gb (golden boy) is a command line tool that aides in the download of media such as images, videos, and audio files. there are essentially three services that it provides, the ability to crawl a site for links, the ability to download sets of images from those links, and the ability to convert sets of jpg images into a pdf file.

since every site does things differently in terms of organizing content, this is supposed to be a generic tool that allows for a high degree of customization.

• golang 1.17.x+
• https://github.com/PuerkitoBio/goquery (Excellent for parsing html pages)
• https://github.com/spf13/cobra (Industry standard for creating command line tools)

• tested on linux and windows, probably works fine on mac os x

• go build
• go install
• gb help

1. gb crawl [URL] -p chapters # crawls URL for chapters, stores list in .chapters file
   • by default all links are stored to .chapters in the current directory, this is a human readable file, you can make changes and remove entries, entries are separated by a newline
   • to comment out a line, use the pound sign (#) as the first character before the URL, lines that are commented out are ignored
   • use the -e flag to exclude URLs from being crawled, this should be a comma delimited list (no spaces or enclose comma delimited list in quotations to preserve spaces)
2. gb download -f .chapters # crawls and downloads previously defined links for image files
   • this actually creates directories based on the URL path and stores images respectively
3. gb generate [DIR] -s -o tmp
   • will use the provided directory path as the pdf filename, so you should use relative paths i.e. gb generate gundam -s -o d:\manga, do not use the following format: gb generate c:\Users\manga\gundam -s -o d:\manga
   • reads directory for sub-directories and generates pdf file from sub-directory images
   • -s walks sub-directories creating a pdf file per sub-directory, the default without -s will take the directory and combine jpg's into a single pdf file.
   • -o designates where to save the resultant pdf file