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	For a long time Gitea has tested PR patches using a git apply --check method, and in fact prior to the introduction of a read-tree assisted three-way merge in #18004, this was the only way of checking patches. Since #18004, the git apply --check method has been a fallback method, only used when the read-tree three-way merge method has detected a conflict. The read-tree assisted three-way merge method is much faster and less resource intensive method of detecting conflicts. #18004 kept the git apply method around because it was thought possible that this fallback might be able to rectify conflicts that the read-tree three-way merge detected. I am not certain if this could ever be the case. Given the uncertainty here and the now relative stability of the read-tree method - this PR makes using this fallback optional and disables it by default. The hope is that users will not notice any significant difference in conflict detection and we will be able to remove the git apply fallback in future, and/or improve the read-tree three-way merge method to catch any conflicts that git apply method might have been able to fix. An additional benefit is that patch checking should be significantly less resource intensive and much quicker. (See https://github.com/go-gitea/gitea/issues/22083\#issuecomment-1347961737) Ref #22083 Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
		
			
				
	
	
		
			355 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			355 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2019 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package setting
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| 
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| import (
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| 	"os/exec"
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| 	"path"
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| 	"path/filepath"
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| 	"strings"
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| 
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| 	"code.gitea.io/gitea/modules/log"
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| )
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| 
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| // enumerates all the policy repository creating
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| const (
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| 	RepoCreatingLastUserVisibility = "last"
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| 	RepoCreatingPrivate            = "private"
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| 	RepoCreatingPublic             = "public"
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| )
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| 
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| // ItemsPerPage maximum items per page in forks, watchers and stars of a repo
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| const ItemsPerPage = 40
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| 
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| // Repository settings
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| var (
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| 	Repository = struct {
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| 		DetectedCharsetsOrder                   []string
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| 		DetectedCharsetScore                    map[string]int `ini:"-"`
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| 		AnsiCharset                             string
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| 		ForcePrivate                            bool
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| 		DefaultPrivate                          string
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| 		DefaultPushCreatePrivate                bool
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| 		MaxCreationLimit                        int
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| 		PreferredLicenses                       []string
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| 		DisableHTTPGit                          bool
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| 		AccessControlAllowOrigin                string
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| 		UseCompatSSHURI                         bool
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| 		DefaultCloseIssuesViaCommitsInAnyBranch bool
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| 		EnablePushCreateUser                    bool
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| 		EnablePushCreateOrg                     bool
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| 		DisabledRepoUnits                       []string
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| 		DefaultRepoUnits                        []string
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| 		PrefixArchiveFiles                      bool
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| 		DisableMigrations                       bool
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| 		DisableStars                            bool `ini:"DISABLE_STARS"`
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| 		DefaultBranch                           string
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| 		AllowAdoptionOfUnadoptedRepositories    bool
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| 		AllowDeleteOfUnadoptedRepositories      bool
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| 		DisableDownloadSourceArchives           bool
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| 
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| 		// Repository editor settings
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| 		Editor struct {
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| 			LineWrapExtensions   []string
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| 			PreviewableFileModes []string
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| 		} `ini:"-"`
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| 
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| 		// Repository upload settings
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| 		Upload struct {
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| 			Enabled      bool
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| 			TempPath     string
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| 			AllowedTypes string
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| 			FileMaxSize  int64
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| 			MaxFiles     int
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| 		} `ini:"-"`
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| 
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| 		// Repository local settings
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| 		Local struct {
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| 			LocalCopyPath string
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| 		} `ini:"-"`
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| 
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| 		// Pull request settings
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| 		PullRequest struct {
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| 			WorkInProgressPrefixes                   []string
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| 			CloseKeywords                            []string
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| 			ReopenKeywords                           []string
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| 			DefaultMergeStyle                        string
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| 			DefaultMergeMessageCommitsLimit          int
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| 			DefaultMergeMessageSize                  int
