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authorHerbert Valerio Riedel <hvr@gnu.org>2014-11-27 10:50:51 +0100
committerHerbert Valerio Riedel <hvr@gnu.org>2014-11-27 21:59:02 +0100
commit73e5e2f8bade2d8b2b1ecae958fe12d0b24591ef (patch)
treedb399728d04c46d1e6d08c20863c9c2263c889a8 /ghc.mk
parent01f03cb30426fad1b848051fa142c04c8816a80c (diff)
downloadhaskell-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 'ghc.mk')
-rw-r--r--ghc.mk18
1 files changed, 16 insertions, 2 deletions
diff --git a/ghc.mk b/ghc.mk
index a93628a567..c47104d2ab 100644
--- a/ghc.mk
+++ b/ghc.mk
@@ -1109,13 +1109,27 @@ SRC_DIST_GHC_DIRS = mk rules docs distrib bindisttest libffi includes \
SRC_DIST_GHC_FILES += \
configure.ac config.guess config.sub configure \
aclocal.m4 README ANNOUNCE HACKING LICENSE Makefile install-sh \
- settings.in VERSION \
+ settings.in VERSION GIT_COMMIT_ID \
boot packages ghc.mk
VERSION :
echo $(ProjectVersion) >VERSION
-sdist : VERSION
+.PHONY: GIT_COMMIT_ID
+GIT_COMMIT_ID:
+ @if test -d .git && test "`git rev-parse HEAD`" != "$(ProjectGitCommitId)"; then \
+ echo "******************************************************************************"; \
+ echo "Stale ProjectGitCommitId (=$(ProjectGitCommitId)) detected!"; \
+ echo "'git rev-parse HEAD' says: `git rev-parse HEAD`"; \
+ echo "Please re-run './configure' before creating source-distribution"; \
+ echo "******************************************************************************"; \
+ exit 1; \
+ fi
+ @if test -f $@ && test "`cat $@`" = "$(ProjectGitCommitId)"; \
+ then echo "$@ needs no update"; \
+ else echo "update $@ ($(ProjectGitCommitId))"; echo -n "$(ProjectGitCommitId)" > $@; fi
+
+sdist : VERSION GIT_COMMIT_ID
# Use:
# $(call sdist_ghc_file,compiler,stage2,cmm,Foo/Bar,CmmLex,x)