Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/src/path-prefix.cpp b/src/path-prefix.cpp
new file mode 100644
index 0000000..1d61748
--- /dev/null
+++ b/src/path-prefix.cpp
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * path-prefix.cpp - Inkscape specific prefix handling *//*
+ * Authors:
+ *   Patrick Storz <eduard.braun2@gmx.de>
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"  // only include where actually required!
+#endif
+
+#ifdef _WIN32
+#include <windows.h> // for GetModuleFileNameW
+#endif
+
+#ifdef __APPLE__
+#include <mach-o/dyld.h> // for _NSGetExecutablePath
+#endif
+
+#ifdef __NetBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+
+#ifdef __FreeBSD__
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+
+#include <cassert>
+#include <glib.h>
+#include <glibmm.h>
+
+#include "path-prefix.h"
+
+/**
+ * Guess the absolute path of the application bundle prefix directory.
+ * The result path is not guaranteed to exist.
+ *
+ * On Windows, the result should be identical to
+ * g_win32_get_package_installation_directory_of_module(nullptr)
+ */
+static std::string _get_bundle_prefix_dir()
+{
+    char const *program_dir = get_program_dir();
+    auto prefix = Glib::path_get_dirname(program_dir);
+
+    if (g_str_has_suffix(program_dir, "Contents/MacOS")) {
+        // macOS
+        prefix += "/Resources";
+    } else if (Glib::path_get_basename(program_dir) == "bin") {
+        // Windows, Linux
+    } else if (Glib::path_get_basename(prefix) == "lib") {
+        // AppImage
+        // program_dir=appdir/lib/x86_64-linux-gnu
+        // prefix_dir=appdir/usr
+        prefix = Glib::build_filename(Glib::path_get_dirname(prefix), "usr");
+    }
+
+    return prefix;
+}
+
+/**
+ * Determine the location of the Inkscape data directory (typically the share/ folder
+ * from where Inkscape should be loading resources).
+ *
+ * The data directory is the first of:
+ *
+ * - Environment variable $INKSCAPE_DATADIR if not empty
+ * - If a bundle is detected: "<bundle-prefix>/share"
+ * - Compile time value of INKSCAPE_DATADIR
+ */
+char const *get_inkscape_datadir()
+{
+    static char const *inkscape_datadir = nullptr;
+    if (!inkscape_datadir) {
+        static std::string datadir = Glib::getenv("INKSCAPE_DATADIR");
+
+        if (datadir.empty()) {
+            datadir = Glib::build_filename(_get_bundle_prefix_dir(), "share");
+
+            if (!Glib::file_test(Glib::build_filename(datadir, "inkscape"), Glib::FILE_TEST_IS_DIR)) {
+                datadir = INKSCAPE_DATADIR;
+            }
+        }
+
+        inkscape_datadir = datadir.c_str();
+
+#if GLIB_CHECK_VERSION(2,58,0)
+        inkscape_datadir = g_canonicalize_filename(inkscape_datadir, nullptr);
+#endif
+    }
+
+    return inkscape_datadir;
+}
+
+/**
+ * Gets the the currently running program's executable name (including full path)
+ *
+ * @return executable name (including full path) encoded as UTF-8
+ *         or NULL if it can't be determined
+ */
+char const *get_program_name()
+{
+    static gchar *program_name = NULL;
+
+    if (program_name == NULL) {
+        // There is no portable way to get an executable's name including path, so we need to do it manually.
+        // TODO: Re-evaluate boost::dll::program_location() once we require Boost >= 1.61
+        //
+        // The following platform-specific code is partially based on GdxPixbuf's get_toplevel()
+        // See also https://stackoverflow.com/a/1024937
+#if defined(_WIN32)
+        wchar_t module_file_name[MAX_PATH];
+        if (GetModuleFileNameW(NULL, module_file_name, MAX_PATH)) {
+            program_name = g_utf16_to_utf8((gunichar2 *)module_file_name, -1, NULL, NULL, NULL);
+        } else {
+            g_warning("get_program_name() - GetModuleFileNameW failed");
+        }
+#elif defined(__APPLE__)
+        char pathbuf[PATH_MAX + 1];
+        uint32_t bufsize = sizeof(pathbuf);
+        if (_NSGetExecutablePath(pathbuf, &bufsize) == 0) {
+            program_name = realpath(pathbuf, nullptr);
+        } else {
+            g_warning("get_program_name() - _NSGetExecutablePath failed");
+        }
+#elif defined(__linux__) || defined(__CYGWIN__)
+        program_name = g_file_read_link("/proc/self/exe", NULL);
+        if (!program_name) {
+            g_warning("get_program_name() - g_file_read_link failed");
+        }
+#elif defined(__NetBSD__)
+        static const int name[] = {CTL_KERN, KERN_PROC_ARGS, -1, KERN_PROC_PATHNAME};
+        char path[MAXPATHLEN];
+        size_t len = sizeof(path);
+        if (sysctl(name, __arraycount(name), path, &len, NULL, 0) == 0) {
+            program_name = realpath(path, nullptr);
+        } else {
+            g_warning("get_program_name() - sysctl failed");
+        }
+#elif defined(__FreeBSD__)
+       int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+       char buf[MAXPATHLEN];
+       size_t cb = sizeof(buf);
+       if (sysctl(mib, 4, buf, &cb, NULL, 0) == 0) {
+           program_name = realpath(buf, nullptr);
+       } else {
+           g_warning("get_program_name() - sysctl failed");
+       }      
+#else
+#warning get_program_name() - no known way to obtain executable name on this platform
+        g_info("get_program_name() - no known way to obtain executable name on this platform");
+#endif
+    }
+
+    return program_name;
+}
+
+/**
+ * Gets the the full path to the directory containing the currently running program's executable
+ *
+ * @return full path to directory encoded in native encoding,
+ *         or NULL if it can't be determined
+ */
+char const *get_program_dir()
+{
+    static char *program_dir = g_path_get_dirname(get_program_name());
+    return program_dir;
+}
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :