d7379df8b8
When --offline is set elements should not revalidate cached data. The ubuntu element had not been updated to match this. SHA checking is also skipped as we only move a new cached file into place when the hash matches, and we might download a new hash before updating the image cache, which would cause persistent --offline failures. Change-Id: If1a0366b51951a73b7a3ffe23a29a3d910b08938
31 lines
1.0 KiB
Bash
Executable File
31 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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# These are useful, or at worst not harmful, for all images we build.
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set -eu
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[ -n "$ARCH" ]
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[ -n "$TARGET_ROOT" ]
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shopt -s extglob
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IMG_PATH=~/.cache/image-create
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DIB_CLOUD_IMAGES=${DIB_CLOUD_IMAGES:-http://cloud-images.ubuntu.com/}
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DIB_RELEASE=${DIB_RELEASE:-quantal}
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BASE_IMAGE_FILE=${BASE_IMAGE_FILE:-$DIB_RELEASE-server-cloudimg-$ARCH-root.tar.gz}
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SHA256SUMS=${SHA256SUMS:-https://${DIB_CLOUD_IMAGES##http?(s)://}/$DIB_RELEASE/current/SHA256SUMS}
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CACHED_FILE=$IMG_PATH/$BASE_IMAGE_FILE
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if [ -n "$DIB_OFFLINE" -a -f "$CACHED_FILE" ] ; then
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echo "Not checking freshness of cached $CACHED_FILE."
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else
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echo "Fetching Base Image"
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$TMP_HOOKS_PATH/bin/cache-url $SHA256SUMS $IMG_PATH/SHA256SUMS.ubuntu.$DIB_RELEASE.$ARCH
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$TMP_HOOKS_PATH/bin/cache-url $DIB_CLOUD_IMAGES/$DIB_RELEASE/current/$BASE_IMAGE_FILE $CACHED_FILE
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pushd $IMG_PATH
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grep "$BASE_IMAGE_FILE" SHA256SUMS.ubuntu.$DIB_RELEASE.$ARCH | sha256sum --check -
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popd
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fi
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# Extract the base image
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sudo tar -C $TARGET_ROOT -xzf $IMG_PATH/$BASE_IMAGE_FILE
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sudo rmdir $TARGET_ROOT/lost+found
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