SoloVim/after/plugin/sql_automagic.lua

103 lines
2.8 KiB
Lua

local run_formatter = function(text)
local split = vim.split(text, "\n")
local result = table.concat(vim.list_slice(split, 2, #split - 1), "\n")
local j = require("plenary.job"):new({
command = "sqruff",
args = { "format", "-" },
writer = { result },
})
return j:sync()
end
local literals = {
rust = { "string_literal", "raw_string_literal" },
python = { "string_content" },
}
local function generate_query(lang, nodes)
local node_string = table.concat(nodes, ")\n\t\t(")
local query = string.format(
[[
([
(%s)
] @sql
(#match? @sql "(SELECT|select|INSERT|insert|UPDATE|update|DELETE|delete).+(FROM|from|INTO|into|VALUES|values|SET|set).*(WHERE|where|GROUP BY|group by)?")
(#offset! @sql 1 0 -1 0))
]],
node_string
)
return lang, query
end
local queries = {}
for lang, nodes in pairs(literals) do
local language, query_string = generate_query(lang, nodes)
queries[lang] = {
language = language,
query = query_string,
}
end
local get_root = function(bufnr, lang)
local parser = vim.treesitter.get_parser(bufnr, lang, {})
local tree = parser:parse()[1]
return tree:root()
end
local format_dat_sql = function(bufnr)
bufnr = bufnr or vim.api.nvim_get_current_buf()
local changes = {}
for _, query in pairs(queries) do
local root = get_root(bufnr, query.language)
-- if vim.bo[bufnr].filetype ~= query.language then
-- vim.notify("can only be used in {}", query.language)
-- return
-- end
local embedded_sql = vim.treesitter.query.parse(query.language, query.query)
for id, node in embedded_sql:iter_captures(root, bufnr, 0, -1) do
local name = embedded_sql.captures[id]
if name == "sql" then
-- { start row, start col, end row, end col }
local range = { node:range() }
local indentation = string.rep(" ", range[2])
-- Run the formatter, based on the node text
local formatted = run_formatter(vim.treesitter.get_node_text(node, bufnr))
-- Add some indentation (can be anything you like!)
for idx, line in ipairs(formatted) do
formatted[idx] = indentation .. line
end
-- Keep track of changes
-- But insert them in reverse order of the file,
-- so that when we make modifications, we don't have
-- any out of date line numbers
table.insert(changes, 1, {
start = range[1] + 1,
final = range[3],
formatted = formatted,
})
end
end
end
for _, change in ipairs(changes) do
vim.api.nvim_buf_set_lines(bufnr, change.start, change.final, false, change.formatted)
end
end
vim.api.nvim_create_user_command("SqlMagic", function()
format_dat_sql()
end, {})
local group = vim.api.nvim_create_augroup("rust-sql-magic", { clear = true })
vim.api.nvim_create_autocmd("BufWritePre", {
group = group,
pattern = "*.rs",
callback = function()
format_dat_sql()
end,
})