Add conditional support for -v / --verbose

With FEATURE_VERBOSE off, practically no size change.
With it on:

function                                             old     new   delta
remove_file                                          493     556     +63
install_main                                         719     765     +46
bb_make_directory                                    383     419     +36
rmdir_main                                           162     191     +29
copy_file                                           1516    1544     +28
mv_main                                              502     525     +23
cmp_main                                             677     693     +16
bbconfig_config_bz2                                 5264    5279     +15
mkdir_main                                           158     168     +10
install_longopts                                      66      76     +10
rm_main                                              167     175      +8
nexpr                                                840     846      +6
scan_tree                                            275     280      +5
fsck_main                                           1807    1811      +4
ed_main                                             2541    2545      +4
expand_one_var                                      1574    1575      +1
swap_on_off_main                                     420     418      -2
parse_command                                       1443    1440      -3
redirect                                            1279    1274      -5
do_load                                              946     918     -28
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 16/4 up/down: 304/-38)          Total: 266 bytes

Based on the patch by Igor Živković.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

3 files changed, 16 insertions, 0 deletions

diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 9333a8d49..a4be875d2 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -389,5 +389,9 @@ int FAST_FUNC copy_file(const char *source, const char *dest, int flags)
                         bb_perror_msg("can't preserve %s of '%s'", "permissions", dest);
         }
 
+        if (flags & FILEUTILS_VERBOSE) {
+                printf("'%s' -> '%s'\n", source, dest);
+        }
+
         return retval;
 }
diff --git a/libbb/make_directory.c b/libbb/make_directory.c
index 7826b90f5..89352ca1f 100644
--- a/libbb/make_directory.c
+++ b/libbb/make_directory.c
@@ -99,6 +99,10 @@ int FAST_FUNC bb_make_directory(char *path, long mode, int flags)
                         if (!c) {
                                 goto ret0;
                         }
+                } else {
+                        if (flags & FILEUTILS_VERBOSE) {
+                                printf("created directory: '%s'\n", path);
+                        }
                 }
 
                 if (!c) {
diff --git a/libbb/remove_file.c b/libbb/remove_file.c
index 5b75f7f30..eaca293d9 100644
--- a/libbb/remove_file.c
+++ b/libbb/remove_file.c
@@ -78,6 +78,10 @@ int FAST_FUNC remove_file(const char *path, int flags)
                         return -1;
                 }
 
+                if (flags & FILEUTILS_VERBOSE) {
+                        printf("removed directory: '%s'\n", path);
+                }
+
                 return status;
         }
 
@@ -98,5 +102,9 @@ int FAST_FUNC remove_file(const char *path, int flags)
                 return -1;
         }
 
+        if (flags & FILEUTILS_VERBOSE) {
+                printf("removed '%s'\n", path);
+        }
+
         return 0;
 }