homemaker/task.go

124 lines
2.9 KiB
Go

/*
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package main
import (
"fmt"
"log"
)
type task struct {
Deps []string
Links [][]string
Cmds [][]string
Envs [][]string
Accepts [][]string
Rejects [][]string
}
func (t *task) deps(conf *config) []string {
deps := t.Deps
if conf.flags&flagNoCmds == 0 {
for _, currCmd := range t.Cmds {
deps = append(deps, findCmdDeps(currCmd, conf)...)
}
}
return deps
}
func (t *task) process(conf *config) error {
for _, currTask := range t.deps(conf) {
if err := processTask(currTask, conf); err != nil {
return err
}
}
for _, currEnv := range t.Envs {
if err := processEnv(currEnv, conf); err != nil {
return err
}
}
if conf.flags&flagNoCmds == 0 {
for _, currCmd := range t.Cmds {
if err := processCmd(currCmd, true, conf); err != nil {
return err
}
}
}
if conf.flags&flagNoLinks == 0 {
for _, currLink := range t.Links {
if err := processLink(currLink, conf); err != nil {
return err
}
}
}
return nil
}
func (t *task) skippable(conf *config) bool {
for _, currCnd := range t.Accepts {
if err := processCmd(currCnd, false, conf); err != nil {
return true
}
}
for _, currCnd := range t.Rejects {
if err := processCmd(currCnd, false, conf); err == nil {
return true
}
}
return false
}
func processTask(taskName string, conf *config) error {
for _, tn := range makeVariantNames(taskName, conf.variant) {
t, ok := conf.Tasks[tn]
if !ok {
continue
}
if conf.handled[tn] || t.skippable(conf) {
if conf.flags&flagVerbose != 0 {
log.Printf("skipping task: %s", tn)
}
return nil
}
if conf.flags&flagVerbose != 0 {
log.Printf("processing task: %s", tn)
}
conf.handled[tn] = true
return t.process(conf)
}
return fmt.Errorf("task or variant not found: %s", taskName)
}