3
# To build a single huge source file holding all of SQLite (or at
4
# least the core components - the test harness, shell, and TCL
5
# interface are omitted.) first do
9
# The make target above moves all of the source code files into
10
# a subdirectory named "tsrc". (This script expects to find the files
11
# there and will not work if they are not found.) There are a few
12
# generated C code files that are also added to the tsrc directory.
13
# For example, the "parse.c" and "parse.h" files to implement the
14
# the parser are derived from "parse.y" using lemon. And the
15
# "keywordhash.h" files is generated by a program named "mkkeywordhash".
17
# After the "tsrc" directory has been created and populated, run
20
# tclsh mksqlite3c.tcl
22
# The amalgamated SQLite code will be written into sqlite3.c
25
# Begin by reading the "sqlite3.h" header file. Count the number of lines
26
# in this file and extract the version number. That information will be
27
# needed in order to generate the header of the amalgamation.
29
set in [open tsrc/sqlite3.h]
34
if {$line=="" && [eof $in]} break
36
regexp {#define\s+SQLITE_VERSION\s+"(.*)"} $line all VERSION
40
# Open the output file and write a header comment at the beginning
43
set out [open sqlite3.c w]
44
set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
46
{/******************************************************************************
47
** This file is an amalgamation of many separate C source files from SQLite
48
** version $VERSION. By combining all the individual C code files into this
49
** single large file, the entire code can be compiled as a one translation
50
** unit. This allows many compilers to do optimizations that would not be
51
** possible if the files were compiled separately. Performance improvements
52
** of 5% are more are commonly seen when SQLite is compiled as a single
55
** This file is all you need to compile SQLite. To use SQLite in other
56
** programs, you need this file and the "sqlite3.h" header file that defines
57
** the programming interface to the SQLite library. (If you do not have
58
** the "sqlite3.h" header file at hand, you will find a copy in the first
59
** $cnt lines past this header comment.) Additional code files may be
60
** needed if you want a wrapper to interface SQLite with your choice of
61
** programming language. The code for the "sqlite3" command-line shell
62
** is also in a separate file. This file contains only code for the core
65
** This amalgamation was generated on $today.
67
#define SQLITE_AMALGAMATION 1}]
69
# These are the header files used by SQLite. The first time any of these
70
# files are seen in a #include statement in the C code, include the complete
71
# text of the file in-line. The file only needs to be included once.
89
set available_hdr($hdr) 1
91
set available_hdr(sqlite3.h) 0
93
# 78 stars used for comment formatting.
95
{*****************************************************************************}
97
# Insert a comment into the code
99
proc section_comment {text} {
101
set n [string length $text]
102
set nstar [expr {60 - $n}]
103
set stars [string range $s78 0 $nstar]
104
puts $out "/************** $text $stars/"
107
# Read the source file named $filename and write it into the
108
# sqlite3.c output file. If any #include statements are seen,
109
# process them approprately.
111
proc copy_file {filename} {
112
global seen_hdr available_hdr out
113
set tail [file tail $filename]
114
section_comment "Begin file $tail"
115
set in [open $filename r]
118
if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
119
if {[info exists available_hdr($hdr)]} {
120
if {$available_hdr($hdr)} {
121
if {$hdr!="os_common.h"} {
122
set available_hdr($hdr) 0
124
section_comment "Include $hdr in the middle of $tail"
126
section_comment "Continuing where we left off in $tail"
128
} elseif {![info exists seen_hdr($hdr)]} {
132
} elseif {[regexp {^#ifdef __cplusplus} $line]} {
134
} elseif {[regexp {^#line} $line]} {
135
# Skip #line directives.
141
section_comment "End of $tail"
145
# Process the source files. Process files containing commonly
146
# used subroutines first in order to help the compiler find
147
# inlining opportunities.
209
puts $out "#ifdef SQLITE_TEST"
227
copy_file ../sqlite/src/$file
229
puts $out "#endif /* SQLITE_TEST */"
230
puts $out "#ifdef SQLITE_TCL"
231
copy_file ../sqlite/src/tclsqlite.c
232
puts $out "#endif /* SQLITE_TCL */"
added
removed
tool/mksqlite3c.tcl
