我们如何创建自上次部署以来已更改的文件列表？ 使用Git

Question

We are using TFS to deploy PDF files from a Git repository.

Deployments are tied to a specific branch.

Every so often it is decided that the branch contains good enough files to deploy.

We only want to deploy the files which have changed since the last deploy, not the entire branch. It is huge and takes too long to deploy the whole thing.

How can we tag the branch in a certain way when deployments happen and then when the next deployment is desired, compare the current branch to the tag and then deploy only the changes / differences / deltas?

Just to emphasize, this branch only contains PDF files, not code. It does not need to be compiled.

TO CLARIFY:

On the build server, we want to avoid having to clone the entire repository every time the deployment process runs. Usually, the first step in the deploy is to clone the repository, but this is taking too long. Is there a way to only pull down the files which have been added or modified? Sparse checkout perhaps?

Answer 1

All the answer is in your question:

1. each time you want to deploy, you create a tag: git tag XYZ ${COMMIT_TO_TAG}
2. to compare with previous tag by listing just files: git diff --name-status ${PREVIOUS_TAG}..${TAG_TO_DEPLOY}

To find the previous tag:

• before creating the current tag: git describe --first-parent --tags --abbrev=0 ${COMMIT_TO_TAG}
• after creating the current tag: git describe --first-parent --tags --abbrev=0 ${TAG_TO_DEPLOY}~1