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| 			DefaultMergeMessageAllAuthors            bool
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| 			DefaultMergeMessageMaxApprovers          int
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| 			DefaultMergeMessageOfficialApproversOnly bool
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| 			PopulateSquashCommentWithCommitMessages  bool
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| 			AddCoCommitterTrailers                   bool
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| 			TestConflictingPatchesWithGitApply       bool
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| 		} `ini:"repository.pull-request"`
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| 
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| 		// Issue Setting
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| 		Issue struct {
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| 			LockReasons []string
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| 		} `ini:"repository.issue"`
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| 
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| 		Release struct {
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| 			AllowedTypes     string
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| 			DefaultPagingNum int
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| 		} `ini:"repository.release"`
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| 
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| 		Signing struct {
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| 			SigningKey        string
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| 			SigningName       string
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| 			SigningEmail      string
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| 			InitialCommit     []string
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| 			CRUDActions       []string `ini:"CRUD_ACTIONS"`
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| 			Merges            []string
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| 			Wiki              []string
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| 			DefaultTrustModel string
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| 		} `ini:"repository.signing"`
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| 	}{
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| 		DetectedCharsetsOrder: []string{
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| 			"UTF-8",
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| 			"UTF-16BE",
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| 			"UTF-16LE",
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| 			"UTF-32BE",
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| 			"UTF-32LE",
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| 			"ISO-8859-1",
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| 			"windows-1252",
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| 			"ISO-8859-2",
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| 			"windows-1250",
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| 			"ISO-8859-5",
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| 			"ISO-8859-6",
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| 			"ISO-8859-7",
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| 			"windows-1253",
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| 			"ISO-8859-8-I",
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| 			"windows-1255",
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| 			"ISO-8859-8",
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| 			"windows-1251",
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| 			"windows-1256",
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| 			"KOI8-R",
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| 			"ISO-8859-9",
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| 			"windows-1254",
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| 			"Shift_JIS",
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| 			"GB18030",
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| 			"EUC-JP",
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| 			"EUC-KR",
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| 			"Big5",
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| 			"ISO-2022-JP",
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| 			"ISO-2022-KR",
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| 			"ISO-2022-CN",
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| 			"IBM424_rtl",
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| 			"IBM424_ltr",
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| 			"IBM420_rtl",
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| 			"IBM420_ltr",
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| 		},
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| 		DetectedCharsetScore:                    map[string]int{},
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| 		AnsiCharset:                             "",
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| 		ForcePrivate:                            false,
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| 		DefaultPrivate:                          RepoCreatingLastUserVisibility,
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| 		DefaultPushCreatePrivate:                true,
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| 		MaxCreationLimit:                        -1,
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| 		PreferredLicenses:                       []string{"Apache License 2.0", "MIT License"},
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| 		DisableHTTPGit:                          false,
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| 		AccessControlAllowOrigin:                "",
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| 		UseCompatSSHURI:                         false,
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| 		DefaultCloseIssuesViaCommitsInAnyBranch: false,
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| 		EnablePushCreateUser:                    false,
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| 		EnablePushCreateOrg:                     false,
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| 		DisabledRepoUnits:                       []string{},
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| 		DefaultRepoUnits:                        []string{},
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| 		PrefixArchiveFiles:                      true,
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| 		DisableMigrations:                       false,
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| 		DisableStars:                            false,
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| 		DefaultBranch:                           "main",
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| 
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| 		// Repository editor settings
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| 		Editor: struct {
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| 			LineWrapExtensions   []string
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| 			PreviewableFileModes []string
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| 		}{
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| 			LineWrapExtensions:   strings.Split(".txt,.md,.markdown,.mdown,.mkd,", ","),
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| 			PreviewableFileModes: []string{"markdown"},
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| 		},
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| 
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| 		// Repository upload settings
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| 		Upload: struct {
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| 			Enabled      bool
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| 			TempPath     string
