ci: Add uncrustify config and checker

Based on what we added to phoc recently

.gitlab-ci/uncrustify.cfg

@@ -0,0 +1,109 @@
+# Indent by two spaces
+indent_columns                  = 2
+# No tabs
+indent_with_tabs                = 0
+# Line length
+code_width                      = 100
+
+#
+# Keywords and operators
+#
+# Add between 'do' and '{'.
+sp_do_brace_open                = add
+# Add space between '}' and 'while'.
+sp_brace_close_while            = add
+# Add 'while' and '('.
+sp_while_paren_open             = add
+# Add or remove space around boolean operators '&&' and '||'.
+sp_bool                         = add
+# Ternary operator
+sp_cond_ternary_short           = remove
+# Remove newline between 'struct and '{'.
+nl_struct_brace                 = remove
+# Remove newline between 'if' and '{'.
+nl_if_brace                     = remove
+# Remove newline between '}' and 'else'.
+nl_brace_else                   = remove
+# Remove newline between 'else' and '{'.
+nl_else_brace                   = remove
+# Remove newline between 'else' and 'if'.
+nl_else_if                      = remove
+# Add or remove newline between 'for' and '{'.
+nl_for_brace                    = remove
+# Treat iterators as for loops:
+set FOR wl_list_for_each wl_list_for_each_reverse wl_list_for_each_safe
+
+#
+# Function declarations, defintions and calls
+#
+# Add space between function name and '(' on function declaration.
+sp_func_proto_paren             = add
+# Add or remove space between function name and '()' on function declaration
+# without parameters.
+sp_func_proto_paren_empty       = add
+# Add space between function name and '(' on function definition.
+sp_func_def_paren               = add
+# Add or remove space between function name and '(' on function calls.
+sp_func_call_paren              = add
+# Whether to force indentation of function definitions to start in column 1.
+indent_func_def_force_col1      = true
+# Add newline between return type and function name in a function definition.
+nl_func_type_name               = add
+# Add newline between function signature and '{'.
+nl_fdef_brace                   = add
+# Whether to align variable definitions in prototypes and functions.
+align_func_params               = true
+# The span for aligning function prototypes.
+align_func_proto_span           = 8
+# Add space between 'decltype(...)' and word.
+sp_after_decltype               = add
+# Add or remove space after a pointer star '*', if followed by a function
+# prototype or function definition.
+sp_after_ptr_star_func          = remove
+# Add or remove newline between a function call's ')' and '{', as in
+# 'list_for_each(item, &list) { }'.
+nl_fcall_brace                  = add
+
+#
+# Typedefs
+#
+# Add space between '}' and the name of a typedef on the same line.
+sp_brace_typedef                = add
+
+#
+# Comments
+#
+# Add space after the opening of a C++ comment, i.e. '// A' vs. '//A'.
+sp_cmt_cpp_start                = add
+
+#
+# Preprocessor
+#
+# Add or remove space between #else or #endif and a trailing comment.
+sp_endif_cmt                    = add
+
+# Newlines at the start and end of the file.
+nl_start_of_file                = remove
+nl_end_of_file                  = add
+nl_end_of_file_min              = 1
+
+#
+# Variable definitions
+#
+# How to align the '*' in variable definitions.
+#
+# 0: Part of the type     'void *   foo;' (default)
+# 1: Part of the variable 'void     *foo;'
+# 2: Dangling             'void    *foo;'
+# Dangling: the '*' will not be taken into account when aligning.
+align_var_def_star_style        = 2
+# Same for typedefs
+align_typedef_star_style        = 2
+# The gap for aligning struct/union member definitions.
+align_var_struct_gap            = 1
+# The span for aligning struct/union member definitions.
+align_var_struct_span           = 8
+# Remove space between pointer stars '*'.
+sp_between_ptr_star             = remove
+# Add space before '(' of control statements ('if', 'for', 'switch', 'while', etc.)
+sp_before_sparen                = add