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src/parallel: refactor: xargs_computations

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Ole Tange 2010-05-15 23:41:56 +02:00
parent 3ab7103c70
commit 34ed3a0ae6
1 changed files with 44 additions and 39 deletions
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83
src/parallel
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@ -1270,46 +1270,10 @@ sub generate_command_line {
my $command = shift;
my ($job_line,$last_good);
my ($next_arg,@quoted_args,@quoted_args_no_ext,$arg_length);
my ($number_of_substitution) = 1;
my ($number_of_substitution_no_ext) = 0;
my ($length_of_context) = 0;
my ($length_of_command_no_args);
my ($number_of_substitution,$number_of_substitution_no_ext,$length_of_context,$length_of_command_no_args,$spaces);
if($Global::xargs or $Global::Xargs) {
# Count number of {}'s on the command line
$number_of_substitution = ($command =~ s/\Q$Global::replacestring\E/$Global::replacestring/go);
$number_of_substitution ||= 1;
}
if($Global::xargs or $Global::Xargs) {
# Count number of {.}'s on the command line
$number_of_substitution_no_ext =
($command =~ s/\Q$Global::replace_no_ext\E/$Global::replace_no_ext/go);
$number_of_substitution_no_ext ||= 0;
}
my $spaces=0;
if($Global::xargs or $Global::Xargs) {
my $c = $command;
# count number of replacements
my $no_of_replace = 0;
$no_of_replace++ while ($c =~ m/\Q$Global::replacestring\E/g);
my $no_of_no_ext = 0;
$no_of_no_ext++ while ($c =~ m/\Q$Global::replace_no_ext\E/g);
if($Global::xargs) {
# remove all {}s
$c =~ s/\Q$Global::replacestring\E|\Q$Global::replace_no_ext\E//og;
$length_of_command_no_args = length($c) - $no_of_replace - $no_of_no_ext;
$length_of_context = 0;
$spaces = 1;
}
if($Global::Xargs) {
$c =~ s/\S*\Q$Global::replacestring\E\S*//go;
$c =~ s/\S*\Q$Global::replace_no_ext\E\S*//go;
$length_of_command_no_args = length($c) - 1;
$length_of_context = length($command) - $length_of_command_no_args
- $no_of_replace * length($Global::replacestring)
- $no_of_no_ext * length($Global::replace_no_ext);
}
($number_of_substitution, $number_of_substitution_no_ext,$spaces,
$length_of_command_no_args,$length_of_context) = xargs_computations($command);
}
my $number_of_args = 0;
@ -1329,6 +1293,7 @@ sub generate_command_line {
push (@quoted_args_no_ext, $next_arg_no_ext);
$number_of_args++;
if(not $Global::xargs and not $Global::Xargs) {
# No xargs-mode: Just one argument per line
last;
} else {
# Emulate xargs if there is a command and -x or -X is set
@ -1377,6 +1342,46 @@ sub generate_command_line {
return $job_line;
}
sub xargs_computations {
my $command = shift;
if(not @Calculated::xargs_computations) {
my ($length_of_command_no_args, $length_of_context, $spaces);
# Count number of {}'s on the command line
my $no_of_replace = ($command =~ s/\Q$Global::replacestring\E/$Global::replacestring/go);
my $number_of_substitution = $no_of_replace || 1;
# Count number of {.}'s on the command line
my $no_of_no_ext = ($command =~ s/\Q$Global::replace_no_ext\E/$Global::replace_no_ext/go);
my $number_of_substitution_no_ext = $no_of_no_ext || 0;
# Count
my $c = $command;
if($Global::xargs) {
# remove all {}s
$c =~ s/\Q$Global::replacestring\E|\Q$Global::replace_no_ext\E//og;
$length_of_command_no_args = length($c) - $no_of_replace - $no_of_no_ext;
$length_of_context = 0;
$spaces = 1;
}
if($Global::Xargs) {
$c =~ s/\S*\Q$Global::replacestring\E\S*//go;
$c =~ s/\S*\Q$Global::replace_no_ext\E\S*//go;
$length_of_command_no_args = length($c) - 1;
$length_of_context = length($command) - $length_of_command_no_args
- $no_of_replace * length($Global::replacestring)
- $no_of_no_ext * length($Global::replace_no_ext);
$spaces = 0;
}
@Calculated::xargs_computations =
($number_of_substitution, $number_of_substitution_no_ext,
$spaces,$length_of_command_no_args,$length_of_context);
}
return (@Calculated::xargs_computations);
}
sub shell_quote {
# Quote the string so shell will not expand any special chars
my (@strings) = (@_);