Modify the sage script so it sets SAGE_ROOT and SAGE_LOCAL correctly.

Author: culler

Sage_framework/files/sage

@@ -203,25 +203,29 @@ usage() {
 # below, after sourcing sage-env.
 
 # Determine SAGE_ROOT, SAGE_LOCAL, and SAGE_VENV.
-unset SAGE_VENV
-if [ -x "${SELF}-config" ]; then
-    # optional sage-config console script, installed by sage_conf
-    export SAGE_ROOT=$("${SELF}-config" SAGE_ROOT)
-    export SAGE_LOCAL=$("${SELF}-config" SAGE_LOCAL)
-fi
-if [ -f "${SELF}-src-env-config" ]; then
-    # Not installed script, present only in src/bin/
-    SAGE_SRC_ENV_CONFIG=1
-    . "${SELF}-src-env-config" >&2
-fi
-if [ -z "$SAGE_VENV" -a -x "${SELF}-venv-config" ]; then
-    # installed by setup.py
-    export SAGE_VENV=$("${SELF}-venv-config" SAGE_VENV)
-fi
-if [ -f "${SELF}-env-config" ]; then
-    # As of Issue #22731, sage-env-config is optional.
-    . "${SELF}-env-config" >&2
-fi
+export SAGE_ROOT="${SAGE_SYMLINK}"
+export SAGE_LOCAL="${SAGE_ROOT}/local"
+export SAGE_VENV="${SAGE_ROOT}/local"
+
+# unset SAGE_VENV
+# if [ -x "${SELF}-config" ]; then
+#     # optional sage-config console script, installed by sage_conf
+#     export SAGE_ROOT=$("${SELF}-config" SAGE_ROOT)
+#     export SAGE_LOCAL=$("${SELF}-config" SAGE_LOCAL)
+# fi
+# if [ -f "${SELF}-src-env-config" ]; then
+#     # Not installed script, present only in src/bin/
+#     SAGE_SRC_ENV_CONFIG=1
+#     . "${SELF}-src-env-config" >&2
+# fi
+# if [ -z "$SAGE_VENV" -a -x "${SELF}-venv-config" ]; then
+#     # installed by setup.py
+#     export SAGE_VENV=$("${SELF}-venv-config" SAGE_VENV)
+# fi
+# if [ -f "${SELF}-env-config" ]; then
+#     # As of Issue #22731, sage-env-config is optional.
+#     . "${SELF}-env-config" >&2
+# fi
 
 #####################################################################
 # Special options to be processed without sage-env