dbindexer->fsindexer, split into its own file

This commit is contained in:
dockes 2009-11-10 18:10:54 +00:00
parent 69dcb93059
commit d14601bde9
7 changed files with 750 additions and 675 deletions

582
src/index/fsindexer.cpp Normal file
View File

@ -0,0 +1,582 @@
#ifndef lint
static char rcsid[] = "@(#$Id: $ (C) 2009 J.F.Dockes";
#endif
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "autoconfig.h"
#endif
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <cstring>
#include <fnmatch.h>
#include <iostream>
#include <list>
#include <map>
#include <algorithm>
#include "pathut.h"
#include "conftree.h"
#include "rclconfig.h"
#include "fstreewalk.h"
#include "rcldb.h"
#include "readfile.h"
#include "indexer.h"
#include "fsindexer.h"
#include "csguess.h"
#include "transcode.h"
#include "debuglog.h"
#include "internfile.h"
#include "smallut.h"
#include "wipedir.h"
#include "fileudi.h"
#ifdef RCL_USE_ASPELL
#include "rclaspell.h"
#endif
// When using extended attributes, we have to use the ctime.
// This is quite an expensive price to pay...
#ifdef RCL_USE_XATTR
#define RCL_STTIME st_ctime
#else
#define RCL_STTIME st_mtime
#endif // RCL_USE_XATTR
#ifndef NO_NAMESPACES
using namespace std;
#endif /* NO_NAMESPACES */
#ifndef deleteZ
#define deleteZ(X) {delete X;X = 0;}
#endif
FsIndexer::~FsIndexer() {
// Maybe clean up temporary directory
if (m_tmpdir.length()) {
wipedir(m_tmpdir);
if (rmdir(m_tmpdir.c_str()) < 0) {
LOGERR(("FsIndexer::~FsIndexer: cannot clear temp dir %s\n",
m_tmpdir.c_str()));
}
}
m_db.close();
}
list<string> FsIndexer::getStemmerNames()
{
return Rcl::Db::getStemmerNames();
}
// Index each directory in the topdirs for a given db
bool FsIndexer::indexTrees(bool resetbefore, list<string> *topdirs)
{
if (!init(resetbefore))
return false;
if (m_updater) {
m_updater->status.reset();
m_updater->status.dbtotdocs = m_db.docCnt();
}
m_walker.setSkippedPaths(m_config->getSkippedPaths());
for (list<string>::const_iterator it = topdirs->begin();
it != topdirs->end(); it++) {
LOGDEB(("FsIndexer::index: Indexing %s into %s\n", it->c_str(),
getDbDir().c_str()));
// Set the current directory in config so that subsequent
// getConfParams() will get local values
m_config->setKeyDir(*it);
// Adjust the "follow symlinks" option
bool follow;
if (m_config->getConfParam("followLinks", &follow) && follow) {
m_walker.setOpts(FsTreeWalker::FtwFollow);
} else {
m_walker.setOpts(FsTreeWalker::FtwOptNone);
}
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
// Set up skipped patterns for this subtree. This probably should be
// done in the directory change code in processone() instead.
m_walker.setSkippedNames(m_config->getSkippedNames());
// Walk the directory tree
if (m_walker.walk(*it, *this) != FsTreeWalker::FtwOk) {
LOGERR(("FsIndexer::index: error while indexing %s: %s\n",
it->c_str(), m_walker.getReason().c_str()));
return false;
}
}
if (m_updater) {
m_updater->status.fn.erase();
m_updater->status.phase = DbIxStatus::DBIXS_PURGE;
m_updater->update();
}
// Get rid of all database entries that don't exist in the
// filesystem anymore.
m_db.purge();
createStemmingDatabases();
createAspellDict();
if (m_updater) {
m_updater->status.phase = DbIxStatus::DBIXS_CLOSING;
m_updater->status.fn.erase();
m_updater->update();
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("FsIndexer::index: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
string missing;
FileInterner::getMissingDescription(missing);
if (!missing.empty()) {
LOGINFO(("FsIndexer::index missing helper program(s):\n%s\n",
missing.c_str()));
}
m_config->storeMissingHelperDesc(missing);
return true;
}
// Create stemming databases. We also remove those which are not
// configured.
bool FsIndexer::createStemmingDatabases()
{
string slangs;
if (m_config->getConfParam("indexstemminglanguages", slangs)) {
list<string> langs;
stringToStrings(slangs, langs);
// Get the list of existing stem dbs from the database (some may have
// been manually created, we just keep those from the config
list<string> dblangs = m_db.getStemLangs();
list<string>::const_iterator it;
for (it = dblangs.begin(); it != dblangs.end(); it++) {
if (find(langs.begin(), langs.end(), *it) == langs.end())
m_db.deleteStemDb(*it);
}
for (it = langs.begin(); it != langs.end(); it++) {
if (m_updater) {
m_updater->status.phase = DbIxStatus::DBIXS_STEMDB;
m_updater->status.fn = *it;
m_updater->update();
}
m_db.createStemDb(*it);
}
}
return true;
}
bool FsIndexer::init(bool resetbefore, bool rdonly)
{
if (!rdonly && (m_tmpdir.empty() || access(m_tmpdir.c_str(), 0) < 0)) {
string reason;
if (!maketmpdir(m_tmpdir, reason)) {
LOGERR(("FsIndexer: cannot create temporary directory: %s\n",
reason.c_str()));
return false;
}
}
Rcl::Db::OpenMode mode = rdonly ? Rcl::Db::DbRO :
resetbefore ? Rcl::Db::DbTrunc : Rcl::Db::DbUpd;
if (!m_db.open(mode)) {
LOGERR(("FsIndexer: error opening database %s\n", getDbDir().c_str()));
return false;
}
return true;
}
bool FsIndexer::createStemDb(const string &lang)
{
if (!init(false, true))
return false;
return m_db.createStemDb(lang);
}
// The language for the aspell dictionary is handled internally by the aspell
// module, either from a configuration variable or the NLS environment.
bool FsIndexer::createAspellDict()
{
LOGDEB2(("FsIndexer::createAspellDict()\n"));
#ifdef RCL_USE_ASPELL
// For the benefit of the real-time indexer, we only initialize
// noaspell from the configuration once. It can then be set to
// true if dictionary generation fails, which avoids retrying
// it forever.
static int noaspell = -12345;
if (noaspell == -12345) {
noaspell = false;
m_config->getConfParam("noaspell", &noaspell);
}
if (noaspell)
return true;
if (!init(false, true))
return false;
Aspell aspell(m_config);
string reason;
if (!aspell.init(reason)) {
LOGERR(("FsIndexer::createAspellDict: aspell init failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
LOGDEB(("FsIndexer::createAspellDict: creating dictionary\n"));
if (!aspell.buildDict(m_db, reason)) {
LOGERR(("FsIndexer::createAspellDict: aspell buildDict failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
#endif
return true;
}
/**
* Index individual files, out of a full tree run. No database purging
*/
bool FsIndexer::indexFiles(const list<string> &filenames)
{
bool called_init = false;
list<string>::const_iterator it;
for (it = filenames.begin(); it != filenames.end(); it++) {
string dir = path_getfather(*it);
m_config->setKeyDir(dir);
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
struct stat stb;
if (lstat(it->c_str(), &stb) != 0) {
LOGERR(("FsIndexer::indexFiles: lstat(%s): %s", it->c_str(),
strerror(errno)));
continue;
}
// If we get to indexing directory names one day, will need to test
// against dbdir here to avoid modification loops (with rclmon).
if (!S_ISREG(stb.st_mode)) {
LOGDEB2(("FsIndexer::indexFiles: %s: not a regular file\n",
it->c_str()));
continue;
}
static string lstdir;
static list<string> skpl;
if (lstdir.compare(dir)) {
LOGDEB(("Recomputing list of skipped names\n"));
skpl = m_config->getSkippedNames();
lstdir = dir;
}
if (!skpl.empty()) {
list<string>::const_iterator skit;
string fn = path_getsimple(*it);
for (skit = skpl.begin(); skit != skpl.end(); skit++) {
if (fnmatch(skit->c_str(), fn.c_str(), 0) == 0) {
LOGDEB(("Skipping [%s] :matches skip list\n", fn.c_str()));
goto skipped;
}
}
}
// Defer opening db until really needed.
if (!called_init) {
if (!init())
return false;
called_init = true;
}
if (processone(*it, &stb, FsTreeWalker::FtwRegular) !=
FsTreeWalker::FtwOk) {
LOGERR(("FsIndexer::indexFiles: processone failed\n"));
return false;
}
skipped:
false; // Need a statement here to make compiler happy ??
