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| author | Herbert Valerio Riedel <hvr@gnu.org> | 2014-11-27 10:50:51 +0100 |
|---|---|---|
| committer | Herbert Valerio Riedel <hvr@gnu.org> | 2014-11-27 21:59:02 +0100 |
| commit | 73e5e2f8bade2d8b2b1ecae958fe12d0b24591ef (patch) | |
| tree | db399728d04c46d1e6d08c20863c9c2263c889a8 /aclocal.m4 | |
| parent | 01f03cb30426fad1b848051fa142c04c8816a80c (diff) | |
| download | haskell-73e5e2f8bade2d8b2b1ecae958fe12d0b24591ef.tar.gz | |
Embed Git commit id into `ghc --info` output
Since we switched to a Git submodule based GHC Git repo, `ghc.git`'s
commit id uniquely identifies the state of the GHC source-tree. So
having that information embedded into the `ghc` executable provides
valuable information to track accurately (especially when created by
buildbots) from which source-tree-state a given `ghc` snapshot
(distribution) was generated.
So this commit adds a new field `"Project Git commit id"` to the
`ghc --info` meta-data containing the `./configure`-time Git commit id
as reported by `git rev-parse HEAD`.
This field can also be queried with `ghc --print-project-git-commit-id`.
For source distributions, the file `GIT_COMMIT_ID` is created (with some
sanity checking to detect stale commit ids, as that would render this
information rather useless)
Reviewed By: austin
Differential Revision: https://phabricator.haskell.org/D528
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index b41bf41559..2aa55d7d84 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -1581,11 +1581,29 @@ if test "$RELEASE" = "NO"; then dnl less likely to go wrong. PACKAGE_VERSION=${PACKAGE_VERSION}.`date +%Y%m%d` fi + + AC_MSG_CHECKING([for GHC Git commit id]) + if test -d .git; then + git_commit_id=`git rev-parse HEAD` + if test -n "$git_commit_id" 2>&1 >/dev/null; then true; else + AC_MSG_ERROR([failed to detect revision: check that git is in your path]) + fi + PACKAGE_GIT_COMMIT_ID=$git_commit_id + AC_MSG_RESULT(inferred $PACKAGE_GIT_COMMIT_ID) + elif test -f GIT_COMMIT_ID; then + PACKAGE_GIT_COMMIT_ID=`cat GIT_COMMIT_ID` + AC_MSG_RESULT(given $PACKAGE_GIT_COMMIT_ID) + else + AC_MSG_WARN([cannot determine snapshot revision: no .git directory and no 'GIT_COMMIT_ID' file]) + PACKAGE_GIT_COMMIT_ID="0000000000000000000000000000000000000000" + fi + fi # Some renamings AC_SUBST([ProjectName], [$PACKAGE_NAME]) AC_SUBST([ProjectVersion], [$PACKAGE_VERSION]) +AC_SUBST([ProjectGitCommitId], [$PACKAGE_GIT_COMMIT_ID]) # Split PACKAGE_VERSION into (possibly empty) parts VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/` |