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#!/bin/sh
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9c70b6 |
set -eu
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9c70b6 |
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usage()
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{
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cat << EOF >&2
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Usage:
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-h show this HELP message
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-s SRCDIR set source directory
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-o OUTPUT set output header
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-p PREFIX set macro prefix
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EOF
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exit 1
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}
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# one
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workdir=$(pwd)
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srcdir=
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output=
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prefix=
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while getopts "hs:o:p:" opt; do
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case $opt in
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h)
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usage
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s)
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srcdir="$OPTARG"
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o)
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output="$OPTARG"
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p)
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prefix="$OPTARG"
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\?)
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printf "Invalid option: -%s" "$OPTARG" >&2
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usage
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esac
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done
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# two
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if [ -z "$srcdir" ] || [ -z "$output" ] || [ -z "$prefix" ]; then
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usage
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fi
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cd "$srcdir"
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gitver=$(git rev-parse --verify HEAD 2>/dev/null) || gitver="unknown"
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cvdate=$(git show -s --format=%ci $gitver 2>/dev/null) || cvdate=$(date)
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vmacro=$(printf '%s' "$prefix"'_GIT_VERSION' | tr '[:lower:]' '[:upper:]')
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dmacro=$(printf '%s' "$prefix"'_GIT_DATE ' | tr '[:lower:]' '[:upper:]')
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b2e22c |
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cd "$workdir"
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5196e0 |
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# three
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printf '#define %s "%s"\n#define %s "%s"\n' \
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"$vmacro" "$gitver" \
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"$dmacro" "$cvdate" \
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> "$output"
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# all done
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exit 0
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