reverse-skills-max: initial public release (restored, redacted, hardened)
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baradok609hecl1pq6qi
165
vendor-new/rev-skills/lib/skill-examples.mjs
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165
vendor-new/rev-skills/lib/skill-examples.mjs
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// lib/skill-examples.mjs — 技能里的示例代码块：抽取与语法检查
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//
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// 定位：validate.mjs 只校验结构，不执行示例。本模块补上"示例至少语法正确"这一层——
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// 它抓不到"命令过期"，但能抓到"照抄会立刻报错"（如把 0x4011xx 写进 python）。
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//
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// 依赖说明：python / shell 语法检查需要对应解释器；缺失时**跳过而非失败**，
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// 因此本检查是 opt-in（npm run examples），不进 npm test 的默认路径。
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import { readFileSync, readdirSync, existsSync } from 'node:fs';
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import { join, relative } from 'node:path';
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import { execFileSync } from 'node:child_process';
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const FENCE = /^```([A-Za-z0-9_+.-]*)\s*$/;
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const PY_TAGS = new Set(['python', 'py', 'python3']);
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const SH_TAGS = new Set(['sh', 'bash', 'console', 'shell', 'zsh']);
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/** 抽取全部技能里的代码块 */
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export function collectExamples(skillsDir) {
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const out = [];
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for (const skill of readdirSync(skillsDir, { withFileTypes: true })) {
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if (!skill.isDirectory() || !skill.name.startsWith('re-')) continue;
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walk(join(skillsDir, skill.name), skill.name, skillsDir, out);
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}
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return out;
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}
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function walk(dir, skill, skillsDir, out) {
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for (const e of readdirSync(dir, { withFileTypes: true })) {
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const p = join(dir, e.name);
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if (e.isDirectory()) { walk(p, skill, skillsDir, out); continue; }
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if (!e.name.endsWith('.md')) continue;
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const lines = readFileSync(p, 'utf8').split('\n');
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let inBlock = false, tag = '', start = 0, buf = [];
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for (let i = 0; i < lines.length; i++) {
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const m = FENCE.exec(lines[i].trim());
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if (m) {
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if (!inBlock) { inBlock = true; tag = m[1].toLowerCase(); start = i + 2; buf = []; }
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else {
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out.push({ skill, file: relative(skillsDir, p), line: start, tag, body: buf.join('\n') });
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inBlock = false;
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}
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continue;
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}
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if (inBlock) buf.push(lines[i]);
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}
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}
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}
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/** 去公共缩进（技能里的块常缩进在列表项下） */
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export function dedent(text) {
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const lines = text.split('\n');
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const indents = lines.filter((l) => l.trim()).map((l) => l.match(/^[ \t]*/)[0].length);
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const min = indents.length ? Math.min(...indents) : 0;
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return lines.map((l) => l.slice(min)).join('\n');
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}
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// 调试器/解释器交互提示符
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const DBG_PROMPT = /^\s*\((gdb|rr|lldb|jdb|pdb|gef|pwndbg|python3?)\)/;
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// 交互式工具的启动行——配合 `> ` 行可判定整块是会话记录
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const INTERACTIVE = /^(jdb|gdb|lldb|rr|jshell|frida|node|python3?)\b/;
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/** 拆出 heredoc：返回 { shell, heredocs: [{lang, body}] }，heredoc 体不属于 shell 语法 */
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export function splitHeredocs(text) {
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const lines = dedent(text).split('\n');
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const shell = [];
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const heredocs = [];
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let pending = null; // { delim, lang, buf }
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for (const raw of lines) {
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const line = raw.trim();
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if (pending) {
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if (line === pending.delim) { heredocs.push({ lang: pending.lang, body: pending.buf.join('\n') }); pending = null; }
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else pending.buf.push(raw);
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continue;
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}
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const hd = /<<-?\s*'?"?([A-Za-z_][A-Za-z0-9_]*)'?"?/.exec(line);
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if (hd) {
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const delim = hd[1];
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// 语言线索：喂给解释器的 heredoc 才按对应语言检查
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const lang = /\bpython3?\b/.test(line) ? 'python'
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: /\bnode\b/.test(line) ? 'js'
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: null;
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pending = { delim, lang, buf: [] };
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shell.push(`: <<'${delim}'`); // 用空操作占位，保持行数对齐
