added transfer.sh module (easy commandline file sharing)

modules/transfer/README.md

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+Transfer.sh
+==========
+
+Defines [transfer][https://transfer.sh/] aliases for easy file sharing from the commandline.
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][2].*
+
+  - [Remco Verhoef](https://github.com/dutchcoders)
+
+[1]: https://transfer.sh/
+[2]: https://github.com/dutchcoders/transfer.sh/

modules/transfer/init.zsh

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+#
+# Defines Transfer aliases and provides easy command line file sharing.
+#
+# Authors:
+#   Remco Verhoef <remco@dutchcoders.io>
+#
+
+# Return if requirements are not found.
+if (( ! $+commands[curl] )); then
+  return 1
+fi
+
+transfer() { if [ $# -eq 0 ]; then echo "No arguments specified. Usage:\necho transfer /tmp/test.md\ncat /tmp/test.md | transfer test.md"; return 1; fi
+tmpfile=$( mktemp -t transferXXX ); if tty -s; then basefile=$(basename "$1" | sed -e 's/[^a-zA-Z0-9._-]/-/g'); curl --progress-bar --upload-file "$1" "https://transfer.sh/$basefile" >> $tmpfile; else curl --progress-bar --upload-file "-" "https://transfer.sh/$1" >> $tmpfile; fi; cat $tmpfile; rm -f $tmpfile; }; alias transfer=transfer
+
+alias transfer=transfer
+