ci: add release workflow + rcedit devdep, fix patch_icon3 for CI

patch_icon3.js

@@ -0,0 +1,110 @@
+'use strict'
+const { spawnSync } = require('child_process')
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
+
+const EXE   = path.resolve(__dirname, 'dist', 'bm.exe')
+const CLEAN = fs.existsSync(path.resolve(__dirname, 'dist', 'bm_clean.exe'))
+  ? path.resolve(__dirname, 'dist', 'bm_clean.exe')
+  : EXE
+const ICON  = path.resolve(__dirname, 'icon.ico')
+
+function findRcedit() {
+  const candidates = [
+    path.join(os.homedir(), 'AppData', 'Roaming', 'npm', 'node_modules', 'rcedit', 'bin', 'rcedit-x64.exe'),
+  ]
+  try {
+    const pkgDir = path.dirname(require.resolve('rcedit/package.json'))
+    candidates.unshift(path.join(pkgDir, 'bin', 'rcedit-x64.exe'))
+  } catch {}
+  const fromPath = spawnSync('where', ['rcedit-x64.exe'], { encoding: 'utf8' })
+  if (fromPath.stdout) candidates.unshift(fromPath.stdout.trim().split('\n')[0])
+  return candidates.find(p => { try { return fs.statSync(p).isFile() } catch { return false } })
+}
+
+const RCEDIT = findRcedit()
+if (!RCEDIT) { console.error('rcedit not found'); process.exit(1) }
+console.log('rcedit:', RCEDIT)
+
+if (CLEAN === EXE) {
+  const tmp = EXE.replace('.exe', '_clean.exe')
+  fs.copyFileSync(EXE, tmp)
+}
+
+const cleanPath = CLEAN === EXE ? EXE.replace('.exe', '_clean.exe') : CLEAN
+const origBuf = fs.readFileSync(cleanPath)
+
+// Find pkg position values
+const kbuf = Buffer.from("var PAYLOAD_POSITION = '", 'ascii')
+let pos = {}
+for (let i = 0; i < origBuf.length - 200; i++) {
+  if (origBuf.slice(i, i + kbuf.length).equals(kbuf)) {
+    const block = origBuf.slice(i, i + 400).toString('ascii')
+    const pp = block.match(/PAYLOAD_POSITION = '(\d+)\s*'/)
+    const ps = block.match(/PAYLOAD_SIZE = '(\d+)\s*'/)
+    const pp2 = block.match(/PRELUDE_POSITION = '(\d+)\s*'/)
+    const ps2 = block.match(/PRELUDE_SIZE = '(\d+)\s*'/)
+    if (pp) {
+      pos = {
+        PAYLOAD_POSITION: +pp[1],
+        PAYLOAD_SIZE: +ps[1],
+        PRELUDE_POSITION: +pp2[1],
+        PRELUDE_SIZE: +ps2[1],
+      }
+      console.log('pkg vars:', pos)
+      break
+    }
+  }
+}
+
+if (!pos.PAYLOAD_POSITION) { console.error('vars not found'); process.exit(1) }
+
+const cleanBuf = origBuf
+const overlay = cleanBuf.slice(pos.PAYLOAD_POSITION)
+const peOnly = cleanBuf.slice(0, pos.PAYLOAD_POSITION)
+console.log(`overlay: ${overlay.length}b, PE: ${peOnly.length}b`)
+
+fs.writeFileSync(EXE, peOnly)
+
+console.log('rcedit...')
+const r = spawnSync(RCEDIT, [EXE, '--set-icon', ICON], { stdio: 'inherit' })
+if (r.status !== 0) { process.exit(1) }
+
+const patchedPE = fs.readFileSync(EXE)
+const newPP = patchedPE.length
+const newPRP = newPP + pos.PAYLOAD_SIZE
+console.log(`new PE: ${patchedPE.length}  new PP: ${newPP}  new PRP: ${newPRP}`)
+
+const full = Buffer.from(Buffer.concat([patchedPE, overlay]))
+
+function replaceNum(buf, oldVal, newVal) {
+  const oldStr = String(oldVal)
+  const newStr = String(newVal)
+  const needle = Buffer.from(`'${oldStr}`, 'ascii')
+  let count = 0
+  let i = 0
+  while ((i = buf.indexOf(needle, i)) !== -1) {
+    let end = i + 1
+    while (buf[end] !== 0x27 && end < i + 30) end++
+    const fieldLen = end - i - 1
+    if (fieldLen < oldStr.length) { i++; continue }
+    const padded = newStr + ' '.repeat(fieldLen - newStr.length)
+    buf.write(padded, i + 1, 'ascii')
+    console.log(`  patched '${oldStr}' → '${newStr}' at offset ${i}`)
+    count++
+    i = end
+  }
+  return count
+}
+
+let total = 0
+total += replaceNum(full, pos.PAYLOAD_POSITION, newPP)
+total += replaceNum(full, pos.PRELUDE_POSITION, newPRP)
+console.log(`total patches: ${total}`)
+
+fs.writeFileSync(EXE, full)
+fs.unlinkSync(EXE + '.notail').catch?.(() => {})
+try { fs.unlinkSync(CLEAN + '.pe_only') } catch {}
+
+console.log(`done: ${EXE} = ${full.length} bytes`)