]> wimlib.net Git - wimlib/blobdiff - programs/imagex.c
Initial support for resuming extraction from split pipable WIMs
[wimlib] / programs / imagex.c
index f66bcd5bf5d1021c0c2613a1277d680f62d5c41b..977f21be48c2cb714e8d3191f0b9a0400c0e6823 100644 (file)
@@ -65,32 +65,50 @@ static inline void set_fd_to_binary_mode(int fd)
 }
 #endif /* !__WIN32 */
 
+/* Don't confuse the user by presenting the mounting commands on Windows when
+ * they will never work.  However on UNIX-like systems we always present them,
+ * even if WITH_FUSE is not defined at this point, as to not tie the build of
+ * wimlib-imagex to a specific build of wimlib.  */
+#ifdef __WIN32__
+#  define WIM_MOUNTING_SUPPORTED 0
+#else
+#  define WIM_MOUNTING_SUPPORTED 1
+#endif
 
 #define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
 
 #define for_opt(c, opts) while ((c = getopt_long_only(argc, (tchar**)argv, T(""), \
                                opts, NULL)) != -1)
 
-enum imagex_op_type {
-       APPEND = 0,
-       APPLY,
-       CAPTURE,
-       DELETE,
-       DIR,
-       EXPORT,
-       EXTRACT,
-       INFO,
-       JOIN,
-       MOUNT,
-       MOUNTRW,
-       OPTIMIZE,
-       SPLIT,
-       UNMOUNT,
-       UPDATE,
+
+enum {
+       CMD_NONE = -1,
+       CMD_APPEND = 0,
+       CMD_APPLY,
+       CMD_CAPTURE,
+       CMD_DELETE,
+       CMD_DIR,
+       CMD_EXPORT,
+       CMD_EXTRACT,
+       CMD_INFO,
+       CMD_JOIN,
+#if WIM_MOUNTING_SUPPORTED
+       CMD_MOUNT,
+       CMD_MOUNTRW,
+#endif
+       CMD_OPTIMIZE,
+       CMD_SPLIT,
+#if WIM_MOUNTING_SUPPORTED
+       CMD_UNMOUNT,
+#endif
+       CMD_UPDATE,
+       CMD_MAX,
 };
 
-static void usage(int cmd_type);
-static void usage_all(void);
+static void usage(int cmd, FILE *fp);
+static void usage_all(FILE *fp);
+static void recommend_man_page(int cmd, FILE *fp);
+static const tchar *get_cmd_string(int cmd, bool nospace);
 
 static bool imagex_be_quiet = false;
 static FILE *imagex_info_file;
@@ -98,119 +116,6 @@ static FILE *imagex_info_file;
 #define imagex_printf(format, ...) \
                tfprintf(imagex_info_file, format, ##__VA_ARGS__)
 
