`az interactive`: add flag to clear the cache

[mdavis-xyz]

Describe the bug

az group delete --name mygroup

works as a command, but not inside az interactive.

az group delete --help

returns

Arguments
    --name --resource-group -g -n [Required] : Name of resource group. You can configure the default

This clearly means that either --name or --resource-group is an acceptable flag for the name of the resource group you want to delete.

And az group delete --name mygroup does work.

If you run az interactive and type group delete -- the suggestions are

az>> group delete --name draw-demo
 --name            [Required] Name of resource group. You can configure the default group using `az configure --defaults group=<na...
 --resource-group  [Required] Name of resource group. You can configure the default group using `az configure --defaults group=<na...

This also makes it clear that either --name or --resource-group can be used.

However if you try to run the same command as before, but now in interactive mode, it fails.

$ az interactive
az>> group delete --name mygroup
az group delete: error: the following arguments are required: --resource-group/-g
usage: az group delete [-h] [--verbose] [--debug]
                       [--output {json,jsonc,table,tsv,yaml}]
                       [--query JMESPATH] --resource-group RESOURCE_GROUP_NAME
                       [--yes] [--no-wait] [--subscription _SUBSCRIPTION]

To Reproduce

$ az interactive
az>> group delete --name mygroup

Expected behavior

Group is successfully deleted

Actual Behavior

az group delete: error: the following arguments are required: --resource-group/-g
usage: az group delete [-h] [--verbose] [--debug]
                       [--output {json,jsonc,table,tsv,yaml}]
                       [--query JMESPATH] --resource-group RESOURCE_GROUP_NAME
                       [--yes] [--no-wait] [--subscription _SUBSCRIPTION]

Environment summary

• Ubuntu 18
• installed based on the official instructions
• az --version:

azure-cli (2.0.54)
...

Extensions:
interactive (0.4.1)
...
Python (Linux) 3.6.5

[tjprescott]

I am not able to repro this issue. If you run az group delete -h outside of interactive, does it not show:

Command
    az group delete : Delete a resource group.

Arguments
    --name --resource-group -g -n [Required] : Name of resource group. You can configure the default
                                               group using `az configure --defaults group=<name>`.

[mdavis-xyz]

I just ran apt-get update && apt-get -y upgrade. Now my client has upgraded from 2.0.54 to 2.0.55. The problem still exists.

In fact, when trying to reproduce this problem with the newer version, I noticed that the problem extends to group create too.

[tjprescott]

Hi @mlda065 thanks for updating. Please try a few things:

1. Run az --version from both the raw command line and from within az interactive. Confirm that they are the same.
2. On your command line run which az and then in az interactive run #which az. Confirm that they are the same.
3. Exit az interactive and delete your .azure-shell folder (shuld be in your home directory). Then re-launch interactive. You may have an outdated cache.

[mdavis-xyz]

1. Same for both
2. same for both
3. Yes that fixed it

[tjprescott]

Thanks @mlda065. I'm going to transfer this issue to extensions repo and suggest that we add a flag to clear the cache.

[tjprescott]

Based on this thread, I suggest it would be worthwhile to add a flag to az interactive that would wipe the .azure-shell directory on behalf of the user. This would offer a simpler troubleshooting option for users that run into problems of an outdated cache, which is relatively common issue.