/
fs.go
100 lines (86 loc) · 1.64 KB
/
fs.go
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package main
import (
"bytes"
"io"
"io/ioutil"
"log"
"os"
"path/filepath"
"sigint.ca/graphics/editor/address"
"sigint.ca/text/column"
)
func (p *pane) load(data []byte) {
p.main.ed.Load(data)
p.main.ed.SetDot(address.Selection{})
p.main.ed.SetSaved()
}
func (p *pane) loadFile(path string) error {
f, err := os.Open(path)
if os.IsNotExist(err) {
return nil
} else if err != nil {
return err
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
return err
}
var contents []byte
if fi.IsDir() {
p.dir = true
names, err := f.Readdirnames(0)
if err != nil {
return err
}
var buf bytes.Buffer
colwriter := column.NewWriter(&buf, 100)
for _, n := range names {
colwriter.Write([]byte(n + "\n"))
}
colwriter.Flush()
contents = buf.Bytes()
p.cwd = path
} else {
contents, err = ioutil.ReadAll(f)
if err != nil {
return err
}
}
p.cwd = getAbs(p.cwd)
p.load(contents)
p.currentPath = path
p.savedPath = path
return nil
}
func getAbs(name string) string {
abs, err := filepath.Abs(name)
if err != nil {
dprintf("couldn't get absolute path for %q: %v", name, err)
}
if abs != "/" {
abs += "/"
}
return abs
}
func (p *pane) save() {
if p.main.ed.Saved() && p.currentPath == p.savedPath {
return
}
if p.currentPath == "" {
return
}
f, err := os.Create(p.currentPath)
if err != nil {
log.Printf("error opening %q for writing: %v", p.currentPath, err)
return
}
defer f.Close()
r := bytes.NewBuffer(p.main.ed.Contents())
if _, err := io.Copy(f, r); err != nil {
log.Printf("error writing to %q: %v", p.currentPath, err)
return
}
p.main.ed.SetSaved()
p.savedPath = p.currentPath
}