From 79fb6ac7a5acc4178b66314c573aeada1d387ed9 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Fri, 13 Jul 2018 20:30:02 +0200 Subject: cp: optional --reflink support function old new delta cp_main 428 512 +84 copy_file 1676 1742 +66 Signed-off-by: Denys Vlasenko --- coreutils/cp.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'coreutils') diff --git a/coreutils/cp.c b/coreutils/cp.c index 455bffbba..b623aaf33 100644 --- a/coreutils/cp.c +++ b/coreutils/cp.c @@ -24,6 +24,11 @@ //config: help //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) */ @@ -72,10 +77,14 @@ int cp_main(int argc, char **argv) #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 }; #if ENABLE_FEATURE_CP_LONG_OPTIONS +# if ENABLE_FEATURE_CP_REFLINK + char *reflink = NULL; +# endif flags = getopt32long(argv, "^" FILEUTILS_CP_OPTSTR "\0" @@ -99,7 +108,22 @@ int cp_main(int argc, char **argv) "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(OPT_reflink != 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 -- cgit v1.2.3