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Unify error reporting in gfileutils.c
Use the set_file_error helper function in more places, saving some 50 lines.
This commit is contained in:
Matthias Clasen
parent
2299bcd88d
commit
f16753cfe0
@ -606,8 +606,50 @@ g_file_error_from_errno (gint err_no)
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}
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}
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static char *
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format_error_message (const gchar *filename,
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const gchar *format_string) G_GNUC_FORMAT(2);
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wformat-nonliteral"
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static char *
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format_error_message (const gchar *filename,
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const gchar *format_string)
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{
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gint saved_errno = errno;
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gchar *display_name;
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gchar *msg;
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display_name = g_filename_display_name (filename);
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msg = g_strdup_printf (format_string, display_name, g_strerror (saved_errno));
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g_free (display_name);
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return msg;
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}
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#pragma GCC diagnostic pop
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/* format string must have two '%s':
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*
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* - the place for the filename
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* - the place for the strerror
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*/
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static void
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set_file_error (GError **error,
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const gchar *filename,
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const gchar *format_string)
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{
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int saved_errno = errno;
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char *msg = format_error_message (filename, format_string);
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g_set_error_literal (error, G_FILE_ERROR, g_file_error_from_errno (saved_errno),
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msg);
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g_free (msg);
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}
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static gboolean
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get_contents_stdio (const gchar *display_filename,
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get_contents_stdio (const gchar *filename,
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FILE *f,
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gchar **contents,
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gsize *length,
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@ -619,6 +661,7 @@ get_contents_stdio (const gchar *display_filename,
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gsize total_bytes = 0;
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gsize total_allocated = 0;
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gchar *tmp;
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gchar *display_filename;
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g_assert (f != NULL);
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@ -650,12 +693,14 @@ get_contents_stdio (const gchar *display_filename,
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if (tmp == NULL)
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{
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display_filename = g_filename_display_name (filename);
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g_set_error (error,
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G_FILE_ERROR,
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G_FILE_ERROR_NOMEM,
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g_dngettext (GETTEXT_PACKAGE, "Could not allocate %lu byte to read file \"%s\"", "Could not allocate %lu bytes to read file \"%s\"", (gulong)total_allocated),
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(gulong) total_allocated,
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display_filename);
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g_free (display_filename);
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goto error;
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}
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@ -665,12 +710,14 @@ get_contents_stdio (const gchar *display_filename,
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if (ferror (f))
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{
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display_filename = g_filename_display_name (filename);
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Error reading file '%s': %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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goto error;
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}
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@ -699,11 +746,13 @@ get_contents_stdio (const gchar *display_filename,
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return TRUE;
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file_too_large:
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display_filename = g_filename_display_name (filename);
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g_set_error (error,
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G_FILE_ERROR,
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G_FILE_ERROR_FAILED,
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_("File \"%s\" is too large"),
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display_filename);
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g_free (display_filename);
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error:
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@ -716,7 +765,7 @@ get_contents_stdio (const gchar *display_filename,
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#ifndef G_OS_WIN32
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static gboolean
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get_contents_regfile (const gchar *display_filename,
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get_contents_regfile (const gchar *filename,
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struct stat *stat_buf,
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gint fd,
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gchar **contents,
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@ -727,6 +776,7 @@ get_contents_regfile (const gchar *display_filename,
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gsize bytes_read;
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gsize size;
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gsize alloc_size;
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gchar *display_filename;
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size = stat_buf->st_size;
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@ -735,13 +785,14 @@ get_contents_regfile (const gchar *display_filename,
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if (buf == NULL)
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{
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display_filename = g_filename_display_name (filename);
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g_set_error (error,
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G_FILE_ERROR,
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G_FILE_ERROR_NOMEM,
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g_dngettext (GETTEXT_PACKAGE, "Could not allocate %lu byte to read file \"%s\"", "Could not allocate %lu bytes to read file \"%s\"", (gulong)alloc_size),
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(gulong) alloc_size,
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display_filename);
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g_free (display_filename);
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goto error;
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}
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@ -759,13 +810,14 @@ get_contents_regfile (const gchar *display_filename,
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int save_errno = errno;
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g_free (buf);
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display_filename = g_filename_display_name (filename);
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to read from file '%s': %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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goto error;
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}
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}
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@ -801,22 +853,15 @@ get_contents_posix (const gchar *filename,
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{
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struct stat stat_buf;
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gint fd;
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gchar *display_filename = g_filename_display_name (filename);
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/* O_BINARY useful on Cygwin */
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fd = open (filename, O_RDONLY|O_BINARY);
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if (fd < 0)
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{
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int save_errno = errno;
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to open file '%s': %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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set_file_error (error,
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filename,
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_("Failed to open file '%s': %s"));
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return FALSE;
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}
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@ -824,29 +869,22 @@ get_contents_posix (const gchar *filename,
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/* I don't think this will ever fail, aside from ENOMEM, but. */
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if (fstat (fd, &stat_buf) < 0)
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{
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int save_errno = errno;
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set_file_error (error,
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filename,
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_("Failed to get attributes of file '%s': fstat() failed: %s"));
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close (fd);
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to get attributes of file '%s': fstat() failed: %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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return FALSE;
