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|
{
config,
lib,
pkgs,
...
}: let
cfg = config.reposync;
stowType = lib.types.submodule (
{name, ...}: {
options = {
enable = lib.mkEnableOption "call stow for this target stow command";
targetPrefix = lib.mkOption {
type = lib.types.path;
default = config.home.homeDirectory;
description = "absolute prefix for the stow target";
};
target = lib.mkOption {
type = lib.types.str;
default = ".";
description = "path to stow target relative to targetPrefix (home directory by default)";
};
packages = lib.mkOption {
type = lib.types.str;
default = name;
defaultText = "<name>";
example = "vim zsh";
description = "packages to stow from repository. use '.' to automatically stow all";
};
};
config = {
enable = lib.mkDefault true;
};
}
);
outOfStoreGitRepositoryType = lib.types.submodule (
{
name,
config,
...
}: {
options = {
enable = lib.mkEnableOption "whether to download this repository";
server = lib.mkOption {
type = lib.types.str;
default = "https://github.com/";
example = "git@github.com:";
description = "git server suffixed with the repo delimiter (e.g. '/' or ':')";
};
repository = lib.mkOption {
type = lib.types.str;
default = name;
defaultText = "<name>";
example = "nix-community/home-manager";
description = "git repository url";
};
# TODO test to add this remote feature
#remotes = lib.mkOption {
# type = lib.types.attrsOf lib.types.str;
# default = {};
# example = {
# fork = "https://github.com/tjkeller-xyz/home-manager.git";
# };
# description = "alternative remotes to the git repository";
#};
#defaultRemote = lib.mkOption {
# type = lib.types.nullOr lib.types.str;
# default = null;
# example = "fork";
# description = "default remote to use";
#};
#branch = lib.mkOption {
# type = lib.types.nullOr lib.types.str;
# default = null;
# example = "master";
# description = "pull from this branch. set to null for default branch";
#};
targetPrefix = lib.mkOption {
type = lib.types.path;
default = config.home.homeDirectory;
description = "absolute prefix for the git repository path";
};
target = lib.mkOption {
type = lib.types.str;
default = name;
defaultText = "<name>";
description = "path to git repository relative to targetPrefix (home directory by default)";
};
stow = lib.mkOption {
type = lib.types.attrsOf stowType;
default = {};
description = "stow packages from the repository";
};
extraCloneOptions = lib.mkOption {
type = lib.types.str;
default = "";
example = "--recurse-submodules";
description = "extra command flags to add to git clone";
};
extraPullOptions = lib.mkOption {
type = lib.types.str;
default = "";
example = "--recurse-submodules";
description = "extra command flags to add to git pull";
};
extraCommands = lib.mkOption {
type = lib.types.str;
default = "";
description = ''
extra commands to run each time repo is synced.
IMPORANT: all commands should be idempotent to prevent breaking
after repeated syncs.
like `home.activation` scripts, extra commands should respect the
DRY_RUN environment variable and use $VERBOSE_ARG in case the
verbose flag is set.
commands can be prefixed with `run` to automatically respect the
DRY_RUN function.
'';
};
generatedCalls = lib.mkOption {
type = lib.types.listOf lib.types.str;
readOnly = true;
description = "generated calls for reposync.sh script";
};
};
config = let
# generate calls
callClone = url: target: flags: ''clonemissing "${url}" "${target}" "${flags}"'';
callPull = target: flags: ''pull "${target}" "${flags}"'';
callRemoteAdd = target: remote: url: ''remoteadd "${target}" "${remote}" "${url}"'';
callStowRepo = dir: target: packages: ''stowrepo "${dir}" "${target}" "${packages}"'';
# misc
stowToCalls = s: callStowRepo target (combineTarget s.targetPrefix s.target) s.packages;
combineTarget = prefix: target: prefix + "/" + target;
target = combineTarget config.targetPrefix config.target;
url = config.server + config.repository;
in {
enable = lib.mkDefault true;
generatedCalls = lib.lists.flatten [
(callClone url target config.extraCloneOptions)
(callPull target config.extraPullOptions)
#(lib.mapAttrsToList (name: url: callRemoteAdd name url) config.remotes)
(lib.mapAttrsToList (name: s: lib.mkIf s.enable (stowToCalls s)) config.stow)
config.extraCommands
];
};
}
);
in {
options.reposync = {
enable = lib.mkEnableOption "generate and install reposync script";
outOfStoreGitRepository = lib.mkOption {
type = lib.types.attrsOf outOfStoreGitRepositoryType;
default = {};
description = "imperative git repositories to be cloned";
};
};
config = let
repocfg = cfg.outOfStoreGitRepository;
lines = lineslist: lib.strings.concatStringsSep "\n" lineslist;
fname = name: ''_sync-${name}'';
wrapRepoCalls = name: r: ''
function ${fname name}() {
echo "Syncing repository '${name}'"
${lines r.generatedCalls}
echo "Done"
}
'';
allRepoCallFuncs = lines (lib.mapAttrsToList (name: r: wrapRepoCalls name r) repocfg);
syncAllFunc = ''
function all() {
${lines (lib.mapAttrsToList (name: r: fname name) repocfg)}
}
'';
argCases = ''
${lines (lib.mapAttrsToList (name: r: "${name}) ${fname name} ;;") repocfg)}
-a|--all) all ;;
'';
src = pkgs.writeShellScriptBin "reposync" ''
export PATH="${pkgs.git}/bin:$PATH"
export PATH="${pkgs.stow}/bin:$PATH"
${builtins.readFile ./reposync-functions.sh}
${allRepoCallFuncs}
${syncAllFunc}
for arg in "$@"; do
case "$arg" in
${argCases}
esac
done
'';
hm-reposync = pkgs.stdenv.mkDerivation rec {
name = "hm-reposync";
inherit src;
dontUnpack = true;
buildInputs = with pkgs; [git stow];
installPhase = ''
mkdir -p $out/bin
cp $src/bin/reposync $out/bin
chmod +x $out/bin/reposync
'';
};
in lib.mkIf cfg.enable {
home.packages = [hm-reposync];
};
}
# vim: set ts=2 sw=2 et:
|
