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-rw-r--r--krebs/3modules/build.nix218
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;
};
};