-
-static const tchar *usage_strings[] = {
-[APPEND] =
-T(
-IMAGEX_PROGNAME" append (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
-"                    [DESCRIPTION] [--boot] [--check] [--nocheck]\n"
-"                    [--flags EDITION_ID] [--verbose] [--dereference]\n"
-"                    [--config=FILE] [--threads=NUM_THREADS] [--rebuild]\n"
-"                    [--unix-data] [--source-list] [--no-acls]\n"
-"                    [--strict-acls] [--rpfix] [--norpfix] [--pipable]\n"
-"                    [--not-pipable]\n"
-),
-[APPLY] =
-T(
-IMAGEX_PROGNAME" apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all]\n"
-"                    (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
-"                    [--symlink] [--verbose] [--ref=\"GLOB\"] [--unix-data]\n"
-"                    [--no-acls] [--strict-acls] [--rpfix] [--norpfix]\n"
-"                    [--include-invalid-names]\n"
-),
-[CAPTURE] =
-T(
-IMAGEX_PROGNAME" capture (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
-"                    [DESCRIPTION] [--boot] [--check] [--nocheck]\n"
-"                    [--compress=TYPE] [--flags EDITION_ID] [--verbose]\n"
-"                    [--dereference] [--config=FILE]\n"
-"                    [--threads=NUM_THREADS] [--unix-data] [--source-list]\n"
-"                    [--no-acls] [--strict-acls] [--rpfix] [--norpfix]\n"
-"                    [--pipable] [--not-pipable]\n"
-),
-[DELETE] =
-T(
-IMAGEX_PROGNAME" delete WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check]\n"
-"                    [--soft]\n"
-),
-[DIR] =
-T(
-IMAGEX_PROGNAME" dir WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--path=PATH]\n"
-),
-[EXPORT] =
-T(
-IMAGEX_PROGNAME" export SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
-"                    DEST_WIMFILE [DEST_IMAGE_NAME] [DEST_IMAGE_DESCRIPTION]\n"
-"                    [--boot] [--check] [--nocheck] [--compress=TYPE]\n"
-"                    [--ref=\"GLOB\"] [--threads=NUM_THREADS] [--rebuild]\n"
-"                    [--pipable] [--not-pipable]\n"
-),
-[EXTRACT] =
-T(
-IMAGEX_PROGNAME" extract WIMFILE (IMAGE_NUM | IMAGE_NAME) [PATH...]\n"
-"                    [--check] [--ref=\"GLOB\"] [--verbose] [--unix-data]\n"
-"                    [--no-acls] [--strict-acls] [--to-stdout] [--dest-dir=DIR]\n"
-"                    [--include-invalid-names]\n"
-),
-[INFO] =
-T(
-IMAGEX_PROGNAME" info WIMFILE [IMAGE_NUM | IMAGE_NAME] [NEW_NAME]\n"
-"                    [NEW_DESC] [--boot] [--check] [--nocheck] [--header]\n"
-"                    [--lookup-table] [--xml] [--extract-xml FILE]\n"
-"                    [--metadata]\n"
-),
-[JOIN] =
-T(
-IMAGEX_PROGNAME" join [--check] WIMFILE SPLIT_WIM...\n"
-),
-[MOUNT] =
-T(
-IMAGEX_PROGNAME" mount WIMFILE (IMAGE_NUM | IMAGE_NAME) DIRECTORY\n"
-"                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
-"                    [--ref=\"GLOB\"] [--unix-data] [--allow-other]\n"
-),
-[MOUNTRW] =
-T(
-IMAGEX_PROGNAME" mountrw WIMFILE [IMAGE_NUM | IMAGE_NAME] DIRECTORY\n"
-"                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
-"                    [--staging-dir=DIR] [--unix-data] [--allow-other]\n"
-),
-[OPTIMIZE] =
-T(
-IMAGEX_PROGNAME" optimize WIMFILE [--check] [--nocheck] [--recompress]\n"
-"                    [--threads=NUM_THREADS] [--pipable] [--not-pipable]\n"
-),
-[SPLIT] =
-T(
-IMAGEX_PROGNAME" split WIMFILE SPLIT_WIMFILE PART_SIZE_MB [--check]\n"
-),
-[UNMOUNT] =
-T(
-IMAGEX_PROGNAME" unmount DIRECTORY [--commit] [--check] [--rebuild] [--lazy]\n"
-),
-[UPDATE] =
-T(
-IMAGEX_PROGNAME" update WIMFILE [IMAGE_NUM | IMAGE_NAME] [--check] [--rebuild]\n"
-"                    [--threads=NUM_THREADS] [DEFAULT_ADD_OPTIONS]\n"
-"                    [DEFAULT_DELETE_OPTIONS] [--command=STRING] [< CMDFILE]\n"
-),
-};
-
-
-static void
-recommend_man_page(const tchar *cmd_name)
-{
-       const tchar *format_str;
-#ifdef __WIN32__
-       format_str = T("See "IMAGEX_PROGNAME"%"TS"%"TS".pdf in the "
-                      "doc directory for more details.\n");
-#else
-       format_str = T("Try `man "IMAGEX_PROGNAME"%"TS"%"TS"' "
-                      "for more details.\n");
-#endif
-       tprintf(format_str, *cmd_name ? T("-") : T(""), cmd_name);
-}
-
 enum {
        IMAGEX_ALLOW_OTHER_OPTION,
        IMAGEX_BOOT_OPTION,
@@ -241,6 +146,7 @@ enum {
        IMAGEX_RECOMPRESS_OPTION,
        IMAGEX_RECURSIVE_OPTION,
        IMAGEX_REF_OPTION,
+       IMAGEX_RESUME_OPTION,
        IMAGEX_RPFIX_OPTION,
        IMAGEX_SOFT_OPTION,
        IMAGEX_SOURCE_LIST_OPTION,
@@ -268,8 +174,10 @@ static const struct option apply_options[] = {
        {T("rpfix"),       no_argument,       NULL, IMAGEX_RPFIX_OPTION},
        {T("norpfix"),     no_argument,       NULL, IMAGEX_NORPFIX_OPTION},
        {T("include-invalid-names"), no_argument,       NULL, IMAGEX_INCLUDE_INVALID_NAMES_OPTION},
+       {T("resume"),      no_argument,       NULL, IMAGEX_RESUME_OPTION},
        {NULL, 0, NULL, 0},
 };
+
 static const struct option capture_or_append_options[] = {
        {T("boot"),        no_argument,       NULL, IMAGEX_BOOT_OPTION},
        {T("check"),       no_argument,       NULL, IMAGEX_CHECK_OPTION},
@@ -293,6 +201,7 @@ static const struct option capture_or_append_options[] = {
        {T("not-pipable"), no_argument,       NULL, IMAGEX_NOT_PIPABLE_OPTION},
        {NULL, 0, NULL, 0},
 };
+
 static const struct option delete_options[] = {
        {T("check"), no_argument, NULL, IMAGEX_CHECK_OPTION},
        {T("soft"),  no_argument, NULL, IMAGEX_SOFT_OPTION},
@@ -452,9 +361,9 @@ verify_image_exists(int image, const tchar *image_name, const tchar *wim_name)
                imagex_error(T("\"%"TS"\" is not a valid image in \"%"TS"\"!\n"
                             "       Please specify a 1-based image index or "
                             "image name.\n"
-                            "       You may use `"IMAGEX_PROGNAME" info' to list the images "
+                            "       You may use `%"TS"' to list the images "
                             "contained in a WIM."),
-                            image_name, wim_name);
+                            image_name, wim_name, get_cmd_string(CMD_INFO, false));
                return -1;
        }
        return 0;
@@ -1078,6 +987,7 @@ imagex_progress_func(enum wimlib_progress_msg msg,
                unit_shift = get_unit(info->write_streams.total_bytes, &unit_name);
                percent_done = TO_PERCENT(info->write_streams.completed_bytes,
                                          info->write_streams.total_bytes);
+
                if (info->write_streams.completed_streams == 0) {
                        const tchar *data_type;
 
