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)
11 struct cgit_repolist cgit_repolist;
12 struct cgit_context ctx;
14 int chk_zero(int result, char *msg)
21 int chk_positive(int result, char *msg)
28 int chk_non_negative(int result, char *msg)
35 char *cgit_default_repo_desc = "[no description]";
36 struct cgit_repo *cgit_add_repo(const char *url)
38 struct cgit_repo *ret;
40 if (++cgit_repolist.count > cgit_repolist.length) {
41 if (cgit_repolist.length == 0)
42 cgit_repolist.length = 8;
44 cgit_repolist.length *= 2;
45 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
46 cgit_repolist.length *
47 sizeof(struct cgit_repo));
50 ret = &cgit_repolist.repos[cgit_repolist.count-1];
51 memset(ret, 0, sizeof(struct cgit_repo));
52 ret->url = trim_end(url, '/');
55 ret->desc = cgit_default_repo_desc;
56 ret->extra_head_content = NULL;
59 ret->section = ctx.cfg.section;
60 ret->snapshots = ctx.cfg.snapshots;
61 ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
62 ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
63 ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
64 ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
65 ret->enable_subject_links = ctx.cfg.enable_subject_links;
66 ret->enable_html_serving = ctx.cfg.enable_html_serving;
67 ret->max_stats = ctx.cfg.max_stats;
68 ret->branch_sort = ctx.cfg.branch_sort;
69 ret->commit_sort = ctx.cfg.commit_sort;
70 ret->module_link = ctx.cfg.module_link;
71 ret->readme = ctx.cfg.readme;
73 ret->about_filter = ctx.cfg.about_filter;
74 ret->commit_filter = ctx.cfg.commit_filter;
75 ret->source_filter = ctx.cfg.source_filter;
76 ret->email_filter = ctx.cfg.email_filter;
77 ret->owner_filter = ctx.cfg.owner_filter;
78 ret->clone_url = ctx.cfg.clone_url;
79 ret->submodules.strdup_strings = 1;
80 ret->hide = ret->ignore = 0;
84 struct cgit_repo *cgit_get_repoinfo(const char *url)
87 struct cgit_repo *repo;
89 for (i = 0; i < cgit_repolist.count; i++) {
90 repo = &cgit_repolist.repos[i];
93 if (!strcmp(repo->url, url))
99 void cgit_free_commitinfo(struct commitinfo *info)
102 free(info->author_email);
103 free(info->committer);
104 free(info->committer_email);
107 free(info->msg_encoding);
111 char *trim_end(const char *str, char c)
118 while (len > 0 && str[len - 1] == c)
122 return xstrndup(str, len);
125 char *ensure_end(const char *str, char c)
127 size_t len = strlen(str);
130 if (len && str[len - 1] == c)
131 return xstrndup(str, len);
133 result = xmalloc(len + 2);
134 memcpy(result, str, len);
136 result[len + 1] = '\0';
140 void strbuf_ensure_end(struct strbuf *sb, char c)
142 if (!sb->len || sb->buf[sb->len - 1] != c)
146 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
150 if (list->count >= list->alloc) {
151 list->alloc += (list->alloc ? list->alloc : 4);
152 size = list->alloc * sizeof(struct refinfo *);
153 list->refs = xrealloc(list->refs, size);
155 list->refs[list->count++] = ref;
158 static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
162 ref = xmalloc(sizeof (struct refinfo));
163 ref->refname = xstrdup(refname);
164 ref->object = parse_object(oid);
165 switch (ref->object->type) {
167 ref->tag = cgit_parse_tag((struct tag *)ref->object);
170 ref->commit = cgit_parse_commit((struct commit *)ref->object);
176 void cgit_free_taginfo(struct taginfo *tag)
180 if (tag->tagger_email)
181 free(tag->tagger_email);
187 static void cgit_free_refinfo(struct refinfo *ref)
190 free((char *)ref->refname);
191 switch (ref->object->type) {
193 cgit_free_taginfo(ref->tag);
196 cgit_free_commitinfo(ref->commit);
202 void cgit_free_reflist_inner(struct reflist *list)
206 for (i = 0; i < list->count; i++) {
207 cgit_free_refinfo(list->refs[i]);
212 int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
215 struct reflist *list = (struct reflist *)cb_data;
216 struct refinfo *info = cgit_mk_refinfo(refname, oid);
219 cgit_add_ref(list, info);
223 void cgit_diff_tree_cb(struct diff_queue_struct *q,
224 struct diff_options *options, void *data)
228 for (i = 0; i < q->nr; i++) {
229 if (q->queue[i]->status == 'U')
231 ((filepair_fn)data)(q->queue[i]);
235 static int load_mmfile(mmfile_t *file, const struct object_id *oid)
237 enum object_type type;
239 if (is_null_oid(oid)) {
240 file->ptr = (char *)"";
243 file->ptr = read_object_file(oid, &type,
244 (unsigned long *)&file->size);
250 * Receive diff-buffers from xdiff and concatenate them as
251 * needed across multiple callbacks.
253 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
254 * ripped from git and modified to use globals instead of
255 * a special callback-struct.
