cable: external git info

CHANGELOG.md

@@ -5,6 +5,13 @@ Documentation of all notable changes to the **evmone** project.
 The format is based on [Keep a Changelog],
 and this project adheres to [Semantic Versioning].
 
+## [0.14.0] — 2024-XX-XX
+
+### Added
+
+- cable: external git info
+  [#1067](https://github.com/ethereum/evmone/pull/1067)
+
 ## [0.13.0] — 2024-09-23
 
 This release adds BLS precompiles and a system contract for [Prague]

cmake/cable/CableBuildInfo.cmake

@@ -22,8 +22,15 @@ include(GNUInstallDirs)
 set(cable_buildinfo_template_dir ${CMAKE_CURRENT_LIST_DIR}/buildinfo)
 
 function(cable_add_buildinfo_library)
-
-    cmake_parse_arguments("" "" PROJECT_NAME;EXPORT "" ${ARGN})
+    set(
+        ARG_NAMES
+        PROJECT_NAME
+        EXPORT
+        GIT_DESCRIBE
+        GIT_BRANCH
+        GIT_ORIGIN_URL
+    )
+    cmake_parse_arguments(PARSE_ARGV 0 "" "" "${ARG_NAMES}" "")
 
     if(NOT _PROJECT_NAME)
         message(FATAL_ERROR "The PROJECT_NAME argument missing")
@@ -55,10 +62,14 @@ function(cable_add_buildinfo_library)
         ${name}-git
         COMMAND ${CMAKE_COMMAND}
         -DGIT=${GIT_EXECUTABLE}
+        -DGIT_DESCRIBE=${_GIT_DESCRIBE}
+        -DGIT_BRANCH=${_GIT_BRANCH}
+        -DGIT_ORIGIN_URL=${_GIT_ORIGIN_URL}
         -DSOURCE_DIR=${PROJECT_SOURCE_DIR}
         -DOUTPUT_DIR=${output_dir}
         -P ${cable_buildinfo_template_dir}/gitinfo.cmake
         BYPRODUCTS ${output_dir}/gitinfo.txt
+        COMMENT "CableBuildInfo: updating gitinfo.txt"
     )
 
     add_custom_command(

cmake/cable/buildinfo/gitinfo.cmake

@@ -4,45 +4,55 @@
 
 # Execute git only if the tool is available.
 if(GIT)
-    execute_process(
-        COMMAND ${GIT} describe --always --long --tags --first-parent --match=v* --abbrev=40 --dirty
-        WORKING_DIRECTORY ${SOURCE_DIR}
-        OUTPUT_VARIABLE gitinfo
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-        ERROR_VARIABLE error
-        ERROR_STRIP_TRAILING_WHITESPACE
-    )
-    if(error)
-        message(WARNING "Git ${error}")
+    if (GIT_DESCRIBE)
+        set(gitdescribe "${GIT_DESCRIBE}")
+    else()
+        execute_process(
+            COMMAND ${GIT} describe --always --long --tags --first-parent --match=v* --abbrev=40 --dirty
+            WORKING_DIRECTORY ${SOURCE_DIR}
+            OUTPUT_VARIABLE gitdescribe
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            ERROR_VARIABLE error
+            ERROR_STRIP_TRAILING_WHITESPACE
+        )
+        if(error)
+            message(WARNING "Git ${error}")
+        endif()
     endif()
 
-    execute_process(
-        COMMAND ${GIT} rev-parse --abbrev-ref HEAD
-        WORKING_DIRECTORY ${SOURCE_DIR}
-        OUTPUT_VARIABLE gitbranch
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-        ERROR_VARIABLE error
-        ERROR_STRIP_TRAILING_WHITESPACE
-    )
-    if(error)
-        message(WARNING "Git ${error}")
+    if (GIT_BRANCH)
+        set(gitbranch "${GIT_BRANCH}")
     else()
-        set(gitinfo "${gitinfo}\n${gitbranch}")
+        execute_process(
+            COMMAND ${GIT} rev-parse --abbrev-ref HEAD
+            WORKING_DIRECTORY ${SOURCE_DIR}
+            OUTPUT_VARIABLE gitbranch
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            ERROR_VARIABLE error
+            ERROR_STRIP_TRAILING_WHITESPACE
+        )
+        if(error)
+            message(WARNING "Git ${error}")
+        endif()
     endif()
 
-    execute_process(
-        COMMAND ${GIT} config --get remote.origin.url
-        WORKING_DIRECTORY ${SOURCE_DIR}
-        OUTPUT_VARIABLE gitorigin
-        OUTPUT_STRIP_TRAILING_WHITESPACE
-        ERROR_VARIABLE error
-        ERROR_STRIP_TRAILING_WHITESPACE
-    )
-    if(error)
-        message(WARNING "Git ${error}")
+    if (GIT_ORIGIN_URL)
+        set(gitorigin "${GIT_ORIGIN_URL}")
     else()
-        set(gitinfo "${gitinfo}\n${gitorigin}\n")
+        execute_process(
+            COMMAND ${GIT} config --get remote.origin.url
+            WORKING_DIRECTORY ${SOURCE_DIR}
+            OUTPUT_VARIABLE gitorigin
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            ERROR_VARIABLE error
+            ERROR_STRIP_TRAILING_WHITESPACE
+        )
+        if(error)
+            message(WARNING "Git ${error}")
+        endif()
     endif()
+
+    set(gitinfo "${gitdescribe}\n${gitbranch}\n${gitorigin}\n")
 endif()
 
 set(gitinfo_file ${OUTPUT_DIR}/gitinfo.txt)