Greetings, dear PerlMonks,

I have released a module to CPAN, but now I am having trouble installing the latest version. The module is called: Graph::Undirected::Hamiltonicity

A demo is hosted at https://ownlifeful.com/, and the source code is hosted on GitHub.

To install the module from the source, you would follow these steps:

  1. Get the source: git clone https://github.com/ownlifeful/Graph-Undirected-Hamiltonicity.git
  2. cd Graph-Undirected-Hamiltonicity
  3. perl ./Build.PL
  4. ./Build

I see an error message as below: 

...
Configuring Graph-Undirected-Hamiltonicity-0.013 ... OK
Building and testing Graph-Undirected-Hamiltonicity-0.013 ... FAIL
! Installing . failed. See /home/ashwin/.cpanm/work/1640803042.747791/
+build.log for details. Retry with --force to force install it.
[DZ] error running {{["cpanm", "."]}}
[DZ] install failed, left failed dist in place at .build/ZWeABKzuKx
[DZ] error running {{["cpanm", "."]}} at inline delegation in Dist::Zi
+lla for logger->log_fatal (attribute declared in /home/ashwin/perl5/p
+erlbrew/perls/perl-5.34.0/lib/site_perl/5.34.0/Dist/Zilla.pm at line 
+782) line 18.

[download]

You can peek at the Build file. It shows: 


#!/bin/sh
/home/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/dzil authordeps | /h
+ome/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/cpanm
/home/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/dzil listdeps | /hom
+e/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/cpanm
/home/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/dzil install

[download]

The error occurs on the last line of the Build file. i.e., /home/ashwin/perl5/perlbrew/perls/perl-5.34.0/bin/dzil install and it looks like this: 

Configuring Graph-Undirected-Hamiltonicity-0.013 ... OK
Building and testing Graph-Undirected-Hamiltonicity-0.013 ... FAIL
! Installing . failed. See /home/ashwin/.cpanm/work/1640803042.747791/
+build.log for details. Retry with --force to force install it.
[DZ] error running {{["cpanm", "."]}}
[DZ] install failed, left failed dist in place at .build/ZWeABKzuKx
[DZ] error running {{["cpanm", "."]}} at inline delegation in Dist::Zi
+lla for logger->log_fatal (attribute declared in /home/ashwin/perl5/p
+erlbrew/perls/perl-5.34.0/lib/site_perl/5.34.0/Dist/Zilla.pm at line 
+782) line 18.

[download]

I have looked at the build.log file as indicated above, and found nothing useful. So I tried running this command: strace cpanm . to track down where in the code the error occurs.

Here is an excerpt from strace: 

...
write(1, "OK\nBuilding and testing . ... ", 30) = 30
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|
+SIGCHLD, child_tidptr=0x7f4de58514d0) = 720013
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [ALRM], [], 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x562e53110bf0, sa_mask=[], sa_flags
+=SA_RESTORER, sa_restorer=0x7f4de5bb0140}, {sa_handler=SIG_DFL, sa_ma
+sk=[], sa_flags=SA_RESTORER, sa_restorer=0x7f4de5bb0140}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
alarm(3600)                             = 0
wait4(720013, [{WIFEXITED(s) && WEXITSTATUS(s) == 1}], 0, NULL) = 7200
+13
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=720013, si_u
+id=1000, si_status=1, si_utime=0, si_stime=0} ---
alarm(0)                                = 3564
rt_sigprocmask(SIG_BLOCK, [ALRM], [], 8) = 0
rt_sigaction(SIGALRM, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RES
+TORER, sa_restorer=0x7f4de5bb0140}, {sa_handler=0x562e53110bf0, sa_ma
+sk=[], sa_flags=SA_RESTORER, sa_restorer=0x7f4de5bb0140}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, 0x7ffd19c2e700)        = -1 ENOTTY (Inappropriate ioc
+tl for device)
fstat(1, {st_mode=S_IFREG|0644, st_size=127, ...}) = 0
write(2, "! Installing . failed. See /home"..., 133! Installing . fail
+ed. See /home/ashwin/.cpanm/work/1640779718.720003/build.log for deta
+ils. Retry with --force to force install it.
...

[download]

In the first line of the above excerpt, the error has yet to happen. In the last line of the same excerpt, the error has already happened.

I would appreciate a fresh set of eyes looking at this code. I can barely read the strace output. Can someone tell me what's going wrong?

I have used Dist::Zilla and perlbrew to develop and test this module.

Where's the bug? Is Dist::Zilla worth it? Should I switch to the MakeMaker approach?

Thanks a bunch, folks!

In reply to Releasing a CPAN module using Dist::Zilla & perlbrew by ownlifeful

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