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-rw-r--r--Documentation/config.txt2
-rw-r--r--builtin-apply.c27
-rw-r--r--cache.h3
-rwxr-xr-xt/t4124-apply-ws-rule.sh26
-rw-r--r--ws.c6
5 files changed, 54 insertions, 10 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 113d9d1..871384e 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -389,6 +389,8 @@ core.whitespace::
error (enabled by default).
* `indent-with-non-tab` treats a line that is indented with 8 or more
space characters as an error (not enabled by default).
+* `blank-at-eof` treats blank lines added at the end of file as an error
+ (enabled by default).
* `cr-at-eol` treats a carriage-return at the end of line as
part of the line terminator, i.e. with it, `trailing-space`
does not trigger if the character before such a carriage-return
diff --git a/builtin-apply.c b/builtin-apply.c
index 80ddf55..37d3bc0 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -126,6 +126,7 @@ struct fragment {
const char *patch;
int size;
int rejected;
+ int linenr;
struct fragment *next;
};
@@ -1193,6 +1194,7 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc
int len;
fragment = xcalloc(1, sizeof(*fragment));
+ fragment->linenr = linenr;
len = parse_fragment(line, size, patch, fragment);
if (len <= 0)
die("corrupt patch at line %d", linenr);
@@ -2079,17 +2081,24 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
}
if (applied_pos >= 0) {
- if (ws_error_action == correct_ws_error &&
- new_blank_lines_at_end &&
- preimage.nr + applied_pos == img->nr) {
+ if (new_blank_lines_at_end &&
+ preimage.nr + applied_pos == img->nr &&
+ (ws_rule & WS_BLANK_AT_EOF) &&
+ ws_error_action != nowarn_ws_error) {
+ record_ws_error(WS_BLANK_AT_EOF, "+", 1, frag->linenr);
+ if (ws_error_action == correct_ws_error) {
+ while (new_blank_lines_at_end--)
+ remove_last_line(&postimage);
+ }
/*
- * If the patch application adds blank lines
- * at the end, and if the patch applies at the
- * end of the image, remove those added blank
- * lines.
+ * We would want to prevent write_out_results()
+ * from taking place in apply_patch() that follows
+ * the callchain led us here, which is:
+ * apply_patch->check_patch_list->check_patch->
+ * apply_data->apply_fragments->apply_one_fragment
*/
- while (new_blank_lines_at_end--)
- remove_last_line(&postimage);
+ if (ws_error_action == die_on_ws_error)
+ apply = 0;
}
/*
diff --git a/cache.h b/cache.h
index 099a32e..7152fea 100644
--- a/cache.h
+++ b/cache.h
@@ -845,7 +845,8 @@ void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, i
#define WS_SPACE_BEFORE_TAB 02
#define WS_INDENT_WITH_NON_TAB 04
#define WS_CR_AT_EOL 010
-#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
+#define WS_BLANK_AT_EOF 020
+#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|WS_BLANK_AT_EOF)
extern unsigned whitespace_rule_cfg;
extern unsigned whitespace_rule(const char *);
extern unsigned parse_whitespace_rule(const char *);
diff --git a/t/t4124-apply-ws-rule.sh b/t/t4124-apply-ws-rule.sh
index fedc8b9..3a77a9a 100755
--- a/t/t4124-apply-ws-rule.sh
+++ b/t/t4124-apply-ws-rule.sh
@@ -201,4 +201,30 @@ test_expect_success 'blank at end of hunk, not at EOF with --whitespace=fix' '
test_cmp expect one
'
+test_expect_success 'blank at EOF with --whitespace=warn' '
+ { echo a; echo b; echo c; } >one &&
+ git add one &&
+ echo >>one &&
+ cat one >expect &&
+ git diff -- one >patch &&
+
+ git checkout one &&
+ git apply --whitespace=warn patch 2>error &&
+ test_cmp expect one &&
+ grep "new blank line at EOF" error
+'
+
+test_expect_success 'blank at EOF with --whitespace=error' '
+ { echo a; echo b; echo c; } >one &&
+ git add one &&
+ cat one >expect &&
+ echo >>one &&
+ git diff -- one >patch &&
+
+ git checkout one &&
+ test_must_fail git apply --whitespace=error patch 2>error &&
+ test_cmp expect one &&
+ grep "new blank line at EOF" error
+'
+
test_done
diff --git a/ws.c b/ws.c
index 7a7ff13..d56636b 100644
--- a/ws.c
+++ b/ws.c
@@ -15,6 +15,7 @@ static struct whitespace_rule {
{ "space-before-tab", WS_SPACE_BEFORE_TAB },
{ "indent-with-non-tab", WS_INDENT_WITH_NON_TAB },
{ "cr-at-eol", WS_CR_AT_EOL },
+ { "blank-at-eof", WS_BLANK_AT_EOF },
};
unsigned parse_whitespace_rule(const char *string)
@@ -113,6 +114,11 @@ char *whitespace_error_string(unsigned ws)
strbuf_addstr(&err, ", ");
strbuf_addstr(&err, "indent with spaces");
}
+ if (ws & WS_BLANK_AT_EOF) {
+ if (err.len)
+ strbuf_addstr(&err, ", ");
+ strbuf_addstr(&err, "new blank line at EOF");
+ }
return strbuf_detach(&err, NULL);
}