* Size reduction.
*/
//config:config CP
-//config: bool "cp"
+//config: bool "cp (9.7 kb)"
//config: default y
//config: help
-//config: cp is used to copy files and directories.
+//config: cp is used to copy files and directories.
//config:
//config:config FEATURE_CP_LONG_OPTIONS
//config: bool "Enable long options"
//config: default y
//config: depends on CP && LONG_OPTS
//config: help
-//config: Enable long options.
-//config: Also add support for --parents option.
+//config: Enable long options.
+//config: Also add support for --parents option.
+//config:
+//config:config FEATURE_CP_REFLINK
+//config: bool "Enable --reflink[=auto]"
+//config: default y
+//config: depends on FEATURE_CP_LONG_OPTIONS
//applet:IF_CP(APPLET_NOEXEC(cp, cp, BB_DIR_BIN, BB_SUID_DROP, cp))
+/* NOEXEC despite cases when it can be a "runner" (cp -r LARGE_DIR NEW_DIR) */
//kbuild:lib-$(CONFIG_CP) += cp.o
//usage: "\n -f Overwrite"
//usage: "\n -i Prompt before overwrite"
//usage: "\n -l,-s Create (sym)links"
+//usage: "\n -T Treat DEST as a normal file"
//usage: "\n -u Copy only newer files"
#include "libbb.h"
#if ENABLE_FEATURE_CP_LONG_OPTIONS
/*OPT_rmdest = FILEUTILS_RMDEST = 1 << FILEUTILS_CP_OPTNUM */
OPT_parents = 1 << (FILEUTILS_CP_OPTNUM+1),
+ OPT_reflink = 1 << (FILEUTILS_CP_OPTNUM+2),
#endif
};
- // Need at least two arguments
- // Soft- and hardlinking doesn't mix
- // -P and -d are the same (-P is POSIX, -d is GNU)
- // -r and -R are the same
- // -R (and therefore -r) turns on -d (coreutils does this)
- // -a = -pdR
- opt_complementary = "-2:l--s:s--l:Pd:rRd:Rd:apdR";
#if ENABLE_FEATURE_CP_LONG_OPTIONS
- applet_long_options =
+# if ENABLE_FEATURE_CP_REFLINK
+ char *reflink = NULL;
+# endif
+ flags = getopt32long(argv, "^"
+ FILEUTILS_CP_OPTSTR
+ "\0"
+ // Need at least two arguments
+ // Soft- and hardlinking doesn't mix
+ // -P and -d are the same (-P is POSIX, -d is GNU)
+ // -r and -R are the same
+ // -R (and therefore -r) turns on -d (coreutils does this)
+ // -a = -pdR
+ "-2:l--s:s--l:Pd:rRd:Rd:apdR",
"archive\0" No_argument "a"
"force\0" No_argument "f"
"interactive\0" No_argument "i"
"no-dereference\0" No_argument "P"
"recursive\0" No_argument "R"
"symbolic-link\0" No_argument "s"
+ "no-target-directory\0" No_argument "T"
"verbose\0" No_argument "v"
"update\0" No_argument "u"
"remove-destination\0" No_argument "\xff"
"parents\0" No_argument "\xfe"
- ;
+# if ENABLE_FEATURE_CP_REFLINK
+ "reflink\0" Optional_argument "\xfd"
+ , &reflink
+# endif
+ );
+# if ENABLE_FEATURE_CP_REFLINK
+ BUILD_BUG_ON((int)OPT_reflink != (int)FILEUTILS_REFLINK);
+ if (flags & FILEUTILS_REFLINK) {
+ if (!reflink)
+ flags |= FILEUTILS_REFLINK_ALWAYS;
+ else if (strcmp(reflink, "always") == 0)
+ flags |= FILEUTILS_REFLINK_ALWAYS;
+ else if (strcmp(reflink, "auto") != 0)
+ bb_show_usage();
+ }
+# endif
+#else
+ flags = getopt32(argv, "^"
+ FILEUTILS_CP_OPTSTR
+ "\0"
+ "-2:l--s:s--l:Pd:rRd:Rd:apdR"
+ );
#endif
- flags = getopt32(argv, FILEUTILS_CP_OPTSTR);
/* Options of cp from GNU coreutils 6.10:
* -a, --archive
* -f, --force
* remove each existing destination file before attempting to open
* --parents
* use full source file name under DIRECTORY
+ * -T, --no-target-directory
+ * treat DEST as a normal file
* NOT SUPPORTED IN BBOX:
* --backup[=CONTROL]
* make a backup of each existing destination file
* override the usual backup suffix
* -t, --target-directory=DIRECTORY
* copy all SOURCE arguments into DIRECTORY
- * -T, --no-target-directory
- * treat DEST as a normal file
* -x, --one-file-system
* stay on this file system
* -Z, --context=CONTEXT
if (d_flags < 0)
return EXIT_FAILURE;
+ if (flags & FILEUTILS_NO_TARGET_DIR) { /* -T */
+ if (!(s_flags & 2) && (d_flags & 2))
+ /* cp -T NOTDIR DIR */
+ bb_error_msg_and_die("'%s' is a directory", last);
+ }
+
#if ENABLE_FEATURE_CP_LONG_OPTIONS
//bb_error_msg("flags:%x FILEUTILS_RMDEST:%x OPT_parents:%x",
// flags, FILEUTILS_RMDEST, OPT_parents);
if (!((s_flags | d_flags) & 2)
/* ...or: recursing, the 1st is a directory, and the 2nd doesn't exist... */
|| ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags)
+ || (flags & FILEUTILS_NO_TARGET_DIR)
) {
/* Do a simple copy */
dest = last;
goto DO_COPY; /* NB: argc==2 -> *++argv==last */
}
+ } else if (flags & FILEUTILS_NO_TARGET_DIR) {
+ bb_error_msg_and_die("too many arguments");
}
while (1) {