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Diffstat (limited to 'doc/ci/large_repositories/index.md')
| -rw-r--r-- | doc/ci/large_repositories/index.md | 33 |
1 files changed, 10 insertions, 23 deletions
diff --git a/doc/ci/large_repositories/index.md b/doc/ci/large_repositories/index.md index 0019eb5f40c..f25ef7c725a 100644 --- a/doc/ci/large_repositories/index.md +++ b/doc/ci/large_repositories/index.md @@ -56,29 +56,16 @@ test: > Introduced in GitLab Runner 8.9. -By default, GitLab is configured to always prefer the `GIT_STRATEGY: fetch` strategy. -The `GIT_STRATEGY: fetch` strategy will re-use existing worktrees if found -on disk. This is different to the `GIT_STRATEGY: clone` strategy -as in case of clones, if a worktree is found, it is removed before clone. - -Usage of `fetch` is preferred because it reduces the amount of data to transfer and +By default, GitLab is configured to use the [`fetch` Git strategy](../runners/README.md#git-strategy), +which is recommended for large repositories. +This strategy reduces the amount of data to transfer and does not really impact the operations that you might do on a repository from CI. -However, `fetch` does require access to the previous worktree. This works -well when using the `shell` or `docker` executor because these -try to preserve worktrees and try to re-use them by default. - -This does not work today for `kubernetes` executor and has limitations when using -`docker+machine`. `kubernetes` executor today always clones into ephemeral directory. - -GitLab also offers the `GIT_STRATEGY: none` strategy. This disables any `fetch` and `checkout` commands -done by GitLab, requiring you to do them. - ## Git clone path > Introduced in GitLab Runner 11.10. -[`GIT_CLONE_PATH`](../yaml/README.md#custom-build-directories) allows you to +[`GIT_CLONE_PATH`](../runners/README.md#custom-build-directories) allows you to control where you clone your sources. This can have implications if you heavily use big repositories with fork workflow. @@ -90,7 +77,7 @@ In such cases, ideally you want to make the GitLab Runner executor be used only for the given project and not shared across different projects to make this process more efficient. -The [`GIT_CLONE_PATH`](../yaml/README.md#custom-build-directories) has to be +The [`GIT_CLONE_PATH`](../runners/README.md#custom-build-directories) has to be within the `$CI_BUILDS_DIR`. Currently, it is impossible to pick any path from disk. @@ -98,12 +85,12 @@ from disk. > Introduced in GitLab Runner 11.10. -[`GIT_CLEAN_FLAGS`](../yaml/README.md#git-clean-flags) allows you to control +[`GIT_CLEAN_FLAGS`](../runners/README.md#git-clean-flags) allows you to control whether or not you require the `git clean` command to be executed for each CI job. By default, GitLab ensures that you have your worktree on the given SHA, and that your repository is clean. -[`GIT_CLEAN_FLAGS`](../yaml/README.md#git-clean-flags) is disabled when set +[`GIT_CLEAN_FLAGS`](../runners/README.md#git-clean-flags) is disabled when set to `none`. On very big repositories, this might be desired because `git clean` is disk I/O intensive. Controlling that with `GIT_CLEAN_FLAGS: -ffdx -e .build/` (for example) allows you to control and disable removal of some @@ -112,7 +99,7 @@ the incremental builds. This has the biggest effect if you re-use existing machines and have an existing worktree that you can re-use for builds. For exact parameters accepted by -[`GIT_CLEAN_FLAGS`](../yaml/README.md#git-clean-flags), see the documentation +[`GIT_CLEAN_FLAGS`](../runners/README.md#git-clean-flags), see the documentation for [`git clean`](https://git-scm.com/docs/git-clean). The available parameters are dependent on Git version. @@ -120,14 +107,14 @@ are dependent on Git version. > [Introduced](https://gitlab.com/gitlab-org/gitlab-runner/-/issues/4142) in GitLab Runner 13.1. -[`GIT_FETCH_EXTRA_FLAGS`](../yaml/README.md#git-fetch-extra-flags) allows you +[`GIT_FETCH_EXTRA_FLAGS`](../runners/README.md#git-fetch-extra-flags) allows you to modify `git fetch` behavior by passing extra flags. For example, if your project contains a large number of tags that your CI jobs don't rely on, you could add [`--no-tags`](https://git-scm.com/docs/git-fetch#Documentation/git-fetch.txt---no-tags) to the extra flags to make your fetches faster and more compact. -See the [`GIT_FETCH_EXTRA_FLAGS` documentation](../yaml/README.md#git-fetch-extra-flags) +See the [`GIT_FETCH_EXTRA_FLAGS` documentation](../runners/README.md#git-fetch-extra-flags) for more information. ## Fork-based workflow |