[git] Get the unpushed commits of a local repository and their commit timestamp using zsh

Run within the local repository

_LOG="$(git log)"
for _COMMIT in "${(@f)$(git cherry -v)}"
# '${(@f)VARIABLE}' splits VARIABLE (can be command substitution) at linebreaks (otherwise it would get split into words)
do
    _DATE_STRING=$(echo "${_LOG}" | grep -A2 ${_COMMIT[(w)2]} | grep -F Date)
    # (w) spilts into words, [..2] takes the second element
    echo "${_DATE_STRING}  ${_COMMIT}"
done

or as oneliner

_LOG="$(git log)" ; for _COMMIT in "${(@f)$(git cherry -v)}" ; do _DATE_STRING=$(echo "${_LOG}" | grep -A2 ${_COMMIT[(w)2]} | grep -F Date) ; echo "${_DATE_STRING}  ${_COMMIT}" ; done