[PATCH v2 3/6] clean: read user input with strbuf_getline()

[Moritz Neeb <lists@moritzneeb.de>]

The inputs that are read are all answers that are given by the user
when interacting with git on the commandline. As these answers are
not supposed to contain a meaningful CR it is safe to
replace strbuf_getline_lf() can be replaced by strbuf_getline().

Before the user input was trimmed to remove the CR. This would be now
redundant. Another effect of the trimming was that some (accidentally)
typed spaces were filtered. But here we want to be consistent with similar UIs
like interactive adding, which only accepts space-less input.

For the case of filtering by patterns the input is still trimmed in an
untouched codepath after it is split up into multiple patterns.
This is considered as desirable, because of two reasons:
First this fitering is not part of similar UIs and it is way more likely
to accidentally type a space in this way of interacting.

Signed-off-by: Moritz Neeb <lists@moritzneeb.de>
---
When playing around with the interactive git clean I noticed that it is
not possible to have a pattern actually containing a space (i.e. escaping it).
Not sure how relevant this is, because I have no feeling how good the support
and demand for smoothly handling space-containing files in git is.

 builtin/clean.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/builtin/clean.c b/builtin/clean.c
index 7b08237..01cc2ff 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -570,9 +570,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
 			       clean_get_color(CLEAN_COLOR_RESET));
 		}
 -		if (strbuf_getline_lf(&choice, stdin) != EOF) {
-			strbuf_trim(&choice);
-		} else {
+		if (strbuf_getline(&choice, stdin) == EOF) {
 			eof = 1;
 			break;
 		}
@@ -652,9 +650,7 @@ static int filter_by_patterns_cmd(void)
 		clean_print_color(CLEAN_COLOR_PROMPT);
 		printf(_("Input ignore patterns>> "));
 		clean_print_color(CLEAN_COLOR_RESET);
-		if (strbuf_getline_lf(&confirm, stdin) != EOF)
-			strbuf_trim(&confirm);
-		else
+		if (strbuf_getline(&confirm, stdin) == EOF)
 			putchar('\n');
  		/* quit filter_by_pattern mode if press ENTER or Ctrl-D */
@@ -750,9 +746,7 @@ static int ask_each_cmd(void)
 			qname = quote_path_relative(item->string, NULL, &buf);
 			/* TRANSLATORS: Make sure to keep [y/N] as is */
 			printf(_("Remove %s [y/N]? "), qname);
-			if (strbuf_getline_lf(&confirm, stdin) != EOF) {
-				strbuf_trim(&confirm);
-			} else {
+			if (strbuf_getline(&confirm, stdin) == EOF) {
 				putchar('\n');
 				eof = 1;
 			}
-- 
2.7.1.345.gc14003e