pipe | A C algorithm library for generators

Got this command: cd /some/dir; /usr/local/bin/git log --diff-filter=A --follow --format=%aI -- /some/dir/file | tail -1

I want to get the output from it.

Tried this:

my $proc2 = run 'cd', $dirname, ';', '/usr/local/bin/git', 'log', '--diff-filter=A', '--follow', '--format=%aI', '--', $output_file, '|', 'tail', '-1', :out, :err;

Nothing output.

Tried this:

my $proc2 = run , $dirname, , $output_file, <| tail -1>, :out, :err;

Git throws an error:

fatal: --follow requires exactly one pathspec

The same git command runs fine when run directly from the command line.

I've confirmed both $dirname and $output_file are correct.

git log --help didn't shed any light on this for me. Command runs fine straight from command line.

UPDATE: So if I take off the | tail -1 bit, I get output from the command in raku (a date). I also discovered if I take the pipe out when running on the command line, the output gets piped into more. I'm not knowledgeable enough about bash and how it might interact with raku's run command to know for sure what's going on.

I was installing elasticsearch following this guide, but elasticsearch is not really the part of this question.

In the first step, I need to add the key:

Apparently throwError(error) is now deprecated. The IntelliSense of VS Code suggests throwError(() => new Error('error'). new Error(...) accepts only strings. What's the correct way to replace it without breaking my HttpErrorHandlerService ?

I like the idea of the lazy ranges you can make with std::views::iota but was surprised to see that iota is currently the only thing like it in the standard; it is the only "range factory" besides views::single and views::empty. There is not currently, for example, the equivalent of std::generate as a range factory.

I note however it is trivial to implement the semantics of generate by using a transform view on iota and just ignoring the value iota passes to transform i.e.

Recently I have found the %$% pipe operator, but I am missing the point regarding its difference with %>% and if it could completely replace it.

• The operator %$% could replace %>% in many cases:

I just upgraded an environment with nrwl from angular version 11 to 12 with two angular applications and several libraries. After update when I try to compile using optimization settings:

angular.json

Is it possible to relocate rows in tidyverse framework like it is possible for columns with dplyr relocate?

In this example I would like to relocate row 1 to position 5 (end of dataframe)

My dataframe:

We've had a working Ansible AWX instance running on v5.0.0 for over a year, and suddenly all jobs stop working -- no output is rendered. They will start "running" but hang indefinitely without printing out any logging.

The AWX instance is running in a docker compose container setup as defined here: https://github.com/ansible/awx/blob/5.0.0/INSTALL.md#docker-compose

Standard troubleshooting such as restarting of containers, host OS, etc. hasn't helped. No configuration changes in either environment.

Upon debugging an actual playbook command, we observe that the command to run a playbook from the UI is like the below:

ssh-agent sh -c ssh-add /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data && rm -f /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data && ansible-playbook -vvvvv -u ubuntu --become --ask-vault-pass -i /tmp/awx_11021_0fmwm5uz/tmppo7rcdqn -e @/tmp/awx_11021_0fmwm5uz/env/extravars playbook.yml

That's broken down into three commands in sequence:

1. ssh-agent sh -c ssh-add /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data
2. rm -f /tmp/awx_11021_0fmwm5uz/artifacts/11021/ssh_key_data
3. ansible-playbook -vvvvv -u ubuntu --become --ask-vault-pass -i /tmp/awx_11021_0fmwm5uz/tmppo7rcdqn -e @/tmp/awx_11021_0fmwm5uz/env/extravars playbook.yml

You can see in part 3, the -vvvvv is the debugging argument -- however, the hang is happening on command #1. Which has nothing to do with ansible or AWX specifically, but it's not going to get us much debugging info.

I tried doing an strace to see what is going on, but for reasons given below, it is pretty difficult to follow what it is actually hanging on. I can provide this output if it might help.

So one natural question with command #1 -- what is 'ssh_key_data'?

Well it's what we set up to be the Machine credential in AWX (an SSH key) -- it hasn't changed in a while and it works just fine when used in a direct SSH command. It's also apparently being set up by AWX as a file pipe:

prw------- 1 root root 0 Dec 10 08:29 ssh_key_data

Which starts to explain why it could be potentially hanging (if nothing is being read in from the other side of the pipe).

Running a normal ansible-playbook from command line (and supplying the SSH key in a more normal way) works just fine, so we can still deploy, but only via CLI right now -- it's just AWX that is broken.

So the question then becomes "why now"? And "how to debug"? I have checked the health of awx_postgres, and verified that indeed the Machine credential is present in an expected format (in the main_credential table). I have also verified that can use ssh-agent on the awx_task container without the use of that pipe keyfile. So it really seems to be this piped file that is the problem -- but I haven't been able to glean from any logs where the other side of the pipe (sender) is supposed to be or why they aren't sending the data.

I have an API call that may return some data or may return something falsey if no data exists. If there is data, I want to tap out of the stream and do some side effects, but if falsey, I want no side effects to happen but still display my template code.

I am using an async pipe to get that data in the template, but if the data is falsey, it will not display.

I have seen the technique to wrap the ngIf with an object so it evaluates to truthy, but it doesn't seem the correct solution for my code.

My template: