project: imported pycopy.sh from sbpython2.

1 files changed, 41 insertions, 0 deletions

diff --git a/project/pycopy.sh b/project/pycopy.sh
new file mode 100755
index 0000000..2a55b7a
--- /dev/null
+++ b/project/pycopy.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# pyccopy:   a build-time utiltiy script
+# objective: copy one or more source python (.py) scripts
+#            to the destination directory specified via the
+#            environment variable PYCOPY_DSTDIR, replacing
+#            the original shebang line, should the script
+#            contain one, with a program interpreter based
+#            on the PYCOPY_PREFIX and PYCOPY_PYTHON
+#            environment variables.
+
+if [ -z "$PYCOPY_PYTHON" ]; then
+	python='python'
+else
+	python="$PYCOPY_PYTHON"
+fi
+
+if [ -z "$PYCOPY_PREFIX" ]; then
+	prefix='/usr'
+else
+	prefix="$PYCOPY_PREFIX"
+fi
+
+if [ -z "$PYCOPY_DSTDIR" ]; then
+	dstdir='.'
+else
+	dstdir="$PYCOPY_DSTDIR"
+fi
+
+for pysrc in $@; do
+	basename=$(basename "$pysrc");
+
+	sed -e '1s@^#!.*@#!'" $prefix/bin/$python"'@g'   \
+		"$pysrc" > "$dstdir/$basename"          || exit 2
+
+	if [ "$(head -n1 "$dstdir/$basename")" = "#! $prefix/bin/$python" ]; then
+		chmod +x "$dstdir/$basename"            || exit 2
+	fi
+done
+
+exit 0