INSTALL.md: Update with instructions for requirements.txt file

With the addition of the requirements.txt file
(fcdf87b57c090a1cfe3ac04a9c654b6d64723a75), the prior installation
instructions for Python packages is no longer needed. Instead, show how
to install these dependencies using the file and Pip.

Also update the corresponding uninstallation instructions. Reword the
instructions that relate to `installed-files.txt` since now it will
only contain a record from the TruFont `setup.py` installation.

1 files changed, 10 insertions, 66 deletions

diff --git a/INSTALL.md b/INSTALL.md
index 492c4de..c35437e 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -20,52 +20,9 @@ Install with homebrew,
 
     brew install pyqt5 ;
 
-### fontTools
+### Python dependencies
 
-Learn more: https://github.com/behdad/fonttools
-
-    git clone --depth=1 https://github.com/behdad/fonttools ;
-    cd fonttools/ ;
-    sudo python3 setup.py install --record installed-files.txt ;
-
-### RoboFab
-
-Learn more: http://www.robofab.com
-
-In particular, https://github.com/trufont/robofab/tree/python3-ufo3
-
-    cd .. ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/robofab ;
-    cd robofab ;
-    sudo python3 setup.py install --record installed-files.txt ;
-
-### defcon
-
-Homepage: https://readthedocs.org/projects/ts-defcon
-
-In particular, https://github.com/trufont/defcon/tree/python3-ufo3
-
-    cd .. ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/defcon ;
-    cd robofab ;
-    sudo python3 setup.py install --record installed-files.txt ;
-
-### ufo2fdk
-
-Learn more: https://github.com/typesupply/ufo2fdk
-
-In particular, https://github.com/trufont/ufo2fdk/tree/python3-ufo3
-
-    cd .. ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/ufo2fdk ;
-    cd ufo2fdk ;
-    sudo python3 setup.py install --record installed-files.txt ;
-
-### PyInstaller
-
-Homepage: http://www.pyinstaller.org
-
-    sudo pip install PyInstaller ;
+    sudo pip install -r requirements.txt
 
 ## Trufont
 
@@ -97,9 +54,10 @@ To build an installation package for Mac OS X 10.9, you must build the package o
 Files are installed into `/usr/local/lib/python3.5/site-packages/` 
 
     sudo easy_install pip ;
-    sudo pip uninstall robofab defcon defconQt ;
+    sudo pip uninstall -r requirements.txt
 
-To get rid of all remaining files (be careful with rm!) for each package installed above,
+If you installed TruFont with `setup.py`, it can be uninstalled with this command
+(be careful with rm!):
 
     cat installed-files.txt | xargs sudo rm --verbose -vr
 
@@ -110,22 +68,7 @@ To get rid of all remaining files (be careful with rm!) for each package install
 ## Dependencies
 
     sudo apt-get install -qq -y python3-pyqt5 python3-pyqt5.qtsvg python3-flake8 ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/defcon ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/robofab ;
-    git clone --depth=1 --branch=python3-ufo3 https://github.com/trufont/ufo2fdk ;
-    git clone --depth=1 https://github.com/behdad/fonttools.git ;
-
-    cd defcon ;
-    sudo python3.4 setup.py install --record installed-files.txt ;
-
-    cd ../robofab ;
-    sudo python3.4 setup.py install --record installed-files.txt ;
-
-    cd ../ufo2fdk ;
-    sudo python3.4 setup.py install --record installed-files.txt ;
-
-    cd ../fonttools ;
-    sudo python3.4 setup.py install --record installed-files.txt ;
+    sudo pip3 install -r requirements.txt
 
 ## Trufont
 
@@ -146,11 +89,12 @@ Or to then run from source,
 
 Files are installed into `/usr/local/lib/python3.4/dist-packages/`
 
-These can be partially removed with pip,
+These can be removed with pip:
 
     sudo apt-get install python3-pip ;
-    sudo pip3 uninstall robofab defcon ufo2fdk ufoLib defconQt ;
+    sudo pip3 uninstall -r requirements.txt
 
-To get rid of all remaining files (be careful with rm!) for each package installed above,
+If you installed TruFont with `setup.py`, it can be uninstalled with this command
+(be careful with rm!):
 
     cat installed-files.txt | xargs sudo rm --verbose -vr