HGKeeper

* Convey

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

package tasks

import (

"os"

"strings"

)

// ParseFilePath will split a string on the first : and return two pieces.

// If there is no colon, then either "." (the current working directory)

// will be returned as the destination if the source was an item in the

// root of the workspace; otherwise, the source will be returned as the

// destination. If base is specified it will be stripped from the destination.

func ParseFilePath(base, file string) (string, string) {

parts := strings.SplitN(file, ":", 2)

if len(parts) != 1 {

return parts[0], trimBase(base, parts[1])

}

return parts[0], trimBase(base, DestFromSrc(parts[0]))

}

func trimBase(base, path string) string {

if base == "" {

return path

}

if !strings.HasSuffix(base, string(os.PathSeparator)) {

base += string(os.PathSeparator)

}

return strings.TrimPrefix(path, base)

}

// DestFromSrc returns "." if the given filename does not reference a

// file or directory outside of the current working directory and the

// input otherwise.

func DestFromSrc(file string) string {

clean := strings.TrimRight(file, string(os.PathSeparator))

if !strings.ContainsRune(clean, os.PathSeparator) {

return "."

}

return file

}