min-required correctly finds tagged release versions (#206)

Co-authored-by: Zordrak <Zordrak@users.noreply.github.com>

libexec/tfenv-min-required

@@ -74,16 +74,16 @@ see https://www.terraform.io/docs/configuration/terraform.html for details';
 find_min_required() {
   local root="${1}";
 
-  versions="$(grep -h -R required_version --include '*tf' "${root}"/* | tr -c -d '0-9. ~=!<>' )";
+  versions="$(grep -h -R required_version --include '*tf' "${root}"/* | grep  -o '\([0-9]\+\.\?\)\{2,3\}\(-[a-z]\+[0-9]\+\)\?')";
 
-  if [[ "${versions}" =~ ([~=!<>]{0,2}[[:blank:]]*[0-9]+[0-9.]+)[^0-9]* ]]; then
-    found_min_required="${BASH_REMATCH[1]}";
+  if [[ "${versions}" =~ ([~=!<>]{0,2}[[:blank:]]*[0-9]+[0-9.]+)[^0-9]*(-[a-z]+[0-9]+)? ]]; then
+    found_min_required="${BASH_REMATCH[1]}${BASH_REMATCH[2]}"
 
     if [[ "${found_min_required}" =~ ^!=.+ ]]; then
       log 'debug' "Error: Min required version is a negation ($found_min_required) - we cannot guess the desired one.";
       bailout;
     else
-      found_min_required="$(echo "$found_min_required" | tr -c -d '0-9.')";
+      found_min_required="$(echo "$found_min_required")";
       #echo "Min required version is detected as ${found_min_required}";
       echo "${found_min_required}";
       exit 0;

test/test_use_minrequired.sh

@@ -55,12 +55,16 @@ cleanup || log 'error' 'Cleanup failed?!';
 
 v='0.8.8';
 minv='0.8.0';
+minv_tag='0.13.0-rc1'
 (
   tfenv install "${v}" || true;
   tfenv use "${v}" || exit 1;
   check_active_version "${v}" || exit 1;
 ) || error_and_proceed "Installing specific version ${v}";
 
+
+log 'info' '### Install min-required normal version (#.#.#)';
+
 echo "terraform {
 
   required_version = \">=${minv}\"
@@ -73,6 +77,20 @@ check_active_version "${minv}" || error_and_proceed 'Min required version does n
 
 cleanup || log 'error' 'Cleanup failed?!';
 
+log 'info' '### Install min-required tagged version (#.#.#-tag#)'
+
+echo "terraform {
+
+    required_version = \">=${minv_tag}\"
+}" >> min_required.tf;
+
+tfenv install min-required
+tfenv use min-required
+
+check_active_version "${minv_tag}" || error_and_proceed 'Min required version does not match';
+
+cleanup || log 'error' 'Cleanup failed?!';
+
 if [ "${#errors[@]}" -gt 0 ]; then
   log 'warn' '===== The following use_minrequired tests failed =====';
   for error in "${errors[@]}"; do