From 83e4d7076e1e5dfac804c0f89a1fcdf31795671a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Sun, 15 Dec 2024 04:06:31 +0100
Subject: tdeioslave/fish: Use CMake code to generate fishcode.h. Executable
 bit on these scripts in the source code is no longer needed.
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Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
---
 tdeioslave/fish/CMakeLists.txt    | 10 ++++--
 tdeioslave/fish/fish.pl           |  0
 tdeioslave/fish/genfishcode.cmake | 68 +++++++++++++++++++++++++++++++++++----
 tdeioslave/fish/genfishcode.pl    | 43 -------------------------
 4 files changed, 70 insertions(+), 51 deletions(-)
 mode change 100755 => 100644 tdeioslave/fish/fish.pl
 delete mode 100755 tdeioslave/fish/genfishcode.pl

diff --git a/tdeioslave/fish/CMakeLists.txt b/tdeioslave/fish/CMakeLists.txt
index d7a30416b..c228c27ca 100644
--- a/tdeioslave/fish/CMakeLists.txt
+++ b/tdeioslave/fish/CMakeLists.txt
@@ -35,8 +35,14 @@ tde_create_translated_desktop(
 ##### tdeio_fish (module) #########################
 
 add_custom_command( OUTPUT fishcode.h
-  COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/genfishcode.pl ${CMAKE_CURRENT_SOURCE_DIR}/fish.pl > fishcode.h
-  DEPENDS fish.pl )
+  COMMAND ${CMAKE_COMMAND}
+    -DMASTER_CURRENT_SOURCE_DIR:FILEPATH="${CMAKE_CURRENT_SOURCE_DIR}"
+    -DFISH_CODE_SOURCE:FILEPATH="fish.pl"
+    -DFISH_CODE_OUTPUT:FILEPATH="fishcode.h"
+    -P "${CMAKE_CURRENT_SOURCE_DIR}/genfishcode.cmake"
+  COMMENT "Generate fishcode.h"
+  DEPENDS fish.pl
+)
 
 set_property( SOURCE fish.cpp APPEND PROPERTY OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/fishcode.h )
 
diff --git a/tdeioslave/fish/fish.pl b/tdeioslave/fish/fish.pl
old mode 100755
new mode 100644
diff --git a/tdeioslave/fish/genfishcode.cmake b/tdeioslave/fish/genfishcode.cmake
index 9b35a51ec..e66df099b 100644
--- a/tdeioslave/fish/genfishcode.cmake
+++ b/tdeioslave/fish/genfishcode.cmake
@@ -1,8 +1,64 @@
-#!/bin/sh
+#################################################
+#
+#  (C) 2024 Slávek Banko
+#  slavek (DOT) banko (AT) axis.cz
+#
+#  Improvements and feedback are welcome
+#
+#  This file is released under GPL >= 2
+#
+#################################################
 
-SUM=$( @MD5SUM@ @CMAKE_CURRENT_SOURCE_DIR@/fish.pl | cut -d ' ' @MD5SUM_CUT@ )
+# check and set variables
+if( NOT "${MASTER_CURRENT_SOURCE_DIR}" STREQUAL "" )
+  set( CMAKE_CURRENT_SOURCE_DIR "${MASTER_CURRENT_SOURCE_DIR}" )
+endif()
+if( "${FISH_CODE_SOURCE}" STREQUAL "" )
+  set( FISH_CODE_SOURCE "fish.pl" )
+endif()
+if( "${FISH_CODE_OUTPUT}" STREQUAL "" )
+  set( FISH_CODE_OUTPUT "fishcode.h" )
+endif()
+if( NOT IS_ABSOLUTE ${FISH_CODE_SOURCE} )
+  set( FISH_CODE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/${FISH_CODE_SOURCE}" )
+endif()
+if( NOT IS_ABSOLUTE ${FISH_CODE_OUTPUT} )
+  set( FISH_CODE_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FISH_CODE_OUTPUT}" )
+endif()
+if( NOT EXISTS ${FISH_CODE_SOURCE} )
+  message( FATAL_ERROR "Source file ${FISH_CODE_SOURCE} not exists!" )
+endif()
 
