Space in Git --commit-filter for GIT_AUTHOR_NAME

Question

I am attempting to rename all commits' authors in a local repository before uploading to GitHub, but I get an error if the name contains a space. The repository was not originally configured with a name and all commits are from the same user.

Here is the script I have been using:

git filter-branch --commit-filter '
GIT_AUTHOR_NAME="FirstName LastName";
GIT_AUTHOR_EMAIL="FirstNameLastName@users.noreply.github.com";
GIT_COMMITTER_NAME="FirstName LastName";
GIT_COMMITTER_EMAIL="FirstNameLastName@users.noreply.github.com";
git commit-tree "$@";' HEAD

And the error that results:

fatal: ambiguous argument 'LastName;
GIT_AUTHOR_EMAIL=FirstNameLastName@users.noreply.github.com;
GIT_COMMITTER_NAME=FirstName': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

I have attempted to resolve the issue by escaping the space with \ however I have only been able to successfully run the script by removing the space, e.g. FirstName LastName becomes FirstNameLastName

Answer 1

An additional solution which is working on powershell core:

param(
    [Parameter(Mandatory = $true)]
    [string]
    $name,

    [Parameter(Mandatory = $true)]
    [string]
    $email
)
$command = @"
GIT_COMMITTER_EMAIL='$mail';
GIT_AUTHOR_EMAIL='$mail';
GIT_COMMITTER_NAME='$name';
GIT_AUTHOR_NAME='$name';
git commit-tree "$@";
"@

& git filter-branch -f --commit-filter $command head

Answer 2

Seems to be an issue with Powershell on Windows. After switching to Git Bash the script ran correctly with the spaces.

Answer 3

Try

git filter-branch --commit-filter "
GIT_AUTHOR_NAME='FirstName LastName';
GIT_AUTHOR_EMAIL='FirstNameLastName@users.noreply.github.com';
GIT_COMMITTER_NAME='FirstName LastName';
GIT_COMMITTER_EMAIL='FirstNameLastName@users.noreply.github.com';
git commit-tree ""$@"";" HEAD

I changed the " to ' and vice versa and added double quotes around $@