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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 LT |
6 | #include "cache.h" |
7 | ||
8 | #include <pwd.h> | |
9 | #include <time.h> | |
27de946d DW |
10 | #include <string.h> |
11 | #include <ctype.h> | |
12 | #include <time.h> | |
e83c5163 LT |
13 | |
14 | #define BLOCKING (1ul << 14) | |
e83c5163 LT |
15 | |
16 | /* | |
e83c5163 LT |
17 | * FIXME! Share the code with "write-tree.c" |
18 | */ | |
19 | static void init_buffer(char **bufp, unsigned int *sizep) | |
20 | { | |
812666c8 | 21 | char *buf = xmalloc(BLOCKING); |
a44c9a5e | 22 | *sizep = 0; |
e83c5163 LT |
23 | *bufp = buf; |
24 | } | |
25 | ||
26 | static void add_buffer(char **bufp, unsigned int *sizep, const char *fmt, ...) | |
27 | { | |
28 | char one_line[2048]; | |
29 | va_list args; | |
30 | int len; | |
31 | unsigned long alloc, size, newsize; | |
32 | char *buf; | |
33 | ||
34 | va_start(args, fmt); | |
35 | len = vsnprintf(one_line, sizeof(one_line), fmt, args); | |
36 | va_end(args); | |
37 | size = *sizep; | |
38 | newsize = size + len; | |
39 | alloc = (size + 32767) & ~32767; | |
40 | buf = *bufp; | |
41 | if (newsize > alloc) { | |
aebb2679 | 42 | alloc = (newsize + 32767) & ~32767; |
812666c8 | 43 | buf = xrealloc(buf, alloc); |
e83c5163 LT |
44 | *bufp = buf; |
45 | } | |
46 | *sizep = newsize; | |
47 | memcpy(buf + size, one_line, len); | |
48 | } | |
49 | ||
e83c5163 LT |
50 | static void remove_special(char *p) |
51 | { | |
52 | char c; | |
74b2428f | 53 | char *dst = p, *src = p; |
e83c5163 LT |
54 | |
55 | for (;;) { | |
74b2428f BR |
56 | c = *src; |
57 | src++; | |
e83c5163 LT |
58 | switch(c) { |
59 | case '\n': case '<': case '>': | |
60 | continue; | |
61 | } | |
62 | *dst++ = c; | |
63 | if (!c) | |
64 | break; | |
65 | } | |
5e5128ed LT |
66 | |
67 | /* | |
68 | * Go back, and remove crud from the end: some people | |
69 | * have commas etc in their gecos field | |
70 | */ | |
71 | dst--; | |
72 | while (--dst >= p) { | |
73 | unsigned char c = *dst; | |
74 | switch (c) { | |
75 | case ',': case ';': case '.': | |
76 | *dst = 0; | |
77 | continue; | |
78 | } | |
79 | break; | |
80 | } | |
e83c5163 LT |
81 | } |
82 | ||
d0d7cbe7 LT |
83 | static void check_valid(unsigned char *sha1, const char *expect) |
84 | { | |
85 | void *buf; | |
86 | char type[20]; | |
87 | unsigned long size; | |
88 | ||
89 | buf = read_sha1_file(sha1, type, &size); | |
90 | if (!buf || strcmp(type, expect)) | |
91 | die("%s is not a valid '%s' object", sha1_to_hex(sha1), expect); | |
92 | free(buf); | |
93 | } | |
94 | ||
e83c5163 | 95 | /* |
c5bac17a JH |
96 | * Having more than two parents is not strange at all, and this is |
97 | * how multi-way merges are represented. | |
e83c5163 LT |
98 | */ |
99 | #define MAXPARENT (16) | |
100 | ||
c5bac17a JH |
101 | static char *commit_tree_usage = "commit-tree <sha1> [-p <sha1>]* < changelog"; |
102 | ||
e83c5163 LT |
103 | int main(int argc, char **argv) |
104 | { | |
105 | int i, len; | |
106 | int parents = 0; | |
107 | unsigned char tree_sha1[20]; | |
108 | unsigned char parent_sha1[MAXPARENT][20]; | |
d6d3f9d0 | 109 | unsigned char commit_sha1[20]; |
b70070f0 GK |
110 | char *gecos, *realgecos, *commitgecos; |
