refactor: add mason-schemas and mason-core modules (#29)

* refactor: add mason-schemas and move generated filetype map to mason-lspconfig

* refactor: add mason-core module

1 files changed, 174 insertions, 0 deletions

diff --git a/lua/mason-core/log.lua b/lua/mason-core/log.lua
new file mode 100644
index 00000000..a2593a56
--- /dev/null
+++ b/lua/mason-core/log.lua
@@ -0,0 +1,174 @@
+local _ = require "mason-core.functional"
+local path = require "mason-core.path"
+local settings = require "mason.settings"
+local platform = require "mason-core.platform"
+
+local config = {
+    -- Name of the plugin. Prepended to log messages
+    name = "mason",
+
+    -- Should print the output to neovim while running
+    -- values: 'sync','async',false
+    use_console = platform.is_headless,
+
+    -- Should highlighting be used in console (using echohl)
+    highlights = true,
+
+    -- Should write to a file
+    use_file = true,
+
+    -- Level configuration
+    modes = {
+        { name = "trace", hl = "Comment", level = vim.log.levels.TRACE },
+        { name = "debug", hl = "Comment", level = vim.log.levels.DEBUG },
+        { name = "info", hl = "None", level = vim.log.levels.INFO },
+        { name = "warn", hl = "WarningMsg", level = vim.log.levels.WARN },
+        { name = "error", hl = "ErrorMsg", level = vim.log.levels.ERROR },
+    },
+
+    -- Can limit the number of decimals displayed for floats
+    float_precision = 0.01,
+}
+
+local log = {
+    outfile = path.concat {
+        vim.fn.stdpath "cache", -- TODO use "log" when stable
+        ("%s.log"):format(config.name),
+    },
+}
+
+local unpack = unpack or table.unpack
+
+do
+    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 tbl_has_tostring = function(tbl)
+        local mt = getmetatable(tbl)
+        return mt and mt.__tostring ~= nil
+    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" and not tbl_has_tostring(x) 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_config, message_maker, ...)
+        -- Return early if we're below the current_log_level
+        if level_config.level < settings.current.log_level then
+            return
+        end
+        local nameupper = level_config.name:upper()
+
+        local msg = message_maker(...)
+        local info = debug.getinfo(config.info_level or 2, "Sl")
+        local lineinfo = info.short_src .. ":" .. info.currentline
+
+        -- Output to console
+        if config.use_console then
+            local log_to_console = function()
+                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
+                    local formatted_msg = string.format("[%s] %s", config.name, vim.fn.escape(v, [["\]]))
+
+                    local ok = pcall(vim.cmd, string.format([[echom "%s"]], formatted_msg))
+                    if not ok then
+                        vim.api.nvim_out_write(msg .. "\n")
+                    end
+                end
+
+                if config.highlights and level_config.hl then
+                    vim.cmd "echohl NONE"
+                end
+            end
+            if config.use_console == "sync" and not vim.in_fast_event() then
+                log_to_console()
+            else
+                vim.schedule(log_to_console)
+            end
+        end
+
+        -- Output to log file
+        if config.use_file then
+            local fp = assert(io.open(log.outfile, "a"))
+            local str = string.format("[%-6s%s] %s: %s\n", nameupper, os.date(), lineinfo, msg)
+            fp:write(str)
+            fp:close()
+        end
+    end
+
+    for __, x in ipairs(config.modes) do
+        -- log.info("these", "are", "separated")
+        log[x.name] = function(...)
+            return log_at_level(x, make_string, ...)
+        end
+
+        -- log.fmt_info("These are %s strings", "formatted")
+        log[("fmt_%s"):format(x.name)] = function(...)
+            return log_at_level(x, function(...)
+                local passed = { ... }
+                local fmt = table.remove(passed, 1)
+                local inspected = {}
+                for _, v in ipairs(passed) do
+                    if type(v) == "table" and tbl_has_tostring(v) then
+                        table.insert(inspected, v)
+                    else
+                        table.insert(inspected, vim.inspect(v))
+                    end
+                end
+                return string.format(fmt, unpack(inspected))
+            end, ...)
+        end
+
+        -- log.lazy_info(expensive_to_calculate)
+        log[("lazy_%s"):format(x.name)] = function(f)
+            return log_at_level(x, function()
+                local passed = _.table_pack(f())
+                local fmt = table.remove(passed, 1)
+                local inspected = {}
+                for _, v in ipairs(passed) do
+                    if type(v) == "table" and tbl_has_tostring(v) then
+                        table.insert(inspected, v)
+                    else
+                        table.insert(inspected, vim.inspect(v))
+                    end
+                end
+                return string.format(fmt, unpack(inspected))
+            end)
+        end
+
+        -- log.file_info("do not print")
+        log[("file_%s"):format(x.name)] = function(vals, override)
+            local original_console = config.use_console
+            config.use_console = false
+            config.info_level = override.info_level
+            log_at_level(x, make_string, unpack(vals))
+            config.use_console = original_console
+            config.info_level = nil
+        end
+    end
+end
+
+return log