@@ -1086,13 +996,28 @@ imagex_progress_func(enum wimlib_progress_msg msg,
                                data_type, info->write_streams.num_threads,
                                (info->write_streams.num_threads == 1) ? T("") : T("s"));
                }
-               imagex_printf(T("\r%"PRIu64" %"TS" of %"PRIu64" %"TS" (uncompressed) "
-                       "written (%u%% done)"),
-                       info->write_streams.completed_bytes >> unit_shift,
-                       unit_name,
-                       info->write_streams.total_bytes >> unit_shift,
-                       unit_name,
-                       percent_done);
+               if (info->write_streams.total_parts <= 1) {
+                       imagex_printf(T("\r%"PRIu64" %"TS" of %"PRIu64" %"TS" (uncompressed) "
+                               "written (%u%% done)"),
+                               info->write_streams.completed_bytes >> unit_shift,
+                               unit_name,
+                               info->write_streams.total_bytes >> unit_shift,
+                               unit_name,
+                               percent_done);
+               } else {
+                       imagex_printf(T("\rWriting resources from part %u of %u: "
+                                 "%"PRIu64 " %"TS" of %"PRIu64" %"TS" (%u%%) written"),
+                               (info->write_streams.completed_parts ==
+                                       info->write_streams.total_parts) ?
+                                               info->write_streams.completed_parts :
+                                               info->write_streams.completed_parts + 1,
+                               info->write_streams.total_parts,
+                               info->write_streams.completed_bytes >> unit_shift,
+                               unit_name,
+                               info->write_streams.total_bytes >> unit_shift,
+                               unit_name,
+                               percent_done);
+               }
                if (info->write_streams.completed_bytes >= info->write_streams.total_bytes)
                        imagex_printf(T("\n"));
                break;
@@ -1112,8 +1037,6 @@ imagex_progress_func(enum wimlib_progress_msg msg,
                else
                        imagex_printf(T("Scanning \"%"TS"\"\n"), info->scan.cur_path);
                break;
-       /*case WIMLIB_PROGRESS_MSG_SCAN_END:*/
-               /*break;*/
        case WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY:
                unit_shift = get_unit(info->integrity.total_bytes, &unit_name);
                percent_done = TO_PERCENT(info->integrity.completed_bytes,
@@ -1163,10 +1086,6 @@ imagex_progress_func(enum wimlib_progress_msg msg,
                        info->extract.wimfile_name,
                        info->extract.target);
                break;
-       /*case WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN:*/
-               /*imagex_printf(T("Applying directory structure to %"TS"\n"),*/
-                       /*info->extract.target);*/
-               /*break;*/
        case WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS:
                percent_done = TO_PERCENT(info->extract.completed_bytes,
                                          info->extract.total_bytes);
@@ -1191,21 +1110,6 @@ imagex_progress_func(enum wimlib_progress_msg msg,
                                info->extract.target);
                }
                break;
-       case WIMLIB_PROGRESS_MSG_JOIN_STREAMS:
-               percent_done = TO_PERCENT(info->join.completed_bytes,
-                                         info->join.total_bytes);
-               unit_shift = get_unit(info->join.total_bytes, &unit_name);
-               imagex_printf(T("Writing resources from part %u of %u: "
-                         "%"PRIu64 " %"TS" of %"PRIu64" %"TS" (%u%%) written\n"),
-                       (info->join.completed_parts == info->join.total_parts) ?
-                       info->join.completed_parts : info->join.completed_parts + 1,
-                       info->join.total_parts,
-                       info->join.completed_bytes >> unit_shift,
-                       unit_name,
-                       info->join.total_bytes >> unit_shift,
-                       unit_name,
-                       percent_done);
-               break;
        case WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART:
                percent_done = TO_PERCENT(info->split.completed_bytes,
                                          info->split.total_bytes);
@@ -1250,7 +1154,7 @@ imagex_progress_func(enum wimlib_progress_msg msg,
        default:
                break;
        }
-       fflush(stdout);
+       fflush(imagex_info_file);
        return 0;
 }
 
@@ -1542,7 +1446,7 @@ parse_update_command_file(tchar **cmd_file_contents_p, size_t cmd_file_nchars,
 /* Apply one image, or all images, from a WIM file into a directory, OR apply
  * one image from a WIM file to a NTFS volume.  */
 static int
-imagex_apply(int argc, tchar **argv)
+imagex_apply(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
@@ -1594,6 +1498,9 @@ imagex_apply(int argc, tchar **argv)
                        extract_flags |= WIMLIB_EXTRACT_FLAG_REPLACE_INVALID_FILENAMES;
                        extract_flags |= WIMLIB_EXTRACT_FLAG_ALL_CASE_CONFLICTS;
                        break;
+               case IMAGEX_RESUME_OPTION:
+                       extract_flags |= WIMLIB_EXTRACT_FLAG_RESUME;
+                       break;
                default:
                        goto out_usage;
                }
@@ -1607,14 +1514,13 @@ imagex_apply(int argc, tchar **argv)
 
        if (!tstrcmp(wimfile, T("-"))) {
                /* Attempt to apply pipable WIM from standard input.  */
-               if (argc < 3) {
-                       imagex_error(T("Imagex index or name must be explicitly "
-                                      "specified when applying pipable WIM on "
-                                      "standard input."));
-                       goto out_usage;
+               if (argc == 2) {
+                       image_num_or_name = NULL;
+                       target = argv[1];
+               } else {
+                       image_num_or_name = argv[1];
+                       target = argv[2];
                }
-               image_num_or_name = argv[1];
-               target = argv[2];
                wim = NULL;
                num_additional_swms = 0;
                additional_swms = NULL;
@@ -1681,9 +1587,6 @@ imagex_apply(int argc, tchar **argv)
        }
 #endif
 
-#ifdef __WIN32__
-       win32_acquire_restore_privileges();
-#endif
        if (wim) {
                ret = wimlib_extract_image(wim, image, target, extract_flags,
                                           additional_swms, num_additional_swms,
@@ -1697,9 +1600,6 @@ imagex_apply(int argc, tchar **argv)
        }
        if (ret == 0)
                imagex_printf(T("Done applying WIM image.\n"));
-#ifdef __WIN32__
-       win32_release_restore_privileges();
-#endif
 out_free_swms:
        for (unsigned i = 0; i < num_additional_swms; i++)
                wimlib_free(additional_swms[i]);
@@ -1710,7 +1610,7 @@ out:
        return ret;
 
 out_usage:
-       usage(APPLY);
+       usage(CMD_APPLY, stderr);
        ret = -1;
        goto out;
 }
@@ -1720,13 +1620,13 @@ out_usage:
  * the desired image.  'wimlib-imagex append': add a new image to an existing
  * WIM file. */
 static int
-imagex_capture_or_append(int argc, tchar **argv)
+imagex_capture_or_append(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = WIMLIB_OPEN_FLAG_WRITE_ACCESS;
        int add_image_flags = WIMLIB_ADD_IMAGE_FLAG_EXCLUDE_VERBOSE;
        int write_flags = 0;
-       int compression_type = WIMLIB_COMPRESSION_TYPE_XPRESS;
+       int compression_type = WIMLIB_COMPRESSION_TYPE_LZX;
        const tchar *wimfile;
        int wim_fd;
        const tchar *name;
@@ -1734,7 +1634,6 @@ imagex_capture_or_append(int argc, tchar **argv)
        const tchar *flags_element = NULL;
        WIMStruct *wim;
        int ret;
-       int cmd = tstrcmp(argv[0], T("append")) ? CAPTURE : APPEND;
        unsigned num_threads = 0;
 
        tchar *source;
@@ -1838,7 +1737,7 @@ imagex_capture_or_append(int argc, tchar **argv)
        #else
                write_flags |= WIMLIB_WRITE_FLAG_PIPABLE;
        #endif
-               if (cmd == APPEND) {
+               if (cmd == CMD_APPEND) {
                        imagex_error(T("Using standard output for append does "
                                       "not make sense."));
                        goto out_err;
@@ -1917,7 +1816,7 @@ imagex_capture_or_append(int argc, tchar **argv)
                config = &default_capture_config;
        }
 