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}
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if (stat_buf.st_size > 0 && S_ISREG (stat_buf.st_mode))
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{
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gboolean retval = get_contents_regfile (display_filename,
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gboolean retval = get_contents_regfile (filename,
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&stat_buf,
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fd,
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contents,
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length,
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error);
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g_free (display_filename);
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return retval;
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}
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@ -859,21 +897,14 @@ get_contents_posix (const gchar *filename,
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if (f == NULL)
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{
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int save_errno = errno;
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to open file '%s': fdopen() failed: %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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set_file_error (error,
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filename,
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_("Failed to open file '%s': fdopen() failed: %s"));
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return FALSE;
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}
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retval = get_contents_stdio (display_filename, f, contents, length, error);
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g_free (display_filename);
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retval = get_contents_stdio (filename, f, contents, length, error);
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return retval;
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}
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@ -889,27 +920,19 @@ get_contents_win32 (const gchar *filename,
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{
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FILE *f;
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gboolean retval;
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gchar *display_filename = g_filename_display_name (filename);
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int save_errno;
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f = g_fopen (filename, "rb");
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save_errno = errno;
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if (f == NULL)
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{
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to open file '%s': %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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set_file_error (error,
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filename,
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_("Failed to open file '%s': %s"));
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return FALSE;
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}
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retval = get_contents_stdio (display_filename, f, contents, length, error);
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g_free (display_filename);
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retval = get_contents_stdio (filename, f, contents, length, error);
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return retval;
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}
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@ -986,49 +1009,6 @@ rename_file (const char *old_name,
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return TRUE;
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}
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static char *
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format_error_message (const gchar *filename,
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const gchar *format_string) G_GNUC_FORMAT(2);
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wformat-nonliteral"
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static char *
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format_error_message (const gchar *filename,
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const gchar *format_string)
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{
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gint saved_errno = errno;
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gchar *display_name;
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gchar *msg;
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display_name = g_filename_display_name (filename);
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msg = g_strdup_printf (format_string, display_name, g_strerror (saved_errno));
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g_free (display_name);
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return msg;
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}
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#pragma GCC diagnostic pop
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/* format string must have two '%s':
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*
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* - the place for the filename
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* - the place for the strerror
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*/
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static void
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set_file_error (GError **error,
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const gchar *filename,
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const gchar *format_string)
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{
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int saved_errno = errno;
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char *msg = format_error_message (filename, format_string);
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g_set_error_literal (error, G_FILE_ERROR, g_file_error_from_errno (saved_errno),
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msg);
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g_free (msg);
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}
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static gchar *
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write_to_temp_file (const gchar *contents,
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gssize length,
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@ -1237,18 +1217,9 @@ g_file_set_contents (const gchar *filename,
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if (g_unlink (filename) == -1)
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{
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gchar *display_filename = g_filename_display_name (filename);
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int save_errno = errno;
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Existing file '%s' could not be removed: g_unlink() failed: %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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set_file_error (error,
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filename,
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_("Existing file '%s' could not be removed: g_unlink() failed: %s"));
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g_unlink (tmp_filename);
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retval = FALSE;
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goto out;
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@ -1549,15 +1520,9 @@ g_get_tmp_name (const gchar *tmpl,
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retval = get_tmp_file (fulltemplate, f, flags, mode);
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if (retval == -1)
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{
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int save_errno = errno;
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gchar *display_fulltemplate = g_filename_display_name (fulltemplate);
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to create file '%s': %s"),
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display_fulltemplate, g_strerror (save_errno));
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g_free (display_fulltemplate);
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set_file_error (error,
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fulltemplate,
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_("Failed to create file '%s': %s"));
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g_free (fulltemplate);
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return -1;
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}
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@ -2051,27 +2016,20 @@ g_file_read_link (const gchar *filename,
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while (TRUE)
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{
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read_size = readlink (filename, buffer, size);
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if (read_size < 0) {
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int save_errno = errno;
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gchar *display_filename = g_filename_display_name (filename);
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g_free (buffer);
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (save_errno),
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_("Failed to read the symbolic link '%s': %s"),
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display_filename,
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g_strerror (save_errno));
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g_free (display_filename);
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if (read_size < 0)
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{
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set_file_error (error,
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filename,
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_("Failed to read the symbolic link '%s': %s"));
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return NULL;
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}
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return NULL;
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}
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if (read_size < size)
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{
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buffer[read_size] = 0;
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return buffer;
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}
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{
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buffer[read_size] = 0;
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return buffer;
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}
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size *= 2;
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buffer = g_realloc (buffer, size);
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