// Rewrite rewrites files to the local path.
func (ctx *Context) rewrite() error {
if !ctx.rewriteImports {
return nil
}
if ctx.dirty {
ctx.loadPackage()
}
ctx.dirty = true
fileImports := make(map[string]map[string]*File) // map[ImportPath]map[FilePath]File
for _, pkg := range ctx.Package {
for _, f := range pkg.Files {
for _, imp := range f.Imports {
fileList := fileImports[imp]
if fileList == nil {
fileList = make(map[string]*File, 1)
fileImports[imp] = fileList
}
fileList[f.Path] = f
}
}
}
filePaths := make(map[string]*File, len(ctx.RewriteRule))
for from, to := range ctx.RewriteRule {
// Add files that contain an import path to rewrite.
for _, f := range fileImports[from] {
filePaths[f.Path] = f
}
// Add files that contain import comments to remove.
if pkg := ctx.Package[from]; pkg != nil {
for _, f := range pkg.Files {
if len(f.ImportComment) != 0 {
filePaths[f.Path] = f
}
}
}
if pkg := ctx.Package[to]; pkg != nil {
for _, f := range pkg.Files {
if len(f.ImportComment) != 0 {
filePaths[f.Path] = f
}
}
}
}
/*
RULE: co2/internal/co3/pk3 -> co1/internal/co3/pk3
i co1/internal/co2/pk2 [co2/pk2] < ["co1/pk1"]
i co1/internal/co3/pk3 [co3/pk3] < ["co1/pk1"]
e co2/internal/co3/pk3 [co3/pk3] < ["co1/internal/co2/pk2"]
l co1/pk1 < []
s strings < ["co1/internal/co3/pk3" "co2/internal/co3/pk3"]
Rewrite the package "co1/internal/co2/pk2" because it references a package with a rewrite.from package.
*/
ctx.updatePackageReferences()
for from := range ctx.RewriteRule {
pkg := ctx.Package[from]
if pkg == nil {
continue
}
for _, ref := range pkg.referenced {
for _, f := range ref.Files {
dprintf("REF RW %s\n", f.Path)
filePaths[f.Path] = f
}
}
}
defer func() {
ctx.RewriteRule = make(map[string]string, 3)
}()
if len(ctx.RewriteRule) == 0 {
return nil
}
goprint := &printer.Config{
Mode: printer.TabIndent | printer.UseSpaces,
Tabwidth: 8,
}
for _, fileInfo := range filePaths {
if pathos.FileHasPrefix(fileInfo.Path, ctx.RootDir) == false {
continue
}
// Read the file into AST, modify the AST.
fileset := token.NewFileSet()
f, err := parser.ParseFile(fileset, fileInfo.Path, nil, parser.ParseComments)
if err != nil {
return err
}
dprintf("RW:: File: %s\n", fileInfo.Path)
for _, impNode := range f.Imports {
imp, err := strconv.Unquote(impNode.Path.Value)
if err != nil {
return err
}
for from, to := range ctx.RewriteRule {
if imp != from {
continue
}
impNode.Path.Value = strconv.Quote(to)
for i, metaImport := range fileInfo.Imports {
if from == metaImport {
dprintf("\tImport: %s -> %s\n", from, to)
fileInfo.Imports[i] = to
}
}
break
}
}
// Remove import comment.
st := fileInfo.Package.Status
if fileInfo.Package.inVendor || st == StatusUnused || st == StatusExternal {
var ic *ast.Comment
if f.Name != nil {
pos := f.Name.Pos()
big:
// Find the next comment after the package name.
for _, cblock := range f.Comments {
for _, c := range cblock.List {
if c.Pos() > pos {
ic = c
break big
}
}
}
}
if ic != nil {
// If it starts with the import text, assume it is the import comment and remove.
if index := strings.Index(ic.Text, " import "); index > 0 && index < 5 {
ic.Text = strings.Repeat(" ", len(ic.Text))
}
}
}
// Don't sort or modify the imports to minimize diffs.
// Write the AST back to disk.
fi, err := os.Stat(fileInfo.Path)
if err != nil {
return err
}
w, err := safefile.Create(fileInfo.Path, fi.Mode())
if err != nil {
return err
}
err = goprint.Fprint(w, fileset, f)
if err != nil {
w.Close()
return err
}
err = w.Commit()
if err != nil {
return err
}
}
return nil
}
func main() {
flag.Parse()
defer func() {
if err := recover(); err != nil {
panic(err)
}
}()
if *boxName == "" {
log.Fatal("boxName parameter required")
}
db := GetDatabase()
// Query deleted datasets
deletedQuery := bson.M{
"$and": []bson.M{
bson.M{"state": "deleted"},
bson.M{"boxServer": *boxName}}}
// Query all deleted dataset box names along with the view box names
q := db.C("datasets").Find(deletedQuery).Select(bson.M{})
q = q.Select(bson.M{"box": 1, "views.box": 1, "views.boxServer": 1})
var datasets []Dataset
err := q.All(&datasets)
check(err)
// Build map of deleted boxes, looking through all dataset.Views
badBoxes := map[string]struct{}{}
for _, dataset := range datasets {
badBoxes[dataset.Box] = struct{}{}
for _, view := range dataset.Views {
badBoxes[view.Box] = struct{}{}
}
}
q = db.C("boxes").Find(bson.M{"server": *boxName})
q = q.Select(bson.M{"name": 1, "uid": 1})
var boxes []Box
err = q.All(&boxes)
check(err)
goodBoxes := []Box{}
for _, box := range boxes {
if _, deleted := badBoxes[box.Name]; deleted {
continue
}
goodBoxes = append(goodBoxes, box)
}
passwd, err := safefile.Create("passwd", 0666)
check(err)
defer passwd.Close()
for _, box := range boxes {
fmt.Fprintf(passwd, "%v:x:%v:10000::/home:/bin/bash\n", box.Name, box.Uid)
}
shadow, err := safefile.Create("shadow", 0666)
check(err)
defer shadow.Close()
for _, box := range boxes {
fmt.Fprintf(shadow, "%v:x:15607:0:99999:7:::\n", box.Name)
}
err = passwd.Commit()
check(err)
err = shadow.Commit()
check(err)
log.Printf("Generated len(%v) passwd file (%v deleted)", len(goodBoxes), len(boxes)-len(goodBoxes))
}