node.js - How can I login to yarn non-interactively? -


when using npm, can login non-interactively with:

$ printf "jesstelford\n<password>\nexample@email.com\n" | npm login

however, similar command yarn hangs:

$ printf "jesstelford\nexample@email.com\n" | yarn login yarn login v0.21.3 question npm username: jesstelford question npm email:

in interactive mode, can run:

$ yarn login yarn login v0.21.3 question npm username: jesstelford question npm email: example@email.com ✨  done in 22.53s.

how can run yarn login non-interactively?

yarn appears pause after username entered. need pause when in non-interactive mode:

$ { echo "jesstelford"; sleep 1; echo "example@email.com"; } | yarn login

this give following output:

yarn login v0.21.3 question npm username: jesstelford question npm email: example@email.com ✨  done in 0.84s.

how works

echo "jesstelford" enters string, followed newline character

sleep 1 insert 1 second pause after entering username, before continuing on enter email:

echo "example@email.com" enters second string, followed newline character end command.


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