-#echo "#define CHECKSUM "\"$SUM\"" > fishcode.h
-#echo 'static const char *fishCode(' >> fishcode.h
-#sed -e 's/\\/\\\\/g;s/"/\\"/g;s/^[ 	]*/"/;/^"# /d;s/[ 	]*$$/\\n"/;/^"\\n"$$/d;s/{CHECKSUM}/'$$SUM'/;' @CMAKE_CURRENT_SOURCE_DIR@/fish.pl >> fishcode.h
-#echo ');' >> fishcode.h
+# load fish code source
+file( READ ${FISH_CODE_SOURCE} _fish_code )
+string( REGEX REPLACE "[^\n]" "" _fish_len ${_fish_code} )
+string( LENGTH "+${_fish_len}" _fish_len )
+string( MD5 _fish_md5 "${_fish_code}" )
+
+# prepare for C code
+set( _fish_pos 0 )
+set( _fish_output "\
+#define CHECKSUM \"${_fish_md5}\"
+static const char *fishCode(
+")
+string( REGEX REPLACE "\\\\" "\\\\\\\\" _fish_code "${_fish_code}" )
+string( REGEX REPLACE "\"" "\\\\\"" _fish_code "${_fish_code}" )
+while( _fish_pos LESS ${_fish_len} )
+  # pick line
+  string( REGEX REPLACE "^([^\n]*)\n(.*)" "\\1" _fish_line "${_fish_code}" )
+  string( REGEX REPLACE "^([^\n]*)\n(.*)" "\\2" _fish_code "${_fish_code}" )
+  math( EXPR _fish_pos "${_fish_pos}+1" )
+
+  # skip comments and empty lines
+  string( REGEX REPLACE "^[ \t]+" "" _fish_line "${_fish_line}" )
+  if( "${_fish_line}" STREQUAL "" OR "${_fish_line}" MATCHES "^# " )
+    continue()
+  endif()
+
+  # add line to output
+  set( _fish_output "${_fish_output}\"${_fish_line}\\n\"\n" )
+endwhile()
+set( _fish_output "${_fish_output});\n" )
+
+# write code to output file
+file( WRITE ${FISH_CODE_OUTPUT} "${_fish_output}" )
diff --git a/tdeioslave/fish/genfishcode.pl b/tdeioslave/fish/genfishcode.pl
deleted file mode 100755
index 60dfff8de..000000000
--- a/tdeioslave/fish/genfishcode.pl
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/usr/bin/perl
-use strict;
-use warnings;
-
-use Digest::MD5;
-
-sub md5sum {
-    my $filename = shift;
-    my $digest;
-    eval {
-        open( my $FILE, '<', $filename )
-            or die "Can't find file $filename\n";
-        my $ctx = Digest::MD5->new;
-        $ctx->addfile($FILE);
-        $digest = $ctx->hexdigest;
-        close($FILE);
-    };
-    if ($@) {
-        warn $@;
-    }
-    return $digest;
-}
-
-my $file = $ARGV[0] or die "Missing filename argument";
-
-my $fish_md5 = md5sum($file)
-    or die "Couldn't compute MD5 for some reason\n";
-print qq{#define CHECKSUM "$fish_md5"\n};
-print qq{static const char *fishCode(\n};
-
-open( my $FISH, "<", "$file" ) or die "Can't open $file\n";
-while (<$FISH>) {
-    chomp;
-    s|\\|\\\\|g;
-    s|"|\\"|g;
-    s/^\s*/"/;
-    next if /^"# /;
-    s/\s*$/\\n"/;
-    next if /^"\\n"$/;
-    print "$_\n";
-}
-close($FISH);
-print qq{);\n};
-- 
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