Replace config.pl by a redirection to config.py
Keep config.pl in Perl in case people are running "perl config.pl".
diff --git a/scripts/config.pl b/scripts/config.pl
index 8066bb0..bd6c7e5 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -1,296 +1,5 @@
#!/usr/bin/env perl
-#
-# This file is part of mbed TLS (https://tls.mbed.org)
-#
-# Copyright (c) 2014-2016, ARM Limited, All Rights Reserved
-#
-# Purpose
-#
-# Comments and uncomments #define lines in the given header file and optionally
-# sets their value or can get the value. This is to provide scripting control of
-# what preprocessor symbols, and therefore what build time configuration flags
-# are set in the 'config.h' file.
-#
-# Usage: config.pl [-f <file> | --file <file>] [-o | --force]
-# [set <symbol> <value> | unset <symbol> | get <symbol> |
-# full | realfull]
-#
-# Full usage description provided below.
-#
-# The following options are disabled instead of enabled with "full".
-#
-# MBEDTLS_TEST_NULL_ENTROPY
-# MBEDTLS_DEPRECATED_REMOVED
-# MBEDTLS_HAVE_SSE2
-# MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
-# MBEDTLS_ECP_DP_M221_ENABLED
-# MBEDTLS_ECP_DP_M383_ENABLED
-# MBEDTLS_ECP_DP_M511_ENABLED
-# MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
-# MBEDTLS_NO_PLATFORM_ENTROPY
-# MBEDTLS_RSA_NO_CRT
-# MBEDTLS_PSA_CRYPTO_SPM
-# MBEDTLS_PSA_INJECT_ENTROPY
-# MBEDTLS_ECP_RESTARTABLE
-# and any symbol beginning _ALT
-#
-
-use warnings;
-use strict;
-
-my $config_file = "include/mbedtls/config.h";
-my $usage = <<EOU;
-$0 [-f <file> | --file <file>] [-o | --force]
- [set <symbol> <value> | unset <symbol> | get <symbol> |
- full | realfull | baremetal]
-
-Commands
- set <symbol> [<value>] - Uncomments or adds a #define for the <symbol> to
- the configuration file, and optionally making it
- of <value>.
- If the symbol isn't present in the file an error
- is returned.
- unset <symbol> - Comments out the #define for the given symbol if
- present in the configuration file.
- get <symbol> - Finds the #define for the given symbol, returning
- an exitcode of 0 if the symbol is found, and 1 if
- not. The value of the symbol is output if one is
- specified in the configuration file.
- full - Uncomments all #define's in the configuration file
- excluding some reserved symbols, until the
- 'Module configuration options' section
- realfull - Uncomments all #define's with no exclusions
- baremetal - Sets full configuration suitable for baremetal build.
-
-Options
- -f | --file <filename> - The file or file path for the configuration file
- to edit. When omitted, the following default is
- used:
- $config_file
- -o | --force - If the symbol isn't present in the configuration
- file when setting its value, a #define is
- appended to the end of the file.
-
-EOU
-
-my @excluded = qw(
-MBEDTLS_TEST_NULL_ENTROPY
-MBEDTLS_DEPRECATED_REMOVED
-MBEDTLS_HAVE_SSE2
-MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
-MBEDTLS_CTR_DRBG_USE_128_BIT_KEY
-MBEDTLS_ECP_DP_M221_ENABLED
-MBEDTLS_ECP_DP_M383_ENABLED
-MBEDTLS_ECP_DP_M511_ENABLED
-MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
-MBEDTLS_NO_PLATFORM_ENTROPY
-MBEDTLS_RSA_NO_CRT
-MBEDTLS_NO_UDBL_DIVISION
-MBEDTLS_NO_64BIT_MULTIPLICATION
-MBEDTLS_PSA_CRYPTO_SE_C
-MBEDTLS_PSA_CRYPTO_SPM
-MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER
-MBEDTLS_PSA_INJECT_ENTROPY
-MBEDTLS_ECP_RESTARTABLE
-MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
-_ALT\s*$
-);
-
-# Things that should be disabled in "baremetal"
-my @excluded_baremetal = qw(
-MBEDTLS_TIMING_C
-MBEDTLS_FS_IO
-MBEDTLS_ENTROPY_NV_SEED
-MBEDTLS_HAVE_TIME
-MBEDTLS_HAVE_TIME_DATE
-MBEDTLS_DEPRECATED_WARNING
-MBEDTLS_HAVEGE_C
-MBEDTLS_THREADING_C
-MBEDTLS_THREADING_PTHREAD
-MBEDTLS_MEMORY_BACKTRACE
-MBEDTLS_MEMORY_BUFFER_ALLOC_C
-MBEDTLS_PLATFORM_TIME_ALT
-MBEDTLS_PLATFORM_FPRINTF_ALT
-MBEDTLS_PSA_ITS_FILE_C
-MBEDTLS_PSA_CRYPTO_SE_C
-MBEDTLS_PSA_CRYPTO_STORAGE_C
-);
-
-# Things that should be enabled in "full" even if they match @excluded
-my @non_excluded = qw(
-PLATFORM_[A-Z0-9]+_ALT
-);
-
-# Things that should be enabled in "baremetal"
-my @non_excluded_baremetal = qw(
-MBEDTLS_NO_PLATFORM_ENTROPY
-);
-
-# Process the command line arguments
-
-my $force_option = 0;
-
-my ($arg, $name, $value, $action);
-
-while ($arg = shift) {
-
- # Check if the argument is an option
- if ($arg eq "-f" || $arg eq "--file") {
- $config_file = shift;
-
- -f $config_file or die "No such file: $config_file\n";
-
- }
- elsif ($arg eq "-o" || $arg eq "--force") {
- $force_option = 1;
-
- }
- else
- {
- # ...else assume it's a command
- $action = $arg;
-
- if ($action eq "full" || $action eq "realfull" || $action eq "baremetal" ) {
- # No additional parameters
- die $usage if @ARGV;
-
- }
- elsif ($action eq "unset" || $action eq "get") {
- die $usage unless @ARGV;
- $name = shift;
-
- }
- elsif ($action eq "set") {
- die $usage unless @ARGV;
- $name = shift;
- $value = shift if @ARGV;
-
- }
- else {
- die "Command '$action' not recognised.\n\n".$usage;
- }
- }
-}
-
-# If no command was specified, exit...
