git-filter-repo:tldr:5cf1e

The command git filter-repo --replace-text is used to perform a text replacement operation on the Git repository history. It allows you to replace occurrences of a specific text string with another string throughout the entire repository history.

In this specific command, <(echo '${find}==>${replacement}') is a "process substitution" that provides the replacement pattern to the git filter-repo command.

Let's break down this command further:

1. git filter-repo is the command for executing the filter-repo tool, which is a more efficient and flexible alternative to Git's native filter-branch command. It allows you to perform filtering and transformation tasks on the repository history.

2. --replace-text is an option for the git filter-repo command. It specifies that a text replacement operation needs to be performed.

3. <(echo '${find}==>${replacement}') is the replacement pattern provided to the --replace-text option. It uses the process substitution technique (<()) to pass the output of the echo command as input to the git filter-repo command.

   • echo '${find}==>${replacement}' is an echo command that generates the replacement pattern. It uses ${find} and ${replacement} as placeholder variables for the text to be found and the text to replace it with, respectively. You would need to replace ${find} and ${replacement} with the actual text values.

   For example, if you wanted to replace all occurrences of the string "old" with "new", the command would look like this: git filter-repo --replace-text <(echo 'old==>new').

In summary, the git filter-repo --replace-text command utilizes the filter-repo tool to replace occurrences of a specific text string with another string across the entire Git repository history, using the provided replacement pattern.