ec38839c33
Previously we served the dumb git HTTP protocol from code.tvl.fyi via
cgit. This CL disables this feature and instead runs josh in the same
location (by redirecting appropriately), but while also enabling
partial cloning of all subtrees of the depot.
For example, after this CL the following would result in an
independent clone of //nix/readTree:
git clone https://code.tvl.fyi/depot.git:/nix/readTree.git
Note that there are no josh workspaces configured at all for now,
these references are only for static depot subpaths.
Please refer to the documentation for josh for more information on
available kinds of josh filters.
Josh state is kept in a systemd state directory in /var/lib/josh and
backed up to Restic. Backing this up is necessary, as josh uses
stateful information to do things like tracking merges and rewriting
history per subtree appropriately to avoid cloned repositories ending
up in peculiar states.
Change-Id: I156f0298c2aa42e3bdbf5a0e86109070d640c56e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3563
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
74 lines
2.1 KiB
Nix
74 lines
2.1 KiB
Nix
# This derivation configures a 'cgit' instance to serve repositories
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# from a different source.
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{ depot, pkgs, ... }:
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let
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inherit (pkgs)
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mime-types
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thttpd
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writeShellScriptBin
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writeText
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;
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sourceFilter = writeShellScriptBin "cheddar-about" ''
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exec ${depot.tools.cheddar}/bin/cheddar --about-filter $@
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'';
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cgitConfig = writeText "cgitrc" ''
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# Global configuration
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virtual-root=/
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enable-http-clone=0
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readme=:README.md
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about-filter=${sourceFilter}/bin/cheddar-about
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source-filter=${depot.tools.cheddar}/bin/cheddar
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enable-log-filecount=1
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enable-log-linecount=1
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enable-follow-links=1
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enable-blame=1
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mimetype-file=${mime-types}/etc/mime.types
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logo=/plain/fun/logo/depot-logo.png
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# Repository configuration
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repo.url=depot
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repo.path=/var/lib/gerrit/git/depot.git/
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repo.desc=monorepo for the virus lounge
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repo.owner=The Virus Lounge
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repo.clone-url=https://code.tvl.fyi/depot.git
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'';
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thttpdConfig = writeText "thttpd.conf" ''
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port=2448
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dir=${depot.third_party.cgit}/cgit
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nochroot
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novhost
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cgipat=**.cgi
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'';
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# Patched version of thttpd that serves cgit.cgi as the index and
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# sets the environment variable for pointing cgit at the correct
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# configuration.
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#
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# Things are done this way because recompilation of thttpd is much
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# faster than cgit and I don't want to wait long when iterating on
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# config.
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thttpdConfigPatch = writeText "thttpd_cgit_conf.patch" ''
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diff --git a/libhttpd.c b/libhttpd.c
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index c6b1622..eef4b73 100644
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--- a/libhttpd.c
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+++ b/libhttpd.c
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@@ -3055,4 +3055,6 @@ make_envp( httpd_conn* hc )
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envn = 0;
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+ // force cgit to load the correct configuration
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+ envp[envn++] = "CGIT_CONFIG=${cgitConfig}";
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envp[envn++] = build_env( "PATH=%s", CGI_PATH );
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#ifdef CGI_LD_LIBRARY_PATH
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'';
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thttpdCgit = thttpd.overrideAttrs(old: {
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patches = [
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./thttpd_cgi_idx.patch
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thttpdConfigPatch
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];
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});
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in writeShellScriptBin "cgit-launch" ''
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exec ${thttpdCgit}/bin/thttpd -D -C ${thttpdConfig}
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''
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