nix-format: support remote buffers #206
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Two changes need to be made to support Tramp remote buffers:
1. Pass the second REMOTE arg to `executable-find` to find the
executable on the remote host
2. Avoid using `call-process-region`, which doesn't have a Tramp
equivalent
This change replaces `call-process-region` with `process-file` which
supports executing via Tramp. This function requires writing the
buffer contents to a temporary file first.
Although writing the buffer to a file may have perfomance implications
vs. writing from memory to stdin, they are likely to be
negligibile. Furthermore, this approach is similar to other formatting
libraries like prettier.el:
https://github.com/jscheid/prettier.el/blob/master/prettier.el#L1494
I've also found it to be more reliable than `process-send-string`.
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Two changes need to be made to support Tramp remote buffers:
Pass the second REMOTE arg to
executable-findto find the executable on the remote hostAvoid using
call-process-region, which doesn't have a Tramp equivalentThis change replaces
call-process-regionwithprocess-filewhich supports executing via Tramp. This function requires writing the buffer contents to a temporary file first.Although writing the buffer to a file may have perfomance implications vs. writing from memory to stdin, they are likely to be negligibile. Furthermore, this approach is similar to other formatting libraries like prettier.el:
https://github.com/jscheid/prettier.el/blob/master/prettier.el#L1494
I've also found it to be more reliable than
process-send-string.