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Commit | Line | Data |
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c64ed70d JH |
1 | #include "cache.h" |
2 | #include "tag.h" | |
3 | #include "commit.h" | |
4 | #include "tree.h" | |
5 | #include "blob.h" | |
6 | #include "diff.h" | |
7 | #include "tree-walk.h" | |
8 | #include "revision.h" | |
9 | #include "list-objects.h" | |
25ec7bca JH |
10 | #include "list-objects-filter.h" |
11 | #include "list-objects-filter-options.h" | |
df11e196 | 12 | #include "packfile.h" |
cbd53a21 | 13 | #include "object-store.h" |
c64ed70d | 14 | |
f447a499 MD |
15 | struct traversal_context { |
16 | struct rev_info *revs; | |
17 | show_object_fn show_object; | |
18 | show_commit_fn show_commit; | |
19 | void *show_data; | |
20 | filter_object_fn filter_fn; | |
21 | void *filter_data; | |
22 | }; | |
23 | ||
24 | static void process_blob(struct traversal_context *ctx, | |
c64ed70d | 25 | struct blob *blob, |
bd64516a | 26 | struct strbuf *path, |
f447a499 | 27 | const char *name) |
c64ed70d JH |
28 | { |
29 | struct object *obj = &blob->object; | |
de1e67d0 | 30 | size_t pathlen; |
25ec7bca | 31 | enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW; |
c64ed70d | 32 | |
f447a499 | 33 | if (!ctx->revs->blob_objects) |
c64ed70d | 34 | return; |
a301b0c8 MK |
35 | if (!obj) |
36 | die("bad blob object"); | |
c64ed70d JH |
37 | if (obj->flags & (UNINTERESTING | SEEN)) |
38 | return; | |
de1e67d0 | 39 | |
df11e196 JT |
40 | /* |
41 | * Pre-filter known-missing objects when explicitly requested. | |
42 | * Otherwise, a missing object error message may be reported | |
43 | * later (depending on other filtering criteria). | |
44 | * | |
45 | * Note that this "--exclude-promisor-objects" pre-filtering | |
46 | * may cause the actual filter to report an incomplete list | |
47 | * of missing objects. | |
48 | */ | |
f447a499 | 49 | if (ctx->revs->exclude_promisor_objects && |
df11e196 JT |
50 | !has_object_file(&obj->oid) && |
51 | is_promisor_object(&obj->oid)) | |
52 | return; | |
53 | ||
de1e67d0 JK |
54 | pathlen = path->len; |
55 | strbuf_addstr(path, name); | |
f447a499 MD |
56 | if (!(obj->flags & USER_GIVEN) && ctx->filter_fn) |
57 | r = ctx->filter_fn(LOFS_BLOB, obj, | |
58 | path->buf, &path->buf[pathlen], | |
59 | ctx->filter_data); | |
25ec7bca JH |
60 | if (r & LOFR_MARK_SEEN) |
61 | obj->flags |= SEEN; | |
62 | if (r & LOFR_DO_SHOW) | |
f447a499 | 63 | ctx->show_object(obj, path->buf, ctx->show_data); |
de1e67d0 | 64 | strbuf_setlen(path, pathlen); |
c64ed70d JH |
65 | } |
66 | ||
6e2f441b LT |
67 | /* |
68 | * Processing a gitlink entry currently does nothing, since | |
69 | * we do not recurse into the subproject. | |
70 | * | |
71 | * We *could* eventually add a flag that actually does that, | |
72 | * which would involve: | |
73 | * - is the subproject actually checked out? | |
74 | * - if so, see if the subproject has already been added | |
75 | * to the alternates list, and add it if not. | |
76 | * - process the commit (or tag) the gitlink points to | |
77 | * recursively. | |
78 | * | |
79 | * However, it's unclear whether there is really ever any | |
80 | * reason to see superprojects and subprojects as such a | |
81 | * "unified" object pool (potentially resulting in a totally | |
82 | * humongous pack - avoiding which was the whole point of | |
83 | * having gitlinks in the first place!). | |
84 | * | |