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continue;
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}
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shell.push(raw);
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}
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if (pending) heredocs.push({ lang: pending.lang, body: pending.buf.join('\n') });
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return { shell: shell.join('\n'), heredocs };
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}
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/**
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* shell 规范化：去缩进 → 拆 heredoc → 会话记录处理 → 占位符中和
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* - **会话记录块**（有调试器提示符，或有交互式工具启动行 + `> ` 命令）：丢弃提示符行
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* - 占位符中和：`<pid>`、`<BundleID 或 App 名>` 会被 shell 当成重定向
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*/
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export function normalizeShell(body) {
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const { shell } = splitHeredocs(body);
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const raw = shell.split('\n').map((l) => l.trim());
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const firstCmd = raw.find((l) => l && !l.startsWith('#'));
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const isTranscript = raw.some((l) => DBG_PROMPT.test(l))
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|| (raw.some((l) => /^>\s/.test(l)) && INTERACTIVE.test(firstCmd ?? ''));
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return raw
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.filter((l) => (isTranscript ? !DBG_PROMPT.test(l) && !/^>\s/.test(l) : true))
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.map((l) => l.replace(DBG_PROMPT, '').replace(/^[$>]\s+/, ''))
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.join('\n')
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.replace(/<[^<>]*>/g, 'PLACEHOLDER');
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}
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function has(bin) {
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try { execFileSync('sh', ['-c', `command -v ${bin}`], { stdio: 'ignore' }); return true; }
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catch { return false; }
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}
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export function available() {
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return { python: has('python3'), shell: has('bash') };
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}
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/** 逐块语法检查；返回 {checked, errors:[{file,line,tag,msg}], skipped} */
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export function checkExamples(skillsDir, { interpreters = available() } = {}) {
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const blocks = collectExamples(skillsDir);
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const errors = [];
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let checked = 0;
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const skipped = [];
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for (const b of blocks) {
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const isPy = PY_TAGS.has(b.tag);
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const isSh = SH_TAGS.has(b.tag);
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if (!isPy && !isSh) continue;
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if (isPy) {
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if (!interpreters.python) { skipped.push('python（未找到 python3）'); continue; }
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checked++;
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try {
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execFileSync('python3', ['-c', 'import sys; compile(sys.stdin.read(), "<block>", "exec")'],
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{ input: dedent(b.body), stdio: ['pipe', 'ignore', 'pipe'] });
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} catch (e) {
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const msg = (e.stderr?.toString() ?? String(e)).trim().split('\n').pop();
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errors.push({ ...pick(b), msg });
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}
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} else {
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if (!interpreters.shell) { skipped.push('shell（未找到 bash）'); continue; }
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checked++;
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try {
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execFileSync('bash', ['-n'], { input: normalizeShell(b.body), stdio: ['pipe', 'ignore', 'pipe'] });
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} catch (e) {
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const msg = (e.stderr?.toString() ?? String(e)).trim().split('\n').pop();
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errors.push({ ...pick(b), msg });
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}
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// sh 块里嵌的 python heredoc 单独按 python 检查（`python3 - <<'PY'` 在技能里很常见）
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for (const hd of splitHeredocs(b.body).heredocs) {
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if (hd.lang !== 'python') continue;
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if (!interpreters.python) { skipped.push('heredoc python（未找到 python3）'); continue; }
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checked++;
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try {
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execFileSync('python3', ['-c', 'import sys; compile(sys.stdin.read(), "<heredoc>", "exec")'],
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{ input: hd.body, stdio: ['pipe', 'ignore', 'pipe'] });
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} catch (e) {
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const msg = (e.stderr?.toString() ?? String(e)).trim().split('\n').pop();
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errors.push({ ...pick(b), msg: `heredoc: ${msg}` });
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}
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}
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}
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}
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return { checked, errors, skipped: [...new Set(skipped)], total: blocks.length };
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}
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const pick = (b) => ({ skill: b.skill, file: b.file, line: b.line, tag: b.tag });
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