CODEWITHSUNDEEP
makefile
Billy Bob
Billy Bob

Reputation: 87

alternative to this rule calling rule on makefile

I have this makefile, it actually does the job, but I feel it's not pretty. My goal is simple, when someone call "make" for the first time, it will run both compile and staging, but consecutive call to make, it will call compile only. If user wants to run staging, user must call "make staging". Anyone has better idea?

all: compile

.PHONY: compile staging                                                         

compile:
    @echo "compile"
    @test -f ./.staging || make ./.staging

force_staging:
    @rm -f ./.staging

staging: force_staging compile
    @:

./.staging:
    @echo "staging"
    @touch $@

Upvotes: 0

Views: 100

Answers (2)

John
John

Reputation: 3520

This sounds like a job for order only dependencies:

all: compile

compile: | .staging
    echo $@
    touch $@

.staging: 
    echo $@
    touch $@

staging: .staging compile

Notice that if the user does make staging, then .staging will be a regular target and will rebuild if out of date. If the user does make all, then .staging will only be rebuilt if it does not exist.

Upvotes: 1

igagis
igagis

Reputation: 2079

Instead of testing for file existence I think you can add a dependency on .staging

all: compile

.PHONY: compile

compile: ./.staging
    @echo "compile"

force_staging:
    @rm -f ./.staging

staging: force_staging compile
    @:

./.staging:
    @echo "staging"
    @touch $@

Upvotes: 0

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