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50 lines
1.5 KiB
50 lines
1.5 KiB
#!/bin/sh
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# Copyright (c) 2012-2021 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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export LC_ALL=C
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if [ $# -gt 1 ]; then
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cd "$2" || exit 1
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fi
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if [ $# -gt 0 ]; then
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FILE="$1"
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shift
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if [ -f "$FILE" ]; then
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INFO="$(head -n 1 "$FILE")"
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fi
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else
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echo "Usage: $0 <filename> <srcroot>"
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exit 1
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fi
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GIT_TAG=""
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GIT_COMMIT=""
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if [ "${BITCOIN_GENBUILD_NO_GIT}" != "1" ] && [ -e "$(command -v git)" ] && [ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then
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# clean 'dirty' status of touched files that haven't been modified
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git diff >/dev/null 2>/dev/null
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# if latest commit is tagged and not dirty, then override using the tag name
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RAWDESC=$(git describe --abbrev=0 2>/dev/null)
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if [ "$(git rev-parse HEAD)" = "$(git rev-list -1 "$RAWDESC" 2>/dev/null)" ]; then
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git diff-index --quiet HEAD -- && GIT_TAG=$RAWDESC
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fi
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# otherwise generate suffix from git, i.e. string like "59887e8-dirty"
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GIT_COMMIT=$(git rev-parse --short=12 HEAD)
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git diff-index --quiet HEAD -- || GIT_COMMIT="$GIT_COMMIT-dirty"
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fi
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if [ -n "$GIT_TAG" ]; then
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NEWINFO="#define BUILD_GIT_TAG \"$GIT_TAG\""
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elif [ -n "$GIT_COMMIT" ]; then
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NEWINFO="#define BUILD_GIT_COMMIT \"$GIT_COMMIT\""
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else
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NEWINFO="// No build information available"
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fi
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# only update build.h if necessary
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if [ "$INFO" != "$NEWINFO" ]; then
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echo "$NEWINFO" >"$FILE"
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fi
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