111 | char *email, *commitemail, realemail[1000]; | |
27de946d DW |
112 | char date[20], realdate[20]; |
113 | char *audate; | |
e83c5163 LT |
114 | char comment[1000]; |
115 | struct passwd *pw; | |
e83c5163 LT |
116 | char *buffer; |
117 | unsigned int size; | |
118 | ||
119 | if (argc < 2 || get_sha1_hex(argv[1], tree_sha1) < 0) | |
c5bac17a | 120 | usage(commit_tree_usage); |
e83c5163 | 121 | |
d0d7cbe7 | 122 | check_valid(tree_sha1, "tree"); |
e83c5163 LT |
123 | for (i = 2; i < argc; i += 2) { |
124 | char *a, *b; | |
125 | a = argv[i]; b = argv[i+1]; | |
126 | if (!b || strcmp(a, "-p") || get_sha1_hex(b, parent_sha1[parents])) | |
c5bac17a | 127 | usage(commit_tree_usage); |
d0d7cbe7 | 128 | check_valid(parent_sha1[parents], "commit"); |
e83c5163 LT |
129 | parents++; |
130 | } | |
131 | if (!parents) | |
132 | fprintf(stderr, "Committing initial tree %s\n", argv[1]); | |
133 | pw = getpwuid(getuid()); | |
134 | if (!pw) | |
2de381f9 | 135 | die("You don't exist. Go away!"); |
e83c5163 LT |
136 | realgecos = pw->pw_gecos; |
137 | len = strlen(pw->pw_name); | |
138 | memcpy(realemail, pw->pw_name, len); | |
139 | realemail[len] = '@'; | |
140 | gethostname(realemail+len+1, sizeof(realemail)-len-1); | |
b96afa59 LT |
141 | if (!strchr(realemail+len+1, '.')) { |
142 | strcat(realemail, "."); | |
143 | getdomainname(realemail+strlen(realemail), sizeof(realemail)-strlen(realemail)-1); | |
144 | } | |
27de946d | 145 | |
ecee9d9e | 146 | datestamp(realdate, sizeof(realdate)); |
27de946d | 147 | strcpy(date, realdate); |
e83c5163 | 148 | |
b70070f0 GK |
149 | commitgecos = getenv("COMMIT_AUTHOR_NAME") ? : realgecos; |
150 | commitemail = getenv("COMMIT_AUTHOR_EMAIL") ? : realemail; | |
bf16c71e LT |
151 | gecos = getenv("AUTHOR_NAME") ? : realgecos; |
152 | email = getenv("AUTHOR_EMAIL") ? : realemail; | |
27de946d DW |
153 | audate = getenv("AUTHOR_DATE"); |
154 | if (audate) | |
ecee9d9e | 155 | parse_date(audate, date, sizeof(date)); |
e83c5163 | 156 | |
b70070f0 GK |
157 | remove_special(gecos); remove_special(realgecos); remove_special(commitgecos); |
158 | remove_special(email); remove_special(realemail); remove_special(commitemail); | |
e83c5163 LT |
159 | |
160 | init_buffer(&buffer, &size); | |
161 | add_buffer(&buffer, &size, "tree %s\n", sha1_to_hex(tree_sha1)); | |
162 | ||
163 | /* | |
164 | * NOTE! This ordering means that the same exact tree merged with a | |
165 | * different order of parents will be a _different_ changeset even | |
166 | * if everything else stays the same. | |
167 | */ | |
168 | for (i = 0; i < parents; i++) | |
169 | add_buffer(&buffer, &size, "parent %s\n", sha1_to_hex(parent_sha1[i])); | |
170 | ||
171 | /* Person/date information */ | |
172 | add_buffer(&buffer, &size, "author %s <%s> %s\n", gecos, email, date); | |
b70070f0 | 173 | add_buffer(&buffer, &size, "committer %s <%s> %s\n\n", commitgecos, commitemail, realdate); |
e83c5163 LT |
174 | |
175 | /* And add the comment */ | |
176 | while (fgets(comment, sizeof(comment), stdin) != NULL) | |
177 | add_buffer(&buffer, &size, "%s", comment); | |
178 | ||
a44c9a5e | 179 | write_sha1_file(buffer, size, "commit", commit_sha1); |
d6d3f9d0 | 180 | printf("%s\n", sha1_to_hex(commit_sha1)); |
e83c5163 LT |
181 | return 0; |
182 | } |