lazy.nvim/lua/lazy/docs.lua

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local M = {}
function M.read(file)
local fd = assert(io.open(file, "r"))
local data = fd:read("*a") ---@type string
fd:close()
return data
end
function M.indent(str, indent)
local lines = vim.split(str, "\n")
for l, line in ipairs(lines) do
lines[l] = (" "):rep(indent) .. line
end
return table.concat(lines, "\n")
end
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function M.toc(md)
local toc = {}
local lines = vim.split(md, "\n")
local toc_found = false
for _, line in ipairs(lines) do
local hash, title = line:match("^(#+)%s*(.*)")
if hash then
if toc_found then
local anchor = string.gsub(title:lower(), "[^\32-\126]", "")
anchor = string.gsub(anchor, " ", "-")
toc[#toc + 1] = string.rep(" ", #hash - 1) .. "- [" .. title .. "](#" .. anchor .. ")"
end
if title:find("Table of Contents") then
toc_found = true
end
end
end
return M.fix_indent(table.concat(toc, "\n"))
end
---@param str string
function M.fix_indent(str)
local lines = vim.split(str, "\n")
local width = 120
for _, line in ipairs(lines) do
width = math.min(width, #line:match("^%s*"))
end
for l, line in ipairs(lines) do
lines[l] = line:sub(width)
end
return table.concat(lines, "\n")
end
---@param contents table<string, string>
function M.save(contents)
local readme = M.read("README.md")
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contents.toc = M.toc(readme)
for tag, content in pairs(contents) do
content = M.fix_indent(content)
content = content:gsub("%%", "%%%%")
content = vim.trim(content)
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local pattern = "(<%!%-%- " .. tag .. ":start %-%->).*(<%!%-%- " .. tag .. ":end %-%->)"
if not readme:find(pattern) then
error("tag " .. tag .. " not found")
end
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if tag == "toc" then
readme = readme:gsub(pattern, "%1\n\n" .. content .. "\n\n%2")
else
readme = readme:gsub(pattern, "%1\n\n```lua\n" .. content .. "\n```\n\n%2")
end
end
local fd = assert(io.open("README.md", "w+"))
fd:write(readme)
fd:close()
end
---@return string
function M.extract(file, pattern)
local init = M.read(file)
return assert(init:match(pattern))
end
function M.update()
local cache_config = M.extract("lua/lazy/core/cache.lua", "\nM%.config = ({.-\n})")
local config = M.extract("lua/lazy/core/config.lua", "\nM%.defaults = ({.-\n})")
config = config:gsub(
"\n%s*%-%-%-@type LazyCacheConfig.*cache = nil,",
"\n" .. M.indent("cache = " .. cache_config .. ",", 4)
)
config = config:gsub("%s*debug = false.\n", "\n")
M.save({
bootstrap = M.extract("lua/lazy/init.lua", "function M%.bootstrap%(%)\n(.-)\nend"),
config = config,
spec = M.read("lua/lazy/example.lua"),
})
vim.cmd.checktime()
end
M.update()
return M