dir.h: move struct exclude declaration to top level
[git.git] / notes-utils.c
blobb64dc1b0219928ac149894c99a63dcc9fd419668
1 #include "cache.h"
2 #include "commit.h"
3 #include "refs.h"
4 #include "notes-utils.h"
6 void create_notes_commit(struct notes_tree *t, struct commit_list *parents,
7 const char *msg, size_t msg_len,
8 unsigned char *result_sha1)
10 unsigned char tree_sha1[20];
12 assert(t->initialized);
14 if (write_notes_tree(t, tree_sha1))
15 die("Failed to write notes tree to database");
17 if (!parents) {
18 /* Deduce parent commit from t->ref */
19 unsigned char parent_sha1[20];
20 if (!read_ref(t->ref, parent_sha1)) {
21 struct commit *parent = lookup_commit(parent_sha1);
22 if (parse_commit(parent))
23 die("Failed to find/parse commit %s", t->ref);
24 commit_list_insert(parent, &parents);
26 /* else: t->ref points to nothing, assume root/orphan commit */
29 if (commit_tree(msg, msg_len, tree_sha1, parents, result_sha1, NULL, NULL))
30 die("Failed to commit notes tree to database");
33 void commit_notes(struct notes_tree *t, const char *msg)
35 struct strbuf buf = STRBUF_INIT;
36 unsigned char commit_sha1[20];
38 if (!t)
39 t = &default_notes_tree;
40 if (!t->initialized || !t->ref || !*t->ref)
41 die(_("Cannot commit uninitialized/unreferenced notes tree"));
42 if (!t->dirty)
43 return; /* don't have to commit an unchanged tree */
45 /* Prepare commit message and reflog message */
46 strbuf_addstr(&buf, msg);
47 if (buf.buf[buf.len - 1] != '\n')
48 strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */
50 create_notes_commit(t, NULL, buf.buf, buf.len, commit_sha1);
51 strbuf_insert(&buf, 0, "notes: ", 7); /* commit message starts at index 7 */
52 update_ref(buf.buf, t->ref, commit_sha1, NULL, 0,
53 UPDATE_REFS_DIE_ON_ERR);
55 strbuf_release(&buf);
58 static combine_notes_fn parse_combine_notes_fn(const char *v)
60 if (!strcasecmp(v, "overwrite"))
61 return combine_notes_overwrite;
62 else if (!strcasecmp(v, "ignore"))
63 return combine_notes_ignore;
64 else if (!strcasecmp(v, "concatenate"))
65 return combine_notes_concatenate;
66 else if (!strcasecmp(v, "cat_sort_uniq"))
67 return combine_notes_cat_sort_uniq;
68 else
69 return NULL;
72 static int notes_rewrite_config(const char *k, const char *v, void *cb)
74 struct notes_rewrite_cfg *c = cb;
75 if (starts_with(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) {
76 c->enabled = git_config_bool(k, v);
77 return 0;
78 } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) {
79 if (!v)
80 return config_error_nonbool(k);
81 c->combine = parse_combine_notes_fn(v);
82 if (!c->combine) {
83 error(_("Bad notes.rewriteMode value: '%s'"), v);
84 return 1;
86 return 0;
87 } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) {
88 /* note that a refs/ prefix is implied in the
89 * underlying for_each_glob_ref */
90 if (starts_with(v, "refs/notes/"))
91 string_list_add_refs_by_glob(c->refs, v);
92 else
93 warning(_("Refusing to rewrite notes in %s"
94 " (outside of refs/notes/)"), v);
95 return 0;
98 return 0;
102 struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd)
104 struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg));
105 const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT);
106 const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT);
107 c->cmd = cmd;
108 c->enabled = 1;
109 c->combine = combine_notes_concatenate;
110 c->refs = xcalloc(1, sizeof(struct string_list));
111 c->refs->strdup_strings = 1;
112 c->refs_from_env = 0;
113 c->mode_from_env = 0;
114 if (rewrite_mode_env) {
115 c->mode_from_env = 1;
116 c->combine = parse_combine_notes_fn(rewrite_mode_env);
117 if (!c->combine)
118 /* TRANSLATORS: The first %s is the name of the
119 environment variable, the second %s is its value */
120 error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT,
121 rewrite_mode_env);
123 if (rewrite_refs_env) {
124 c->refs_from_env = 1;
125 string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env);
127 git_config(notes_rewrite_config, c);
128 if (!c->enabled || !c->refs->nr) {
129 string_list_clear(c->refs, 0);
130 free(c->refs);
131 free(c);
132 return NULL;
134 c->trees = load_notes_trees(c->refs);
135 string_list_clear(c->refs, 0);
136 free(c->refs);
137 return c;
140 int copy_note_for_rewrite(struct notes_rewrite_cfg *c,
141 const unsigned char *from_obj, const unsigned char *to_obj)
143 int ret = 0;
144 int i;
145 for (i = 0; c->trees[i]; i++)
146 ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret;
147 return ret;
150 void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c, const char *msg)
152 int i;
153 for (i = 0; c->trees[i]; i++) {
154 commit_notes(c->trees[i], msg);
155 free_notes(c->trees[i]);
157 free(c->trees);
158 free(c);