feat(val-blog): add 2026-04-30 dream journey post

This commit is contained in:
Chen Gu
2026-08-13 17:00:22 +08:00
committed by Chen Gu
parent 691f96e8a6
commit 81978704fc
941 changed files with 195468 additions and 755 deletions
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#!/bin/bash
# download-model.sh - 下载适合 8GB 内存的 Qwen 模型
MODEL_DIR="${HOME}/.llama/models"
mkdir -p "$MODEL_DIR"
echo "=== 下载 Qwen 模型 (适合 8GB 内存) ==="
echo ""
echo "可选模型:"
echo "1) Qwen3-1.8B-Q4_K_M (推荐, ~1.2GB, 速度最快)"
echo "2) Qwen3-4B-Q4_K_M (~2.5GB, 质量更好)"
echo "3) Qwen2.5-1.5B-Q4_K_M (备用, ~1GB)"
echo ""
# 默认下载 1.8B 版本
MODEL_URL="https://huggingface.co/Qwen/Qwen3-1.8B-GGUF/resolve/main/qwen3-1.8b-q4_k_m.gguf"
MODEL_NAME="qwen3-1.8b-q4_k_m.gguf"
cd "$MODEL_DIR"
if [ -f "$MODEL_NAME" ]; then
echo "✅ 模型已存在: $MODEL_NAME"
else
echo "⬇️ 正在下载 $MODEL_NAME..."
echo "(如下载慢可用浏览器访问 https://huggingface.co/Qwen/Qwen3-1.8B-GGUF)"
# 使用 curl 下载,支持断点续传
curl -L -C - -o "$MODEL_NAME" "$MODEL_URL" || {
echo "❌ 下载失败,请手动下载到: $MODEL_DIR/$MODEL_NAME"
echo "下载链接: $MODEL_URL"
exit 1
}
fi
echo ""
echo "✅ 模型已准备: $MODEL_DIR/$MODEL_NAME"
echo ""
echo "=== 下一步 ==="
echo "启动服务: ./start-server.sh"
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#!/bin/bash
# install-llama-cpp.sh - 在 Intel Mac 上安装优化版 llama.cpp
set -e
echo "=== 安装 llama.cpp (Intel Mac 优化版) ==="
# 方式1: 通过 Homebrew 安装(最简单)
if command -v brew &> /dev/null; then
echo "通过 Homebrew 安装..."
brew install llama.cpp
echo "✅ Homebrew 安装完成"
else
echo "⚠️ 未检测到 Homebrew,建议先安装: https://brew.sh"
echo "或使用方式2手动编译"
fi
echo ""
echo "=== 安装后验证 ==="
which llama-cli || echo "llama-cli 未找到"
which llama-server || echo "llama-server 未找到"
echo ""
echo "=== 下一步 ==="
echo "1. 下载模型: 运行 download-model.sh"
echo "2. 启动服务: 运行 start-server.sh"
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#!/usr/bin/env python3
"""
FTS5 记忆索引系统
用于全文搜索 memory/*.md 文件
"""
import sqlite3
import os
import re
from pathlib import Path
from datetime import datetime
# 配置
MEMORY_DIR = Path.home() / ".openclaw" / "workspace" / "memory"
DB_PATH = MEMORY_DIR / ".fts5" / "memory.db"
def init_db():
"""初始化 FTS5 数据库"""
DB_PATH.parent.mkdir(parents=True, exist_ok=True)
conn = sqlite3.connect(DB_PATH)
cursor = conn.cursor()
# 创建文件表
cursor.execute("""
CREATE TABLE IF NOT EXISTS files (
id INTEGER PRIMARY KEY,
path TEXT UNIQUE NOT NULL,
modified_at TIMESTAMP,
indexed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)
""")
# 创建 FTS5 虚拟表用于全文搜索
cursor.execute("""
CREATE VIRTUAL TABLE IF NOT EXISTS memory_index USING fts5(
content,
file_id,
chunk_index,
tokenize='porter unicode61'
)
""")
# 创建 chunks 表存储分块信息
cursor.execute("""
CREATE TABLE IF NOT EXISTS chunks (
id INTEGER PRIMARY KEY,
file_id INTEGER,
chunk_index INTEGER,
content TEXT,
start_line INTEGER,
end_line INTEGER,
FOREIGN KEY (file_id) REFERENCES files(id)
)
""")
conn.commit()
conn.close()
print(f"✓ 数据库初始化完成: {DB_PATH}")
def chunk_content(content, chunk_size=500, overlap=100):
"""
将内容分块,带重叠以保持上下文
Args:
