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package cmd
import (
"bufio"
"context"
"fmt"
"net/url"
"strings"
"github.com/jzelinskie/cobrautil/v2"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
v1 "github.com/authzed/authzed-go/proto/authzed/api/v1"
"github.com/authzed/spicedb/pkg/tuple"
"github.com/authzed/spicedb/pkg/validationfile"
"github.com/authzed/zed/internal/client"
"github.com/authzed/zed/internal/commands"
"github.com/authzed/zed/internal/decode"
"github.com/authzed/zed/internal/grpcutil"
)
func registerImportCmd(rootCmd *cobra.Command) {
rootCmd.AddCommand(importCmd)
importCmd.Flags().Int("batch-size", 1000, "import batch size")
importCmd.Flags().Int("workers", 1, "number of concurrent batching workers")
importCmd.Flags().Bool("schema", true, "import schema")
importCmd.Flags().Bool("relationships", true, "import relationships")
importCmd.Flags().String("schema-definition-prefix", "", "prefix to add to the schema's definition(s) before importing")
}
var importCmd = &cobra.Command{
Use: "import <url>",
Short: "Imports schema and relationships from a file or url",
Example: `
From a gist:
zed import https://gist.github.com/ecordell/8e3b613a677e3c844742cf24421c08b6
From a playground link:
zed import https://play.authzed.com/s/iksdFvCtvnkR/schema
From pastebin:
zed import https://pastebin.com/8qU45rVK
From a devtools instance:
zed import https://localhost:8443/download
From a local file (with prefix):
zed import file:///Users/zed/Downloads/authzed-x7izWU8_2Gw3.yaml
From a local file (no prefix):
zed import authzed-x7izWU8_2Gw3.yaml
Only schema:
zed import --relationships=false file:///Users/zed/Downloads/authzed-x7izWU8_2Gw3.yaml
Only relationships:
zed import --schema=false file:///Users/zed/Downloads/authzed-x7izWU8_2Gw3.yaml
With schema definition prefix:
zed import --schema-definition-prefix=mypermsystem file:///Users/zed/Downloads/authzed-x7izWU8_2Gw3.yaml
`,
Args: commands.ValidationWrapper(cobra.ExactArgs(1)),
RunE: importCmdFunc,
}
func importCmdFunc(cmd *cobra.Command, args []string) error {
client, err := client.NewClient(cmd)
if err != nil {
return err
}
u, err := url.Parse(args[0])
if err != nil {
return err
}
decoder, err := decode.DecoderForURL(u)
if err != nil {
return err
}
var p validationfile.ValidationFile
if _, _, err := decoder(&p); err != nil {
return err
}
prefix, err := determinePrefixForSchema(cmd.Context(), cobrautil.MustGetString(cmd, "schema-definition-prefix"), client, nil)
if err != nil {
return err
}
if cobrautil.MustGetBool(cmd, "schema") {
if err := importSchema(cmd.Context(), client, p.Schema.Schema, prefix); err != nil {
return err
}
}
if cobrautil.MustGetBool(cmd, "relationships") {
batchSize := cobrautil.MustGetInt(cmd, "batch-size")
workers := cobrautil.MustGetInt(cmd, "workers")
if err := importRelationships(cmd.Context(), client, p.Relationships.RelationshipsString, prefix, batchSize, workers); err != nil {
return err
}
}
return err
}
func importSchema(ctx context.Context, client client.Client, schema string, definitionPrefix string) error {
log.Info().Msg("importing schema")
// Recompile the schema with the specified prefix.
schemaText, err := rewriteSchema(schema, definitionPrefix)
if err != nil {
return err
}
// Write the recompiled and regenerated schema.
request := &v1.WriteSchemaRequest{Schema: schemaText}
log.Trace().Interface("request", request).Str("schema", schemaText).Msg("writing schema")
if _, err := client.WriteSchema(ctx, request); err != nil {
return err
}
return nil
}
func importRelationships(ctx context.Context, client client.Client, relationships string, definitionPrefix string, batchSize int, workers int) error {
relationshipUpdates := make([]*v1.RelationshipUpdate, 0)
scanner := bufio.NewScanner(strings.NewReader(relationships))
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
if line == "" {
continue
}
if strings.HasPrefix(line, "//") {
continue
}
rel, err := tuple.ParseV1Rel(line)
if err != nil {
return fmt.Errorf("failed to parse %s as relationship", line)
}
log.Trace().Str("line", line).Send()
// Rewrite the prefix on the references, if any.
if len(definitionPrefix) > 0 {
rel.Resource.ObjectType = fmt.Sprintf("%s/%s", definitionPrefix, rel.Resource.ObjectType)
rel.Subject.Object.ObjectType = fmt.Sprintf("%s/%s", definitionPrefix, rel.Subject.Object.ObjectType)
}
relationshipUpdates = append(relationshipUpdates, &v1.RelationshipUpdate{
Operation: v1.RelationshipUpdate_OPERATION_TOUCH,
Relationship: rel,
})
}
if err := scanner.Err(); err != nil {
return err
}
log.Info().
Int("batch_size", batchSize).
Int("workers", workers).
Int("count", len(relationshipUpdates)).
Msg("importing relationships")
err := grpcutil.ConcurrentBatch(ctx, len(relationshipUpdates), batchSize, workers, func(ctx context.Context, no int, start int, end int) error {
request := &v1.WriteRelationshipsRequest{Updates: relationshipUpdates[start:end]}
_, err := client.WriteRelationships(ctx, request)
if err != nil {
return err
}
log.Info().
Int("batch_no", no).
Int("count", len(relationshipUpdates[start:end])).
Msg("imported relationships")
return nil
})
return err
}
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