[PATCH 3/3] ls-tree: remove path filtering logic in show_tree

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ls-tree uses read_tree_recursive() which already does path filtering
using pathspec. No need to filter one more time based on prefix
only. "ls-tree ../somewhere" does not work because of this.
write_name_quotedpfx() can now be retired because nobody else
uses it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 builtin/ls-tree.c            | 14 +++++++-------
 quote.c                      | 21 ---------------------
 quote.h                      |  2 --
 t/t3102-ls-tree-wildcards.sh |  8 ++++++++
 4 files changed, 15 insertions(+), 30 deletions(-)

diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index d226344..3b04a0f 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -65,6 +65,7 @@ static int show_tree(const unsigned char *sha1, struct strbuf *base,
 		const char *pathname, unsigned mode, int stage, void *context)
 {
 	int retval = 0;
+	int baselen;
 	const char *type = blob_type;
 
 	if (S_ISGITLINK(mode)) {
@@ -89,11 +90,6 @@ static int show_tree(const unsigned char *sha1, struct strbuf *base,
 	else if (ls_options & LS_TREE_ONLY)
 		return 0;
 
-	if (chomp_prefix &&
-	    (base->len < chomp_prefix ||
-	     memcmp(ls_tree_prefix, base->buf, chomp_prefix)))
-		return 0;
-
 	if (!(ls_options & LS_NAME_ONLY)) {
 		if (ls_options & LS_SHOW_SIZE) {
 			char size_text[24];
@@ -113,8 +109,12 @@ static int show_tree(const unsigned char *sha1, struct strbuf *base,
 			printf("%06o %s %s\t", mode, type,
 			       find_unique_abbrev(sha1, abbrev));
 	}
-	write_name_quotedpfx(base->buf + chomp_prefix, base->len - chomp_prefix,
-			  pathname, stdout, line_termination);
+	baselen = base->len;
+	strbuf_addstr(base, pathname);
+	write_name_quoted_relative(base->buf,
+				   chomp_prefix ? ls_tree_prefix : NULL,
+				   stdout, line_termination);
+	strbuf_setlen(base, baselen);
 	return retval;
 }
 
diff --git a/quote.c b/quote.c
index 45e3db1..7920e18 100644
--- a/quote.c
+++ b/quote.c
@@ -274,27 +274,6 @@ void write_name_quoted(const char *name, FILE *fp, int terminator)
 	fputc(terminator, fp);
 }
 
-void write_name_quotedpfx(const char *pfx, size_t pfxlen,
-			  const char *name, FILE *fp, int terminator)
-{
-	int needquote = 0;
-
-	if (terminator) {
-		needquote = next_quote_pos(pfx, pfxlen) < pfxlen
-			|| name[next_quote_pos(name, -1)];
-	}
-	if (needquote) {
-		fputc('"', fp);
-		quote_c_style_counted(pfx, pfxlen, NULL, fp, 1);
-		quote_c_style(name, NULL, fp, 1);
-		fputc('"', fp);
-	} else {
-		fwrite(pfx, pfxlen, 1, fp);
-		fputs(name, fp);
-	}
-	fputc(terminator, fp);
-}
-
 void write_name_quoted_relative(const char *name, const char *prefix,
 				FILE *fp, int terminator)
 {
diff --git a/quote.h b/quote.h
index 71dcc3a..99e04d3 100644
--- a/quote.h
+++ b/quote.h
@@ -56,8 +56,6 @@ extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq
 extern void quote_two_c_style(struct strbuf *, const char *, const char *, int);
 
 extern void write_name_quoted(const char *name, FILE *, int terminator);
-extern void write_name_quotedpfx(const char *pfx, size_t pfxlen,
-                                 const char *name, FILE *, int terminator);
 extern void write_name_quoted_relative(const char *name, const char *prefix,
 		FILE *fp, int terminator);
 
diff --git a/t/t3102-ls-tree-wildcards.sh b/t/t3102-ls-tree-wildcards.sh
index c286854..83fca8d 100755
--- a/t/t3102-ls-tree-wildcards.sh
+++ b/t/t3102-ls-tree-wildcards.sh
@@ -19,4 +19,12 @@ EOF
 	test_cmp expected actual
 '
 
+test_expect_success 'ls-tree outside prefix' '
+	cat >expected <<EOF &&
+100644 blob e69de29bb2d1d6434b8b29ae775ad8c2e48c5391	../a[a]/three
+EOF
+	( cd aa && git ls-tree -r HEAD "../a[a]"; ) >actual &&
+	test_cmp expected actual
+'
+
 test_done
-- 
2.1.0.rc0.78.gc0d8480

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