feat: update fonts; add gnome-terminal, git-gui, gitk and their deskt…

…op icons (#145)

* update fonts and install gnome-terminal instead of xterm

* font and git-gui update

* add gitk and its desktop icon

docker/vnc/Dockerfile

@@ -17,7 +17,11 @@ RUN apt-get update \
         xfce4-settings \
         xorg \
         xubuntu-icon-theme \
-        xterm \
+        gnome-terminal \
+        ttf-dejavu \
+        git-gui \
+        gitk \
+        emacs \
     && apt-get autoremove --purge \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* \
@@ -44,6 +48,16 @@ ENV tigervnc_version=1.9.0
 
 RUN curl -sSfL https://bintray.com/tigervnc/stable/download_file?file_path=tigervnc-${tigervnc_version}.x86_64.tar.gz | tar -zxf - -C /usr/local --strip=2
 
+#################################################################
+# Add desktop icons
+
+COPY Git-GUI.desktop /home/jovyan/Desktop/
+RUN chmod +x /home/jovyan/Desktop/Git-GUI.desktop
+
+COPY gitk.desktop /home/jovyan/Desktop/
+COPY .git_icon.png /home/jovyan/Desktop/
+RUN chmod +x /home/jovyan/Desktop/gitk.desktop
+
 #################################################################
 # Install the jupyter extensions
 USER ${NB_USER}

docker/vnc/Git-GUI.desktop

@@ -0,0 +1,14 @@
+[Desktop Entry]
+Version=1.0
+Name=Git-GUI
+GenericName=Git-GUI
+X-GNOME-FullName=Git-GUI
+Comment=Graphical User Interface for Git
+Type=Application
+Categories=Git;Versioning;
+Exec=sh -c "cd /home/jovyan/work/${CI_PROJECT}; git gui"
+TryExec=git gui
+Terminal=false
+StartupNotify=false
+Icon=/usr/share/git-gui/lib/git-gui.ico
+StartupWMClass=Git-GUI-Main

docker/vnc/gitk.desktop

@@ -0,0 +1,13 @@
+[Desktop Entry]
+Version=2.31.1
+Name=gitk
+GenericName=gitk
+X-GNOME-FullName=gitk
+Comment=Graphical Visualization for Git
+Type=Application
+Categories=Git;Versioning;
+Exec=sh -c "cd /home/jovyan/work/${CI_PROJECT}; gitk"
+TryExec=gitk
+Terminal=false
+StartupNotify=false
+Icon=/home/jovyan/Desktop/.git_icon.png