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("FsIndexer::indexfiles: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
return true;
}
/** Purge docs for given files out of the database */
bool FsIndexer::purgeFiles(const list<string> &filenames)
{
if (!init())
return false;
list<string>::const_iterator it;
for (it = filenames.begin(); it != filenames.end(); it++) {
string udi;
make_udi(*it, "", udi);
if (!m_db.purgeFile(udi)) {
LOGERR(("FsIndexer::purgeFiles: Database error\n"));
return false;
}
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("FsIndexer::purgefiles: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
return true;
}
// Local fields can be set for fs subtrees in the configuration file
void FsIndexer::localfieldsfromconf()
{
LOGDEB(("FsIndexer::localfieldsfromconf\n"));
m_localfields.clear();
string sfields;
if (!m_config->getConfParam("localfields", sfields))
return;
list<string> lfields;
if (!stringToStrings(sfields, lfields)) {
LOGERR(("FsIndexer::localfieldsfromconf: bad syntax for [%s]\n",
sfields.c_str()));
return;
}
for (list<string>::const_iterator it = lfields.begin();
it != lfields.end(); it++) {
ConfSimple conf(*it, 1, true);
list<string> nmlst = conf.getNames("");
for (list<string>::const_iterator it1 = nmlst.begin();
it1 != nmlst.end(); it1++) {
conf.get(*it1, m_localfields[*it1]);
LOGDEB2(("FsIndexer::localfieldsfromconf: [%s] => [%s]\n",
(*it1).c_str(), m_localfields[*it1].c_str()));
}
}
}
//
void FsIndexer::setlocalfields(Rcl::Doc& doc)
{
for (map<string, string>::const_iterator it = m_localfields.begin();
it != m_localfields.end(); it++) {
// Should local fields override those coming from the document
// ? I think not, but not too sure
if (doc.meta.find(it->second) == doc.meta.end()) {
doc.meta[it->first] = it->second;
}
}
}
/// This method gets called for every file and directory found by the
/// tree walker.
///
/// It checks with the db if the file has changed and needs to be
/// reindexed. If so, it calls internfile() which will identify the
/// file type and call an appropriate handler to convert the document into
/// internal format, which we then add to the database.
///
/// Accent and majuscule handling are performed by the db module when doing
/// the actual indexing work. The Rcl::Doc created by internfile()
/// mostly contains pretty raw utf8 data.
FsTreeWalker::Status
FsIndexer::processone(const std::string &fn, const struct stat *stp,
FsTreeWalker::CbFlag flg)
{
if (m_updater && !m_updater->update()) {
return FsTreeWalker::FtwStop;
}
// If we're changing directories, possibly adjust parameters (set
// the current directory in configuration object)
if (flg == FsTreeWalker::FtwDirEnter ||
flg == FsTreeWalker::FtwDirReturn) {
m_config->setKeyDir(fn);
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
// Adjust local fields from config for this subtree
if (m_havelocalfields)
localfieldsfromconf();
if (flg == FsTreeWalker::FtwDirReturn)
return FsTreeWalker::FtwOk;
}
////////////////////
// Check db up to date ? Doing this before file type
// identification means that, if usesystemfilecommand is switched
// from on to off it may happen that some files which are now
// without mime type will not be purged from the db, resulting
// in possible 'cannot intern file' messages at query time...
// Document signature. This is based on m/ctime and size and used
// for the uptodate check (the value computed here is checked
// against the stored one). Changing the computation forces a full
// reindex of course.
char cbuf[100];
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
string sig = cbuf;
string udi;
make_udi(fn, "", udi);
if (!m_db.needUpdate(udi, sig)) {
LOGDEB(("processone: up to date: %s\n", fn.c_str()));
if (m_updater) {
// Status bar update, abort request etc.
m_updater->status.fn = fn;
if (!m_updater->update()) {
return FsTreeWalker::FtwStop;
}
}
return FsTreeWalker::FtwOk;
}
LOGDEB0(("processone: processing: [%s] %s\n",
displayableBytes(stp->st_size).c_str(), fn.c_str()));
FileInterner interner(fn, stp, m_config, m_tmpdir, FileInterner::FIF_none);
// File name transcoded to utf8 for indexation.
string charset = m_config->getDefCharset(true);
// If this fails, the file name won't be indexed, no big deal
// Note that we used to do the full path here, but I ended up believing
// that it made more sense to use only the file name
string utf8fn; int ercnt;
if (!transcode(path_getsimple(fn), utf8fn, charset, "UTF-8", &ercnt)) {
LOGERR(("processone: fn transcode failure from [%s] to UTF-8: %s\n",
charset.c_str(), path_getsimple(fn).c_str()));
} else if (ercnt) {
LOGDEB(("processone: fn transcode %d errors from [%s] to UTF-8: %s\n",
ercnt, charset.c_str(), path_getsimple(fn).c_str()));
}
LOGDEB2(("processone: fn transcoded from [%s] to [%s] (%s->%s)\n",
path_getsimple(fn).c_str(), utf8fn.c_str(), charset.c_str(),
"UTF-8"));
string parent_udi;
make_udi(fn, "", parent_udi);
Rcl::Doc doc;
const string plus("+");
char ascdate[20];
sprintf(ascdate, "%ld", long(stp->st_mtime));
FileInterner::Status fis = FileInterner::FIAgain;
bool hadNullIpath = false;
while (fis == FileInterner::FIAgain) {
doc.erase();
string ipath;
fis = interner.internfile(doc, ipath);
// Index at least the file name even if there was an error.
// We'll change the signature to ensure that the indexing will
// be retried every time.
// Internal access path for multi-document files
if (ipath.empty())
hadNullIpath = true;
else
doc.ipath = ipath;
// Set file name, mod time and url if not done by filter
if (doc.fmtime.empty())
doc.fmtime = ascdate;
if (doc.url.empty())
doc.url = string("file://") + fn;
if (doc.utf8fn.empty())
doc.utf8fn = utf8fn;
char cbuf[100];
sprintf(cbuf, "%ld", (long)stp->st_size);
doc.fbytes = cbuf;
// Document signature for up to date checks: concatenate
// m/ctime and size. Looking for changes only, no need to
// parseback so no need for reversible formatting. Also set,
// but never used, for subdocs.
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
doc.sig = cbuf;
// If there was an error, ensure indexing will be
// retried. This is for the once missing, later installed
// filter case. It can make indexing much slower (if there are
// myriads of such files, the ext script is executed for them
// and fails every time)
if (fis == FileInterner::FIError) {
doc.sig += plus;
}
// Possibly add fields from local config
if (m_havelocalfields)
setlocalfields(doc);
// Add document to database. If there is an ipath, add it as a children
// of the file document.
string udi;
make_udi(fn, ipath, udi);
if (!m_db.addOrUpdate(udi, ipath.empty() ? "" : parent_udi, doc))
return FsTreeWalker::FtwError;
// Tell what we are doing and check for interrupt request
if (m_updater) {
++(m_updater->status.docsdone);
m_updater->status.fn = fn;
if (!ipath.empty())
m_updater->status.fn += "|" + ipath;
if (!m_updater->update()) {
return FsTreeWalker::FtwStop;
}
}
}
// If we had no instance with a null ipath, we create an empty
// document to stand for the file itself, to be used mainly for up
// to date checks. Typically this happens for an mbox file.
if (hadNullIpath == false) {
LOGDEB1(("Creating empty doc for file\n"));
Rcl::Doc fileDoc;
fileDoc.fmtime = ascdate;
fileDoc.utf8fn = utf8fn;
fileDoc.mimetype = interner.getMimetype();
fileDoc.url = string("file://") + fn;
char cbuf[100];
sprintf(cbuf, "%ld", (long)stp->st_size);
fileDoc.fbytes = cbuf;
// Document signature for up to date checks.
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
fileDoc.sig = cbuf;
if (!m_db.addOrUpdate(parent_udi, "", fileDoc))
return FsTreeWalker::FtwError;
}
return FsTreeWalker::FtwOk;
}

