107 lines
2.9 KiB
Bash
Executable File
107 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# This is a helper for the makefile rule to build a particular image
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# from the preprocessed json manifest. It is a shellscript rather
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# than just some make lines because some of the complexities just
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# are painful to do in make.
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#
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# Features:
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#
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# * Knows what target to export based on the extensions.
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# * Knows what the exported filename based on the extensions.
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# * Supports building natively or in a VM via osbuildvm.
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# * Runs only the minimal required commands as root, and
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# chowns the resulting files to the user
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# * Supports exporting an extra ostree commit and pulling that
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# into an existing repo.
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set -e
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DEST="$1"
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JSON="$2"
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TARGET="$3"
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IMAGETYPE="$4"
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ARCH="$5"
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EXTENSION="$6"
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# Map extension => export pipeline name
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declare -A EXPORT_BY_EXT
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EXPORT_BY_EXT[img]=image
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EXPORT_BY_EXT[oci.tar]=container
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EXPORT_BY_EXT[qcow2]=qcow2
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EXPORT_BY_EXT[repo]=ostree-commit
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EXPORT_BY_EXT[rootfs]=rootfs
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EXPORT_BY_EXT[ext4]=ext4
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EXPORT_BY_EXT[tar]=tar
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# Map extension to name of exported file by pipeline
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declare -A EXPORT_FILE_BY_EXT
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EXPORT_FILE_BY_EXT[img]=disk.img
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EXPORT_FILE_BY_EXT[qcow2]=disk.qcow2
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EXPORT_FILE_BY_EXT[oci.tar]=container.tar
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EXPORT_FILE_BY_EXT[repo]=repo
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EXPORT_FILE_BY_EXT[rootfs]=
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EXPORT_FILE_BY_EXT[ext4]=rootfs.ext4
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EXPORT_FILE_BY_EXT[tar]=rootfs.tar
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EXPORT=${EXPORT_BY_EXT[${EXTENSION}]}
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EXPORT_FILE=${EXPORT_FILE_BY_EXT[${EXTENSION}]}
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HOST_ARCH=$(arch)
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CURRENT_UIDGID="$(id -u):$(id -g)"
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if [ $ARCH == $HOST_ARCH -a $VM == 0 ]; then
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SUDO="sudo"
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OSBUILD="sudo osbuild"
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else
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SUDO=
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OSBUILD="osbuildvm/osbuildvm --arch=$ARCH"
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fi
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EXPORT_ARGS="--export $EXPORT"
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CHECKPOINT_ARGS=
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for CP in $CHECKPOINTS; do
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CHECKPOINT_ARGS="${CHECKPOINT_ARGS} --checkpoint ${CP}"
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done
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CHOWNARGS=
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if [ $EXTENSION == repo ]; then
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CHOWNARGS=-R # Chown entire repo dir as it doesn't care about permissions
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fi
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EXPORTDIRS=$OUTPUTDIR/$EXPORT
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# If OSTREE_REPO is set, and we're building an image that has an
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# ostree commit, then we also export that commit to the repo specified
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# by OSTREE_REPO.
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ALSO_EXPORT_OSTREE=0
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if [ "$OSTREE_REPO" != "" -a "$IMAGETYPE" == "ostree" ]; then
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ALSO_EXPORT_OSTREE=1
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if [ $EXPORT != "ostree-commit" ]; then
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EXPORT_ARGS="$EXPORT_ARGS --export ostree-commit"
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EXPORTDIRS="$EXPORTDIRS $OUTPUTDIR/ostree-commit"
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fi
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# Ensure we have a repo to export to
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ostree init --repo=$OSTREE_REPO --mode archive
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fi
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set -x
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$SUDO rm -rf $EXPORTDIRS
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mkdir -p $EXPORTDIRS # Own export dirs by user, not root
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$OSBUILD $CHECKPOINT_ARGS --store $STOREDIR --output-directory $OUTPUTDIR $EXPORT_ARGS $OSBUILD_ARGS $JSON
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if [ $ALSO_EXPORT_OSTREE == "1" ]; then
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ostree pull-local --repo=$OSTREE_REPO $OUTPUTDIR/ostree-commit/repo
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fi
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# Extract and chown exported file
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rm -rf $DEST
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$SUDO chown $CHOWNARGS $CURRENT_UIDGID $OUTPUTDIR/$EXPORT/$EXPORT_FILE
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$SUDO mv $OUTPUTDIR/$EXPORT/$EXPORT_FILE $DEST
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$SUDO rm -rf $EXPORTDIRS
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