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| 1 | +#!/bin/bash |
| 2 | + |
| 3 | +set -e # Exit immediately if a command exits with a non-zero status |
| 4 | +set -x |
| 5 | + |
| 6 | +# Define variables |
| 7 | +GO_URL="https://go.dev/dl/" |
| 8 | +ARCH="linux-amd64" |
| 9 | +INSTALL_DIR="/usr/local" |
| 10 | +TEMP_DIR="/tmp/go-install" |
| 11 | +PROFILE_FILE="$HOME/.bashrc" # Change to ~/.zshrc if using zsh |
| 12 | + |
| 13 | +# Fetch latest Go version |
| 14 | +LATEST_VERSION=$(curl -s https://go.dev/VERSION?m=text | head -n 1) |
| 15 | +GO_TARBALL="${LATEST_VERSION}.${ARCH}.tar.gz" |
| 16 | +GO_TARBALL_URL="${GO_URL}${GO_TARBALL}" |
| 17 | +CHECKSUM_URL="$GO_URL?mode=json" |
| 18 | +JSON_FILE="go_versions.json" |
| 19 | + |
| 20 | +echo "Latest Go version: $LATEST_VERSION" |
| 21 | +echo "Downloading $GO_TARBALL from $GO_TARBALL_URL..." |
| 22 | + |
| 23 | +# Create temp directory and download files |
| 24 | +mkdir -p "$TEMP_DIR" |
| 25 | +cd "$TEMP_DIR" |
| 26 | +curl -O "$GO_TARBALL_URL" -v -L |
| 27 | +#curl -o $JSON_FILE "$CHECKSUM_URL" |
| 28 | + |
| 29 | +# Verify checksum |
| 30 | +#echo "Verifying checksum..." |
| 31 | +#sha256sum -c "$(basename "$CHECKSUM_URL")" |
| 32 | + |
| 33 | +# Define the JSON file (or fetch it dynamically) |
| 34 | + |
| 35 | +# Extract the latest stable Go version |
| 36 | +#LATEST_VERSION=$(grep -oP '"version":\s*"\Kgo[0-9]+\.[0-9]+\.[0-9]+' "$JSON_FILE" | head -n 1) |
| 37 | + |
| 38 | +# Extract SHA256 checksum for Linux AMD64 tarball |
| 39 | + |
| 40 | +#CHECKSUM=$(awk -v version="$LATEST_VERSION" ' |
| 41 | +# $0 ~ "\"version\": \"" version "\"" { in_version = 1 } |
| 42 | +# in_version && $0 ~ "\"filename\": \"" version ".linux-amd64.tar.gz\"" { in_file = 1 } |
| 43 | +# in_file && $0 ~ "\"sha256\": \"" { |
| 44 | +# match($0, /"sha256":\s*"([^"]+)"/, arr) |
| 45 | +# print arr[1] |
| 46 | +# exit |
| 47 | +# } |
| 48 | +#' "$JSON_FILE") |
| 49 | + |
| 50 | +# Print results |
| 51 | +#echo "Latest Go Version: $LATEST_VERSION" |
| 52 | +#echo "SHA256: $CHECKSUM" |
| 53 | + |
| 54 | +# Remove existing Go installation if present |
| 55 | +if [ -d "${INSTALL_DIR}/go" ]; then |
| 56 | + echo "Removing existing Go installation..." |
| 57 | + sudo rm -rf "${INSTALL_DIR}/go" |
| 58 | +fi |
| 59 | + |
| 60 | +# Extract and install Go |
| 61 | +echo "Installing Go..." |
| 62 | +sudo tar -C "$INSTALL_DIR" -xzf "$GO_TARBALL" |
| 63 | + |
| 64 | +# Add Go to PATH |
| 65 | +if ! grep -q 'export PATH=$PATH:/usr/local/go/bin' "$PROFILE_FILE"; then |
| 66 | + echo 'export PATH=$PATH:/usr/local/go/bin' >> "$PROFILE_FILE" |
| 67 | + echo 'export PATH=$PATH:$HOME/go/bin' >> "$PROFILE_FILE" |
| 68 | + echo "Go has been added to your PATH. Run 'source $PROFILE_FILE' to apply changes." |
| 69 | +fi |
| 70 | + |
| 71 | +# Cleanup |
| 72 | +echo "Cleaning up..." |
| 73 | +rm -rf "$TEMP_DIR" |
| 74 | + |
| 75 | +echo "Go installation completed successfully!" |
| 76 | + |
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