108
src/index/fsindexer.h Normal file
View File

@ -0,0 +1,108 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _fsindexer_h_included_
#define _fsindexer_h_included_
/* @(#$Id: $ (C) 2009 J.F.Dockes */
#include "fstreewalk.h"
#include "rcldb.h"
class DbIxStatusUpdater;
/** Index selected parts of the file system
Tree indexing: we inherits FsTreeWalkerCB so that, the processone()
method is called by the file-system tree walk code for each file and
directory. We keep all state needed while indexing, and finally call
the methods to purge the db of stale entries and create the stemming
databases.
Single file(s) indexing: there are also calls to index or purge lists of files.
No database purging or stem db updating in this case.
*/
class FsIndexer : public FsTreeWalkerCB {
public:
/** Constructor does nothing but store parameters
*
* @param cnf Configuration data
* @param updfunc Status updater callback
*/
FsIndexer(RclConfig *cnf, DbIxStatusUpdater *updfunc = 0)
: m_config(cnf), m_db(cnf), m_updater(updfunc)
{
m_havelocalfields = m_config->hasNameAnywhere("localfields");
}
virtual ~FsIndexer();
/** Top level file system tree index method for updating a
given database.
The list is supposed to have all the filename space for the
db, and we shall purge entries for non-existing files at the
end. We create the temporary directory, open the database,
then call a file system walk for each top-level directory.
When walking is done, we create the stem databases and close
the main db.
*/
bool indexTrees(bool resetbefore, std::list<string> *topdirs);
/** Index a list of files. No db cleaning or stemdb updating */
bool indexFiles(const std::list<string> &files);
/** Purge a list of files. */
bool purgeFiles(const std::list<string> &files);
/** Stemming reset to config: create needed, delete unconfigured */
bool createStemmingDatabases();
/** Create stem database for given language */
bool createStemDb(const string &lang);
/** Create misspelling expansion dictionary if aspell i/f is available */
bool createAspellDict();
/** Tree walker callback method */
FsTreeWalker::Status
processone(const string &, const struct stat *, FsTreeWalker::CbFlag);
/** Return my db dir */
string getDbDir() {return m_config->getDbDir();}
/** List possible stemmer names */
static list<string> getStemmerNames();
private:
FsTreeWalker m_walker;
RclConfig *m_config;
Rcl::Db m_db;
string m_tmpdir;
DbIxStatusUpdater *m_updater;
// The configuration can set attribute fields to be inherited by
// all files in a file system area. Ie: set "apptag = thunderbird"
// inside ~/.thunderbird. The boolean is set at init to avoid
// further wasteful processing if no local fields are set.
bool m_havelocalfields;
map<string, string> m_localfields;
bool init(bool rst = false, bool rdonly = false);
void localfieldsfromconf();
void setlocalfields(Rcl::Doc& doc);
};
#endif /* _fsindexer_h_included_ */

