GitLab API Upload Creates Incorrect File

How to Use GitLab
, ,
1

Problem Description:

I am trying to upload binary artifacts to a GitLab repository using the GitLab API. The upload appears to succeed based on the API response, but the files in the repository are not of the expected size. Instead, they are 56 bytes and contain the text:

#<ActionDispatch::Http::UploadedFile:0x00007fba5dff2a98>

Current Setup:

I use a curl command in a CI/CD pipeline to upload the files as follows:

curl --request POST \
  --header "PRIVATE-TOKEN: $TARGET_PROJECT_TOKEN" \
  --form "branch=$TARGET_BRANCH" \
  --form "commit_message=Upload Linux artifact" \
  --form "actions[][action]=create" \
  --form "actions[][file_path]=bin/$OS_ARCH/libtest.so" \
  --form "actions[][content]=@${ARTIFACT_PATH}" \
  "https://gitlab.inria.fr/api/v4/projects/$TARGET_PROJECT_ID/repository/commits"

Variables:

  • ARTIFACT_PATH1 points to a binary file (e.g., artifacts/libtest.so) of size 256 KB.
  • $OS_ARCH evaluates to linux-x86_64.
  • $TARGET_PROJECT_TOKEN, $TARGET_BRANCH, and $TARGET_PROJECT_ID are set correctly.

Observations:

  1. File Size Issue:
    The file in the repository is only 56 bytes, whereas the original file is 256 KB.

  2. Content of the Uploaded File:
    The uploaded file’s content in GitLab is:

    #<ActionDispatch::Http::UploadedFile:0x00007fba5dff2a98>

  3. API Response:
    The curl command indicates success with the following output:

    % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                Dload  Upload   Total   Spent    Left  Speed
100  256k  100   761  100  255k    274  94492  0:00:02  0:00:02 --:--:-- 94732

Question:

Why does the uploaded file contain #<ActionDispatch::Http::UploadedFile> instead of the actual content of the binary file?

Additional Information:

  • GitLab version: 17.7.0
  • CI/CD runner: self-hosted
  • OS: Ubuntu

Any help or guidance would be greatly appreciated!