nixpkgs-suyu/maintainers/scripts/update.nix
Jan Tojnar c3dd31f177
maintainers/scripts/update.nix: handle null paths
Previously we did not handle non-existant paths making the program crash.
Let’s show a proper error.
2019-06-02 09:03:41 +02:00

149 lines
4.7 KiB
Nix
Executable file

{ package ? null
, maintainer ? null
, path ? null
, max-workers ? null
, keep-going ? null
}:
# TODO: add assert statements
let
/* Remove duplicate elements from the list based on some extracted value. O(n^2) complexity.
*/
nubOn = f: list:
if list == [] then
[]
else
let
x = pkgs.lib.head list;
xs = pkgs.lib.filter (p: f x != f p) (pkgs.lib.drop 1 list);
in
[x] ++ nubOn f xs;
pkgs = import ./../../default.nix {
overlays = [];
};
packagesWith = cond: return: set:
nubOn (pkg: pkg.updateScript)
(pkgs.lib.flatten
(pkgs.lib.mapAttrsToList
(name: pkg:
let
result = builtins.tryEval (
if pkgs.lib.isDerivation pkg && cond name pkg
then [(return name pkg)]
else if pkg.recurseForDerivations or false || pkg.recurseForRelease or false
then packagesWith cond return pkg
else []
);
in
if result.success then result.value
else []
)
set
)
);
packagesWithUpdateScriptAndMaintainer = maintainer':
let
maintainer =
if ! builtins.hasAttr maintainer' pkgs.lib.maintainers then
builtins.throw "Maintainer with name `${maintainer'} does not exist in `maintainers/maintainer-list.nix`."
else
builtins.getAttr maintainer' pkgs.lib.maintainers;
in
packagesWith (name: pkg: builtins.hasAttr "updateScript" pkg &&
(if builtins.hasAttr "maintainers" pkg.meta
then (if builtins.isList pkg.meta.maintainers
then builtins.elem maintainer pkg.meta.maintainers
else maintainer == pkg.meta.maintainers
)
else false
)
)
(name: pkg: pkg)
pkgs;
packagesWithUpdateScript = path:
let
attrSet = pkgs.lib.attrByPath (pkgs.lib.splitString "." path) null pkgs;
in
if attrSet == null then
builtins.throw "Attribute path `${path}` does not exists."
else
packagesWith (name: pkg: builtins.hasAttr "updateScript" pkg)
(name: pkg: pkg)
attrSet;
packageByName = name:
let
package = pkgs.lib.attrByPath (pkgs.lib.splitString "." name) null pkgs;
in
if package == null then
builtins.throw "Package with an attribute name `${name}` does not exists."
else if ! builtins.hasAttr "updateScript" package then
builtins.throw "Package with an attribute name `${name}` does not have a `passthru.updateScript` attribute defined."
else
package;
packages =
if package != null then
[ (packageByName package) ]
else if maintainer != null then
packagesWithUpdateScriptAndMaintainer maintainer
else if path != null then
packagesWithUpdateScript path
else
builtins.throw "No arguments provided.\n\n${helpText}";
helpText = ''
Please run:
% nix-shell maintainers/scripts/update.nix --argstr maintainer garbas
to run all update scripts for all packages that lists \`garbas\` as a maintainer
and have \`updateScript\` defined, or:
% nix-shell maintainers/scripts/update.nix --argstr package garbas
to run update script for specific package, or
% nix-shell maintainers/scripts/update.nix --argstr path gnome3
to run update script for all package under an attribute path.
You can also add
--argstr max-workers 8
to increase the number of jobs in parallel, or
--argstr keep-going true
to continue running when a single update fails.
'';
packageData = package: {
name = package.name;
pname = (builtins.parseDrvName package.name).name;
updateScript = map builtins.toString (pkgs.lib.toList package.updateScript);
};
in pkgs.stdenv.mkDerivation {
name = "nixpkgs-update-script";
buildCommand = ''
echo ""
echo "----------------------------------------------------------------"
echo ""
echo "Not possible to update packages using \`nix-build\`"
echo ""
echo "${helpText}"
echo "----------------------------------------------------------------"
exit 1
'';
shellHook = ''
unset shellHook # do not contaminate nested shells
exec ${pkgs.python3.interpreter} ${./update.py} ${pkgs.writeText "packages.json" (builtins.toJSON (map packageData packages))}${pkgs.lib.optionalString (max-workers != null) " --max-workers=${max-workers}"}${pkgs.lib.optionalString (keep-going == "true") " --keep-going"}
'';
}