vulndb/cmd/modinfo/main.go

96 строки
2.3 KiB
Go

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Command modinfo displays module info from the pkgsite database.
//
// One-time setup: install the cloud sql proxy:
//
// > curl -o cloud-sql-proxy https://storage.googleapis.com/cloud-sql-connectors/cloud-sql-proxy/v2.6.0/cloud-sql-proxy.linux.amd64
// > chmod +x cloud-sql-proxy
// > ./cloud-sql-proxy $MODINFO_DB?port=5429 &
//
// cloud-sql-proxy must be running in the background to run this command.
// If it stops, restart it by running the last command above.
//
// You will also need to do
//
// > gcloud auth application-default login
//
// if you haven't already.
package main
import (
"context"
"fmt"
"log"
"os"
"sort"
"strings"
"text/tabwriter"
"golang.org/x/exp/maps"
"golang.org/x/vulndb/cmd/modinfo/internal/pkgsitedb"
)
func main() {
args := os.Args[1:]
if len(args) == 0 {
log.Fatal("missing module paths")
}
var cfg pkgsitedb.Config
cfg.User = mustEnv("MODINFO_USER")
cfg.Password = mustEnv("MODINFO_PASSWORD")
cfg.Host = "127.0.0.1"
cfg.Port = "5429"
cfg.DBName = mustEnv("MODINFO_DBNAME")
ctx := context.Background()
db, err := pkgsitedb.Open(ctx, cfg)
if err != nil {
fmt.Fprintf(os.Stderr, `Could not open DB. You may need to run
cloud-sql-proxy $MODINFO_DB?port=5429 &
Details: %v`, err)
fmt.Fprintln(os.Stderr)
os.Exit(1)
}
defer db.Close()
for _, modpath := range args {
mod, err := pkgsitedb.QueryModule(ctx, db, modpath)
if err != nil {
log.Fatal(err)
}
display(mod)
}
}
func mustEnv(ev string) string {
if r := os.Getenv(ev); r != "" {
return r
}
fmt.Fprintf(os.Stderr, "need value for environment variable %s\n", ev)
os.Exit(1)
return ""
}
func display(m *pkgsitedb.Module) {
if len(m.Packages) == 0 {
fmt.Printf("No packages for module %s; maybe it doesn't exist?\n", m.Path)
return
}
versionMap := map[string]bool{}
for _, p := range m.Packages {
versionMap[p.Version] = true
}
versions := maps.Keys(versionMap)
sort.Strings(versions)
fmt.Printf("==== %s @ %s ====\n", m.Path, strings.Join(versions, ", "))
tw := tabwriter.NewWriter(os.Stdout, 2, 4, 1, ' ', 0)
fmt.Fprintf(tw, "%s\t%s\n", "Import Path", "Importers")
for _, p := range m.Packages {
fmt.Fprintf(tw, "%s\t%5d\n", p.Path, p.NumImporters)
}
tw.Flush()
}