Merge branch 'raii'

4 files changed, 41 insertions, 53 deletions

diff --git a/backend/CMakeLists.txt b/backend/CMakeLists.txt
index fe2bfbf..4c5a123 100644
--- a/backend/CMakeLists.txt
+++ b/backend/CMakeLists.txt
@@ -5,6 +5,7 @@
 find_package(CURL)
 find_package(PkgConfig REQUIRED)
 find_package(SQLite3)
+find_package(Boost REQUIRED COMPONENTS filesystem process)
 pkg_check_modules(deps REQUIRED IMPORTED_TARGET glib-2.0 gio-2.0 bzip2)
 
 add_library(backend)
@@ -16,6 +17,6 @@ target_sources(backend
 configure_file(config.h.in ${CMAKE_BINARY_DIR}/generated/config.h)
 include_directories(${CMAKE_BINARY_DIR}/generated/)
 
-target_link_libraries(backend PkgConfig::deps CURL::libcurl ${SQLite3_LIBRARIES})
+target_link_libraries(backend PkgConfig::deps CURL::libcurl ${SQLite3_LIBRARIES} Boost::filesystem Boost::process)
 
 file(COPY metadata.db DESTINATION ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LOCALSTATEDIR})
diff --git a/backend/job.cpp b/backend/job.cpp
index 68a2090..330e492 100644
--- a/backend/job.cpp
+++ b/backend/job.cpp
@@ -16,6 +16,7 @@ module;
 #include <glib/gstdio.h>
 #include <sqlite3.h>
 #include <forward_list>
+#include <boost/filesystem.hpp>
 
 export module katja.job;
 
@@ -669,7 +670,8 @@ void pk_backend_update_packages(JobData *job_data, char **package_ids)
 
 void pk_backend_refresh_cache(JobData *job_data, bool force)
 {
-    char *tmp_dir_name, *db_err, *path = nullptr;
+    char *db_err, *path = nullptr;
+    std::filesystem::path tmp_dir_name;
     int ret;
     std::forward_list<katja::cache_entry> file_list;
     GFile *db_file = nullptr;
@@ -678,13 +680,8 @@ void pk_backend_refresh_cache(JobData *job_data, bool force)
     sqlite3_stmt *stmt = nullptr;
 
     /* Create temporary directory */
-    tmp_dir_name = g_dir_make_tmp("katja.XXXXXX", &err);
-    if (!tmp_dir_name)
-    {
-        std::cerr << err->message << std::endl;
-        g_error_free(err);
-        return;
-    }
+    tmp_dir_name = std::filesystem::temp_directory_path() / boost::filesystem::unique_path("katja.%%%%%%").native();
+    std::filesystem::create_directories(tmp_dir_name);
 
     /* Force the complete cache refresh if the read configuration file is newer than the metadata cache */
     if (!force)
@@ -754,7 +751,5 @@ out:
     g_free(path);
 
     std::filesystem::remove_all(tmp_dir_name);
-    g_rmdir(tmp_dir_name);
-    g_free(tmp_dir_name);
 }
 }
diff --git a/backend/pkgtools.cpp b/backend/pkgtools.cpp
index 80dc4d8..6c387f3 100644
--- a/backend/pkgtools.cpp
+++ b/backend/pkgtools.cpp
@@ -81,7 +81,8 @@ public:
      **/
     bool download(JobData *job_data, const char *dest_dir_name, char *pkg_name) noexcept
     {
-        char *dest_filename, *source_url;
+        std::filesystem::path dest_filename;
+        std::string source_url;
         bool ret = false;
         sqlite3_stmt *statement = nullptr;
         CURL *curl = nullptr;
@@ -100,22 +101,20 @@ public:
 
         if (sqlite3_step(statement) == SQLITE_ROW)
         {
-            dest_filename = g_build_filename(dest_dir_name, sqlite3_column_text(statement, 1), nullptr);
-            source_url = g_strconcat(this->mirror.c_str(),
-                                     sqlite3_column_text(statement, 0),
-                                     "/",
-                                     sqlite3_column_text(statement, 1),
-                                     nullptr);
+            dest_filename = std::filesystem::path(dest_dir_name)
+                / reinterpret_cast<const char *>(sqlite3_column_text(statement, 1));
+            source_url = this->mirror
+                + reinterpret_cast<const char *>(sqlite3_column_text(statement, 0))
+                + "/"
+                + reinterpret_cast<const char *>(sqlite3_column_text(statement, 1));
 
