joao/internal/render/render.go

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// Copyright © 2022 Roberto Hidalgo <joao@un.rob.mx>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package render
import (
"bytes"
"os"
_c "git.rob.mx/nidito/joao/internal/constants"
"git.rob.mx/nidito/joao/internal/runtime"
"github.com/charmbracelet/glamour"
"github.com/sirupsen/logrus"
"golang.org/x/term"
)
func addBackticks(str []byte) []byte {
return bytes.ReplaceAll(str, []byte("﹅"), []byte("`"))
}
func Markdown(content []byte, withColor bool) ([]byte, error) {
content = addBackticks(content)
if runtime.UnstyledHelpEnabled() {
return content, nil
}
width, _, err := term.GetSize(0)
if err != nil {
logrus.Debugf("Could not get terminal width")
width = 80
}
var styleFunc glamour.TermRendererOption
if withColor {
style := os.Getenv(_c.EnvVarHelpStyle)
switch style {
case "dark":
styleFunc = glamour.WithStandardStyle("dark")
case "light":
styleFunc = glamour.WithStandardStyle("light")
default:
styleFunc = glamour.WithStandardStyle("auto")
}
} else {
styleFunc = glamour.WithStandardStyle("notty")
}
renderer, err := glamour.NewTermRenderer(
styleFunc,
glamour.WithEmoji(),
glamour.WithWordWrap(width),
)
if err != nil {
return content, err
}
return renderer.RenderBytes(content)
}