View File

@ -25,569 +25,13 @@ static char rcsid[] = "@(#$Id: indexer.cpp,v 1.71 2008-12-17 08:01:40 dockes Exp
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <cstring>
#include <fnmatch.h>
#include <iostream>
#include <list>
#include <map>
#include <algorithm>
#include "pathut.h"
#include "conftree.h"
#include "rclconfig.h"
#include "fstreewalk.h"
#include "rcldb.h"
#include "readfile.h"
#include "indexer.h"
#include "csguess.h"
#include "transcode.h"
#include "debuglog.h"
#include "internfile.h"
#include "smallut.h"
#include "wipedir.h"
#include "fileudi.h"
#ifdef RCL_USE_ASPELL
#include "rclaspell.h"
#endif
// When using extended attributes, we have to use the ctime.
// This is quite an expensive price to pay...
#ifdef RCL_USE_XATTR
#define RCL_STTIME st_ctime
#else
#define RCL_STTIME st_mtime
#endif // RCL_USE_XATTR
#ifndef NO_NAMESPACES
using namespace std;
#endif /* NO_NAMESPACES */
#ifndef deleteZ
#define deleteZ(X) {delete X;X = 0;}
#endif
DbIndexer::~DbIndexer() {
// Maybe clean up temporary directory
if (m_tmpdir.length()) {
wipedir(m_tmpdir);
if (rmdir(m_tmpdir.c_str()) < 0) {
LOGERR(("DbIndexer::~DbIndexer: cannot clear temp dir %s\n",
m_tmpdir.c_str()));
}
}
m_db.close();
}
list<string> DbIndexer::getStemmerNames()
{
return Rcl::Db::getStemmerNames();
}
// Index each directory in the topdirs for a given db
bool DbIndexer::indexDb(bool resetbefore, list<string> *topdirs)
{
if (!init(resetbefore))
return false;
if (m_updater) {
m_updater->status.reset();
m_updater->status.dbtotdocs = m_db.docCnt();
}
m_walker.setSkippedPaths(m_config->getSkippedPaths());
for (list<string>::const_iterator it = topdirs->begin();
it != topdirs->end(); it++) {
LOGDEB(("DbIndexer::index: Indexing %s into %s\n", it->c_str(),
getDbDir().c_str()));
// Set the current directory in config so that subsequent
// getConfParams() will get local values
m_config->setKeyDir(*it);
// Adjust the "follow symlinks" option
bool follow;
if (m_config->getConfParam("followLinks", &follow) && follow) {
m_walker.setOpts(FsTreeWalker::FtwFollow);
} else {
m_walker.setOpts(FsTreeWalker::FtwOptNone);
}
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
// Set up skipped patterns for this subtree. This probably should be
// done in the directory change code in processone() instead.
m_walker.setSkippedNames(m_config->getSkippedNames());
// Walk the directory tree
if (m_walker.walk(*it, *this) != FsTreeWalker::FtwOk) {
LOGERR(("DbIndexer::index: error while indexing %s: %s\n",
it->c_str(), m_walker.getReason().c_str()));
return false;
}
}
if (m_updater) {
m_updater->status.fn.erase();
m_updater->status.phase = DbIxStatus::DBIXS_PURGE;
m_updater->update();
}
// Get rid of all database entries that don't exist in the
// filesystem anymore.
m_db.purge();
createStemmingDatabases();
createAspellDict();
if (m_updater) {
m_updater->status.phase = DbIxStatus::DBIXS_CLOSING;
m_updater->status.fn.erase();
m_updater->update();
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("DbIndexer::index: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
string missing;
FileInterner::getMissingDescription(missing);
if (!missing.empty()) {
LOGINFO(("DbIndexer::index missing helper program(s):\n%s\n",
missing.c_str()));
}
m_config->storeMissingHelperDesc(missing);
return true;
}
// Create stemming databases. We also remove those which are not
// configured.
bool DbIndexer::createStemmingDatabases()
{
string slangs;
if (m_config->getConfParam("indexstemminglanguages", slangs)) {
list<string> langs;
stringToStrings(slangs, langs);
// Get the list of existing stem dbs from the database (some may have
// been manually created, we just keep those from the config
list<string> dblangs = m_db.getStemLangs();
list<string>::const_iterator it;
for (it = dblangs.begin(); it != dblangs.end(); it++) {
if (find(langs.begin(), langs.end(), *it) == langs.end())
m_db.deleteStemDb(*it);
}
for (it = langs.begin(); it != langs.end(); it++) {
if (m_updater) {
m_updater->status.phase = DbIxStatus::DBIXS_STEMDB;
m_updater->status.fn = *it;
m_updater->update();
}
m_db.createStemDb(*it);
}
}
return true;
}
bool DbIndexer::init(bool resetbefore, bool rdonly)
{
if (!rdonly && (m_tmpdir.empty() || access(m_tmpdir.c_str(), 0) < 0)) {
string reason;
if (!maketmpdir(m_tmpdir, reason)) {
LOGERR(("DbIndexer: cannot create temporary directory: %s\n",
reason.c_str()));
return false;
}
}
Rcl::Db::OpenMode mode = rdonly ? Rcl::Db::DbRO :
resetbefore ? Rcl::Db::DbTrunc : Rcl::Db::DbUpd;
if (!m_db.open(mode)) {
LOGERR(("DbIndexer: error opening database %s\n", getDbDir().c_str()));
return false;
}
return true;
}
bool DbIndexer::createStemDb(const string &lang)
{
if (!init(false, true))
return false;
return m_db.createStemDb(lang);
}
// The language for the aspell dictionary is handled internally by the aspell
// module, either from a configuration variable or the NLS environment.
bool DbIndexer::createAspellDict()
{
LOGDEB2(("DbIndexer::createAspellDict()\n"));
#ifdef RCL_USE_ASPELL
// For the benefit of the real-time indexer, we only initialize
// noaspell from the configuration once. It can then be set to
// true if dictionary generation fails, which avoids retrying
// it forever.
static int noaspell = -12345;
if (noaspell == -12345) {
noaspell = false;
m_config->getConfParam("noaspell", &noaspell);
}
if (noaspell)
return true;
if (!init(false, true))
