fbt/sbase
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add r-flag to touch(1), refactor manpage and code

Browse Source 
and mark it as finished in README.
This commit is contained in:
FRIGN 2015-02-09 00:41:57 +01:00
parent 49ed53b46c
commit d6b3890af6
3 changed files with 46 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README
View File

@ -68,7 +68,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
=* tar non-posix none =* tar non-posix none
=* tee yes none =* tee yes none
test yes none test yes none
= touch no -r =* touch yes none
#* tr yes none #* tr yes none
=* true yes none =* true yes none
=* tty yes none =* tty yes none

50
touch.1
View File

@ -1,4 +1,4 @@
.Dd January 20, 2014 .Dd February 9, 2014
.Dt TOUCH 1 .Dt TOUCH 1
.Os sbase .Os sbase
.Sh NAME .Sh NAME
@ -7,25 +7,47 @@
.Sh SYNOPSIS .Sh SYNOPSIS
.Nm .Nm
.Op Fl acm .Op Fl acm
.Op Fl t Ar stamp .Op Fl r Ar ref_file | t Ar timestamp
.Ar file ... .Ar file ...
.Sh DESCRIPTION .Sh DESCRIPTION
.Nm .Nm
sets the access and modification times of files to the current time of day. If sets the access or modification time of each
the file doesn't exist, it is created with the default permissions. .Ar file
to the current time of day. If
.Ar file
doesn't exist, it is created with default permissions.
.Sh OPTIONS .Sh OPTIONS
.Bl -tag -width Ds .Bl -tag -width Ds
.It Fl a .It Fl a | Fl m
Set the access time of the file. Set the access | modification time of
.Ar file.
.It Fl c .It Fl c
Do not create the file it it does not exist. The exit status is not affected. Don't create
.It Fl m .Ar file
Change the modification time of the file. if it doesn't exist, not affecting exit status.
.It Fl t Ar stamp .It Fl r Ar ref_file
Set the timestamp to be used with Set the timestamp
.Op Fl am . to be used with
The format of the timestamp is simply the number of seconds since Jan 1, 1970. .Op Fl am
This specification of time does not conform to POSIX. to the modification time of
.Ar ref_file .
.It Fl t Ar timestamp
Set the
.Ar timestamp
to be used with
.Op Fl am
given as the number of seconds since the
Unix epoch 1970-01-01T00:00:00Z.
.El .El
.Sh SEE ALSO .Sh SEE ALSO
.Xr date 1 .Xr date 1
.Sh STANDARDS
The
.Nm
utility is compliant with the
.St -p1003.1-2008
specification except from the
.Ar timestamp
format of the
.Fl t
flag.

10
touch.c
View File

@ -46,12 +46,14 @@ touch(const char *file)
static void static void
usage(void) usage(void)
{ {
eprintf("usage: %s [-acm] [-t stamp] file ...\n", argv0); eprintf("usage: %s [-acm] [-r ref_file | -t timestamp] file ...\n", argv0);
} }
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
struct stat st;
char *ref;
t = time(NULL); t = time(NULL);
ARGBEGIN { ARGBEGIN {
@ -64,6 +66,12 @@ main(int argc, char *argv[])
case 'm': case 'm':
mflag = 1; mflag = 1;
break; break;
case 'r':
ref = EARGF(usage());
if (stat(ref, &st) < 0)
eprintf("stat '%s':", ref);
t = st.st_mtime;
break;
case 't': case 't':
t = estrtonum(EARGF(usage()), 0, MIN(LLONG_MAX, (time_t)-1)); t = estrtonum(EARGF(usage()), 0, MIN(LLONG_MAX, (time_t)-1));
break; break;