@semantic-release/git
semantic-release plugin to commit release assets to the project's git repository.
Step | Description |
---|---|
verifyConditions |
Verify the access to the remote Git repository, the commit message and the assets option configuration. |
prepare |
Create a release commit, including configurable file assets. |
Install
$ npm install @semantic-release/git -D
Usage
The plugin can be configured in the semantic-release configuration file:
{
"plugins": [
"@semantic-release/commit-analyzer",
"@semantic-release/release-notes-generator",
["@semantic-release/git", {
"assets": ["dist/**/*.{js,css}", "docs", "package.json"],
"message": "chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}"
}]
]
}
With this example, for each release a release commit will be pushed to the remote Git repository with:
- a message formatted like
chore(release): <version> [skip ci]\n\n<release notes>
- the
.js
and.css
files in thedist
directory, the files in thedocs
directory and thepackage.json
Merging between semantic-release branches
This plugin will, by default, create commit messages with the keyword [skip ci]
, so they won't trigger a new unnecessary CI build. If you are using semantic-release with multiple branches, when merging a branch with a head being a release commit, a CI job will be triggered on the target branch. Depending on the CI service that might create an unexpected behavior as the head of the target branch might be ignored by the build due to the [skip ci]
keyword.
To avoid any unexpected behavior we recommend to use the --no-ff
option when merging branches used by semantic-release.
Note: This concerns only merges done between two branches configured in the branches
option.
Configuration
Git authentication
The Git user associated with the Git credentials has to be able to push commit to the release branch.
When configuring branches permission on a Git hosting service (e.g. GitHub protected branches, GitLab protected branches or Bitbucket branch permissions) it might be necessary to create a specific configuration in order to allow the semantic-release user to bypass global restrictions. For example on GitHub you can uncheck "Include administrators" and configure semantic-release to use an administrator user, so the plugin can push the release commit without requiring status checks and pull request reviews.
Environment variables
Variable | Description | Default |
---|---|---|
GIT_AUTHOR_NAME |
The author name associated with the release commit. See Git environment variables. | @semantic-release-bot. |
GIT_AUTHOR_EMAIL |
The author email associated with the release commit. See Git environment variables. | @semantic-release-bot email address. |
GIT_COMMITTER_NAME |
The committer name associated with the release commit. See Git environment variables. | @semantic-release-bot. |
GIT_COMMITTER_EMAIL |
The committer email associated with the release commit. See Git environment variables. | @semantic-release-bot email address. |
Options
Options | Description | Default |
---|---|---|
message |
The message for the release commit. See message. | chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes} |
assets |
Files to include in the release commit. Set to false to disable adding files to the release commit. See assets. |
['CHANGELOG.md', 'package.json', 'package-lock.json', 'npm-shrinkwrap.json'] |
enablePush |
Enable or disable pushing to the remote repository | true |
message
The message for the release commit is generated with Lodash template. The following variables are available:
Parameter | Description |
---|---|
branch |
The branch from which the release is done. |
branch.name |
The branch name. |
branch.type |
The type of branch. |
branch.channel |
The distribution channel on which to publish releases from this branch. |
branch.range |
The range of semantic versions to support on this branch. |
branch.prerelease |
The pre-release detonation to append to semantic versions released from this branch. |
lastRelease |
Object with version , gitTag and gitHead of the last release. |
nextRelease |
Object with version , gitTag , gitHead and notes of the release being done. |
Note: It is recommended to include [skip ci]
in the commit message to not trigger a new build. Some CI service support the [skip ci]
keyword only in the subject of the message.
message
examples
The message
Release <%= nextRelease.version %> - <%= new Date().toLocaleDateString('en-US', {year: 'numeric', month: 'short', day: 'numeric', hour: 'numeric', minute: 'numeric' }) %> [skip ci]\n\n<%= nextRelease.notes %>
will generate the commit message:
Release v1.0.0 - Oct. 21, 2015 1:24 AM [skip ci]
## 1.0.0
### Features
* Generate 1.21 gigawatts of electricity
...
assets
Can be an Array
or a single entry. Each entry can be either:
Each entry in the assets
Array
is globbed individually. A glob can be a String
("dist/**/*.js"
or "dist/mylib.js"
) or an Array
of String
s that will be globbed together (["dist/**", "!**/*.css"]
).
If a directory is configured, all the files under this directory and its children will be included.
Note: If a file has a match in assets
it will be included even if it also has a match in .gitignore
.
assets
examples
'dist/*.js'
: include all js
files in the dist
directory, but not in its sub-directories.
'dist/**/*.js'
: include all js
files in the dist
directory and its sub-directories.
[['dist', '!**/*.css']]
: include all files in the dist
directory and its sub-directories excluding the css
files.
[['dist', '!**/*.css'], 'package.json']
: include package.json
and all files in the dist
directory and its sub-directories excluding the css
files.
[['dist/**/*.{js,css}', '!**/*.min.*']]
: include all js
and css
files in the dist
directory and its sub-directories excluding the minified version.
Examples
When used with the @semantic-release/changelog or @semantic-release/npm plugins:
- The @semantic-release/changelog plugin must be called first in order to update the changelog file so the
@semantic-release/git
and @semantic-release/npm plugins can include it in the release. - The @semantic-release/npm plugin must be called second in order to update the
package.json
file so the@semantic-release/git
plugin can include it in the release commit.
{
"plugins": [
"@semantic-release/commit-analyzer",
"@semantic-release/release-notes-generator",
"@semantic-release/changelog",
"@semantic-release/npm",
"@semantic-release/git"
],
}
GPG signature
Using GPG, you can sign and verify tags and commits. With GPG keys, the release tags and commits made by Semantic-release are verified and other people can trust that they were really were made by your account.
