initial commit

.gitignore

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+# direnv
+.envrc
+.direnv
+
+# test d2
+*.d2
+
+# generated by d2
+*.svg
+
+# built
+result/

README.md

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+# *W*rapped _d2_
+
+A wrapper over [d2] which allows to use \`layout\`, \`theme\`, \`pad\`
+attributes from d2 file. All arguments will be passed to the d2 cli, but these
+additional configs overwrite cli arguments with the same name.
+
+[d2]: https://github.com/terrastruct/d2
+
+# Install
+
+## Nix Flake
+
+This repo is also packaged via Nix flakes, the language server binary package is
+available through the default flake output `github:pleshevskiy/wd2` with the
+path `bin/wd2`.
+
+You can enable flakes support in your nix configuration, and then run nix
+profile install `github:pleshevskiy/wd2` to get `wd2` installed. You can also
+use this repository as a flake input and add its output to your own
+flake-managed systemwide or home configuration.
+
+## Other
+
+Copy `wd2` script to `/usr/local/bin` folder.
+
+# Usage
+
+Create a d2 file with additional configs at the top.
+
+```d2
+# layout: elk
+# theme: 101
+# pad: 5
+
+x -> y -> z
+```
+
+Then run the `wd2` script
+
+```sh
+wd2 -w path/to/your/file.d2
+```

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1670827406,
+        "narHash": "sha256-nLNk7uiLbhbvb4TVz67XK7+Ezr1zcWYDWmNrWGmEUqA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ffca9ffaaafb38c8979068cee98b2644bd3f14cb",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1669261230,
+        "narHash": "sha256-AjddxRPd5y5jge77281P3O8+Cnafj842Xg59rwV4x+0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8e8b5f3b1e899bf5d250279578c0283705b8cdb4",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "tools": "tools"
+      }
+    },
+    "tools": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1670842919,
+        "narHash": "sha256-4SpFhzzGGg7yppVCZvx0rDdVScXc/m6rZe4BYnNoOQ4=",
+        "ref": "refs/heads/main",
+        "rev": "79301872e58bf199118ba163d95f54e6fbefcd75",
+        "revCount": 11,
+        "type": "git",
+        "url": "https://git.pleshevski.ru/mynix/tools"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.pleshevski.ru/mynix/tools"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    tools.url = "git+https://git.pleshevski.ru/mynix/tools";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, tools, ... }:
+    let
+      inherit (builtins) readFile;
+
+      mkWd2 = { writeShellApplication, symlinkJoin, d2, ... }:
+        writeShellApplication {
+          name = "wd2";
+          runtimeInputs = [ d2 ];
+          text = (readFile ./wd2);
+        };
+    in
+    {
+      overlays = {
+        default = final: prev: {
+          wd2 = prev.callPackage mkWd2 { };
+        };
+      };
+    } //
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        inherit (builtins) mapAttrs;
+        pkgs = import nixpkgs { inherit system; };
+
+        wd2 = pkgs.callPackage mkWd2 {
+          d2 = tools.packages.${system}.d2;
+        };
+
+        mkApp = drv: flake-utils.lib.mkApp { inherit drv; };
+        packages = {
+          inherit wd2;
+          default = wd2;
+        };
+      in
+      {
+        check = packages;
+
+        inherit packages;
+
+        apps = mapAttrs (name: mkApp) packages;
+      });
+}

result

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+/nix/store/paxh7dav8nq2s5lvijq192kz3p7jhgas-wd2

wd2

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+#! /usr/bin/env bash
+
+d2_args=( )
+d2_input_file=
+
+function print_help() {
+  cat <<EOF
+Usage:
+  wd2 [FLAGS...] file.d2 [file.svg | file.png]
+
+A wrapper over d2 which allows to use \`layout\`, \`theme\`, \`pad\`
+attributes from d2 file. All arguments will be passed to the d2 cli,
+but these additional configs overwrite cli arguments with the
+same name.
+
+See \`d2 --help\` or \`man d2\` for detailed docs.
+
+See more docs and the source code at https://oss.terrastruct.com/d2
+EOF
+}
+
+
+function parse_args() {
+  if [ "$#" == "0" ]; then
+    print_help
+    exit 1
+  fi
+
+  while (( "$#" )); do
+    case "$1" in
+      --help)
+        print_help
+        exit 0
+        ;;
+      # extract input file arg
+      *.d2)
+        d2_input_file="$1"
+        d2_args+=( "$1" )
+        ;;
+      # other args
+      *)
+        d2_args+=( "$1" )
+        ;;
+    esac
+
+    shift
+  done
+}
+
+function get_attr_value() {
+  head -n3 "$d2_input_file" | grep "$1" | awk '{ print $3 }'
+}
+
+parse_args "$@"
+
+if [ -z "$d2_input_file" ]; then
+  print_help
+  exit 1
+fi
+
+d2_layout=$(get_attr_value "layout")
+d2_theme=$(get_attr_value "theme")
+d2_pad=$(get_attr_value "pad")
+
+d2 "${d2_args[@]}" \
+  ${d2_layout:+--layout ${d2_layout}} \
+  ${d2_theme:+--theme ${d2_theme}} \
+  ${d2_pad:+--pad ${d2_pad}}
+