Initial commit

1 files changed, 338 insertions, 0 deletions

diff --git a/neovim.sh b/neovim.sh
new file mode 100644
index 0000000..827e3a0
--- /dev/null
+++ b/neovim.sh
@@ -0,0 +1,338 @@
+#!/bin/bash
+
+# Created By: srdusr
+# Created On: Sat 12 Aug 2023 13:11:39 CAT
+# Project: Install/update/downgrade/change version/uninstall Neovim script, primarily for Linux but may work in other platforms
+
+# Color definitions
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m' # No Color
+BOLD=$(tput bold)
+NORMAL=$(tput sgr0)
+
+# Check if necessary applications are installed
+check_dependencies() {
+    missing_dependencies=()
+
+    for cmd in wget curl xmllint datediff; do
+        if ! [ -x "$(command -v "$cmd")" ]; then
+            missing_dependencies+=("$cmd")
+        fi
+    done
+
+    if [ ${#missing_dependencies[@]} -gt 0 ]; then
+        printf "\n${RED}Missing dependencies: ${missing_dependencies[*]}. Please install them to continue!${NC}\n"
+        exit 1
+    fi
+}
+
+# Check for privilege escalation tools
+check_privilege_tools() {
+    if [ -x "$(command -v sudo)" ]; then
+        PRIVILEGE_TOOL="sudo"
+    elif [ -x "$(command -v doas)" ]; then
+        PRIVILEGE_TOOL="doas"
+    elif [ -x "$(command -v pkexec)" ]; then
+        PRIVILEGE_TOOL="pkexec"
+    elif [ -x "$(command -v dzdo)" ]; then
+        PRIVILEGE_TOOL="dzdo"
+    elif [ "$(id -u)" -eq 0 ]; then
+        PRIVILEGE_TOOL="" # root
+    else
+        PRIVILEGE_TOOL="" # No privilege escalation mechanism found
+        printf "\n${RED}Error: No privilege escalation tool (sudo, doas, pkexec, dzdo, or root privileges) found. You may not have sufficient permissions to run this script.${NC}\n"
+        printf "\nAttempt to continue Installation (might fail without a privilege escalation tool)? [yes/no] "
+        read continue_choice
+        case $continue_choice in
+        [Yy] | [Yy][Ee][Ss]) ;;
+        [Nn] | [Nn][Oo]) exit ;;
+        *) echo "Invalid choice. Exiting..." && exit ;;
+        esac
+    fi
+}
+
+check_privilege_tools
+
+# Install Neovim
+install_neovim() {
+    printf "${GREEN}Installing Neovim...${NC}\n"
+
+    # Detect the operating system to determine the appropriate installation method
+    case "$(uname -s)" in
+    Linux)
+        printf "Detected Linux OS.\n"
+        # Check if FUSE is available
+        if [ -x "$(command -v fusermount)" ]; then
+            printf "FUSE is available. Downloading and running the AppImage...\n"
+            wget https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage -q -O nvim.appimage
+            chmod u+x nvim.appimage
+            "$PRIVILEGE_TOOL" cp nvim.appimage /usr/local/bin/nvim
+            "$PRIVILEGE_TOOL" mv nvim.appimage /usr/bin/nvim
+            nvim
+        else
+            printf "FUSE is not available. Downloading and extracting the AppImage...\n"
+            wget https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage -q -O nvim.appimage
+            chmod u+x nvim.appimage
+            ./nvim.appimage --appimage-extract
+            "$PRIVILEGE_TOOL" cp squashfs-root/usr/bin/nvim /usr/local/bin
+            "$PRIVILEGE_TOOL" mv squashfs-root/usr/bin/nvim /usr/bin
+            nvim
+        fi
+        ;;
+
+    Darwin)
+        printf "Detected macOS.\n"
+        wget https://github.com/neovim/neovim/releases/download/nightly/nvim-macos.tar.gz -q -O nvim-macos.tar.gz
+        xattr -c ./nvim-macos.tar.gz
+        tar xzvf nvim-macos.tar.gz
+        "$PRIVILEGE_TOOL" cp nvim-macos/bin/nvim /usr/local/bin
+        "$PRIVILEGE_TOOL" mv nvim-macos/bin/nvim /usr/bin
+        nvim
+        ;;
+
+    MINGW*)
+        printf "Detected Windows.\n"
+        if [ "$PRIVILEGE_TOOL" = "sudo" ]; then
+            curl -LO https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage && chmod +x nvim.appimage
+            "$PRIVILEGE_TOOL" cp nvim.appimage /usr/local/bin/nvim
+            "$PRIVILEGE_TOOL" mv /usr/local/bin/nvim /usr/bin
+            nvim
+        elif [ "$PRIVILEGE_TOOL" = "" ]; then
+            curl -LO https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage && chmod +x nvim.appimage
