[PATCH] D105352: [flang][driver] Add support for `--version` in the bash wrapper

[Andrzej Warzynski via Phabricator via llvm-commits]

awarzynski created this revision.
Herald added a reviewer: sscalpone.
awarzynski requested review of this revision.
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The bash wrapper script, `flang`, calls `flang-new -fc1` under the hood,
which does not support `--version` (this is consistent with `clang -cc1
--version`). This change is needed for `flang --version` to work as
expected.

Note that `flang --version` (the Flang bash wrapper script for the
compiler driver) gives rather minimal output compared to `flang-new
--version` (the Flang compiler driver). As the wrapper script is just a
temporary solution for us, this should be sufficient.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105352

Files:
  flang/tools/f18/flang.in


Index: flang/tools/f18/flang.in
===================================================================
--- flang/tools/f18/flang.in
+++ flang/tools/f18/flang.in
@@ -24,6 +24,7 @@
 COMPILE_ONLY="False"
 PREPROCESS_ONLY="False"
 TEMP_OUTPUT="flang_temp_out_"
+PRINT_VERSION="False"
 
 # === parse_args ==============================================================
 #
@@ -90,6 +91,10 @@
           PREPROCESS_ONLY="True"
         fi
 
+        if [[ $1 == "-v" || $1 == "--version" ]]; then
+          PRINT_VERSION="True"
+        fi
+
         shift
         continue
 
@@ -204,7 +209,6 @@
       [[ $opt == "-pedantic" ]] ||
       [[ $opt =~ ^-std=.* ]] ||
       [[ $opt =~ ^-U.* ]] ||
-      [[ $opt == "--version" ]] ||
       [[ $opt == "-Werror" ]]; then
       flang_opts+=($opt)
     elif [[ $opt =~ -I.* ]] || [[ $opt =~ -J.* ]]; then
@@ -266,6 +270,11 @@
 main() {
   parse_args "$@"
 
+  if [[ $PRINT_VERSION == "True" ]]; then
+    echo "flang version @FLANG_VERSION@"
+    exit 0
+  fi
+
   fortran_source_files=()
   other_source_files=()
   object_files=()


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