1 /* shared.c: global vars + some callback functions
3 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text)
9 #define USE_THE_REPOSITORY_VARIABLE
13 struct cgit_repolist cgit_repolist;
14 struct cgit_context ctx;
16 int chk_zero(int result, char *msg)
23 int chk_positive(int result, char *msg)
30 int chk_non_negative(int result, char *msg)
37 char *cgit_default_repo_desc = "[no description]";
38 struct cgit_repo *cgit_add_repo(const char *url)
40 struct cgit_repo *ret;
42 if (++cgit_repolist.count > cgit_repolist.length) {
43 if (cgit_repolist.length == 0)
44 cgit_repolist.length = 8;
46 cgit_repolist.length *= 2;
47 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
48 cgit_repolist.length *
49 sizeof(struct cgit_repo));
52 ret = &cgit_repolist.repos[cgit_repolist.count-1];
53 memset(ret, 0, sizeof(struct cgit_repo));
54 ret->url = trim_end(url, '/');
57 ret->desc = cgit_default_repo_desc;
58 ret->extra_head_content = NULL;
61 ret->section = ctx.cfg.section;
62 ret->snapshots = ctx.cfg.snapshots;
63 ret->enable_blame = ctx.cfg.enable_blame;
64 ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
65 ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
66 ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
67 ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
68 ret->enable_subject_links = ctx.cfg.enable_subject_links;
69 ret->enable_html_serving = ctx.cfg.enable_html_serving;
70 ret->max_stats = ctx.cfg.max_stats;
71 ret->branch_sort = ctx.cfg.branch_sort;
72 ret->commit_sort = ctx.cfg.commit_sort;
73 ret->module_link = ctx.cfg.module_link;
74 ret->readme = ctx.cfg.readme;
76 ret->about_filter = ctx.cfg.about_filter;
77 ret->commit_filter = ctx.cfg.commit_filter;
78 ret->source_filter = ctx.cfg.source_filter;
79 ret->email_filter = ctx.cfg.email_filter;
80 ret->owner_filter = ctx.cfg.owner_filter;
81 ret->clone_url = ctx.cfg.clone_url;
82 ret->submodules.strdup_strings = 1;
83 ret->hide = ret->ignore = 0;
87 struct cgit_repo *cgit_get_repoinfo(const char *url)
90 struct cgit_repo *repo;
92 for (i = 0; i < cgit_repolist.count; i++) {
93 repo = &cgit_repolist.repos[i];
96 if (!strcmp(repo->url, url))
102 void cgit_free_commitinfo(struct commitinfo *info)
105 free(info->author_email);
106 free(info->committer);
107 free(info->committer_email);
110 free(info->msg_encoding);
114 char *trim_end(const char *str, char c)
121 while (len > 0 && str[len - 1] == c)
125 return xstrndup(str, len);
128 char *ensure_end(const char *str, char c)
130 size_t len = strlen(str);
133 if (len && str[len - 1] == c)
134 return xstrndup(str, len);
136 result = xmalloc(len + 2);
137 memcpy(result, str, len);
139 result[len + 1] = '\0';
143 void strbuf_ensure_end(struct strbuf *sb, char c)
145 if (!sb->len || sb->buf[sb->len - 1] != c)
149 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
153 if (list->count >= list->alloc) {
154 list->alloc += (list->alloc ? list->alloc : 4);
155 size = list->alloc * sizeof(struct refinfo *);
156 list->refs = xrealloc(list->refs, size);
158 list->refs[list->count++] = ref;
161 static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
165 ref = xmalloc(sizeof (struct refinfo));
166 ref->refname = xstrdup(refname);
167 ref->object = parse_object(the_repository, oid);
168 switch (ref->object->type) {
170 ref->tag = cgit_parse_tag((struct tag *)ref->object);
173 ref->commit = cgit_parse_commit((struct commit *)ref->object);
179 void cgit_free_taginfo(struct taginfo *tag)
183 if (tag->tagger_email)
184 free(tag->tagger_email);
190 static void cgit_free_refinfo(struct refinfo *ref)
193 free((char *)ref->refname);