+            cp nvim.appimage /usr/local/bin/nvim
+            mv /usr/local/bin/nvim /usr/bin
+            nvim
+        else
+            printf "No privilege escalation tool found. Cannot install Neovim on Windows.\n"
+        fi
+        ;;
+    *)
+        printf "Unsupported operating system.\n"
+        ;;
+    esac
+
+    printf "${GREEN}Neovim has been installed successfully!${NC}\n"
+}
+
+# Uninstall Neovim
+uninstall_neovim() {
+    printf "${RED}Uninstalling Neovim...${NC}\n"
+
+    # Detect the operating system to determine the appropriate uninstallation method
+    case "$(uname -s)" in
+    Linux)
+        printf "Detected Linux OS.\n"
+        "$PRIVILEGE_TOOL" rm /usr/local/bin/nvim
+        "$PRIVILEGE_TOOL" rm /usr/bin/nvim
+        ;;
+
+    Darwin)
+        printf "Detected macOS.\n"
+        "$PRIVILEGE_TOOL" rm /usr/local/bin/nvim
+        "$PRIVILEGE_TOOL" rm /usr/bin/nvim
+        ;;
+
+    MINGW*)
+        printf "Detected Windows.\n"
+        if [ "$PRIVILEGE_TOOL" = "sudo" ]; then
+            "$PRIVILEGE_TOOL" rm /usr/local/bin/nvim
+            "$PRIVILEGE_TOOL" rm /usr/bin/nvim
+        else
+            [ "$PRIVILEGE_TOOL" = "" ]
+            rm /usr/local/bin/nvim
+            rm /usr/bin/nvim
+        fi
+        ;;
+    *)
+        printf "Unsupported operating system.\n"
+        ;;
+    esac
+
+    printf "${GREEN}Neovim has been uninstalled successfully!${NC}\n"
+}
+
+# Check if Neovim is already installed
+check_neovim_installed() {
+    if [ -x "$(command -v nvim)" ]; then
+        return 0 # Neovim is installed
+    else
+        return 1 # Neovim is not installed
+    fi
+}
+
+# Define the variable to control the prompt
+SHOW_PROMPT=1
+
+# Check if necessary dependencies are installed
+check_dependencies
+
+# Check if Neovim is already installed
+if check_neovim_installed; then
+    printf "${GREEN}Neovim is already installed!${NC}\n"
+else
+    # Prompt user for initial installation
+    read -p "Neovim is not installed. Do you want to install it? [yes/no] " install_choice
+    case $install_choice in
+    [Yy]*) install_neovim ;;
+    [Nn]*) ;;
+    *) echo "Please answer yes or no." ;;
+    esac
+fi
+
+# Fetch the latest Neovim Nightly release information from GitHub
+wget https://github.com/neovim/neovim/releases/tag/nightly -q -O - >/tmp/nvim_release_info
+RESPONSE=$(wget https://github.com/neovim/neovim/releases/tag/nightly --save-headers -O - 2>&1)
+
+# Check if the release exists
+if [[ "$RESPONSE" =~ 404\ Not\ Found ]]; then
+    printf "${RED}Unable to fetch latest Neovim Nightly info. Exiting...${NC}\n"
+    exit
+fi
+
+# Initialize variables
+should_prompt=0
+current_version=$(nvim --version | head -n 1)
+new_version=$(xmllint --html --xpath "//pre//code/node()" /tmp/nvim_release_info 2>/dev/null | grep NVIM)
+current_datetime_iso=$(date --iso-8601=ns)
+new_release_datetime_iso=$(xmllint --html --xpath "string(//relative-time/@datetime)" /tmp/nvim_release_info 2>/dev/null)
+time_since_release=$(datediff "$new_release_datetime_iso" "$current_datetime_iso" -f "%H hours %M minutes ago")
+
+# Check if the new Neovim version is available
+if [[ "$new_version" == "" ]]; then
+    printf "\n${RED}Failed to retrieve latest Neovim Nightly version from the repository. Aborting...${NC}\n"
+    exit
+fi
+
+# Check if the current version is already the latest
+if [[ "$current_version" == "$new_version" ]]; then
+    printf "\n${RED}No new ${BOLD}Neovim Nightly${NORMAL}${RED} version found!\n${NC}Last release: ${time_since_release}\nExiting...\n"
+    exit
+fi
+
+# If a newer version is found, prompt the user
+if [[ "$current_version" != "$new_version" ]]; then
+    printf "\n${GREEN}New ${BOLD}Neovim Nightly${NORMAL}${GREEN} version available!${NC}\n${current_version} -> ${BOLD}${new_version}${NORMAL}\nReleased: ${time_since_release}\n\n"
+    should_prompt=1
+fi
+
+# Function to update Neovim Nightly
+update_neovim() {
+    printf "${RED}Updating Neovim Nightly...${NC}\n"
+    download_url="https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage"
+    curl_command="curl -L -w http_code=%{http_code}"
+    curl_output=$("$curl_command" "$download_url" -o /tmp/nvim)
