mirror of
https://github.com/git/git.git
synced 2026-01-09 17:46:37 +00:00
0c8d339514
We set up a couple of preprocessor macros when compiling Git that propagate the version that Git was built from to `git version` et al. The way this is set up makes it harder than necessary to reuse the infrastructure across the different build systems. Refactor this such that we generate a "version-def.h" header via `GIT-VERSION-GEN` instead. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
79 lines
1.8 KiB
Bash
Executable File
79 lines
1.8 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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read GIT_MAJOR_VERSION GIT_MINOR_VERSION GIT_MICRO_VERSION trailing <<EOF
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$(echo "$GIT_VERSION" 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_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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