2 * Copyright (C) 2005 Junio C Hamano
8 static unsigned int contains(struct diff_filespec
*one
,
9 const char *needle
, unsigned long len
,
15 if (diff_populate_filespec(one
, 0))
28 assert(data
[sz
] == '\0');
29 while (*data
&& !regexec(regexp
, data
, 1, ®match
, flags
)) {
31 data
+= regmatch
.rm_eo
;
32 if (*data
&& regmatch
.rm_so
== regmatch
.rm_eo
)
37 } else { /* Classic exact string match */
39 const char *found
= memmem(data
, sz
, needle
, len
);
42 sz
-= found
- data
+ len
;
47 diff_free_filespec_data(one
);
51 void diffcore_pickaxe(struct diff_options
*o
)
53 const char *needle
= o
->pickaxe
;
54 int opts
= o
->pickaxe_opts
;
55 struct diff_queue_struct
*q
= &diff_queued_diff
;
56 unsigned long len
= strlen(needle
);
58 regex_t regex
, *regexp
= NULL
;
59 struct diff_queue_struct outq
;
60 DIFF_QUEUE_CLEAR(&outq
);
62 if (opts
& DIFF_PICKAXE_REGEX
) {
64 err
= regcomp(®ex
, needle
, REG_EXTENDED
| REG_NEWLINE
);
66 /* The POSIX.2 people are surely sick */
68 regerror(err
, ®ex
, errbuf
, 1024);
70 die("invalid pickaxe regex: %s", errbuf
);
75 if (opts
& DIFF_PICKAXE_ALL
) {
76 /* Showing the whole changeset if needle exists */
77 for (i
= has_changes
= 0; !has_changes
&& i
< q
->nr
; i
++) {
78 struct diff_filepair
*p
= q
->queue
[i
];
79 if (!DIFF_FILE_VALID(p
->one
)) {
80 if (!DIFF_FILE_VALID(p
->two
))
81 continue; /* ignore unmerged */
83 if (contains(p
->two
, needle
, len
, regexp
))
86 else if (!DIFF_FILE_VALID(p
->two
)) {
87 if (contains(p
->one
, needle
, len
, regexp
))
90 else if (!diff_unmodified_pair(p
) &&
91 contains(p
->one
, needle
, len
, regexp
) !=
92 contains(p
->two
, needle
, len
, regexp
))
96 return; /* not munge the queue */
98 /* otherwise we will clear the whole queue
99 * by copying the empty outq at the end of this
100 * function, but first clear the current entries
103 for (i
= 0; i
< q
->nr
; i
++)
104 diff_free_filepair(q
->queue
[i
]);
107 /* Showing only the filepairs that has the needle */
108 for (i
= 0; i
< q
->nr
; i
++) {
109 struct diff_filepair
*p
= q
->queue
[i
];
111 if (!DIFF_FILE_VALID(p
->one
)) {
112 if (!DIFF_FILE_VALID(p
->two
))
113 ; /* ignore unmerged */
115 else if (contains(p
->two
, needle
, len
, regexp
))
118 else if (!DIFF_FILE_VALID(p
->two
)) {
119 if (contains(p
->one
, needle
, len
, regexp
))
122 else if (!diff_unmodified_pair(p
) &&
123 contains(p
->one
, needle
, len
, regexp
) !=
124 contains(p
->two
, needle
, len
, regexp
))
130 diff_free_filepair(p
);
133 if (opts
& DIFF_PICKAXE_REGEX
) {