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| author | Rob Landley <rob@landley.net> | 2021-04-07 07:00:13 -0500 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2021-04-07 07:00:13 -0500 |
| commit | 2a6f03eb088b21a68ee4f5fa45b7cd4f7c7bc558 (patch) | |
| tree | 6e8f0e5249844efc8a9b7ac702ddaea9402be559 /toys/posix | |
| parent | cecc41a3c52519ac1d65989b266fec32a2bd6ff7 (diff) | |
| download | toybox-2a6f03eb088b21a68ee4f5fa45b7cd4f7c7bc558.tar.gz | |
Add cp -u
Diffstat (limited to 'toys/posix')
| -rw-r--r-- | toys/posix/cp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/toys/posix/cp.c b/toys/posix/cp.c index a27c200a..8eaecc9c 100644 --- a/toys/posix/cp.c +++ b/toys/posix/cp.c @@ -15,7 +15,7 @@ // options shared between mv/cp must be in same order (right to left) // for FLAG macros to work out right in shared infrastructure. -USE_CP(NEWTOY(cp, "<1(preserve):;D(parents)RHLPprdaslvnF(remove-destination)fit:T[-HLPd][-ni]", TOYFLAG_BIN)) +USE_CP(NEWTOY(cp, "<1(preserve):;D(parents)RHLPprudaslvnF(remove-destination)fit:T[-HLPd][-niu]", TOYFLAG_BIN)) USE_MV(NEWTOY(mv, "<1vnF(remove-destination)fit:T[-ni]", TOYFLAG_BIN)) USE_INSTALL(NEWTOY(install, "<1cdDpsvt:m:o:g:", TOYFLAG_USR|TOYFLAG_BIN)) @@ -38,6 +38,7 @@ config CP -L Follow all symlinks -l Hard link instead of copy -n No clobber (don't overwrite DEST) + -u Update (keep newest mtime) -P Do not follow symlinks -p Preserve timestamps, ownership, and mode -R Recurse into subdirectories (DEST must be a directory) @@ -152,7 +153,7 @@ static int cp_node(struct dirtree *try) return 0; } - // Handle -invF + // Handle -inuvF if (!faccessat(cfd, catch, F_OK, 0) && !S_ISDIR(cst.st_mode)) { char *s; @@ -165,6 +166,8 @@ static int cp_node(struct dirtree *try) error_msg("unlink '%s'", catch); return 0; } else if (flags & FLAG_n) return 0; + else if ((flags & FLAG_u) && nanodiff(&try->st.st_mtim, &cst.st_mtim)>0) + return 0; else if (flags & FLAG_i) { fprintf(stderr, "%s: overwrite '%s'", toys.which->name, s = dirtree_path(try, 0)); |