pjs/tools/release/Bootstrap/Config.pm

235 строки
6.5 KiB
Perl
Исходник Обычный вид История

2006-12-05 22:58:38 +03:00
#
# Config object for release automation
#
package Bootstrap::Config;
use strict;
use POSIX "uname";
2007-04-18 02:49:31 +04:00
use File::Copy qw(move);
2006-12-05 22:58:38 +03:00
# shared static config
my %config;
# single shared instance
my $singleton = undef;
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
return $singleton if defined $singleton;
my $this = {};
bless($this, $class);
$this->Parse();
$singleton = $this;
return $this;
}
sub Parse {
my $this = shift;
2007-04-18 02:49:31 +04:00
open(CONFIG, "< bootstrap.cfg")
|| die("Can't open config file bootstrap.cfg");
2006-12-05 22:58:38 +03:00
while (<CONFIG>) {
chomp; # no newline
s/#.*//; # no comments
2006-12-05 22:58:38 +03:00
s/^\s+//; # no leading white
s/\s+$//; # no trailing white
next unless length; # anything left?
2006-12-05 22:58:38 +03:00
my ($var, $value) = split(/\s*=\s*/, $_, 2);
$config{$var} = $value;
2006-12-05 22:58:38 +03:00
}
2007-04-18 02:49:31 +04:00
close(CONFIG);
2006-12-05 22:58:38 +03:00
}
##
# Get checks to see if a variable exists and returns it.
# Returns scalar
#
# This method supports system-specific overrides, or "sysvar"s.
# For example, if a caller is on win32 and does
# Get(sysvar => "buildDir") and win32_buildDir exists, the value of
# win32_buildDir will be returned. If not, the value of buildDir will
# be returned. Otherwise, the die() assertion will be hit.
##
2006-12-05 22:58:38 +03:00
sub Get {
my $this = shift;
my %args = @_;
my $var = $args{'var'};
# sysvar will attempt to prepend the OS name to the requested var
my $sysvar = $args{'sysvar'};
2006-12-05 22:58:38 +03:00
if ((! defined($args{'var'})) && (! defined($args{'sysvar'}))) {
die "ASSERT: Bootstep::Config::Get(): null var requested";
} elsif ((defined($args{'var'})) && (defined($args{'sysvar'}))) {
die "ASSERT: Bootstep::Config::Get(): both var and sysvar requested";
}
if (defined($args{'sysvar'})) {
# look for a system specific var first
my $osname = $this->SystemInfo(var => 'osname');
my $sysvarOverride = $osname . '_' . $sysvar;
if ($this->Exists(var => $sysvarOverride)) {
return $config{$sysvarOverride};
} elsif ($this->Exists(var => $sysvar)) {
return $config{$sysvar};
} else {
die("No such system config variable: $sysvar");
}
} elsif ($this->Exists(var => $var)) {
2006-12-05 22:58:38 +03:00
return $config{$var};
} else {
die("No such config variable: $var");
}
}
##
# Exists checks to see if a config variable exists.
# Returns boolean (1 or 0)
#
# This method supports system-specific overrides, or "sysvar"s.
# For example, if a caller is on win32 and does
# Exists(sysvar => "win32_buildDir") and only buildDir exists, a 0
# will be returned. There is no "fallback" as in the case of Get.
##
sub Exists {
my $this = shift;
my %args = @_;
my $var = $args{'var'};
# sysvar will attempt to prepend the OS name to the requested var
my $sysvar = $args{'sysvar'};
if ((! defined($args{'var'})) && (! defined($args{'sysvar'}))) {
die "ASSERT: Bootstep::Config::Get(): null var requested";
} elsif ((defined($args{'var'})) && (defined($args{'sysvar'}))) {
die "ASSERT: Bootstep::Config::Get(): both var and sysvar requested";
}
if (defined($args{'sysvar'})) {
# look for a system specific var first
my $osname = $this->SystemInfo(var => 'osname');
my $sysvarOverride = $osname . '_' . $sysvar;
if (exists($config{$sysvarOverride})) {
return 1;
} elsif (exists($config{$sysvar})) {
return 1;
} else {
return 0;
}
} else {
return exists($config{$var});
}
}
sub SystemInfo {
my $this = shift;
my %args = @_;
my $var = $args{'var'};
my ($sysname, $hostname, $release, $version, $machine ) = uname;
if ($var eq 'sysname') {
return $sysname;
} elsif ($var eq 'hostname') {
return $hostname;
} elsif ($var eq 'release') {
return $release;
} elsif ($var eq 'version') {
return $version;
} elsif ($var eq 'machine') {
return $machine;
} elsif ($var eq 'osname') {
if ($sysname =~ /cygwin/i) {
return 'win32';
} elsif ($sysname =~ /darwin/i) {
return 'macosx';
} elsif ($sysname =~ /linux/i) {
return 'linux';
} else {
die("Unrecognized OS: $sysname");
}
} else {
die("No system info named $var");
}
2007-04-18 02:49:31 +04:00
}
2007-04-18 02:49:31 +04:00
##
# Bump - modifies config files
#
# Searches and replaces lines of the form:
# # CONFIG: $BuildTag = '%productTag%_RELEASE';
# $BuildTag = 'FIREFOX_1_5_0_9_RELEASE';
#
# The comment containing "CONFIG:" is parsed, and the value in between %%
# is treated as the key. The next line will be overwritten by the value
# matching this key in the private %config hash.
#
# If any of the requested keys are not found, this function calls die().
##
sub Bump {
my $this = shift;
my %args = @_;
my $config = new Bootstrap::Config();
my $configFile = $args{'configFile'};
if (! defined($configFile)) {
die('ASSERT: Bootstrap::Config::Bump - configFile is a required argument');
}
my $tmpFile = $configFile . '.tmp';
open(INFILE, "< $configFile")
or die ("Bootstrap::Config::Bump - Could not open $configFile for reading: $!");
open(OUTFILE, "> $tmpFile")
or die ("Bootstrap::Config::Bump - Could not open $tmpFile for writing: $!");
my $skipNextLine = 0;
foreach my $line (<INFILE>) {
if ($skipNextLine) {
$skipNextLine = 0;
next;
} elsif ($line =~ /^# CONFIG:\s+/) {
print OUTFILE $line;
$skipNextLine = 1;
my $interpLine = $line;
$interpLine =~ s/^#\s+CONFIG:\s+//;
foreach my $variable (grep(/%[\w\-]+%/, split(/\s+/, $line))) {
2007-04-18 02:49:31 +04:00
my $key = $variable;
if (! ($key =~ s/.*%([\w\-]+)%.*/$1/)) {
2007-04-18 02:49:31 +04:00
die("ASSERT: could not parse $variable");
}
if (! $config->Exists(sysvar => $key)) {
2007-04-18 02:49:31 +04:00
die("ASSERT: no replacement found for $key");
}
my $value = $config->Get(sysvar => $key);
2007-04-18 02:49:31 +04:00
$interpLine =~ s/\%$key\%/$value/g;
}
print OUTFILE $interpLine;
} else {
print OUTFILE $line;
}
}
close(INFILE) or die ("Bootstrap::Config::Bump - Could not close $configFile for reading: $!");
close(OUTFILE) or die ("Bootstrap::Config::Bump - Could not close $tmpFile for writing: $!");
move($tmpFile, $configFile)
or die("Cannot rename $tmpFile to $configFile: $!");
}
2006-12-05 22:58:38 +03:00
1;