This script, named install_latest_hugo.sh and authored by GJS (homelab-alpha), automates the process of fetching, downloading, installing, and cleaning up the latest version of Hugo from the official GitHub repository.

Here’s a breakdown of the script’s operations:

Script Metadata

  • Filename: install_latest_hugo.sh
  • Author: GJS (homelab-alpha)
  • Date: December 7, 2024
  • Version: 1.1.0
  • Description: This script fetches the latest version of Hugo from the official GitHub repository, downloads it, installs it to /usr/local/hugo-extended, and cleans up the downloaded files.
  • RAW Script: install_latest_hugo.sh

Fetching the Latest Version

The script fetches the latest version of Hugo using the GitHub API. It sends a curl request to the GitHub API endpoint for Hugo releases and uses grep and sed to extract and clean the version number.

LATEST_VERSION=$(curl -s https://api.github.com/repos/gohugoio/hugo/releases/latest | grep '"tag_name":' | sed -E 's/.*"v([^"]+)".*/\1/')

Error Handling for Version Fetching

If the script fails to fetch the latest version of Hugo, it checks if the LATEST_VERSION variable is empty. If so, it logs an error and exits with a status of 1.

if [ -z "$LATEST_VERSION" ]; then
  log_error "Failed to fetch the latest version of Hugo. Exiting."
  exit 1
fi

Constructing the Download URL

The script constructs the download URL for the Hugo binary using the fetched version number.

DOWNLOAD_URL="https://github.com/gohugoio/hugo/releases/download/v${LATEST_VERSION}/hugo_extended_${LATEST_VERSION}_linux-amd64.tar.gz"

Defining the Download Directory

The script saves the downloaded file in the Downloads directory located in the user’s home directory.

DOWNLOAD_DIR="$HOME/Downloads"

Downloading the Latest Version

The script uses wget to download the tar.gz file for the latest Hugo version.

wget "$DOWNLOAD_URL" -O "$DOWNLOAD_DIR/hugo_extended_${LATEST_VERSION}_linux-amd64.tar.gz"

Error Handling for Downloading

If the download fails, the script logs an error and exits.

if ! wget "$DOWNLOAD_URL" -O "$DOWNLOAD_DIR/hugo_extended_${LATEST_VERSION}_linux-amd64.tar.gz"; then
  log_error "Failed to download Hugo version ${LATEST_VERSION}. Exiting."
  exit 1
fi

Extracting the Downloaded File

The script extracts the downloaded tar.gz file into the download directory.

tar -xzf "$DOWNLOAD_DIR/hugo_extended_${LATEST_VERSION}_linux-amd64.tar.gz" -C "$DOWNLOAD_DIR"

Preparing the Installation Directory

The script ensures the target directory /usr/local/hugo-extended exists and cleans up any existing Hugo installation.

sudo mkdir -p /usr/local/hugo-extended
sudo rm -rf /usr/local/hugo-extended/*

Moving Files to the Installation Directory

The Hugo binary and related files are moved to the target installation directory.

sudo mv "$DOWNLOAD_DIR/hugo" /usr/local/hugo-extended/
sudo mv "$DOWNLOAD_DIR/LICENSE" /usr/local/hugo-extended/
sudo mv "$DOWNLOAD_DIR/README.md" /usr/local/hugo-extended/

Verifying the Installation

If the Hugo binary is not found in the target directory, an error is logged, and the script exits with a failure status.

if [ ! -f "/usr/local/hugo-extended/hugo" ]; then
  log_error "Failed to move Hugo binary to /usr/local/hugo-extended. Exiting."
  exit 1
fi

Cleaning Up

The script cleans up the downloaded tar.gz file from the Downloads directory.

rm "$DOWNLOAD_DIR/hugo_extended_${LATEST_VERSION}_linux-amd64.tar.gz"
log "Cleanup complete."

Checking for Hugo Command Availability

Finally, the script verifies whether the hugo command is available in the user’s PATH. If it is not, the script suggests adding it to the PATH and provides instructions for doing so.

if ! command -v hugo &>/dev/null; then
  log_error "Hugo command not found. You may need to add Hugo to your PATH."
  log_error "To do this, add the following line to your ~/.bashrc or ~/.bash_profile:"
  log_error "export PATH=\$PATH:/usr/local/hugo-extended"
  exit 1
else
  log "Verification: Hugo is installed and available."
  log "Hugo version: $(hugo version)"
fi

Conclusion

This script automates the process of downloading and installing the latest version of Hugo, ensuring that users always have the most up-to-date version. It includes comprehensive error handling and provides clear instructions to complete the installation if needed.

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Last updated 07 Dec 2024, 13:05 CET . history