Use the source package date or the source git repository date

instead of the current build date. The use of a stable date
is necessary to achieve reproducible builds.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 589e29d020)

modules/FindTDE.cmake

@@ -86,6 +86,9 @@ if( NOT TDE_FOUND )
   set( KDE3_DCOPIDLNG_EXECUTABLE env KDECONFIG=${KDECONFIG_EXECUTABLE} ${KDE3_DCOPIDLNG_EXECUTABLE}
     CACHE INTERNAL "dcopidlng executable" FORCE )
 
+  # read source metadata
+  tde_read_src_metadata()
+
   message( STATUS "  found 'TDE', version ${TDE_VERSION}" )
 
 endif( NOT TDE_FOUND )

modules/TDEMacros.cmake

@@ -102,6 +102,47 @@ macro( tde_execute_process )
 endmacro( tde_execute_process )
 
 
+################################################
+#####
+##### tde_read_src_metadata
+
+macro( tde_read_src_metadata )
+  # look for SCM data if present
+  if( EXISTS "${CMAKE_SOURCE_DIR}/.tdescminfo" )
+    file( READ "${CMAKE_SOURCE_DIR}/.tdescminfo" TDE_SCM_INFO )
+    string( REGEX MATCH "(^|\n)Name: ([^\n]*)" TDE_SCM_MODULE_NAME "${TDE_SCM_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_SCM_MODULE_NAME "${TDE_SCM_MODULE_NAME}" )
+    string( REGEX MATCH "(^|\n)Revision: ([^\n]*)" TDE_SCM_MODULE_REVISION "${TDE_SCM_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_SCM_MODULE_REVISION "${TDE_SCM_MODULE_REVISION}" )
+    string( REGEX MATCH "(^|\n)DateTime: ([^\n]*)" TDE_SCM_MODULE_DATETIME "${TDE_SCM_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_SCM_MODULE_DATETIME "${TDE_SCM_MODULE_DATETIME}" )
+  else( )
+    if( EXISTS "${CMAKE_SOURCE_DIR}/.tdescmmodule" )
+      file( STRINGS "${CMAKE_SOURCE_DIR}/.tdescmmodule" TDE_SCM_MODULE_NAME )
+    endif( EXISTS "${CMAKE_SOURCE_DIR}/.tdescmmodule" )
+    if( EXISTS "${CMAKE_SOURCE_DIR}/.tdescmrevision" )
+      file( STRINGS "${CMAKE_SOURCE_DIR}/.tdescmrevision" TDE_SCM_MODULE_REVISION )
+    endif( EXISTS "${CMAKE_SOURCE_DIR}/.tdescmrevision" )
+  endif( )
+
+  # look for package data if present
+  if( EXISTS "${CMAKE_SOURCE_DIR}/.tdepkginfo" )
+    file( READ "${CMAKE_SOURCE_DIR}/.tdepkginfo" TDE_PKG_INFO )
+  endif( )
+  if( EXISTS "${CMAKE_BINARY_DIR}/.tdepkginfo" )
+    file( READ "${CMAKE_BINARY_DIR}/.tdepkginfo" TDE_PKG_INFO )
+  endif( )
+  if( TDE_PKG_INFO )
+    string( REGEX MATCH "(^|\n)Name: ([^\n]*)" TDE_PKG_NAME "${TDE_PKG_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_PKG_NAME "${TDE_PKG_NAME}" )
+    string( REGEX MATCH "(^|\n)Version: ([^\n]*)" TDE_PKG_REVISION "${TDE_PKG_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_PKG_VERSION "${TDE_PKG_VERSION}" )
+    string( REGEX MATCH "(^|\n)DateTime: ([^\n]*)" TDE_PKG_DATETIME "${TDE_PKG_INFO}" )
+    string( REGEX REPLACE "^[^:]*: " "" TDE_PKG_DATETIME "${TDE_PKG_DATETIME}" )
+  endif( )
+endmacro( tde_read_src_metadata )
+
+
 if( DEFINED MASTER_SOURCE_DIR )
   return( )
 endif( )
@@ -865,6 +906,22 @@ macro( tde_add_kpart _target )
 endmacro( tde_add_kpart )
 
 
+#################################################
+#####
+##### tde_curdatetime
+
+macro( tde_curdatetime result )
+  if( TDE_PKG_DATETIME )
+    set( ${result} ${TDE_PKG_DATETIME} )
+  elseif( TDE_SCM_MODULE_DATETIME )
+    set( ${result} ${TDE_SCM_MODULE_DATETIME} )
+  else( )
+    tde_execute_process( COMMAND "date" "+%m/%d/%Y %H:%M:%S" OUTPUT_VARIABLE ${result} )
+    string( REGEX REPLACE "(..)/(..)/(....) (........).*" "\\1/\\2/\\3 \\4" ${result} ${${result}} )
+  endif( )
+endmacro( tde_curdatetime )
+
+
 #################################################
 #####
 ##### tde_add_executable