+    http_code=$(echo "$curl_output" | sed -e 's/.*\http_code=//')
+    error_message=$(echo "$curl_output" | sed -e 's/http_code.*//')
+
+    if [[ $http_code == 200 ]]; then
+        chmod +x /tmp/nvim
+        "$PRIVILEGE_TOOL" cp /tmp/nvim /usr/local/bin
+        "$PRIVILEGE_TOOL" mv /tmp/nvim /usr/bin
+        printf "${GREEN}Neovim Nightly updated successfully!${NC}\n"
+    else
+        printf "${RED}Failed to update Neovim Nightly! ERROR: ${error_message}${NC}\n"
+    fi
+}
+
+rm /tmp/nvim_release_info
+
+downgrade_neovim() {
+    # Fetch all the release tags from GitHub
+    ALL_TAGS=$(curl -s "https://api.github.com/repos/neovim/neovim/tags" | grep '"name":' | cut -d '"' -f 4)
+
+    # Filter out major version tags (assumes version tag format is "vx.y.z")
+    MAJOR_VERSIONS=$(echo "$ALL_TAGS" | grep -E "^v[0-9]+\.[0-9]+\.0$")
+
+    # Show available major versions to the user
+    echo "Available major versions:"
+    echo "$MAJOR_VERSIONS"
+
+    # Ask user to choose a version
+    read -p "Enter the major version to downgrade to (e.g., v0.1, v0.2, ...): " DESIRED_MAJOR_VERSION
+
+    # Construct the desired version tag
+    DESIRED_VERSION=$(echo "$MAJOR_VERSIONS" | grep "$DESIRED_MAJOR_VERSION")
+
+    if [ "$DESIRED_VERSION" = "" ]; then
+        echo "Invalid major version. Exiting..."
+        exit 1
+    fi
+
+    printf "${RED}Downgrading Neovim to version $DESIRED_VERSION...${NC}\n"
+
+    # Construct the URL for the desired version's release page on GitHub
+    RELEASE_URL="https://github.com/neovim/neovim/releases/tag/$DESIRED_VERSION"
+
+    # Download the release page HTML
+    wget "$RELEASE_URL" -q -O /tmp/neovim_release.html
+
+    # Find the download URL for the desired version's binary
+    DOWNLOAD_URL=$(grep -o "https://github.com/neovim/neovim/releases/download/$DESIRED_VERSION/nvim.appimage" /tmp/neovim_release.html)
+
+    # Download the desired version of Neovim
+    wget "$DOWNLOAD_URL" -q -O /tmp/nvim
+
+    # Make the downloaded binary executable
+    chmod +x /tmp/nvim
+
+    # Install the downloaded binary to appropriate locations
+    "$PRIVILEGE_TOOL" cp /tmp/nvim /usr/local/bin
+    "$PRIVILEGE_TOOL" mv /tmp/nvim /usr/bin
+
+    # Clean up temporary files
+    rm /tmp/neovim_release.html
+
+    printf "${GREEN}Neovim has been downgraded to version $DESIRED_VERSION successfully!${NC}\n"
+}
+
+use_stable_neovim() {
+    # Fetch the latest stable version tag from GitHub releases
+    STABLE_NVIM_VERSION=$(curl -s "https://api.github.com/repos/neovim/neovim/releases/latest" | grep '"tag_name":' | cut -d '"' -f 4)
+
+    printf "${RED}Using Latest Stable Neovim version $STABLE_NVIM_VERSION...${NC}\n"
+
+    # Construct the URL for the latest stable version's release page on GitHub
+    RELEASE_URL="https://github.com/neovim/neovim/releases/tag/$STABLE_NVIM_VERSION"
+
+    # Download the release page HTML
+    wget "$RELEASE_URL" -q -O /tmp/neovim_release.html
+
+    # Find the download URL for the latest stable version's binary
+    DOWNLOAD_URL=$(grep -o "https://github.com/neovim/neovim/releases/download/$STABLE_NVIM_VERSION/nvim.appimage" /tmp/neovim_release.html)
+
+    # Download the latest stable version of Neovim
+    wget "$DOWNLOAD_URL" -q -O /tmp/nvim
+
+    # Make the downloaded binary executable
+    chmod +x /tmp/nvim
+
+    # Install the downloaded binary to appropriate locations
+    "$PRIVILEGE_TOOL" cp /tmp/nvim /usr/local/bin
+    "$PRIVILEGE_TOOL" mv /tmp/nvim /usr/bin
+
+    # Clean up temporary files
+    rm /tmp/neovim_release.html
+
+    printf "${GREEN}Latest Stable Neovim version $STABLE_NVIM_VERSION has been set up successfully!${NC}\n"
+}
+
+while [ "$SHOW_PROMPT" -gt 0 ]; do
+    read -p "Do you wish to update, downgrade, or use stable Neovim? [update/downgrade/stable/no] " choice
+    case $choice in
+    [Uu]*)
+        update_neovim
+        break
+        ;;
+    [Dd]*)
+        downgrade_neovim
+        break
+        ;;
+    [Ss]*)
+        use_stable_neovim
+        break
+        ;;
+    [Nn]*) exit ;;
+    *) echo "Please choose update, downgrade, stable, or no." ;;
+    esac
+done