all: upgrade to Go 1.26rc2 and modernize codebase

This commit upgrades the codebase from Go 1.25.5 to Go 1.26rc2 and
adopts new language features.

Toolchain updates:
- go.mod: go 1.25.5 → go 1.26rc2
- flake.nix: buildGo125Module → buildGo126Module, go_1_25 → go_1_26
- flake.nix: build golangci-lint from source with Go 1.26
- Dockerfile.integration: golang:1.25-trixie → golang:1.26rc2-trixie
- Dockerfile.tailscale-HEAD: golang:1.25-alpine → golang:1.26rc2-alpine
- Dockerfile.derper: golang:alpine → golang:1.26rc2-alpine
- .goreleaser.yml: go mod tidy -compat=1.25 → -compat=1.26
- cmd/hi/run.go: fallback Go version 1.25 → 1.26rc2
- .pre-commit-config.yaml: simplify golangci-lint hook entry

Code modernization using Go 1.26 features:
- Replace tsaddr.SortPrefixes with slices.SortFunc + netip.Prefix.Compare
- Replace ptr.To(x) with new(x) syntax
- Replace errors.As with errors.AsType[T]

Lint rule updates:
- Add forbidigo rules to prevent regression to old patterns
This commit is contained in:
Kristoffer Dalby 2026-02-06 21:39:35 +00:00
parent 20dff82f95
commit 0f6d312ada
50 changed files with 508 additions and 521 deletions

View file

@ -17,7 +17,6 @@ import (
"gorm.io/gorm"
"tailscale.com/net/tsaddr"
"tailscale.com/tailcfg"
"tailscale.com/types/ptr"
"tailscale.com/util/must"
)
@ -145,13 +144,13 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0:ab12:4843:2222:6273:2221"),
User: ptr.To(users[0]),
User: new(users[0]),
},
peers: types.Nodes{
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0:ab12:4843:2222:6273:2222"),
User: ptr.To(users[0]),
User: new(users[0]),
},
},
want: []tailcfg.FilterRule{},
@ -192,7 +191,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: []netip.Prefix{
netip.MustParsePrefix("10.33.0.0/16"),
@ -203,7 +202,7 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -274,19 +273,19 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
peers: types.Nodes{
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[2]),
User: new(users[2]),
},
// "internal" exit node
&types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: tsaddr.ExitRoutes(),
},
@ -335,7 +334,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: tsaddr.ExitRoutes(),
},
@ -344,12 +343,12 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[2]),
User: new(users[2]),
},
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -442,7 +441,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: tsaddr.ExitRoutes(),
},
@ -451,12 +450,12 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[2]),
User: new(users[2]),
},
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -549,7 +548,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: []netip.Prefix{netip.MustParsePrefix("8.0.0.0/16"), netip.MustParsePrefix("16.0.0.0/16")},
},
@ -558,12 +557,12 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[2]),
User: new(users[2]),
},
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -634,7 +633,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: []netip.Prefix{netip.MustParsePrefix("8.0.0.0/8"), netip.MustParsePrefix("16.0.0.0/8")},
},
@ -643,12 +642,12 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[2]),
User: new(users[2]),
},
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -711,7 +710,7 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.100"),
IPv6: ap("fd7a:115c:a1e0::100"),
User: ptr.To(users[3]),
User: new(users[3]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: []netip.Prefix{netip.MustParsePrefix("172.16.0.0/24")},
},
@ -721,7 +720,7 @@ func TestReduceFilterRules(t *testing.T) {
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
},
},
want: []tailcfg.FilterRule{
@ -778,13 +777,13 @@ func TestReduceFilterRules(t *testing.T) {
node: &types.Node{
IPv4: ap("100.64.0.2"),
IPv6: ap("fd7a:115c:a1e0::2"),
User: ptr.To(users[3]),
User: new(users[3]),
},
peers: types.Nodes{
&types.Node{
IPv4: ap("100.64.0.1"),
IPv6: ap("fd7a:115c:a1e0::1"),
User: ptr.To(users[1]),
User: new(users[1]),
Hostinfo: &tailcfg.Hostinfo{
RoutableIPs: []netip.Prefix{p("172.16.0.0/24"), p("10.10.11.0/24"), p("10.10.12.0/24")},
},