feat(*): initialize new Snix infrastructure

Co-Authored-By: edef <edef@edef.eu>
Co-Authored-by: Ryan Lahfa <raito@lix.systems>
Change-Id: Ica1cda177a236814de900f50a8a61d288f58f519

third_party/lix_forgejo/0001-lix-Make-a-Code-Review-Gerrit-tab.patch

@@ -0,0 +1,28 @@
+From 0edb45d9dc9a2688c8b66a21df2a555f864fb81c Mon Sep 17 00:00:00 2001
+From: Jade Lovelace <software@lfcode.ca>
+Date: Thu, 16 May 2024 18:15:54 -0700
+Subject: [PATCH 1/2] lix: Make a Code Review (Gerrit) tab
+
+---
+ templates/repo/header.tmpl | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
+index 21017415c1..c5a36b2203 100644
+--- a/templates/repo/header.tmpl
++++ b/templates/repo/header.tmpl
+@@ -99,6 +99,11 @@
+ 					</a>
+ 				{{end}}
+ 
++				{{if and (eq .Repository.Name "snix") (eq .Repository.OwnerName "snix")}}
++					<a class="item" href="https://cl.snix.dev/q/project:snix">
++						{{svg "octicon-code-review"}} Code Review (Gerrit)
++					</a>
++				{{end}}
+ 				{{if .Permission.CanRead $.UnitTypeExternalTracker}}
+ 					<a class="{{if .PageIsIssueList}}active {{end}}item" href="{{.RepoExternalIssuesLink}}" target="_blank" rel="noopener noreferrer">
+ 						{{svg "octicon-link-external"}} {{ctx.Locale.Tr "repo.issues"}}
+-- 
+2.45.1
+

third_party/lix_forgejo/0002-lix-link-gerrit-cl-and-change-ids.patch

@@ -0,0 +1,113 @@
+From c560d6e110377fb6f42e841a0bd35f80c0f2eb29 Mon Sep 17 00:00:00 2001
+From: Jade Lovelace <software@lfcode.ca>
+Date: Thu, 16 May 2024 19:56:25 -0700
+Subject: [PATCH 2/2] lix: link gerrit cl/ and change-ids
+
+This code is a bit dubious but you know, golang
+
+Co-authored-by: Ryan Lahfa <raito@lix.systems>
+---
+ modules/markup/html.go | 59 ++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 59 insertions(+)
+
+diff --git a/modules/markup/html.go b/modules/markup/html.go
+index 2e65827bf7..2d474077a5 100644
+--- a/modules/markup/html.go
++++ b/modules/markup/html.go
+@@ -50,6 +50,20 @@ var (
+ 	// so that abbreviated hash links can be used as well. This matches git and GitHub usability.
+ 	hashCurrentPattern = regexp.MustCompile(`(?:\s|^|\(|\[)([0-9a-f]{7,64})(?:\s|$|\)|\]|[.,:](\s|$))`)
+
++	// Gerrit change ID pattern
++	changeIdPattern = GerritPattern{
++		urlMatch:     1,
++		displayMatch: 1,
++		pattern:      regexp.MustCompile(`(?:\s|^|\(|\[)(I[0-9a-f]{8,40})(?:\s|$|\)|\]|[.,](\s|$))`),
++	}
++
++	// Gerrit cl/ pattern
++	clSlashPattern = GerritPattern{
++		urlMatch:     2,
++		displayMatch: 1,
++		pattern:      regexp.MustCompile(`(?:^|[\s\]\[(){},.;:!?])(cl/([0-9]{0,6}))(?:$|[\s\]\[(){},.;:!?])`),
++	}
++
+ 	// shortLinkPattern matches short but difficult to parse [[name|link|arg=test]] syntax
+ 	shortLinkPattern = regexp.MustCompile(`\[\[(.*?)\]\](\w*)`)
+
+@@ -77,6 +91,14 @@ var (
+ 	InlineCodeBlockRegex = regexp.MustCompile("`[^`]+`")
+ )
+
++type GerritPattern struct {
++	// The match group to put in the URL
++	urlMatch int
++	// The match group to render as the link
++	displayMatch int
++	pattern      *regexp.Regexp
++}
++
+ // CSS class for action keywords (e.g. "closes: #1")
+ const keywordClass = "issue-keyword"
+
+@@ -152,6 +174,7 @@ var defaultProcessors = []processor{
+ 	issueIndexPatternProcessor,
+ 	commitCrossReferencePatternProcessor,
+ 	hashCurrentPatternProcessor,
++	gerritCLPatternProcessor,
+ 	emailAddressProcessor,
+ 	emojiProcessor,
+ 	emojiShortCodeProcessor,
+@@ -179,6 +202,7 @@ var commitMessageProcessors = []processor{
+ 	issueIndexPatternProcessor,
+ 	commitCrossReferencePatternProcessor,
+ 	hashCurrentPatternProcessor,
++	gerritCLPatternProcessor,
+ 	emailAddressProcessor,
+ 	emojiProcessor,
+ 	emojiShortCodeProcessor,
+@@ -788,6 +812,41 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
+ 	}
+ }
+
++func gerritCLPatternProcessor(ctx *RenderContext, node *html.Node) {
++	if ctx.Metas == nil || node == nil {
++		return
++	}
++
++	pats := []*GerritPattern{
++		&changeIdPattern,
++		&clSlashPattern,
++	}
++
++	next := node.NextSibling
++	for node != nil && node != next {
++		for _, pat := range pats {
++			m := pat.pattern.FindStringSubmatchIndex(node.Data)
++			if m == nil {
++				continue
++			}
++
++			linkPart := node.Data[m[pat.urlMatch*2]:m[pat.urlMatch*2+1]]
++			linkNamePart := node.Data[m[pat.displayMatch*2]:m[pat.displayMatch*2+1]]
++			link := util.URLJoin("https://cl.snix.dev/q", linkPart)
++			replaceContent(node, m[pat.displayMatch*2], m[pat.displayMatch*2+1], createCodeLink(link, linkNamePart, ""))
++		}
++
++		// FIXME: I don't understand how any of this stuff was supposed to work to
++		// begin with, since it seems like it returns if it doesn't just match in
++		// the first node???!
++		if node.NextSibling == nil {
++			return
++		}
++
++		node = node.NextSibling.NextSibling
++	}
++}
++
+ func fullIssuePatternProcessor(ctx *RenderContext, node *html.Node) {
+ 	if ctx.Metas == nil {
+ 		return
+--
+2.47.0
+