85 | * So for now, there is just a note that we *could* follow | |
86 | * the link, and how to do it. Whether it necessarily makes | |
87 | * any sense what-so-ever to ever do that is another issue. | |
88 | */ | |
f447a499 | 89 | static void process_gitlink(struct traversal_context *ctx, |
6e2f441b | 90 | const unsigned char *sha1, |
bd64516a | 91 | struct strbuf *path, |
f447a499 | 92 | const char *name) |
6e2f441b LT |
93 | { |
94 | /* Nothing to do */ | |
95 | } | |
96 | ||
92024891 MD |
97 | static void process_tree(struct traversal_context *ctx, |
98 | struct tree *tree, | |
99 | struct strbuf *base, | |
100 | const char *name); | |
101 | ||
102 | static void process_tree_contents(struct traversal_context *ctx, | |
103 | struct tree *tree, | |
104 | struct strbuf *base) | |
105 | { | |
106 | struct tree_desc desc; | |
107 | struct name_entry entry; | |
108 | enum interesting match = ctx->revs->diffopt.pathspec.nr == 0 ? | |
109 | all_entries_interesting : entry_not_interesting; | |
110 | ||
111 | init_tree_desc(&desc, tree->buffer, tree->size); | |
112 | ||
113 | while (tree_entry(&desc, &entry)) { | |
114 | if (match != all_entries_interesting) { | |
115 | match = tree_entry_interesting(&entry, base, 0, | |
116 | &ctx->revs->diffopt.pathspec); | |
117 | if (match == all_entries_not_interesting) | |
118 | break; | |
119 | if (match == entry_not_interesting) | |
120 | continue; | |
121 | } | |
122 | ||
123 | if (S_ISDIR(entry.mode)) | |
124 | process_tree(ctx, | |
125 | lookup_tree(the_repository, entry.oid), | |
126 | base, entry.path); | |
127 | else if (S_ISGITLINK(entry.mode)) | |
128 | process_gitlink(ctx, entry.oid->hash, | |
129 | base, entry.path); | |
130 | else | |
131 | process_blob(ctx, | |
132 | lookup_blob(the_repository, entry.oid), | |
133 | base, entry.path); | |
134 | } | |
135 | } | |
136 | ||
f447a499 | 137 | static void process_tree(struct traversal_context *ctx, |
c64ed70d | 138 | struct tree *tree, |
cc5fa2fd | 139 | struct strbuf *base, |
f447a499 | 140 | const char *name) |
c64ed70d JH |
141 | { |
142 | struct object *obj = &tree->object; | |
f447a499 | 143 | struct rev_info *revs = ctx->revs; |
cc5fa2fd | 144 | int baselen = base->len; |
25ec7bca | 145 | enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW; |
c64ed70d JH |
146 | |
147 | if (!revs->tree_objects) | |
148 | return; | |
a301b0c8 MK |
149 | if (!obj) |
150 | die("bad tree object"); | |
c64ed70d JH |
151 | if (obj->flags & (UNINTERESTING | SEEN)) |
152 | return; | |
f1d02daa | 153 | if (parse_tree_gently(tree, 1) < 0) { |
2db1a43f VM |
154 | if (revs->ignore_missing_links) |
155 | return; | |
df11e196 JT |
156 | |
157 | /* | |
158 | * Pre-filter known-missing tree objects when explicitly | |
159 | * requested. This may cause the actual filter to report | |
160 | * an incomplete list of missing objects. | |
161 | */ | |
162 | if (revs->exclude_promisor_objects && | |
163 | is_promisor_object(&obj->oid)) | |
164 | return; | |
165 | ||
f2fd0760 | 166 | die("bad tree object %s", oid_to_hex(&obj->oid)); |
2db1a43f | 167 | } |
13528ab3 | 168 | |
13528ab3 | 169 | strbuf_addstr(base, name); |
f447a499 MD |
170 | if (!(obj->flags & USER_GIVEN) && ctx->filter_fn) |
171 | r = ctx->filter_fn(LOFS_BEGIN_TREE, obj, | |
172 | base->buf, &base->buf[baselen], | |
173 | ctx->filter_data); | |
25ec7bca JH |
174 | if (r & LOFR_MARK_SEEN) |
175 | obj->flags |= SEEN; | |
176 | if (r & LOFR_DO_SHOW) | |
