CODEWITHSUNDEEP
pythonmakefile
Guilherme Lima
Guilherme Lima

Reputation: 783

Set result from python script into a variable in makefile

python ./folder/script.py ; result=$$?; echo "$$result"

the echo result is 0 or 1

How can i set the value of $$result in a variable to use in the following if/else:

My Make file Command:

deploy/run:

$(shell python ./folder/script.py)

ifeq ($(.SHELLSTATUS),0)
    export TF_VAR_DB_NAME='some_db'
else
    export TF_VAR_DB_NAME='other_db'
endif

My script.py basics is:

class TaskChecker(object):
    @staticmethod
    def run():
        matches = True
        if matches:
            sys.exit(1)
        else:
            sys.exit(0)

if __name__ == "__main__":
    TaskChecker.run()

GNU Make 3.81

Upvotes: 0

Views: 548

Answers (1)

Tim Roberts
Tim Roberts

Reputation: 54698

If you change your Python code to print to stdout, you can suck up the text directly:

result := $(shell python ./folder/script.py)

If you really need just the exit code, this should work:

$(shell python ./folder/script.py)
ifeq ($(.SHELLSTATUS),1)
    echo "YEY"
else
    echo "OHNO"
endif

GNU Make 3.81

Update

Here's an example showing that this works:

C:\tmp>cat Makefile
$(shell python -c "import sys\; sys.exit(1)")

ifeq ($(.SHELLSTATUS), 0)
    export LEFT = 123
else
    export LEFT = 456
endif

all:
    python -c "import os; print(os.environ['LEFT'])"

C:\tmp>make
python -c "import os; print(os.environ['LEFT'])"
456

C:\tmp>

Upvotes: 1

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