feat(cgit): add initial config and lighttpd setup

* Introduce config files for `cgit` and its repository list
* Add `lighttpd` setup for proxying git and serving web UI
* Enable caching, repo sorting, snapshot formats, and custom
  about page filters for improved usability
* Configure mimetypes and file patterns for repo info pages
* Support web clone URLs and sectioned repo display

Future changes may expand repository listing and adjust filters
for project requirements.

3 files changed, 182 insertions, 0 deletions

diff --git a/cgitrc b/cgitrc
new file mode 100644
index 0000000..e09d2d3
--- /dev/null
+++ b/cgitrc
@@ -0,0 +1,153 @@
+#
+## cgit config
+# reference: https://linux.die.net/man/5/cgitrc
+#
+#
+# Enable caching of up to 1000 output entries
+cache-size=100000
+
+## ttl for root page
+cache-root-ttl=30
+
+## ttl for repo summary page
+cache-repo-ttl=30
+
+## ttl for other dynamic pages
+cache-dynamic-ttl=15
+
+## ttl for static pages (addressed by SHA-1)
+cache-static-ttl=-1
+
+# css
+css=/cgit.css
+logo=/cgit.png
+#logo=https://git-scm.com/images/logos/downloads/Git-Logo-1788C.png
+
+# Enable ASCII art commit history graph on the log pages
+enable-commit-graph=1
+
+enable-follow-links=1
+enable-subject-links=1
+enable-index-links=1
+
+enable-git-config=1
+enable-html-serving=1
+
+enable-http-clone=1
+enable-git-clone=1
+
+enable-index-owner=0
+enable-gitweb-owner=1
+
+enable-log-filecount=1
+enable-log-linecount=1
+
+enable-remote-branches=1
+enable-tree-linenumbers=1
+
+# summary info
+summary-branches=10
+summary-log=10
+summary-tags=10
+
+# Sort  by age/name
+repository-sort=name
+branch-sort=age
+commit-sort=age
+
+# Enable statistics per week, month and quarter
+max-stats=year
+
+# show local time not utc
+local-time=1
+
+root-title=Git Repos of Saturneric
+root-desc=Hosting opensource projects related to Saturneric
+root-readme=/var/www/about.html
+#footer=/var/www/footer.html
+
+# if you do not want that webcrawler (like google) index your site
+robots=noindex, nofollow
+
+# if cgit messes up links, use a virtual-root. For example has cgit.example.org/ this value:
+virtual-root=/
+
+side-by-side-diffs=0
+
+# needs python-pygments
+# source-filter=/usr/lib/cgit/filters/syntax-highlighting.py
+
+# Format markdown, restructuredtext, manpages, text files, and html files through the right converters
+about-filter=/usr/lib/cgit/filters/about-formatting.sh
+
+# available snaps
+snapshots=tar.gz zip
+
+# Specify some default clone urls using macro expansion
+clone-url=https://git.bktus.com/$CGIT_REPO_URL.git
+
+##
+## List of common mimetypes
+##
+
+mimetype.gif=image/gif
+mimetype.html=text/html
+mimetype.jpg=image/jpeg
+mimetype.jpeg=image/jpeg
+mimetype.pdf=application/pdf
+mimetype.png=image/png
+mimetype.svg=image/svg+xml
+
+##
+### Search for these files in the root of the default branch of repositories
+### for coming up with the about page:
+###
+readme=:README.md
+readme=:readme.md
+readme=:README.mkd
+readme=:readme.mkd
+readme=:README.rst
+readme=:readme.rst
+readme=:README.html
+readme=:readme.html
+readme=:README.htm
+readme=:readme.htm
+readme=:README.txt
+readme=:readme.txt
+readme=:README
+readme=:readme
+readme=:INSTALL.md
+readme=:install.md
+readme=:INSTALL.mkd
+readme=:install.mkd
+readme=:INSTALL.rst
+readme=:install.rst
+readme=:INSTALL.html
+readme=:install.html
+readme=:INSTALL.htm
+readme=:install.htm
+readme=:INSTALL.txt
+readme=:install.txt
+readme=:INSTALL
+readme=:install
+
+# sections
+section-from-path=1
+section-sort=1
+
+# repos
+max-repo-count=99999
+remove-suffix=1
+scan-hidden-path=1
+scan-path=/home/git/repositories
+
+##
+## List of repositories.
+## PS: Any repositories listed when section is unset will not be
+##     displayed under a section heading
+## PPS: This list could be kept in a different file (e.g. '/etc/cgitrepos')
+##      and included like this:
+##        include=/etc/cgitrepos
+##
+
+include=/etc/cgitrepos
\ No newline at end of file
diff --git a/cgitrepos b/cgitrepos
new file mode 100644
index 0000000..2ee70a0
--- /dev/null
+++ b/cgitrepos
@@ -0,0 +1,2 @@
+##
+## List of repositories.
\ No newline at end of file
diff --git a/lighttpd.conf b/lighttpd.conf
new file mode 100644
index 0000000..99bdca7
--- /dev/null
+++ b/lighttpd.conf
@@ -0,0 +1,27 @@
+server.modules += ( "mod_cgi", "mod_rewrite", "mod_alias", "mod_proxy", "mod_access" )
+
+$HTTP["url"] =~ "^/(.+?)\.git/(info/refs|git-upload-pack)$" {
+    $HTTP["request-method"] !~ "^(GET|POST)$" {
+        url.access-deny = ("")
+    }
+
+    proxy.server = (
+        "" => ((
+            "host" => "gitea",
+            "port" => 3000,
+        ))
+    )
+}
+else $HTTP["url"] =~ "^/" {
+    server.document-root = "/usr/share/webapps/cgit/"
+    server.indexfiles = ("cgit.cgi")
+
+    cgi.assign = ("cgit.cgi" => "")
+    mimetype.assign = ( ".css" => "text/css" )
+
+    # Rewrite any other url but the asset urls to be handled by the cgit
+    # executable. Use with virtual-root=/ cgitrc setting.
+    url.rewrite-once = (
+        "^/((?!cgit\.(css|png)$)(?!favicon\.ico$)(?!robots\.txt$).*)$" => "/cgit.cgi/$1"
+    )
+}
\ No newline at end of file