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| author | Tomi Leppanen | 2019-11-25 17:59:52 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2019-11-27 17:11:09 +0100 |
| commit | 1b76ffaae400f266fe5aea0d5900a7e2ab9d7aa8 (patch) | |
| tree | 3d1cd284687332353a67e839ebbcb2741bb14f99 | |
| parent | 008413754ba588e6168c3d15280181fb2c331770 (diff) | |
| download | busybox-1b76ffaae400f266fe5aea0d5900a7e2ab9d7aa8.zip busybox-1b76ffaae400f266fe5aea0d5900a7e2ab9d7aa8.tar.gz | |
grep: add -R
This adds -R option to grep similar to GNU grep. It is the same as -r
but also dereferences symbolic links to directories.
function old new delta
grep_main 834 850 +16
packed_usage 33362 33368 +6
grep_file 1440 1441 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 23/0) Total: 23 bytes
Signed-off-by: Tomi Leppanen <tomi.leppanen@jolla.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | findutils/grep.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/findutils/grep.c b/findutils/grep.c index 2cbe7ea..5b8644c 100644 --- a/findutils/grep.c +++ b/findutils/grep.c @@ -60,7 +60,7 @@ /* options */ //usage:#define grep_trivial_usage -//usage: "[-HhnlLoqvsriwFE" +//usage: "[-HhnlLoqvsrRiwFE" //usage: IF_EXTRA_COMPAT("z") //usage: "] [-m N] " //usage: IF_FEATURE_GREP_CONTEXT("[-A/B/C N] ") @@ -78,6 +78,7 @@ //usage: "\n -v Select non-matching lines" //usage: "\n -s Suppress open and read errors" //usage: "\n -r Recurse" +//usage: "\n -R Recurse and dereference symlinks" //usage: "\n -i Ignore case" //usage: "\n -w Match whole words only" //usage: "\n -x Match whole lines only" @@ -108,7 +109,7 @@ /* -e,-f are lists; -m,-A,-B,-C have numeric param */ #define OPTSTR_GREP \ - "lnqvscFiHhe:*f:*Lorm:+wx" \ + "lnqvscFiHhe:*f:*LorRm:+wx" \ IF_FEATURE_GREP_CONTEXT("A:+B:+C:+") \ "E" \ IF_EXTRA_COMPAT("z") \ @@ -131,6 +132,7 @@ enum { OPTBIT_L, /* list unmatched file names only */ OPTBIT_o, /* show only matching parts of lines */ OPTBIT_r, /* recurse dirs */ + OPTBIT_R, /* recurse dirs and symlinks to dirs */ OPTBIT_m, /* -m MAX_MATCHES */ OPTBIT_w, /* -w whole word match */ OPTBIT_x, /* -x whole line match */ @@ -154,6 +156,7 @@ enum { OPT_L = 1 << OPTBIT_L, OPT_o = 1 << OPTBIT_o, OPT_r = 1 << OPTBIT_r, + OPT_R = 1 << OPTBIT_R, OPT_m = 1 << OPTBIT_m, OPT_w = 1 << OPTBIT_w, OPT_x = 1 << OPTBIT_x, @@ -687,6 +690,7 @@ static int grep_dir(const char *dir) int matched = 0; recursive_action(dir, /* recurse=yes */ ACTION_RECURSE | + /* followLinks=always */ ((option_mask32 & OPT_R) ? ACTION_FOLLOWLINKS : 0) | /* followLinks=command line only */ ACTION_FOLLOWLINKS_L0 | /* depthFirst=yes */ ACTION_DEPTHFIRST, /* fileAction= */ file_action_grep, @@ -827,7 +831,7 @@ int grep_main(int argc UNUSED_PARAM, char **argv) if (!cur_file || LONE_DASH(cur_file)) { cur_file = "(standard input)"; } else { - if (option_mask32 & OPT_r) { + if (option_mask32 & (OPT_r|OPT_R)) { struct stat st; if (stat(cur_file, &st) == 0 && S_ISDIR(st.st_mode)) { if (!(option_mask32 & OPT_h)) |