Update prettier entrypoint.sh to consider dry run (#8)

* Update entrypoint.sh to consider dry run

When dry-run is set to true and we use the --write flag, we expect to
see what files we'll need to reformat without pushing to remote.
However, this requires us to commit the updated changes caused by
prettier. Previously, the placement of the dry run logic was done before
committing the formatted files, resulting to us not seeing the expected
files format. And only using the '--write' flag will not result to a
failure even if there are files that requires formatting.

By moving the logic after committing the prettier files, it will show us
the comparison between two files, without pushing to remote
(given that we use dry flag to true).

* Update description for dry mode

prettier/action.yml

@@ -39,7 +39,7 @@ inputs:
     required: false
     default: "**"
   dry:
-    description: Running the script in dry mode just shows whether there are files that should be prettified or not
+    description: Run prettier in dry-run mode. Display which files are/aren't pretty and changes made by prettier in the GitHub job summary
     required: false
     default: "false"
   prettier-version:

prettier/entrypoint.sh

@@ -169,6 +169,15 @@ prettier_output_summary() {
   )
 }
 
+dry_run_check() {
+  # case when --write is used with dry-run so if something is unpretty there will always have _git_changed
+  if _dry_run; then
+    summarize_changes 'Unpretty Files Changes'
+    echo "Finishing dry-run. Exiting before committing." | tee -a "$GITHUB_STEP_SUMMARY"
+    exit 1
+  fi
+}
+
 npx prettier $prettier_options > "$prettier_out" 2> "$prettier_err" \
   || {
     PRETTIER_RESULT=$?;
@@ -215,13 +224,6 @@ if ! _git_changed; then
   exit
 fi
 
-# case when --write is used with dry-run so if something is unpretty there will always have _git_changed
-if _dry_run; then
-  summarize_changes 'Unpretty Files Changes'
-  echo "Finishing dry-run. Exiting before committing." | tee -a "$GITHUB_STEP_SUMMARY"
-  exit 1
-fi
-
 # Calling method to configure the git environment
 _git_setup
 
@@ -248,6 +250,9 @@ if _amend_commit; then
     git pull
     git commit --amend --no-edit
   ) | tee -a "$GITHUB_STEP_SUMMARY"
+
+  dry_run_check
+
   if _has_upstream; then
     git push origin -f || failed_push=1
   fi
@@ -258,6 +263,9 @@ else
   else
     git commit -n -m "$INPUT_COMMIT_MESSAGE" ${INPUT_COMMIT_OPTIONS:+"$INPUT_COMMIT_OPTIONS"} || commit_canary=
   fi
+
+  dry_run_check
+
   if [ -n "$commit_canary" ]; then
     log_blame_rev "Prettier"
   else