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代码片段管理工具：rofi前端+Java守护进程

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2025-10-05 00:30:37 +08:00
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#!/usr/bin/env python3
import hashlib
import json
import os
import re
import shutil
import subprocess
import tempfile
from pathlib import Path
from common.constant import template_add, template_edit
from entity.result import ActionResult
from helper.api_helper import run_edit, run_add
def _parse_add_text(text: str) -> str:
# 提取第一个代码块（包含可选的 ```[Lang] 或 ```Lang）
fence_re = re.search(r"```(?:\[(?P<fence_lang>[^\]]*)\]|(?P<fence_lang2>[A-Za-z0-9_+\-]+))?\s*\r?\n(?P<code>[\s\S]*?)```", text)
fence_lang = ''
content = ''
if fence_re:
fence_lang = (fence_re.group('fence_lang') or fence_re.group('fence_lang2') or '') or ''
content = (fence_re.group('code') or '').strip()
# 把模板占位符当做空值处理
if fence_lang.strip().lower() == 'language' or fence_lang.strip() == '':
fence_lang = ''
else:
fence_lang = fence_lang.strip()
# 定位 MetaData 区块（从"## MetaData"到文档末尾或下一个"## "）
meta_match = re.search(r"##\s*MetaData\s*(?P<meta>[\s\S]*)", text, flags=re.I)
meta = meta_match.group('meta') if meta_match else ''
meta_lines = meta.splitlines()
def extract_list_value(field_name: str) -> str:
field_name_re = re.compile(rf"^\s*-\s*{re.escape(field_name)}\s*$", flags=re.I)
list_item_re = re.compile(r"^\s*-\s*(.*)$")
for i, line in enumerate(meta_lines):
if field_name_re.match(line):
# 找下一条非空行作为子项
j = i + 1
while j < len(meta_lines) and meta_lines[j].strip() == "":
j += 1
if j < len(meta_lines):
m = list_item_re.match(meta_lines[j])
if m:
val = m.group(1).strip()
# 把模板占位符当做空值处理
if val.lower() == field_name.lower() or val.lower() == 'language' and field_name.lower() == 'language' and val == '':
return ''
return val
return ""
return ""
name = extract_list_value("Name")
language_meta = extract_list_value("Language")
# 优先使用 MetaData 下方的 Language，若无再使用代码块 fence 的语言
language = language_meta or fence_lang or ""
entity = {
"name": name or "",
"language": language or "",
"content": content or "",
}
return json.dumps(entity, ensure_ascii=False)
# 包装成读取文件的版本（保留原函数签名）
def _parse_add(file_path: str) -> str:
text = Path(file_path).read_text(encoding='utf-8')
return _parse_add_text(text)
def _prefill_edit(file_path: str, source_path: str, _id: str) -> None:
# 将原始文件内容与元信息写入模板占位
# 读取原文件
src = Path(source_path).read_text(encoding='utf-8')
# 提取代码块（仅代码，不带多余模板）与语言
code_block = re.search(r"```(?:\[([^\]]*)\]|([A-Za-z0-9_+\-]+))?\s*\r?\n([\s\S]*?)```", src)
language = ''
code_only = ''
if code_block:
language = (code_block.group(1) or code_block.group(2) or '').strip()
code_only = (code_block.group(3) or '').strip()
# 若未检测到代码块则回退为全文
if not code_only:
code_only = src.strip()
# 从源文档的 MetaData 段提取 tags 与 description
tags: list[str] = []
desc = ''
# 定位 MetaData 段
meta_match = re.search(r"##\s*MetaData([\s\S]*)", src)
meta = meta_match.group(1) if meta_match else ''
if meta:
# Tags 段
tags_section = re.search(r"-\s*Tags\s*([\s\S]*?)(?:\n-\s*Description|\Z)", meta)
if tags_section:
for line in tags_section.group(1).splitlines():
m = re.match(r"^\s*-\s*(.+)$", line)
if m:
val = m.group(1).strip()
if val:
tags.append(val)
# Description 段
desc_section = re.search(r"-\s*Description\s*\n\s*-\s*(.+)", meta)
if desc_section:
desc = desc_section.group(1).strip()
# 若语言未能从代码块检测，则用路径上级名兜底
if not language:
language = Path(source_path).parent.name
# 重建模板（覆盖写入）
rebuilt_lines = []
rebuilt_lines.append("## Snippet\n\n")
if language:
rebuilt_lines.append(f"```{language}\n")
else:
rebuilt_lines.append("```\n")
rebuilt_lines.append(code_only)
rebuilt_lines.append("\n```\n\n")
rebuilt_lines.append("## MetaData\n\n")
rebuilt_lines.append("- Tags\n")
if tags:
for t in tags:
rebuilt_lines.append(f" - {t}\n")
else:
rebuilt_lines.append(" - \n - \n")
rebuilt_lines.append("- Description\n")
rebuilt_lines.append(f" - {desc}\n")
Path(file_path).write_text(''.join(rebuilt_lines), encoding='utf-8')
def _parse_edit(file_path: str, _id: str, source_path: str) -> str:
text = Path(file_path).read_text(encoding='utf-8')
# 解析语言（不强制需要）
# 解析代码块内容
code_match = re.search(r"```(?:\[[^\]]*\]|[A-Za-z0-9_+\-]*)\s*\r?\n([\s\S]*?)```", text)
content = (code_match.group(1) if code_match else '').strip()
# tags
tag_lines = re.findall(r"^-\s+(.*)$", text, flags=re.M)
# 在 '- Tags' 之后的两级缩进项
tags_section = False
tags = []
for line in text.splitlines():
if re.match(r"^-\s*Tags\s*$", line):
