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1 | /* | |
2 | * Copyright (c) 2011, Google Inc. | |
3 | */ | |
4 | #ifndef CONVERT_H | |
5 | #define CONVERT_H | |
6 | ||
7 | #include "string-list.h" | |
8 | ||
9 | struct index_state; | |
10 | ||
11 | #define CONV_EOL_RNDTRP_DIE (1<<0) /* Die if CRLF to LF to CRLF is different */ | |
12 | #define CONV_EOL_RNDTRP_WARN (1<<1) /* Warn if CRLF to LF to CRLF is different */ | |
13 | #define CONV_EOL_RENORMALIZE (1<<2) /* Convert CRLF to LF */ | |
14 | #define CONV_EOL_KEEP_CRLF (1<<3) /* Keep CRLF line endings as is */ | |
15 | #define CONV_WRITE_OBJECT (1<<4) /* Content is written to the index */ | |
16 | ||
17 | extern int global_conv_flags_eol; | |
18 | ||
19 | enum auto_crlf { | |
20 | AUTO_CRLF_FALSE = 0, | |
21 | AUTO_CRLF_TRUE = 1, | |
22 | AUTO_CRLF_INPUT = -1 | |
23 | }; | |
24 | ||
25 | extern enum auto_crlf auto_crlf; | |
26 | ||
27 | enum eol { | |
28 | EOL_UNSET, | |
29 | EOL_CRLF, | |
30 | EOL_LF, | |
31 | #ifdef NATIVE_CRLF | |
32 | EOL_NATIVE = EOL_CRLF | |
33 | #else | |
34 | EOL_NATIVE = EOL_LF | |
35 | #endif | |
36 | }; | |
37 | ||
38 | enum ce_delay_state { | |
39 | CE_NO_DELAY = 0, | |
40 | CE_CAN_DELAY = 1, | |
41 | CE_RETRY = 2 | |
42 | }; | |
43 | ||
44 | struct delayed_checkout { | |
45 | /* | |
46 | * State of the currently processed cache entry. If the state is | |
47 | * CE_CAN_DELAY, then the filter can delay the current cache entry. | |
48 | * If the state is CE_RETRY, then this signals the filter that the | |
49 | * cache entry was requested before. | |
50 | */ | |
51 | enum ce_delay_state state; | |
52 | /* List of filter drivers that signaled delayed blobs. */ | |
53 | struct string_list filters; | |
54 | /* List of delayed blobs identified by their path. */ | |
55 | struct string_list paths; | |
56 | }; | |
57 | ||
58 | extern enum eol core_eol; | |
59 | extern char *check_roundtrip_encoding; | |
60 | extern const char *get_cached_convert_stats_ascii(const struct index_state *istate, | |
61 | const char *path); | |
62 | extern const char *get_wt_convert_stats_ascii(const char *path); | |
63 | extern const char *get_convert_attr_ascii(const char *path); | |
64 | ||
65 | /* returns 1 if *dst was used */ | |
66 | extern int convert_to_git(const struct index_state *istate, | |
67 | const char *path, const char *src, size_t len, | |
68 | struct strbuf *dst, int conv_flags); | |
69 | extern int convert_to_working_tree(const char *path, const char *src, | |
70 | size_t len, struct strbuf *dst); | |
71 | extern int async_convert_to_working_tree(const char *path, const char *src, | |
72 | size_t len, struct strbuf *dst, | |
73 | void *dco); | |
74 | extern int async_query_available_blobs(const char *cmd, struct string_list *available_paths); | |
75 | extern int renormalize_buffer(const struct index_state *istate, | |
76 | const char *path, const char *src, size_t len, | |
77 | struct strbuf *dst); | |
78 | static inline int would_convert_to_git(const struct index_state *istate, | |
79 | const char *path) | |
80 | { | |
81 | return convert_to_git(istate, path, NULL, 0, NULL, 0); | |
82 | } | |
83 | /* Precondition: would_convert_to_git_filter_fd(path) == true */ | |
84 | extern void convert_to_git_filter_fd(const struct index_state *istate, | |
85 | const char *path, int fd, | |
86 | struct strbuf *dst, | |
87 | int conv_flags); | |
88 | extern int would_convert_to_git_filter_fd(const char *path); | |
89 | ||
90 | /***************************************************************** | |
91 | * | |
92 | * Streaming conversion support | |
93 | * | |
94 | *****************************************************************/ | |
95 | ||
96 | struct stream_filter; /* opaque */ | |
97 | ||
98 | extern struct stream_filter *get_stream_filter(const char *path, const struct object_id *); | |
99 | extern void free_stream_filter(struct stream_filter *); | |
100 | extern int is_null_stream_filter(struct stream_filter *); | |
101 | ||
102 | /* | |
103 | * Use as much input up to *isize_p and fill output up to *osize_p; | |
104 | * update isize_p and osize_p to indicate how much buffer space was | |
105 | * consumed and filled. Return 0 on success, non-zero on error. | |
106 | * | |
107 | * Some filters may need to buffer the input and look-ahead inside it | |
108 | * to decide what to output, and they may consume more than zero bytes | |
109 | * of input and still not produce any output. After feeding all the | |
110 | * input, pass NULL as input and keep calling this function, to let | |
111 | * such filters know there is no more input coming and it is time for | |
112 | * them to produce the remaining output based on the buffered input. | |
113 | */ | |
114 | extern int stream_filter(struct stream_filter *, | |
115 | const char *input, size_t *isize_p, | |
116 | char *output, size_t *osize_p); | |
117 | ||
118 | #endif /* CONVERT_H */ |