Add score impact for each error/warning/info

Author: flashcode

README.md

@@ -37,13 +37,17 @@ levels:
 
 ### Error: missing_email
 
+**Score**: -15
+
 **Issue**: the e-mail is required if the script is submitted in the official
 scripts repository (error can be ignored in other cases).
 
 **How to fix**: add a contact e-mail in the header of the script.
 
 ### Error: missing_infolist_free
 
+**Score**: -20
+
 **Issue**: when an infolist is asked to WeeChat with `infolist_get`, it must
 always be freed by a call to `infolist_free`, otherwise this causes a memory leak.
 
@@ -52,6 +56,8 @@ always be freed by a call to `infolist_free`, otherwise this causes a memory lea
 
 ### Error: python2_bin (Python script only)
 
+**Score**: -25
+
 **Issue**: the info `python2_bin` is used to find the path to Python 2.x
 interpreter. Since WeeChat is compiled with Python 3 and that all scripts aim
 to be compatible with Python 3, this info must not be used at all any more.
@@ -63,12 +69,16 @@ or [hook_process_hashtable](https://weechat.org/files/doc/stable/weechat_plugin_
 
 ### Error: mixed_tabs_spaces (Python script only)
 
+**Score**: -25
+
 **Issue**: mixed tabs and spaces are used for indentation.
 
 **How to fix**: replace all tabs by spaces for indentation.
 
 ### Warning: sys_exit (Python script only)
 
+**Score**: -10
+
 **Issue**: the function `sys.exit()` causes WeeChat to exit itself, so it
 must not be used in scripts.\
 This is a warning and not an error because if it is used when the import of
@@ -81,20 +91,26 @@ consider setting a variable instead that will prevent the call to
 
 ### Warning: deprecated_hook_completion_get_string
 
+**Score**: -8
+
 **Issue**: the function `hook_completion_get_string` is deprecated and should
 not be used any more since WeeChat 2.9.
 
 **How to fix**: call the function `completion_get_string`.
 
 ### Warning: deprecated_hook_completion_list_add
 
+**Score**: -8
+
 **Issue**: the function `hook_completion_list_add` is deprecated and should
 not be used any more since WeeChat 2.9.
 
 **How to fix**: call the function `completion_list_add`.
 
 ### Warning: modifier_irc_in
 
+**Score**: -10
+
 **Issue**: the modifier `irc_in_xxx` sends the raw IRC message to the callback
 which may not be UTF-8 valid. This is a problem in some languages like Python.
 
@@ -104,20 +120,26 @@ to receive invalid UTF-8 data.
 
 ### Warning: signal_irc_out
 
+**Score**: -10
+
 **Issue**: the signal `irc_out_xxx` sends the raw IRC message to the callback
 which may not be UTF-8 valid. This is a problem in some languages like Python.
 
 **How to fix**: use the signal `irc_out1_xxx`.
 
 ### Warning: signal_irc_outtags
 
+**Score**: -10
+
 **Issue**: the signal `irc_outtags_xxx` sends the raw IRC message to the callback
 which may not be UTF-8 valid. This is a problem in some languages like Python.
 
 **How to fix**: use the signal `irc_out1_xxx`.
 
 ### Warning: hook_process_url
 
+**Score**: -5
+
 **Issue**: the function `hook_process` used with `url:` should be
 replaced by the new function `hook_url` added in WeeChat 4.1.0, which uses
 a thread instead of a new process, making it more lightweight and thus
@@ -128,6 +150,8 @@ in code, as the function is different from `hook_process`.
 
 ### Warning: hook_process_hashtable_url
 
+**Score**: -5
+
 **Issue**: the function `hook_process_hashtable` used with `url:` should be
 replaced by the new function `hook_url` added in WeeChat 4.1.0, which uses
 a thread instead of a new process, making it more lightweight and thus
@@ -138,20 +162,26 @@ in code, as the function is different from `hook_process_hashtable`.
 
 ### Info: unneeded_shebang
 
+**Score**: -1
+
 **Issue**: the shebang is not needed, except if the script can be called
 outside WeeChat, which is rare.
 
 **How to fix**: remove the shebang, unless it is really needed.
 
 ### Info: url_weechat
 
+**Score**: -1
+
 **Issue**: the WeeChat site URL is not the official one.
 
 **How to fix**: replace the URL by the official one: [https://weechat.org](https://weechat.org)
 (`https` and no `www`).
 
 ### Info: missing_spdx_copyright
 
+**Score**: -1
+
 **Issue**: the copyright tag `SPDX-FileCopyrightText` is missing in the script header.
 
 **How to fix**: add the [SPDX](https://spdx.dev/) copyright tag `SPDX-FileCopyrightText`
@@ -160,6 +190,8 @@ in the script header
 
 ### Info: missing_spdx_license
 
+**Score**: -1
+
 **Issue**: the license tag `SPDX-License-Identifier` is missing in the script header.
 
 **How to fix**: add the [SPDX](https://spdx.dev/) license tag `SPDX-License-Identifier`