cmd/modinfo/internal/pkgsitedb: fix build on plan9

Package pkgsitedb doesn't work on plan9 because a dependency doesn't
support it. It was meant to return a runtime error in the db_plan9.go
implementation, but it looks like there was a mixup with a similar
pkgsitedb package at golang.org/x/pkgsite-metrics/internal/pkgsitedb.

After these changes, it and all of its tests compile on GOOS=plan9:

$ GOOS=plan9 GOARCH=amd64 go test -c -o=/dev/null ./...
[...]
$ echo $?
0

Also run 'go mod tidy' to drop the x/pkgsite-metric requirement.

For golang/go#61698.

Change-Id: Ia016b5705894029380840ce8499047e264054e9f
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/518095
Reviewed-by: Dmitri Shuralyov <[email protected]>
Run-TryBot: Dmitri Shuralyov <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Auto-Submit: Dmitri Shuralyov <[email protected]>
Reviewed-by: Jonathan Amsterdam <[email protected]>

Author: dmitshur

cmd/modinfo/internal/pkgsitedb/db_plan9.go

@@ -10,17 +10,34 @@ import (
 	"context"
 	"database/sql"
 	"errors"
-
-	"golang.org/x/pkgsite-metrics/internal/config"
-	"golang.org/x/pkgsite-metrics/internal/scan"
 )
 
 var errDoesNotCompile = errors.New("github.com/lib/pq does not compile on plan9")
 
-func Open(ctx context.Context, cfg *config.Config) (_ *sql.DB, err error) {
+type Config struct {
+	User           string
+	PasswordSecret string
+	Password       string
+	Host           string
+	Port           string
+	DBName         string
+}
+
+func Open(ctx context.Context, cfg Config) (_ *sql.DB, err error) {
 	return nil, errDoesNotCompile
 }
 
-func ModuleSpecs(ctx context.Context, db *sql.DB, minImportedByCount int) (specs []scan.ModuleSpec, err error) {
+type Module struct {
+	Path     string
+	Packages []*Package
+}
+
+type Package struct {
+	Path         string
+	Version      string
+	NumImporters int
+}
+
+func QueryModule(ctx context.Context, db *sql.DB, modulePath string) (*Module, error) {
 	return nil, errDoesNotCompile
 }

go.mod

@@ -27,7 +27,6 @@ require (
 	golang.org/x/exp/event v0.0.0-20220218215828-6cf2b201936e
 	golang.org/x/mod v0.10.0
 	golang.org/x/oauth2 v0.8.0
-	golang.org/x/pkgsite-metrics v0.0.0-20230724182206-f4d26a684cbf
 	golang.org/x/sync v0.2.0
 	golang.org/x/time v0.1.0
 	golang.org/x/tools v0.9.3

go.sum

@@ -473,8 +473,6 @@ golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.8.0 h1:6dkIjl3j3LtZ/O3sTgZTMsLKSftL/B8Zgq4huOIIUu8=
 golang.org/x/oauth2 v0.8.0/go.mod h1:yr7u4HXZRm1R1kBWqr/xKNqewf0plRYoB7sla+BCIXE=
-golang.org/x/pkgsite-metrics v0.0.0-20230724182206-f4d26a684cbf h1:EZsyqK8LLPSx01Tr2yXk66Vcp/1yDCw3x58dbi1xTqA=
-golang.org/x/pkgsite-metrics v0.0.0-20230724182206-f4d26a684cbf/go.mod h1:0Jrcyk3p5rHS8+NbicrlGT3w+0hmXv2mBLXqkv6ySXs=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=