CODEWITHSUNDEEP
makefile
JBT
JBT

Reputation: 8756

how ignore part of the target string

Suppose I have some targets in a Makefile as below:

A-foobar-int:
    mvn test -Dtest.env=(@:X-foobar-%=%)

B-foobar-qa:
    mvn test -Dtest.env=(@:X-foobar-%=%)

C-foobar-int:
    mvn test -Dtest.env=(@:X-foobar-%=%)

Currently, the X as in X-foobar-% is something I am trying to figure out. Basically, what I want to achieve is have a general pattern in all the target actions, instead of A-foobar-%, B-foobar-%, or C-foobar-%. So, what should I do?

Upvotes: 0

Views: 193

Answers (2)

Louis
Louis

Reputation: 151511

If I understood your question correctly, this does what you want:

%-foobar-int:
    @echo mvn test -Dtest.env=$(@:$*-foobar-%=%)

%-foobar-qa:
    @echo mvn test -Dtest.env=$(@:$*-foobar-%=%)

There's only 2 rules because A-foobar-int and C-foobar-int are both handled by the first rule. The rules use $* to get the value of the stem matched by the target patterns. (And I'm using echo to check the results because I not set to run the command.)

Upvotes: 1

Alex Cohn
Alex Cohn

Reputation: 57203

So, you want to drop the first two tokens of $@ (when - is used as a tokenizer).

Here we go:

drop-two-tokens-helper = $(subst $(word 1,$3)$2$(word 2,$3)$2,,$1)

drop-two-tokens = $(call drop-two-tokens-helper,$2$2$2$1,$2,$2$2$2$(subst $2, ,$1))

A-foobar-int:
    mvn test -Dtest.env=$(call drop-two-tokens,$@,-)

Upvotes: 0

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