Commit | Line | Data |
---|---|---|
07b2cce7 MP |
1 | Greetings, and thanks for all of your work on the wonderful rsync! |
2 | ||
3 | I recently had the need to transfer files only with different mod | |
4 | dates (and to *not* transfer them based on file size differences). | |
5 | This is because I'm backing up files remotely on an untrusted machine, | |
6 | so I'm encrypting them with gpg before transfer. I discovered that | |
7 | rsync didn't already have a --date-only flag, so I added one and am | |
8 | enclosing the diffs in case you (as I hope) decide to include this | |
9 | option in future releases. | |
10 | ||
11 | Again, thanks! | |
12 | ||
13 | Best Regards, | |
14 | Jeremy Bornstein | |
c66bc26c WD |
15 | |
16 | [Patched update to have context and apply to latest CVS source.] | |
17 | ||
18 | --- generator.c 10 Feb 2004 22:56:16 -0000 1.75 | |
19 | +++ generator.c 24 Feb 2004 19:17:31 -0000 | |
20 | @@ -43,11 +43,14 @@ | |
21 | extern int always_checksum; | |
22 | extern char *compare_dest; | |
23 | extern int link_dest; | |
24 | +extern int date_only; | |
25 | ||
26 | ||
27 | /* choose whether to skip a particular file */ | |
28 | static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st) | |
29 | { | |
30 | + if (date_only) | |
31 | + return cmp_modtime(st->st_mtime,file->modtime) == 0; | |
32 | if (st->st_size != file->length) { | |
33 | return 0; | |
34 | } | |
35 | --- options.c 22 Feb 2004 08:56:43 -0000 1.139 | |
36 | +++ options.c 24 Feb 2004 19:17:31 -0000 | |
37 | @@ -80,6 +80,7 @@ | |
38 | int safe_symlinks = 0; | |
39 | int copy_unsafe_links = 0; | |
40 | int size_only = 0; | |
41 | +int date_only = 0; | |
42 | int bwlimit = 0; | |
43 | int delete_after = 0; | |
44 | int only_existing = 0; | |
45 | @@ -260,6 +261,7 @@ | |
46 | rprintf(F," --timeout=TIME set I/O timeout in seconds\n"); | |
47 | rprintf(F," -I, --ignore-times turn off mod time & file size quick check\n"); | |
48 | rprintf(F," --size-only ignore mod time for quick check (use size)\n"); | |
49 | + rprintf(F," --date-only ignore size for quick check (use mod time)\n"); | |
50 | rprintf(F," --modify-window=NUM compare mod times with reduced accuracy\n"); | |
51 | rprintf(F," -T --temp-dir=DIR create temporary files in directory DIR\n"); | |
52 | rprintf(F," --compare-dest=DIR also compare destination files relative to DIR\n"); | |
53 | @@ -314,6 +316,7 @@ | |
54 | {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 }, | |
55 | {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 }, | |
56 | {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 }, | |
57 | + {"date-only", 0, POPT_ARG_NONE, &date_only, 0, 0, 0 }, | |
58 | {"modify-window", 0, POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 }, | |
59 | {"one-file-system", 'x', POPT_ARG_NONE, &one_file_system, 0, 0, 0 }, | |
60 | {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 }, | |
61 | @@ -886,6 +889,9 @@ | |
62 | ||
63 | if (size_only) | |
64 | args[ac++] = "--size-only"; | |
65 | + | |
66 | + if (date_only) | |
67 | + args[ac++] = "--date-only"; | |
68 | ||
69 | if (modify_window_set) { | |
70 | if (asprintf(&arg, "--modify-window=%d", modify_window) < 0) | |
71 | --- rsync.1 2 Feb 2004 18:23:09 -0000 1.163 | |
72 | +++ rsync.1 24 Feb 2004 19:17:32 -0000 | |
73 | @@ -357,6 +357,7 @@ | |
74 | --timeout=TIME set I/O timeout in seconds | |
75 | -I, --ignore-times turn off mod time & file size quick check | |
76 | --size-only ignore mod time for quick check (use size) | |
77 | + --date-only ignore size for quick check (use mod time) | |
78 | --modify-window=NUM compare mod times with reduced accuracy | |
79 | -T --temp-dir=DIR create temporary files in directory DIR | |
80 | --compare-dest=DIR also compare received files relative to DIR | |
81 | @@ -435,6 +436,13 @@ | |
82 | regardless of timestamp\&. This is useful when starting to use rsync | |
83 | after using another mirroring system which may not preserve timestamps | |
84 | exactly\&. | |
85 | +.IP | |
86 | +.IP "\fB--date-only\fP" | |
87 | +Normally rsync will skip any files that are | |
88 | +already the same size and have the same modification time-stamp\&. With the | |
89 | +--date-only option, files will be skipped if they have the same | |
90 | +timestamp, regardless of size\&. This may be useful when the remote | |
91 | +files have passed through a size-changing filter, e\&.g\&. for encryption\&. | |
92 | .IP | |
93 | .IP "\fB--modify-window\fP" | |
94 | When comparing two timestamps rsync treats | |
95 | --- rsync.yo 2 Feb 2004 18:23:09 -0000 1.147 | |
96 | +++ rsync.yo 24 Feb 2004 19:17:33 -0000 | |
97 | @@ -320,6 +320,7 @@ | |
98 | --timeout=TIME set I/O timeout in seconds | |
99 | -I, --ignore-times turn off mod time & file size quick check | |
100 | --size-only ignore mod time for quick check (use size) | |
101 | + --date-only ignore size for quick check (use mod time) | |
102 | --modify-window=NUM compare mod times with reduced accuracy | |
103 | -T --temp-dir=DIR create temporary files in directory DIR | |
104 | --compare-dest=DIR also compare received files relative to DIR | |
105 | @@ -390,6 +391,12 @@ | |
106 | regardless of timestamp. This is useful when starting to use rsync | |
107 | after using another mirroring system which may not preserve timestamps | |
108 | exactly. | |
109 | + | |
110 | +dit(bf(--date-only)) Normally rsync will skip any files that are | |
111 | +already the same size and have the same modification time-stamp. With the | |
112 | +--date-only option, files will be skipped if they have the same | |
113 | +timestamp, regardless of size. This may be useful when the remote | |
114 | +files have passed through a size-changing filter, e.g. for encryption. | |
115 | ||
116 | dit(bf(--modify-window)) When comparing two timestamps rsync treats | |
117 | the timestamps as being equal if they are within the value of |