tags_section = True
continue
if tags_section:
m = re.match(r"^\s*-\s*(.*)$", line)
if m:
val = m.group(1).strip()
if val:
tags.append(val)
else:
# 离开 tags 段
tags_section = False
# 到 Description 再退出
if re.match(r"^-\s*Description\s*$", line):
tags_section = False
desc_match = re.search(r"-\s*Description\s*\n\s*-\s*(.*)", text)
description = (desc_match.group(1) if desc_match else '').strip()
entity = {
"id": _id,
"path": source_path,
"tags": tags,
"description": description,
"content": content,
}
return json.dumps(entity, ensure_ascii=False)
def _create_tmp(content: str) -> str:
# 创建临时文件，并写入template_path对应的文件中的内容，最终返回临时文件的路径
# 临时文件路径固定为/tmp/<随机字符串>.md
with tempfile.NamedTemporaryFile(prefix='', suffix='.md', dir='/tmp/', delete=False) as tmp_file:
temp_path = tmp_file.name
# 将模板文件内容复制到临时文件
Path(temp_path).write_text(content, encoding='utf-8')
return temp_path
def _open_with_nvim(file_path: str) -> None:
# 获取终端环境变量，默认为xterm
term = os.environ.get('TERMINAL', '')
if not term:
term = 'xterm'
# 获取终端名称
name = os.path.basename(term)
# 根据不同终端类型构建命令
cmd = [term]
# 根据终端类型添加特定参数
if name == 'alacritty':
cmd.extend(['--class', 'floating-nvim', '-e', 'nvim', file_path])
elif name == 'kitty':
cmd.extend(['--class', 'floating-nvim', 'nvim', file_path])
elif name == 'foot':
cmd.extend(['-a', 'floating-nvim', 'nvim', file_path])
elif name == 'wezterm':
cmd.extend(['start', '--class', 'floating-nvim', '--', 'nvim', file_path])
elif name.startswith('gnome-terminal'):
cmd.extend(['--class=floating-nvim', '--', 'nvim', file_path])
elif name == 'konsole':
cmd.extend(['--class', 'floating-nvim', '-e', 'nvim', file_path])
elif name == 'urxvt':
cmd.extend(['-name', 'floating-nvim', '-e', 'nvim', file_path])
elif name == 'xterm':
cmd.extend(['-class', 'floating-nvim', '-e', 'nvim', file_path])
else:
cmd.extend(['-e', 'nvim', file_path])
# 阻塞执行命令，直到进程结束
subprocess.run(cmd)
def _copy(tmp_path: str) -> None:
# 读取临时文件内容并提取代码块
text = Path(tmp_path).read_text(encoding='utf-8')
m = re.search(r"```(?:\[[^\]]*\]|[A-Za-z0-9_+\-]*)\s*\r?\n([\s\S]*?)```", text)
if not m:
code = ""
else:
code = m.group(1).strip()
# 检查是否有内容
if not code:
Path(tmp_path).unlink(missing_ok=True)
return
# 检查是否有 wl-copy 命令
if not shutil.which('wl-copy'):
print("Error: 未安装 wl-copy")
Path(tmp_path).unlink(missing_ok=True)
return
# 复制到剪贴板
process = subprocess.Popen(['wl-copy'], stdin=subprocess.PIPE, text=True)
process.communicate(input=code)
def _calculate_file_sha256(file_path):
"""
计算文件的SHA256哈希值
Args:
file_path (str): 文件路径
Returns:
str: 文件的SHA256哈希值（十六进制字符串）
"""
# 创建SHA256哈希对象
sha256_hash = hashlib.sha256()
# 以二进制模式打开文件
with open(file_path, 'rb') as file:
# 分块读取文件，避免内存问题
for byte_block in iter(lambda: file.read(4096), b""):
sha256_hash.update(byte_block)
# 返回十六进制格式的哈希值
return sha256_hash.hexdigest()
def edit_and_copy(path: str, id: str) -> ActionResult:
tmp_path = _create_tmp(template_edit)
try:
_prefill_edit(tmp_path, path, id)
_open_with_nvim(tmp_path)
_copy(tmp_path)
# 清理临时文件
return ActionResult(True, "")
except Exception as e:
print(f"Error: {e}")
return ActionResult(False, str(e))
finally:
Path(tmp_path).unlink(missing_ok=True)
def edit(path: str, id: str) -> ActionResult:
tmp_path = _create_tmp(template_edit)
primary_hash = _calculate_file_sha256(path)
try:
_prefill_edit(tmp_path, path, id)
_open_with_nvim(tmp_path)
new_hash = _calculate_file_sha256(path)
if primary_hash == new_hash:
return ActionResult(True, "文件未修改")
edit_json = _parse_edit(tmp_path, id, path)
response = run_edit(edit_json)
if response.status == "SUCCESS":
return ActionResult(True, response.data)
else:
return ActionResult(False, response.data)
except Exception as e:
print(f"Error: {e}")
return ActionResult(False, str(e))
finally:
Path(tmp_path).unlink(missing_ok=True)
def add() -> ActionResult:
tmp_path = _create_tmp(template_add)
primary_hash = _calculate_file_sha256(tmp_path)
try:
_open_with_nvim(tmp_path)
new_hash = _calculate_file_sha256(tmp_path)
if primary_hash == new_hash:
return ActionResult(True, "内容为空")
add_json = _parse_add(tmp_path)
response = run_add(add_json)
if response.status == "SUCCESS":
return ActionResult(True, response.data)
else:
return ActionResult(False, response.data)
except Exception as e:
print(f"Error: {e}")
return ActionResult(False, str(e))
finally:
Path(tmp_path).unlink(missing_ok=True)
if __name__ == '__main__':
tmp_path = _create_tmp(template_add)
_open_with_nvim(tmp_path)
add_json = _parse_add(tmp_path)
print(add_json)