fix: slack message body

2026-06-07 07:55:16 +02:00 · 2025-11-21 20:52:52 +05:30 · 2025-11-21 20:52:52 +05:30 · cab288bb60
commit cab288bb60
parent 02becc7fff
2 changed files with 192 additions and 22 deletions
--- a/scripts/prepare-slack-message.sh
+++ b/scripts/prepare-slack-message.sh
@ -0,0 +1,168 @@
+#!/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 <title> <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"