pretty_print_commit: add different formats
[git/git.git] / rev-list.c
1 #include "cache.h"
2 #include "commit.h"
3
4 #define SEEN (1u << 0)
5 #define INTERESTING (1u << 1)
6 #define UNINTERESTING (1u << 2)
7
8 static const char rev_list_usage[] =
9 "usage: git-rev-list [OPTION] commit-id <commit-id>\n"
10 " --max-count=nr\n"
11 " --max-age=epoch\n"
12 " --min-age=epoch\n"
13 " --header\n"
14 " --pretty";
15
16 static int verbose_header = 0;
17 static int show_parents = 0;
18 static int hdr_termination = 0;
19 static const char *prefix = "";
20 static unsigned long max_age = -1;
21 static unsigned long min_age = -1;
22 static int max_count = -1;
23 static enum cmit_fmt commit_format = CMIT_FMT_RAW;
24
25 static void show_commit(struct commit *commit)
26 {
27 printf("%s%s", prefix, sha1_to_hex(commit->object.sha1));
28 if (show_parents) {
29 struct commit_list *parents = commit->parents;
30 while (parents) {
31 printf(" %s", sha1_to_hex(parents->item->object.sha1));
32 parents = parents->next;
33 }
34 }
35 putchar('\n');
36 if (verbose_header) {
37 static char pretty_header[16384];
38 pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
39 printf("%s%c", pretty_header, hdr_termination);
40 }
41 }
42
43 static void show_commit_list(struct commit_list *list)
44 {
45 while (list) {
46 struct commit *commit = pop_most_recent_commit(&list, SEEN);
47
48 if (commit->object.flags & UNINTERESTING)
49 continue;
50 if (min_age != -1 && (commit->date > min_age))
51 continue;
52 if (max_age != -1 && (commit->date < max_age))
53 break;
54 if (max_count != -1 && !max_count--)
55 break;
56 show_commit(commit);
57 }
58 }
59
60 static void mark_parents_uninteresting(struct commit *commit)
61 {
62 struct commit_list *parents = commit->parents;
63
64 while (parents) {
65 struct commit *commit = parents->item;
66 commit->object.flags |= UNINTERESTING;
67 parents = parents->next;
68 }
69 }
70
71 static int everybody_uninteresting(struct commit_list *list)
72 {
73 while (list) {
74 struct commit *commit = list->item;
75 list = list->next;
76 if (commit->object.flags & UNINTERESTING)
77 continue;
78 return 0;
79 }
80 return 1;
81 }
82
83 struct commit_list *limit_list(struct commit_list *list)
84 {
85 struct commit_list *newlist = NULL;
86 struct commit_list **p = &newlist;
87 do {
88 struct commit *commit = pop_most_recent_commit(&list, SEEN);
89 struct object *obj = &commit->object;
90
91 if (obj->flags & UNINTERESTING) {
92 mark_parents_uninteresting(commit);
93 if (everybody_uninteresting(list))
94 break;
95 continue;
96 }
97 p = &commit_list_insert(commit, p)->next;
98 } while (list);
99 return newlist;
100 }
101
102 static enum cmit_fmt get_commit_format(const char *arg)
103 {
104 if (!*arg)
105 return CMIT_FMT_DEFAULT;
106 if (!strcmp(arg, "=raw"))
107 return CMIT_FMT_RAW;
108 if (!strcmp(arg, "=medium"))
109 return CMIT_FMT_MEDIUM;
110 if (!strcmp(arg, "=short"))
111 return CMIT_FMT_SHORT;
112 usage(rev_list_usage);
113 }
114
115
116 int main(int argc, char **argv)
117 {
118 struct commit_list *list = NULL;
119 int i, limited = 0;
120
121 for (i = 1 ; i < argc; i++) {
122 int flags;
123 char *arg = argv[i];
124 unsigned char sha1[20];
125 struct commit *commit;
126
127 if (!strncmp(arg, "--max-count=", 12)) {
128 max_count = atoi(arg + 12);
129 continue;
130 }
131 if (!strncmp(arg, "--max-age=", 10)) {
132 max_age = atoi(arg + 10);
133 continue;
134 }
135 if (!strncmp(arg, "--min-age=", 10)) {
136 min_age = atoi(arg + 10);
137 continue;
138 }
139 if (!strcmp(arg, "--header")) {
140 verbose_header = 1;
141 continue;
142 }
143 if (!strncmp(arg, "--pretty", 8)) {
144 commit_format = get_commit_format(arg+8);
145 verbose_header = 1;
146 hdr_termination = '\n';
147 prefix = "commit ";
148 continue;
149 }
150 if (!strcmp(arg, "--parents")) {
151 show_parents = 1;
152 continue;
153 }
154
155 flags = 0;
156 if (*arg == '^') {
157 flags = UNINTERESTING;
158 arg++;
159 limited = 1;
160 }
161 if (get_sha1(arg, sha1))
162 usage(rev_list_usage);
163 commit = lookup_commit_reference(sha1);
164 if (!commit || parse_commit(commit) < 0)
165 die("bad commit object %s", arg);
166 commit->object.flags |= flags;
167 commit_list_insert(commit, &list);
168 }
169
170 if (!list)
171 usage(rev_list_usage);
172
173 if (limited)
174 list = limit_list(list);
175
176 show_commit_list(list);
177 return 0;
178 }