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 environment

import (

"strings"

)

func splitEqual(value string) (string, string) {

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

if len(parts) == 1 {

return parts[0], ""

}

return parts[0], parts[1]

}

// Merge combines two environments and returns the result.

func Merge(orig, update []string) []string {

env := map[string]string{}

for _, val := range orig {

k, v := splitEqual(val)

env[k] = v

}

for _, val := range update {

k, v := splitEqual(val)

env[k] = v

}

ret := []string{}

for k, v := range env {

val := k

if v != "" {

val += "=" + v

}

ret = append(ret, val)

}

return ret

}