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https://github.com/sbrl/Minetest-WorldEditAdditions.git
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abstract new xpcall wrapper into new API function safe_function
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parent
c01eb23488
commit
00b1aed1ff
3 changed files with 93 additions and 67 deletions
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@ -5,6 +5,7 @@
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local wea_c = worldeditadditions_core
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local safe_region = dofile(wea_c.modpath.."/core/safe_region.lua")
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local human_size = wea_c.format.human_size
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local safe_function = wea_c.safe_function
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-- TODO: Reimplement worldedit.player_notify(player_name, msg_text)
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@ -34,56 +35,7 @@ local function run_command_stage2(player_name, func, parse_result, tbl_event)
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wea_c:emit("post-execute", tbl_event)
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end
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local function send_error(player_name, cmdname, msg, stack_trace)
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print("DEBUG:HAI SEND_ERROR")
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local msg_compiled = table.concat({
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"[//", cmdname, "] Error: ",
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msg,
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"\n",
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"Please report this by opening an issue on GitHub! Bug report link (ctrl + click):\n",
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"https://github.com/sbrl/Minetest-WorldEditAdditions/issues/new?title=",
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wea_c.format.escape(stack_trace:match("^[^\n]+")), -- extract 1st line & escape
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"&body=",
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wea_c.format.escape(table.concat({
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[[## Describe the bug
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What's the bug? Be clear and detailed but concise in our explanation. Don't forget to include any context, error messages, logs, and screenshots required to understand the issue if applicable.
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## Reproduction steps
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Steps to reproduce the behaviour:
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1. Go to '...'
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2. Click on '....'
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3. Enter this command to '....'
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4. See error
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## System information (please complete the following information)
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- **Operating system and version:** [e.g. iOS]
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- **Minetest version:** [e.g. 5.8.0]
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- **WorldEdit version:**
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- **WorldEditAdditions version:**
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Please add any other additional specific system information here too if you think it would help.
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## Stack trace
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- **Command name:** ]],
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cmdname,
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"\n",
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"```\n",
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stack_trace,
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"```\n",
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}, "")),
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"\n",
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"-------------------------------------\n",
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"*** Stack trace ***\n",
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stack_trace,
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"\n",
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"-------------------------------------\n"
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}, "")
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print("DEBUG:player_notify player_name", player_name, "msg_compiled", msg_compiled)
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worldedit.player_notify(player_name, msg_compiled)
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end
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--- Command execution pipeline: before `paramtext` parsing but after validation.
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--
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@ -163,27 +115,12 @@ local function run_command(cmdname, options, player_name, paramtext)
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wea_c:emit("pre-parse", tbl_event)
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local parse_result
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-- local did_error = false
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local success_xpcall, error_message = xpcall(function()
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parse_result = { options.parse(paramtext) }
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end, debug.traceback
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local success_safefn, success, parse_result = safe_function(options.parse, { paramtext }, player_name, "The command crashed when parsing the arguments.", cmdname)
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if not success_safefn then return false end -- error already sent to the player above
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--[[function(error_raw)
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did_error = true
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error_message = error_raw
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print("DEBUG:parse_result>>error", error_raw, "stack trace", debug.traceback())
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end]]--
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)
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print("DEBUG:run_command success_safefn", success_safefn, "success", success, "parse_result", parse_result)
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if not success_xpcall then
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print("DEBUG:parse_result EXIT_DUE_TO_ERROR")
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send_error(player_name, cmdname, "The command crashed when parsing the arguments.", error_message)
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print("DEBUG:parse_result EXIT_DUE_TO_ERROR __final_call__")
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return false
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end
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local success = table.remove(parse_result, 1)
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if not success then
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worldedit.player_notify(player_name, ("[//"..tostring(cmdname).."] "..tostring(parse_result[1])) or "Invalid usage (no further error message was provided by the command. This is probably a bug.)")
