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loader.go
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loader.go
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package loader
import (
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"github.com/hydrati/plugin-loader/archive"
"github.com/hydrati/plugin-loader/discovery"
"github.com/hydrati/plugin-loader/env"
"github.com/hydrati/plugin-loader/execute"
"github.com/hydrati/plugin-loader/underline"
v "github.com/hydrati/plugin-loader/utils/container"
"github.com/sirupsen/logrus"
)
var (
ErrModeUnimplemented = errors.New("error: mode unimplemented")
)
var (
scriptBackupFolderName = "plugin_script_backup"
defaultPTask = v.Some(4)
)
type ErrorArray []error
func (a ErrorArray) Error() string {
logrus.Debugf("error array %t", a)
return fmt.Sprintf("errors: %#v", a)
}
func NewPackageLoader(path string, filename underline.Filename, system *discovery.System) *PackageLoader {
profile := system.Profile.Value()
logrus.Debugf("create package loader path = %v, filename = %v, system = %#v", path, filename, system)
return &PackageLoader{path, filename, system, profile}
}
func LoadPackage(path string, filename underline.Filename, system *discovery.System) v.Future[v.Result[v.Unit, error]] {
return NewPackageLoader(path, filename, system).Load()
}
func LoadSystem(system *discovery.System) v.Result[v.Unit, error] {
profile := system.Profile.Value()
logrus.Debugf("load system profile %#v", system)
logrus.Debugf("use profile %#v", profile)
for k := range profile.Packages {
logrus.Debugf("load package %s", k)
loader := NewPackageLoader(k, system.Profile.Value().Packages[k], system)
fmt.Println(loader)
ret := loader.Load().Await()
logrus.Debugf("loaded package %s, %+v", k, ret)
if ret.Errored() {
return ret
}
}
return v.Ok[v.Unit, error](v.UnitVal)
}
type PackageLoader struct {
path string
filename underline.Filename
system *discovery.System
profile *discovery.Profile
}
func (loader *PackageLoader) LoadNormal() v.Result[v.Unit, error] {
logrus.Debugf("[%s] load normal", loader.path)
logrus.Debugf("[%s] preload clean", loader.path)
a := loader.preloadClean()
logrus.Debugf("[%s] preload clean done, %#v", loader.path, a)
if a.Errored() {
return v.ToErr[v.Unit](a)
}
logrus.Debugf("[%s] extract files normal", loader.path)
b := loader.extractNormal()
logrus.Debugf("[%s] extract file normal done, %#v", loader.path, b)
if b.Errored() {
return v.ToErr[v.Unit](b)
}
logrus.Debugf("[%s] execute scripts", loader.path)
c := loader.executeScripts()
logrus.Debugf("[%s] execute scripts done, %#v", loader.path, c)
if c.Errored() {
return v.ToErr[v.Unit](c)
}
logrus.Debugf("[%s] post clean", loader.path)
d := loader.postClean(c.Value().Lookup)
logrus.Debugf("[%s] post clean done, %#v", loader.path, d)
if d.Errored() {
return v.ToErr[v.Unit](d)
}
logrus.Debugf("[%s] load normal done", loader.path)
return v.Ok[v.Unit, error](v.UnitVal)
}
func (loader *PackageLoader) extractNormal() v.Result[v.Unit, error] {
logrus.Debugf("[%s] open archive", loader.path)
file := archive.OpenArchive(loader.path, v.None[string]())
logrus.Debugf("[%s] open archive done, %#v", loader.path, file)
if file.Errored() {
return v.ToErr[v.Unit](file)
}
logrus.Debugf("[%s] new extractor", loader.path)
extractor := archive.NewExtractor(file.Value().All(), loader.system.Dir)
logrus.Debugf("[%s] extract +p[%v]", loader.path, defaultPTask)
res := extractor.Execute(defaultPTask).Await()
logrus.Debugf("[%s] extract done, %#v", loader.path, res)