return false;
Aspell aspell(m_config);
string reason;
if (!aspell.init(reason)) {
LOGERR(("DbIndexer::createAspellDict: aspell init failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
LOGDEB(("DbIndexer::createAspellDict: creating dictionary\n"));
if (!aspell.buildDict(m_db, reason)) {
LOGERR(("DbIndexer::createAspellDict: aspell buildDict failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
#endif
return true;
}
/**
* Index individual files, out of a full tree run. No database purging
*/
bool DbIndexer::indexFiles(const list<string> &filenames)
{
bool called_init = false;
list<string>::const_iterator it;
for (it = filenames.begin(); it != filenames.end(); it++) {
string dir = path_getfather(*it);
m_config->setKeyDir(dir);
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
struct stat stb;
if (lstat(it->c_str(), &stb) != 0) {
LOGERR(("DbIndexer::indexFiles: lstat(%s): %s", it->c_str(),
strerror(errno)));
continue;
}
// If we get to indexing directory names one day, will need to test
// against dbdir here to avoid modification loops (with rclmon).
if (!S_ISREG(stb.st_mode)) {
LOGDEB2(("DbIndexer::indexFiles: %s: not a regular file\n",
it->c_str()));
continue;
}
static string lstdir;
static list<string> skpl;
if (lstdir.compare(dir)) {
LOGDEB(("Recomputing list of skipped names\n"));
skpl = m_config->getSkippedNames();
lstdir = dir;
}
if (!skpl.empty()) {
list<string>::const_iterator skit;
string fn = path_getsimple(*it);
for (skit = skpl.begin(); skit != skpl.end(); skit++) {
if (fnmatch(skit->c_str(), fn.c_str(), 0) == 0) {
LOGDEB(("Skipping [%s] :matches skip list\n", fn.c_str()));
goto skipped;
}
}
}
// Defer opening db until really needed.
if (!called_init) {
if (!init())
return false;
called_init = true;
}
if (processone(*it, &stb, FsTreeWalker::FtwRegular) !=
FsTreeWalker::FtwOk) {
LOGERR(("DbIndexer::indexFiles: processone failed\n"));
return false;
}
skipped:
false; // Need a statement here to make compiler happy ??
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("DbIndexer::indexfiles: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
return true;
}
/** Purge docs for given files out of the database */
bool DbIndexer::purgeFiles(const list<string> &filenames)
{
if (!init())
return false;
list<string>::const_iterator it;
for (it = filenames.begin(); it != filenames.end(); it++) {
string udi;
make_udi(*it, "", udi);
if (!m_db.purgeFile(udi)) {
LOGERR(("DbIndexer::purgeFiles: Database error\n"));
return false;
}
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("DbIndexer::purgefiles: error closing database in %s\n",
getDbDir().c_str()));
return false;
}
return true;
}
// Local fields can be set for fs subtrees in the configuration file
void DbIndexer::localfieldsfromconf()
{
LOGDEB(("DbIndexer::localfieldsfromconf\n"));
m_localfields.clear();
string sfields;
if (!m_config->getConfParam("localfields", sfields))
return;
list<string> lfields;
if (!stringToStrings(sfields, lfields)) {
LOGERR(("DbIndexer::localfieldsfromconf: bad syntax for [%s]\n",
sfields.c_str()));
return;
}
for (list<string>::const_iterator it = lfields.begin();
it != lfields.end(); it++) {
ConfSimple conf(*it, 1, true);
list<string> nmlst = conf.getNames("");
for (list<string>::const_iterator it1 = nmlst.begin();
it1 != nmlst.end(); it1++) {
conf.get(*it1, m_localfields[*it1]);
LOGDEB2(("DbIndexer::localfieldsfromconf: [%s] => [%s]\n",
(*it1).c_str(), m_localfields[*it1].c_str()));
}
}
}
//
void DbIndexer::setlocalfields(Rcl::Doc& doc)
{
for (map<string, string>::const_iterator it = m_localfields.begin();
it != m_localfields.end(); it++) {
// Should local fields override those coming from the document
// ? I think not, but not too sure
if (doc.meta.find(it->second) == doc.meta.end()) {
doc.meta[it->first] = it->second;
}
}
}
/// This method gets called for every file and directory found by the
/// tree walker.
///
/// It checks with the db if the file has changed and needs to be
/// reindexed. If so, it calls internfile() which will identify the
/// file type and call an appropriate handler to convert the document into
/// internal format, which we then add to the database.
///
/// Accent and majuscule handling are performed by the db module when doing
/// the actual indexing work. The Rcl::Doc created by internfile()
/// mostly contains pretty raw utf8 data.
FsTreeWalker::Status
DbIndexer::processone(const std::string &fn, const struct stat *stp,
FsTreeWalker::CbFlag flg)
{
if (m_updater && !m_updater->update()) {
return FsTreeWalker::FtwStop;
}
// If we're changing directories, possibly adjust parameters (set
// the current directory in configuration object)
if (flg == FsTreeWalker::FtwDirEnter ||
flg == FsTreeWalker::FtwDirReturn) {
m_config->setKeyDir(fn);
int abslen;
if (m_config->getConfParam("idxabsmlen", &abslen))
m_db.setAbstractParams(abslen, -1, -1);
// Adjust local fields from config for this subtree
if (m_havelocalfields)
localfieldsfromconf();
if (flg == FsTreeWalker::FtwDirReturn)
return FsTreeWalker::FtwOk;
}
////////////////////
// Check db up to date ? Doing this before file type
// identification means that, if usesystemfilecommand is switched
// from on to off it may happen that some files which are now
// without mime type will not be purged from the db, resulting
// in possible 'cannot intern file' messages at query time...
