<body> <url>" >&2 exit 1 fi log_debug "Title length: ${#TITLE}" log_debug "Body length: ${#BODY}" log_debug "URL: $URL" # Function to escape JSON strings escape_json() { # Use python for reliable JSON escaping python3 -c " import json import sys text = sys.stdin.read().rstrip('\n\r') # Remove trailing newline and carriage return from stdin print(json.dumps(text)[1:-1], end='') # Remove outer quotes " <<< "$1" } # Function to convert GitHub markdown to Slack mrkdwn format convert_to_slack_format() { local text="$1" log_debug "Starting markdown conversion" # First remove all carriage returns to prevent formatting issues log_debug "Removing carriage returns" text=$(echo "$text" | tr -d '\r') # Convert headers (## Header -> *Header*) log_debug "Converting headers" text=$(echo "$text" | sed -E 's/^#{1,6}[[:space:]]+(.+)$/*\1*/g') # Handle code blocks carefully - leave them as triple backticks log_debug "Preserving code blocks" # Convert inline code (`code` -> `code`) log_debug "Converting inline code" text=$(echo "$text" | sed -E 's/`([^`\n]+)`/`\1`/g') # Convert HTML breaks to newlines log_debug "Converting HTML breaks" text=$(echo "$text" | sed -E 's/<br[[:space:]]*\/?>/\n/gi') # Convert markdown links [text](url) to Slack format <url|text> log_debug "Converting markdown links" text=$(echo "$text" | sed -E 's/\[([^]]+)\]$([^)]+)$/<\2|\1>/g') # Convert bold text to Slack format log_debug "Converting bold text" text=$(echo "$text" | sed -E 's/\*\*([^*]+)\*\*/*\1*/g') # Clean up excessive newlines log_debug "Cleaning up newlines" text=$(echo "$text" | sed -E 's/\n\n\n+/\n\n/g') log_debug "Markdown conversion completed" echo "$text" } # Convert body to Slack format log_debug "Converting body to Slack format" SLACK_BODY=$(convert_to_slack_format "$BODY") log_debug "Slack body length after conversion: ${#SLACK_BODY}" # Truncate if too long (Slack limit) MAX_LENGTH=2500 if [ ${#SLACK_BODY} -gt $MAX_LENGTH ]; then log_debug "Truncating body from ${#SLACK_BODY} to $MAX_LENGTH characters" SLACK_BODY="${SLACK_BODY:0:$MAX_LENGTH}...\n\n_View full announcement on GitHub_" fi # Escape JSON strings log_debug "Escaping JSON strings" TITLE_ESCAPED=$(escape_json "$TITLE") SLACK_BODY_ESCAPED=$(escape_json "$SLACK_BODY") URL_ESCAPED=$(escape_json "$URL") log_debug "Title escaped length: ${#TITLE_ESCAPED}" log_debug "Slack body escaped length: ${#SLACK_BODY_ESCAPED}" # Create Slack payload JSON log_debug "Creating Slack payload JSON" PAYLOAD=$(cat <<EOF { "text": "New Announcement: $TITLE_ESCAPED", "blocks": [ { "type": "header", "text": { "type": "plain_text", "text": "📢 New Announcement", "emoji": true } }, { "type": "section", "text": { "type": "mrkdwn", "text": "*$TITLE_ESCAPED*" } }, { "type": "divider" }, { "type": "section", "text": { "type": "mrkdwn", "text": "$SLACK_BODY_ESCAPED" } }, { "type": "divider" }, { "type": "section", "text": { "type": "mrkdwn", "text": "<$URL_ESCAPED|View full discussion on GitHub>" } } ] } EOF ) log_debug "Payload created successfully, length: ${#PAYLOAD}" # Validate JSON syntax if echo "$PAYLOAD" | jq empty 2>/dev/null; then log_debug "JSON payload is valid" else log_debug "WARNING: JSON payload may be invalid" fi # Always output to stdout - let the YAML workflow handle GITHUB_OUTPUT log_debug "Outputting payload to stdout" log_debug "Payload first 100 chars: ${PAYLOAD:0:100}..." echo "$PAYLOAD" log

