9bb10d27e7
The "git.rc" is used on Windows to embed information like the project name and version into the resulting executables. As such we need to inject the version information, which we do by using preprocessor defines. The logic to do so is non-trivial and needs to be kept in sync with the different build systems. Refactor the logic so that we generate "git.rc" via `GIT-VERSION-GEN`. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
83 lines
2.1 KiB
Bash
Executable File
83 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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DEF_VER=v2.47.GIT
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LF='
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'
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if test "$#" -ne 3
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then
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echo >&2 "USAGE: $0 <SOURCE_DIR> <INPUT> <OUTPUT>"
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exit 1
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fi
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SOURCE_DIR="$1"
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INPUT="$2"
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OUTPUT="$3"
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if ! test -f "$INPUT"
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then
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echo >&2 "Input is not a file: $INPUT"
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exit 1
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fi
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# Protect us from reading Git version information outside of the Git directory
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# in case it is not a repository itself, but embedded in an unrelated
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# repository.
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GIT_CEILING_DIRECTORIES="$SOURCE_DIR/.."
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export GIT_CEILING_DIRECTORIES
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# First see if there is a version file (included in release tarballs),
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# then try git-describe, then default.
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if test -f "$SOURCE_DIR"/version
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then
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VN=$(cat "$SOURCE_DIR"/version) || VN="$DEF_VER"
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elif {
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test -d "$SOURCE_DIR/.git" ||
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test -d "${GIT_DIR:-.git}" ||
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test -f "$SOURCE_DIR"/.git;
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} &&
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VN=$(git -C "$SOURCE_DIR" describe --match "v[0-9]*" HEAD 2>/dev/null) &&
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case "$VN" in
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*$LF*) (exit 1) ;;
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v[0-9]*)
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git -C "$SOURCE_DIR" update-index -q --refresh
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test -z "$(git -C "$SOURCE_DIR" diff-index --name-only HEAD --)" ||
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VN="$VN-dirty" ;;
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esac
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then
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VN=$(echo "$VN" | sed -e 's/-/./g');
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else
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VN="$DEF_VER"
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fi
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GIT_VERSION=$(expr "$VN" : v*'\(.*\)')
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GIT_BUILT_FROM_COMMIT=$(git -C "$SOURCE_DIR" rev-parse -q --verify HEAD 2>/dev/null)
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if test -z "$GIT_USER_AGENT"
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then
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GIT_USER_AGENT="git/$GIT_VERSION"
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fi
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# While released Git versions only have three numbers, development builds also
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# have a fourth number that corresponds to the number of patches since the last
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# release.
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read GIT_MAJOR_VERSION GIT_MINOR_VERSION GIT_MICRO_VERSION GIT_PATCH_LEVEL trailing <<EOF
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$(echo "$GIT_VERSION" 0 0 0 0 | tr '.a-zA-Z-' ' ')
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EOF
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sed -e "s|@GIT_VERSION@|$GIT_VERSION|" \
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-e "s|@GIT_MAJOR_VERSION@|$GIT_MAJOR_VERSION|" \
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-e "s|@GIT_MINOR_VERSION@|$GIT_MINOR_VERSION|" \
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-e "s|@GIT_MICRO_VERSION@|$GIT_MICRO_VERSION|" \
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-e "s|@GIT_PATCH_LEVEL@|$GIT_PATCH_LEVEL|" \
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-e "s|@GIT_BUILT_FROM_COMMIT@|$GIT_BUILT_FROM_COMMIT|" \
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-e "s|@GIT_USER_AGENT@|$GIT_USER_AGENT|" \
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"$INPUT" >"$OUTPUT"+
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if ! test -f "$OUTPUT" || ! cmp "$OUTPUT"+ "$OUTPUT" >/dev/null
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then
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mv "$OUTPUT"+ "$OUTPUT"
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else
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rm "$OUTPUT"+
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fi
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