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package main
import (
"io"
"log"
"net/url"
"strings"
"text/template"
"github.com/hairyhenderson/gomplate/aws"
)
func (g *Gomplate) createTemplate() *template.Template {
return template.New("template").Funcs(g.funcMap).Option("missingkey=error")
}
// Gomplate -
type Gomplate struct {
funcMap template.FuncMap
leftDelim string
rightDelim string
}
// RunTemplate -
func (g *Gomplate) RunTemplate(text string, out io.Writer) {
context := &Context{}
tmpl, err := g.createTemplate().Delims(g.leftDelim, g.rightDelim).Parse(text)
if err != nil {
log.Fatalf("Line %q: %v\n", text, err)
}
if err := tmpl.Execute(out, context); err != nil {
panic(err)
}
}
// NewGomplate -
func NewGomplate(data *Data, leftDelim, rightDelim string) *Gomplate {
env := &Env{}
typeconv := &TypeConv{}
stringfunc := &stringFunc{}
ec2meta := aws.NewEc2Meta()
ec2info := aws.NewEc2Info()
return &Gomplate{
leftDelim: leftDelim,
rightDelim: rightDelim,
funcMap: template.FuncMap{
"getenv": env.Getenv,
"bool": typeconv.Bool,
"has": typeconv.Has,
"json": typeconv.JSON,
"jsonArray": typeconv.JSONArray,
"yaml": typeconv.YAML,
"yamlArray": typeconv.YAMLArray,
"csv": typeconv.CSV,
"csvByRow": typeconv.CSVByRow,
"csvByColumn": typeconv.CSVByColumn,
"slice": typeconv.Slice,
"indent": typeconv.indent,
"join": typeconv.Join,
"toJSON": typeconv.ToJSON,
"toJSONPretty": typeconv.toJSONPretty,
"toYAML": typeconv.ToYAML,
"toCSV": typeconv.ToCSV,
"ec2meta": ec2meta.Meta,
"ec2dynamic": ec2meta.Dynamic,
"ec2tag": ec2info.Tag,
"ec2region": ec2meta.Region,
"contains": strings.Contains,
"hasPrefix": strings.HasPrefix,
"hasSuffix": strings.HasSuffix,
"replaceAll": stringfunc.replaceAll,
"split": strings.Split,
"splitN": strings.SplitN,
"title": strings.Title,
"toUpper": strings.ToUpper,
"toLower": strings.ToLower,
"trim": strings.Trim,
"trimSpace": strings.TrimSpace,
"urlParse": url.Parse,
"datasource": data.Datasource,
"ds": data.Datasource,
"datasourceExists": data.DatasourceExists,
"include": data.include,
},
}
}
func runTemplate(o *GomplateOpts) error {
defer runCleanupHooks()
data := NewData(o.dataSources, o.dataSourceHeaders)
g := NewGomplate(data, o.lDelim, o.rDelim)
if o.inputDir != "" {
return processInputDir(o.inputDir, o.outputDir, g)
}
return processInputFiles(o.input, o.inputFiles, o.outputFiles, g)
}
// Called from process.go ...
func renderTemplate(g *Gomplate, inString string, outPath string) error {
outFile, err := openOutFile(outPath)
if err != nil {
return err
}
// nolint: errcheck
defer outFile.Close()
g.RunTemplate(inString, outFile)
return nil
}
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