gistfile1.sh

#!/bin/bash                                                                                                                                                                                                                                    

COMMITS=$(git log --oneline | cut -d " " -f 1)

for COMMIT in $COMMITS
do
    git checkout $COMMIT
    
    ./path/to/script.sh
                                                                                                                                                                                                                                
    if [ $? -eq 0 ]
    then
        echo $COMMIT passed
    else
        echo $COMMIT failed
    fi                                                                                                                                                                                                               
done

git checkout master

./path/to/script can be an absolute path or relative to the current working directory (pwd). $? holds the exit code of the last executed command. So assuming your script exits with a non-zero exit code on failure, the rest will just work.