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package gomplate
import (
"io"
"os"
"text/template"
"time"
"github.com/hairyhenderson/gomplate/data"
)
// Config - values necessary for rendering templates with gomplate.
// Mainly for use by the CLI
type Config struct {
Input string
InputFiles []string
InputDir string
ExcludeGlob []string
OutputFiles []string
OutputDir string
DataSources []string
DataSourceHeaders []string
LDelim string
RDelim string
}
// gomplate -
type gomplate struct {
funcMap template.FuncMap
leftDelim string
rightDelim string
}
// runTemplate -
func (g *gomplate) runTemplate(t *tplate) error {
context := &context{}
tmpl, err := t.toGoTemplate(g)
if err != nil {
return err
}
switch t.target.(type) {
case io.Closer:
if t.target != os.Stdout {
// nolint: errcheck
defer t.target.(io.Closer).Close()
}
}
err = tmpl.Execute(t.target, context)
return err
}
// newGomplate -
func newGomplate(d *data.Data, leftDelim, rightDelim string) *gomplate {
return &gomplate{
leftDelim: leftDelim,
rightDelim: rightDelim,
funcMap: initFuncs(d),
}
}
// RunTemplates - run all gomplate templates specified by the given configuration
func RunTemplates(o *Config) error {
Metrics = newMetrics()
defer runCleanupHooks()
d, err := data.NewData(o.DataSources, o.DataSourceHeaders)
if err != nil {
return err
}
addCleanupHook(d.Cleanup)
g := newGomplate(d, o.LDelim, o.RDelim)
return g.runTemplates(o)
}
func (g *gomplate) runTemplates(o *Config) error {
start := time.Now()
tmpl, err := gatherTemplates(o)
Metrics.GatherDuration = time.Since(start)
if err != nil {
Metrics.Errors++
return err
}
Metrics.TemplatesGathered = len(tmpl)
start = time.Now()
defer func() { Metrics.TotalRenderDuration = time.Since(start) }()
for _, t := range tmpl {
tstart := time.Now()
err := g.runTemplate(t)
Metrics.RenderDuration[t.name] = time.Since(tstart)
if err != nil {
Metrics.Errors++
return err
}
Metrics.TemplatesProcessed++
}
return nil
}
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