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parallel: Evaluate --tagstring {=...=} for each line with --lb.

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Ole Tange 2019-06-26 20:35:00 +02:00
parent a24bef3d03
commit e8d7b1627a
2 changed files with 31 additions and 12 deletions
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2
doc/release_new_version
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@ -228,6 +228,8 @@ New in this release:
https://techieroop.com/how-to-run-multiple-bash-scripts-in-parallel/
https://blogs.oracle.com/solaris/announcing-oracle-solaris-114-sru10
* Bug fixes and man page updates.
Get the book: GNU Parallel 2018 http://www.lulu.com/shop/ole-tange/gnu-parallel-2018/paperback/product-23558902.html

31
src/parallel
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@ -1593,14 +1593,21 @@ sub parse_options(@) {
if(defined $opt::silent) { $Global::verbose = 0; }
if(defined $opt::null) { $/ = "\0"; }
if(defined $opt::d) { $/ = unquote_printf($opt::d) }
parse_replacement_string_options();
if(defined $opt::tagstring) {
$opt::tagstring = unquote_printf($opt::tagstring);
if($opt::tagstring =~ /\Q$Global::parensleft\E.*\Q$Global::parensright\E/
and
$opt::linebuffer) {
# --tagstring contains {= =} and --linebuffer =>
# recompute replacement string for each use (do not cache)
$Global::cache_replacement_eval = 0;
}
}
if(defined $opt::interactive) { $Global::interactive = $opt::interactive; }
if(defined $opt::quote) { $Global::quoting = 1; }
if(defined $opt::r) { $Global::ignore_empty = 1; }
if(defined $opt::verbose) { $Global::stderr_verbose = 1; }
parse_replacement_string_options();
if(defined $opt::eof) { $Global::end_of_file_string = $opt::eof; }
if(defined $opt::max_args) {
$Global::max_number_of_args = $opt::max_args;
@ -1993,6 +2000,7 @@ sub init_globals() {
# Quote replacement strings
$Global::quote_replace = 1;
$Global::total_completed = 0;
$Global::cache_replacement_eval = 1;
# Read only table with default --rpl values
%Global::replace =
(
@ -9537,8 +9545,8 @@ sub should_be_retried($) {
sub print($) {
# Print the output of the jobs
# Returns: N/A
my $self = shift;
::debug("print", ">>joboutput ", $self->replaced(), "\n");
if($opt::dryrun) {
# Nothing was printed to this job:
@ -9792,12 +9800,21 @@ sub print_linebuffer($) {
# One or more complete lines were found
if($opt::tag or defined $opt::tagstring) {
# Replace ^ with $tag within the full line
if($Global::cache_replacement_eval) {
# Replace with the same value for tag
my $tag = $self->tag();
unshift @$halfline_ref, $tag;
# TODO --recend that can be partially in @$halfline_ref
substr($buf,0,$i-1) =~ s/(?<=[\n\r])/$tag/gm;
# The length changed, so find the new ending pos
$i = (rindex($buf,"\n")+1) || (rindex($buf,"\r")+1);
unshift @$halfline_ref, $tag;
} else {
# Replace with freshly computed value of tag
unshift @$halfline_ref, $self->tag();
substr($buf,0,$i-1) =~ s/(?<=[\n\r])/$self->tag()/gme;
# The length changed, so find the new ending pos
$i = (rindex($buf,"\n")+1) || (rindex($buf,"\r")+1);
}
}
# Print the partial line (halfline) and the last half
print $out_fd @$halfline_ref, substr($buf,0,$i);
@ -9939,7 +9956,7 @@ sub print_joblog($) {
sub tag($) {
my $self = shift;
if(not defined $self->{'tag'}) {
if(not defined $self->{'tag'} or not $Global::cache_replacement_eval) {
if($opt::tag or defined $opt::tagstring) {
$self->{'tag'} = $self->{'commandline'}->
replace_placeholders([$opt::tagstring],0,0)."\t";
@ -11810,7 +11827,9 @@ sub total_jobs() {
# but it looks nice to be able to say {= $job->slot() =}
$job = shift;
$perlexpr =~ s/^(-?\d+)? *//; # Positional replace treated as normal replace
if(not $self->{'cache'}{$perlexpr}) {
if(not $Global::cache_replacement_eval
or
not $self->{'cache'}{$perlexpr}) {
# Only compute the value once
# Use $_ as the variable to change
local $_;
@ -12714,7 +12733,6 @@ sub main() {
}
set_input_source_header(\@command,\@input_source_fh);
if($opt::filter_hosts and (@opt::sshlogin or @opt::sshloginfile)) {
# Parallel check all hosts are up. Remove hosts that are down
filter_hosts();
@ -12749,7 +12767,6 @@ sub main() {
# Compute $Global::max_jobs_running
# Must be done after ungetting any --pipepart jobs.
max_jobs_running();
init_run_jobs();
my $sem;
if($Global::semaphore) {