f447a499 | 177 | ctx->show_object(obj, base->buf, ctx->show_data); |
13528ab3 JK |
178 | if (base->len) |
179 | strbuf_addch(base, '/'); | |
cc5fa2fd | 180 | |
92024891 | 181 | process_tree_contents(ctx, tree, base); |
25ec7bca | 182 | |
f447a499 MD |
183 | if (!(obj->flags & USER_GIVEN) && ctx->filter_fn) { |
184 | r = ctx->filter_fn(LOFS_END_TREE, obj, | |
185 | base->buf, &base->buf[baselen], | |
186 | ctx->filter_data); | |
25ec7bca JH |
187 | if (r & LOFR_MARK_SEEN) |
188 | obj->flags |= SEEN; | |
189 | if (r & LOFR_DO_SHOW) | |
f447a499 | 190 | ctx->show_object(obj, base->buf, ctx->show_data); |
25ec7bca JH |
191 | } |
192 | ||
cc5fa2fd | 193 | strbuf_setlen(base, baselen); |
6e454b9a | 194 | free_tree_buffer(tree); |
c64ed70d JH |
195 | } |
196 | ||
8d1d8f83 JH |
197 | static void mark_edge_parents_uninteresting(struct commit *commit, |
198 | struct rev_info *revs, | |
199 | show_edge_fn show_edge) | |
200 | { | |
201 | struct commit_list *parents; | |
202 | ||
203 | for (parents = commit->parents; parents; parents = parents->next) { | |
204 | struct commit *parent = parents->item; | |
205 | if (!(parent->object.flags & UNINTERESTING)) | |
206 | continue; | |
2e27bd77 | 207 | mark_tree_uninteresting(get_commit_tree(parent)); |
8d1d8f83 JH |
208 | if (revs->edge_hint && !(parent->object.flags & SHOWN)) { |
209 | parent->object.flags |= SHOWN; | |
210 | show_edge(parent); | |
211 | } | |
212 | } | |
213 | } | |
214 | ||
e76a5fb4 | 215 | void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) |
8d1d8f83 | 216 | { |
e76a5fb4 | 217 | struct commit_list *list; |
fbd4a703 NTND |
218 | int i; |
219 | ||
e76a5fb4 | 220 | for (list = revs->commits; list; list = list->next) { |
8d1d8f83 JH |
221 | struct commit *commit = list->item; |
222 | ||
223 | if (commit->object.flags & UNINTERESTING) { | |
2e27bd77 | 224 | mark_tree_uninteresting(get_commit_tree(commit)); |
1684c1b2 | 225 | if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) { |
fbd4a703 NTND |
226 | commit->object.flags |= SHOWN; |
227 | show_edge(commit); | |
228 | } | |
8d1d8f83 JH |
229 | continue; |
230 | } | |
231 | mark_edge_parents_uninteresting(commit, revs, show_edge); | |
232 | } | |
1684c1b2 | 233 | if (revs->edge_hint_aggressive) { |
200abe74 JK |
234 | for (i = 0; i < revs->cmdline.nr; i++) { |
235 | struct object *obj = revs->cmdline.rev[i].item; | |
236 | struct commit *commit = (struct commit *)obj; | |
237 | if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING)) | |
238 | continue; | |
2e27bd77 | 239 | mark_tree_uninteresting(get_commit_tree(commit)); |
200abe74 JK |
240 | if (!(obj->flags & SHOWN)) { |
241 | obj->flags |= SHOWN; | |
242 | show_edge(commit); | |
243 | } | |
fbd4a703 NTND |
244 | } |
245 | } | |
8d1d8f83 JH |
246 | } |
247 | ||
8d2dfc49 LT |
248 | static void add_pending_tree(struct rev_info *revs, struct tree *tree) |
249 | { | |
250 | add_pending_object(revs, &tree->object, ""); | |
251 | } | |
252 | ||
f447a499 MD |
253 | static void traverse_trees_and_blobs(struct traversal_context *ctx, |
254 | struct strbuf *base) | |
c64ed70d JH |
255 | { |
256 | int i; | |
c64ed70d | 257 | |
91904f56 SB |
258 | assert(base->len == 0); |
259 | ||
f447a499 MD |
260 | for (i = 0; i < ctx->revs->pending.nr; i++) { |
261 | struct object_array_entry *pending = ctx->revs->pending.objects + i; | |
c64ed70d JH |
262 | struct object *obj = pending->item; |
263 | const char *name = pending->name; | |
