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Makefile

Makefile is a tool which controls the generation of executables and other non-source files of a program from the program's source files.

To run the Makefile, you need to run make <target>. For example, to run the build target, you need to run make build.

Syntax:

target: dependencies
    commands

Example:

build:
    go build -o bin/main main.go

Targets​

Targets are the commands that you want to run. They are the name of the commands that you want to run. For example, build is a target in the above example.

Variables​

Variables are used to store data. To define a variable, you need to use the = operator. To use a variable, you need to use the ${variable} syntax.

Example:

NAME = "John Doe"

build:
    go build -o bin/main main.go
    echo ${NAME}

chaining of targets.​

When a targets depends on other targets, you can chain them.

IMAGE=Pradumnasaraf/hello-world
TAG=latest

build:
    docker build -t $(IMAGE):$(TAG) .

publish: build
    docker push $(IMAGE):$(TAG)