third_party/lix_forgejo/api-dont-notify.patch

@@ -0,0 +1,79 @@
+From 616ea9925fb7a28f1594694665ca89462bcbd461 Mon Sep 17 00:00:00 2001
+From: Jade Lovelace <software@lfcode.ca>
+Date: Tue, 19 Mar 2024 18:42:13 -0700
+Subject: [PATCH] Add a dont_notify option to the issue create api
+
+yolo
+---
+ modules/structs/issue.go     | 1 +
+ routers/api/v1/repo/issue.go | 2 +-
+ routers/web/repo/issue.go    | 2 +-
+ services/issue/issue.go      | 6 +++++-
+ 4 files changed, 8 insertions(+), 3 deletions(-)
+
+diff --git a/modules/structs/issue.go b/modules/structs/issue.go
+index e2b49e94c5..09d239cdb7 100644
+--- a/modules/structs/issue.go
++++ b/modules/structs/issue.go
+@@ -97,6 +97,7 @@ type CreateIssueOption struct {
+ 	// list of label ids
+ 	Labels []int64 `json:"labels"`
+ 	Closed bool    `json:"closed"`
++	DontNotify bool `json:"dont_notify"`
+ }
+ 
+ // EditIssueOption options for editing an issue
+diff --git a/routers/api/v1/repo/issue.go b/routers/api/v1/repo/issue.go
+index 0d304dd66d..d9431ef201 100644
+--- a/routers/api/v1/repo/issue.go
++++ b/routers/api/v1/repo/issue.go
+@@ -708,7 +708,7 @@ func CreateIssue(ctx *context.APIContext) {
+ 		form.Labels = make([]int64, 0)
+ 	}
+ 
+-	if err := issue_service.NewIssue(ctx, ctx.Repo.Repository, issue, form.Labels, nil, assigneeIDs); err != nil {
++	if err := issue_service.NewIssue(ctx, ctx.Repo.Repository, issue, form.Labels, nil, assigneeIDs, !form.DontNotify); err != nil {
+ 		if errors.Is(err, user_model.ErrBlockedByUser) {
+ 			ctx.Error(http.StatusForbidden, "BlockedByUser", err)
+ 			return
+diff --git a/routers/web/repo/issue.go b/routers/web/repo/issue.go
+index afa6160d42..dbc500819e 100644
+--- a/routers/web/repo/issue.go
++++ b/routers/web/repo/issue.go
+@@ -1249,7 +1249,7 @@ func NewIssuePost(ctx *context.Context) {
+ 		Ref:         form.Ref,
+ 	}
+ 
+-	if err := issue_service.NewIssue(ctx, repo, issue, labelIDs, attachments, assigneeIDs); err != nil {
++	if err := issue_service.NewIssue(ctx, repo, issue, labelIDs, attachments, assigneeIDs, true); err != nil {
+ 		if errors.Is(err, user_model.ErrBlockedByUser) {
+ 			ctx.RenderWithErr(ctx.Tr("repo.issues.blocked_by_user"), tplIssueNew, form)
+ 			return
+diff --git a/services/issue/issue.go b/services/issue/issue.go
+index 5e726176d0..cdb2f69828 100644
+--- a/services/issue/issue.go
++++ b/services/issue/issue.go
+@@ -24,7 +24,7 @@ import (
+ )
+ 
+ // NewIssue creates new issue with labels for repository.
+-func NewIssue(ctx context.Context, repo *repo_model.Repository, issue *issues_model.Issue, labelIDs []int64, uuids []string, assigneeIDs []int64) error {
++func NewIssue(ctx context.Context, repo *repo_model.Repository, issue *issues_model.Issue, labelIDs []int64, uuids []string, assigneeIDs []int64, notify bool) error {
+ 	// Check if the user is not blocked by the repo's owner.
+ 	if user_model.IsBlocked(ctx, repo.OwnerID, issue.PosterID) {
+ 		return user_model.ErrBlockedByUser
+@@ -45,7 +45,11 @@ func NewIssue(ctx context.Context, repo *repo_model.Repository, issue *issues_mo
+ 		return err
+ 	}
+ 
++	if !notify {
++		return nil
++	}
+ 	notify_service.NewIssue(ctx, issue, mentions)
++
+ 	if len(issue.Labels) > 0 {
+ 		notify_service.IssueChangeLabels(ctx, issue.Poster, issue, issue.Labels, nil)
+ 	}
+-- 
+2.44.0
+

