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-rw-r--r--modules/cd/default.nix13
-rw-r--r--modules/tv/git.nix121
2 files changed, 100 insertions, 34 deletions
diff --git a/modules/cd/default.nix b/modules/cd/default.nix
index 9bb4d0f2a..1d621e03d 100644
--- a/modules/cd/default.nix
+++ b/modules/cd/default.nix
@@ -62,7 +62,18 @@
# TODO warn about stale repodirs
repos = addNames {
testing = {
- # TODO hooks = { post-receive = ...
+ hooks = {
+ update = ''
+ #! /bin/sh
+ set -euf
+ echo update hook: $* >&2
+ '';
+ post-update = ''
+ #! /bin/sh
+ set -euf
+ echo post-update hook: $* >&2
+ '';
+ };
};
};
diff --git a/modules/tv/git.nix b/modules/tv/git.nix
index 4d9e200ad..d264125dc 100644
--- a/modules/tv/git.nix
+++ b/modules/tv/git.nix
@@ -2,12 +2,12 @@
let
inherit (builtins)
- attrNames concatLists filter hasAttr head lessThan removeAttrs tail toJSON
- typeOf;
+ attrNames attrValues concatLists filter hasAttr head lessThan removeAttrs
+ tail toJSON typeOf;
inherit (lib)
- concatStrings concatStringsSep escapeShellArg hasPrefix listToAttrs
- makeSearchPath mapAttrsToList mkIf mkOption removePrefix singleton
- sort types unique;
+ concatMapStringsSep concatStringsSep escapeShellArg hasPrefix
+ literalExample makeSearchPath mapAttrsToList mkIf mkOption optionalString
+ removePrefix singleton sort types unique;
inherit (pkgs) linkFarm writeScript writeText;
@@ -54,8 +54,6 @@ let
reponames = rules: sort lessThan (unique (map (x: x.repo.name) rules));
- toShellArgs = xs: toString (map escapeShellArg xs);
-
# TODO makeGitHooks that uses runCommand instead of scriptFarm?
scriptFarm =
farm-name: scripts:
@@ -99,7 +97,42 @@ in
type = types.unspecified;
};
repos = mkOption {
- type = types.unspecified;
+ type = types.attrsOf (types.submodule ({
+ options = {
+ name = mkOption {
+ type = types.str;
+ description = ''
+ Repository name.
+ '';
+ };
+ hooks = mkOption {
+ type = types.attrsOf types.str;
+ description = ''
+ Repository-specific hooks.
+ '';
+ };
+ };
+ }));
+
+ default = {};
+
+ example = literalExample ''
+ {
+ testing = {
+ name = "testing";
+ hooks.post-update = '''
+ #! /bin/sh
+ set -euf
+ echo post-update hook: $* >&2
+ ''';
+ };
+ testing2 = { name = "testing2"; };
+ }
+ '';
+
+ description = ''
+ Repositories.
+ '';
};
users = mkOption {
type = types.unspecified;
@@ -168,28 +201,56 @@ in
findutils
gawk
git
+ gnugrep
+ gnused
])}
dataDir=${escapeShellArg cfg.dataDir}
mkdir -p "$dataDir"
- for reponame in ${toShellArgs (reponames cfg.rules)}; do
- repodir=$dataDir/$reponame
- if ! test -d "$repodir"; then
- mkdir -m 0700 "$repodir"
- git init --bare --template=/var/empty "$repodir"
- chown -R git: "$repodir"
- # branches/
- # description
- # hooks/
- # info/
- fi
- ln -snf ${hooks} "$repodir/hooks"
- done
+ # Notice how the presence of hooks symlinks determine whether
+ # we manage a repositry or not.
+
+ # Make sure that no existing repository has hooks. We can delete
+ # symlinks because we assume we created them.
+ find "$dataDir" -mindepth 2 -maxdepth 2 -name hooks -type l -delete
+ bad_hooks=$(find "$dataDir" -mindepth 2 -maxdepth 2 -name hooks)
+ if echo "$bad_hooks" | grep -q .; then
+ printf 'error: unknown hooks:\n%s\n' \
+ "$(echo "$bad_hooks" | sed 's/^/ /')" \
+ >&2
+ exit -1
+ fi
+
+ # Initialize repositories.
+ ${concatMapStringsSep "\n" (repo:
+ let
+ hooks = scriptFarm "git-ssh-hooks" (makeHooks repo);
+ in
+ ''
+ reponame=${escapeShellArg repo.name}
+ repodir=$dataDir/$reponame
+ if ! test -d "$repodir"; then
+ mkdir -m 0700 "$repodir"
+ git init --bare --template=/var/empty "$repodir"
+ chown -R git: "$repodir"
+ fi
+ ln -s ${hooks} "$repodir/hooks"
+ ''
+ ) (attrValues cfg.repos)}
+
+ # Warn about repositories that exist but aren't mentioned in the
+ # current configuration (and thus didn't receive a hooks symlink).
+ unknown_repos=$(find "$dataDir" -mindepth 1 -maxdepth 1 \
+ -type d \! -exec test -e '{}/hooks' \; -print)
+ if echo "$unknown_repos" | grep -q .; then
+ printf 'warning: stale repositories:\n%s\n' \
+ "$(echo "$unknown_repos" | sed 's/^/ /')" \
+ >&2
+ fi
'';
- # TODO repo-specific hooks
- hooks = scriptFarm "git-ssh-hooks" {
+ makeHooks = repo: removeAttrs repo.hooks [ "pre-receive" ] // {
pre-receive = ''
#! /bin/sh
set -euf
@@ -243,16 +304,10 @@ in
fi
systemd-cat -p info -t git-ssh echo "$accept_string"
- '';
- update = ''
- #! /bin/sh
- set -euf
- echo update hook: $* >&2
- '';
- post-update = ''
- #! /bin/sh
- set -euf
- echo post-update hook: $* >&2
+
+ ${optionalString (hasAttr "post-receive" repo.hooks) ''
+ # custom post-receive hook
+ ${repo.hooks.post-receive}''}
'';
};