diff options
Diffstat (limited to 'src/file-utils.c')
| -rw-r--r-- | src/file-utils.c | 76 |
1 files changed, 69 insertions, 7 deletions
diff --git a/src/file-utils.c b/src/file-utils.c index 8415d58..fc5e410 100644 --- a/src/file-utils.c +++ b/src/file-utils.c @@ -241,6 +241,60 @@ teco_file_get_program_path(void) #endif +#ifdef G_OS_WIN32 + +/* + * Definitions from the DDK's ntifs.h. + */ +#define FileCaseSensitiveInformation 71 + +static gboolean +teco_file_is_case_sensitive(const gchar *path) +{ + g_autofree gunichar2 *path_utf16 = g_utf8_to_utf16(path, -1, NULL, NULL, NULL); + HANDLE hnd = CreateFileW(path_utf16, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + if (hnd == INVALID_HANDLE_VALUE) + return FALSE; + + /* + * NOTE: This requires Windows 10, version 1803 or later. + * FIXME: But even then, this is relying on undocumented behavior! + * If unavailable we just assume the platform-default case-insensitivity. + */ + FILE_CASE_SENSITIVE_INFORMATION info = {0}; + GetFileInformationByHandleEx(hnd, FileCaseSensitiveInformation, &info, sizeof(info)); + CloseHandle(hnd); + return info.Flags & FILE_CS_FLAG_CASE_SENSITIVE_DIR; +} + +#elif defined(G_OS_UNIX) && defined(_PC_CASE_SENSITIVE) + +/* + * This is supported at least on Mac OS. + * + * NOTE: If the selector is not supported, -1 is returned and we also assume case-sensitivity. + */ +static inline gboolean +teco_file_is_case_sensitive(const gchar *path) +{ + return pathconf(path, _PC_CASE_SENSITIVE); +} + +#else /* !G_OS_WIN32 && (!G_OS_UNIX || !_PC_CASE_SENSITIVE) */ + +/* + * FIXME: The only way to query this on Linux and FreeBSD would be to + * hardcode "case-insensitive" file systems. + */ +static inline gboolean +teco_file_is_case_sensitive(const gchar *path) +{ + return TRUE; +} + +#endif + /** * Get the datadir. * @@ -334,11 +388,16 @@ teco_file_auto_complete(const gchar *filename, GFileTest file_test, teco_string_ gsize dirname_len = teco_file_get_dirname_len(filename_expanded); g_autofree gchar *dirname = g_strndup(filename_expanded, dirname_len); gchar *basename = filename_expanded + dirname_len; + gsize basename_len = strlen(basename); g_autoptr(GDir) dir = g_dir_open(dirname_len ? dirname : ".", 0, NULL); if (!dir) return FALSE; + /* Whether the directory has case-sensitive entries */ + gboolean case_sensitive = teco_file_is_case_sensitive(dirname_len ? dirname : "."); + teco_string_diff_t string_diff = case_sensitive ? teco_string_diff : teco_string_casediff; + /* * On Windows, both forward and backslash * directory separators are allowed in directory @@ -356,9 +415,12 @@ teco_file_auto_complete(const gchar *filename, GFileTest file_test, teco_string_ guint files_len = 0; gsize prefix_len = 0; - const gchar *cur_basename; - while ((cur_basename = g_dir_read_name(dir))) { - if (!g_str_has_prefix(cur_basename, basename)) + teco_string_t cur_basename; + while ((cur_basename.data = (gchar *)g_dir_read_name(dir))) { + cur_basename.len = strlen(cur_basename.data); + + if (string_diff(&cur_basename, basename, basename_len) != basename_len) + /* basename is not a prefix of cur_basename */ continue; /* @@ -366,8 +428,8 @@ teco_file_auto_complete(const gchar *filename, GFileTest file_test, teco_string_ * Reserving one byte at the end of the filename ensures we can easily * append the directory separator without reallocations. */ - gchar *cur_filename = g_malloc(strlen(dirname)+strlen(cur_basename)+2); - strcat(strcpy(cur_filename, dirname), cur_basename); + gchar *cur_filename = g_malloc(strlen(dirname)+cur_basename.len+2); + strcat(strcpy(cur_filename, dirname), cur_basename.data); /* * NOTE: This avoids g_file_test() for G_FILE_TEST_EXISTS @@ -391,8 +453,8 @@ teco_file_auto_complete(const gchar *filename, GFileTest file_test, teco_string_ other_file.data = (gchar *)g_slist_next(files)->data + filename_len; other_file.len = strlen(other_file.data); - gsize len = teco_string_diff(&other_file, cur_filename + filename_len, - strlen(cur_filename) - filename_len); + gsize len = string_diff(&other_file, cur_filename + filename_len, + strlen(cur_filename) - filename_len); if (len < prefix_len) prefix_len = len; } else { |