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# Wrapper for running cgit through thttpd with TVL-specific
# configuration.
#
# In practice this is only used for //ops/modules/cgit, but exposing
# it here makes it easy to experiment with cgit locally.
{ depot, lib, pkgs, ... }:
let
cgitConfig = repo: pkgs.writeText "cgitrc" ''
# Global configuration
virtual-root=/
enable-http-clone=0
readme=:README.md
about-filter=${depot.tools.cheddar.about-filter}/bin/cheddar-about
source-filter=${depot.tools.cheddar}/bin/cheddar
enable-log-filecount=1
enable-log-linecount=1
enable-follow-links=1
enable-blame=1
mimetype-file=${pkgs.mime-types}/etc/mime.types
logo=https://static.tvl.fyi/${depot.web.static.drvHash}/logo-animated.svg
# Repository configuration
repo.url=depot
repo.path=${repo}
repo.desc=monorepo for the virus lounge
repo.owner=The Virus Lounge
repo.clone-url=https://code.tvl.fyi/depot.git
'';
thttpdConfig = port: pkgs.writeText "thttpd.conf" ''
port=${toString port}
dir=${depot.third_party.cgit}/cgit
nochroot
novhost
cgipat=**.cgi
'';
# Patched version of thttpd that serves cgit.cgi as the index and
# sets the environment variable for pointing cgit at the correct
# configuration.
#
# Things are done this way because recompilation of thttpd is much
# faster than cgit.
thttpdConfigPatch = repo: pkgs.writeText "thttpd_cgit_conf.patch" ''
diff --git a/libhttpd.c b/libhttpd.c
index c6b1622..eef4b73 100644
--- a/libhttpd.c
+++ b/libhttpd.c
@@ -3055,4 +3055,6 @@ make_envp( httpd_conn* hc )
envn = 0;
+ // force cgit to load the correct configuration
+ envp[envn++] = "CGIT_CONFIG=${cgitConfig repo}";
envp[envn++] = build_env( "PATH=%s", CGI_PATH );
#ifdef CGI_LD_LIBRARY_PATH
'';
thttpdCgit = repo: pkgs.thttpd.overrideAttrs (old: {
patches = [
./thttpd_cgi_idx.patch
(thttpdConfigPatch repo)
];
});
in
lib.makeOverridable
({ port ? 2448
, repo ? "/var/lib/gerrit/git/depot.git/"
}: pkgs.writeShellScript "cgit-launch" ''
exec ${thttpdCgit repo}/bin/thttpd -D -C ${thttpdConfig port}
'')
{ }
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