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package main
import (
"encoding/json"
"flag"
"fmt"
"log"
"net/http"
"os"
"regexp"
"strings"
)
const (
golangBinariesURL = "https://api.ftp-master.debian.org/binary/by_metadata/Go-Import-Path"
)
func getGolangBinaries() (map[string]string, error) {
golangBinaries := make(map[string]string)
resp, err := http.Get(golangBinariesURL)
if err != nil {
return nil, fmt.Errorf("getting %q: %v", golangBinariesURL, err)
}
if got, want := resp.StatusCode, http.StatusOK; got != want {
return nil, fmt.Errorf("unexpected HTTP status code: got %d, want %d", got, want)
}
var pkgs []struct {
Binary string `json:"binary"`
XSGoImportPath string `json:"metadata_value"`
Source string `json:"source"`
}
if err := json.NewDecoder(resp.Body).Decode(&pkgs); err != nil {
return nil, err
}
for _, pkg := range pkgs {
if !strings.HasSuffix(pkg.Binary, "-dev") {
continue // skip -dbgsym packages etc.
}
for _, importPath := range strings.Split(pkg.XSGoImportPath, ",") {
// XS-Go-Import-Path can be comma-separated and contain spaces.
golangBinaries[strings.TrimSpace(importPath)] = pkg.Binary
}
}
return golangBinaries, nil
}
func execSearch(args []string) {
fs := flag.NewFlagSet("search", flag.ExitOnError)
fs.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s search <pattern>\n", os.Args[0])
fmt.Fprintf(os.Stderr, "Uses Go's default regexp syntax (https://golang.org/pkg/regexp/syntax/)\n")
fmt.Fprintf(os.Stderr, "Example: %s search 'debi.*'\n", os.Args[0])
}
err := fs.Parse(args)
if err != nil {
log.Fatal(err)
}
if fs.NArg() != 1 {
fs.Usage()
os.Exit(1)
}
pattern, err := regexp.Compile(fs.Arg(0))
if err != nil {
log.Fatal(err)
}
golangBinaries, err := getGolangBinaries()
if err != nil {
log.Fatal(err)
}
for importPath, binary := range golangBinaries {
if pattern.MatchString(importPath) {
fmt.Printf("%s: %s\n", binary, importPath)
}
}
}
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