
tomljson: Reads a TOML file and outputs its JSON representation.go install github.com/pelletier/go-toml/cmd/tomljson tomljson --help -
jsontoml: Reads a JSON file and outputs a TOML representation.go install github.com/pelletier/go-toml/cmd/jsontoml jsontoml --help
Docker image
Those tools are also availble as a Docker image from
dockerhub. For example, to
use tomljson:
docker run -v $PWD:/workdir pelletier/go-toml tomljson /workdir/example.toml
Only master (latest) and tagged versions are published to dockerhub. You
can build your own image as usual:
docker build -t go-toml .
Contribute
Feel free to report bugs and patches using GitHub's pull requests system on
pelletier/go-toml. Any feedback would be
much appreciated!
Run tests
go test ./...
Fuzzing
The script ./fuzz.sh is available to
run go-fuzz on go-toml.
Versioning
Go-toml follows Semantic Versioning. The supported version
of TOML is indicated at the beginning of
this document. The last two major versions of Go are supported
(see Go Release Policy).
License
The MIT License (MIT). Read LICENSE.