-       if (cmd == APPEND)
+       if (cmd == CMD_APPEND)
                ret = wimlib_open_wim(wimfile, open_flags, &wim,
                                      imagex_progress_func);
        else
@@ -1946,7 +1845,7 @@ imagex_capture_or_append(int argc, tchar **argv)
        }
 #endif
 
-       if (cmd == APPEND && name_defaulted) {
+       if (cmd == CMD_APPEND && name_defaulted) {
                /* If the user did not specify an image name, and the basename
                 * of the source already exists as an image name in the WIM
                 * file, append a suffix to make it unique. */
@@ -1959,10 +1858,6 @@ imagex_capture_or_append(int argc, tchar **argv)
                        tsprintf(name_end, T(" (%lu)"), conflict_idx);
                }
        }
-#ifdef __WIN32__
-       win32_acquire_capture_privileges();
-#endif
-
        ret = wimlib_add_image_multisource(wim,
                                           capture_sources,
                                           num_sources,
@@ -1971,7 +1866,7 @@ imagex_capture_or_append(int argc, tchar **argv)
                                           add_image_flags,
                                           imagex_progress_func);
        if (ret)
-               goto out_release_privs;
+               goto out_wimlib_free;
 
        if (desc || flags_element) {
                /* User provided <DESCRIPTION> or <FLAGS> element.  Get the
@@ -1986,20 +1881,20 @@ imagex_capture_or_append(int argc, tchar **argv)
                                                          info.image_count,
                                                          desc);
                        if (ret)
-                               goto out_release_privs;
+                               goto out_wimlib_free;
                }
 
                if (flags_element) {
                        ret = wimlib_set_image_flags(wim, info.image_count,
                                                     flags_element);
                        if (ret)
-                               goto out_release_privs;
+                               goto out_wimlib_free;
                }
        }
 
        /* Write the new WIM or overwrite the existing WIM with the new image
         * appended.  */
-       if (cmd == APPEND) {
+       if (cmd == CMD_APPEND) {
                ret = wimlib_overwrite(wim, write_flags, num_threads,
                                       imagex_progress_func);
        } else if (wimfile) {
@@ -2011,10 +1906,6 @@ imagex_capture_or_append(int argc, tchar **argv)
                                         write_flags, num_threads,
                                         imagex_progress_func);
        }
-out_release_privs:
-#ifdef __WIN32__
-       win32_release_capture_privileges();
-#endif
 out_wimlib_free:
        wimlib_free(wim);
 out_free_config:
@@ -2032,7 +1923,7 @@ out:
        return ret;
 
 out_usage:
-       usage(cmd);
+       usage(cmd, stderr);
 out_err:
        ret = -1;
        goto out;
@@ -2040,7 +1931,7 @@ out_err:
 
 /* Remove image(s) from a WIM. */
 static int
-imagex_delete(int argc, tchar **argv)
+imagex_delete(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = WIMLIB_OPEN_FLAG_WRITE_ACCESS;
@@ -2106,7 +1997,7 @@ out:
        return ret;
 
 out_usage:
-       usage(DELETE);
+       usage(CMD_DELETE, stderr);
        ret = -1;
        goto out;
 }
@@ -2120,7 +2011,7 @@ print_full_path(const struct wimlib_dir_entry *wdentry, void *_ignore)
 
 /* Print the files contained in an image(s) in a WIM file. */
 static int
-imagex_dir(int argc, tchar **argv)
+imagex_dir(int argc, tchar **argv, int cmd)
 {
        const tchar *wimfile;
        WIMStruct *wim = NULL;
@@ -2187,7 +2078,7 @@ out:
        return ret;
 
 out_usage:
-       usage(DIR);
+       usage(CMD_DIR, stderr);
        ret = -1;
        goto out;
 }
@@ -2195,7 +2086,7 @@ out_usage:
 /* Exports one, or all, images from a WIM file to a new WIM file or an existing
  * WIM file. */
 static int
-imagex_export(int argc, tchar **argv)
+imagex_export(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = 0;
@@ -2399,7 +2290,7 @@ out:
        return ret;
 
 out_usage:
-       usage(EXPORT);
+       usage(CMD_EXPORT, stderr);
 out_err:
        ret = -1;
        goto out;
@@ -2468,7 +2359,7 @@ prepare_extract_commands(tchar **paths, unsigned num_paths,
 
 /* Extract files or directories from a WIM image */
 static int
-imagex_extract(int argc, tchar **argv)
+imagex_extract(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
@@ -2562,10 +2453,6 @@ imagex_extract(int argc, tchar **argv)
                num_additional_swms = 0;
        }
 