// Document signature. This is based on m/ctime and size and used
// for the uptodate check (the value computed here is checked
// against the stored one). Changing the computation forces a full
// reindex of course.
char cbuf[100];
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
string sig = cbuf;
string udi;
make_udi(fn, "", udi);
if (!m_db.needUpdate(udi, sig)) {
LOGDEB(("processone: up to date: %s\n", fn.c_str()));
if (m_updater) {
// Status bar update, abort request etc.
m_updater->status.fn = fn;
if (!m_updater->update()) {
return FsTreeWalker::FtwStop;
}
}
return FsTreeWalker::FtwOk;
}
LOGDEB0(("processone: processing: [%s] %s\n",
displayableBytes(stp->st_size).c_str(), fn.c_str()));
FileInterner interner(fn, stp, m_config, m_tmpdir, FileInterner::FIF_none);
// File name transcoded to utf8 for indexation.
string charset = m_config->getDefCharset(true);
// If this fails, the file name won't be indexed, no big deal
// Note that we used to do the full path here, but I ended up believing
// that it made more sense to use only the file name
string utf8fn; int ercnt;
if (!transcode(path_getsimple(fn), utf8fn, charset, "UTF-8", &ercnt)) {
LOGERR(("processone: fn transcode failure from [%s] to UTF-8: %s\n",
charset.c_str(), path_getsimple(fn).c_str()));
} else if (ercnt) {
LOGDEB(("processone: fn transcode %d errors from [%s] to UTF-8: %s\n",
ercnt, charset.c_str(), path_getsimple(fn).c_str()));
}
LOGDEB2(("processone: fn transcoded from [%s] to [%s] (%s->%s)\n",
path_getsimple(fn).c_str(), utf8fn.c_str(), charset.c_str(),
"UTF-8"));
string parent_udi;
make_udi(fn, "", parent_udi);
Rcl::Doc doc;
const string plus("+");
char ascdate[20];
sprintf(ascdate, "%ld", long(stp->st_mtime));
FileInterner::Status fis = FileInterner::FIAgain;
bool hadNullIpath = false;
while (fis == FileInterner::FIAgain) {
doc.erase();
string ipath;
fis = interner.internfile(doc, ipath);
// Index at least the file name even if there was an error.
// We'll change the signature to ensure that the indexing will
// be retried every time.
// Internal access path for multi-document files
if (ipath.empty())
hadNullIpath = true;
else
doc.ipath = ipath;
// Set file name, mod time and url if not done by filter
if (doc.fmtime.empty())
doc.fmtime = ascdate;
if (doc.url.empty())
doc.url = string("file://") + fn;
if (doc.utf8fn.empty())
doc.utf8fn = utf8fn;
char cbuf[100];
sprintf(cbuf, "%ld", (long)stp->st_size);
doc.fbytes = cbuf;
// Document signature for up to date checks: concatenate
// m/ctime and size. Looking for changes only, no need to
// parseback so no need for reversible formatting. Also set,
// but never used, for subdocs.
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
doc.sig = cbuf;
// If there was an error, ensure indexing will be
// retried. This is for the once missing, later installed
// filter case. It can make indexing much slower (if there are
// myriads of such files, the ext script is executed for them
// and fails every time)
if (fis == FileInterner::FIError) {
doc.sig += plus;
}
// Possibly add fields from local config
if (m_havelocalfields)
setlocalfields(doc);
// Add document to database. If there is an ipath, add it as a children
// of the file document.
string udi;
make_udi(fn, ipath, udi);
if (!m_db.addOrUpdate(udi, ipath.empty() ? "" : parent_udi, doc))
return FsTreeWalker::FtwError;
// Tell what we are doing and check for interrupt request
if (m_updater) {
++(m_updater->status.docsdone);
m_updater->status.fn = fn;
if (!ipath.empty())
m_updater->status.fn += "|" + ipath;
if (!m_updater->update()) {
return FsTreeWalker::FtwStop;
}
}
}
// If we had no instance with a null ipath, we create an empty
// document to stand for the file itself, to be used mainly for up
// to date checks. Typically this happens for an mbox file.
if (hadNullIpath == false) {
LOGDEB1(("Creating empty doc for file\n"));
Rcl::Doc fileDoc;
fileDoc.fmtime = ascdate;
fileDoc.utf8fn = utf8fn;
fileDoc.mimetype = interner.getMimetype();
fileDoc.url = string("file://") + fn;
char cbuf[100];
sprintf(cbuf, "%ld", (long)stp->st_size);
fileDoc.fbytes = cbuf;
// Document signature for up to date checks.
sprintf(cbuf, "%ld%ld", (long)stp->st_size, (long)stp->RCL_STTIME);
fileDoc.sig = cbuf;
if (!m_db.addOrUpdate(parent_udi, "", fileDoc))
return FsTreeWalker::FtwError;
}
return FsTreeWalker::FtwOk;
}
////////////////////////////////////////////////////////////////////////////
// ConIndexer methods: ConfIndexer is the top-level object, that could
// in theory index multiple directories to multiple databases. In practise we
// have a single database per configuration.
#include "indexer.h"
ConfIndexer::~ConfIndexer()
{
deleteZ(m_dbindexer);
deleteZ(m_fsindexer);
}
bool ConfIndexer::index(bool resetbefore)
@ -634,13 +78,13 @@ bool ConfIndexer::index(bool resetbefore)
// The dbmap now has dbdir as key and directory lists as values.
// Index each directory group in turn
for (dbit = dbmap.begin(); dbit != dbmap.end(); dbit++) {
m_dbindexer = new DbIndexer(m_config, m_updater);
if (!m_dbindexer->indexDb(resetbefore, &dbit->second)) {
deleteZ(m_dbindexer);
m_fsindexer = new FsIndexer(m_config, m_updater);
if (!m_fsindexer->indexTrees(resetbefore, &dbit->second)) {
deleteZ(m_fsindexer);
m_reason = "Failed indexing in " + dbit->first;
return false;
}
deleteZ(m_dbindexer);
deleteZ(m_fsindexer);
}
return true;
}

