feat(action): add Markdown to HTML publishing workflow
- Introduce a GitHub Action to convert Markdown files to HTML using Pandoc - Configure steps for repository checkout, git setup, and branch management - Include scripts for Markdown conversion, Pandoc installation, and git setup - Automate the publishing of HTML output to a specified branch
This commit is contained in:
147
scripts/install-pandoc.sh
Executable file
147
scripts/install-pandoc.sh
Executable file
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#!/usr/bin/env bash
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#=== HELP START ===
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# install-pandoc.sh – Installs the Pandoc binary
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#
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# Usage:
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# sudo ./install-pandoc.sh [options] [<version>]
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#
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# Options:
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# -a, --arch <amd64|arm64> Target architecture (default: auto-detected)
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# -d, --dir <path> Installation directory (default: /usr/local/bin)
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# -n, --dry-run Download and verify, but DO NOT install
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# -h, --help Show this help message
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#
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# Arguments:
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# <version> Pandoc version to install (default: latest)
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#
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# Behaviour:
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# • If pandoc is already in PATH and no version was requested, the script exits.
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# • If a specific version was requested, the installed version is only upgraded if it differs.
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#=== HELP END ===
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set -euo pipefail
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REPO="jgm/pandoc"
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# ───────────────────────────────────────────────
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# Defaults
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INSTALL_DIR_DEFAULT="/usr/local/bin"
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INSTALL_DIR="$INSTALL_DIR_DEFAULT"
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ARCH_INPUT=""
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VERSION="latest"
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DRY_RUN=false
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USER_VERSION_SPECIFIED=false
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# ───────────────────────────────────────────────
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# 0 Help function
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show_help() {
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sed -n '/^#=== HELP START ===/,/^#=== HELP END ===/ {
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/^#=== HELP START ===/d
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/^#=== HELP END ===/d
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s/^#//
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p
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}' "$0"
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}
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# 1 Parse options
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POSITIONAL=()
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-h|--help) show_help; exit 0 ;;
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-n|--dry-run) DRY_RUN=true; shift ;;
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-a|--arch)
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[[ $# -lt 2 ]] && { echo "❌ Option $1 requires an argument"; exit 1; }
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ARCH_INPUT="$2"; shift 2 ;;
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-d|--dir)
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[[ $# -lt 2 ]] && { echo "❌ Option $1 requires an argument"; exit 1; }
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INSTALL_DIR="$2"; shift 2 ;;
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*) POSITIONAL+=("$1"); shift ;;
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esac
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done
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if [[ ${#POSITIONAL[@]} -gt 0 ]]; then
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VERSION="${POSITIONAL[0]}"
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USER_VERSION_SPECIFIED=true
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fi
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# 2 Detect / normalize architecture
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detect_arch() {
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case "$(uname -m)" in
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x86_64) echo "linux-amd64" ;;
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aarch64|arm64) echo "linux-arm64" ;;
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*) echo "unsupported" ;;
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esac
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}
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ARCH_TAG=""
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if [[ -n "$ARCH_INPUT" ]]; then
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case "$ARCH_INPUT" in
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amd64|linux-amd64) ARCH_TAG="linux-amd64" ;;
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arm64|aarch64|linux-arm64) ARCH_TAG="linux-arm64" ;;
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*) echo "❌ Unknown architecture: $ARCH_INPUT"; exit 1 ;;
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esac
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else
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ARCH_TAG=$(detect_arch)
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if [[ "$ARCH_TAG" == "unsupported" ]]; then
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echo "❌ Automatic architecture detection failed. Please use -a."
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exit 1
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fi
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fi
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# 3 Pre-check existing installation
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if command -v pandoc >/dev/null; then
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INSTALLED_PATH=$(command -v pandoc)
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INSTALLED_VER=$(pandoc -v | head -n1 | awk '{print $2}')
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if ! $USER_VERSION_SPECIFIED; then
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echo "✅ pandoc already present at ${INSTALLED_PATH} (version ${INSTALLED_VER}) – nothing to do."
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exit 0
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else
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if [[ "$INSTALLED_VER" == "$VERSION" ]]; then
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echo "✅ pandoc ${INSTALLED_VER} already installed – requested version matches."
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exit 0
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else
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echo "ℹ️ pandoc ${INSTALLED_VER} installed, upgrading to ${VERSION}..."
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fi
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fi
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fi
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# 4 Check required tools
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need() { command -v "$1" >/dev/null || { echo "$1 is missing"; exit 1; }; }
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need curl; need tar; need grep; need sed; need awk; need jq
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# 5 Fetch release info
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if [[ "$VERSION" == "latest" ]]; then
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API_URL="https://api.github.com/repos/${REPO}/releases/latest"
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else
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API_URL="https://api.github.com/repos/${REPO}/releases/tags/${VERSION}"
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fi
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echo "🔍 Fetching release info (${API_URL})…"
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JSON=$(curl -fsSL "$API_URL") || { echo "❌ Failed to fetch release info"; exit 1; }
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VERSION=$(jq -r '.tag_name' <<< "$JSON") || { echo "❌ Could not extract version"; exit 1; }
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ASSET_URL=$(jq -r '.assets[]?.browser_download_url' <<< "$JSON" |
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grep -E "pandoc-.*-${ARCH_TAG}\.tar\.gz$" | head -n1)
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[[ -z "$ASSET_URL" ]] && { echo "❌ Matching asset not found for architecture ${ARCH_TAG}"; exit 1; }
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ASSET_FILE=$(basename "$ASSET_URL")
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echo "📦 Downloading pandoc ${VERSION} (${ASSET_FILE}) …"
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TMP=$(mktemp -d)
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curl -#L -o "${TMP}/${ASSET_FILE}" "$ASSET_URL"
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# 6 Extract
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tar -C "$TMP" -xzf "${TMP}/${ASSET_FILE}"
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# 7 Locate binary
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BIN_PATH=$(find "$TMP" -type f -name pandoc -perm -u+x | head -n1)
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[[ -z "$BIN_PATH" ]] && { echo "❌ Binary not found"; exit 1; }
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# 8 Install / Dry-run
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if $DRY_RUN; then
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echo "🧪 Dry-run: verified pandoc binary at ${BIN_PATH}"
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echo "ℹ️ Would install to: ${INSTALL_DIR}/pandoc (sudo install -m755 …)"
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echo "✅ pandoc $("$BIN_PATH" -v | head -n1) would be installed successfully"
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else
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sudo install -m755 "$BIN_PATH" "${INSTALL_DIR}/pandoc"
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echo "✅ pandoc $(pandoc -v | head -n1) installed in ${INSTALL_DIR}"
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fi
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