crypt-in-repo

Keep secret files in github repository could be safe as long as it is encrypted. crypt-in-repo is a helper for developer who need to save secret files with their code in a safe way.

The idea comes from Fastlane Match who put certificates and profiles on github to share between teams.

Install

$ npm i crypt-in-repo --save-dev

Usage

Create config file crypt-in-repo.json in project root folder.

Here is an example:

{
    "files": [
        "README.md",
        "key.cert",
        "cert/password.json"
    ],
    "ext": ".crypt"
}

Add script in package.json

{
    "scripts": {
        "encrypt": "crypt-in-repo encrypt",
        "decrypt": "crypt-in-repo decrypt"
    }
}

Run the script:

# encrypt
CIR_PASS=mypassword npm run encrypt

# decrypt
CIR_PASS=mypassword npm run decrypt

Example using command line

Encrypt files:

npm run encrypt -- --pass mypassword --file secret.cert ios.p12

npm run encrypt -- --config ./crypt-in-repo.json

Decrypt files:

npm run decrypt -- --pass mypassword --file secret.cert ios.p12

npm run decrypt -- --config ./crypt-in-repo.json

Example using environment variables

Encrypt files:

CIR_CONFIG=./crypt-in-repo.json npm run encrypt

CIR_PASS=mypassword npm run encrypt -- --file secret.cert ios.p12

Decrypt files:

CIR_CONFIG=./crypt-in-repo.json npm run decrypt

CIR_PASS=mypassword npm run decrypt -- --file secret.cert ios.p12

Documents

Options can set in config file, command line or environment variables:

Config file	Command line options	Env variable	Explain
pass	--pass, -p	CIR_PASS=passphase	Passphrase for enrypt/decrypt file.
files	--file file1 [file2...]1	CIR_FILES=file1[;file2...]2	Array of origin files.
ext	--ext	CIR_EXT=.crypt	Extension of encrypted files. Default value: .aes256
limit	--limit	CIR_SIZELIMIT=1048576	Limit size of origin file. Default value: 1048576 (1MB)

Notes:

1. Assign file list in command line follow the yargs array(key) standards:

   • --file file1 --file file2 will be parsed as ['file1','file2']
   • --file file1 file2 will also be parsed as ['file1','file2]

2. Assign file list in env variable, the filename should seperated by ;.

crypt-in-repo can assign config file other than default crypt-in-repo.json. With command line options --config config_file

crypt-in-repo --config config_file to get config file. System environment variable CIR_CONFIG has the same functionality.

Change Logs

0.3.0 -

• More Test Coverage.
• Skip encrypting when nothing changes on original file.

License

Copyright (c) 2021, Shizheng Ding (MIT License)