Use golangci-lint fmt to format code (#178)

Use `golangci-lint fmt` to format code, replacing the previous gofumpt-based formatter. https://github.com/daixiang0/gci is used to order the imports.

Mirrors https://github.com/go-gitea/gitea/pull/37194.

---
This PR was written with the help of Claude Opus 4.7

Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/178
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-committed-by: silverwind <me@silverwind.io>

.golangci.yml

@@ -102,9 +102,16 @@ issues:
   max-same-issues: 0
 formatters:
   enable:
-    - gofmt
+    - gci
     - gofumpt
   settings:
+    gci:
+      custom-order: true
+      sections:
+        - standard
+        - prefix(gitea.com/gitea/gitea-mcp)
+        - blank
+        - default
     gofumpt:
       extra-rules: true
   exclusions:

Makefile

@@ -3,9 +3,8 @@ EXECUTABLE := gitea-mcp
 VERSION ?= $(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')
 LDFLAGS := -X "main.Version=$(VERSION)"
 
-GOLANGCI_LINT_PACKAGE ?= github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.10.1
+GOLANGCI_LINT_PACKAGE ?= github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.11.4
 GOVULNCHECK_PACKAGE ?= golang.org/x/vuln/cmd/govulncheck@v1
-GOFUMPT_PACKAGE ?= mvdan.cc/gofumpt@v0.9.2
 
 .PHONY: help
 help: ## print this help message
@@ -51,7 +50,16 @@ dev: air ## run the application with hot reload
 
 .PHONY: fmt
 fmt: ## format the Go code
-	$(GO) run $(GOFUMPT_PACKAGE) -w .
+	$(GO) run $(GOLANGCI_LINT_PACKAGE) fmt
+
+.PHONY: fmt-check
+fmt-check: fmt ## check that Go code is formatted
+	@diff=$$(git diff --color=always); \
+	if [ -n "$$diff" ]; then \
+		echo "Please run 'make fmt' and commit the result:"; \
+		printf "%s" "$${diff}"; \
+		exit 1; \
+	fi
 
 .PHONY: lint
 lint: lint-go ## lint everything

operation/issue/issue_test.go

@@ -11,6 +11,7 @@ import (
 	"testing"
 
 	"gitea.com/gitea/gitea-mcp/pkg/flag"
+
 	"github.com/mark3labs/mcp-go/mcp"
 )
 

operation/pull/pull_test.go

@@ -10,6 +10,7 @@ import (
 	"testing"
 
 	"gitea.com/gitea/gitea-mcp/pkg/flag"
+
 	"github.com/mark3labs/mcp-go/mcp"
 )
 

operation/timetracking/timetracking.go

@@ -5,13 +5,13 @@ import (
 	"context"
 	"fmt"
 
-	gitea_sdk "code.gitea.io/sdk/gitea"
 	"gitea.com/gitea/gitea-mcp/pkg/gitea"
 	"gitea.com/gitea/gitea-mcp/pkg/log"
 	"gitea.com/gitea/gitea-mcp/pkg/params"
 	"gitea.com/gitea/gitea-mcp/pkg/to"
 	"gitea.com/gitea/gitea-mcp/pkg/tool"
 
+	gitea_sdk "code.gitea.io/sdk/gitea"
 	"github.com/mark3labs/mcp-go/mcp"
 	"github.com/mark3labs/mcp-go/server"
 )

pkg/gitea/gitea.go

@@ -7,9 +7,10 @@ import (
 	"fmt"
 	"net/http"
 
-	"code.gitea.io/sdk/gitea"
 	mcpContext "gitea.com/gitea/gitea-mcp/pkg/context"
 	"gitea.com/gitea/gitea-mcp/pkg/flag"
+
+	"code.gitea.io/sdk/gitea"
 )
 
 func NewClient(token string) (*gitea.Client, error) {

pkg/log/log.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"gitea.com/gitea/gitea-mcp/pkg/flag"
+
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 	"gopkg.in/natefinch/lumberjack.v2"

pkg/to/to.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 
 	"gitea.com/gitea/gitea-mcp/pkg/log"
+
 	"github.com/mark3labs/mcp-go/mcp"
 )
 

pkg/tool/tool.go

@@ -2,6 +2,7 @@ package tool
 
 import (
 	"gitea.com/gitea/gitea-mcp/pkg/flag"
+
 	"github.com/mark3labs/mcp-go/server"
 )