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import type { Plugin, PluginOption } from "vite";
import { svelte } from "@sveltejs/vite-plugin-svelte";
import preprocess from "svelte-preprocess";
import { join } from "path";
import { type ComponentConfig } from "./dev";
import type { Preprocessor, PreprocessorGroup } from "svelte/compiler";
import { deepmerge } from "./_deepmerge_internal";
const svelte_codes_to_ignore: Record<string, string> = {
"reactive-component": "Icon"
};
const RE_SVELTE_IMPORT =
/import\s+(?:([ -~]*)\s+from\s+){0,1}['"](svelte(?:\/[ -~]+){0,3})['"]/g;
// const RE_BARE_SVELTE_IMPORT = /import ("|')svelte(\/\w+)*("|')(;)*/g;
export function plugins(config: ComponentConfig): PluginOption[] {
const _additional_plugins = config.plugins || [];
const _additional_svelte_preprocess = config.svelte?.preprocess || [];
const _svelte_extensions = (config.svelte?.extensions || [".svelte"]).map(
(ext) => {
if (ext.trim().startsWith(".")) {
return ext;
}
return `.${ext.trim()}`;
}
);
if (!_svelte_extensions.includes(".svelte")) {
_svelte_extensions.push(".svelte");
}
return [
svelte({
inspector: false,
onwarn(warning, handler) {
if (
svelte_codes_to_ignore.hasOwnProperty(warning.code) &&
svelte_codes_to_ignore[warning.code] &&
warning.message.includes(svelte_codes_to_ignore[warning.code])
) {
return;
}
handler!(warning);
},
prebundleSvelteLibraries: false,
compilerOptions: {
discloseVersion: false,
hmr: true
},
extensions: _svelte_extensions,
preprocess: [
preprocess({
typescript: {
compilerOptions: {
declaration: false,
declarationMap: false
}
}
}),
...(_additional_svelte_preprocess as PreprocessorGroup[])
]
}),
..._additional_plugins
];
}
interface GradioPluginOptions {
mode: "dev" | "build";
svelte_dir: string;
backend_port?: number;
imports?: string;
}
export function make_gradio_plugin({
mode,
svelte_dir,
backend_port,
imports
}: GradioPluginOptions): Plugin {
const v_id = "virtual:component-loader";
const resolved_v_id = "\0" + v_id;
return {
name: "gradio",
enforce: "pre",
resolveId(id) {
if (id === v_id) {
return resolved_v_id;
}
if (id === "svelte") {
return {
id: `../../../../../assets/svelte/svelte_svelte.js`,
external: true
};
}
if (id.startsWith("svelte/")) {
const subpath = id.slice("svelte/".length);
return {
id: `../../../../../assets/svelte/svelte_${subpath.replace(/\//g, "_")}.js`,
external: true
};
}
},
load(id) {
if (id === resolved_v_id) {
return `export default {};`;
}
},
transformIndexHtml(html) {
return mode === "dev"
? [
{
tag: "script",
children: `window.__GRADIO_DEV__ = "dev";
window.__GRADIO__SERVER_PORT__ = ${backend_port};
window.__GRADIO__CC__ = ${imports};`
}
]
: undefined;
}
};
}
export const deepmerge_plugin: Plugin = {
name: "deepmerge",
enforce: "pre",
resolveId(id) {
if (id === "deepmerge") {
return "deepmerge_internal";
}
},
load(id) {
if (id === "deepmerge_internal") {
return deepmerge;
}
}
};
function extract_types(str: string): string[] {
const regex = /type (\w+\b)/g;
let m;
const out = [];
while ((m = regex.exec(str))) out.push(m[1]);
return out;
}
function remove_types(input: string): string {
const inner = input.slice(1, -1); // remove { }
const parts = inner
.split(",")
.map((s) => s.trim())
.filter((s) => s && !/^type\s+\w+\b$/.test(s));
return `{ ${parts.join(", ")} }`;
}
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