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-rwxr-xr-xproject/pycopy.sh41
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