144 lines
3.2 KiB
Nix
144 lines
3.2 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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inherit (lib)
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attrNames
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concatMapStringsSep
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concatStringsSep
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getExe
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getExe'
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mapAttrsToList
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mkOption
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optionalString
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;
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inherit (lib.types)
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attrsOf
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bool
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enum
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path
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str
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;
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cfg = config;
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generate =
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name: value:
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pkgs.callPackage (
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{
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runCommand,
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remarshal,
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action-validator,
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}:
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runCommand "${name}.yaml"
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{
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nativeBuildInputs = [
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action-validator
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remarshal
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];
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value = builtins.toJSON value;
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passAsFile = [ "value" ];
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preferLocalBuild = true;
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}
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''
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json2yaml "$valuePath" "$out"
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# Check that the workflow is valid
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cd "${cfg.rootSrc}" && action-validator "$out"
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''
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) { };
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install =
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name: value:
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let
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result = generate name value;
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path = ".${cfg.platform}/workflows/${name}.yaml";
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in
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''
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if [ ! -f "$GIT_WC/${path}" ] || ! ${getExe' pkgs.diffutils "cmp"} -s "$GIT_WC/${path}" ${result} ; then
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# Copy the updated workflow definition
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cp --no-preserve=mode,ownership ${result} "$GIT_WC/${path}" && echo "nix-actions: Updated ${name}.yaml"
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fi
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'';
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in
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{
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options = {
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platform = mkOption {
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type = enum [
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"forgejo"
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"gitea"
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"github"
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];
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default = "forgejo";
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description = ''
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The platform where the workflows will run.
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This will induce the directory in which the yaml files are installed.
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'';
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};
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workflows = mkOption {
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type = attrsOf (pkgs.formats.yaml { }).type;
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description = ''
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Set of workflows to install.
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'';
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};
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installationScript = mkOption {
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type = str;
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description = ''
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A bash snippet that installs the workflows files in the current project.
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'';
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readOnly = true;
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};
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removeUnknown = mkOption {
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type = bool;
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default = true;
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description = ''
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Whether to remove unknown workflow files.
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'';
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};
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rootSrc = mkOption {
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type = path;
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description = ''
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The source of the project.
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'';
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};
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};
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config = {
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installationScript = ''
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if ! type -t git >/dev/null; then
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# This happens in pure shells, including lorri
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echo 1>&2 "WARNING: nix-actions: git command not found; skipping installation."
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elif ! git rev-parse --git-dir &> /dev/null; then
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echo 1>&2 "WARNING: nix-actions: .git not found; skipping installation."
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else
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GIT_WC=`git rev-parse --show-toplevel`
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# Ensure that the directory exists
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mkdir -p "$GIT_WC/.${cfg.platform}/workflows"
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# Install the workflow files
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${concatStringsSep "\n" (mapAttrsToList install cfg.workflows)}
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${optionalString cfg.removeUnknown ''
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# Remove unknown workflow files
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for file in $(ls "$GIT_WC/.${cfg.platform}/workflows" | ${getExe pkgs.gnugrep} -v '\(${
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concatMapStringsSep "\\|" (name: "${name}.yaml") (attrNames cfg.workflows)
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}\)'); do
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rm "$GIT_WC/.${cfg.platform}/workflows/$file" && echo "nix-actions: Removed $file"
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done
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''}
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fi
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'';
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};
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}
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