Re^3: wrapping bash and astronomy

" can't figure out why the shebang and comments endure: ... How is my regex not sieving out the comments?"

Your regex, /^#*$/, is anchored at the start (^) and end ($). Consider:

$ perl -E '
    my $x = "#shebang\n\nstatement1\n#comment\nstatement2";
    my @lines = split /\n/, $x;

    say "All lines:";
    say for @lines;
    say "-" x 40;

    say "Your regex:";
    say for grep ! /^#*$/, @lines;
    say "-" x 40;

    say "Better regex:";
    say for grep ! /^#/, @lines;
    say "-" x 40;
'
All lines:
#shebang

statement1
#comment
statement2
----------------------------------------
Your regex:
#shebang
statement1
#comment
statement2
----------------------------------------
Better regex:

statement1
statement2
----------------------------------------
[download]

Note how your regex is removing blank lines. Did you want that?

Addendum: If the answer to that last question is yes, you can use /^(?:#|$)/.

— Ken

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Re^4: wrapping bash and astronomy
by Aldebaran (Curate) on Mar 08, 2023 at 06:34 UTC

Thx, kcott,I can hardly believe this thing works, but it almost does:

fritz@laptop:~/Documents/gitlab1$ ./1.wrap.pl 3.git.sh
Time is Tue Mar  7 22:43:27 2023 
Julian day is 2460011.73850694 
./1.wrap.pl 
line  matched #!/bin/bash

line  matched #echo "starting fresh with rm -rf .git"

line  matched #rm -rf .git | tee 1.txt

line  matched #git init

line  matched #ls >README.md

line  matched #git remote add origin git@gitlab.com:perlmonks/$1.git

line  matched #git push -uf master main | tee 2.txt

line  matched 

pwd >2.txt
git add *.pl
git add *.sh
git add *.txt
git commit -m 'next revision' | tee 2.txt
git push -uf origin master | tee 2.txt

cardinality: 6
Enumerating objects: 13, done.
Counting objects: 100% (13/13), done.
Delta compression using up to 4 threads
Compressing objects: 100% (12/12), done.
Writing objects: 100% (12/12), 5.47 KiB | 224.00 KiB/s, done.
Total 12 (delta 3), reused 0 (delta 0)
remote: 
remote: To create a merge request for master, visit:
remote:   https://gitlab.com/perlmonks/betelgeuse/-/merge_requests/new
+?merge_request%5Bsource_branch%5D=master
remote: 
To gitlab.com:perlmonks/betelgeuse.git
   092deaf..5000f52  master -> master
capx: [master 5000f52] next revision
 11 files changed, 963 insertions(+)
 create mode 100644 1.aldeb.txt
 create mode 100755 1.wrap.pl
 create mode 100755 2.2023.pl
 create mode 100755 2.create.bash
 create mode 100755 2.wrap.pl
 create mode 100755 3.2023.pl
 create mode 100755 3.millcreek.pl
 create mode 100644 3.output.txt
 create mode 100644 3.wrap.pl
 create mode 100755 4.2023.pl
 create mode 100755 4.wrap.pl
Branch 'master' set up to track remote branch 'master' from 'origin'.
 
fritz@laptop:~/Documents/gitlab1$
[download]

Source:

#!/usr/bin/perl 

use v5.030;    # strictness implied
use warnings;
use Path::Tiny;
use Time::Piece;
use Log::Log4perl;
use IPC::System::Simple qw/systemx capturex/;
use utf8;



my ($argv1) = @ARGV;
if (not defined $argv1) {
  die "Need argv1\n";
}

my $t         = localtime;
my $jd        = $t->julian_day;
my $log_conf4 = '/home/fritz/Documents/perlmonks/conf_files/4.conf';
Log::Log4perl::init($log_conf4);    #info
my $logger = Log::Log4perl->get_logger();
$logger->info("Time is $t");
$logger->info("Julian day is $jd");
$logger->info("$0");



my ($path) = @ARGV;
if (not defined $path) {
  die "Need path in\n";
}

my $file_in = path("$path");
my @lines = $file_in->lines_utf8;

my @commands;
# 
for my $line (@lines){
 
    if ( $line =~ /^(?:#|$)/){
    say "line  matched $line";
      next;
    }
        else {
      push( @commands, $line );
    }
}


say @commands;
say "cardinality: ", scalar @commands;

#my $capture = capturex "bash", @commands;
#$logger->info("capx: $capture");
my $target_dir = path('/tmp');
my $tempfile = $target_dir->tempfile('foobarXXXXXX');
$tempfile->spew("@commands");  # not atomic
my $capture = capturex "bash", $tempfile;
$logger->info("capx: $capture");
__END__
[download]

What doesn't work? I created a merge request, but it won't merge.

Looking at the log, I'm amazed at what came through capturex:

2023/03/07 22:43:27 INFO Time is Tue Mar  7 22:43:27 2023 
2023/03/07 22:43:27 INFO Julian day is 2460011.73850694 
2023/03/07 22:43:27 INFO ./1.wrap.pl 
2023/03/07 22:43:30 INFO capx: [master 5000f52] next revision
 11 files changed, 963 insertions(+)
 create mode 100644 1.aldeb.txt
 create mode 100755 1.wrap.pl
 create mode 100755 2.2023.pl
 create mode 100755 2.create.bash
 create mode 100755 2.wrap.pl
 create mode 100755 3.2023.pl
 create mode 100755 3.millcreek.pl
 create mode 100644 3.output.txt
 create mode 100644 3.wrap.pl
 create mode 100755 4.2023.pl
 create mode 100755 4.wrap.pl
Branch 'master' set up to track remote branch 'master' from 'origin'.
[download]

I'm still working through Git::Wrapper to abrogate this unusual approach, thx bliako++ for the tempfile idea.

Cheers from a land of snow,

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