View File

@ -29,8 +29,7 @@ using std::map;
#endif
#include "rclconfig.h"
#include "fstreewalk.h"
#include "rcldb.h"
#include "fsindexer.h"
/* Forward decl for lower level indexing object */
class DbIndexer;
@ -71,7 +70,7 @@ class ConfIndexer {
public:
enum runStatus {IndexerOk, IndexerError};
ConfIndexer(RclConfig *cnf, DbIxStatusUpdater *updfunc = 0)
: m_config(cnf), m_dbindexer(0), m_updater(updfunc)
: m_config(cnf), m_fsindexer(0), m_updater(updfunc)
{}
virtual ~ConfIndexer();
/** Worker function: doe the actual indexing */
@ -79,96 +78,9 @@ class ConfIndexer {
const string &getReason() {return m_reason;}
private:
RclConfig *m_config;
DbIndexer *m_dbindexer; // Object to process directories for a given db
FsIndexer *m_fsindexer; // Object to process directories for a given db
DbIxStatusUpdater *m_updater;
string m_reason;
};
/** Index things into one database
Tree indexing: we inherits FsTreeWalkerCB so that, the processone()
method is called by the file-system tree walk code for each file and
directory. We keep all state needed while indexing, and finally call
the methods to purge the db of stale entries and create the stemming
databases.
Single file(s) indexing: no database purging or stem db updating.
*/
class DbIndexer : public FsTreeWalkerCB {
public:
/** Constructor does nothing but store parameters
*
* @param cnf Configuration data
* @param updfunc Status updater callback
*/
DbIndexer(RclConfig *cnf, DbIxStatusUpdater *updfunc = 0)
: m_config(cnf), m_db(cnf), m_updater(updfunc)
{
m_havelocalfields = m_config->hasNameAnywhere("localfields");
}
virtual ~DbIndexer();
/** Top level file system tree index method for updating a
given database.
The list is supposed to have all the filename space for the
db, and we shall purge entries for non-existing files at the
end. We create the temporary directory, open the database,
then call a file system walk for each top-level directory.
When walking is done, we create the stem databases and close
the main db.
*/
bool indexDb(bool resetbefore, std::list<string> *topdirs);
/** Index a list of files. No db cleaning or stemdb updating */
bool indexFiles(const std::list<string> &files);
/** Purge a list of files. */
bool purgeFiles(const std::list<string> &files);
/** Stemming reset to config: create needed, delete unconfigured */
bool createStemmingDatabases();
/** Create stem database for given language */
bool createStemDb(const string &lang);
/** Create misspelling expansion dictionary if aspell i/f is available */
bool createAspellDict();
/** Tree walker callback method */
FsTreeWalker::Status
processone(const string &, const struct stat *, FsTreeWalker::CbFlag);
/** Return my db dir */
string getDbDir() {return m_config->getDbDir();}
/** List possible stemmer names */
static list<string> getStemmerNames();
private:
FsTreeWalker m_walker;
RclConfig *m_config;
Rcl::Db m_db;
string m_tmpdir;
DbIxStatusUpdater *m_updater;
// The configuration can set attribute fields to be inherited by
// all files in a file system area. Ie: set "apptag = thunderbird"
// inside ~/.thunderbird. The boolean is set at init to avoid
// further wasteful processing if no local fields are set.
bool m_havelocalfields;
map<string, string> m_localfields;
bool init(bool rst = false, bool rdonly = false);
void localfieldsfromconf();
void setlocalfields(Rcl::Doc& doc);
};
/** Helper methods in recollindex.cpp for initial checks/setup to index
* a list of files (either from the monitor or the command line) */
extern bool indexfiles(RclConfig *config, const list<string> &filenames);
extern bool purgefiles(RclConfig *config, const list<string> &filenames);
extern bool createAuxDbs(RclConfig *config);
#endif /* _INDEXER_H_INCLUDED_ */