-#ifdef __WIN32__
-       win32_acquire_restore_privileges();
-#endif
-
        ret = wimlib_extract_files(wim, image, cmds, num_cmds, 0,
                                   additional_swms, num_additional_swms,
                                   imagex_progress_func);
@@ -2573,13 +2460,11 @@ imagex_extract(int argc, tchar **argv)
                if (!imagex_be_quiet)
                        imagex_printf(T("Done extracting files.\n"));
        } else if (ret == WIMLIB_ERR_PATH_DOES_NOT_EXIST) {
-               tfprintf(stderr, T("Note: You can use `"IMAGEX_PROGNAME" dir' to see what "
+               tfprintf(stderr, T("Note: You can use `%"TS"' to see what "
                                   "files and directories\n"
-                                  "      are in the WIM image.\n"));
+                                  "      are in the WIM image.\n"),
+                               get_cmd_string(CMD_INFO, false));
        }
-#ifdef __WIN32__
-       win32_release_restore_privileges();
-#endif
        for (unsigned i = 0; i < num_additional_swms; i++)
                wimlib_free(additional_swms[i]);
        free(additional_swms);
@@ -2591,7 +2476,7 @@ out:
        return ret;
 
 out_usage:
-       usage(EXTRACT);
+       usage(CMD_EXTRACT, stderr);
 out_err:
        ret = -1;
        goto out;
@@ -2672,7 +2557,7 @@ print_lookup_table(WIMStruct *wim)
 /* Prints information about a WIM file; also can mark an image as bootable,
  * change the name of an image, or change the description of an image. */
 static int
-imagex_info(int argc, tchar **argv)
+imagex_info(int argc, tchar **argv, int cmd)
 {
        int c;
        bool boot         = false;
@@ -2939,7 +2824,7 @@ out:
        return ret;
 
 out_usage:
-       usage(INFO);
+       usage(CMD_INFO, stderr);
 out_err:
        ret = -1;
        goto out;
@@ -2947,7 +2832,7 @@ out_err:
 
 /* Join split WIMs into one part WIM */
 static int
-imagex_join(int argc, tchar **argv)
+imagex_join(int argc, tchar **argv, int cmd)
 {
        int c;
        int swm_open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
@@ -2984,14 +2869,16 @@ out:
        return ret;
 
 out_usage:
-       usage(JOIN);
+       usage(CMD_JOIN, stderr);
        ret = -1;
        goto out;
 }
 
-/* Mounts an image using a FUSE mount. */
+#if WIM_MOUNTING_SUPPORTED
+
+/* Mounts a WIM image.  */
 static int
-imagex_mount_rw_or_ro(int argc, tchar **argv)
+imagex_mount_rw_or_ro(int argc, tchar **argv, int cmd)
 {
        int c;
        int mount_flags = 0;
@@ -3006,7 +2893,7 @@ imagex_mount_rw_or_ro(int argc, tchar **argv)
        WIMStruct **additional_swms;
        unsigned num_additional_swms;
 
-       if (!tstrcmp(argv[0], T("mountrw"))) {
+       if (cmd == CMD_MOUNTRW) {
                mount_flags |= WIMLIB_MOUNT_FLAG_READWRITE;
                open_flags |= WIMLIB_OPEN_FLAG_WRITE_ACCESS;
        }
@@ -3109,15 +2996,15 @@ out:
        return ret;
 
 out_usage:
-       usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
-                       ? MOUNTRW : MOUNT);
+       usage(cmd, stderr);
        ret = -1;
        goto out;
 }
+#endif /* WIM_MOUNTING_SUPPORTED */
 
 /* Rebuild a WIM file */
 static int
-imagex_optimize(int argc, tchar **argv)
+imagex_optimize(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = WIMLIB_OPEN_FLAG_WRITE_ACCESS;
@@ -3203,7 +3090,7 @@ out:
        return ret;
 
 out_usage:
-       usage(OPTIMIZE);
+       usage(CMD_OPTIMIZE, stderr);
 out_err:
        ret = -1;
        goto out;
@@ -3211,7 +3098,7 @@ out_err:
 
 /* Split a WIM into a spanned set */
 static int
-imagex_split(int argc, tchar **argv)
+imagex_split(int argc, tchar **argv, int cmd)
 {
        int c;
        int open_flags = 0;
@@ -3254,15 +3141,16 @@ out:
        return ret;
 
 out_usage:
-       usage(SPLIT);
+       usage(CMD_SPLIT, stderr);
 out_err:
        ret = -1;
        goto out;
 }
 
+#if WIM_MOUNTING_SUPPORTED
 /* Unmounts a mounted WIM image. */
 static int
-imagex_unmount(int argc, tchar **argv)
+imagex_unmount(int argc, tchar **argv, int cmd)
 {
        int c;
        int unmount_flags = 0;
@@ -3299,16 +3187,17 @@ out:
        return ret;
 
 out_usage:
-       usage(UNMOUNT);
+       usage(CMD_UNMOUNT, stderr);
        ret = -1;
        goto out;
 }
+#endif /* WIM_MOUNTING_SUPPORTED */
 
 /*
  * Add, delete, or rename files in a WIM image.
  */
 static int
-imagex_update(int argc, tchar **argv)
+imagex_update(int argc, tchar **argv, int cmd)
 {
        const tchar *wimfile;
        int image;
@@ -3453,7 +3342,7 @@ imagex_update(int argc, tchar **argv)
        } else {
                if (isatty(STDIN_FILENO)) {
                        tputs(T("Reading update commands from standard input..."));
-                       recommend_man_page(T("update"));
+                       recommend_man_page(CMD_UPDATE, stdout);
                }
                cmd_file_contents = stdin_get_text_contents(&cmd_file_nchars);
                if (!cmd_file_contents) {
@@ -3487,25 +3376,16 @@ imagex_update(int argc, tchar **argv)
                }
        }
 
-#ifdef __WIN32__
-       if (have_add_command)
-               win32_acquire_capture_privileges();
-#endif
-
        /* Execute the update commands */
        ret = wimlib_update_image(wim, image, cmds, num_cmds, update_flags,
                                  imagex_progress_func);
        if (ret)
-               goto out_release_privs;
+               goto out_free_cmds;
 
        /* Overwrite the updated WIM */
        ret = wimlib_overwrite(wim, write_flags, num_threads,
                               imagex_progress_func);
-out_release_privs:
-#ifdef __WIN32__
-       if (have_add_command)
-               win32_release_capture_privileges();
-#endif
+out_free_cmds:
        free(cmds);
 out_free_cmd_file_contents:
        free(cmd_file_contents);
@@ -3522,40 +3402,163 @@ out_free_command_str:
        return ret;
 
 out_usage:
-       usage(UPDATE);
+       usage(CMD_UPDATE, stderr);
 out_err:
        ret = -1;
        goto out_free_command_str;
 }
 