-            ret = g_file_test(dest_filename, G_FILE_TEST_EXISTS)
-                || get_file(&curl, source_url, dest_filename) == CURLE_OK;
+            ret = g_file_test(dest_filename.native().c_str(), G_FILE_TEST_EXISTS)
+                || get_file(&curl, source_url.c_str(), dest_filename.native().c_str()) == CURLE_OK;
 
             if (curl)
             {
                 curl_easy_cleanup(curl);
             }
-            g_free(source_url);
-            g_free(dest_filename);
         }
         sqlite3_finalize(statement);
 
@@ -131,7 +130,7 @@ public:
      **/
     void install(JobData *job_data, char *pkg_name) noexcept
     {
-        char *pkg_filename, *cmd_line;
+        std::filesystem::path pkg_filename;
         sqlite3_stmt *statement = nullptr;
 
         if ((sqlite3_prepare_v2(job_data->db,
@@ -149,23 +148,18 @@ public:
 
         if (sqlite3_step(statement) == SQLITE_ROW)
         {
-            pkg_filename = g_build_filename(LOCALSTATEDIR,
-                                            "cache",
-                                            "katja",
-                                            "downloads",
-                                            sqlite3_column_text(statement, 0),
-                                            nullptr);
-            cmd_line = g_strconcat("/sbin/upgradepkg --install-new ", pkg_filename, nullptr);
-            g_spawn_command_line_sync(cmd_line, nullptr, nullptr, nullptr, nullptr);
-            g_free(cmd_line);
-
-            g_free(pkg_filename);
+            pkg_filename = std::filesystem::path(LOCALSTATEDIR)
+                / "cache" / "katja" / "downloads"
+                / reinterpret_cast<const char*>(sqlite3_column_text(statement, 0));
+
+            std::string cmd_line = "/sbin/upgradepkg --install-new " + pkg_filename.native();
+            g_spawn_command_line_sync(cmd_line.c_str(), nullptr, nullptr, nullptr, nullptr);
         }
         sqlite3_finalize(statement);
     }
 
-    virtual std::forward_list<cache_entry> collect_cache_info(const char *tmpl) noexcept = 0;
-    virtual void generate_cache(JobData *job_data, const char *tmpl) noexcept = 0;
+    virtual std::forward_list<cache_entry> collect_cache_info(const std::filesystem::path& tmpl) noexcept = 0;
+    virtual void generate_cache(JobData *job_data, const std::filesystem::path& tmpl) noexcept = 0;
 
 protected:
     std::regex blacklist;
diff --git a/backend/slackpkg.cpp b/backend/slackpkg.cpp
index d546b5e..b179da0 100644
--- a/backend/slackpkg.cpp
+++ b/backend/slackpkg.cpp
@@ -67,7 +67,7 @@ public:
      *
      * Returns: List of files needed for building the cache.
      **/
-    std::forward_list<cache_entry> collect_cache_info(const char *tmpl) noexcept
+    std::forward_list<cache_entry> collect_cache_info(const std::filesystem::path& tmpl) noexcept
     {
         CURL *curl = nullptr;
         cache_entry source_dest;
@@ -75,7 +75,7 @@ public:
         GFile *tmp_dir, *repo_tmp_dir;
 
         /* Create the temporary directory for the repository */
-        tmp_dir = g_file_new_for_path(tmpl);
+        tmp_dir = g_file_new_for_path(tmpl.native().c_str());
         repo_tmp_dir = g_file_get_child(tmp_dir, this->name.c_str());
         g_file_make_directory(repo_tmp_dir, nullptr, nullptr);
 
