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main.go
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main.go
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/*
Copyright 2021 The Vitess Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"encoding/json"
"log"
"os"
"path"
"path/filepath"
"sort"
"github.com/spf13/pflag"
"vitess.io/vitess/go/mysql/collations/charset"
"vitess.io/vitess/go/mysql/collations/internal/uca"
"vitess.io/vitess/go/mysql/collations/tools/makecolldata/codegen"
)
type TailoringWeights map[string][]uint16
type AllMetadata []*CollationMetadata
type CollationMetadata struct {
Name string
Charset string
Flags struct {
Binary bool
ASCII bool
Default bool
}
CollationImpl string
Number uint
CType []byte
ToLower []byte
ToUpper []byte
SortOrder []byte
TabToUni []uint16
TabFromUni []charset.UnicodeMapping
UCAVersion int
Weights TailoringWeights
Contractions []uca.Contraction
Reorder [][4]uint16
UpperCaseFirst bool
}
var Mysqldata = pflag.String("mysqldata", "testdata/mysqldata", "")
var Embed = pflag.Bool("embed", false, "")
func loadMysqlMetadata() (all AllMetadata) {
mysqdata, err := filepath.Glob(path.Join(*Mysqldata, "*.json"))
if err != nil {
log.Fatal(err)
}
if len(mysqdata) == 0 {
log.Fatalf("no files under %q (did you run colldump locally?)", *Mysqldata)
}
for _, path := range mysqdata {
rf, err := os.Open(path)
if err != nil {
log.Fatal(err)
}
var meta CollationMetadata
if err := json.NewDecoder(rf).Decode(&meta); err != nil {
log.Fatal(err)
}
_ = rf.Close()
if _, aliased := CharsetAliases[meta.Charset]; aliased {
meta.Charset = CharsetAliases[meta.Charset]
}
all = append(all, &meta)
}
sort.Slice(all, func(i, j int) bool {
return all[i].Number < all[j].Number
})
return
}
func (all AllMetadata) get(name string) *CollationMetadata {
for _, meta := range all {
if meta.Name == name {
return meta
}
}
log.Fatalf("missing collation: %s", name)
return nil
}
const PkgCollations codegen.Package = "vitess.io/vitess/go/mysql/collations"
const PkgCharset codegen.Package = "vitess.io/vitess/go/mysql/collations/charset"
func main() {
pflag.Parse()
metadata := loadMysqlMetadata()
maketables(*Embed, ".", metadata)
makeversions(".")
makemysqldata(".", metadata)
}