[cmake] refactor: Use CPM over submodules (#143)

Transfers the majority of submodules and large externals to CPM, using source archives rather than full Git clones. Not only does this save massive amounts of clone and configure time, but dependencies are grabbed on-demand rather than being required by default. Additionally, CPM will (generally) automatically search for system dependencies, though certain dependencies have options to control this.

Testing shows gains ranging from 5x to 10x in terms of overall clone/configure time.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/143
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

1 files changed, 0 insertions, 125 deletions

diff --git a/externals/mbedtls/programs/test/zeroize.c b/externals/mbedtls/programs/test/zeroize.c
deleted file mode 100644
index dbc394e35b..0000000000
--- a/externals/mbedtls/programs/test/zeroize.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Zeroize application for debugger-driven testing
- *
- * This is a simple test application used for debugger-driven testing to check
- * whether calls to mbedtls_platform_zeroize() are being eliminated by compiler
- * optimizations. This application is used by the GDB script at
- * tests/scripts/test_zeroize.gdb: the script sets a breakpoint at the last
- * return statement in the main() function of this program. The debugger
- * facilities are then used to manually inspect the memory and verify that the
- * call to mbedtls_platform_zeroize() was not eliminated.
- *
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
- *
- *  This file is provided under the Apache License 2.0, or the
- *  GNU General Public License v2.0 or later.
- *
- *  **********
- *  Apache License 2.0:
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- *  **********
- *
- *  **********
- *  GNU General Public License v2.0 or later:
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- *  **********
- */
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#include <stdio.h>
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_printf     printf
-#define mbedtls_exit       exit
-#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
-#endif
-
-#include "mbedtls/platform_util.h"
-
-#define BUFFER_LEN 1024
-
-void usage( void )
-{
-    mbedtls_printf( "Zeroize is a simple program to assist with testing\n" );
-    mbedtls_printf( "the mbedtls_platform_zeroize() function by using the\n" );
-    mbedtls_printf( "debugger. This program takes a file as input and\n" );
-    mbedtls_printf( "prints the first %d characters. Usage:\n\n", BUFFER_LEN );
-    mbedtls_printf( "       zeroize <FILE>\n" );
-}
-
-int main( int argc, char** argv )
-{
-    int exit_code = MBEDTLS_EXIT_FAILURE;
-    FILE *fp;
-    char buf[BUFFER_LEN];
-    char *p = buf;
-    char *end = p + BUFFER_LEN;
-    int c;
-
-    if( argc != 2 )
-    {
-        mbedtls_printf( "This program takes exactly 1 agument\n" );
-        usage();
-        mbedtls_exit( exit_code );
-    }
-
-    fp = fopen( argv[1], "r" );
-    if( fp == NULL )
-    {
-        mbedtls_printf( "Could not open file '%s'\n", argv[1] );
-        mbedtls_exit( exit_code );
-    }
-
-    while( ( c = fgetc( fp ) ) != EOF && p < end - 1 )
-        *p++ = (char)c;
-    *p = '\0';
-
-    if( p - buf != 0 )
-    {
-        mbedtls_printf( "%s\n", buf );
-        exit_code = MBEDTLS_EXIT_SUCCESS;
-    }
-    else
-        mbedtls_printf( "The file is empty!\n" );
-
-    fclose( fp );
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-
-    mbedtls_exit( exit_code ); // GDB_BREAK_HERE -- don't remove this comment!
-}