Composite action to get the actual text diff between two commits
Right now, it only supports getting the added text on modified files, without any diff tags.
To use it, you can simply add the following line on your GitHub Actions steps:
uses: fernandosmither/git-full-diff@<TAG>
Then, you can access your diff with ${{ steps.<step_id>.outputs.diff }}
Make sure to change TAG with the desired version. Eg: git-full-diff@v1.0.0
This example gets the full diff and outputs it.
.github/workflows/main.yaml:
on: [push]
jobs:
hello_world_job:
runs-on: ubuntu-latest
name: A job to say hello
steps:
- uses: actions/checkout@v3
with:
fetch-depth: 0
- id: git-full-diff
uses: fernandosmither/git-full-diff@v1.0.2
- name: display diff
run: |
EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
cat <<$EOF
${{ steps.git-full-diff.outputs.diff }}
$EOF
shell: bash
- To use this action, you must also invoke actions/checkout before with the tag fetch-depth: 0, as actions/checkout gives you by default a grafted git history only with the latest commit.
- You could simply display the output with
echo ${{ steps.git-full-diff.outputs.diff }}. However, since in this case (and also probably yours)${{ steps.git-full-diff.outputs.diff }}is a multiline string you cannot simply echo it. The code example shows the cleanest way I found to accomplish this. If you have any suggestions to improve the code, let me know in an Issue!
For example:
If the git diff is:
diff --git a/README.md b/README.md
index eadb0f6..eb451f1 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,8 @@
# New added title
-Text!
\ No newline at end of file
+
+
+# This is a new header
+
+This is new text
You would get:
# This is a new header
This is new text
If you'd like a similar use case (for instance, showing only deleted text), please open an issue explaining your case and desired output, and I'll deliver ASAP.