mirror of
https://github.com/bitcoin/bitcoin.git
synced 2024-11-20 10:38:42 +01:00
264 lines
7.1 KiB
Bash
Executable File
264 lines
7.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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export LC_ALL=C
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set -e -o pipefail
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# Source the common prelude, which:
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# 1. Checks if we're at the top directory of the Bitcoin Core repository
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# 2. Defines a few common functions and variables
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#
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# shellcheck source=libexec/prelude.bash
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source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
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###################
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## Sanity Checks ##
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###################
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################
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# Required non-builtin commands should be invokable
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################
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check_tools cat env basename mkdir diff sort
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if [ -z "$NO_SIGN" ]; then
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# make it possible to override the gpg binary
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GPG=${GPG:-gpg}
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# $GPG can contain extra arguments passed to the binary
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# so let's check only the existence of arg[0]
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# shellcheck disable=SC2206
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GPG_ARRAY=($GPG)
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check_tools "${GPG_ARRAY[0]}"
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fi
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################
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# Required env vars should be non-empty
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################
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cmd_usage() {
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cat <<EOF
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Synopsis:
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env GUIX_SIGS_REPO=<path/to/guix.sigs> \\
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SIGNER=GPG_KEY_NAME[=SIGNER_NAME] \\
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[ NO_SIGN=1 ]
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./contrib/guix/guix-attest
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Example w/o overriding signing name:
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env GUIX_SIGS_REPO=/home/achow101/guix.sigs \\
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SIGNER=achow101 \\
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./contrib/guix/guix-attest
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Example overriding signing name:
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env GUIX_SIGS_REPO=/home/dongcarl/guix.sigs \\
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SIGNER=0x96AB007F1A7ED999=dongcarl \\
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./contrib/guix/guix-attest
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Example w/o signing, just creating SHA256SUMS:
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env GUIX_SIGS_REPO=/home/achow101/guix.sigs \\
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SIGNER=achow101 \\
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NO_SIGN=1 \\
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./contrib/guix/guix-attest
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EOF
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}
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if [ -z "$GUIX_SIGS_REPO" ] || [ -z "$SIGNER" ]; then
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cmd_usage
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exit 1
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fi
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################
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# GUIX_SIGS_REPO should exist as a directory
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################
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if [ ! -d "$GUIX_SIGS_REPO" ]; then
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cat << EOF
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ERR: The specified GUIX_SIGS_REPO is not an existent directory:
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'$GUIX_SIGS_REPO'
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Hint: Please clone the guix.sigs repository and point to it with the
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GUIX_SIGS_REPO environment variable.
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EOF
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cmd_usage
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exit 1
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fi
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################
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# The key specified in SIGNER should be usable
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################
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IFS='=' read -r gpg_key_name signer_name <<< "$SIGNER"
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if [ -z "${signer_name}" ]; then
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signer_name="$gpg_key_name"
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fi
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if [ -z "$NO_SIGN" ] && ! ${GPG} --dry-run --list-secret-keys "${gpg_key_name}" >/dev/null 2>&1; then
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echo "ERR: GPG can't seem to find any key named '${gpg_key_name}'"
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exit 1
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fi
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################
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# We should be able to find at least one output
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################
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echo "Looking for build output SHA256SUMS fragments in ${OUTDIR_BASE}"
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shopt -s nullglob
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sha256sum_fragments=( "$OUTDIR_BASE"/*/SHA256SUMS.part ) # This expands to an array of directories...
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shopt -u nullglob
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noncodesigned_fragments=()
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codesigned_fragments=()
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if (( ${#sha256sum_fragments[@]} )); then
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echo "Found build output SHA256SUMS fragments:"
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for outdir in "${sha256sum_fragments[@]}"; do
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echo " '$outdir'"
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case "$outdir" in
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"$OUTDIR_BASE"/*-codesigned/SHA256SUMS.part)
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codesigned_fragments+=("$outdir")
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;;
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*)
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noncodesigned_fragments+=("$outdir")
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;;
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esac
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done
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echo
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else
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echo "ERR: Could not find any build output SHA256SUMS fragments in ${OUTDIR_BASE}"
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exit 1
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fi
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##############
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## Attest ##
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##############
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# Usage: out_name $outdir
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#
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# HOST: The output directory being attested
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#
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out_name() {
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basename "$(dirname "$1")"
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}
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shasum_already_exists() {
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cat <<EOF
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--
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ERR: An ${1} file already exists for '${VERSION}' and attests
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differently. You likely previously attested to a partial build (e.g. one
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where you specified the HOST environment variable).
