Ruby port of the JS ansispan library, with some enhancements.
Add to Gemfile and bundle
gem "ansispan"require "ansispan"
ansi_text = "* \e[33m8fb4737\e[m\e[33m (\e[m\e[1;36mHEAD -> \e[m\e[1;32mmaster\e[m\e[33m, \e[m\e[1;31morigin/master\e[m\e[33m, \e[m\e[1;31morigin/HEAD\e[m\e[33m)\e[m rails new\n"
Ansispan.convert(ansi_text)
# => * <span style="color: yellow">8fb4737</span><span style="color: yellow"> (</span><span style="font-weight: bold; color: cyan">HEAD -> </span><span style="font-weight: bold; color: green">master</span><span style="color: yellow">, </span><span style="font-weight: bold; color: red">origin/master</span><span style="color: yellow">, </span><span style="font-weight: bold; color: red">origin/HEAD</span><span style="color: yellow">)</span> rails newThe default escape character is \033 but you can pass your own to the convert method.
Ansispan.convert(ansi_text, escape_character: "\e")https://gist.github.com/Prakasaka/219fe5695beeb4d6311583e79933a009 (use \033 instead of \e) https://gist.github.com/Prakasaka/219fe5695beeb4d6311583e79933a009#gistcomment-3676483