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| 			AllowedTypes string
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| 			FileMaxSize  int64
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| 			MaxFiles     int
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| 		}{
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| 			Enabled:      true,
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| 			TempPath:     "data/tmp/uploads",
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| 			AllowedTypes: "",
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| 			FileMaxSize:  3,
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| 			MaxFiles:     5,
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| 		},
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| 
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| 		// Repository local settings
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| 		Local: struct {
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| 			LocalCopyPath string
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| 		}{
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| 			LocalCopyPath: "tmp/local-repo",
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| 		},
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| 
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| 		// Pull request settings
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| 		PullRequest: struct {
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| 			WorkInProgressPrefixes                   []string
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| 			CloseKeywords                            []string
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| 			ReopenKeywords                           []string
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| 			DefaultMergeStyle                        string
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| 			DefaultMergeMessageCommitsLimit          int
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| 			DefaultMergeMessageSize                  int
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| 			DefaultMergeMessageAllAuthors            bool
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| 			DefaultMergeMessageMaxApprovers          int
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| 			DefaultMergeMessageOfficialApproversOnly bool
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| 			PopulateSquashCommentWithCommitMessages  bool
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| 			AddCoCommitterTrailers                   bool
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| 			TestConflictingPatchesWithGitApply       bool
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| 		}{
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| 			WorkInProgressPrefixes: []string{"WIP:", "[WIP]"},
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| 			// Same as GitHub. See
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| 			// https://help.github.com/articles/closing-issues-via-commit-messages
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| 			CloseKeywords:                            strings.Split("close,closes,closed,fix,fixes,fixed,resolve,resolves,resolved", ","),
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| 			ReopenKeywords:                           strings.Split("reopen,reopens,reopened", ","),
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| 			DefaultMergeStyle:                        "merge",
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| 			DefaultMergeMessageCommitsLimit:          50,
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| 			DefaultMergeMessageSize:                  5 * 1024,
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| 			DefaultMergeMessageAllAuthors:            false,
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| 			DefaultMergeMessageMaxApprovers:          10,
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| 			DefaultMergeMessageOfficialApproversOnly: true,
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| 			PopulateSquashCommentWithCommitMessages:  false,
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| 			AddCoCommitterTrailers:                   true,
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| 		},
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| 
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| 		// Issue settings
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| 		Issue: struct {
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| 			LockReasons []string
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| 		}{
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| 			LockReasons: strings.Split("Too heated,Off-topic,Spam,Resolved", ","),
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| 		},
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| 
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| 		Release: struct {
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| 			AllowedTypes     string
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| 			DefaultPagingNum int
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| 		}{
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| 			AllowedTypes:     "",
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| 			DefaultPagingNum: 10,
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| 		},
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| 
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| 		// Signing settings
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| 		Signing: struct {
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| 			SigningKey        string
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| 			SigningName       string
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| 			SigningEmail      string
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| 			InitialCommit     []string
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| 			CRUDActions       []string `ini:"CRUD_ACTIONS"`
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| 			Merges            []string
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| 			Wiki              []string
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| 			DefaultTrustModel string
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| 		}{
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| 			SigningKey:        "default",
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| 			SigningName:       "",
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| 			SigningEmail:      "",
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| 			InitialCommit:     []string{"always"},
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| 			CRUDActions:       []string{"pubkey", "twofa", "parentsigned"},
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| 			Merges:            []string{"pubkey", "twofa", "basesigned", "commitssigned"},
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| 			Wiki:              []string{"never"},
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| 			DefaultTrustModel: "collaborator",
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| 		},
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| 	}
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| 	RepoRootPath string
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| 	ScriptType   = "bash"
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| 
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| 	RepoArchive = struct {
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| 		Storage
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| 	}{}
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| )
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| 
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| func newRepository() {
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| 	var err error
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| 	// Determine and create root git repository path.