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See the diff above for more context.
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Hint: You may wish to remove the existing attestations and their signatures by
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invoking:
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rm '${PWD}/${1}'{,.asc}
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Then try running this script again.
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EOF
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}
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echo "Attesting to build outputs for version: '${VERSION}'"
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echo ""
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# Given a SHA256SUMS file as stdin that has lines like:
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# 0ba536819b221a91d3d42e978be016aac918f40984754d74058aa0c921cd3ea6 a/b/d/c/d/s/bitcoin-22.0rc2-riscv64-linux-gnu.tar.gz
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# ...
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#
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# Replace each line's file name with its basename:
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# 0ba536819b221a91d3d42e978be016aac918f40984754d74058aa0c921cd3ea6 bitcoin-22.0rc2-riscv64-linux-gnu.tar.gz
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# ...
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#
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basenameify_SHA256SUMS() {
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sed -E 's@(^[[:xdigit:]]{64}[[:space:]]+).+/([^/]+$)@\1\2@'
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}
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outsigdir="$GUIX_SIGS_REPO/$VERSION/$signer_name"
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mkdir -p "$outsigdir"
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(
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cd "$outsigdir"
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temp_noncodesigned="$(mktemp)"
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trap 'rm -rf -- "$temp_noncodesigned"' EXIT
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if (( ${#noncodesigned_fragments[@]} )); then
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cat "${noncodesigned_fragments[@]}" \
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| sort -u \
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| sort -k2 \
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| basenameify_SHA256SUMS \
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> "$temp_noncodesigned"
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if [ -e noncodesigned.SHA256SUMS ]; then
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# The SHA256SUMS already exists, make sure it's exactly what we
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# expect, error out if not
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if diff -u noncodesigned.SHA256SUMS "$temp_noncodesigned"; then
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echo "A noncodesigned.SHA256SUMS file already exists for '${VERSION}' and is up-to-date."
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else
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shasum_already_exists noncodesigned.SHA256SUMS
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exit 1
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fi
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else
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mv "$temp_noncodesigned" noncodesigned.SHA256SUMS
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fi
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else
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echo "ERR: No noncodesigned outputs found for '${VERSION}', exiting..."
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exit 1
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fi
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temp_all="$(mktemp)"
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trap 'rm -rf -- "$temp_all"' EXIT
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if (( ${#codesigned_fragments[@]} )); then
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# Note: all.SHA256SUMS attests to all of $sha256sum_fragments, but is
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# not needed if there are no $codesigned_fragments
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cat "${sha256sum_fragments[@]}" \
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| sort -u \
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| sort -k2 \
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| basenameify_SHA256SUMS \
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> "$temp_all"
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if [ -e all.SHA256SUMS ]; then
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# The SHA256SUMS already exists, make sure it's exactly what we
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# expect, error out if not
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if diff -u all.SHA256SUMS "$temp_all"; then
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echo "An all.SHA256SUMS file already exists for '${VERSION}' and is up-to-date."
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else
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shasum_already_exists all.SHA256SUMS
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exit 1
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fi
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else
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mv "$temp_all" all.SHA256SUMS
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fi
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else
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# It is fine to have the codesigned outputs be missing (perhaps the
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# detached codesigs have not been published yet), just print a log
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# message instead of erroring out
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echo "INFO: No codesigned outputs found for '${VERSION}', skipping..."
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fi
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if [ -z "$NO_SIGN" ]; then
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echo "Signing SHA256SUMS to produce SHA256SUMS.asc"
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for i in *.SHA256SUMS; do
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if [ ! -e "$i".asc ]; then
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${GPG} --detach-sign \
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--digest-algo sha256 \
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--local-user "$gpg_key_name" \
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--armor \
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--output "$i".asc "$i"
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else
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echo "Signature already there"
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fi
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done
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else
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echo "Not signing SHA256SUMS as \$NO_SIGN is not empty"
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fi
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echo ""
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)
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