-if ( not defined($action) ){ die $usage; }
-
-# Check the config file is present
-if (! -f $config_file) {
-
- chdir '..' or die;
-
- # Confirm this is the project root directory and try again
- if ( !(-d 'scripts' && -d 'include' && -d 'library' && -f $config_file) ) {
- die "If no file specified, must be run from the project root or scripts directory.\n";
- }
-}
-
-
-# Now read the file and process the contents
-
-open my $config_read, '<', $config_file or die "read $config_file: $!\n";
-my @config_lines = <$config_read>;
-close $config_read;
-
-# Add required baremetal symbols to the list that is included.
-if ( $action eq "baremetal" ) {
- @non_excluded = ( @non_excluded, @non_excluded_baremetal );
-}
-
-my ($exclude_re, $no_exclude_re, $exclude_baremetal_re);
-if ($action eq "realfull") {
- $exclude_re = qr/^$/;
- $no_exclude_re = qr/./;
-} else {
- $exclude_re = join '|', @excluded;
- $no_exclude_re = join '|', @non_excluded;
-}
-if ( $action eq "baremetal" ) {
- $exclude_baremetal_re = join '|', @excluded_baremetal;
-}
-
-my $config_write = undef;
-if ($action ne "get") {
- open $config_write, '>', $config_file or die "write $config_file: $!\n";
-}
-
-my $done;
-for my $line (@config_lines) {
- if ($action eq "full" || $action eq "realfull" || $action eq "baremetal" ) {
- if ($line =~ /name SECTION: Module configuration options/) {
- $done = 1;
- }
-
- if (!$done && $line =~ m!^//\s?#define! &&
- ( $line !~ /$exclude_re/ || $line =~ /$no_exclude_re/ ) &&
- ( $action ne "baremetal" || ( $line !~ /$exclude_baremetal_re/ ) ) ) {
- $line =~ s!^//\s?!!;
- }
- if (!$done && $line =~ m!^\s?#define! &&
- ! ( ( $line !~ /$exclude_re/ || $line =~ /$no_exclude_re/ ) &&
- ( $action ne "baremetal" || ( $line !~ /$exclude_baremetal_re/ ) ) ) ) {
- $line =~ s!^!//!;
- }
- } elsif ($action eq "unset") {
- if (!$done && $line =~ /^\s*#define\s*$name\b/) {
- $line = '//' . $line;
- $done = 1;
- }
- } elsif (!$done && $action eq "set") {
- if ($line =~ m!^(?://)?\s*#define\s*$name\b!) {
- $line = "#define $name";
- $line .= " $value" if defined $value && $value ne "";
- $line .= "\n";
- $done = 1;
- }
- } elsif (!$done && $action eq "get") {
- if ($line =~ /^\s*#define\s*$name(?:\s+(.*?))\s*(?:$|\/\*|\/\/)/) {
- $value = $1;
- $done = 1;
- }
- }
-
- if (defined $config_write) {
- print $config_write $line or die "write $config_file: $!\n";
- }
-}
-
-# Did the set command work?
-if ($action eq "set" && $force_option && !$done) {
-
- # If the force option was set, append the symbol to the end of the file
- my $line = "#define $name";
- $line .= " $value" if defined $value && $value ne "";
- $line .= "\n";
- $done = 1;
-
- print $config_write $line or die "write $config_file: $!\n";
-}
-
-if (defined $config_write) {
- close $config_write or die "close $config_file: $!\n";
-}
-
-if ($action eq "get") {
- if ($done) {
- if ($value ne '') {
- print "$value\n";
- }
- exit 0;
- } else {
- # If the symbol was not found, return an error
- exit 1;
- }
-}
-
-if ($action eq "full" && !$done) {
- die "Configuration section was not found in $config_file\n";
-
-}
-
-if ($action ne "full" && $action ne "unset" && !$done) {
- die "A #define for the symbol $name was not found in $config_file\n";
-}
-
-__END__
+# Backward compatibility redirection
+my $py = $0;
+$py =~ s/\.pl$/.py/;
+exec 'python3', $py, @ARGV