git/convert.h
Torsten Bögershausen 8462ff43e4 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>
2018-01-16 12:35:56 -08:00

116 lines
3.7 KiB
C

/*
* Copyright (c) 2011, Google Inc.
*/
#ifndef CONVERT_H
#define CONVERT_H
#include "string-list.h"
struct index_state;
#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 int global_conv_flags_eol;
enum auto_crlf {
AUTO_CRLF_FALSE = 0,
AUTO_CRLF_TRUE = 1,
AUTO_CRLF_INPUT = -1
};
extern enum auto_crlf auto_crlf;
enum eol {
EOL_UNSET,
EOL_CRLF,
EOL_LF,
#ifdef NATIVE_CRLF
EOL_NATIVE = EOL_CRLF
#else
EOL_NATIVE = EOL_LF
#endif
};
enum ce_delay_state {
CE_NO_DELAY = 0,
CE_CAN_DELAY = 1,
CE_RETRY = 2
};
struct delayed_checkout {
/*
* State of the currently processed cache entry. If the state is
* CE_CAN_DELAY, then the filter can delay the current cache entry.
* If the state is CE_RETRY, then this signals the filter that the
* cache entry was requested before.
*/
enum ce_delay_state state;
/* List of filter drivers that signaled delayed blobs. */
struct string_list filters;
/* List of delayed blobs identified by their path. */
struct string_list paths;
};
extern enum eol core_eol;
extern const char *get_cached_convert_stats_ascii(const struct index_state *istate,
const char *path);
extern const char *get_wt_convert_stats_ascii(const char *path);
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, 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,
size_t len, struct strbuf *dst,
void *dco);
extern int async_query_available_blobs(const char *cmd, struct string_list *available_paths);
extern int renormalize_buffer(const struct index_state *istate,
const char *path, const char *src, size_t len,
struct strbuf *dst);
static inline int would_convert_to_git(const struct index_state *istate,
const char *path)
{
return convert_to_git(istate, path, NULL, 0, NULL, 0);
}
/* Precondition: would_convert_to_git_filter_fd(path) == true */
extern void convert_to_git_filter_fd(const struct index_state *istate,
const char *path, int fd,
struct strbuf *dst,
int conv_flags);
extern int would_convert_to_git_filter_fd(const char *path);
/*****************************************************************
*
* Streaming conversion support
*
*****************************************************************/
struct stream_filter; /* opaque */
extern struct stream_filter *get_stream_filter(const char *path, const unsigned char *);
extern void free_stream_filter(struct stream_filter *);
extern int is_null_stream_filter(struct stream_filter *);
/*
* Use as much input up to *isize_p and fill output up to *osize_p;
* update isize_p and osize_p to indicate how much buffer space was
* consumed and filled. Return 0 on success, non-zero on error.
*
* Some filters may need to buffer the input and look-ahead inside it
* to decide what to output, and they may consume more than zero bytes
* of input and still not produce any output. After feeding all the
* input, pass NULL as input and keep calling this function, to let
* such filters know there is no more input coming and it is time for
* them to produce the remaining output based on the buffered input.
*/
extern int stream_filter(struct stream_filter *,
const char *input, size_t *isize_p,
char *output, size_t *osize_p);
#endif /* CONVERT_H */