add pgtk docker file

Author: yyoncho

README.md

@@ -1 +1 @@
-[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/yyoncho/lsp-gitpod2)
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/emacs-lsp/lsp-gitpod)

pgtk/Dockerfile

@@ -0,0 +1,18 @@
+FROM gitpod/workspace-full
+
+USER gitpod
+WORKDIR /home/gitpod
+
+RUN git clone https://github.com/emacs-mirror/emacs --depth 1 --branch feature/pgtk
+WORKDIR /home/gitpod/emacs/
+RUN sudo apt-get update && sudo apt-get install -y build-essential git autoconf texinfo libgnutls28-dev libxml2-dev libncurses5-dev libjansson-dev
+RUN sudo apt-get install libgtk-3-dev:amd64 -y
+RUN sudo apt-get install libgccjit-9-dev -y
+RUN ./autogen.sh
+RUN ./configure --with-pgtk --with-cairo --with-modules --with-native-compilation
+RUN make -j8
+
+WORKDIR /home/gitpod/
+
+RUN git clone https://github.com/yyoncho/elegant-emacs .emacs.d
+RUN sudo apt-get install fonts-roboto -y