Feat/transient show interrupt

[kovjanos]

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Description

This is the 2nd feature on top of the Feat/zsh transient multiline #7360 PR

This feature adds a new status flag .Interrupted that can be used e.g. in transient_template:

I have a transient command that shows the command and the return code if it is non-zero:

[00:06:47]❯ return 1
✘ 1
[00:06:48]❯ return 1
✘ 1

The problem is that in quick typing I sometimes interrupt the command with Ctrl-C, which then sometimes can not be differentiated from the submitted but failed commands. To be able to differentiate them, I'm adding a new state which then can be used in the transient_template for this reason, e.g.:

[transient_prompt]
  template = "{{ if .Interrupted }}<red>^C </>{{ end }}"

With this, you can easily see which commands were interrupted:

[00:15:08]❯ return 1
✘ 1
[00:15:10]❯ ^C return 1
✘ 1

Note: the reason of the status flag and template usage showing ^C in front of the command instead of having ^C in the position where it was pressed is because sometimes in lazy mode - especially with long multi-line commands - I prefer to be able to copy part of the previously interrupted command, which would be hard if the ^C would be in the middle of the command messing it up