From a1f633fe27f64e36f916a5bd8a779b6936f14c12 Mon Sep 17 00:00:00 2001
From: Michael Davidsaver <mdavidsaver@gmail.com>
Date: Tue, 14 Nov 2017 13:15:25 -0600
Subject: [PATCH] add make-tar.sh

---
 .ci/make-tar.sh | 77 +++++++++++++++++++++++++++++++++++++++++++++++++
 .gitattributes  |  4 +++
 README          |  3 ++
 3 files changed, 84 insertions(+)
 create mode 100755 .ci/make-tar.sh
 create mode 100644 .gitattributes

diff --git a/.ci/make-tar.sh b/.ci/make-tar.sh
new file mode 100755
index 000000000..8fd438f08
--- /dev/null
+++ b/.ci/make-tar.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+#
+# Make tar for git repo w/ one level of sub modules.
+#
+set -e
+
+TOPREV="$1"
+FINALTAR="$2"
+PREFIX="$3"
+
+if ! [ "$TOPREV" ]
+then
+   cat <<EOF >&2
+usage: $0 [rev] [outfile.tar.gz] [prefix/]
+
+  "<rev>" may be any git revision spec. (tag, branch, or commit id).
+
+  Output file may be .tar.gz, .tar.bz2, or any extension supported by "tar -a".
+  If output file name is omitted, then "<rev>.tar.gz" is the default.
+  If prefix is omitted, then the default is "<rev>/".
+EOF
+   exit 1
+fi
+
+[ "$FINALTAR" ] || FINALTAR="$TOPREV.tar.gz"
+[ "PREFIX" ] || PREFIX="$TOPREV/"
+
+# temporary directory w/ automatic cleanup
+TDIR=`mktemp -d`
+trap 'rm -rf "$TDIR"' EXIT INT QUIT TERM
+
+mkdir "$TDIR"/tar
+
+echo "Export revision $TOPREV as $FINALTAR with prefix $PREFIX"
+
+# Use git-archive to copy files at the given revision into our temp. dir.
+# Respects 'export-exclude' in .gitattributes files.
+
+git archive --prefix=$PREFIX $TOPREV | tar -C "$TDIR"/tar -x
+
+# use ls-tree instead of submodule-foreach to capture submodule revision associated with supermodule rev.
+#
+# sub-modules appear in tree as eg.:
+#  160000 commit c3a6cfcf0dad4a4eeecf59b474710d06ff3eb68a  modules/ca
+git ls-tree -r $TOPREV | awk '/^[0-9]+ commit / {print $3, $4}' | \
+while read HASH MODDIR
+do
+    echo "visit $HASH $MODDIR"
+    (cd $MODDIR && git archive --prefix=${PREFIX}${MODDIR}/ $HASH) | tar -C "$TDIR"/tar -x
+done
+
+# make a list of files copied and filter out undesirables
+
+(cd "$TDIR"/tar && find .) > "$TDIR"/list.1
+
+sed \
+-e '/.*ci$/d' \
+-e '/.*ci\//d' \
+-e '/.*jenkins$/d' \
+-e '/.*jenkins\//d' \
+-e '/\.git/d' \
+-e '/\.project/d' \
+-e '/.*\.travis\.yml$/d' \
+-e '/.*\.appveyor\.yml$/d' \
+"$TDIR"/list.1 > "$TDIR"/list.2
+
+if ! diff -u "$TDIR"/list.1 "$TDIR"/list.2
+then
+  echo "Warning: prohibited files being ignored"
+fi
+
+# Use the filtered list to build the final tar
+#  The -a option chooses compression automatically based on output file name.
+
+tar -C "$TDIR"/tar --files-from="$TDIR"/list.2 -caf "$FINALTAR"
+
+echo "Wrote $FINALTAR"
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..0b4614c1f
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+.ci/          export-ignore
+.appveyor.yml export-ignore
+.travis.yml   export-ignore
+README        export-subst
diff --git a/README b/README
index dcf34b258..5985e79a5 100644
--- a/README
+++ b/README
@@ -22,3 +22,6 @@ training materials, additional components, links to other
 websites etc. is available on the EPICS home page at
 	http://www.aps.anl.gov/epics/
 
+$Format:%cD$
+$Format:%H$
+https://code.launchpad.net/epics-base