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aliases.go
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/
aliases.go
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package generator
import (
"bytes"
"io"
"io/ioutil"
"strings"
"gopkg.in/yaml.v2"
)
// Aliases reads from fileToParse and builds source file from tmplPath. It complies with type File signature.
func Aliases(fileToParse, samplesDir, outPath, tmplPath, tmplName, commit string) error {
data, err := ioutil.ReadFile(fileToParse)
if err != nil {
return err
}
languages := make(map[string]*languageInfo)
if err := yaml.Unmarshal(data, &languages); err != nil {
return err
}
orderedLangList := getAlphabeticalOrderedKeys(languages)
languageByAlias := buildAliasLanguageMap(languages, orderedLangList)
buf := &bytes.Buffer{}
if err := executeAliasesTemplate(buf, languageByAlias, tmplPath, tmplName, commit); err != nil {
return err
}
return formatedWrite(outPath, buf.Bytes())
}
func buildAliasLanguageMap(languages map[string]*languageInfo, orderedLangList []string) map[string]string {
aliasLangsMap := make(map[string]string)
for _, lang := range orderedLangList {
langInfo := languages[lang]
key := convertToAliasKey(lang)
aliasLangsMap[key] = lang
for _, alias := range langInfo.Aliases {
key := convertToAliasKey(alias)
aliasLangsMap[key] = lang
}
}
return aliasLangsMap
}
func convertToAliasKey(s string) (key string) {
key = strings.Replace(s, ` `, `_`, -1)
key = strings.ToLower(key)
return
}
func executeAliasesTemplate(out io.Writer, languageByAlias map[string]string, aliasesTmplPath, aliasesTmpl, commit string) error {
return executeTemplate(out, aliasesTmpl, aliasesTmplPath, commit, nil, languageByAlias)
}