初始发布: 21 个 skills (Claude Code / Codex / DSH)

2026-08-14 01:51:44 +08:00
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+#!/usr/bin/env bash
+# Download YouTube video(s) at highest quality as merged MP4 (Linux/macOS).
+#
+#   ./yt-download.sh "https://www.youtube.com/watch?v=xxxx"
+#   ./yt-download.sh URL1 URL2 URL3
+#
+# Env overrides:
+#   OUTDIR=/path/to/dir      output directory (default: ~/Downloads)
+#   FORMAT="..."             yt-dlp -f selector (default: bestvideo+bestaudio/best)
+#   COOKIES=/path/cookies.txt  Netscape cookies file (default: cookies.txt beside this script)
+#
+# Requirements: yt-dlp, ffmpeg, and a JS runtime (bun/deno/node) must be installed.
+#   pipx install yt-dlp   (or: brew install yt-dlp / apt install yt-dlp)
+#   brew install ffmpeg   (or: apt install ffmpeg)
+#   bun / deno / node any one (needed for YouTube JS challenges)
+
+set -euo pipefail
+
+if [ "$#" -lt 1 ]; then
+  echo "usage: $0 <youtube-url> [more urls...]" >&2
+  exit 2
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+OUTDIR="${OUTDIR:-$HOME/Downloads}"
+FORMAT="${FORMAT:-bestvideo+bestaudio/best}"
+
+# yt-dlp
+if ! command -v yt-dlp >/dev/null 2>&1; then
+  echo "error: yt-dlp not found. Install it: pipx install yt-dlp" >&2
+  exit 1
+fi
+# ffmpeg
+if ! command -v ffmpeg >/dev/null 2>&1; then
+  echo "warning: ffmpeg not found; merging video+audio will fail. Install ffmpeg." >&2
+fi
+
+# JS runtime for YouTube JS challenges. Prefer bun, fall back to deno/node.
+# Override with JS_RUNTIME=bun|deno|node (must be on PATH).
+# --no-js-runtimes ensures ONLY the chosen runtime is used (bun won't be
+# silently shadowed by yt-dlp's built-in deno preference).
+JS_ARGS=()
+JS_RUNTIME_NAME=
+JS_RUNTIME_BIN=
+if [ -n "${JS_RUNTIME:-}" ] && command -v "$JS_RUNTIME" >/dev/null 2>&1; then
+  JS_RUNTIME_NAME="$JS_RUNTIME"
+  JS_RUNTIME_BIN="$(command -v "$JS_RUNTIME")"
+elif command -v bun >/dev/null 2>&1; then
+  JS_RUNTIME_NAME="bun"
+  JS_RUNTIME_BIN="$(command -v bun)"
+elif command -v deno >/dev/null 2>&1; then
+  JS_RUNTIME_NAME="deno"
+  JS_RUNTIME_BIN="$(command -v deno)"
+elif [ -x "$HOME/.deno/bin/deno" ]; then
+  JS_RUNTIME_NAME="deno"
+  JS_RUNTIME_BIN="$HOME/.deno/bin/deno"
+elif command -v node >/dev/null 2>&1; then
+  JS_RUNTIME_NAME="node"
+  JS_RUNTIME_BIN="$(command -v node)"
+fi
+if [ -n "$JS_RUNTIME_NAME" ]; then
+  JS_ARGS=(--no-js-runtimes --js-runtimes "$JS_RUNTIME_NAME:$JS_RUNTIME_BIN")
+else
+  echo "warning: no JS runtime (bun/deno/node) found. YouTube may reject the download ('confirm you're not a bot')." >&2
+fi
+
+# cookies
+COOKIES="${COOKIES:-$SCRIPT_DIR/cookies.txt}"
+COOKIE_ARGS=()
+if [ -f "$COOKIES" ]; then
+  COOKIE_ARGS=(--cookies "$COOKIES")
+  echo "[info] using cookies: $COOKIES"
+else
+  echo "[info] no cookies.txt -- public videos only. See SKILL.md for login-required videos."
+fi
+
+mkdir -p "$OUTDIR"
+
+fail=0
+for url in "$@"; do
+  echo ""
+  echo "==== downloading: $url ===="
+  if ! yt-dlp "${JS_ARGS[@]}" "${COOKIE_ARGS[@]}" \
+        -f "$FORMAT" \
+        --merge-output-format mp4 \
+        -o "$OUTDIR/%(title)s [%(height)sp].%(ext)s" \
+        --no-playlist \
+        "$url"; then
+    fail=$((fail+1))
+    echo "warning: failed: $url" >&2
+  fi
+done
+
+if [ "$fail" -gt 0 ]; then
+  echo "warning: $fail download(s) failed." >&2
+  exit 1
+fi
+echo ""
+echo "All done. Saved to: $OUTDIR"