@@ -83,7 +83,7 @@ public:
         for (const std::string& current_priority : this->priority)
         {
             source_dest.first = this->mirror + current_priority + "/PACKAGES.TXT";
-            source_dest.second = std::filesystem::path(tmpl) / this->name / "PACKAGES.TXT";
+            source_dest.second = tmpl / this->name / "PACKAGES.TXT";
 
             if (get_file(&curl, source_dest.first.c_str(), nullptr) == CURLE_OK)
             {
@@ -96,7 +96,7 @@ public:
 
             /* Download file lists if available */
             source_dest.first = this->mirror + current_priority + "/MANIFEST.bz2";
-            source_dest.second = std::filesystem::path(tmpl) / this->name / (current_priority + "-MANIFEST.bz2");
+            source_dest.second = tmpl / this->name / (current_priority + "-MANIFEST.bz2");
 
             if (get_file(&curl, source_dest.first.c_str(), nullptr) == CURLE_OK)
             {
@@ -124,10 +124,10 @@ public:
      *
      * Returns: List of files needed for building the cache.
      **/
-    void generate_cache(JobData *job_data, const char *tmpl) noexcept
+    void generate_cache(JobData *job_data, const std::filesystem::path& tmpl) noexcept
     {
         char **pkg_tokens = nullptr;
-        char *query = nullptr, *filename = nullptr, *location = nullptr, *summary = nullptr, *line, *packages_txt;
+        char *query = nullptr, *filename = nullptr, *location = nullptr, *summary = nullptr, *line;
         unsigned pkg_compressed = 0, pkg_uncompressed = 0;
         std::uint8_t pkg_name_len;
         GString *desc;
@@ -138,11 +138,11 @@ public:
         sqlite3_stmt *statement;
 
         /* Check if the temporary directory for this repository exists, then the file metadata have to be generated */
-        packages_txt = g_build_filename(tmpl, this->name.c_str(), "PACKAGES.TXT", nullptr);
-        list_file = g_file_new_for_path(packages_txt);
+        std::filesystem::path packages_txt = tmpl / this->name / "PACKAGES.TXT";
+        list_file = g_file_new_for_path(packages_txt.native().c_str());
         fin = g_file_read(list_file, nullptr, nullptr);
         g_object_unref(list_file);
-        g_free(packages_txt);
+
         if (!fin)
         {
             goto out;
@@ -304,9 +304,7 @@ public:
         /* Parse MANIFEST.bz2 */
         for (const std::string& current_priority : this->priority)
         {
-            filename = g_strconcat(current_priority.c_str(), "-MANIFEST.bz2", nullptr);
-            manifest(job_data, tmpl, filename);
-            g_free(filename);
+            manifest(job_data, tmpl, current_priority + "-MANIFEST.bz2");
         }
     out:
         sqlite3_finalize(update_statement);
@@ -333,12 +331,13 @@ private:
      * Parse the manifest file and save the file list in the database.
      */
 
-    void manifest(JobData *job_data, const char *tmpl, char *filename) noexcept
+    void manifest(JobData *job_data, const std::filesystem::path& tmpl, const std::string& filename) noexcept
     {
         FILE *manifest;
         int err, read_len;
         unsigned pos;
-        char buf[max_buf_size], *path, *pkg_filename, *rest = nullptr, *start;
+        char buf[max_buf_size], *pkg_filename, *rest = nullptr, *start;
+        std::filesystem::path path;
         char *full_name = nullptr;
         char **line, **lines;
         BZFILE *manifest_bz2;
@@ -346,9 +345,8 @@ private:
         GMatchInfo *match_info;
         sqlite3_stmt *statement = nullptr;
 
-        path = g_build_filename(tmpl, this->name.c_str(), filename, nullptr);
-        manifest = fopen(path, "rb");
-        g_free(path);
+        path = tmpl / this->name / filename;
+        manifest = fopen(path.native().c_str(), "rb");
 
         if (!manifest)
         {