20739490 | 264 | const char *path = pending->path; |
c64ed70d JH |
265 | if (obj->flags & (UNINTERESTING | SEEN)) |
266 | continue; | |
267 | if (obj->type == OBJ_TAG) { | |
268 | obj->flags |= SEEN; | |
f447a499 | 269 | ctx->show_object(obj, name, ctx->show_data); |
c64ed70d JH |
270 | continue; |
271 | } | |
20739490 JK |
272 | if (!path) |
273 | path = ""; | |
c64ed70d | 274 | if (obj->type == OBJ_TREE) { |
f447a499 | 275 | process_tree(ctx, (struct tree *)obj, base, path); |
c64ed70d JH |
276 | continue; |
277 | } | |
278 | if (obj->type == OBJ_BLOB) { | |
f447a499 | 279 | process_blob(ctx, (struct blob *)obj, base, path); |
c64ed70d JH |
280 | continue; |
281 | } | |
282 | die("unknown pending object %s (%s)", | |
f2fd0760 | 283 | oid_to_hex(&obj->oid), name); |
c64ed70d | 284 | } |
f447a499 | 285 | object_array_clear(&ctx->revs->pending); |
91904f56 SB |
286 | } |
287 | ||
f447a499 | 288 | static void do_traverse(struct traversal_context *ctx) |
91904f56 SB |
289 | { |
290 | struct commit *commit; | |
291 | struct strbuf csp; /* callee's scratch pad */ | |
292 | strbuf_init(&csp, PATH_MAX); | |
293 | ||
f447a499 | 294 | while ((commit = get_revision(ctx->revs)) != NULL) { |
91904f56 SB |
295 | /* |
296 | * an uninteresting boundary commit may not have its tree | |
297 | * parsed yet, but we are not going to show them anyway | |
298 | */ | |
2e27bd77 | 299 | if (get_commit_tree(commit)) |
f447a499 MD |
300 | add_pending_tree(ctx->revs, get_commit_tree(commit)); |
301 | ctx->show_commit(commit, ctx->show_data); | |
ce5b6f9b | 302 | |
f447a499 | 303 | if (ctx->revs->tree_blobs_in_commit_order) |
ce5b6f9b SB |
304 | /* |
305 | * NEEDSWORK: Adding the tree and then flushing it here | |
306 | * needs a reallocation for each commit. Can we pass the | |
307 | * tree directory without allocation churn? | |
308 | */ | |
f447a499 | 309 | traverse_trees_and_blobs(ctx, &csp); |
91904f56 | 310 | } |
f447a499 | 311 | traverse_trees_and_blobs(ctx, &csp); |
91904f56 | 312 | strbuf_release(&csp); |
c64ed70d | 313 | } |
25ec7bca JH |
314 | |
315 | void traverse_commit_list(struct rev_info *revs, | |
316 | show_commit_fn show_commit, | |
317 | show_object_fn show_object, | |
318 | void *show_data) | |
319 | { | |
f447a499 MD |
320 | struct traversal_context ctx; |
321 | ctx.revs = revs; | |
322 | ctx.show_commit = show_commit; | |
323 | ctx.show_object = show_object; | |
324 | ctx.show_data = show_data; | |
325 | ctx.filter_fn = NULL; | |
326 | ctx.filter_data = NULL; | |
327 | do_traverse(&ctx); | |
25ec7bca JH |
328 | } |
329 | ||
330 | void traverse_commit_list_filtered( | |
331 | struct list_objects_filter_options *filter_options, | |
332 | struct rev_info *revs, | |
333 | show_commit_fn show_commit, | |
334 | show_object_fn show_object, | |
335 | void *show_data, | |
336 | struct oidset *omitted) | |
337 | { | |
f447a499 | 338 | struct traversal_context ctx; |
25ec7bca | 339 | filter_free_fn filter_free_fn = NULL; |
f447a499 MD |
340 | |
341 | ctx.revs = revs; | |
342 | ctx.show_object = show_object; | |
343 | ctx.show_commit = show_commit; | |
344 | ctx.show_data = show_data; | |
345 | ctx.filter_fn = NULL; | |
346 | ||
347 | ctx.filter_data = list_objects_filter__init(omitted, filter_options, | |
348 | &ctx.filter_fn, &filter_free_fn); | |
349 | do_traverse(&ctx); | |
350 | if (ctx.filter_data && filter_free_fn) | |
351 | filter_free_fn(ctx.filter_data); | |
25ec7bca | 352 | } |