+
+
 struct imagex_command {
        const tchar *name;
-       int (*func)(int , tchar **);
-       int cmd;
+       int (*func)(int argc, tchar **argv, int cmd);
 };
 
-
-#define for_imagex_command(p) for (p = &imagex_commands[0]; \
-               p != &imagex_commands[ARRAY_LEN(imagex_commands)]; p++)
-
 static const struct imagex_command imagex_commands[] = {
-       {T("append"),  imagex_capture_or_append, APPEND},
-       {T("apply"),   imagex_apply,             APPLY},
-       {T("capture"), imagex_capture_or_append, CAPTURE},
-       {T("delete"),  imagex_delete,            DELETE},
-       {T("dir"),     imagex_dir,               DIR},
-       {T("export"),  imagex_export,            EXPORT},
-       {T("extract"), imagex_extract,           EXTRACT},
-       {T("info"),    imagex_info,              INFO},
-       {T("join"),    imagex_join,              JOIN},
-       {T("mount"),   imagex_mount_rw_or_ro,    MOUNT},
-       {T("mountrw"), imagex_mount_rw_or_ro,    MOUNTRW},
-       {T("optimize"),imagex_optimize,          OPTIMIZE},
-       {T("split"),   imagex_split,             SPLIT},
-       {T("unmount"), imagex_unmount,           UNMOUNT},
-       {T("update"),  imagex_update,            UPDATE},
+       [CMD_APPEND]   = {T("append"),   imagex_capture_or_append},
+       [CMD_APPLY]    = {T("apply"),    imagex_apply},
+       [CMD_CAPTURE]  = {T("capture"),  imagex_capture_or_append},
+       [CMD_DELETE]   = {T("delete"),   imagex_delete},
+       [CMD_DIR ]     = {T("dir"),      imagex_dir},
+       [CMD_EXPORT]   = {T("export"),   imagex_export},
+       [CMD_EXTRACT]  = {T("extract"),  imagex_extract},
+       [CMD_INFO]     = {T("info"),     imagex_info},
+       [CMD_JOIN]     = {T("join"),     imagex_join},
+#if WIM_MOUNTING_SUPPORTED
+       [CMD_MOUNT]    = {T("mount"),    imagex_mount_rw_or_ro},
+       [CMD_MOUNTRW]  = {T("mountrw"),  imagex_mount_rw_or_ro},
+#endif
+       [CMD_OPTIMIZE] = {T("optimize"), imagex_optimize},
+       [CMD_SPLIT]    = {T("split"),    imagex_split},
+#if WIM_MOUNTING_SUPPORTED
+       [CMD_UNMOUNT]  = {T("unmount"),  imagex_unmount},
+#endif
+       [CMD_UPDATE]   = {T("update"),   imagex_update},
+};
+
+static const tchar *usage_strings[] = {
+[CMD_APPEND] =
+T(
+"    %"TS" (DIRECTORY | NTFS_VOLUME) WIMFILE\n"
+"                    [IMAGE_NAME [IMAGE_DESCRIPTION]] [--boot] [--check]\n"
+"                    [--nocheck] [--flags EDITION_ID] [--verbose]\n"
+"                    [--dereference] [--config=FILE] [--threads=NUM_THREADS]\n"
+"                    [--rebuild] [--unix-data] [--source-list] [--no-acls]\n"
+"                    [--strict-acls] [--rpfix] [--norpfix] [--pipable]\n"
+"                    [--not-pipable]\n"
+),
+[CMD_APPLY] =
+T(
+"    %"TS" WIMFILE [(IMAGE_NUM | IMAGE_NAME | all)]\n"
+"                    (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
+"                    [--symlink] [--verbose] [--ref=\"GLOB\"] [--unix-data]\n"
+"                    [--no-acls] [--strict-acls] [--rpfix] [--norpfix]\n"
+"                    [--include-invalid-names] [--resume]\n"
+),
+[CMD_CAPTURE] =
+T(
+"    %"TS" (DIRECTORY | NTFS_VOLUME) WIMFILE\n"
+"                   [IMAGE_NAME [IMAGE_DESCRIPTION]] [--boot] [--check]\n"
+"                    [--nocheck] [--compress=TYPE] [--flags EDITION_ID]\n"
+"                    [--verbose] [--dereference] [--config=FILE]\n"
+"                    [--threads=NUM_THREADS] [--unix-data] [--source-list]\n"
+"                    [--no-acls] [--strict-acls] [--rpfix] [--norpfix]\n"
+"                    [--pipable] [--not-pipable]\n"
+),
+[CMD_DELETE] =
+T(
+"    %"TS" WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check]\n"
+"                    [--soft]\n"
+),
+[CMD_DIR] =
+T(
+"    %"TS" WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--path=PATH]\n"
+),
+[CMD_EXPORT] =
+T(
+"    %"TS" SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
+"                    DEST_WIMFILE [DEST_IMAGE_NAME [DEST_IMAGE_DESCRIPTION]]\n"
+"                    [--boot] [--check] [--nocheck] [--compress=TYPE]\n"
+"                    [--ref=\"GLOB\"] [--threads=NUM_THREADS] [--rebuild]\n"
+"                    [--pipable] [--not-pipable]\n"
+),
+[CMD_EXTRACT] =
+T(
+"    %"TS" WIMFILE (IMAGE_NUM | IMAGE_NAME) [PATH...]\n"
+"                    [--check] [--ref=\"GLOB\"] [--verbose] [--unix-data]\n"
+"                    [--no-acls] [--strict-acls] [--to-stdout]\n"
+"                    [--dest-dir=CMD_DIR] [--include-invalid-names]\n"
+),
+[CMD_INFO] =
+T(
+"    %"TS" WIMFILE [(IMAGE_NUM | IMAGE_NAME) [NEW_NAME\n"
+"                    [NEW_DESC]]] [--boot] [--check] [--nocheck] [--header]\n"
+"                    [--lookup-table] [--xml] [--extract-xml FILE]\n"
+"                    [--metadata]\n"
+),
+[CMD_JOIN] =
+T(
+"    %"TS" OUT_WIMFILE SPLIT_WIM_PART... [--check]\n"
+),
+#if WIM_MOUNTING_SUPPORTED
+[CMD_MOUNT] =
+T(
+"    %"TS" WIMFILE [(IMAGE_NUM | IMAGE_NAME)] DIRECTORY\n"
+"                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
+"                    [--ref=\"GLOB\"] [--unix-data] [--allow-other]\n"
+),
+[CMD_MOUNTRW] =
+T(
+"    %"TS" WIMFILE [(IMAGE_NUM | IMAGE_NAME)] DIRECTORY\n"
+"                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
+"                    [--staging-dir=CMD_DIR] [--unix-data] [--allow-other]\n"
+),
+#endif
+[CMD_OPTIMIZE] =
+T(
+"    %"TS" WIMFILE [--check] [--nocheck] [--recompress]\n"
+"                    [--threads=NUM_THREADS] [--pipable] [--not-pipable]\n"
+),
+[CMD_SPLIT] =
+T(
+"    %"TS" WIMFILE SPLIT_WIM_PART_1 PART_SIZE_MB [--check]\n"
+),
+#if WIM_MOUNTING_SUPPORTED
+[CMD_UNMOUNT] =
+T(
+"    %"TS" DIRECTORY [--commit] [--check] [--rebuild] [--lazy]\n"
+),
+#endif
+[CMD_UPDATE] =
+T(
+"    %"TS" WIMFILE [IMAGE_NUM | IMAGE_NAME] [--check] [--rebuild]\n"
+"                    [--threads=NUM_THREADS] [DEFAULT_ADD_OPTIONS]\n"
+"                    [DEFAULT_DELETE_OPTIONS] [--command=STRING] [< CMDFILE]\n"
+),
 };
 
