/
delete.go
104 lines (89 loc) · 2 KB
/
delete.go
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package main
import (
"context"
"net/http"
"time"
badger "github.com/dgraph-io/badger/v2"
rpc "github.com/underlay/pkgs/rpc"
types "github.com/underlay/pkgs/types"
)
// Delete a resource
func (server *Server) Delete(ctx context.Context, res http.ResponseWriter, req *http.Request) {
key := types.ParsePath(req.URL.Path)
txn := server.db.NewTransaction(true)
defer txn.Discard()
r, err := getResource(key, txn)
if err == badger.ErrKeyNotFound {
res.WriteHeader(404)
return
} else if err != nil {
res.WriteHeader(500)
res.Write([]byte(err.Error()))
return
}
if pkg, is := r.(*types.Package); is {
err = server.deleteChildren(key, pkg, txn)
if err != nil {
return
}
}
rpc.Delete(key, r, server.api)
err = txn.Delete(getKey(key))
if err != nil {
res.WriteHeader(500)
res.Write([]byte(err.Error()))
return
}
timestamp := time.Now().Format(time.RFC3339)
err = server.commit(ctx, timestamp, key, nil, txn)
if err != nil {
res.WriteHeader(500)
res.Write([]byte(err.Error()))
return
}
err = txn.Commit()
if err != nil {
res.WriteHeader(500)
res.Write([]byte(err.Error()))
return
}
res.WriteHeader(204)
}
func (server *Server) deleteChildren(
key []string, pkg *types.Package,
txn *badger.Txn,
) error {
for _, p := range pkg.Members.Packages {
childKey := append(key, p.Name())
childPkg, err := getPackage(childKey, txn)
if err != nil {
return err
}
err = server.deleteChildren(childKey, childPkg, txn)
if err != nil {
return err
}
rpc.Delete(childKey, childPkg, server.api)
err = txn.Delete(getKey(childKey))
if err != nil {
return err
}
}
for _, a := range pkg.Members.Assertions {
childKey := append(key, a.Name())
rpc.Delete(childKey, a, server.api)
err := txn.Delete(getKey(childKey))
if err != nil {
return err
}
}
for _, f := range pkg.Members.Files {
childKey := append(key, f.Name())
rpc.Delete(childKey, f, server.api)
err := txn.Delete(getKey(childKey))
if err != nil {
return err
}
}
return nil
}