Git log to get commits only for a specific branch

Question

I want to list all commits that are only part of a specific branch.

With the following, it lists all the commits from the branch, but also from the parent (master)

Answer 1

This will output the commits on the current branch. If any argument is passed, it just outputs the hashes.

git_show_all_commits_only_on_this_branch

#!/bin/bash
function show_help()
{
  ME=$(basename $0)
  IT=$(cat < default. compares current branch to master
  $ME B1      -> compares branch B1 to master
  $ME B1 B2   -> compares branch B1 to B2
  $ME B1 B2 V -> compares branch B1 to B2, and displays commit messages
  
  )
  echo "$IT"
  exit
}

if [ "$1" == "help" ]
then
  show_help
fi

# Show commit msgs if any arg passed for arg 3
if [ "$3" ]
then
  OPT="-v"
fi

# get branch names
OLDER_BRANCH=${2:-"master"}
if [ -z "$1" ]
then
  NEWER_BRANCH=$(git rev-parse --abbrev-ref HEAD)
else
  NEWER_BRANCH=$1
fi

if [ "$NEWER_BRANCH" == "$OLDER_BRANCH" ]
then
  echo "  Please supply 2 different branches to compare!"
  show_help
fi

OUT=$(\git cherry $OPT $OLDER_BRANCH $NEWER_BRANCH)

if [ -z "$OUT" ]
then
  echo "No differences found. The branches $NEWER_BRANCH and $OLDER_BRANCH are in sync."
  exit;
fi

if [ "$OPT" == "-v" ]
then
  echo "$OUT"
else
  echo "$OUT" | awk '{print $2}'
fi