Flynn CLI instalation will fail on Linux and/or in fish (shell)

[Darkless012]

Example installation script will fail on Linux if the targeted directory is not writable to user.
(/usr/local/bin/ is owned by root and has drwxr-xr-x permissions)

see: https://flynn.io/docs/cli#installation

$ L=/usr/local/bin/flynn && curl -sSL -A "`uname -sp`" https://dl.flynn.io/cli | zcat >$L && chmod +x $L
bash: /usr/local/bin/flynn: Permission denied
curl: (23) Failed writing body (0 != 16384)

Second issue is with running this script in fish (or any other shell), since this command is using bash syntax.

Therefore I would like to suggest improved version of this "cli instalation command" in following form:

sudo bash -c 'L=/usr/local/bin/flynn && curl -sSL -A "`uname -sp`" https://dl.flynn.io/cli | zcat >$L && chmod +x $L'

This will start new bash as a superuser - which will solve both problems (access rights + bash syntax)

However I'm not sure how this command will work on MAC machine.

Also I wanted to make pull-request for the corresponding DOCs, but I couldn't find it in repo.
https://flynn.io/docs/cli#installation

[ndyakov]

Hey, just tested this in macOS High Sierra with fish version 2.3.1. Works fine.

[titanous]

It also works fine on ZSH. Can you describe the shell issue you ran into?

[ndyakov]

@titanous He probably meant that only L=/usr/local/bin/flynn && curl -sSL -A "`uname -sp`" https://dl.flynn.io/cli | zcat >$L && chmod +x $L won't work in fish or zsh

[titanous]

It definitely works fine with zsh.

[ndyakov]

@titanous It does not in fish:

Unsupported use of '&&'. In fish, please use 'COMMAND; and COMMAND'.
fish: L=/usr/local/bin/flynn && curl -sSL -A "`uname -sp`" https://dl.flynn.io/cli | zcat >$L && chmod +x $L

[Darkless012]

@ndyakov @titanous Thanks for the tests :), I've updated the title.

Can you run the cli installation command without root elevation on Mac? If so, who is the owner and what are the rights on /usr/local/bin/ folder on Mac?

[ndyakov]

@Darkless012 works without sudo, the logged in user is the owner (i guess if it's in the admin group) admin is the group of /usr/local/bin

[titanous]

Flynn is unmaintained and our infrastructure will shut down on June 1, 2021. See the README for details.