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strbuf: introduce strbuf_getline_{lf,nul}()

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The strbuf_getline() interface allows a byte other than LF or NUL as
the line terminator, but this is only because I wrote these
codepaths anticipating that there might be a value other than NUL
and LF that could be useful when I introduced line_termination long
time ago.  No useful caller that uses other value has emerged.

By now, it is clear that the interface is overly broad without a
good reason.  Many codepaths have hardcoded preference to read
either LF terminated or NUL terminated records from their input, and
then call strbuf_getline() with LF or NUL as the third parameter.

This step introduces two thin wrappers around strbuf_getline(),
namely, strbuf_getline_lf() and strbuf_getline_nul(), and
mechanically rewrites these call sites to call either one of
them.  The changes contained in this patch are:

 * introduction of these two functions in strbuf.[ch]

 * mechanical conversion of all callers to strbuf_getline() with
   either '\n' or '\0' as the third parameter to instead call the
   respective thin wrapper.

After this step, output from "git grep 'strbuf_getline('" would
become a lot smaller.  An interim goal of this series is to make
this an empty set, so that we can have strbuf_getline_crlf() take
over the shorter name strbuf_getline().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2016-01-13 15:31:17 -08:00
parent c8aa9fdf5d
commit 8f309aeb82
36 changed files with 81 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
builtin/clean.c
View File

@ -594,7 +594,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
clean_get_color(CLEAN_COLOR_RESET));
}
if (strbuf_getline(&choice, stdin, '\n') != EOF) {
if (strbuf_getline_lf(&choice, stdin) != EOF) {
strbuf_trim(&choice);
} else {
eof = 1;
@ -676,7 +676,7 @@ 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(&confirm, stdin, '\n') != EOF)
if (strbuf_getline_lf(&confirm, stdin) != EOF)
strbuf_trim(&confirm);
else
putchar('\n');
@ -774,7 +774,7 @@ 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(&confirm, stdin, '\n') != EOF) {
if (strbuf_getline_lf(&confirm, stdin) != EOF) {
strbuf_trim(&confirm);
} else {
putchar('\n');