+static const tchar *invocation_name;
+static bool using_cmd_from_invocation_name = false;
+
+static const tchar *get_cmd_string(int cmd, bool nospace)
+{
+
+       if (using_cmd_from_invocation_name || cmd == CMD_NONE) {
+               return invocation_name;
+       } else {
+               const tchar *format;
+               static tchar buf[50];
+
+               if (nospace)
+                       format = T("%"TS"-%"TS"");
+               else
+                       format = T("%"TS" %"TS"");
+               tsprintf(buf, format, invocation_name, imagex_commands[cmd].name);
+               return buf;
+       }
+}
+
 static void
 version(void)
 {
@@ -3574,67 +3577,74 @@ IMAGEX_PROGNAME " (" PACKAGE ") " PACKAGE_VERSION "\n"
 
 
 static void
-help_or_version(int argc, tchar **argv)
+help_or_version(int argc, tchar **argv, int cmd)
 {
        int i;
        const tchar *p;
-       const struct imagex_command *cmd;
 
        for (i = 1; i < argc; i++) {
                p = argv[i];
-               if (*p == T('-'))
-                       p++;
-               else
-                       continue;
-               if (*p == T('-'))
-                       p++;
-               if (!tstrcmp(p, T("help"))) {
-                       for_imagex_command(cmd) {
-                               if (!tstrcmp(cmd->name, argv[1])) {
-                                       usage(cmd->cmd);
-                                       exit(0);
-                               }
+               if (p[0] == T('-') && p[1] == T('-')) {
+                       p += 2;
+                       if (!tstrcmp(p, T("help"))) {
+                               if (cmd == CMD_NONE)
+                                       usage_all(stdout);
+                               else
+                                       usage(cmd, stdout);
+                               exit(0);
+                       } else if (!tstrcmp(p, T("version"))) {
+                               version();
+                               exit(0);
                        }
-                       usage_all();
-                       exit(0);
-               }
-               if (!tstrcmp(p, T("version"))) {
-                       version();
-                       exit(0);
                }
        }
 }
 
+static void
+print_usage_string(int cmd, FILE *fp)
+{
+       tfprintf(fp, usage_strings[cmd], get_cmd_string(cmd, false));
+}
 
 static void
-usage(int cmd_type)
+recommend_man_page(int cmd, FILE *fp)
 {
-       const struct imagex_command *cmd;
-       tprintf(T("Usage:\n%"TS), usage_strings[cmd_type]);
-       for_imagex_command(cmd) {
-               if (cmd->cmd == cmd_type) {
-                       tputc(T('\n'), stdout);
-                       recommend_man_page(cmd->name);
-               }
-       }
+       const tchar *format_str;
+#ifdef __WIN32__
+       format_str = T("See %"TS".pdf in the doc directory for more details.\n");
+#else
+       format_str = T("Try `man %"TS"' for more details.\n");
+#endif
+       tfprintf(fp, format_str, get_cmd_string(cmd, true));
 }
 
 static void
-usage_all(void)
+usage(int cmd, FILE *fp)
 {
-       tfputs(T("Usage:\n"), stdout);
-       for (int i = 0; i < ARRAY_LEN(usage_strings); i++)
-               tprintf(T("    %"TS"\n"), usage_strings[i]);
+       tfprintf(fp, T("Usage:\n"));
+       print_usage_string(cmd, fp);
+       tfprintf(fp, T("\n"));
+       recommend_man_page(cmd, fp);
+}
+
+static void
+usage_all(FILE *fp)
+{
+       tfprintf(fp, T("Usage:\n"));
+       for (int cmd = 0; cmd < CMD_MAX; cmd++) {
+               print_usage_string(cmd, fp);
+               tfprintf(fp, T("\n"));
+       }
        static const tchar *extra =
        T(
-"    "IMAGEX_PROGNAME" --help\n"
-"    "IMAGEX_PROGNAME" --version\n"
+"    %"TS" --help\n"
+"    %"TS" --version\n"
 "\n"
 "    The compression TYPE may be \"maximum\", \"fast\", or \"none\".\n"
 "\n"
        );
-       tfputs(extra, stdout);
-       recommend_man_page(T(""));
+       tfprintf(fp, extra, invocation_name, invocation_name);
+       recommend_man_page(CMD_NONE, fp);
 }
 
