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---
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stage: Create
group: Source Code
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
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---
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# Subtree **(FREE)**
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- Used when there are nested repositories.
- Not recommended when the amount of dependencies is too large.
- For these cases we need a dependency control system.
- Command are painfully long so aliases are necessary.
## Subtree Aliases
- Add: `git subtree add --prefix <target-folder> <url> <branch> --squash`
- Pull: `git subtree pull --prefix <target-folder> <url> <branch> --squash`
- Push: `git subtree add --prefix <target-folder> <url> <branch>`
- Ex: `git config alias.sbp 'subtree pull --prefix st /
git@gitlab.com:balameb/subtree-nested-example.git master --squash'`
```shell
# Add an alias
# Add
git config alias.sba 'subtree add --prefix st /
git@gitlab.com:balameb/subtree-nested-example.git master --squash'
# Pull
git config alias.sbpl 'subtree pull --prefix st /
git@gitlab.com:balameb/subtree-nested-example.git master --squash'
# Push
git config alias.sbph 'subtree push --prefix st /
git@gitlab.com:balameb/subtree-nested-example.git master'
# Adding this subtree adds a st dir with a readme
git sba
vi st/README.md
# Edit file
git status shows differences
```
```shell
# Adding, or committing won't change the sub repo at remote
# even if we push
git add -A
git commit -m "Adding to subtree readme"
# Push to subtree repo
git sbph
# now we can check our remote sub repo
```
