Git Resource
Tracks the commits in a git repository.
Source Configuration
-
uri
: Required. The location of the repository. -
branch
: The branch to track. This is optional if the resource is only used inget
steps; however, it is required when used in aput
step. If unset forget
, the repository's default branch is used; usuallymaster
but could be different. -
private_key
: Optional. Private key to use when pulling/pushing. Example:private_key: | -----BEGIN RSA PRIVATE KEY----- MIIEowIBAAKCAQEAtCS10/f7W7lkQaSgD/mVeaSOvSF9ql4hf/zfMwfVGgHWjj+W <Lots more text> DWiJL+OFeg9kawcUL6hQ8JeXPhlImG6RTUffma9+iGQyyBMCGd1l -----END RSA PRIVATE KEY-----
-
forward_agent
: Optional Enables ForwardAgent SSH option when set to true. Useful when using proxy/jump hosts. Defaults to false. -
username
: Optional. Username for HTTP(S) auth when pulling/pushing. This is needed when only HTTP/HTTPS protocol for git is available (which does not support private key auth) and auth is required. -
password
: Optional. Password for HTTP(S) auth when pulling/pushing. -
paths
: Optional. If specified (as a list of glob patterns), only changes to the specified files will yield new versions fromcheck
. -
ignore_paths
: Optional. The inverse ofpaths
; changes to the specified files are ignored.Note that if you want to push commits that change these files via a
put
, the commit will still be "detected", ascheck
andput
both introduce versions. To avoid this you should define a second resource that you use for commits that change files that you don't want to feed back into your pipeline - think of one as read-only (withignore_paths
) and one as write-only (which shouldn't need it). -
skip_ssl_verification
: Optional. Skips git ssl verification by exportingGIT_SSL_NO_VERIFY=true
. -
tag_filter
: Optional. If specified, the resource will only detect commits that have a tag matching the expression that have been made against thebranch
. Patterns are glob(7) compatible (as in, bash compatible). -
git_config
: Optional. If specified as (list of pairsname
andvalue
) it will configure git global options, setting each name with each value.This can be useful to set options like
credential.helper
or similar.See the
git-config(1)
manual page for more information and documentation of existing git options. -
disable_ci_skip
: Optional. Allows for commits that have been labeled with[ci skip]
or[skip ci]
previously to be discovered by the resource. -
commit_verification_keys
: Optional. Array of GPG public keys that the resource will check against to verify the commit (details below). -
commit_verification_key_ids
: Optional. Array of GPG public key ids that the resource will check against to verify the commit (details below). The corresponding keys will be fetched from the key server specified ingpg_keyserver
. The ids can be short id, long id or fingerprint. -
gpg_keyserver
: Optional. GPG keyserver to download the public keys from. Defaults tohkp:///keys.gnupg.net/
. -
git_crypt_key
: Optional. Base64 encoded git-crypt key. Setting this will unlock / decrypt the repository withgit-crypt
. To get the key simply executegit-crypt export-key -- - | base64
in an encrypted repository. -
https_tunnel
: Optional. Information about an HTTPS proxy that will be used to tunnel SSH-based git commands over. Has the following sub-properties:proxy_host
: Required. The host name or IP of the proxy serverproxy_port
: Required. The proxy server's listening portproxy_user
: Optional. If the proxy requires authentication, use this usernameproxy_password
: Optional. If the proxy requires authenticat, use this password
Example
Resource configuration for a private repo with an HTTPS proxy:
resources:
- name: source-code
type: git
source:
uri: git@github.com:concourse/git-resource.git
branch: master
private_key: |
-----BEGIN RSA PRIVATE KEY-----
MIIEowIBAAKCAQEAtCS10/f7W7lkQaSgD/mVeaSOvSF9ql4hf/zfMwfVGgHWjj+W
<Lots more text>
DWiJL+OFeg9kawcUL6hQ8JeXPhlImG6RTUffma9+iGQyyBMCGd1l
-----END RSA PRIVATE KEY-----
git_config:
- name: core.bigFileThreshold
value: 10m
disable_ci_skip: true
git_crypt_key: AEdJVEN...snip...AAA==
https_tunnel:
proxy_host: proxy-server.mycorp.com
proxy_port: 3128
proxy_user: myuser
proxy_password: myverysecurepassword
Fetching a repo with only 100 commits of history:
- get: source-code
params: {depth: 100}
Pushing local commits to the repo:
- get: some-other-repo
- put: source-code
params: {repository: some-other-repo}
Behavior
check
: Check for new commits.
The repository is cloned (or pulled if already present), and any commits
from the given version on are returned. If no version is given, the ref
for HEAD
is returned.
