pyinstaller build method

pyinstaller packages up all of a python script's dependencies and builds them
into standalone executables.  It can either do a directory (containing a
single executable and a bunch of shared libraries) or a self-contained
executable that effectively just contains a compressed version of the
directory.

The problem is, if you have several scripts like we do, you get several
large directories or standalone binaries, and there's a ton of duplication
between them.  Fortunately it looks like using the directory method and just
combining the directories works fine (for this project).

.gitignore

@@ -1,2 +1,7 @@
 .*.swp
-*.pyc
+*.pyc
+*.spec
+*.zip
+*.tar.gz
+dist/
+build/

Makefile

@@ -0,0 +1,17 @@
+EXTENSIONS:=embroider embroider_params embroider_simulate embroider_update
+VERSION:=$(shell git tag -l | grep ^v | tail -n 1)
+TARBALL:=inkstitch-$(VERSION)-$(shell uname)-$(shell uname -m).tar.gz
+
+dist: distclean
+	mkdir -p dist/inkstitch/bin
+	for extension in $(EXTENSIONS); do \
+		pyinstaller -p /usr/share/inkscape/extensions $${extension}.py; \
+		cp -a dist/$${extension}/* dist/inkstitch/bin; \
+		rm -rf dist/$${extension}; \
+        cp stub.py dist/$${extension}.py; \
+	done;
+	cp *.inx dist
+	cd dist; tar zcf ../$(TARBALL) *
+
+distclean:
+	rm -rf build dist *.spec *.tar.gz

stub.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+
+import sys
+import os
+
+# ink/stitch
+#
+# stub.py: pyinstaller execution stub
+#
+# pyinstaller packages the inkstitch extensions into nice tidy executables.
+# That's great, but Inkscape can't execute a plain binary as an extension(!).
+#
+# This Python script exists only to execute the actual extension binary.  It
+# can be copied to, e.g., "embroider_params.py", in which case it will look
+# for a binary at inkstitch/bin/embroider_params.
+
+script_name = os.path.basename(__file__)
+
+if script_name.endswith('.py'):
+    binary_name = script_name[:-3]
+else:
+    # Probably not right, but we can at least try.
+    binary_name = script_name
+
+binary_path = os.path.join("inkstitch", "bin", binary_name)
+
+args = sys.argv[:]
+args[0] = binary_path
+
+os.execv(binary_path, args)