194 switch (ref->object->type) {
196 cgit_free_taginfo(ref->tag);
199 cgit_free_commitinfo(ref->commit);
205 void cgit_free_reflist_inner(struct reflist *list)
209 for (i = 0; i < list->count; i++) {
210 cgit_free_refinfo(list->refs[i]);
215 int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
218 struct reflist *list = (struct reflist *)cb_data;
219 struct refinfo *info = cgit_mk_refinfo(refname, oid);
222 cgit_add_ref(list, info);
226 void cgit_diff_tree_cb(struct diff_queue_struct *q,
227 struct diff_options *options, void *data)
231 for (i = 0; i < q->nr; i++) {
232 if (q->queue[i]->status == 'U')
234 ((filepair_fn)data)(q->queue[i]);
238 static int load_mmfile(mmfile_t *file, const struct object_id *oid)
240 enum object_type type;
242 if (is_null_oid(oid)) {
243 file->ptr = (char *)"";
246 file->ptr = repo_read_object_file(the_repository, oid, &type,
247 (unsigned long *)&file->size);
253 * Receive diff-buffers from xdiff and concatenate them as
254 * needed across multiple callbacks.
256 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
257 * ripped from git and modified to use globals instead of
258 * a special callback-struct.
260 static char *diffbuf = NULL;
261 static int buflen = 0;
263 static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
267 for (i = 0; i < nbuf; i++) {
268 if (mb[i].ptr[mb[i].size-1] != '\n') {
269 /* Incomplete line */
270 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
271 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
272 buflen += mb[i].size;
276 /* we have a complete line */
278 ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
281 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
282 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
283 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
289 ((linediff_fn)priv)(diffbuf, buflen);
297 int cgit_diff_files(const struct object_id *old_oid,
298 const struct object_id *new_oid, unsigned long *old_size,
299 unsigned long *new_size, int *binary, int context,
300 int ignorews, linediff_fn fn)
302 mmfile_t file1, file2;
303 xpparam_t diff_params;
304 xdemitconf_t emit_params;
307 if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
310 *old_size = file1.size;
311 *new_size = file2.size;
313 if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
314 (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
323 memset(&diff_params, 0, sizeof(diff_params));
324 memset(&emit_params, 0, sizeof(emit_params));
325 memset(&emit_cb, 0, sizeof(emit_cb));
326 diff_params.flags = XDF_NEED_MINIMAL;
328 diff_params.flags |= XDF_IGNORE_WHITESPACE;
329 emit_params.ctxlen = context > 0 ? context : 3;
330 emit_params.flags = XDL_EMIT_FUNCNAMES;
331 emit_cb.out_line = filediff_cb;
333 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
341 void cgit_diff_tree(const struct object_id *old_oid,
342 const struct object_id *new_oid,
343 filepair_fn fn, const char *prefix, int ignorews)
345 struct diff_options opt;
346 struct pathspec_item *item;
348 repo_diff_setup(the_repository, &opt);
349 opt.output_format = DIFF_FORMAT_CALLBACK;
350 opt.detect_rename = 1;
351 opt.rename_limit = ctx.cfg.renamelimit;
352 opt.flags.recursive = 1;
354 DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
355 opt.format_callback = cgit_diff_tree_cb;
356 opt.format_callback_data = fn;
358 item = xcalloc(1, sizeof(*item));
359 item->match = xstrdup(prefix);
360 item->len = strlen(prefix);
362 opt.pathspec.items = item;
364 diff_setup_done(&opt);
366 if (old_oid && !is_null_oid(old_oid))
367 diff_tree_oid(old_oid, new_oid, "", &opt);
369 diff_root_tree_oid(new_oid, "", &opt);
