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100644 98 lines (80 sloc) 2.352 kb
1812564 @hjemli Move sha1_file_to_archive into libgit
hjemli authored
1 #include "cache.h"
2 #include "commit.h"
3 #include "attr.h"
4
5 static void format_subst(const struct commit *commit,
6 const char *src, size_t len,
7 struct strbuf *buf)
8 {
9 char *to_free = NULL;
10 struct strbuf fmt;
11
12 if (src == buf->buf)
13 to_free = strbuf_detach(buf, NULL);
14 strbuf_init(&fmt, 0);
15 for (;;) {
16 const char *b, *c;
17
18 b = memmem(src, len, "$Format:", 8);
75b7dfb archive.c: format_subst - fixed bogus argument to memchr
Ariel Badichi authored
19 if (!b)
1812564 @hjemli Move sha1_file_to_archive into libgit
hjemli authored
20 break;
75b7dfb archive.c: format_subst - fixed bogus argument to memchr
Ariel Badichi authored
21 c = memchr(b + 8, '$', (src + len) - b - 8);
1812564 @hjemli Move sha1_file_to_archive into libgit
hjemli authored
22 if (!c)
23 break;
24
25 strbuf_reset(&fmt);
26 strbuf_add(&fmt, b + 8, c - b - 8);
27
28 strbuf_add(buf, src, b - src);
29 format_commit_message(commit, fmt.buf, buf);
30 len -= c + 1 - src;
31 src = c + 1;
32 }
33 strbuf_add(buf, src, len);
34 strbuf_release(&fmt);
35 free(to_free);
36 }
37
38 static int convert_to_archive(const char *path,
39 const void *src, size_t len,
40 struct strbuf *buf,
41 const struct commit *commit)
42 {
43 static struct git_attr *attr_export_subst;
44 struct git_attr_check check[1];
45
46 if (!commit)
47 return 0;
48
49 if (!attr_export_subst)
50 attr_export_subst = git_attr("export-subst", 12);
51
52 check[0].attr = attr_export_subst;
53 if (git_checkattr(path, ARRAY_SIZE(check), check))
54 return 0;
55 if (!ATTR_TRUE(check[0].value))
56 return 0;
57
58 format_subst(commit, src, len, buf);
59 return 1;
60 }
61
62 void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
63 unsigned int mode, enum object_type *type,
64 unsigned long *sizep,
65 const struct commit *commit)
66 {
67 void *buffer;
68
69 buffer = read_sha1_file(sha1, type, sizep);
70 if (buffer && S_ISREG(mode)) {
71 struct strbuf buf;
72 size_t size = 0;
73
74 strbuf_init(&buf, 0);
75 strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
76 convert_to_working_tree(path, buf.buf, buf.len, &buf);
77 convert_to_archive(path, buf.buf, buf.len, &buf, commit);
78 buffer = strbuf_detach(&buf, &size);
79 *sizep = size;
80 }
81
82 return buffer;
83 }
84
008d896 Teach new attribute 'export-ignore' to git-archive
René Scharfe authored
85 int is_archive_path_ignored(const char *path)
86 {
87 static struct git_attr *attr_export_ignore;
88 struct git_attr_check check[1];
89
90 if (!attr_export_ignore)
91 attr_export_ignore = git_attr("export-ignore", 13);
92
93 check[0].attr = attr_export_ignore;
94 if (git_checkattr(path, ARRAY_SIZE(check), check))
95 return 0;
96 return ATTR_TRUE(check[0].value);
97 }
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