btrfs-progs: mkfs: more verbose output for --rootdir

Print the source directory for --rootdir and if --shrink is used. With
-vv then print the individual files as added:

  $ mkfs.btrfs --rootdir dir --shrink -vv img
  ...
  Rootdir from:       Documentation
  ADD: /btrfs-progs/Documentation/btrfs-check.rst
  ...
  ADD: /btrfs-progs/Documentation/btrfs-send.rst
    Shrink:           yes
  Label:              (null)
  UUID:               40d3a16f-02d8-40d7-824b-239cee528093
  ...

The 'Rootdir from' is printed before the files are added so there's now
message before the files are added which could take some time.

Issue: #627
Signed-off-by: David Sterba <dsterba@suse.com>

mkfs/main.c

@@ -1721,12 +1721,14 @@ raid_groups:
 	}
 
 	if (source_dir) {
-		ret = btrfs_mkfs_fill_dir(source_dir, root, bconf.verbose);
+		pr_verbose(LOG_DEFAULT, "Rootdir from:       %s\n", source_dir);
+		ret = btrfs_mkfs_fill_dir(source_dir, root);
 		if (ret) {
 			error("error while filling filesystem: %d", ret);
 			goto out;
 		}
 		if (shrink_rootdir) {
+			pr_verbose(LOG_DEFAULT, "  Shrink:           yes\n");
 			ret = btrfs_mkfs_shrink_fs(fs_info, &shrink_size,
 						   shrink_rootdir);
 			if (ret < 0) {
@@ -1734,6 +1736,8 @@ raid_groups:
 					ret);
 				goto out;
 			}
+		} else {
+			pr_verbose(LOG_DEFAULT, "  Shrink:           no\n");
 		}
 	}
 
@@ -1783,9 +1787,8 @@ raid_groups:
 		btrfs_parse_runtime_features_to_string(features_buf, &features);
 		printf("Runtime features:   %s\n", features_buf);
 #endif
-		printf("Checksum:           %s",
+		printf("Checksum:           %s\n",
 		       btrfs_super_csum_name(mkfs_cfg.csum_type));
-		printf("\n");
 
 		list_all_devices(root);
 

mkfs/rootdir.c

@@ -39,6 +39,7 @@
 #include "common/internal.h"
 #include "common/messages.h"
 #include "common/path-utils.h"
+#include "common/utils.h"
 #include "mkfs/rootdir.h"
 
 static u32 fs_block_size;
@@ -510,6 +511,8 @@ static int traverse_directory(struct btrfs_trans_handle *trans,
 		}
 
 		for (i = 0; i < count; i++) {
+			char tmp[PATH_MAX];
+
 			cur_file = files[i];
 
 			if (lstat(cur_file->d_name, &st) == -1) {
@@ -518,6 +521,10 @@ static int traverse_directory(struct btrfs_trans_handle *trans,
 				ret = -1;
 				goto fail;
 			}
+			if (bconf.verbose >= LOG_INFO) {
+				path_cat_out(tmp, parent_dir_entry->path, cur_file->d_name);
+				pr_verbose(LOG_INFO, "ADD: %s\n", tmp);
+			}
 
 			/*
 			 * We can not directly use the source ino number,
@@ -566,8 +573,6 @@ static int traverse_directory(struct btrfs_trans_handle *trans,
 			}
 
 			if (S_ISDIR(st.st_mode)) {
-				char tmp[PATH_MAX];
-
 				dir_entry = malloc(sizeof(*dir_entry));
 				if (!dir_entry) {
 					ret = -ENOMEM;
@@ -631,8 +636,7 @@ fail_no_dir:
 	goto out;
 }
 
-int btrfs_mkfs_fill_dir(const char *source_dir, struct btrfs_root *root,
+int btrfs_mkfs_fill_dir(const char *source_dir, struct btrfs_root *root)
-			bool verbose)
 {
 	int ret;
 	struct btrfs_trans_handle *trans;
@@ -669,8 +673,6 @@ int btrfs_mkfs_fill_dir(const char *source_dir, struct btrfs_root *root,
 		goto out;
 	}
 
-	if (verbose)
-		printf("Making image is completed.\n");
 	return 0;
 fail:
 	/*

mkfs/rootdir.h

@@ -36,8 +36,7 @@ struct directory_name_entry {
 	struct list_head list;
 };
 
-int btrfs_mkfs_fill_dir(const char *source_dir, struct btrfs_root *root,
+int btrfs_mkfs_fill_dir(const char *source_dir, struct btrfs_root *root);
-			bool verbose);
 u64 btrfs_mkfs_size_dir(const char *dir_name, u32 sectorsize, u64 min_dev_size,
 			u64 meta_profile, u64 data_profile);
 int btrfs_mkfs_shrink_fs(struct btrfs_fs_info *fs_info, u64 *new_size_ret,