Don't overwrite .terraform-version files. Only change the default. Wa…

…rn when overridden

CHANGELOG.md

@@ -1,8 +1,9 @@
-## 2.0.0-alpha1 (November 24, 2019)
+## 2.0.0 (Unreleased)
 
  * New logging library
  * New bash4 dependency
  * Massive testing, logging and loading refactoring
+ * Fix to 'use' logic: don't overwrite .terraform-version files
 
 ## 1.0.2 (October 29, 2019)
 

libexec/tfenv-use

@@ -108,13 +108,16 @@ target_path="${TFENV_ROOT}/versions/${version}";
 [ -x "${target_path}/terraform" ] \
   || log 'error' "Version directory for ${version} is present, but the terraform binary is not executable! Manual intervention required.";
 
-log 'info' "Switching to v${version}";
-
-version_file="$(tfenv-version-file)";
+log 'info' "Switching default version to v${version}";
+version_file="${TFENV_ROOT}/version";
 log 'debug' "Writing \"${version}\" to \"${version_file}\"";
 echo "${version}" > "${version_file}" \
   || log 'error' "Switch to v${version} failed";
 
+if [ "${version_file}" != "$(tfenv-version-file)" ]; then
+  log 'warn' "Default version file overridden by $(tfenv-version-file), changing the default version has no effect";
+fi;
+
 terraform --version 1>/dev/null \
   || log 'error' "'terraform --version' failed. Something is seriously wrong";
 log 'info' "Switching completed";