Feature Request: source command as flag for delve (before entering dlv prompt)

[johnsaigle]

I really love automating things and I'd like to be able to directly invoke a Delve script without manually entering the delve prompt first.

e.g. instead of

$ dlv attach $pid # in bash
...
(dlv) source dlv-script.txt # in dlv

I'd like to do:

dlv attach $pid --source dlv-script.txt

Context

My use case would be to automatically generate an external list of functions for a new project. Currently that looks like this:

gen-funcs.sh

# do some set up, get pid... 
dlv attach $pid

gen-funcs.dlv

transcript -x funcs.out
funcs

Now in Delve prompt:

(dlv) source gen-funcs.dlv
(dlv) exit

I'd like to avoid the need to manually enter a Delve prompt, type my command, and immediately exit when I'm finished.

Related: #2324

[aarzilli]

The --init flag does this. This reduces to #2324. Reopen if I'm wrong.

[johnsaigle]

Confirmed, thank you. dlv attach $pid --init dlv-script.txt does what I want it to.

I'd recommend adding a bit more documentation to the --init flag (and possibly renaming/aliasing it to --source) for clarity. Before opening the issue I looked at the CLI help and the repository documentation and it wasn't clear to me that init performs this function.

Thanks again!