220 lines
8.8 KiB
Python
220 lines
8.8 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""生成 docs/images/配置文件分层架构.svg —— 通用配置文件（/config.ini）分层架构图（纯标准库，无需第三方依赖）。
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由 gen_net_stack_svg.py 复制改数据区：配置体系六层结构
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（docs/配置文件设计说明.md §4.1）：
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PC 端（编辑器/FTP 客户端）→ lftpd FTP 服务 → /config.ini 文件 → cfg_file 引擎 → 段适配（键表）→ 消费者。
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用法（仓库根目录，任意 python3）：
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python tools/arch_diagram/gen_cfg_arch_svg.py
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输出：
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docs/images/配置文件分层架构.svg
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改架构时：编辑本文件顶部的 LAYERS / ROWS 数据后重跑即可。
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"""
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import html
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import os
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ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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OUT = os.path.join(ROOT, "docs", "images", "配置文件分层架构.svg")
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# ----------------------------- 画布与尺寸参数 -----------------------------
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W = 1200
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PAD = 26
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TITLE_FONT = 20
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SUB_FONT = 13
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BAND_TITLE_FONT = 17
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BAND_SUB_FONT = 12
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CHIP_FONT = 13
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CHIP_H = 38 # 芯片盒高
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CHIP_GAP = 10 # 芯片水平间距
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CHIP_ROW_GAP = 10 # 芯片行间距
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CHIP_PAD = 16 # 芯片内左右留白
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BAND_PAD_X = 18 # 框内左右留白
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BAND_TITLE_H = 38 # 框内标题区高
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BAND_PAD_BOTTOM = 16
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BAND_H_GAP = 26 # 同一行内并列框的间距
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BAND_V_GAP = 44 # 行间距（放箭头）
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TITLE_H = 78 # 顶部标题区高
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FONT = "Microsoft YaHei, Segoe UI, PingFang SC, sans-serif"
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# ----------------------------- 架构数据（改这里） -----------------------------
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L_PC = dict(
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title="PC 端（外部）", sub="文本编辑器 + FTP 客户端", color="#475569", bg="#f1f5f9",
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chips=["文本编辑器：改 /config.ini（注释 / 加段 / 改值）",
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"FTP 客户端：RETR 下载 / STOR 上传（端口 21）"],
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)
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L_FTP = dict(
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title="lftpd FTP 服务（端口 21）", sub="ftpTask · 单连接 · root = /（= 卷根）", color="#7c3aed", bg="#f5f3ff",
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chips=["RETR / STOR / LIST / DELE / CWD（lftpd 现状能力）",
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"STOR = 原地覆盖（无 tmp+rename）",
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"路径规范化封死 .. 穿越"],
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)
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L_FILE = dict(
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title="/config.ini（通用配置文件）", sub="FatFS 卷根（NAND GD5F2GQ5UE · dhara FTL）", color="#0d9488", bg="#f0fdfa",
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chips=["INI 文本：[段] / key=value / ; 注释",
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"CRLF · UTF-8（容忍 BOM）· ≤ 4KB",
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"设备写：tmp + rename（原子）；变更识别：size + mtime"],
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)
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L_ENGINE = dict(
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title="cfg_file（配置文件引擎）", sub="App/cfg_file.c · 双端共享", color="#2563eb", bg="#eff6ff",
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chips=["INI 解析 / 序列化（逐键校验 · 容错 · 自愈）",
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"外科手术式保存（保留注释 / 未知段 → 降级安全）",
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"2s 变更轮询（f_stat）+ 段变更回调",
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"出厂模板生成 · 旧 NCFG blob 迁移"],
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)
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L_SECT = dict(
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title="段适配（键表）", sub="段 RAM 副本 = 模块静态结构体（稳态 0 增量）", color="#16a34a", bg="#f0fdf4",
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chips=["net_cfg [network]：ip / mask / gateway / mac",
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"未来：[adc] · [rs485] · [ftp] ...（三步接入）"],
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)
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L_CONS = dict(
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title="消费者", sub="读 / 写段 RAM 副本 + 应用", color="#e11d48", bg="#fff1f2",
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chips=["netTask：组网 / 重建（代次号自愈）",
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"UI 网口设置页：显示 / 编辑 / 保存（零改动）",
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"未来模块：cfg_file_section_data() 取段数据"],
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)
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# 每一行可放多个"同级并列"的层（上层只依赖下方各层）
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ROWS = [
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[L_PC],
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[L_FTP],
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[L_FILE],
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[L_ENGINE],
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[L_SECT],
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[L_CONS],
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]
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FOOT = "稳态 RAM 零增量（段数据 = 模块既有结构体）；暂态堆缓冲 ≤9KB（仅 load/save 时）；FF_FS_REENTRANT=1 卷锁串行化多任务 FS 访问；模拟器端 = 宿主文件 sim_config.ini（同核心）"
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# ----------------------------- 工具函数 -----------------------------
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def esc(s):
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return html.escape(s, quote=True)
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def text_w(s, fs):
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"""粗略估算文本像素宽：CJK/全角/圈码/箭头 ≈ 1.0em，其余 ≈ 0.58em。
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取偏大估计（宁可芯片略宽，不可文字溢出盒外）。
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"""
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w = 0.0
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for ch in s:
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w += fs * (1.0 if ord(ch) >= 0x2460 else 0.58)
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return w
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def chip_w(label):
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return text_w(label, CHIP_FONT) + 2 * CHIP_PAD
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def wrap_chips(chips, avail):
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rows, cur, cur_w = [], [], 0.0
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for c in chips:
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cw = chip_w(c)
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need = cw if not cur else cur_w + CHIP_GAP + cw
