#!/usr/bin/tclsh
#
# To build a single huge source file holding all of SQLite (or at
# least the core components - the test harness, shell, and TCL
# interface are omitted.) first do
#
# make target_source
#
# Then run this script
#
# tclsh mkonebigsourcefile.tcl
#
# The combined SQLite source code will be written into sqlite3.c
#
# Open the output file and write a header comment at the beginning
# of the file.
#
set out [open sqlite3.c w]
puts $out \
"/******************************************************************************
** This file is a amalgamation of many separate source files from SQLite. By
** pulling all the source files into this single unified source file, the
** entire code can be compiled as a single translation unit, which allows the
** compiler to do a better job of optimizing.
*/"
# These are the header files used by SQLite. The first time any of these
# files are seen in a #include statement in the C code, include the complete
# text of the file in-line. The file only needs to be included once.
#
foreach hdr {
btree.h
hash.h
keywordhash.h
opcodes.h
os_common.h
os.h
os_os2.h
pager.h
parse.h
sqlite3ext.h
sqlite3.h
sqliteInt.h
vdbe.h
vdbeInt.h
} {
set available_hdr($hdr) 1
}
# 78 stars used for comment formatting.
set s78 \
{*****************************************************************************}
# Insert a comment into the code
#
proc section_comment {text} {
global out s78
set n [string length $text]
set nstar [expr {60 - $n}]
set stars [string range $s78 0 $nstar]
puts $out "/************** $text $stars/"
}
# Read the source file named $filename and write it into the
# sqlite3.c output file. If any #include statements are seen,
# process them approprately.
#
proc copy_file {filename} {
global seen_hdr available_hdr out
set tail [file tail $filename]
section_comment "Begin file $tail"
set in [open $filename r]
while {![eof $in]} {
set line [gets $in]
if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
if {[info exists available_hdr($hdr)]} {
if {$available_hdr($hdr)} {
if {$hdr!="os_common.h"} {
set available_hdr($hdr) 0
}
section_comment "Include $hdr in the middle of $tail"
copy_file tsrc/$hdr
section_comment "Continuing where we left off in $tail"
}
} elseif {![info exists seen_hdr($hdr)]} {
set seen_hdr($hdr) 1
puts $out $line
}
} elseif {[regexp {^#ifdef __cplusplus} $line]} {
puts $out "#if 0"
} elseif {[regexp {^#line} $line]} {
# Skip #line directives.
} else {
puts $out $line
}
}
close $in
section_comment "End of $tail"
}
# Process the source files. Process files containing commonly
# used subroutines first in order to help the compiler find
# inlining opportunities.
#
foreach file {
os.c
printf.c
random.c
utf.c
util.c
hash.c
opcodes.c
os_os2.c
os_unix.c
os_win.c
pager.c
btree.c
vdbefifo.c
vdbemem.c
vdbeaux.c
vdbeapi.c
vdbe.c
expr.c
alter.c
analyze.c
attach.c
auth.c
build.c
callback.c
complete.c
date.c
delete.c
func.c
insert.c
legacy.c
loadext.c
pragma.c
prepare.c
select.c
table.c
trigger.c
update.c
vacuum.c
vtab.c
where.c
parse.c
tokenize.c
main.c
} {
copy_file tsrc/$file
}
if 0 {
puts $out "#ifdef SQLITE_TEST"
foreach file {
test1.c
test2.c
test3.c
test4.c
test5.c
test6.c
test7.c
test8.c
test_async.c
test_autoext.c
test_loadext.c
test_md5.c
test_schema.c
test_server.c
test_tclvar.c
} {
copy_file ../sqlite/src/$file
}
puts $out "#endif /* SQLITE_TEST */"
puts $out "#ifdef SQLITE_TCL"
copy_file ../sqlite/src/tclsqlite.c
puts $out "#endif /* SQLITE_TCL */"
}
close $out