Add den status command

[bap14]

Adds a new status command showing the current projects that are running and Den's Traefik instance is connected to.

[navarr]

I love the idea, but I'm unsure how good or bad of a decision it is to add python3 as a requirement to Den.

[LeeSaferite]

Given that den is using docker, why not simply use docker to run the python command? Or rewrite it to use jq and still use docker to run the command.

[bap14]

@LeeSaferite The idea was to use tools already available on the Mac without adding external dependencies, as well as not having to download another docker container to parse JSON.

I'll give some alternatives a try (jq docker, python docker, manually parsing via bash).

@navarr Python should already be available on MacOS. I have Xcode tools installed so Python3 is also available (though the syntax only changes a little bit between 2 and 3). But as Lee pointed out, I'll research alternatives.

[navarr]

@navarr Python should already be available on MacOS. I have Xcode tools installed so Python3 is also available (though the syntax only changes a little bit between 2 and 3). But as Lee pointed out, I'll research alternatives.

It is, and while Mac is the primary target at SO, Den supports Linux and Windows as well.

[bap14]

I'll have a fix for this later this evening. I think i just need to step up my Golang template fu and I can completely remove the Python scripts.

[bap14]

@navarr Removed python as dependency, also changed the output to add more information about the project (Traefik domain).

[bap14]

Here's a screenshot of the new output.

[navarr]

This doesn't appear to be working for me.

First off, versions. I'm running off your latest commit to this branch.

navarr@Navarrs-MBP-2 den % docker version;docker compose version
Client:
 Cloud integration: v1.0.29
 Version:           20.10.17
 API version:       1.41
 Go version:        go1.17.11
 Git commit:        100c701
 Built:             Mon Jun  6 23:04:45 2022
 OS/Arch:           darwin/arm64
 Context:           default
 Experimental:      true

Server: Docker Desktop 4.12.0 (85629)
 Engine:
  Version:          20.10.17
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.17.11
  Git commit:       a89b842
  Built:            Mon Jun  6 23:01:01 2022
  OS/Arch:          linux/arm64
  Experimental:     false
 containerd:
  Version:          1.6.8
  GitCommit:        9cd3357b7fd7218e4aec3eae239db1f68a5a6ec6
 runc:
  Version:          1.1.4
  GitCommit:        v1.1.4-0-g5fd4c4d
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
Docker Compose version v2.10.2

navarr@Navarrs-MBP-2 den % den status
Template parsing error: template: :1:46: executing "" at <slice $v.Name 0 12>: error calling slice: index out of range: 12
ERROR: Command `projectContainers=$(docker network inspect --format '{{ range $k,$v := .Containers }}{{ $prefix := slice $v.Name 0 '"${prefixLen}"' }}{{ if eq $prefix "'"${prefix}-"'" }}{{ println $v.Name }}{{end}}{{end}}' "${projectNetwork}")` at /Users/navarr/IdeaProjects/den/commands/status.cmd:22 failed with exit code 1
navarr@Navarrs-MBP-2 den % echo $projectNetworkList
gsg-current_default
gsg24_default
gsg_default
mwi_default
perforce_default
warden
znd-magento2_default
navarr@Navarrs-MBP-2 den % echo $prefix

navarr@Navarrs-MBP-2 den % echo $prefixLen
1
navarr@Navarrs-MBP-2 den % docker network inspect --format '{{ range $k,$v := .Containers }}{{ $prefix := slice $v.Name 0 '"${prefixLen}"' }}{{ if eq $prefix "'"${prefix}-"'" }}{{ println $v.Name }}{{end}}{{end}}' "${projectNetwork}"

Error: No such network:

Is what I try to get running it outside of den

Any additional things I can do to get more information for you?

[bap14]

@navarr Submitted a fix. I use simple 3-letter environment names, so my "prefix" is always shorter than the den core container names (traefik, mailhog, etc.).

The issue was in longer names (e.g. znd-magento2) that prefix was longer than those core container names, causing the out of bounds error. I added a quick length check so only container names that are longer than the prefix are checked (which should be all the environment-specific containers).

There is still room for improvement (e.g. what if I specify the container name in a custom warden-env.yml file), but that adds to the complexity of this, and BASH is a limiting language (in some ways).

[ihor-sviziev]

Great idea, but 2 things I would improve:

1. it's not showing not "running" enviroments
2. there no mentions of this new command in https://github.com/swiftotter/den/blob/main/commands/usage.help#L23-L33

[navarr]

@ihor-sviziev Thanks for the comment!

I've gone ahead and resolved improvement 2. I do think improvement 1 might be fairly difficult. One reason I like this command is because I'll commonly want to know which environments I have running so I can shut them down, so it remains useful to me with or without improvement 1.

[bap14]

@ihor-sviziev Yeah, I was thinking about that. Initially I was going to say during the den env up and den env init a file would be created in the home directory keeping a tab of available environments and those that are running; however, that didn't feel clean to me (though may be the only way to do it).

[navarr]

@bap14 Honestly I'm not a fan of that either. Far too many ways that it can get out-of-sync.