I've made some progress and have published a gist with my current approach to multi-hop Docker container completion in TRAMP. I'd appreciate comments and suggestions, and whether this is a reasonable direction to take or if I'm missing something important.
https://gist.github.com/genegoykhman/09868acd369b3fae866be6446997de9f I've taken an approach similar to the one Kristofer describes ... > A very simple change I tried when previously trying to get multihop > completion working > with another backend was that if I changed the variable > `tramp-compat-temporary-file-directory' > for the function `temporary-file-directory' in the completion > functions (like `tramp-container--completion-function'), then at least I'm advising :before tramp-completion-handle-file-name-all-completions and parsing out the required remote directory from which we need to call the docker program to get remote completions. Then, I'm adding a custom completion function my-tramp-container-completion-function that takes that directory (if it has been parsed) and sets it as the default-directory. > Another issue that I found, which maybe is unavoidable, is that some > of the completion functions in `tramp-container' requires that the > container > program is installed on the local host, but sometimes I only have I /think/ the approach I've taken only requires that the container program be available on the remote host on which we are trying to get the completion list. Feedback appreciated!
