50 lines
1.0 KiB
Go
50 lines
1.0 KiB
Go
package colorschemes
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"path/filepath"
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)
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var registry map[string]Colorscheme
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func init() {
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if registry == nil {
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registry = make(map[string]Colorscheme)
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}
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}
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func FromName(confDir string, c string) (Colorscheme, error) {
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cs, ok := registry[c]
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if !ok {
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cs, err := getCustomColorscheme(confDir, c)
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if err != nil {
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return cs, err
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}
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}
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return cs, nil
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}
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func register(name string, c Colorscheme) {
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if registry == nil {
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registry = make(map[string]Colorscheme)
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}
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registry[name] = c
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}
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// getCustomColorscheme tries to read a custom json colorscheme from <configDir>/<name>.json
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func getCustomColorscheme(confDir string, name string) (Colorscheme, error) {
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var cs Colorscheme
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filePath := filepath.Join(confDir, name+".json")
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dat, err := ioutil.ReadFile(filePath)
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if err != nil {
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return cs, fmt.Errorf("failed to read colorscheme file: %v", err)
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}
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err = json.Unmarshal(dat, &cs)
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if err != nil {
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return cs, fmt.Errorf("failed to parse colorscheme file: %v", err)
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}
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return cs, nil
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}
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