64 lines
2.5 KiB
Diff
64 lines
2.5 KiB
Diff
From 56c14ec7f75a68c191f2fc210915108f428e849c Mon Sep 17 00:00:00 2001
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From: Natanael Copa <ncopa@alpinelinux.org>
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Date: Fri, 25 Jul 2014 15:28:33 +0200
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Subject: [PATCH 12/12] diff: add support for --no-dereference
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Add flag for not following symlinks when recursing
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function old new delta
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.rodata 7934 7967 +33
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diff_longopts 253 270 +17
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packed_usage 1704 1720 +16
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diff_main 1665 1662 -3
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------------------------------------------------------------------------------
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(add/remove: 0/0 grow/shrink: 3/1 up/down: 66/-3) Total: 63 bytes
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Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
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---
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editors/diff.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/editors/diff.c b/editors/diff.c
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index 75229ad8c..6266bde0d 100644
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--- a/editors/diff.c
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+++ b/editors/diff.c
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@@ -117,6 +117,9 @@
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//usage: "\n -N Treat absent files as empty"
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//usage: "\n -q Output only whether files differ"
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//usage: "\n -r Recurse"
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+//usage: IF_LONG_OPTS(
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+//usage: "\n --no-dereference Don't follow symlinks"
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+//usage: )
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//usage: "\n -S Start with FILE when comparing directories"
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//usage: "\n -T Make tabs line up by prefixing a tab when necessary"
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//usage: "\n -s Report when two files are the same"
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@@ -158,6 +161,7 @@ enum { /* Commandline flags */
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FLAG_p, /* not implemented */
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FLAG_B,
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FLAG_E, /* not implemented */
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+ FLAG_no_deref,
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};
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#define FLAG(x) (1 << FLAG_##x)
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@@ -872,7 +876,8 @@ static void diffdir(char *p[2], const char *s_start)
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* Using list.len to specify its length,
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* add_to_dirlist will remove it. */
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list[i].len = strlen(p[i]);
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- recursive_action(p[i], ACTION_RECURSE | ACTION_FOLLOWLINKS,
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+ recursive_action(p[i], ACTION_RECURSE |
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+ ((option_mask32 & FLAG(no_deref)) ? 0 : ACTION_FOLLOWLINKS),
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add_to_dirlist, skip_dir, &list[i], 0);
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/* Sort dl alphabetically.
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* GNU diff does this ignoring any number of trailing dots.
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@@ -969,6 +974,7 @@ static const char diff_longopts[] ALIGN1 =
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"report-identical-files\0" No_argument "s"
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"starting-file\0" Required_argument "S"
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"minimal\0" No_argument "d"
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+ "no-dereference\0" No_argument "\xff"
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;
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#endif
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--
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2.11.0
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