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153 lines
2.5 KiB
Lua
153 lines
2.5 KiB
Lua
-- Echoing of LSP diagnostics in the commandline.
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local M = {}
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-- Location information about the last message printed. The format is
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-- `(did print, buffer number, line number)`.
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local last_echo = { false, -1, -1 }
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-- The timer used for displaying a diagnostic in the commandline.
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local echo_timer = nil
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-- The timer after which to display a diagnostic in the commandline.
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local echo_timeout = 250
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-- The highlight group to use for warning messages.
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local warning_hlgroup = 'WarningMsg'
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-- The highlight group to use for error messages.
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local error_hlgroup = 'ErrorMsg'
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-- If the first diagnostic line has fewer than this many characters, also add
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-- the second line to it.
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local short_line_limit = 20
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-- Shows the current line's diagnostics in a floating window.
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function M.show_line_diagnostics()
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vim
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.lsp
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.diagnostic
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.show_line_diagnostics({ severity_limit = 'Warning' }, vim.fn.bufnr(''))
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end
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-- Prints the first diagnostic for the current line.
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function M.echo_diagnostic()
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if echo_timer then
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echo_timer:stop()
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end
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echo_timer = vim.defer_fn(
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function()
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local line = vim.fn.line('.') - 1
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local bufnr = vim.api.nvim_win_get_buf(0)
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if last_echo[1] and last_echo[2] == bufnr and last_echo[3] == line then
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return
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end
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local diags = vim
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.lsp
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.diagnostic
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.get_line_diagnostics(bufnf, line, { severity_limit = 'Warning' })
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if #diags == 0 then
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-- If we previously echo'd a message, clear it out by echoing an empty
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-- message.
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if last_echo[1] then
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last_echo = { false, -1, -1 }
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vim.api.nvim_command('echo ""')
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end
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return
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end
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last_echo = { true, bufnr, line }
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local diag = diags[1]
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local width = vim.api.nvim_get_option('columns') - 15
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local lines = vim.split(diag.message, "\n")
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local message = lines[1]
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local trimmed = false
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if #lines > 1 and #message <= short_line_limit then
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message = message .. ' ' .. lines[2]
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end
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if width > 0 and #message >= width then
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message = message:sub(1, width) .. '...'
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end
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local kind = 'warning'
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local hlgroup = warning_hlgroup
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if diag.severity == vim.lsp.protocol.DiagnosticSeverity.Error then
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kind = 'error'
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hlgroup = error_hlgroup
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end
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local chunks = {
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{ kind .. ': ', hlgroup },
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{ message }
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}
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vim.api.nvim_echo(chunks, false, {})
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end,
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echo_timeout
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)
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end
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return M
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