feat: incremental merge of share-filter branch changes (#3879)

Author: ScriptedAlchemy

strip-coauthor.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Strip Co-authored-by lines from commits authored by current user on current branch
+# Excludes merge commits and commits from other authors
+
+set -e
+
+# Get current branch and user info
+CURRENT_BRANCH=$(git branch --show-current)
+USER_NAME=$(git config user.name)
+USER_EMAIL=$(git config user.email)
+
+echo "Current branch: $CURRENT_BRANCH"
+echo "User: $USER_NAME <$USER_EMAIL>"
+echo ""
+
+# Get commits by current user on current branch (excluding merges)
+COMMITS=$(git log --format="%H" --author="$USER_NAME" --no-merges $CURRENT_BRANCH ^main)
+
+if [ -z "$COMMITS" ]; then
+    echo "No commits by $USER_NAME found on branch $CURRENT_BRANCH"
+    exit 0
+fi
+
+echo "Found commits by $USER_NAME on $CURRENT_BRANCH:"
+git log --oneline --author="$USER_NAME" --no-merges $CURRENT_BRANCH ^main
+echo ""
+
+# Check if any commits have Co-authored-by lines
+HAS_COAUTHOR=false
+for commit in $COMMITS; do
+    if git show --format="%B" -s "$commit" | grep -q "^Co-authored-by:"; then
+        HAS_COAUTHOR=true
+        break
+    fi
+done
+
+if [ "$HAS_COAUTHOR" = false ]; then
+    echo "No Co-authored-by lines found in your commits on this branch."
+    exit 0
+fi
+
+echo "Found Co-authored-by lines in some commits. Proceeding with cleanup..."
+echo ""
+
+# Create a backup branch
+BACKUP_BRANCH="${CURRENT_BRANCH}-backup-$(date +%s)"
+git branch "$BACKUP_BRANCH"
+echo "Created backup branch: $BACKUP_BRANCH"
+echo ""
+
+# Process commits in reverse order (oldest first)
+COMMITS_REVERSE=$(echo "$COMMITS" | tac)
+
+for commit in $COMMITS_REVERSE; do
+    # Get the commit message
+    COMMIT_MSG=$(git show --format="%B" -s "$commit")
+    
+    # Check if this commit has Co-authored-by lines
+    if echo "$COMMIT_MSG" | grep -q "^Co-authored-by:"; then
+        echo "Processing commit: $(git show --format="%h %s" -s "$commit")"
+        
+        # Remove Co-authored-by lines from commit message
+        CLEAN_MSG=$(echo "$COMMIT_MSG" | grep -v "^Co-authored-by:" | sed '/^$/N;/^\n$/d')
+        
+        # Amend the commit with clean message
+        git commit --amend --no-edit --message="$CLEAN_MSG" --quiet
+        
+        echo "  ✓ Removed Co-authored-by lines"
+    fi
+done
+
+echo ""
+echo "✅ Successfully stripped Co-authored-by lines from your commits on $CURRENT_BRANCH"
+echo "📦 Backup created at: $BACKUP_BRANCH"
+echo ""
+echo "To restore if needed: git reset --hard $BACKUP_BRANCH"
+echo "To delete backup: git branch -D $BACKUP_BRANCH"