Merge "Add prepare-workspace-git role"

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Zuul 2018-11-19 19:40:40 +00:00 committed by Gerrit Code Review
commit dd3f9fe00b
3 changed files with 74 additions and 0 deletions

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Mirror the local git repos to remote nodes
This role uses git operations (unlike :zuul:role:`prepare-workspace`
which uses rsync) to mirror the locally prepared git repos to the remote
nodes while taking advantage of cached repos on the node if they exist.
This role works generically regardless of the existence of a cached
repo on the node.
The cached repos need to be placed using the canonical name under the
`cached_repos_root` directory.
**Role Variables**
.. zuul:rolevar:: cached_repos_root
:default: /opt/git
The root of the cached repos.

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cached_repos_root: /opt/git

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- name: Find locally cached git repos
stat:
path: "{{ cached_repos_root }}/{{ item.canonical_name }}"
with_items: "{{ zuul.projects.values() | list }}"
register: cached_repos
# We do a bare clone here first so that we skip creating a working copy that
# will be overwritten later anyway.
- name: Clone cached repo to workspace
shell: |
set -e
git clone --bare {{ cached_repos_root }}/{{ item.0.canonical_name }} {{ ansible_user_dir }}/{{ item.0.src_dir}}/.git
cd {{ ansible_user_dir }}/{{ item.0.src_dir }}
git config --local --bool core.bare false
args:
creates: "{{ ansible_user_dir }}/{{ item.0.src_dir}}"
when: item.1.stat.exists
with_together:
- "{{ zuul.projects.values() | list }}"
- "{{ cached_repos.results }}"
# ANSIBLE0006: If we use the git module, we get warning
# ANSIBLE0004 since we do not give an explicit version
tags:
- skip_ansible_lint
- name: Initialize non-cached repos
command: "git init {{ ansible_user_dir }}/{{ item.0.src_dir}}"
args:
creates: "{{ ansible_user_dir }}/{{ item.0.src_dir}}"
when: not item.1.stat.exists
with_together:
- "{{ zuul.projects.values() | list }}"
- "{{ cached_repos.results }}"
# ANSIBLE0006: If we use the git module, we get warning
# ANSIBLE0004 since we do not give an explicit version
tags:
- skip_ansible_lint
- name: Remove origin from local git repos and replace it by the zuul fake origin
# To be idempotent, remove origin only if it's found in the local list.
shell: |
set -e
git remote -v | grep origin && git remote rm origin || true
git remote add origin file:///dev/null
args:
chdir: "{{ ansible_user_dir }}/{{ item.src_dir}}"
with_items: "{{ zuul.projects.values() | list }}"
# ANSIBLE0006: git remote is not supported by ansible module
tags:
- skip_ansible_lint
# TODO(tobiash): we might want to deprecate the role mirror-workspace-git-repos
# and move it here.
- name: Synchronize repos
import_role:
name: mirror-workspace-git-repos