third_party/lix_forgejo/default.nix

@@ -0,0 +1,18 @@
+# Patches that the Lix core team developed for git.lix.systems
+# Re-applied for git.snix.dev
+{ ... }: {
+  patches = {
+    # Show a link to upstream for a nixos/nix repository.
+    upstream_link = ./upstream-link.patch;
+    # Make it possible not to be notified upon issue creation.
+    # Minimize noise.
+    api_dont_notify = ./api-dont-notify.patch;
+    # Sign in redirection to the OAuth 2 handler.
+    signin_redirect = ./signin-redirect.patch;
+    # Series to make Forgejo more Gerrit compatible. 
+    forgejo_is_now_gerrit_native = ./0001-lix-Make-a-Code-Review-Gerrit-tab.patch;
+    # Modified for our Gerrit instance.
+    forgejo_knows_about_gerrit = ./0002-lix-link-gerrit-cl-and-change-ids.patch;
+  };
+  custom_emojis = ./emojis.txt;
+}

third_party/lix_forgejo/signin-redirect.patch

@@ -0,0 +1,30 @@
+From efba969f2ea6505417546e5f628066e3f10817d5 Mon Sep 17 00:00:00 2001
+From: Puck Meerburg <puck@puckipedia.com>
+Date: Wed, 8 May 2024 19:28:34 +0000
+Subject: [PATCH] Auto-redirect to oauth2 if a provider is available.
+
+---
+ routers/web/auth/auth.go | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/routers/web/auth/auth.go b/routers/web/auth/auth.go
+index 50fd760d80..c6cb5c9075 100644
+--- a/routers/web/auth/auth.go
++++ b/routers/web/auth/auth.go
+@@ -186,6 +186,13 @@ func SignIn(ctx *context.Context) {
+ 		ctx.ServerError("UserSignIn", err)
+ 		return
+ 	}
++
++	if len(oauth2Providers) > 0 {
++		provider := oauth2Providers[0]
++		ctx.Redirect(setting.AppSubURL + "/user/oauth2/" + provider.DisplayName())
++		return
++	}
++
+ 	ctx.Data["OAuth2Providers"] = oauth2Providers
+ 	ctx.Data["Title"] = ctx.Tr("sign_in")
+ 	ctx.Data["SignInLink"] = setting.AppSubURL + "/user/login"
+-- 
+2.44.0
+

third_party/lix_forgejo/upstream-link.patch

@@ -0,0 +1,14 @@
+diff --git a/templates/repo/issue/view_title.tmpl b/templates/repo/issue/view_title.tmpl
+index c1dd265..9a573ce 100644
+--- a/templates/repo/issue/view_title.tmpl
++++ b/templates/repo/issue/view_title.tmpl
+@@ -16,6 +16,9 @@
+ 			{{if and (or .HasIssuesOrPullsWritePermission .IsIssuePoster) (not .Repository.IsArchived)}}
+ 				<button id="edit-title" class="ui small basic button edit-button not-in-edit{{if .Issue.IsPull}} gt-mr-0{{end}}">{{.locale.Tr "repo.issues.edit"}}</button>
+ 			{{end}}
++			{{if and (eq .Repository.Name "nix") (eq .Repository.OwnerName "NixOS")}}
++				<a role="button" class="ui small basic button" href="https://github.com/NixOS/nix/issues/{{.Issue.Index}}">{{svg "octicon-mark-github"}} Open upstream</a>
++			{{end}}
+ 			{{if not .Issue.IsPull}}
+ 				<a role="button" class="ui small green button new-issue-button gt-mr-0" href="{{.RepoLink}}/issues/new{{if .NewIssueChooseTemplate}}/choose{{end}}">{{.locale.Tr "repo.issues.new"}}</a>
+ 			{{end}}