 /* Entry point for wimlib's ImageX implementation.  On UNIX the command
@@ -3648,11 +3658,12 @@ wmain(int argc, wchar_t **argv, wchar_t **envp)
 main(int argc, char **argv)
 #endif
 {
-       const struct imagex_command *cmd;
        int ret;
        int init_flags = 0;
+       int cmd;
 
        imagex_info_file = stdout;
+       invocation_name = tbasename(argv[0]);
 
 #ifndef __WIN32__
        if (getenv("WIMLIB_IMAGEX_USE_UTF8")) {
@@ -3667,67 +3678,89 @@ main(int argc, char **argv)
                    !strstr(codeset, "utf-8") &&
                    !strstr(codeset, "utf8"))
                {
-                       fputs(
-"WARNING: Running "IMAGEX_PROGNAME" in a UTF-8 locale is recommended!\n"
+                       fprintf(stderr,
+"WARNING: Running %"TS" in a UTF-8 locale is recommended!\n"
 "         Maybe try: `export LANG=en_US.UTF-8'?\n"
 "         Alternatively, set the environmental variable WIMLIB_IMAGEX_USE_UTF8\n"
 "         to any value to force wimlib to use UTF-8.\n",
-                       stderr);
+                       invocation_name);
 
                }
        }
 #endif /* !__WIN32__ */
 
-       if (argc < 2) {
-               imagex_error(T("No command specified"));
-               usage_all();
-               ret = 2;
-               goto out;
+       /* Allow being invoked as wimCOMMAND (e.g. wimapply).  */
+       cmd = CMD_NONE;
+       if (!tstrncmp(invocation_name, T("wim"), 3) &&
+           tstrcmp(invocation_name, T(IMAGEX_PROGNAME))) {
+               for (int i = 0; i < CMD_MAX; i++) {
+                       if (!tstrcmp(invocation_name + 3,
+                                    imagex_commands[i].name))
+                       {
+                               using_cmd_from_invocation_name = true;
+                               cmd = i;
+                               break;
+                       }
+               }
+       }
+
+       /* Unless already known from the invocation name, determine which
+        * command was specified.  */
+       if (cmd == CMD_NONE) {
+               if (argc < 2) {
+                       imagex_error(T("No command specified!\n"));
+                       usage_all(stderr);
+                       exit(2);
+               }
+               for (int i = 0; i < CMD_MAX; i++) {
+                       if (!tstrcmp(argv[1], imagex_commands[i].name)) {
+                               cmd = i;
+                               break;
+                       }
+               }
+               if (cmd != CMD_NONE) {
+                       argc--;
+                       argv++;
+               }
        }
 
-       /* Handle --help and --version for all commands.  Note that this will
-        * not return if either of these arguments are present. */
-       help_or_version(argc, argv);
-       argc--;
-       argv++;
+       /* Handle --help and --version.  --help can be either for the program as
+        * a whole (cmd == CMD_NONE) or just for a specific command (cmd !=
+        * CMD_NONE).  Note: help_or_version() will not return if a --help or
+        * --version argument was found.  */
+       help_or_version(argc, argv, cmd);
+
+       /* Bail if a valid command was not specified.  */
+       if (cmd == CMD_NONE) {
+               imagex_error(T("Unrecognized command: `%"TS"'\n"), argv[1]);
+               usage_all(stderr);
+               exit(2);
+       }
 
-       /* The user may like to see more informative error messages. */
+       /* Enable warning and error messages in wimlib be more user-friendly.
+        * */
        wimlib_set_print_errors(true);
 
-       /* Do any initializations that the library needs */
+       /* Initialize wimlib.  */
        ret = wimlib_global_init(init_flags);
        if (ret)
                goto out_check_status;
 
-       /* Search for the function to handle the ImageX subcommand. */
-       for_imagex_command(cmd) {
-               if (!tstrcmp(cmd->name, *argv)) {
-                       ret = cmd->func(argc, argv);
-                       goto out_check_write_error;
-               }
-       }
-
-       imagex_error(T("Unrecognized command: `%"TS"'"), argv[0]);
-       usage_all();
-       ret = 2;
-       goto out_cleanup;
-out_check_write_error:
-       /* For 'wimlib-imagex info' and 'wimlib-imagex dir', data printed to
-        * standard output is part of the program's actual behavior and not just
-        * for informational purposes, so we should set a failure exit status if
-        * there was a write error. */
-       if (cmd == &imagex_commands[INFO] || cmd == &imagex_commands[DIR]) {
-               if (ferror(stdout) || fclose(stdout)) {
-                       imagex_error_with_errno(T("error writing to standard output"));
-                       if (ret == 0)
-                               ret = -1;
-               }
+       /* Call the command handler function.  */
+       ret = imagex_commands[cmd].func(argc, argv, cmd);
+
+       /* Check for error writing to standard output, especially since for some
+        * commands, writing to standard output is part of the program's actual
+        * behavior and not just for informational purposes.  */
+       if (ferror(stdout) || fclose(stdout)) {
+               imagex_error_with_errno(T("error writing to standard output"));
+               if (ret == 0)
+                       ret = -1;
        }
 out_check_status:
        /* Exit status (ret):  -1 indicates an error found by 'wimlib-imagex'
-        * outside of the wimlib library code.  0 indicates success.  > 0
-        * indicates a wimlib error code from which an error message can be
-        * printed. */
+        * itself (not by wimlib).  0 indicates success.  > 0 indicates a wimlib
+        * error code from which an error message can be printed.  */
        if (ret > 0) {
                imagex_error(T("Exiting with error code %d:\n"
                               "       %"TS"."), ret,
@@ -3735,10 +3768,8 @@ out_check_status:
                if (ret == WIMLIB_ERR_NTFS_3G && errno != 0)
                        imagex_error_with_errno(T("errno"));
        }
-out_cleanup:
-       /* Make the library free any resources it's holding (not strictly
-        * necessary because the process is ending anyway). */
+       /* Make wimlib free any resources it's holding (although this is not
+        * strictly necessary because the process is ending anyway).  */
        wimlib_global_cleanup();
-out:
        return ret;
 }