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Adds 'get' command to scripts/config.pl to retrieve config state

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Adds 'get' command to indicate if the option is enabled in the given
configuration file, and to returns it's value if one has been set.
This commit is contained in:
Simon Butcher 2016-06-21 10:09:25 +01:00
parent d96e526093
commit 4ae869139a
1 changed files with 30 additions and 10 deletions
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40
scripts/config.pl
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@ -7,12 +7,13 @@
# Purpose
#
# Comments and uncomments #define lines in the given header file and optionally
# sets their 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.
# 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> | full | realfull]
# [set <symbol> <value> | unset <symbol> | get <symbol> |
# full | realfull]
#
# Full usage description provided below.
#
@ -43,18 +44,23 @@ use strict;
my $config_file = "include/mbedtls/config.h";
my $usage = <<EOU;
$0 [-f <file> | --file <file>] [-o | --force]
[set <symbol> <value> | unset <symbol> | full | realfull]
[set <symbol> <value> | unset <symbol> | get <symbol> |
full | realfull]
Commands
set <symbol> [<value] - Uncomments or adds a #define for the <symnol> to
set <symbol> [<value>] - Uncomments or adds a #define for the <symbol> to
the configuration file, and optionally making it
of <value>.
If the symbol isn't present in the file an error
is returned.
unset <symbol> - Comments out any #define present in the
configuration file.
unset <symbol> - Comments out the #define for the given symbol if
present in the configuration file.
get <symbol> - Finds the #define for the given symbol, returning
an exitcode of 0 if the symbol is found, and -1 if
not. The value of the symbol is output if one is
specified in the configuration file.
full - Uncomments all #define's in the configuration file
excluding some reserved symbols, until the
excluding some reserved symbols, until the
'Module configuration options' section
realfull - Uncomments all #define's with no exclusions
@ -122,7 +128,7 @@ while ($arg = shift) {
die $usage if @ARGV;
}
elsif ($action eq "unset") {
elsif ($action eq "unset" || $action eq "get") {
die $usage unless @ARGV;
$name = shift;
@ -195,6 +201,11 @@ for my $line (@config_lines) {
$line .= "\n";
$done = 1;
}
} elsif (!$done && $action eq "get") {
if ($line =~ /^\s*#define\s*$name\s*(.*)\s*\b/) {
$value = $1;
$done = 1;
}
}
print $config_write $line;
@ -214,6 +225,15 @@ if ($action eq "set"&& $force_option && !$done) {
close $config_write;
if ($action eq "get" && $done) {
if ($value ne '') {
print $value;
}
exit 0;
} else {
exit -1;
}
if ($action eq "full" && !$done) {
die "Configuration section was not found in $config_file\n";