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68 lines
1.3 KiB
68 lines
1.3 KiB
package chart
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import (
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"errors"
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"io/ioutil"
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"strings"
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"github.com/BurntSushi/toml"
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)
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var ErrNoTable = errors.New("no table")
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type Values map[string]interface{}
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// Table gets a table (TOML subsection) from a Values object.
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//
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// The table is returned as a Values.
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//
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// Compound table names may be specified with dots:
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//
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// foo.bar
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//
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// The above will be evaluated as "The table bar inside the table
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// foo".
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//
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// An ErrNoTable is returned if the table does not exist.
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func (v Values) Table(name string) (Values, error) {
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names := strings.Split(name, ".")
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table := v
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var err error
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for _, n := range names {
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table, err = tableLookup(table, n)
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if err != nil {
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return table, err
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}
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}
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return table, err
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}
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func tableLookup(v Values, simple string) (Values, error) {
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v2, ok := v[simple]
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if !ok {
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return v, ErrNoTable
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}
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vv, ok := v2.(map[string]interface{})
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if !ok {
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return vv, ErrNoTable
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}
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return vv, nil
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}
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// ReadValues will parse TOML byte data into a Values.
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func ReadValues(data []byte) (Values, error) {
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out := map[string]interface{}{}
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err := toml.Unmarshal(data, out)
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return out, err
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}
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// ReadValuesFile will parse a TOML file into a Values.
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func ReadValuesFile(filename string) (Values, error) {
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data, err := ioutil.ReadFile(filename)
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if err != nil {
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return map[string]interface{}{}, err
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}
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return ReadValues(data)
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}
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