move some scripts from 'build' to 'tools' directory, misc refactors (#29844)

- Move some scripts from `build` to new `tools` dir. Eventually i would
like to move all but let's do it step-by-step.
- Add dir to eslint and move the files into vars.
- Update docs accordingly.
- While updating docs I noticed we were incorrectly having `public/img`
path still in a few places. Replace those with the current
`public/assets/img`.

---------

Co-authored-by: Nanguan Lin <nanguanlin6@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>
(cherry picked from commit 095fdd691dd1a7d7748372cc73e7708278c80933)

3 files changed, 0 insertions, 157 deletions

diff --git a/build/generate-images.js b/build/generate-images.js
deleted file mode 100755
index db31d19e2a..0000000000
--- a/build/generate-images.js
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/usr/bin/env node
-import imageminZopfli from 'imagemin-zopfli';
-import {optimize} from 'svgo';
-import {loadSVGFromString, Canvas, Rect, util} from 'fabric/node';
-import {readFile, writeFile} from 'node:fs/promises';
-import {argv, exit} from 'node:process';
-
-function doExit(err) {
-  if (err) console.error(err);
-  exit(err ? 1 : 0);
-}
-
-async function generate(svg, path, {size, bg}) {
-  const outputFile = new URL(path, import.meta.url);
-
-  if (String(outputFile).endsWith('.svg')) {
-    const {data} = optimize(svg, {
-      plugins: [
-        'preset-default',
-        'removeDimensions',
-        {
-          name: 'addAttributesToSVGElement',
-          params: {attributes: [{width: size}, {height: size}]}
-        },
-      ],
-    });
-    await writeFile(outputFile, data);
-    return;
-  }
-
-  const {objects, options} = await loadSVGFromString(svg);
-  const canvas = new Canvas();
-  canvas.setDimensions({width: size, height: size});
-  const ctx = canvas.getContext('2d');
-  ctx.scale(options.width ? (size / options.width) : 1, options.height ? (size / options.height) : 1);
-
-  if (bg) {
-    canvas.add(new Rect({
-      left: 0,
-      top: 0,
-      height: size * (1 / (size / options.height)),
-      width: size * (1 / (size / options.width)),
-      fill: 'white',
-    }));
-  }
-
-  canvas.add(util.groupSVGElements(objects, options));
-  canvas.renderAll();
-
-  let png = Buffer.from([]);
-  for await (const chunk of canvas.createPNGStream()) {
-    png = Buffer.concat([png, chunk]);
-  }
-
-  png = await imageminZopfli({more: true})(png);
-  await writeFile(outputFile, png);
-}
-
-async function main() {
-  const gitea = argv.slice(2).includes('gitea');
-  const logoSvg = await readFile(new URL('../assets/logo.svg', import.meta.url), 'utf8');
-  const faviconSvg = await readFile(new URL('../assets/favicon.svg', import.meta.url), 'utf8');
-
-  await Promise.all([
-    generate(logoSvg, '../public/assets/img/logo.svg', {size: 32}),
-    generate(logoSvg, '../public/assets/img/logo.png', {size: 512}),
-    generate(faviconSvg, '../public/assets/img/favicon.svg', {size: 32}),
-    generate(faviconSvg, '../public/assets/img/favicon.png', {size: 180}),
-    generate(logoSvg, '../public/assets/img/avatar_default.png', {size: 200}),
-    generate(logoSvg, '../public/assets/img/apple-touch-icon.png', {size: 180, bg: true}),
-    gitea && generate(logoSvg, '../public/assets/img/gitea.svg', {size: 32}),
-  ]);
-}
-
-try {
-  doExit(await main());
-} catch (err) {
-  doExit(err);
-}
diff --git a/build/generate-svg.js b/build/generate-svg.js
deleted file mode 100755
index 660ac9157e..0000000000
--- a/build/generate-svg.js
+++ /dev/null
@@ -1,70 +0,0 @@
-#!/usr/bin/env node
-import fastGlob from 'fast-glob';
-import {optimize} from 'svgo';
-import {parse} from 'node:path';
-import {readFile, writeFile, mkdir} from 'node:fs/promises';
-import {fileURLToPath} from 'node:url';
-import {exit} from 'node:process';
-
-const glob = (pattern) => fastGlob.sync(pattern, {
-  cwd: fileURLToPath(new URL('..', import.meta.url)),
-  absolute: true,
-});
-
-function doExit(err) {
-  if (err) console.error(err);
-  exit(err ? 1 : 0);
-}
-
-async function processFile(file, {prefix, fullName} = {}) {
-  let name;
-  if (fullName) {
-    name = fullName;
-  } else {
-    name = parse(file).name;
-    if (prefix) name = `${prefix}-${name}`;
-    if (prefix === 'octicon') name = name.replace(/-[0-9]+$/, ''); // chop of '-16' on octicons
-  }
-
-  // Set the `xmlns` attribute so that the files are displayable in standalone documents
-  // The svg backend module will strip the attribute during startup for inline display
-  const {data} = optimize(await readFile(file, 'utf8'), {
-    plugins: [
-      {name: 'preset-default'},
-      {name: 'removeDimensions'},
-      {name: 'prefixIds', params: {prefix: () => name}},
-      {name: 'addClassesToSVGElement', params: {classNames: ['svg', name]}},
-      {
-        name: 'addAttributesToSVGElement', params: {
-          attributes: [
-            {'xmlns': 'http://www.w3.org/2000/svg'},
-            {'width': '16'}, {'height': '16'}, {'aria-hidden': 'true'},
-          ]
-        }
-      },
-    ],
-  });
-
-  await writeFile(fileURLToPath(new URL(`../public/assets/img/svg/${name}.svg`, import.meta.url)), data);
-}
-
-function processFiles(pattern, opts) {
-  return glob(pattern).map((file) => processFile(file, opts));
-}
-
-async function main() {
-  try {
-    await mkdir(fileURLToPath(new URL('../public/assets/img/svg', import.meta.url)), {recursive: true});
-  } catch {}
-
-  await Promise.all([
-    ...processFiles('node_modules/@primer/octicons/build/svg/*-16.svg', {prefix: 'octicon'}),
-    ...processFiles('web_src/svg/*.svg'),
-  ]);
-}
-
-try {
-  doExit(await main());
-} catch (err) {
-  doExit(err);
-}
diff --git a/build/watch.sh b/build/watch.sh
deleted file mode 100644
index 5e8defa49c..0000000000
--- a/build/watch.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-set -euo pipefail
-
-make --no-print-directory watch-frontend &
-make --no-print-directory watch-backend &
-
-trap 'kill $(jobs -p)' EXIT
-wait