my-env/install/git

#!/bin/bash
##makedesc: Install git (latest)

echo
echo "==============================================="
echo "Installing git (latest)..."
echo "==============================================="
echo

installed() {
    command -v "$1" >/dev/null 2>&1
}

! installed make && sudo apt install -y make

if installed git; then
    if [ -d "${HOME}/install/git" ]; then
        cd /usr/src/git/ && \
            git pull
    else
        git clone https://github.com/git/git.git --depth=1 "${HOME}/install/git" && \
            cd /usr/src/git/
    fi
    sudo make prefix=/usr/local all && \
        sudo make prefix=/usr/local install
else
    ! installed wget && sudo apt install -y wget
    [ -d "${HOME}/install/git" ] || mkdir -p "${HOME}/install/git"
    wget https://github.com/git/git/archive/master.zip -O /tmp/git.zip && \
        unzip -q /tmp/git.zip -d "${HOME}/install/git" && \
        rm /tmp/git.zip && \
        cd "${HOME}/install/git/git-master" && \
        sudo make prefix=/usr/local all && \
        sudo make prefix=/usr/local install && \
        cd - && \
        rm -rf git && \
        git clone https://github.com/git/git.git --depth=1 "${HOME}/install/git"
fi

git --version