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--[[

--FROM: https://github.com/tjdevries/vlog.nvim

--]]

-- log.lua

-- Inspired by rxi/log.lua

-- Modified by tjdevries and can be found at github.com/tjdevries/vlog.nvim

-- This library is free software; you can redistribute it and/or modify it

-- under the terms of the MIT license. See LICENSE for details.

-- User configuration section

local default_config = {

-- Name of the plugin. Prepended to log messages

plugin = 'nvim-java',

-- Should print the output to neovim while running

use_console = false,

-- Should highlighting be used in console (using echohl)

highlights = true,

-- Should write to a file

use_file = true,

-- Any messages above this level will be logged.

level = 'trace',

-- Level configuration

modes = {

{ name = 'trace', hl = 'Comment' },

{ name = 'debug', hl = 'Comment' },

{ name = 'info', hl = 'None' },

{ name = 'warn', hl = 'WarningMsg' },

{ name = 'error', hl = 'ErrorMsg' },

{ name = 'fatal', hl = 'ErrorMsg' },

-- Can limit the number of decimals displayed for floats

float_precision = 0.01,

}

-- {{{ NO NEED TO CHANGE

local log = {}

local unpack = unpack or table.unpack

log.new = function(config, standalone)

config = vim.tbl_deep_extend('force', default_config, config)

local outfile = string.format(

'%s/%s.log',

vim.api.nvim_call_function('stdpath', { 'data' }),

config.plugin

)

local obj

if standalone then

obj = log

else

obj = {}

end

local levels = {}

for i, v in ipairs(config.modes) do

levels[v.name] = i

end

local round = function(x, increment)

increment = increment or 1

x = x / increment

return (x > 0 and math.floor(x + 0.5) or math.ceil(x - 0.5)) * increment

end

local make_string = function(...)

local t = {}

for i = 1, select('#', ...) do

local x = select(i, ...)

if type(x) == 'number' and config.float_precision then

x = tostring(round(x, config.float_precision))

elseif type(x) == 'table' then

x = vim.inspect(x)

else

x = tostring(x)

end

t[#t + 1] = x

end

return table.concat(t, ' ')

end

local log_at_level = function(level, level_config, message_maker, ...)

-- Return early if we're below the config.level

if level < levels[config.level] then

return

end

local nameupper = level_config.name:upper()

local msg = message_maker(...)

local info = debug.getinfo(2, 'Sl')

local lineinfo = info.short_src .. ':' .. info.currentline

-- Output to console

if config.use_console then

local console_string = string.format(

'[%-6s%s] %s: %s',

nameupper,

os.date('%H:%M:%S'),

lineinfo,

msg

)

if config.highlights and level_config.hl then

vim.cmd(string.format('echohl %s', level_config.hl))

end

local split_console = vim.split(console_string, '\n')

for _, v in ipairs(split_console) do

vim.cmd(

string.format(

[[echom "[%s] %s"]],

config.plugin,

vim.fn.escape(v, '"')

)

end

if config.highlights and level_config.hl then

vim.cmd('echohl NONE')

end

-- Output to log file

if config.use_file then

local fp = io.open(outfile, 'a')

local str =

string.format('[%-6s%s] %s: %s\n', nameupper, os.date(), lineinfo, msg)

assert(fp, 'cannot open file: ' .. ' to write logs')

fp:write(str)

fp:close()

end

for i, x in ipairs(config.modes) do

obj[x.name] = function(...)

return log_at_level(i, x, make_string, ...)

end

obj[('fmt_%s'):format(x.name)] = function(...)

local passed = { ... }

return log_at_level(i, x, function()

local fmt = table.remove(passed, 1)

local inspected = {}

for _, v in ipairs(passed) do

table.insert(inspected, vim.inspect(v))

end

return string.format(fmt, unpack(inspected))

end)

end

return obj

end

log.new(default_config, true)

return log

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