Improve pre-commit message (Azure#30476)

.githooks/pre-commit.ps1

@@ -17,8 +17,7 @@ if (git rev-parse --verify HEAD 2>$null) {
     $against = "HEAD"
 }
 else {
-    # Initial commit: diff against an empty tree object
-    Write-Host "Using empty tree object as the previous commit"
+    Write-Host "Using an empty tree object as the previous commit"
     $against = $(git hash-object -t tree /dev/null)
 }
 
@@ -29,7 +28,10 @@ foreach ($file in $files) {
     # Check if the file contains secrets
     $detected = $(azdev scan -f $file | ConvertFrom-Json).secrets_detected
     if ($detected -eq "True") {
-        Write-Host "Detected secrets from $file. You can run 'azdev mask' to remove secrets before commit." -ForegroundColor Red
+        Write-Host "Detected secrets from $file. Please run the following command to mask it:" -ForegroundColor Red
+        Write-Host "+++++++++++++++++++++++++++++++++++++++++++++++++++++++" -ForegroundColor Red
+        Write-Host "azdev mask -f $file" -ForegroundColor Red
+        Write-Host "+++++++++++++++++++++++++++++++++++++++++++++++++++++++" -ForegroundColor Red
         $hasSecrets = 1
     }
 }

.githooks/pre-commit.sh

@@ -16,22 +16,21 @@ then
     printf "Using HEAD as the previous commit\n"
     against=HEAD
 else
-    printf "Using empty tree object as the previous commit\n"
+    printf "Using an empty tree object as the previous commit\n"
     against=$(git hash-object -t tree /dev/null)
 fi
 has_secrets=0
-
-IFS_OLD=${IFS}
-IFS=$'\n'
 for FILE in `git diff --cached --name-only --diff-filter=AM $against` ; do
     # Check if the file contains secrets
     detected=$(azdev scan -f "$FILE" | python -c "import sys, json; print(json.load(sys.stdin)['secrets_detected'])")
     if [ "$detected" = "True" ]; then
-      printf "\033[0;31mDetected secrets from %s, You can run 'azdev mask' to remove secrets before commit.\033[0m\n" "$FILE"
+      printf "\033[0;31mDetected secrets from %s, Please run the following command to mask it:\033[0m\n" "$FILE"
+      printf "\033[0;31m+++++++++++++++++++++++++++++++++++++++++++++++++++++++\033[0m\n"
+      printf "\033[0;31mazdev mask -f %s\033[0m\n" "$FILE"
+      printf "\033[0;31m+++++++++++++++++++++++++++++++++++++++++++++++++++++++\033[0m\n"
       has_secrets=1
     fi
 done
-IFS=${IFS_OLD}
 
 if [ $has_secrets -eq 1 ]; then
     printf "\033[0;31mSecret detected. If you want to skip that, run add '--no-verify' in the end of 'git commit' command.\033[0m\n"