added support for POSTGIS_GDAL_ENABLED_DRIVERS and POSTGIS_ENABLE_OUTDB_RASTERS envir...

git-svn-id: http://svn.osgeo.org/postgis/trunk@12494 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/raster/rt_pg/rtpostgis.c b/raster/rt_pg/rtpostgis.c
index 98fbcf806e5498dd63264ab8819c7ef7240bfad5..339d42bc276c204616fe13702d38a6cd2fcc13da 100644 (file)
--- a/raster/rt_pg/rtpostgis.c
+++ b/raster/rt_pg/rtpostgis.c
@@ -160,7 +160,7 @@ extern char enable_outdb_rasters;
 static void
 rtpg_assignHookGDALDataPath(const char *newpath, void *extra) {
        POSTGIS_RT_DEBUGF(4, "newpath = %s", newpath);
-       POSTGIS_RT_DEBUGF(4, "gdaldatapath = %s", gdaldatapath);
+       POSTGIS_RT_DEBUGF(4, "gdaldatapath = %s", gdal_datapath);
 
        /* clear finder cache */
        CPLFinderClean();
@@ -302,6 +302,59 @@ rtpg_assignHookEnableOutDBRasters(bool enable, void *extra) {
 void
 _PG_init(void) {
 
+       char *env_postgis_gdal_enabled_drivers = NULL;
+       char *boot_postgis_gdal_enabled_drivers = NULL;
+
+       char *env_postgis_enable_outdb_rasters = NULL;
+       bool boot_postgis_enable_outdb_rasters = false;
+
+       /*
+        use POSTGIS_GDAL_ENABLED_DRIVERS to set the bootValue
+        of GUC postgis.gdal_enabled_drivers
+       */
+       env_postgis_gdal_enabled_drivers = getenv("POSTGIS_GDAL_ENABLED_DRIVERS");
+       if (env_postgis_gdal_enabled_drivers == NULL) {
+               boot_postgis_gdal_enabled_drivers = palloc(
+                       sizeof(char) * (strlen(GDAL_DISABLE_ALL) + 1)
+               );
+               sprintf(boot_postgis_gdal_enabled_drivers, "%s", GDAL_DISABLE_ALL);
+       }
+       else {
+               boot_postgis_gdal_enabled_drivers = rtpg_trim(
+                       env_postgis_gdal_enabled_drivers
+               );
+       }
+       POSTGIS_RT_DEBUGF(
+               4,
+               "boot_postgis_gdal_enabled_drivers = %s",
+               boot_postgis_gdal_enabled_drivers
+       );
+
+       /*
+        use POSTGIS_ENABLE_OUTDB_RASTERS to set the bootValue
+        of GUC postgis.enable_outdb_rasters
+       */
+       env_postgis_enable_outdb_rasters = getenv("POSTGIS_ENABLE_OUTDB_RASTERS");
+       if (env_postgis_enable_outdb_rasters != NULL) {
+               char *env = rtpg_trim(env_postgis_enable_outdb_rasters);
+
+               /* out of memory */
+               if (env == NULL) {
+                       elog(ERROR, "_PG_init: Cannot process environmental variable: POSTGIS_ENABLE_OUTDB_RASTERS");
+                       return;
+               }
+
+               if (strcmp(env, "1") == 0)
+                       boot_postgis_enable_outdb_rasters = true;
+
+               pfree(env);
+       }
+       POSTGIS_RT_DEBUGF(
+               4,
+               "boot_postgis_enable_outdb_rasters = %s",
+               boot_postgis_enable_outdb_rasters ? "TRUE" : "FALSE"
+       );
+
        /* Install liblwgeom handlers */
        pg_install_lwgeom_handlers();
 
@@ -329,7 +382,7 @@ _PG_init(void) {
                "Enabled GDAL drivers.", /* short_desc */
                "List of enabled GDAL drivers by short name. To enable/disable all drivers, use 'ENABLE_ALL' or 'DISABLE_ALL' (sets the GDAL_SKIP config option).", /* long_desc */
                &gdal_enabled_drivers, /* valueAddr */
-               GDAL_DISABLE_ALL, /* bootValue */
+               boot_postgis_gdal_enabled_drivers, /* bootValue */
                PGC_SUSET, /* GucContext context */
                0, /* int flags */
 #if POSTGIS_PGSQL_VERSION >= 91
@@ -344,7 +397,7 @@ _PG_init(void) {
                "Enable Out-DB raster bands", /* short_desc */
                "If true, rasters can access data located outside the database", /* long_desc */
                &enable_outdb_rasters, /* valueAddr */
-               false, /* bootValue */
+               boot_postgis_enable_outdb_rasters, /* bootValue */
                PGC_SUSET, /* GucContext context */
                0, /* int flags */
 #if POSTGIS_PGSQL_VERSION >= 91
@@ -353,6 +406,9 @@ _PG_init(void) {
                rtpg_assignHookEnableOutDBRasters, /* GucBoolAssignHook assign_hook */
                NULL  /* GucShowHook show_hook */
        );
+
+       /* free memory allocations */
+       pfree(boot_postgis_gdal_enabled_drivers);
 }
 
 /* ---------------------------------------------------------------- */