View File

@ -39,7 +39,7 @@ static char rcsid[] = "@(#$Id: rclmonprc.cpp,v 1.14 2008-11-18 13:25:48 dockes E
#include "debuglog.h"
#include "rclmon.h"
#include "debuglog.h"
#include "indexer.h"
#include "recollindex.h"
#include "pathut.h"
#include "x11mon.h"
@ -168,8 +168,6 @@ RclConfig *RclMonEventQueue::getConfig()
return m_data->m_config;
}
extern int stopindexing;
bool RclMonEventQueue::ok()
{
if (m_data == 0) {

View File

@ -42,16 +42,18 @@ using namespace std;
#include "cancelcheck.h"
#include "rcldb.h"
#include "beaglequeue.h"
#include "recollindex.h"
#include "fsindexer.h"
// Globals for atexit cleanup
static ConfIndexer *confindexer;
static DbIndexer *dbindexer;
static FsIndexer *fsindexer;
// This is set as an atexit routine,
static void cleanup()
{
deleteZ(confindexer);
deleteZ(dbindexer);
deleteZ(fsindexer);
}
// Global stop request flag. This is checked in a number of place in the
@ -79,11 +81,11 @@ static void sigcleanup(int sig)
stopindexing = 1;
}
static bool makeDbIndexer(RclConfig *config)
static bool makeFsIndexer(RclConfig *config)
{
if (!dbindexer)
dbindexer = new DbIndexer(config, &updater);
return dbindexer ? true : false;
if (!fsindexer)
fsindexer = new FsIndexer(config, &updater);
return fsindexer ? true : false;
}
// The list of top directories/files wont change during program run,
@ -95,7 +97,7 @@ static list<string> o_tdl;
//
// This is called either from the command line or from the monitor. In
// this case we're called repeatedly in the same process, and the
// dbIndexer is only created once by makeDbIndexer (but the db is
// fsindexer is only created once by makeFsIndexer (but the db is
// flushed anyway)
bool indexfiles(RclConfig *config, const list<string> &filenames)
{
@ -139,10 +141,10 @@ bool indexfiles(RclConfig *config, const list<string> &filenames)
// go:
config->setKeyDir(path_getfather(*myfiles.begin()));
if (!makeDbIndexer(config))
if (!makeFsIndexer(config))
return false;
return dbindexer->indexFiles(myfiles);
return fsindexer->indexFiles(myfiles);
}
// Delete a list of files. Same comments about call contexts as indexfiles.
@ -173,21 +175,21 @@ bool purgefiles(RclConfig *config, const list<string> &filenames)
// go:
config->setKeyDir(path_getfather(*myfiles.begin()));
if (!makeDbIndexer(config))
if (!makeFsIndexer(config))
return false;
return dbindexer->purgeFiles(myfiles);
return fsindexer->purgeFiles(myfiles);
}
// Create stemming and spelling databases
bool createAuxDbs(RclConfig *config)
{
if (!makeDbIndexer(config))
if (!makeFsIndexer(config))
return false;
if (!dbindexer->createStemmingDatabases())
if (!fsindexer->createStemmingDatabases())
return false;
if (!dbindexer->createAspellDict())
if (!fsindexer->createAspellDict())
return false;
return true;
@ -196,9 +198,9 @@ bool createAuxDbs(RclConfig *config)
// Create additional stem database
static bool createstemdb(RclConfig *config, const string &lang)
{
if (!makeDbIndexer(config))
if (!makeFsIndexer(config))
return false;
return dbindexer->createStemDb(lang);
return fsindexer->createStemDb(lang);
}
static const char *thisprog;
@ -352,7 +354,7 @@ int main(int argc, const char **argv)
} else if (op_flags & OPT_l) {
if (argc != 0)
Usage();
list<string> stemmers = DbIndexer::getStemmerNames();
list<string> stemmers = FsIndexer::getStemmerNames();
for (list<string>::const_iterator it = stemmers.begin();
it != stemmers.end(); it++) {
cout << *it << endl;
@ -395,9 +397,9 @@ int main(int argc, const char **argv)
#ifdef RCL_USE_ASPELL
} else if (op_flags & OPT_S) {
if (!makeDbIndexer(config))
if (!makeFsIndexer(config))
exit(1);
exit(!dbindexer->createAspellDict());
exit(!fsindexer->createAspellDict());
#endif // ASPELL
} else if (op_flags & OPT_b) {
BeagleQueueIndexer beagler(config);

29
src/index/recollindex.h Normal file
View File

@ -0,0 +1,29 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _recollindex_h_included_
#define _recollindex_h_included_
/* @(#$Id: $ (C) 2009 J.F.Dockes */
/** Helper methods in recollindex.cpp for initial checks/setup to index
* a list of files (either from the monitor or the command line) */
extern bool indexfiles(RclConfig *config, const list<string> &filenames);
extern bool purgefiles(RclConfig *config, const list<string> &filenames);
extern bool createAuxDbs(RclConfig *config);
extern int stopindexing;
#endif /* _recollindex_h_included_ */