Merge pull request #1 from rhatdan/source

Update to match upstream.

BuildSourceImage.sh

@@ -0,0 +1,71 @@
+#!/bin/sh
+
+# This script requires an OCI IMAGE Name to pull.
+# The script generates a SOURCE Image based on the OCI Image
+# Script must be executed on the same OS or newer as the image.
+IMAGE=$1
+SRC_RPM_DIR=SRCRPMS
+SRC_IMAGE=$1-src
+CONTEXT_DIR=$2
+EXTRA_SRC_DIR=$3
+IMAGE_CTR=$(buildah from ${IMAGE})
+IMAGE_MNT=$(buildah mount ${IMAGE_CTR})
+#
+# From the executable image, get the RELEASEVER of the image
+#
+RELEASE=$(rpm -q --queryformat "%{VERSION}\n" --root $IMAGE_MNT -f /etc/os-release)
+#
+# From the executable image, list the SRC RPMS used to build the image
+#
+SRC_RPMS=$(rpm -qa --root ${IMAGE_MNT} --queryformat '%{SOURCERPM}\n' | grep -v '^gpg-pubkey' | sort -u)
+buildah umount ${IMAGE_CTR}
+buildah rm ${IMAGE_CTR}
+
+#
+# For each SRC_RPMS used to build the executable image, download the SRC RPM
+# and generate a layer in the SRC RPM.
+#
+pushd ${SRC_RPM_DIR}
+export SRC_CTR=$(buildah from scratch)
+for i in ${SRC_RPMS}; do
+    if [ ! -f $i ]; then
+	RPM=$(echo $i | sed 's/.src.rpm$//g')
+	dnf download --release $RELEASE --source $RPM || continue
+    fi
+    echo "Adding $i"
+    touch --date='@0' $i
+    buildah add --add-history ${SRC_CTR} $i /RPMS
+    export IMG=$(buildah commit --rm ${SRC_CTR} $i)
+    export SRC_CTR=$(buildah from ${IMG})
+done
+popd
+#
+# If the caller specified a context directory,
+# add it to the CONTEXT DIR in SRC IMAGE
+#
+if [ ! -z "${CONTEXT_DIR}" ]; then
+    buildah add --add-history ${SRC_CTR} ${CONTEXT_DIR} /CONTEXT
+    export IMG=$(buildah commit --rm $SRC_CTR $1_$(echo $(CONTEXT_DIR) | sed 's|/|_|g'))
+    export SRC_CTR=$(buildah from ${IMG})
+fi
+
+#
+# If the caller specified a extra directory,
+# add it to the CONTEXT DIR in SRC IMAGE
+#
+if [ ! -z "${EXTRA_SRC_DIR}" ]; then
+    buildah add --add-history ${SRC_CTR} ${EXTRA_SRC_DIR} /EXTRA
+    export IMG=$(buildah commit --rm $EXTRA_SRC_CTR $1_$(echo $(CONTEXT_DIR) | sed 's|/|_|g'))
+    export SRC_CTR=$(buildah from ${IMG})
+fi
+
+# Cleanup and remove source container
+buildah rm ${SRC_CTR}
+
+#
+# Commit the SRC_CTR TO a SRC_IMAGE
+#
+buildah tag $IMG $SRC_IMAGE
+
+# Push SRC_IMAGE to Registry
+# buildah push $SRC_IMAGE REGISTRY_NAME/$SRC_IMAGE

README.md

@@ -1,2 +1,9 @@
 # BuildSourceImage
 Tool to build a source image based on an existing OCI image
+
+
+This script uses BUILDAH to build source code container images based on
+existing OCI images.
+
+The goal is to make retrieving the source code used to make a container image
+easier for users to obtain, using the standard OCI protocols and image formats.