convert_to_git(): safe_crlf/checksafe becomes int conv_flags

When calling convert_to_git(), the checksafe parameter defined what
should happen if the EOL conversion (CRLF --> LF --> CRLF) does not
roundtrip cleanly. In addition, it also defined if line endings should
be renormalized (CRLF --> LF) or kept as they are.

checksafe was an safe_crlf enum with these values:
SAFE_CRLF_FALSE:       do nothing in case of EOL roundtrip errors
SAFE_CRLF_FAIL:        die in case of EOL roundtrip errors
SAFE_CRLF_WARN:        print a warning in case of EOL roundtrip errors
SAFE_CRLF_RENORMALIZE: change CRLF to LF
SAFE_CRLF_KEEP_CRLF:   keep all line endings as they are

In some cases the integer value 0 was passed as checksafe parameter
instead of the correct enum value SAFE_CRLF_FALSE. That was no problem
because SAFE_CRLF_FALSE is defined as 0.

FALSE/FAIL/WARN are different from RENORMALIZE and KEEP_CRLF. Therefore,
an enum is not ideal. Let's use a integer bit pattern instead and rename
the parameter to conv_flags to make it more generically usable. This
allows us to extend the bit pattern in a subsequent commit.

Reported-By: Randall S. Becker <rsbecker@nexbridge.com>
Helped-By: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 7 insertions, 10 deletions

diff --git a/convert.h b/convert.h
index 4f2da225a8..65ab3e5167 100644
--- a/convert.h
+++ b/convert.h
@@ -8,15 +8,12 @@
 
 struct index_state;
 
-enum safe_crlf {
-	SAFE_CRLF_FALSE = 0,
-	SAFE_CRLF_FAIL = 1,
-	SAFE_CRLF_WARN = 2,
-	SAFE_CRLF_RENORMALIZE = 3,
-	SAFE_CRLF_KEEP_CRLF = 4
-};
+#define CONV_EOL_RNDTRP_DIE   (1<<0) /* Die if CRLF to LF to CRLF is different */
+#define CONV_EOL_RNDTRP_WARN  (1<<1) /* Warn if CRLF to LF to CRLF is different */
+#define CONV_EOL_RENORMALIZE  (1<<2) /* Convert CRLF to LF */
+#define CONV_EOL_KEEP_CRLF    (1<<3) /* Keep CRLF line endings as is */
 
-extern enum safe_crlf safe_crlf;
+extern int global_conv_flags_eol;
 
 enum auto_crlf {
 	AUTO_CRLF_FALSE = 0,
@@ -66,7 +63,7 @@ extern const char *get_convert_attr_ascii(const char *path);
 /* returns 1 if *dst was used */
 extern int convert_to_git(const struct index_state *istate,
 			  const char *path, const char *src, size_t len,
-			  struct strbuf *dst, enum safe_crlf checksafe);
+			  struct strbuf *dst, int conv_flags);
 extern int convert_to_working_tree(const char *path, const char *src,
 				   size_t len, struct strbuf *dst);
 extern int async_convert_to_working_tree(const char *path, const char *src,
@@ -85,7 +82,7 @@ static inline int would_convert_to_git(const struct index_state *istate,
 extern void convert_to_git_filter_fd(const struct index_state *istate,
 				     const char *path, int fd,
 				     struct strbuf *dst,
-				     enum safe_crlf checksafe);
+				     int conv_flags);
 extern int would_convert_to_git_filter_fd(const char *path);
 
 /*****************************************************************