content: 文件内容
chunk_size: 每块字符数
overlap: 重叠字符数
Returns:
list of (chunk_text, start_line, end_line)
"""
lines = content.split('\n')
chunks = []
current_chunk = []
current_size = 0
start_line = 0
for i, line in enumerate(lines):
line_with_newline = line + '\n'
if current_size + len(line_with_newline) > chunk_size and current_chunk:
# 保存当前块
chunk_text = ''.join(current_chunk)
chunks.append((chunk_text, start_line + 1, i))
# 重叠部分
overlap_text = chunk_text[-overlap:] if len(chunk_text) > overlap else chunk_text
current_chunk = [overlap_text]
current_size = len(overlap_text)
start_line = i - len(overlap_text.split('\n')) + 1
current_chunk.append(line_with_newline)
current_size += len(line_with_newline)
# 最后一块
if current_chunk:
chunk_text = ''.join(current_chunk)
chunks.append((chunk_text, start_line + 1, len(lines)))
return chunks
def index_file(file_path, conn=None):
"""索引单个文件"""
close_conn = False
if conn is None:
conn = sqlite3.connect(DB_PATH)
close_conn = True
cursor = conn.cursor()
# 读取文件
try:
with open(file_path, 'r', encoding='utf-8') as f:
content = f.read()
except Exception as e:
print(f"✗ 读取失败 {file_path}: {e}")
return
# 获取文件信息
stat = os.stat(file_path)
modified_at = datetime.fromtimestamp(stat.st_mtime)
rel_path = str(Path(file_path).relative_to(MEMORY_DIR.parent))
# 插入或更新文件记录
cursor.execute("""
INSERT OR REPLACE INTO files (path, modified_at, indexed_at)
VALUES (?, ?, CURRENT_TIMESTAMP)
""", (rel_path, modified_at))
file_id = cursor.lastrowid
# 删除旧索引
cursor.execute("DELETE FROM memory_index WHERE file_id = ?", (file_id,))
cursor.execute("DELETE FROM chunks WHERE file_id = ?", (file_id,))
# 分块并索引
chunks = chunk_content(content)
for chunk_idx, (chunk_text, start_line, end_line) in enumerate(chunks):
# 插入 chunks 表
cursor.execute("""
INSERT INTO chunks (file_id, chunk_index, content, start_line, end_line)
VALUES (?, ?, ?, ?, ?)
""", (file_id, chunk_idx, chunk_text, start_line, end_line))
# 插入 FTS5 索引
cursor.execute("""
INSERT INTO memory_index (content, file_id, chunk_index)
VALUES (?, ?, ?)
""", (chunk_text, file_id, chunk_idx))
conn.commit()
if close_conn:
conn.close()
print(f"✓ 已索引: {rel_path} ({len(chunks)} 块)")
def index_all():
"""索引所有 memory 文件"""
init_db()
conn = sqlite3.connect(DB_PATH)
# 查找所有 .md 文件
md_files = list(MEMORY_DIR.glob("*.md"))
print(f"\n开始索引 {len(md_files)} 个文件...")
for file_path in md_files:
if file_path.name.startswith('.'):
continue
index_file(file_path, conn)
conn.close()
print(f"\n✓ 索引完成")
def search(query, limit=10):
"""
全文搜索
Args:
query: 搜索关键词
limit: 返回结果数量
Returns:
list of dict with path, snippet, rank
"""
conn = sqlite3.connect(DB_PATH)
cursor = conn.cursor()
# 使用 FTS5 的 snippet 功能生成摘要
cursor.execute("""
SELECT
f.path,
snippet(memory_index, 0, '[', ']', '...', 32) as snippet,
c.start_line,
c.end_line,
rank
FROM memory_index
JOIN files f ON memory_index.file_id = f.id
JOIN chunks c ON memory_index.file_id = c.file_id
AND memory_index.chunk_index = c.chunk_index
WHERE memory_index MATCH ?