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if cur and need > avail:
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rows.append(cur)
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cur, cur_w = [c], cw
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else:
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cur.append(c)
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cur_w = need
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if cur:
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rows.append(cur)
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return rows
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# ----------------------------- 生成 -----------------------------
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def build():
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out = []
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add = out.append
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# 布局：逐行排布（行内可并列多个框，行高取该行最高框）
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placements = [] # (layer, chip_rows, x, y, w, h)
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y = TITLE_H
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for row in ROWS:
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n = len(row)
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bw = (W - 2 * PAD - BAND_H_GAP * (n - 1)) // n
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bands = []
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for i, layer in enumerate(row):
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bx = PAD + i * (bw + BAND_H_GAP)
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avail = bw - 2 * BAND_PAD_X
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rows = wrap_chips(layer["chips"], avail)
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bh = BAND_TITLE_H + len(rows) * CHIP_H + (len(rows) - 1) * CHIP_ROW_GAP + BAND_PAD_BOTTOM
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bands.append([layer, rows, bx, y, bw, bh])
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row_h = max(b[5] for b in bands)
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for b in bands:
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b[5] = row_h # 同行等高（视觉"同级"）
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placements.extend(bands)
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y += row_h + BAND_V_GAP
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total_h = y - BAND_V_GAP + 54
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add('<rect x="0" y="0" width="%d" height="%d" fill="#ffffff"/>' % (W, total_h))
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add('<text x="%d" y="%d" font-size="%d" font-weight="700" fill="#0f172a">%s</text>'
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% (PAD, 40, TITLE_FONT, esc("通用配置文件分层架构（/config.ini）")))
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add('<text x="%d" y="%d" font-size="%d" fill="#64748b">%s</text>'
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% (PAD, 62, SUB_FONT,
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esc("INI 文本文件 · FTP 上传/下载 · 段键表引擎 · MCU/模拟器双端共享")))
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for (layer, rows, bx, by, bw, bh) in placements:
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# 框背景 + 边框
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add('<rect x="%d" y="%d" width="%d" height="%d" rx="12" fill="%s" stroke="%s" '
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'stroke-opacity="0.45"/>' % (bx, by, bw, bh, layer["bg"], layer["color"]))
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# 标题（层名 + 目录/职责说明）
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add('<text x="%d" y="%d" font-size="%d" font-weight="700" fill="%s">%s</text>'
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% (bx + BAND_PAD_X, by + 26, BAND_TITLE_FONT, layer["color"], esc(layer["title"])))
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tw = text_w(layer["title"], BAND_TITLE_FONT)
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add('<text x="%.0f" y="%d" font-size="%s" fill="#64748b">%s</text>'
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% (bx + BAND_PAD_X + tw + 12, by + 26, BAND_SUB_FONT, esc(layer["sub"])))
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# 芯片
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cy = by + BAND_TITLE_H
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for row in rows:
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cx = bx + BAND_PAD_X
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for c in row:
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cw = chip_w(c)
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add('<rect x="%d" y="%d" width="%d" height="%d" rx="8" fill="#ffffff" '
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'stroke="%s" stroke-opacity="0.55"/>' % (cx, cy, cw, CHIP_H, layer["color"]))
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add('<text x="%d" y="%d" font-size="%d" fill="#1e293b" text-anchor="middle">%s</text>'
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% (cx + cw / 2, cy + CHIP_H / 2 + CHIP_FONT * 0.35, CHIP_FONT, esc(c)))
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cx += cw + CHIP_GAP
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cy += CHIP_H + CHIP_ROW_GAP
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# 行间箭头：每个上层框向下引一条
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row_first = [] # 每行首个 placement 的下标
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idx = 0
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for row in ROWS:
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row_first.append(idx)
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idx += len(row)
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for r in range(len(ROWS) - 1):
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y0 = placements[row_first[r]][3] + placements[row_first[r]][5] + 6
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y1 = placements[row_first[r + 1]][3] - 8
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for i in range(row_first[r], row_first[r] + len(ROWS[r])):
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(_, _, bx, _, bw, _) = placements[i]
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ax = bx + bw / 2
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add('<line x1="%.1f" y1="%.1f" x2="%.1f" y2="%.1f" stroke="#94a3b8" '
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'stroke-width="2.5"/>' % (ax, y0, ax, y1 - 7))
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add('<path d="M %.1f %.1f l -6 -9 h 12 z" fill="#94a3b8"/>' % (ax, y1))
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add('<text x="%d" y="%d" font-size="12" fill="#94a3b8">%s</text>'
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% (PAD, total_h - 18, esc(FOOT)))
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svg = ('<svg xmlns="http://www.w3.org/2000/svg" width="%d" height="%d" '
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'viewBox="0 0 %d %d" font-family="%s">\n%s\n</svg>\n'
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% (W, total_h, W, total_h, FONT, "\n".join(out)))
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return svg, total_h
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def main():
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svg, h = build()
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with open(OUT, "w", encoding="utf-8", newline="\n") as f:
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f.write(svg)
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import xml.etree.ElementTree as ET
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ET.fromstring(svg)
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print("OK %d bytes, canvas %dx%d -> %s" % (len(svg.encode("utf-8")), W, h, OUT))
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if __name__ == "__main__":
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main()
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