GUI directory side filter: compute the directories from the index, not the FS tree, so that things work with external indexes

src/testmains/Makefile.am

@@ -39,7 +39,7 @@ AM_CPPFLAGS = -Wall -Wno-unused -std=c++11 \
     $(DEFS)
 
 noinst_PROGRAMS = plaintorich textsplit fstreewalk rclconfig hldata unac mbox \
-    circache wipedir mimetype fileudi x11mon trqrstore ecrontab
+    circache wipedir mimetype fileudi x11mon trqrstore ecrontab rcldb
 
 ecrontab_SOURCES = trecrontab.cpp
 ecrontab_LDADD = ../librecoll.la
@@ -65,6 +65,9 @@ mimetype_LDADD = ../librecoll.la
 rclconfig_SOURCES = trrclconfig.cpp
 rclconfig_LDADD = ../librecoll.la
 
+rcldb_SOURCES = trrcldb.cpp
+rcldb_LDADD = ../librecoll.la
+
 textsplit_SOURCES = trtextsplit.cpp
 textsplit_LDADD = ../librecoll.la
 

src/testmains/trrcldb.cpp

@@ -0,0 +1,131 @@
+/* Copyright (C) 2022-2022 J.F.Dockes
+ *
+ * License: GPL 2.1
+ *
+ * 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 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <string>
+#include <iostream>
+#include <set>
+#include <getopt.h>
+#include <malloc.h>
+#include <unistd.h>
+
+#include "rclinit.h"
+#include "rclconfig.h"
+#include "rcldb.h"
+#include "pathut.h"
+#include "smallut.h"
+#include "rclutil.h"
+#include "log.h"
+
+static std::map<std::string, int> options {
+    {"dirlist", 0},
+};
+
+static char *thisprog;
+static void Usage(FILE *fp = stderr)
+{
+    string sopts;
+    for (const auto& opt: options) {
+        sopts += "--" + opt.first + "\n";
+    }
+    fprintf(fp, "%s: usage: %s\n%s", thisprog, thisprog, sopts.c_str());
+    exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+    thisprog = *argv;
+    std::vector<struct option> long_options;
+
+    for (auto& entry : options) {
+        struct option opt;
+        opt.name = entry.first.c_str();
+        opt.has_arg = 0;
+        opt.flag = &entry.second;
+        opt.val = 1;
+        long_options.push_back(opt);
+    }
+    long_options.push_back({0, 0, 0, 0});
+
+    std::string confdir;
+    std::string *argcnf{nullptr};
+    int opt;
+    while ((opt = getopt_long(argc, argv, "c:", &long_options[0], nullptr)) != -1) {
+        switch (opt) {
+        case 'c':
+            confdir = optarg;
+            argcnf = &confdir;
+            break;
+        case 0:
+            break;
+        default:
+            Usage();
+        }
+    }
+#if 0
+    for (const auto& e : options) {
+        std::cerr << e.first << " -> " << e.second << "\n";
+    }
+#endif
+
+    if (options["dirlist"]) {
+        std::string reason;
+        RclConfig *rclconfig = recollinit(0, 0, 0, reason, argcnf);
+        if (!rclconfig || !rclconfig->ok()) {
+            std::cerr << "Recoll init failed: " << reason << "\n";
+            return 1;
+        }
+        Rcl::Db rcldb(rclconfig);
+        if (!rcldb.open(Rcl::Db::DbRO)) {
+            LOGERR("db open error\n");
+            return 1;
+        }
+        const char *cp;
+        if ((cp = getenv("RECOLL_EXTRA_DBS")) != 0) {
+            vector<string> dbl;
+            stringToTokens(cp, dbl, ":");
+            for (const auto& path : dbl) {
+                string dbdir = path_canon(path);
+                path_catslash(dbdir);
+                bool stripped;
+                if (!Rcl::Db::testDbDir(dbdir, &stripped)) {
+                    LOGERR("Not a xapian index: [" << dbdir << "]\n");
+                    return 1;
+                }
+                if (!rcldb.addQueryDb(dbdir)) {
+                    LOGERR("Can't add " << dbdir << " as extra index\n");
+                    return 1;
+                }
+            }
+        }
+
+        std::string prefix;
+        std::vector<std::string> dirs;
+        rcldb.dirlist(1, prefix, dirs);
+        sort(dirs.begin(), dirs.end());
+        std::cout << "Prefix " << prefix << " dirs :\n";
+        for (const auto& dir : dirs) {
+            std::cout << dir << "\n";
+        }
+        return 0;
+    } else {
+        std::cerr << "No operation set\n";
+        Usage();
+    }
+}