ORDER BY rank
LIMIT ?
""", (query, limit))
results = []
for row in cursor.fetchall():
results.append({
'path': row[0],
'snippet': row[1],
'start_line': row[2],
'end_line': row[3],
'rank': row[4]
})
conn.close()
return results
def print_search_results(query, results):
"""打印搜索结果"""
print(f"\n🔍 搜索: '{query}'")
print(f"找到 {len(results)} 条结果:\n")
for i, r in enumerate(results, 1):
print(f"{i}. {r['path']} (行 {r['start_line']}-{r['end_line']})")
print(f" {r['snippet']}")
print()
if __name__ == "__main__":
import sys
if len(sys.argv) < 2:
print("用法:")
print(f" {sys.argv[0]} index # 索引所有文件")
print(f" {sys.argv[0]} search <query> # 搜索")
sys.exit(1)
command = sys.argv[1]
if command == "index":
index_all()
elif command == "search":
if len(sys.argv) < 3:
print("错误: 需要提供搜索关键词")
sys.exit(1)
query = sys.argv[2]
results = search(query)
print_search_results(query, results)
else:
print(f"未知命令: {command}")
sys.exit(1)
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# OpenClaw
# ~/.openclaw/openclaw.json models.providers
{
"local": {
"baseUrl": "http://127.0.0.1:8080/v1",
"apiKey": "local-llm-key",
"api": "openai-completions",
"models": [
{
"id": "qwen3-1.8b",
"name": "Qwen3-1.8B (Local)",
"reasoning": false,
"input": ["text"],
"cost": {
"input": 0,
"output": 0,
"cacheRead": 0,
"cacheWrite": 0
},
"contextWindow": 4096,
"maxTokens": 2048
}
]
}
}
# agents.defaults.model.fallbacks
# "fallbacks": [
# "lkeap/kimi-k2.5",
# "local/qwen3-1.8b", <--
# ...
# ]
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#!/bin/bash
# start-server.sh - 启动 llama.cpp 推理服务 (Intel Mac 8GB 内存优化)
MODEL_DIR="${HOME}/.llama/models"
MODEL_NAME="qwen3-1.8b-q4_k_m.gguf"
MODEL_PATH="$MODEL_DIR/$MODEL_NAME"
# 检查模型是否存在
if [ ! -f "$MODEL_PATH" ]; then
echo "❌ 模型未找到: $MODEL_PATH"
echo "请先运行: ./download-model.sh"
exit 1
fi
echo "=== 启动 llama.cpp 推理服务 ==="
echo "模型: $MODEL_NAME"
echo "内存优化: 针对 Intel Mac 8GB 优化"
echo ""
# Intel CPU + 8GB 内存优化参数
# -t 4: 使用4线程 (你的CPU是4核8线程,留一些给系统)
# -c 4096: 上下文长度 4K (省内存)
# -np 1: 单并发 (避免内存爆炸)
# --mlock: 锁定内存防止 swap (可选,如果你的内存够)
# --host 0.0.0.0: 允许局域网访问 (可选)
llama-server \
--model "$MODEL_PATH" \
--threads 4 \
--ctx-size 4096 \
--parallel 1 \
--batch-size 512 \
--timeout 300 \
--host 127.0.0.1 \
--port 8080 \
--api-key "local-llm-key" \
--verbose \
"$@"
# 如果 llama-server 找不到,尝试 llama-cli
if [ $? -ne 0 ]; then
echo ""
echo "⚠️ llama-server 未找到,尝试 llama-cli 交互模式..."
echo "(注意: llama-cli 不提供 API 服务,仅用于测试)"
llama-cli \
--model "$MODEL_PATH" \
--threads 4 \
--ctx-size 4096 \
--interactive \
--verbose-prompt
fi