dvc-diff:tldr:4b2fb

The command "dvc diff --show-json --show-hash ${commit}" is used to compare the changes made to a particular commit in a DVC (Data Version Control) project. Here is an explanation of the various components of the command:

• "dvc diff": This is the DVC command used for comparing differences or changes.
• "--show-json": This flag instructs DVC to display the differences in JSON format. JSON (JavaScript Object Notation) is a lightweight data interchange format.
• "--show-hash": This flag tells DVC to include the hash or unique identifier of the changed files in the comparison output.
• "${commit}": This is a placeholder that needs to be replaced with the specific commit or reference you want to compare against. It can be a commit hash or a branch or tag name.

When you run this command with the appropriate commit as a parameter, DVC will compare the changes made in that particular commit and display the differences in a JSON format, including the hash of the changed files. This can be useful to understand what has changed in the project and track the modifications made in different commits.