How to make export ENV in makefile?
But same task in Makefile doesn’t work: export.env: set -a . ./.env set +a make export.env # done printenv | grep A # nothing! I need these vars to persist after make task finished.
How to see environment variables in makefile file?
VARn=valn command arg …. This can be illustrated by some minor alterations to the above Makefile: file.txt contains a dump of environment variables, where we can see somevar. If export in GNU Make did the right thing, we would have been able to just do:
Where do I find env variable in make?
The effects of . ./.env will only be seen in the shell which runs that command. Modern make implementations include support for managing the environment. GNU make does, my smake does and my enhanced version of SunPro Make that is available in the schilytools tarball supports it.
How is an environment variable transformed into a make variable?
Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. However, an explicit assignment in the makefile, or with a command argument, overrides the environment. (If the ‘-e’ flag is specified, then values from the environment override assignments in the makefile.
Can a make file be included in a makefile?
GNU make does, my smake does and my enhanced version of SunPro Make that is available in the schilytools tarball supports it. If you carefully write your env file to have assignments and export statements on different lines, you can include the env file in your Makefile.
How to include env file in GNU make?
If you are using gnu make, what should work is to include the envfile file, then export the list of vars got from the same file: I had a similar problem and landed on this thread. Another possible solution is to just do the make export command without any arguments:
How to access environment variables in a makefile-simplernerd?
Unfortunately, Makefile doesn’t automatically have access to the root .env file, which might look something like this. That said, we can include the appropriate environment file in our Makefile. The environment variables are then accessible using the $ (VAR_NAME) syntax.