Add tooling to create an MSVC Makefile capable of building the core library and shell only, using a pre-built amalgamation.

FossilOrigin-Name: c46f1a13cb00264d1164399059250884c7be4ea0

tool/mkmsvcmin.tcl

@@ -0,0 +1,88 @@
+#!/usr/bin/tcl
+#
+# Removes and/or replaces specially marked sections from the Makefile
+# for MSVC, writing the resulting output to another (different) file.
+# In addition, some other strings are also removed and/or replaced if
+# they are present in the Makefile.
+#
+set fromFileName [lindex $argv 0]
+
+if {![file exists $fromFileName]} then {
+  error "input file \"$fromFileName\" does not exist"
+}
+
+set toFileName [lindex $argv 1]
+
+if {[file exists $toFileName]} then {
+  error "output file \"$toFileName\" already exists"
+}
+
+proc readFile { fileName } {
+  set file_id [open $fileName RDONLY]
+  fconfigure $file_id -encoding binary -translation binary
+  set result [read $file_id]
+  close $file_id
+  return $result
+}
+
+proc writeFile { fileName data } {
+  set file_id [open $fileName {WRONLY CREAT TRUNC}]
+  fconfigure $file_id -encoding binary -translation binary
+  puts -nonewline $file_id $data
+  close $file_id
+  return ""
+}
+
+proc escapeSubSpec { data } {
+  regsub -all -- {&} $data {\\\&} data
+  regsub -all -- {\\(\d+)} $data {\\\\\1} data
+  return $data
+}
+
+proc substVars { data } {
+  return [uplevel 1 [list subst -nocommands -nobackslashes $data]]
+}
+
+#
+# NOTE: This block is used to replace the section marked <<block1>> in
+#       the Makefile, if it exists.
+#
+set blocks(1) [string trimleft [string map [list \\\\ \\] {
+_HASHCHAR=^#
+!IF ![echo !IFNDEF VERSION > rcver.vc] && \\
+    ![for /F "delims=" %V in ('type "$(SQLITE3H)" ^| find "$(_HASHCHAR)define SQLITE_VERSION "') do (echo VERSION = ^^%V >> rcver.vc)] && \\
+    ![echo !ENDIF >> rcver.vc]
+!INCLUDE rcver.vc
+!ENDIF
+
+RESOURCE_VERSION = $(VERSION:^#=)
+RESOURCE_VERSION = $(RESOURCE_VERSION:define=)
+RESOURCE_VERSION = $(RESOURCE_VERSION:SQLITE_VERSION=)
+RESOURCE_VERSION = $(RESOURCE_VERSION:"=)
+RESOURCE_VERSION = $(RESOURCE_VERSION:.=,)
+
+$(LIBRESOBJS):	$(TOP)\sqlite3.rc rcver.vc $(SQLITE3H)
+	echo #ifndef SQLITE_RESOURCE_VERSION > sqlite3rc.h
+	echo #define SQLITE_RESOURCE_VERSION $(RESOURCE_VERSION) >> sqlite3rc.h
+	echo #endif >> sqlite3rc.h
+	$(LTRCOMPILE) -fo $(LIBRESOBJS) -DRC_VERONLY $(TOP)\sqlite3.rc
+}]]
+
+set data [readFile $fromFileName]
+
+regsub -all -- {# <<mark>>\n.*?# <</mark>>\n} \
+    $data "" data
+
+foreach i [lsort [array names blocks]] {
+  regsub -all -- [substVars \
+      {# <<block${i}>>\n.*?# <</block${i}>>\n}] \
+      $data [escapeSubSpec $blocks($i)] data
+}
+
+set data [string map [list " -I\$(TOP)\\src" ""] $data]
+set data [string map [list " /DEF:sqlite3.def" ""] $data]
+set data [string map [list " sqlite3.def" ""] $data]
+set data [string map [list " libtclsqlite3.lib" ""] $data]
+set data [string map [list "\$(TOP)\\src\\" "\$(TOP)\\"] $data]
+
+writeFile $toFileName $data