Any commits that contain the string [ci skip]
will be ignored. This
allows you to commit to your repository without triggering a new version.
in
: Clone the repository, at the given ref.
Clones the repository to the destination, and locks it down to a given ref. It will return the same given ref as version.
git-crypt
encrypted repositories will automatically be decrypted, when the
correct key is provided set in git_crypt_key
.
Parameters
-
depth
: Optional. If a positive integer is given, shallow clone the repository using the--depth
option. To prevent newer commits that do not pass apaths
filter test from skewing the cloned history away fromversion.ref
, this resource will automatically deepen the clone untilversion.ref
is found again. -
submodules
: Optional. Ifnone
, submodules will not be fetched. If specified as a list of paths, only the given paths will be fetched. If not specified, or ifall
is explicitly specified, all submodules are fetched. -
submodule_recursive
: Optional. Iffalse
, a flat submodules checkout is performed. If not specified, or iftrue
is explicitly specified, a recursive checkout is performed. -
submodule_remote
: Optional. Iftrue
, the submodules are checked out for the specified remote branch specified in the.gitmodules
file of the repository. If not specified, or iffalse
is explicitly specified, the tracked sub-module revision of the repository is used to check out the submodules. -
disable_git_lfs
: Optional. Iftrue
, will not fetch Git LFS files. -
clean_tags
: Optional. Iftrue
all incoming tags will be deleted. This is useful if you want to push tags, but have reasonable doubts that the tags cached with the resource are outdated. The default value isfalse
. -
short_ref_format
: Optional. When populating.git/short_ref
use thisprintf
format. Defaults to%s
.
GPG signature verification
If commit_verification_keys
or commit_verification_key_ids
is specified in
the source configuration, it will additionally verify that the resulting commit
has been GPG signed by one of the specified keys. It will error if this is not
the case.
Additional files populated
-
.git/committer
: For committer notification on failed builds. This special file.git/committer
which is populated with the email address of the author of the last commit. This can be used together with an email resource like mdomke/concourse-email-resource to notify the committer in an on_failure step. -
.git/ref
: Version reference detected and checked out. It will usually contain the commit SHA-1 ref, but also the detected tag name when usingtag_filter
. -
.git/short_ref
: Short (first seven characters) of the.git/ref
. Can be templated withshort_ref_format
parameter. -
.git/commit_message
: For publishing the Git commit message on successful builds.
out
: Push to a repository.
Push the checked-out reference to the source's URI and branch. All tags are
also pushed to the source. If a fast-forward for the branch is not possible
and the rebase
parameter is not provided, the push will fail.
Parameters
-
repository
: Required. The path of the repository to push to the source. -
rebase
: Optional. If pushing fails with non-fast-forward, continuously attempt rebasing and pushing. -
merge
: Optional. If pushing fails with non-fast-forward, continuously attempt to merge remote to local before pushing. Only one ofmerge
orrebase
can be provided, but not both. -
tag
: Optional. If this is set then HEAD will be tagged. The value should be a path to a file containing the name of the tag. -
only_tag
: Optional. When set to 'true' push only the tags of a repo. -
tag_prefix
: Optional. If specified, the tag read from the file will be prepended with this string. This is useful for addingv
in front of version numbers. -
force
: Optional. When set to 'true' this will force the branch to be pushed regardless of the upstream state. -
annotate
: Optional. If specified the tag will be an annotated tag rather than a lightweight tag. The value should be a path to a file containing the annotation message. -
notes
: Optional. If this is set then notes will be added to HEAD to therefs/notes/commits
ref. The value should be a path to a file containing the notes.
Development
Prerequisites
- golang is required - version 1.9.x is tested; earlier versions may also work.
- docker is required - version 17.06.x is tested; earlier versions may also work.
Running the tests
The tests have been embedded with the Dockerfile
; ensuring that the testing
environment is consistent across any docker
enabled platform. When the docker
image builds, the test are run inside the docker container, on failure they
will stop the build.
Run the tests with the following commands for both alpine
and ubuntu
images:
docker build -t git-resource -f dockerfiles/alpine/Dockerfile .
docker build -t git-resource -f dockerfiles/ubuntu/Dockerfile .
Note about the integration tests
If you want to run the integration tests, a bit more work is required. You will require
an actual git repo to which you can push and pull, configured for SSH access. To do this,
add two files to integration-tests/ssh
(note that names are important):
test_key
: This is the private key used to authenticate against your repo.test_repo
: This file contains one line of the formtest_repo_url[#test_branch]
. If the branch is not specified, it defaults tomaster
. For example,git@github.com:concourse-git-tester/git-resource-integration-tests.git
orgit@github.com:concourse-git-tester/git-resource-integration-tests.git#testing
Contributing
Please make all pull requests to the master
branch and ensure tests pass
locally.