Fix build issue from alpha 10

.github/workflows/release.yaml

@@ -10,8 +10,10 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
+          ref: master
       - run: git rev-parse --short=5 HEAD > cmake/AutoRevision.txt
-      - run: git describe --tags `git rev-list --tags --max-count=1 master` >> cmake/AutoRevision.txt
+      - run: git describe --tags `git rev-list --tags --max-count=1` >> cmake/AutoRevision.txt
+      - run: cat cmake/AutoRevision.txt
       - uses: stefanzweifel/git-auto-commit-action@v4
         with:
           commit_message: "Release update of AutoRevision.txt"
@@ -23,6 +25,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
+          ref: master
       - name: Make build directory
         run: mkdir -p -v $PWD/build
       - name: Create tar.gz

cmake/AutoRevision.cmake

@@ -15,10 +15,11 @@ if(Git_FOUND)
 
   if(STATUS AND NOT STATUS EQUAL 0)
 
-    # In case git is not found (for example the person uses the tarball) we still need the variables
-    #   set. So we get them from AutoRevision.txt instead that is updated by a GitHub Action at Release
+    # In case git is found but we are not in a good repo we still need the variables set.
+    #   So we get them from AutoRevision.txt instead that is updated by a GitHub Action at Release
     # See .git/workflows/release.yaml
 
+    message("-- git was found, but we are not in a valid repository. Using AutoRevision.txt")
     file(READ cmake/AutoRevision.txt FC21_REV_HEAD_HASH_H LIMIT 5)
     string(REGEX REPLACE "\n$" "" FC21_REV_HEAD_HASH_H "${FC21_REV_HEAD_HASH_H}")
 
@@ -42,6 +43,7 @@ if(Git_FOUND)
     # In this case, we have git and are in a good repo, so let's get the values we need from git directly
 
     # Get the value of the git hash at HEAD to 5 chars
+    message("-- git was found and we are in a valid repository. Using git commands.")
     execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=.git rev-parse --short=5 HEAD
                     OUTPUT_VARIABLE FC21_REV_HEAD_HASH_H
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
@@ -51,7 +53,7 @@ if(Git_FOUND)
     message("-- Git HEAD Commit Hash: (hex) ${FC21_REV_HEAD_HASH_H} and (dec) ${FC21_REV_HEAD_HASH_D}")
 
     # Get a temp value of the full commit hash of the latest tag that is active
-    execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=.git rev-list --tags --max-count=1 master
+    execute_process(COMMAND ${GIT_EXECUTABLE} --git-dir=.git rev-list --tags --max-count=1
                     OUTPUT_VARIABLE _output
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
 
@@ -70,4 +72,29 @@ if(Git_FOUND)
     #message("-- Latest Git Tag List: ${FC21_REV_TAG_LIST}")
 
   endif()
+
+else()
+
+  # In this case git is not found at all, but we still need the variables set.
+  #   So we get them from AutoRevision.txt instead that is updated by a GitHub Action at Release
+  # See .git/workflows/release.yaml
+
+  message("-- git was not found installed. Using AutoRevision.txt")
+  file(READ cmake/AutoRevision.txt FC21_REV_HEAD_HASH_H LIMIT 5)
+  string(REGEX REPLACE "\n$" "" FC21_REV_HEAD_HASH_H "${FC21_REV_HEAD_HASH_H}")
+
+  # Convert the hexadecimal hash to a decimal number to support the project()
+  math(EXPR FC21_REV_HEAD_HASH_D "0x${FC21_REV_HEAD_HASH_H}" OUTPUT_FORMAT DECIMAL)
+  message("-- AutoRevision HEAD Commit Hash: (hex) ${FC21_REV_HEAD_HASH_H} and (dec) ${FC21_REV_HEAD_HASH_D}")
+
+  file(READ cmake/AutoRevision.txt FC21_REV_TAG OFFSET 6)
+  string(REGEX REPLACE "\n$" "" FC21_REV_TAG "${FC21_REV_TAG}")
+
+  # Manipulate the tag so we can turn it into a list for use later
+  string(REPLACE "v" "" FC21_REV_TAG2 "${FC21_REV_TAG}")
+  string(REPLACE "." " " FC21_REV_TAG2 "${FC21_REV_TAG2}")
+  string(REPLACE "-" " " FC21_REV_TAG2 "${FC21_REV_TAG2}")
+  set(FC21_REV_TAG_LIST ${FC21_REV_TAG2})
+  separate_arguments(FC21_REV_TAG_LIST)
+
 endif()

cmake/AutoRevision.txt

@@ -1,2 +1,2 @@
-8c94b
-v3.0-alpha.9
+c6855
+v3.0-alpha.10