split setting.go to multiple files (#6154)

* split setting.go to multiple files

* fix lint

modules/setting/git.go

@@ -0,0 +1,71 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package setting
+
+import (
+	"time"
+
+	"code.gitea.io/git"
+	"code.gitea.io/gitea/modules/log"
+	version "github.com/mcuadros/go-version"
+)
+
+var (
+	// Git settings
+	Git = struct {
+		Version                  string `ini:"-"`
+		DisableDiffHighlight     bool
+		MaxGitDiffLines          int
+		MaxGitDiffLineCharacters int
+		MaxGitDiffFiles          int
+		GCArgs                   []string `delim:" "`
+		Timeout                  struct {
+			Default int
+			Migrate int
+			Mirror  int
+			Clone   int
+			Pull    int
+			GC      int `ini:"GC"`
+		} `ini:"git.timeout"`
+	}{
+		DisableDiffHighlight:     false,
+		MaxGitDiffLines:          1000,
+		MaxGitDiffLineCharacters: 5000,
+		MaxGitDiffFiles:          100,
+		GCArgs:                   []string{},
+		Timeout: struct {
+			Default int
+			Migrate int
+			Mirror  int
+			Clone   int
+			Pull    int
+			GC      int `ini:"GC"`
+		}{
+			Default: int(git.DefaultCommandExecutionTimeout / time.Second),
+			Migrate: 600,
+			Mirror:  300,
+			Clone:   300,
+			Pull:    300,
+			GC:      60,
+		},
+	}
+)
+
+func newGit() {
+	if err := Cfg.Section("git").MapTo(&Git); err != nil {
+		log.Fatal(4, "Failed to map Git settings: %v", err)
+	}
+	git.DefaultCommandExecutionTimeout = time.Duration(Git.Timeout.Default) * time.Second
+
+	binVersion, err := git.BinVersion()
+	if err != nil {
+		log.Fatal(4, "Error retrieving git version: %v", err)
+	}
+
+	if version.Compare(binVersion, "2.9", ">=") {
+		// Explicitly disable credential helper, otherwise Git credentials might leak
+		git.GlobalCommandArgs = append(git.GlobalCommandArgs, "-c", "credential.helper=")
+	}
+}