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@ -32,7 +32,7 @@ trap 'rm -rf "$tmp_dir"' EXIT |
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# Generate the file list from the TARGET_CHROOT, excluding files and directories in the BUTANE_BLOCKLIST |
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declare -A files_to_include=() |
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filelist_file="$tmp_dir/filelist.txt" |
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inner_filelist_file="$tmp_dir/filelist.txt" |
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for path in $(find "$TARGET_CHROOT"); do |
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rel_path="${path#$TARGET_CHROOT}" |
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# Skip files & directories that are already part of the CoreOS default installation |
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@ -46,7 +46,7 @@ for path in $(find "$TARGET_CHROOT"); do |
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fi |
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# The leading / is removed from the relative path in order for tar to find the file. |
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echo "${rel_path#/}" >> "$filelist_file" |
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echo "${rel_path#/}" >> "$inner_filelist_file" |
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# Although, the absolute path is stored in the metadata file. |
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files_to_include["$rel_path"]="$(stat --format='%u %g %a %F' "$path")" |
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@ -54,27 +54,28 @@ done |
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# Generate metadata.json |
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metadata_file="$tmp_dir/metadata.yaml" |
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cat <<EOF > "$metadata_file" |
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exec 3>&1 > "$metadata_file" |
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cat <<EOF |
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name: $PROJECT_NAME |
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EOF |
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if [ -n "${ALL_DEPENDENCIES}" ]; then |
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echo "dependencies:" >> "$metadata_file" |
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echo "dependencies:" |
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for dep in ${ALL_DEPENDENCIES}; |
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do echo "- $dep" |
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done >> "$metadata_file" |
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done |
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else |
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echo "dependencies: []" >> "$metadata_file" |
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echo "dependencies: []" |
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fi |
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if [ -n "${DIRECT_DEPENDENCIES}" ]; then |
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echo "direct_dependencies:" >> "$metadata_file" |
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echo "direct_dependencies:" |
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for dep in ${DIRECT_DEPENDENCIES}; |
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do echo "- $dep" |
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done >> "$metadata_file" |
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done |
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else |
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echo "direct_dependencies: []" >> "$metadata_file" |
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echo "direct_dependencies: []" |
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fi |
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if [ "${#files_to_include[@]}" -gt 0 ]; then |
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echo "files:" >> "$metadata_file" |
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echo "files:" |
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for file in "${!files_to_include[@]}"; do |
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read -r owner group mode type <<< "${files_to_include[$file]}" |
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if [ "$type" == "directory" ]; then |
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@ -82,7 +83,7 @@ if [ "${#files_to_include[@]}" -gt 0 ]; then |
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elif [ "$type" == "regular file" ]; then |
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type="file" |
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else |
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echo "Unsupported file type: $type for file $file" |
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echo "Unsupported file type: $type for file $file" >&2 |
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exit 1 |
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fi |
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cat <<EOY |
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@ -92,29 +93,57 @@ if [ "${#files_to_include[@]}" -gt 0 ]; then |
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mode: "0$mode" |
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type: $type |
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EOY |
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done >> "$metadata_file" |
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done |
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else |
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echo "files: []" >> "$metadata_file" |
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echo "files: []" |
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fi |
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if [ -n "${SYSTEMD_START_UNITS}" ]; then |
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echo "systemd_start_units:" >> "$metadata_file" |
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echo "systemd_start_units:" |
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for unit in ${SYSTEMD_START_UNITS}; do |
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echo "- $unit" |
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done >> "$metadata_file" |
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done |
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else |
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echo "systemd_start_units: []" >> "$metadata_file" |
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echo "systemd_start_units: []" |
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fi |
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if [ -n "${SYSTEMD_ENABLE_UNITS}" ]; then |
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echo "systemd_enable_units:" >> "$metadata_file" |
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echo "systemd_enable_units:" |
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for unit in ${SYSTEMD_ENABLE_UNITS}; do |
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echo "- $unit" |
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done >> "$metadata_file" |
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done |
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else |
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echo "systemd_enable_units: []" >> "$metadata_file" |
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echo "systemd_enable_units: []" |
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fi |
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if [ -n "${PROJECT_USER}" ]; then |
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read -r username uid gid home <<< "${PROJECT_USER}" |
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if [ "$uid" -ne 0 ] && [ "$gid" -ne 0 ]; then |
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echo "users:" |
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echo "- name: $username" |
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echo " uid: $uid" |
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echo " gid: $gid" |
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echo " home: $home" |
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else |
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echo "users: []" |
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fi |
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else |
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echo "users: []" |
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fi |
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# Restore stdout |
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exec 1>&3 |
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# The list of files to be included in the outer tarball. |
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declare -a outer_filelist=( |
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"metadata.json" |
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) |
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# Convert metadata.yaml to metadata.json |
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yq -o json "$metadata_file" > "$tmp_dir/metadata.json" |
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# Add the project's README file to the tarball if it exists. |
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if [ -f "README.md" ]; then |
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cp "README.md" "$tmp_dir/README.md" |
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outer_filelist+=("README.md") |
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fi |
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# Common tar options to ensure that the tarball is reproducible and does not contain unnecessary metadata |
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declare -a tar_options=( |
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"--no-selinux" |
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@ -124,7 +153,8 @@ declare -a tar_options=( |
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) |
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# Generate content.tar with the files to be included in the tarball, preserving their relative paths and permissions. |
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tar -cf "$tmp_dir/content.tar" "${tar_options[@]}" -C "$TARGET_CHROOT" --verbatim-files-from --files-from="$filelist_file" |
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tar -cf "$tmp_dir/content.tar" "${tar_options[@]}" -C "$TARGET_CHROOT" --verbatim-files-from --files-from="$inner_filelist_file" |
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outer_filelist+=("content.tar") |
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# Generate the final tarball. |
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tar -czf "$1" "${tar_options[@]}" -C "$tmp_dir" --owner=0 --group=0 metadata.json content.tar |
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tar -czf "$1" "${tar_options[@]}" -C "$tmp_dir" --owner=0 --group=0 "${outer_filelist[@]}" |
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