Generate the GPG keys
If you already have a GPG public and private key you can skip this step and go to the Get the GPG keys ID and the public key content step.
Download and install the GPG command line tools for your operating system.
Create a GPG key
$ gpg --full-generate-key
At the prompt select the RSA and RSA
king of key, enter 4096
for the keysize, specify how long the key should be valid, enter yout name, the email associated with your Git hosted account and finally set a long and hard to guess passphrase.
Get the GPG keys ID and the public key content
Use the gpg --list-secret-keys --keyid-format LONG
command to list your GPG keys. From the list, copy the GPG key ID you just created.
$ gpg --list-secret-keys --keyid-format LONG
/Users/<user_home>/.gnupg/pubring.gpg
---------------------------------------
sec rsa4096/XXXXXXXXXXXXXXXX 2017-12-01 [SC]
uid <your_name> <your_email>
ssb rsa4096/YYYYYYYYYYYYYYYY 2017-12-01 [E]
the GPG key ID is the 16 character string, on the sec
line, after rsa4096
. In this example, the GPG key ID is XXXXXXXXXXXXXXXX
.
Export the public key (replace XXXXXXXXXXXXXXXX with your key ID):
$ gpg --armor --export XXXXXXXXXXXXXXXX
Copy your GPG key, beginning with -----BEGIN PGP PUBLIC KEY BLOCK----- and ending with -----END PGP PUBLIC KEY BLOCK-----
Add the GPG key to your Git hosted account
Add the GPG key to GitHub
In GitHub Settings, click on SSH and GPG keys in the sidebar, then on the New GPG Key button.
Paste the entire GPG key export previously and click the Add GPG Key button.
See Adding a new GPG key to your GitHub account for more details.
Use the GPG key to sign commit and tags locally
If you want to use this GPG to also sign the commits and tags you create on your local machine you can follow the instruction at Git Tools - Signing Your Work This step is optional and unrelated to Semantic-release.
Add the GPG keys to your CI environment
Make the public and private GPG key available on the CI environment. Encrypt the keys, commit it to your repository and configure the CI environment to decrypt it.
Add the GPG keys to Travis CI
Install the Travis CLI:
$ gem install travis
Login to Travis with the CLI:
$ travis login
Add the following environment variables to Travis:
-
GPG_PASSPHRASE
to Travis with the value set during the GPG keys generation step -
GPG_KEY_ID
to Travis with the value of your GPG key ID retrieved during the GPG keys generation (replace XXXXXXXXXXXXXXXX with your key ID) -
GIT_EMAIL
with the email address you set during the GPG keys generation step -
GIT_USERNAME
with the name you set during the GPG keys generation step
$ travis env set GPG_PASSPHRASE <gpg_passphrase>
$ travis env set GPG_KEY_ID XXXXXXXXXXXXXXXX
$ travis env set GIT_EMAIL <your_email>
$ travis env set GIT_USERNAME <your_name>
From your repository root export your public and private GPG keys in the git_gpg_keys.asc
(replace XXXXXXXXXXXXXXXX with your key ID):
$ gpg --export -a XXXXXXXXXXXXXXXX > git_gpg_keys.asc
$ gpg --export-secret-key -a XXXXXXXXXXXXXXXX >> git_gpg_keys.asc
Encrypt the git_gpg_keys.asc
(public and private key) using a symmetric encryption (AES-256), and store the secret in a secure environment variable in the Travis environment:
$ travis encrypt-file git_gpg_keys.asc
The travis encrypt-file
will encrypt the keys into the git_gpg_keys.asc.enc
file and output in the console the command to add to your .travis.yml
file. It should look like openssl aes-256-cbc -K $encrypted_AAAAAAAAAAAA_key -iv $encrypted_BBBBBBBBBBBB_iv -in git_gpg_keys.asc.enc -out git_gpg_keys.asc -d
.
Copy this command to your .travis.yml
file in the before_install
step. Change the output path to write the unencrypted key in /tmp
: -out git_gpg_keys.asc
=> /tmp/git_gpg_keys.asc
. This will avoid to commit / modify / delete the unencrypted keys by mistake on the CI. Then add the commands to decrypt the GPG keys and make it available to git
:
before_install:
# Decrypt the git_gpg_keys.asc.enc key into /tmp/git_gpg_keys.asc
- openssl aes-256-cbc -K $encrypted_AAAAAAAAAAAA_key -iv $encrypted_BBBBBBBBBBBB_iv -in git_gpg_keys.asc.enc -out /tmp/git_gpg_keys.asc -d
# Make sure only the current user can read the keys
- chmod 600 /tmp/git_gpg_keys.asc
# Import the gpg key
- gpg --batch --yes --import /tmp/git_gpg_keys.asc
# Create a script to pass the passphrase to the gpg CLI called by git
- echo '/usr/bin/gpg2 --passphrase ${GPG_PASSPHRASE} --batch --no-tty "$@"' > /tmp/gpg-with-passphrase && chmod +x /tmp/gpg-with-passphrase
# Configure git to use the script that passes the passphrase
- git config gpg.program "/tmp/gpg-with-passphrase"
# Configure git to sign the commits and tags
- git config commit.gpgsign true
# Configure git to use your GPG key
- git config --global user.signingkey ${GPG_KEY_ID}
See Encrypting Files for more details.
Delete the local keys as it won't be used anymore:
$ rm git_gpg_keys.asc
Commit the encrypted keys and the .travis.yml
file to your repository:
$ git add git_gpg_keys.asc.enc .travis.yml
$ git commit -m "ci(travis): Add the encrypted GPG keys"
$ git push