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justinmklam/makefile-cheatsheet.md

Last active July 9, 2021 21:24
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Cheat sheet for makefile
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makefile-cheatsheet.md

Assign output of command to a variable, then use the variable. Needs $<); \ to pipe the output and concatenate the subsequent line, since each line is executed in a separate shell.

# Usage: make db-upgrade-gcp environment=dev
db-upgrade-gcp:
	TOKEN=$$(gcloud auth print-identity-token $<); \
	python bin/db_upgrade_gcp.py $(environment) --gcp_token $$TOKEN
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