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|
package main
import (
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
)
func md_to_html(input_path string, output_path string) error {
var cmd *exec.Cmd
var err error
/* open source markdown */
var in *os.File
in, err = os.Open(input_path)
if err != nil {
return err
}
defer in.Close()
/* create output html */
var out *os.File
out, err = os.Create(output_path)
if err != nil {
return err
}
defer out.Close()
/*
run:
lowdown -Thtml
stdin <- markdown file
stdout -> html file
*/
cmd = exec.Command("lowdown", "-Thtml")
cmd.Stdin = in
cmd.Stdout = out
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
return err
}
return nil
}
func copy_file(src string, dst string) error {
var err error
var in *os.File
in, err = os.Open(src)
if err != nil {
return err
}
defer in.Close()
var out *os.File
out, err = os.Create(dst)
if err != nil {
return err
}
defer out.Close()
_, err = io.Copy(out, in)
if err != nil {
return err
}
return nil
}
func main() {
var err error
if len(os.Args) != 3 {
fmt.Fprintf(os.Stderr, "usage: kew <in> <out>\n")
os.Exit(1)
}
var src string = os.Args[1]
var out string = os.Args[2]
fmt.Printf("kew: %s -> %s\n", src, out)
err = filepath.WalkDir(src, func(path string, entry os.DirEntry, err error) error {
if err != nil {
return err
}
/* find relative path */
var rel string
rel, err = filepath.Rel(src, path)
if err != nil {
return err
}
var outpath string = filepath.Join(out, rel)
/* mirror src */
if entry.IsDir() {
return os.MkdirAll(outpath, 0755)
}
/* convert markdown else copy */
if strings.HasSuffix(path, ".md") {
outpath = strings.TrimSuffix(outpath, ".md") + ".html"
return md_to_html(path, outpath)
}
return copy_file(path, outpath)
})
if err != nil {
fmt.Fprintln(os.Stderr, "kew:", err)
os.Exit(1)
}
fmt.Println("kew: done")
}
|
