51 lines
1.4 KiB
Bash
Executable file
51 lines
1.4 KiB
Bash
Executable file
#!/bin/sh
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if [ $# -gt 1 ]; then
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cd "$2"
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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: $0 <filename> <srcroot>"
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exit 1
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fi
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DESC=""
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SUFFIX=""
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LAST_COMMIT_DATE=""
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if [ -e "$(which git 2>/dev/null)" -a "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then
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# clean 'dirty' status of touched files that haven't been modified
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git diff >/dev/null 2>/dev/null
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# if latest commit is tagged and not dirty, then override using the tag name
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RAWDESC=$(git describe --abbrev=0 2>/dev/null)
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if [ "$(git rev-parse HEAD)" = "$(git rev-list -1 $RAWDESC)" ]; then
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git diff-index --quiet HEAD -- && DESC=$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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SUFFIX=$(git rev-parse --short HEAD)
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git diff-index --quiet HEAD -- || SUFFIX="$SUFFIX-dirty"
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# get a string like "2012-04-10 16:27:19 +0200"
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LAST_COMMIT_DATE="$(git log -n 1 --format="%ci")"
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fi
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if [ -n "$DESC" ]; then
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NEWINFO="#define BUILD_DESC \"$DESC\""
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elif [ -n "$SUFFIX" ]; then
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NEWINFO="#define BUILD_SUFFIX $SUFFIX"
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else
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NEWINFO="// No build information available"
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fi
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# only update build.h if necessary
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if [ "$INFO" != "$NEWINFO" ]; then
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echo "$NEWINFO" >"$FILE"
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if [ -n "$LAST_COMMIT_DATE" ]; then
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echo "#define BUILD_DATE \"$LAST_COMMIT_DATE\"" >> "$FILE"
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fi
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fi
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