git_search - Search for a term in git history and return related GitHub PRs or commit links

git_search.sh

#!/bin/bash

# Search for a term in git history and return related GitHub PRs or commit links
# Usage: git_search [-r] <search_string>
#   -r: use regex pattern matching instead of exact string matching
#
# Examples:
#   git_search "someFunction"
#   git_search -r ".*Pattern.*"
function git_search() {
    if [ -z "$1" ]; then
        echo "Usage: git_search [-r] <search_string>"
        echo "  -r: use regex pattern matching"
        return 1
    fi

    local use_regex=0
    local search_term=""

    # Parse arguments
    while [[ $# -gt 0 ]]; do
        case $1 in
            -r)
                use_regex=1
                shift
                ;;
            *)
                search_term="$1"
                shift
                ;;
        esac
    done

    if [ -z "$search_term" ]; then
        echo "Error: No search term provided"
        return 1
    fi

    echo "🔍 Finding changes for: $search_term"
    echo "----------------------------------------"

    # Get all matching commits
    if [ $use_regex -eq 1 ]; then
        # Use -G for regex search
        commit_hashes=$(git log -G "$search_term" --pretty=format:"%H" --max-count=10)
    else
        # Use -S for exact string search
        commit_hashes=$(git log -S "$search_term" --pretty=format:"%H" --max-count=10)
    fi

    if [ -z "$commit_hashes" ]; then
        echo "❌ No commits found containing: $search_term"
        return 1
    fi

    repo_url=$(gh repo view --json url -q .url)
    # For each commit hash
    echo "$commit_hashes" | while read -r commit_hash; do
        echo "\n📦 Commit: $commit_hash"
        echo "----------------------------------------"

        # Try to find associated PR using GitHub's search syntax
        pr_info=$(gh search prs --json number,title,url,state --jq '.[0]' "$commit_hash")

        if [ -n "$pr_info" ] && [ "$pr_info" != "null" ]; then
            echo "🔗 Pull Request:"
            echo "$pr_info" | jq -r '"\(.title)\n\(.url) (\(.state))"'
        else
            # If no PR found, get the commit URL
            echo "🔗 Direct commit link (no PR found):"
            echo "$repo_url/commit/$commit_hash"

            # Show commit details
            git log -1 --pretty=format:"Author: %an%nDate: %ad%nMessage: %s" $commit_hash
        fi

        echo "----------------------------------------"
    done
}

# Aliases for git_search - exact string search and regex search
alias g_search='git_search'
alias g_grep='git_search -r'