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| 	sec := Cfg.Section("repository")
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| 	Repository.DisableHTTPGit = sec.Key("DISABLE_HTTP_GIT").MustBool()
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| 	Repository.UseCompatSSHURI = sec.Key("USE_COMPAT_SSH_URI").MustBool()
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| 	Repository.MaxCreationLimit = sec.Key("MAX_CREATION_LIMIT").MustInt(-1)
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| 	Repository.DefaultBranch = sec.Key("DEFAULT_BRANCH").MustString(Repository.DefaultBranch)
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| 	RepoRootPath = sec.Key("ROOT").MustString(path.Join(AppDataPath, "gitea-repositories"))
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| 	forcePathSeparator(RepoRootPath)
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| 	if !filepath.IsAbs(RepoRootPath) {
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| 		RepoRootPath = filepath.Join(AppWorkPath, RepoRootPath)
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| 	} else {
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| 		RepoRootPath = filepath.Clean(RepoRootPath)
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| 	}
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| 	defaultDetectedCharsetsOrder := make([]string, 0, len(Repository.DetectedCharsetsOrder))
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| 	for _, charset := range Repository.DetectedCharsetsOrder {
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| 		defaultDetectedCharsetsOrder = append(defaultDetectedCharsetsOrder, strings.ToLower(strings.TrimSpace(charset)))
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| 	}
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| 	ScriptType = sec.Key("SCRIPT_TYPE").MustString("bash")
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| 
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| 	if _, err := exec.LookPath(ScriptType); err != nil {
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| 		log.Warn("SCRIPT_TYPE %q is not on the current PATH. Are you sure that this is the correct SCRIPT_TYPE?", ScriptType)
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| 	}
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| 
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| 	if err = Cfg.Section("repository").MapTo(&Repository); err != nil {
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| 		log.Fatal("Failed to map Repository settings: %v", err)
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| 	} else if err = Cfg.Section("repository.editor").MapTo(&Repository.Editor); err != nil {
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| 		log.Fatal("Failed to map Repository.Editor settings: %v", err)
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| 	} else if err = Cfg.Section("repository.upload").MapTo(&Repository.Upload); err != nil {
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| 		log.Fatal("Failed to map Repository.Upload settings: %v", err)
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| 	} else if err = Cfg.Section("repository.local").MapTo(&Repository.Local); err != nil {
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| 		log.Fatal("Failed to map Repository.Local settings: %v", err)
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| 	} else if err = Cfg.Section("repository.pull-request").MapTo(&Repository.PullRequest); err != nil {
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| 		log.Fatal("Failed to map Repository.PullRequest settings: %v", err)
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| 	}
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| 
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| 	if !Cfg.Section("packages").Key("ENABLED").MustBool(true) {
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| 		Repository.DisabledRepoUnits = append(Repository.DisabledRepoUnits, "repo.packages")
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| 	}
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| 
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| 	// Handle default trustmodel settings
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| 	Repository.Signing.DefaultTrustModel = strings.ToLower(strings.TrimSpace(Repository.Signing.DefaultTrustModel))
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| 	if Repository.Signing.DefaultTrustModel == "default" {
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| 		Repository.Signing.DefaultTrustModel = "collaborator"
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| 	}
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| 
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| 	// Handle preferred charset orders
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| 	preferred := make([]string, 0, len(Repository.DetectedCharsetsOrder))
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| 	for _, charset := range Repository.DetectedCharsetsOrder {
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| 		canonicalCharset := strings.ToLower(strings.TrimSpace(charset))
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| 		preferred = append(preferred, canonicalCharset)
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| 		// remove it from the defaults
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| 		for i, charset := range defaultDetectedCharsetsOrder {
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| 			if charset == canonicalCharset {
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| 				defaultDetectedCharsetsOrder = append(defaultDetectedCharsetsOrder[:i], defaultDetectedCharsetsOrder[i+1:]...)
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| 				break
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| 			}
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| 		}
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| 	}
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| 
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| 	i := 0
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| 	for _, charset := range preferred {
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| 		// Add the defaults
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| 		if charset == "defaults" {
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| 			for _, charset := range defaultDetectedCharsetsOrder {
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| 				canonicalCharset := strings.ToLower(strings.TrimSpace(charset))
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| 				if _, has := Repository.DetectedCharsetScore[canonicalCharset]; !has {
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| 					Repository.DetectedCharsetScore[canonicalCharset] = i
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| 					i++
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| 				}
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| 			}
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| 			continue
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| 		}
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| 		if _, has := Repository.DetectedCharsetScore[charset]; !has {
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| 			Repository.DetectedCharsetScore[charset] = i
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| 			i++
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| 		}
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| 	}
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| 
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| 	if !filepath.IsAbs(Repository.Upload.TempPath) {
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| 		Repository.Upload.TempPath = path.Join(AppWorkPath, Repository.Upload.TempPath)
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| 	}
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| 
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| 	RepoArchive.Storage = getStorage("repo-archive", "", nil)
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| }
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