initial commit

.ci/travis/make_all.sh

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+#!/bin/bash
+set -e # exit with nonzero exit code if anything fails
+
+array=(`find . -name 'Makefile'`)
+for mkfile in "${array[@]}"
+do :
+    make -C `dirname $mkfile`
+done

.ci/travis/zip_pdfs.sh

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+# A lecture pdf filename starts with two digits (e.g. 00*.pdf)
+# Get the path to each lecture pdf
+FILES=`find . -maxdepth 3 -name tutorial_[[:digit:]][[:digit:]]_*.pdf -not -name *comms*.pdf`
+# zip them into a file
+zip -j tutorial_pdfs.zip $FILES
+FILES=`find . -maxdepth 3 -name tutorial_[[:digit:]][[:digit:]]_*.slides.pdf -not -name *comms*.pdf`
+# zip them into a file
+zip -j tutorial_slides.zip $FILES
+FILES=`find . -maxdepth 3 -name tutorial_[[:digit:]][[:digit:]]_*.notes.pdf -not -name *comms*.pdf`
+# zip them into a file
+zip -j tutorial_notes.zip $FILES