374 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
376 const struct object_id *old_oid = NULL;
379 old_oid = &commit->parents->item->object.oid;
380 cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
384 int cgit_parse_snapshots_mask(const char *str)
386 struct string_list tokens = STRING_LIST_INIT_DUP;
387 struct string_list_item *item;
388 const struct cgit_snapshot_format *f;
391 /* favor legacy setting */
395 if (strcmp(str, "all") == 0)
398 string_list_split(&tokens, str, ' ', -1);
399 string_list_remove_empty_items(&tokens, 0);
401 for_each_string_list_item(item, &tokens) {
402 for (f = cgit_snapshot_formats; f->suffix; f++) {
403 if (!strcmp(item->string, f->suffix) ||
404 !strcmp(item->string, f->suffix + 1)) {
405 rv |= cgit_snapshot_format_bit(f);
411 string_list_clear(&tokens, 0);
420 void cgit_prepare_repo_env(struct cgit_repo * repo)
422 cgit_env_var env_vars[] = {
423 { .name = "CGIT_REPO_URL", .value = repo->url },
424 { .name = "CGIT_REPO_NAME", .value = repo->name },
425 { .name = "CGIT_REPO_PATH", .value = repo->path },
426 { .name = "CGIT_REPO_OWNER", .value = repo->owner },
427 { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
428 { .name = "CGIT_REPO_SECTION", .value = repo->section },
429 { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
431 int env_var_count = ARRAY_SIZE(env_vars);
433 static char *warn = "cgit warning: failed to set env: %s=%s\n";
436 q = p + env_var_count;
438 if (p->value && setenv(p->name, p->value, 1))
439 fprintf(stderr, warn, p->name, p->value);
442 /* Read the content of the specified file into a newly allocated buffer,
443 * zeroterminate the buffer and return 0 on success, errno otherwise.
445 int readfile(const char *path, char **buf, size_t *size)
450 fd = open(path, O_RDONLY);
453 if (fstat(fd, &st)) {
458 if (!S_ISREG(st.st_mode)) {
462 *buf = xmalloc(st.st_size + 1);
463 *size = read_in_full(fd, *buf, st.st_size);
465 (*buf)[*size] = '\0';
467 return (*size == st.st_size ? 0 : e);
470 static int is_token_char(char c)
472 return isalnum(c) || c == '_';
475 /* Replace name with getenv(name), return pointer to zero-terminating char
477 static char *expand_macro(char *name, int maxlength)
483 value = getenv(name);
485 len = strlen(value) + 1;
488 strlcpy(name, value, len);
494 #define EXPBUFSIZE (1024 * 8)
496 /* Replace all tokens prefixed by '$' in the specified text with the
497 * value of the named environment variable.
498 * NB: the return value is a static buffer, i.e. it must be strdup'd
501 char *expand_macros(const char *txt)
503 static char result[EXPBUFSIZE];
509 while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
512 if (!is_token_char(*txt)) {
515 len = result + EXPBUFSIZE - start - 1;
516 p = expand_macro(start, len) - 1;
534 if (start && p - start > 0) {
535 len = result + EXPBUFSIZE - start - 1;
536 p = expand_macro(start, len);
542 char *get_mimetype_for_filename(const char *filename)
544 char *ext, *mimetype, line[1024];
545 struct string_list list = STRING_LIST_INIT_NODUP;
548 struct string_list_item *mime;
553 ext = strrchr(filename, '.');
559 mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
561 return xstrdup(mime->util);
563 if (!ctx.cfg.mimetype_file)
565 file = fopen(ctx.cfg.mimetype_file, "r");
568 while (fgets(line, sizeof(line), file)) {
569 if (!line[0] || line[0] == '#')
571 string_list_split_in_place(&list, line, " \t\r\n", -1);
572 string_list_remove_empty_items(&list, 0);
573 mimetype = list.items[0].string;
574 for (i = 1; i < list.nr; i++) {
575 if (!strcasecmp(ext, list.items[i].string)) {
577 return xstrdup(mimetype);
580 string_list_clear(&list, 0);