if res.Has() {
return v.Err[v.Unit](error(ErrorArray(res.Value())))
}
return v.Ok[v.Unit, error](v.UnitVal)
}
func (loader *PackageLoader) preloadClean() v.Result[v.Unit, error] {
logrus.Debugf("[%s] preload clean", loader.path)
logrus.Debugf("[%s] lookup scripts", loader.path)
scripts := execute.Lookup(loader.system.Dir)
logrus.Debugf("[%s] preload will clean scripts, %#v", loader.path, scripts)
if scripts.Errored() {
return v.ToErr[v.Unit](scripts)
}
for _, file := range scripts.Value() {
logrus.Debugf("[%s] preload clean, remove file, %s", loader.path, file)
os.Remove(file)
}
return v.Ok[v.Unit, error](v.UnitVal)
}
type ScriptResults struct {
Lookup execute.LookupResult
Output map[string]execute.ExecuteOutput
Errors map[string]*exec.ExitError
}
func (loader *PackageLoader) executeScripts() v.Result[ScriptResults, error] {
logrus.Debugf("[%s] execute scripts", loader.path)
scripts := execute.Lookup(loader.system.Dir)
logrus.Debugf("[%s] execute scripts lookup, %#v", loader.path, scripts)
if scripts.Errored() {
return v.ToErr[ScriptResults](scripts)
}
outputs := make(map[string]execute.ExecuteOutput)
errs := make(map[string]*exec.ExitError)
for _, file := range scripts.Value() {
script := env.PathJoin(loader.system.Dir, file)
logrus.Debugf("[%s] executing %s", loader.path, script)
res := execute.Execute(script).Await()
logrus.Debugf("[%s] executed %s, %#v", loader.path, script, res)
if res.Errored() {
errs[file] = res.Error().Value()
} else {
outputs[file] = res.Value()
}
}
ret := v.Ok[ScriptResults, error](
ScriptResults{Lookup: scripts.Value(), Output: outputs, Errors: errs},
)
logrus.Debugf("[%s] execute scripts done, %#v", loader.path, ret)
return ret
}
func (loader *PackageLoader) postClean(scripts execute.LookupResult) v.Result[v.Unit, error] {
logrus.Debugf("[%s] post clean", loader.path)
target := env.PathJoin(
loader.system.Dir,
scriptBackupFolderName,
loader.filename.ToUnderline().String3(),
)
logrus.Debugf("[%s] post clean move target = %s", loader.path, target)
err := os.MkdirAll(target, 0777)
logrus.Debugf("[%s] post clean create target, %#v", loader.path, err)
if err != nil {
return v.Err[v.Unit](err)
}
for _, file := range scripts {
logrus.Debugf("[%s] post clean, move %s", loader.path, file)
err := os.Rename(file, env.PathJoin(target, filepath.Base(file)))
logrus.Debugf("[%s] post clean, moved, %#v", loader.path, err)
if err != nil {
return v.Err[v.Unit](err)
}
}
logrus.Debugf("[%s] post clean done", loader.path)
return v.Ok[v.Unit, error](v.UnitVal)
}
func (loader *PackageLoader) Load() v.Future[v.Result[v.Unit, error]] {
return v.Async(func() v.Result[v.Unit, error] {
fmt.Println("Flags", loader.filename.Extname().Full(), loader.filename.Extname())
// Normal
if loader.filename.Extname().Full() == ".7z" {
logrus.Debugf("[%s] load (normal mode), filename = %+v", loader.path, loader.filename)
return loader.LoadNormal()
}
// Localboost, Unimplemented
if loader.filename.Extname().Flags().Has('l') {
logrus.Debugf("[%s] load (localboost), filename = %+v", loader.path, loader.filename)
logrus.Errorf("[%s] load (localboost) unimplemented", loader.path)
return v.Err[v.Unit](ErrModeUnimplemented)
}
// Disabled, Skip
if loader.filename.Extname().Flags().Has('f') {
logrus.Debugf("[%s] disabled, filename = %+v", loader.path, loader.filename)
return v.Ok[v.Unit, error](v.UnitVal)
}
// Others, Skip
logrus.Debugf("[%s] skipped, filename = %+v", loader.path, loader.filename)
return v.Ok[v.Unit, error](v.UnitVal)
})
}