make: add task to lint Go code

The lint run "go vet" and internal "gocheck".

4 files changed, 36 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index f1c98f5..b378bd3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,14 @@
 # SPDX-License-Identifier: CC-BY-SA-4.0
 # SPDX-FileCopyrightText: 2019 M. Shulhan <ms@kilabit.info>
+
+.PHONY: all
+all: lint build
+
+.PHONY: lint
+lint:
+	go vet ./...
+	go run ./internal/cmd/gocheck ./...
+
 .PHONY: build
 build: embed
 	go build -o _bin/ ./cmd/www-kilabit/
diff --git a/go.mod b/go.mod
index b2ce2c6..b238e70 100644
--- a/go.mod
+++ b/go.mod
@@ -16,8 +16,11 @@ require (
 	github.com/yuin/goldmark v1.7.13 // indirect
 	github.com/yuin/goldmark-meta v1.1.0 // indirect
 	golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 // indirect
+	golang.org/x/mod v0.31.0 // indirect
 	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/tools v0.40.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
diff --git a/go.sum b/go.sum
index f8f5475..4fafdb0 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,8 @@
 git.sr.ht/~shulhan/asciidoctor-go v0.7.3-0.20260124143117-f289b7f13a1d h1:rdDzlVPJjgR6Jz84VNEAbdvNypMPtH3O6uEbVYb/7Rk=
 git.sr.ht/~shulhan/asciidoctor-go v0.7.3-0.20260124143117-f289b7f13a1d/go.mod h1:cY9Ae1vu3OniC7z29twH1/PMJa7ZSSUqbK9QQM4/bhc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -13,10 +15,16 @@ github.com/yuin/goldmark-meta v1.1.0 h1:pWw+JLHGZe8Rk0EGsMVssiNb/AaPMHfSRszZeUei
 github.com/yuin/goldmark-meta v1.1.0/go.mod h1:U4spWENafuA7Zyg+Lj5RqK/MF+ovMYtBvXi1lBb2VP0=
 golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 h1:fQsdNF2N+/YewlRZiricy4P1iimyPKZ/xwniHj8Q2a0=
 golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93/go.mod h1:EPRbTFwzwjXj9NpYyyrvenVh9Y+GFeEvMNh7Xuz7xgU=
+golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
+golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
 golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
 golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
 golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
+golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
diff --git a/internal/cmd/gocheck/main.go b/internal/cmd/gocheck/main.go
new file mode 100644
index 0000000..1d08414
--- /dev/null
+++ b/internal/cmd/gocheck/main.go
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: BSD-3-Clause
+// SPDX-FileCopyrightText: 2026 M. Shulhan <ms@kilabit.info>
+
+// Program gocheck implement go static analysis using [Analyzer] that are not
+// included in the default go vet.
+// See package [lib/goanalysis] for more information.
+//
+// [Analyzer]: https://pkg.go.dev/golang.org/x/tools/go/analysis#hdr-Analyzer
+// [lib/goanalysis]: https://pkg.go.dev/git.sr.ht/~shulhan/pakakeh.go/lib/goanalysis/
+package main
+
+import "git.sr.ht/~shulhan/pakakeh.go/lib/goanalysis"
+
+func main() {
+	goanalysis.Check()
+}