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return false
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88
worldeditadditions_core/core/safe_function.lua
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88
worldeditadditions_core/core/safe_function.lua
Normal file
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@ -0,0 +1,88 @@
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local weac = worldeditadditions_core
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---
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-- @module worldeditadditions_core
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-- ███████ █████ ███████ ███████ ███████ ███ ██
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-- ██ ██ ██ ██ ██ ██ ████ ██
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-- ███████ ███████ █████ █████ █████ ██ ██ ██
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ ██ ██ ██ ███████ ███████ ██ ██ ████
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local function send_error(player_name, cmdname, msg, stack_trace)
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print("DEBUG:HAI SEND_ERROR")
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local msg_compiled = table.concat({
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"[//", cmdname, "] Error: ",
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msg,
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"\n",
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"Please report this by opening an issue on GitHub! Bug report link (ctrl + click):\n",
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"https://github.com/sbrl/Minetest-WorldEditAdditions/issues/new?title=",
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weac.format.escape(stack_trace:match("^[^\n]+")), -- extract 1st line & escape
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"&body=",
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weac.format.escape(table.concat({
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[[## Describe the bug
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What's the bug? Be clear and detailed but concise in our explanation. Don't forget to include any context, error messages, logs, and screenshots required to understand the issue if applicable.
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## Reproduction steps
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Steps to reproduce the behaviour:
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1. Go to '...'
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2. Click on '....'
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3. Enter this command to '....'
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4. See error
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## System information (please complete the following information)
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- **Operating system and version:** [e.g. iOS]
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- **Minetest version:** [e.g. 5.8.0]
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- **WorldEdit version:**
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- **WorldEditAdditions version:**
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Please add any other additional specific system information here too if you think it would help.
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## Stack trace
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- **Command name:** ]],
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cmdname,
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"\n",
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"```\n",
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stack_trace,
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"\n",
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"```\n",
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}, "")),
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"\n",
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"-------------------------------------\n",
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"*** Stack trace ***\n",
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stack_trace,
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"\n",
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"-------------------------------------\n"
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}, "")
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print("DEBUG:player_notify player_name", player_name, "msg_compiled", msg_compiled)
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worldedit.player_notify(player_name, msg_compiled)
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end
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--- Calls the given function `fn` with the UNPACKED arguments from `args`, catching errors and sending the calling player a nice error message with a report link.
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--
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-- WARNING: Do NOT nest `safe_function()` calls!!!
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-- @param fn function The function to call
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-- @param args table The table of args to unpack and send to `fn` as arguments
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-- @param string|nil player_name The name of the player affected. If nil then no message is sent to the player.
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-- @param string error_msg The error message to send when `fn` inevitably crashes.
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-- @param string|nil cmdname Optional. The name of the command being run.
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-- @returns bool,any,... A success bool (true == success), and then if success == true the rest of the arguments are the (unpacked) return values from the function called.
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function safe_function(fn, args, player_name, error_msg, cmdname)
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local retvals
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local success_xpcall, stack_trace = xpcall(function()
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retvals = { fn(weac.table.unpack(args)) }
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end, debug.traceback)
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if not success_xpcall then
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send_error(player_name, cmdname, error_msg, stack_trace)
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return false
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end
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return true, weac.table.unpack(retvals)
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end
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return safe_function
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@ -86,6 +86,7 @@ dofile(wea_c.modpath.."/utils/player.lua") -- Player info functions
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wea_c.setting_handler = dofile(wea_c.modpath.."/utils/setting_handler.lua") -- AFTER parser
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wea_c.pos = dofile(modpath.."/core/pos.lua") -- AFTER EventEmitter
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wea_c.safe_function = dofile(modpath.."/core/safe_function.lua")
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wea_c.register_command = dofile(modpath.."/core/register_command.lua")
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wea_c.command_exists = dofile(modpath.."/core/command_exists.lua")
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wea_c.fetch_command_def = dofile(modpath.."/core/fetch_command_def.lua")
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