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mirror of https://gitea.com/gitea/tea.git synced 2024-12-04 14:46:40 -05:00
tea/modules/print/markdown.go
Norwin 222d0501df Detect markdown line width, resolve relative URLs (#332)
~~this is semi-blocked by https://github.com/charmbracelet/glamour/pull/96, but behaviour isn't really worse than the previous behaviour (most links work, some are still broken)~~

#### testcase for link resolver
```
tea pr 332
tea checkout 332 && make install && tea pr 332
```

- [rel](./332)
- [abs](/gitea/tea/pulls/332)
- [full](https://gitea.com/gitea/tea/pulls/332)

Co-authored-by: Norwin Roosen <git@nroo.de>
Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/332
Reviewed-by: 6543 <6543@obermui.de>
Reviewed-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Norwin <noerw@noreply.gitea.io>
Co-committed-by: Norwin <noerw@noreply.gitea.io>
2021-03-12 20:28:46 +08:00

52 lines
1.1 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package print
import (
"fmt"
"os"
"github.com/charmbracelet/glamour"
"golang.org/x/crypto/ssh/terminal"
)
// outputMarkdown prints markdown to stdout, formatted for terminals.
// If the input could not be parsed, it is printed unformatted, the error
// is returned anyway.
func outputMarkdown(markdown string, baseURL string) error {
renderer, err := glamour.NewTermRenderer(
glamour.WithAutoStyle(),
glamour.WithBaseURL(baseURL),
glamour.WithWordWrap(getWordWrap()),
)
if err != nil {
fmt.Printf(markdown)
return err
}
out, err := renderer.Render(markdown)
if err != nil {
fmt.Printf(markdown)
return err
}
fmt.Print(out)
return nil
}
// stolen from https://github.com/charmbracelet/glow/blob/e9d728c/main.go#L152-L165
func getWordWrap() int {
fd := int(os.Stdout.Fd())
width := 80
if terminal.IsTerminal(fd) {
if w, _, err := terminal.GetSize(fd); err == nil {
width = w
}
}
if width > 120 {
width = 120
}
return width
}