diff options
Diffstat (limited to 'krebs/3modules/build.nix')
| -rw-r--r-- | krebs/3modules/build.nix | 218 |
1 files changed, 147 insertions, 71 deletions
diff --git a/krebs/3modules/build.nix b/krebs/3modules/build.nix index 0f8aec89d..0da5dd38a 100644 --- a/krebs/3modules/build.nix +++ b/krebs/3modules/build.nix @@ -28,81 +28,157 @@ let type = types.user; }; - options.krebs.build.source-version = mkOption { - type = types.enum [ 1 2 ]; - default = 1; + options.krebs.build.source = let + raw = types.either types.str types.path; + url = types.submodule { + options = { + url = mkOption { + type = types.str; + }; + rev = mkOption { + type = types.str; + }; + dev = mkOption { + type = types.str; + }; + }; + }; + in mkOption { + type = types.attrsOf (types.either types.str url); + apply = let f = mapAttrs (_: value: { + string = value; + path = toString value; + set = f value; + }.${typeOf value}); in f; + default = {}; }; - options.krebs.build.source = getAttr "v${toString config.krebs.build.source-version}" { - v1 = { - dir = mkOption { - type = let - default-host = config.krebs.current.host; - in types.attrsOf (types.submodule ({ config, ... }: { - options = { - host = mkOption { - type = types.host; - default = default-host; - }; - path = mkOption { - type = types.str; - }; - target-path = mkOption { - type = types.str; - default = "/root/${config._module.args.name}"; - }; - url = mkOption { - type = types.str; - default = "file://${config.host.name}${config.path}"; - }; - }; - })); - default = {}; - }; + options.krebs.build.populate = mkOption { + type = types.str; + default = let + source = config.krebs.build.source; + target-user = maybeEnv "target_user" "root"; + target-host = maybeEnv "target_host" config.krebs.build.host.name; + target-path = maybeEnv "target_path" "/var/src"; + out = '' + #! /bin/sh + set -eu - git = mkOption { - type = with types; attrsOf (submodule ({ config, ... }: { - options = { - url = mkOption { - type = types.str; # TODO must be shell safe - }; - rev = mkOption { - type = types.str; - }; - target-path = mkOption { - type = types.str; - default = "/root/${config._module.args.name}"; - }; - }; - })); - default = {}; - }; - }; + verbose() { + printf '+%s\n' "$(printf ' %q' "$@")" >&2 + "$@" + } - v2 = let - raw = types.either types.str types.path; - url = types.submodule { - options = { - url = mkOption { - type = types.str; - }; - rev = mkOption { - type = types.str; - }; - dev = mkOption { - type = types.str; - }; - }; - }; - in mkOption { - type = types.attrsOf (types.either types.str url); - apply = let f = mapAttrs (_: value: { - string = value; - path = toString value; - set = f value; - }.${typeOf value}); in f; - default = {}; - }; + echo ${shell.escape git-script} \ + | ssh ${shell.escape "${target-user}@${target-host}"} -T + + unset tmpdir + trap ' + rm -f "$tmpdir"/* + rmdir "$tmpdir" + trap - EXIT INT QUIT + ' EXIT INT QUIT + tmpdir=$(mktemp -dt stockholm.XXXXXXXX) + chmod 0755 "$tmpdir" + + ${concatStringsSep "\n" + (mapAttrsToList + (name: spec: let dst = removePrefix "symlink:" (get-url spec); in + "verbose ln -s ${shell.escape dst} $tmpdir/${shell.escape name}") + symlink-specs)} + + verbose proot \ + -b $tmpdir:${shell.escape target-path} \ + ${concatStringsSep " \\\n " + (mapAttrsToList + (name: spec: + "-b ${shell.escape "${get-url spec}:${target-path}/${name}"}") + file-specs)} \ + rsync \ + -f ${shell.escape "P /*"} \ + ${concatMapStringsSep " \\\n " + (name: "-f ${shell.escape "R /${name}"}") + (attrNames file-specs)} \ + --delete \ + -vFrlptD \ + ${shell.escape target-path}/ \ + ${shell.escape "${target-user}@${target-host}:${target-path}"} + ''; + + get-schema = uri: + if substring 0 1 uri == "/" + then "file" + else head (splitString ":" uri); + + has-schema = schema: uri: get-schema uri == schema; + + get-url = spec: { + string = spec; + path = toString spec; + set = get-url spec.url; + }.${typeOf spec}; + + git-specs = + filterAttrs (_: spec: has-schema "https" (get-url spec)) source // + filterAttrs (_: spec: has-schema "http" (get-url spec)) source // + filterAttrs (_: spec: has-schema "git" (get-url spec)) source; + + file-specs = + filterAttrs (_: spec: has-schema "file" (get-url spec)) source; + + symlink-specs = + filterAttrs (_: spec: has-schema "symlink" (get-url spec)) source; + + git-script = '' + #! /bin/sh + set -efu + + verbose() { + printf '+%s\n' "$(printf ' %q' "$@")" >&2 + "$@" + } + + fetch_git() {( + dst_dir=$1 + src_url=$2 + src_ref=$3 + + if ! test -e "$dst_dir"; then + git clone "$src_url" "$dst_dir" + fi + + cd "$dst_dir" + + if ! url=$(git config remote.origin.url); then + git remote add origin "$src_url" + elif test "$url" != "$src_url"; then + git remote set-url origin "$src_url" + fi + + # TODO resolve src_ref to commit hash + hash=$src_ref + + if ! test "$(git log --format=%H -1)" = "$hash"; then + git fetch origin + git checkout "$hash" -- "$dst_dir" + git checkout "$hash" + fi + + git clean -dxf + )} + + ${concatStringsSep "\n" + (mapAttrsToList + (name: spec: toString (map shell.escape [ + "verbose" + "fetch_git" + "${target-path}/${name}" + spec.url + spec.rev + ])) + git-specs)} + ''; + in out; }; }; |