From c6853ff32a123a3fe4956d7667cf53b0138c19c1 Mon Sep 17 00:00:00 2001
From: Eike Ziller <eike.ziller@qt.io>
Date: Fri, 20 Jan 2023 10:52:31 +0100
Subject: GitHub: Fix ccache archive downloading if there is none

Change-Id: I54fcac1a86c6f101469a695aa3610ae755354271
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
---
 .github/workflows/build_cmake.yml | 52 ++++++++++++++++++++-------------------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/.github/workflows/build_cmake.yml b/.github/workflows/build_cmake.yml
index e430f35ebd..b93e14251d 100644
--- a/.github/workflows/build_cmake.yml
+++ b/.github/workflows/build_cmake.yml
@@ -458,31 +458,33 @@ jobs:
 
           string(JSON artifacts_length LENGTH "${artifacts_json}" "artifacts")
           math(EXPR artifacts_length "${artifacts_length} - 1")
-          foreach(idx RANGE 0 ${artifacts_length})
-            string(JSON artifact_js GET "${artifacts_json}" "artifacts" ${idx})
-            string(JSON name GET "${artifact_js}" "name")
-            if ("${name}" STREQUAL "${{ steps.ccache.outputs.archive_name }}")
-              string(JSON download_url GET "${artifact_js}" "archive_download_url")
-
-              foreach(retry RANGE 10)
-                file(DOWNLOAD "${download_url}"
-                  "${{ steps.ccache.outputs.archive_name }}.zip"
-                  NETRC_FILE "$ENV{GITHUB_WORKSPACE}/netrc.txt"
-                  NETRC REQUIRED
-                  SHOW_PROGRESS)
-                file(SIZE "${{ steps.ccache.outputs.archive_name }}.zip" fileSize)
-                if (fileSize GREATER 0)
-                  break()
-                endif()
-              endforeach()
-
-              execute_process(COMMAND ${CMAKE_COMMAND} -E tar xvf "${{ steps.ccache.outputs.archive_name }}.zip")
-              file(MAKE_DIRECTORY .ccache)
-              execute_process(COMMAND ${CMAKE_COMMAND} -E tar xf "../${{ steps.ccache.outputs.archive_name }}.tar" WORKING_DIRECTORY .ccache)
-
-              return()
-            endif()
-          endforeach()
+          if(${artifacts_length} GREATER_EQUAL 0)
+            foreach(idx RANGE 0 ${artifacts_length})
+              string(JSON artifact_js GET "${artifacts_json}" "artifacts" ${idx})
+              string(JSON name GET "${artifact_js}" "name")
+              if ("${name}" STREQUAL "${{ steps.ccache.outputs.archive_name }}")
+                string(JSON download_url GET "${artifact_js}" "archive_download_url")
+
+                foreach(retry RANGE 10)
+                  file(DOWNLOAD "${download_url}"
+                    "${{ steps.ccache.outputs.archive_name }}.zip"
+                    NETRC_FILE "$ENV{GITHUB_WORKSPACE}/netrc.txt"
+                    NETRC REQUIRED
+                    SHOW_PROGRESS)
+                  file(SIZE "${{ steps.ccache.outputs.archive_name }}.zip" fileSize)
+                  if (fileSize GREATER 0)
+                    break()
+                  endif()
+                endforeach()
+
+                execute_process(COMMAND ${CMAKE_COMMAND} -E tar xvf "${{ steps.ccache.outputs.archive_name }}.zip")
+                file(MAKE_DIRECTORY .ccache)
+                execute_process(COMMAND ${CMAKE_COMMAND} -E tar xf "../${{ steps.ccache.outputs.archive_name }}.tar" WORKING_DIRECTORY .ccache)
+
+                return()
+              endif()
+            endforeach()
+          endif()
         endforeach()
 
     - name: Build
-- 
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