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| author | Even Rouault <even.rouault@spatialys.com> | 2019-04-28 22:01:40 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2019-04-28 22:09:03 +0200 |
| commit | 7bf0f597b8b0d7d209d856fa106b521ed65678af (patch) | |
| tree | 357adfd638ccaa153bfc4f8ba378740c8d270696 /data | |
| parent | 0fc0c6d8d535fcbf8b7c72d5a6c22c9daa780d49 (diff) | |
| download | PROJ-7bf0f597b8b0d7d209d856fa106b521ed65678af.tar.gz PROJ-7bf0f597b8b0d7d209d856fa106b521ed65678af.zip | |
autoconf build: add a PROJ_DB_CACHE_DIR trick to speed-up builds
If the PROJ_DB_CACHE_DIR environment variable is defined, then a
$(PROJ_DB_CACHED_DIR)/proj.db.sql.md5 file is used to determine if
the set of .sql files has changed since the last time. If not then
$(PROJ_DB_CACHED_DIR)/proj.db is directly used.
This can saved a few seconds when doing rebuilds.
This is a poor man equivalent of ccache for generating the database :-)
Diffstat (limited to 'data')
| -rw-r--r-- | data/Makefile.am | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/data/Makefile.am b/data/Makefile.am index 28d57ddb..a4446287 100644 --- a/data/Makefile.am +++ b/data/Makefile.am @@ -64,7 +64,13 @@ proj.db: $(DATAPATH)/sql/*.sql for x in $(SQL_ORDERED_LIST); do \ export SQL_EXPANDED_LIST="$${SQL_EXPANDED_LIST} $(DATAPATH)/$$x"; \ done; \ - cat $${SQL_EXPANDED_LIST} | sqlite3 proj.db; \ + if test "x$(PROJ_DB_CACHE_DIR)" != "x" -a -f "$(PROJ_DB_CACHE_DIR)/proj.db" -a -f "$(PROJ_DB_CACHE_DIR)/proj.db.sql.md5" ; then \ + cat $${SQL_EXPANDED_LIST} | md5sum | diff - "$(PROJ_DB_CACHE_DIR)/proj.db.sql.md5" > /dev/null \ + && (echo "Reusing cached proj.db"; cp "$(PROJ_DB_CACHE_DIR)/proj.db" proj.db); \ + fi; \ + if test ! -f proj.db ; then \ + cat $${SQL_EXPANDED_LIST} | sqlite3 proj.db; \ + fi; \ if [ $$? -ne 0 ] ; then \ echo "Build of proj.db failed"; \ $(RM) proj.db; \ @@ -77,6 +83,12 @@ proj.db: $(DATAPATH)/sql/*.sql echo "Foreign key check failed"; \ $(RM) proj.db; \ exit 1; \ + else \ + if test "x$(PROJ_DB_CACHE_DIR)" != "x" ; then \ + mkdir -p "$(PROJ_DB_CACHE_DIR)"; \ + cat $${SQL_EXPANDED_LIST} | md5sum > "$(PROJ_DB_CACHE_DIR)/proj.db.sql.md5"; \ + cp proj.db "$(PROJ_DB_CACHE_DIR)"; \ + fi \ fi \ fi |