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Issue 13005: Renamed README.google to README.chromium.... (Closed) Base URL: http://src.chromium.org/svn/trunk/src/
Patch Set: Created 12 years ago
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1 This directory contains a partial snapshot of the sqlite library from
2 http://sqlite.org.
3
4 Current version: 3.5.3, released 23-Nov-2007.
5
6 (This was built as 3.4.2 [13-Aug-2007] as described below, with the four
7 intervening patches 4315, 4427, 4546, and 4556 applied by hand.)
8
9 To import a new snapshot of sqlite:
10
11 - Visit http://sqlite.org/download.html and download the latest source
12 distribution.
13 - Unpack the source on a Linux machine.
14 - Change to the source directory and run:
15 $ ./configure --disable-tcl # build headers
16 $ make # build some generated files
17 - Copy the generated .c/.h files from the sqlite directory to this directory,
18 as well as those in src/ and ext/fts2/. Omit files which have been omitted
19 here. Here's an easy way to be sure you get everything:
20 $ cp /path/to/source/*.[ch] . # don't forget subdirs, too
21 $ gvn status | grep -v ^M # print the names of all new files
22 $ mkdir new; mv each new file to new
23 Then rebuild, and if any of the files in new/ are needed, move them
24 back into this directory, add them to the project, and "gvn add" them.
25 - Apply the preload-cache.diff (see below)
26 - Update this README to reflect the new version number.
27
28 Modifications for this release:
29 - I marked all changes I made with "evanm", so you can find them with
30 "grep evanm *".
31 - Most files include sqlite3ext.h with SQLITE_CORE #defined, but two don't:
32 fts2_tokenizer.c and icu.c. Without this #define, the calls in
33 fts2_tokenizer.c try to go through some pointer to the sqlite API instead of
34 calling the functions directly (to work as a loadable module), but then crash
35 (because the other files never initialize that loadable module support). As
36 a hack I #defined it in these files, but it'd be nice to figure out what
37 really ought to happen here (perhaps this file is new and hasn't been tested
38 to verify it works right).
39 - shell_icu.c is a Chrome-specific file used to load our ICU data. shell.c
40 has been modifed to call into shell_icu.c.
41 - fts2_icu.c has a critical bug. U8_NEXT is used over a UTF-16 string. It's repl aced
42 by U16_NEXT (jungshik)
43
44 Patch
45 -----
46 The file preload-cache.diff patch must be applied to add a new function we use
47 to prime the database cache. It allows much faster performance by reading the
48 file in one contiguous operation rather than bringing it in organically, which
49 involves a lot of seeking.
50
51 FTS2 modification
52 -----------------
53 In fts2.c, we added an additional check from fts3 to try to catch some
54 additional problems. In buildTerms on line 3807, we replaced
55 if( iPosition<0 ){
56 with:
57 if( iPosition<0 || pToken == NULL || nTokenBytes == 0 ){
58 It is from this change to sqlite:
59 http://www.sqlite.org/cvstrac/chngview?cn=4514
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