/
target_loader.go
98 lines (82 loc) · 2.33 KB
/
target_loader.go
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package pla
import (
"errors"
"fmt"
"github.com/smallfish/simpleyaml"
"io/ioutil"
"strings"
)
func LoadTargets(filename string) ([]Target, error) {
data, error := ioutil.ReadFile(filename)
if error != nil {
panic(error)
}
yaml, error := simpleyaml.NewYaml(data)
if error != nil {
panic(error)
}
m, err := yaml.Map()
if err != nil {
panic(err)
}
var targets []Target
for key, value := range m {
value := value.([]interface{})
commands := make([]Runnable, len(value))
targetName := simplifyTargetName(key.(string))
targetParams, targetParamErr := findParametersInTargetName(key.(string))
if targetParamErr != nil {
panic(targetParamErr)
}
for i := range value {
commandString := value[i].(string)
if commandString[0] == "="[0] {
panic("Subtargets not implemented yet!")
}
commands[i] = Command{commandString}
// commands[i] = Command{value[i].(string)}
}
targets = append(targets, Target{targetName, commands, targetParams})
}
// for targetIndex := range targets {
// for commandIndex := range targets[targetIndex].Commands {
// currentCommand := targets[targetIndex].Commands[commandIndex].(string)
// if currentCommand[0] != "="[0] {
// continue
// }
// subTargetName := currentCommand[1:]
// subTarget, err := FindTargetByTargetName(subTargetName, targets)
// if err != nil {
// fmt.Printf("Error: Using non-existent target \"%v\" as subtarget.\n", subTargetName)
// fmt.Println("Valid targets are:")
// for tIndex := range targets {
// fmt.Println(" -", targets[tIndex].Name)
// }
// return nil, err
// }
// targets[targetIndex].Commands[commandIndex] = subTarget
// }
// }
return targets, nil
}
func findParametersInTargetName(rawName string) ([]string, error) {
paramStartIndex := strings.Index(rawName, "[")
paramEndIndex := strings.Index(rawName, "]")
if paramStartIndex == -1 {
return make([]string, 0), nil
}
if paramEndIndex == -1 {
return nil, errors.New(fmt.Sprintf("Incorrect syntax for target %v", rawName))
}
return strings.Split(rawName[paramStartIndex+1:paramEndIndex], ","), nil
}
func simplifyTargetName(rawName string) string {
if rawName[0] == "="[0] {
rawName = rawName[1:]
}
paramStartIndex := strings.Index(rawName, "[")
if paramStartIndex == -1 {
return rawName
}
return rawName[:paramStartIndex]
}