mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 17:57:51 +00:00
a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
115 lines
2.9 KiB
Go
115 lines
2.9 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ignore
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package main
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import (
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"bytes"
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"flag"
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"fmt"
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"io"
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"log"
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"reflect"
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"strings"
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"unicode"
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"golang.org/x/text/collate"
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"golang.org/x/text/internal/gen"
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"golang.org/x/text/internal/ucd"
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"golang.org/x/text/language"
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"golang.org/x/text/unicode/rangetable"
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)
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var versionList = flag.String("versions", "",
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"list of versions for which to generate RangeTables")
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const bootstrapMessage = `No versions specified.
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To bootstrap the code generation, run:
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go run gen.go --versions=4.1.0,5.0.0,6.0.0,6.1.0,6.2.0,6.3.0,7.0.0
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and ensure that the latest versions are included by checking:
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http://www.unicode.org/Public/`
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func getVersions() []string {
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if *versionList == "" {
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log.Fatal(bootstrapMessage)
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}
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c := collate.New(language.Und, collate.Numeric)
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versions := strings.Split(*versionList, ",")
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c.SortStrings(versions)
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// Ensure that at least the current version is included.
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for _, v := range versions {
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if v == gen.UnicodeVersion() {
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return versions
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}
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}
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versions = append(versions, gen.UnicodeVersion())
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c.SortStrings(versions)
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return versions
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}
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func main() {
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gen.Init()
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versions := getVersions()
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w := &bytes.Buffer{}
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fmt.Fprintf(w, "//go:generate go run gen.go --versions=%s\n\n", strings.Join(versions, ","))
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fmt.Fprintf(w, "import \"unicode\"\n\n")
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vstr := func(s string) string { return strings.Replace(s, ".", "_", -1) }
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fmt.Fprintf(w, "var assigned = map[string]*unicode.RangeTable{\n")
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for _, v := range versions {
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fmt.Fprintf(w, "\t%q: assigned%s,\n", v, vstr(v))
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}
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fmt.Fprintf(w, "}\n\n")
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var size int
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for _, v := range versions {
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assigned := []rune{}
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r := gen.Open("http://www.unicode.org/Public/", "", v+"/ucd/UnicodeData.txt")
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ucd.Parse(r, func(p *ucd.Parser) {
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assigned = append(assigned, p.Rune(0))
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})
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rt := rangetable.New(assigned...)
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sz := int(reflect.TypeOf(unicode.RangeTable{}).Size())
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sz += int(reflect.TypeOf(unicode.Range16{}).Size()) * len(rt.R16)
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sz += int(reflect.TypeOf(unicode.Range32{}).Size()) * len(rt.R32)
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fmt.Fprintf(w, "// size %d bytes (%d KiB)\n", sz, sz/1024)
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fmt.Fprintf(w, "var assigned%s = ", vstr(v))
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print(w, rt)
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size += sz
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}
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fmt.Fprintf(w, "// Total size %d bytes (%d KiB)\n", size, size/1024)
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gen.WriteVersionedGoFile("tables.go", "rangetable", w.Bytes())
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}
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func print(w io.Writer, rt *unicode.RangeTable) {
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fmt.Fprintln(w, "&unicode.RangeTable{")
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fmt.Fprintln(w, "\tR16: []unicode.Range16{")
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for _, r := range rt.R16 {
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fmt.Fprintf(w, "\t\t{%#04x, %#04x, %d},\n", r.Lo, r.Hi, r.Stride)
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}
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fmt.Fprintln(w, "\t},")
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fmt.Fprintln(w, "\tR32: []unicode.Range32{")
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for _, r := range rt.R32 {
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fmt.Fprintf(w, "\t\t{%#08x, %#08x, %d},\n", r.Lo, r.Hi, r.Stride)
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}
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fmt.Fprintln(w, "\t},")
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fmt.Fprintf(w, "\tLatinOffset: %d,\n", rt.LatinOffset)
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fmt.Fprintf(w, "}\n\n")
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}
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