#!/bin/bash set -e # Exit on any error # Debug logging function log_debug() { echo "[DEBUG] $1" >&2 } log_debug "Script started with arguments count: $#" # Get discussion data from environment variables or command line arguments if [ -n "$DISCUSSION_TITLE" ] && [ -n "$DISCUSSION_BODY" ] && [ -n "$DISCUSSION_URL" ]; then # Use environment variables (preferred for GitHub Actions) TITLE="$DISCUSSION_TITLE" BODY="$DISCUSSION_BODY" URL="$DISCUSSION_URL" log_debug "Using environment variables" else # Fall back to command line arguments TITLE="$1" BODY="$2" URL="$3" log_debug "Using command line arguments" fi if [ -z "$TITLE" ] || [ -z "$BODY" ] || [ -z "$URL" ]; then log_debug "Missing required data" echo "Usage: Set DISCUSSION_TITLE, DISCUSSION_BODY, DISCUSSION_URL env vars or pass as args: $0 <body> <url>" >&2 exit 1 fi log_debug "Title length: ${#TITLE}" log_debug "Body length: ${#BODY}" log_debug "URL: $URL" # Function to escape JSON strings escape_json() { # Use python for reliable JSON escaping python3 -c " import json import sys text = sys.stdin.read().rstrip('\n\r') # Remove trailing newline and carriage return from stdin print(json.dumps(text)[1:-1], end='') # Remove outer quotes " <<< "$1" } # Function to convert GitHub markdown to Slack mrkdwn format convert_to_slack_format() { local text="$1" log_debug "Starting markdown conversion" # First remove all carriage returns to prevent formatting issues log_debug "Removing carriage returns" text=$(echo "$text" | tr -d '\r') # Convert headers (## Header -> *Header*) log_debug "Converting headers" text=$(echo "$text" | sed -E 's/^#{1,6}[[:space:]]+(.+)$/*\1*/g') # Handle code blocks carefully - leave them as triple backticks log_debug "Preserving code blocks" # Convert inline code (`code` -> `code`) log_debug "Converting inline code" text=$(echo "$text" | sed -E 's/`([^`\n]+)`/`\1`/g') # Convert HTML breaks to newlines log_debug "Converting HTML breaks" text=$(echo "$text" | sed -E 's/<br[[:space:]]*\/?>/\n/gi') # Convert markdown links [text](url) to Slack format <url|text> log_debug "Converting markdown links" text=$(echo "$text" | sed -E 's/\[([^]]+)\]$([^)]+)$/<\2|\1>/g') # Convert bold text to Slack format log_debug "Converting bold text" text=$(echo "$text" | sed -E 's/\*\*([^*]+)\*\*/*\1*/g') # Clean up excessive newlines log_debug "Cleaning up newlines" text=$(echo "$text" | sed -E 's/\n\n\n+/\n\n/g') log_debug "Markdown conversion completed" echo "$text" } # Convert body to Slack format log_debug "Converting body to Slack format" SLACK_BODY=$(convert_to_slack_format "$BODY") log_debug "Slack body length after conversion: ${#SLACK_BODY}" # Truncate if too long (Slack limit) MAX_LENGTH=2500 if [ ${#SLACK_BODY} -gt $MAX_LENGTH ]; then log_debug "Truncating body from ${#SLACK_BODY} to $MAX_LENGTH characters" SLACK_BODY="${SLACK_BODY:0:$MAX_LENGTH}...\n\n_View full announcement on GitHub_" fi # Escape JSON strings log_debug "Escaping JSON strings" TITLE_ESCAPED=$(escape_json "$TITLE") SLACK_BODY_ESCAPED=$(escape_json "$SLACK_BODY") URL_ESCAPED=$(escape_json "$URL") log_debug "Title escaped length: ${#TITLE_ESCAPED}" log_debug "Slack body escaped length: ${#SLACK_BODY_ESCAPED}" # Create Slack payload JSON log_debug "Creating Slack payload JSON" PAYLOAD=$(cat <<EOF { "text": "New Announcement: $TITLE_ESCAPED", "blocks": [ { "type": "header", "text": { "type": "plain_text", "text": "📢 New Announcement", "emoji": true } }, { "type": "section", "text": { "type": "mrkdwn", "text": "*$TITLE_ESCAPED*" } }, { "type": "divider" }, { "type": "section", "text": { "type": "mrkdwn", "text": "$SLACK_BODY_ESCAPED" } }, { "type": "divider" }, { "type": "section", "text": { "type": "mrkdwn", "text": "<$URL_ESCAPED|View full discussion on GitHub>" } } ] } EOF ) log_debug "Payload created successfully, length: ${#PAYLOAD}" # Validate JSON syntax if echo "$PAYLOAD" | jq empty 2>/dev/null; then log_debug "JSON payload is valid" else log_debug "WARNING: JSON payload may be invalid" fi # Always output to stdout - let the YAML workflow handle GITHUB_OUTPUT log_debug "Outputting payload to stdout" log_debug "Payload first 100 chars: ${PAYLOAD:0:100}..." echo "$PAYLOAD" log_debug "Script completed successfully"