direnvp helps you to easily switch different profiles of .envrc
Create different profiles of the same environment variables and easily switch between them, these profiles are typically segregated based on your application environment/stages. Ex: dev,stg,prod
You create three different .envrc files ie .envrc.dev, .envrc.stg and .envrc.prod for dev, stg and prod profiles respectively. Switching between the profiles happens via deleting the existing .envrc file and creating a symlink to the required profile.
npm install -g direnvp
# Create a new folder for demo purposes.
$ mkdir ~/my-project
$ cd ~/my-project
# Show that the FOO environment variable is not loaded.
$ echo ${FOO-nope}
nope
# Create three different .envrc files that different values for the same FOO variable
$ echo export FOO=development > .envrc.dev
$ echo export FOO=staging > .envrc.stg
$ echo export FOO=production > .envrc.prod
# By default when you run direnvp it lists all the profiles available
$ direnvp
dev
prod
stg
# Switch to dev profile
$ direnvp dev
switched to dev profile
direnv: error ~/my-project/.envrc is blocked. Run `direnv allow` to approve its content
$ direnv allow
direnv: loading ~/my-project/.envrc
direnv: export +FOO
# Now FOO is set to development
$ echo ${FOO-nope}
development
# Switch to stg profile
$ direnvp stg
switched to stg profile
direnv: error ~/my-project/.envrc is blocked. Run `direnv allow` to approve its content
$ direnv allow
direnv: loading ~/my-project/.envrc
direnv: export +FOO
# Now FOO is set to staging
$ echo ${FOO-nope}
staging
# direnv allow is not required always as long as the files don't change
$ direnvp dev
switched to dev profile
direnv: loading ~/my-project/.envrc
direnv: export +FOO
# Now FOO is set back to development
$ echo ${FOO-nope}
development
# Showing the symlink
$ ls -al
total 24
drwxr-xr-x 6 dhanvi staff 192 Dec 16 16:30 .
drwxr-xr-x+ 38 dhanvi staff 1216 Dec 16 16:32 ..
lrwxr-xr-x 1 dhanvi staff 10 Dec 16 16:30 .envrc -> .envrc.dev
-rw-r--r-- 1 dhanvi staff 23 Dec 16 16:19 .envrc.dev
-rw-r--r-- 1 dhanvi staff 22 Dec 16 16:21 .envrc.prod
-rw-r--r-- 1 dhanvi staff 19 Dec 16 16:20 .envrc.stg
# Show help
$ direnvp -h
Usage:
direnvp : list the profiles
direnvp <NAME> : switch to profile <NAME>
direnvp -v, --version : output the version number
direnvp -h,--help : show this message
# Show version
$ direnvp -v
1.0.0
# direnvp creates a empty new profile/file for you if it doesn't exist
$ direnv dev2
dev2 profile not found, created a empty file .envrc.dev2
switched to dev2 profile
direnv: error ~/my-project/.envrc is blocked. Run `direnv allow` to approve its content