257 static char *diffbuf = NULL;
258 static int buflen = 0;
260 static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
264 for (i = 0; i < nbuf; i++) {
265 if (mb[i].ptr[mb[i].size-1] != '\n') {
266 /* Incomplete line */
267 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
268 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
269 buflen += mb[i].size;
273 /* we have a complete line */
275 ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
278 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
279 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
280 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
286 ((linediff_fn)priv)(diffbuf, buflen);
294 int cgit_diff_files(const struct object_id *old_oid,
295 const struct object_id *new_oid, unsigned long *old_size,
296 unsigned long *new_size, int *binary, int context,
297 int ignorews, linediff_fn fn)
299 mmfile_t file1, file2;
300 xpparam_t diff_params;
301 xdemitconf_t emit_params;
304 if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
307 *old_size = file1.size;
308 *new_size = file2.size;
310 if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
311 (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
320 memset(&diff_params, 0, sizeof(diff_params));
321 memset(&emit_params, 0, sizeof(emit_params));
322 memset(&emit_cb, 0, sizeof(emit_cb));
323 diff_params.flags = XDF_NEED_MINIMAL;
325 diff_params.flags |= XDF_IGNORE_WHITESPACE;
326 emit_params.ctxlen = context > 0 ? context : 3;
327 emit_params.flags = XDL_EMIT_FUNCNAMES;
328 emit_cb.outf = filediff_cb;
330 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
338 void cgit_diff_tree(const struct object_id *old_oid,
339 const struct object_id *new_oid,
340 filepair_fn fn, const char *prefix, int ignorews)
342 struct diff_options opt;
343 struct pathspec_item item;
345 memset(&item, 0, sizeof(item));
347 opt.output_format = DIFF_FORMAT_CALLBACK;
348 opt.detect_rename = 1;
349 opt.rename_limit = ctx.cfg.renamelimit;
350 opt.flags.recursive = 1;
352 DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
353 opt.format_callback = cgit_diff_tree_cb;
354 opt.format_callback_data = fn;
356 item.match = xstrdup(prefix);
357 item.len = strlen(prefix);
359 opt.pathspec.items = &item;
361 diff_setup_done(&opt);
363 if (old_oid && !is_null_oid(old_oid))
364 diff_tree_oid(old_oid, new_oid, "", &opt);
366 diff_root_tree_oid(new_oid, "", &opt);
373 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
375 const struct object_id *old_oid = NULL;
378 old_oid = &commit->parents->item->object.oid;
379 cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
383 int cgit_parse_snapshots_mask(const char *str)
385 struct string_list tokens = STRING_LIST_INIT_DUP;
386 struct string_list_item *item;
387 const struct cgit_snapshot_format *f;
390 /* favor legacy setting */
394 if (strcmp(str, "all") == 0)
397 string_list_split(&tokens, str, ' ', -1);
398 string_list_remove_empty_items(&tokens, 0);
400 for_each_string_list_item(item, &tokens) {
401 for (f = cgit_snapshot_formats; f->suffix; f++) {
402 if (!strcmp(item->string, f->suffix) ||
403 !strcmp(item->string, f->suffix + 1)) {
404 rv |= cgit_snapshot_format_bit(f);
410 string_list_clear(&tokens, 0);
419 void cgit_prepare_repo_env(struct cgit_repo * repo)
421 cgit_env_var env_vars[] = {
422 { .name = "CGIT_REPO_URL", .value = repo->url },
423 { .name = "CGIT_REPO_NAME", .value = repo->name },
424 { .name = "CGIT_REPO_PATH", .value = repo->path },
425 { .name = "CGIT_REPO_OWNER", .value = repo->owner },
426 { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
427 { .name = "CGIT_REPO_SECTION", .value = repo->section },
428 { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
430 int env_var_count = ARRAY_SIZE(env_vars);
432 static char *warn = "cgit warning: failed to set env: %s=%s\n";
435 q = p + env_var_count;
437 if (p->value && setenv(p->name, p->value, 1))
438 fprintf(stderr, warn, p->name, p->value);
441 /* Read the content of the specified file into a newly allocated buffer,
442 * zeroterminate the buffer and return 0 on success, errno otherwise.
444 int readfile(const char *path, char **buf, size_t *size)
449 fd = open(path, O_RDONLY);
452 if (fstat(fd, &st)) {
457 if (!S_ISREG(st.st_mode)) {
461 *buf = xmalloc(st.st_size + 1);
462 *size = read_in_full(fd, *buf, st.st_size);
464 (*buf)[*size] = '\0';
466 return (*size == st.st_size ? 0 : e);
469 static int is_token_char(char c)
471 return isalnum(c) || c == '_';
474 /* Replace name with getenv(name), return pointer to zero-terminating char
476 static char *expand_macro(char *name, int maxlength)
482 value = getenv(name);
487 strncpy(name, value, len);
492 #define EXPBUFSIZE (1024 * 8)
494 /* Replace all tokens prefixed by '$' in the specified text with the
495 * value of the named environment variable.
496 * NB: the return value is a static buffer, i.e. it must be strdup'd
499 char *expand_macros(const char *txt)
501 static char result[EXPBUFSIZE];
507 while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
510 if (!is_token_char(*txt)) {
513 len = result + EXPBUFSIZE - start - 1;
514 p = expand_macro(start, len) - 1;
532 if (start && p - start > 0) {
533 len = result + EXPBUFSIZE - start - 1;
534 p = expand_macro(start, len);
540 char *get_mimetype_for_filename(const char *filename)
542 char *ext, *mimetype, *token, line[1024], *saveptr;
544 struct string_list_item *mime;
549 ext = strrchr(filename, '.');
555 mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
557 return xstrdup(mime->util);
559 if (!ctx.cfg.mimetype_file)
561 file = fopen(ctx.cfg.mimetype_file, "r");
564 while (fgets(line, sizeof(line), file)) {
565 if (!line[0] || line[0] == '#')
567 mimetype = strtok_r(line, " \t\r\n", &saveptr);
568 while ((token = strtok_r(NULL, " \t\r\n", &saveptr))) {
569 if (!strcasecmp(ext, token)) {
571 return xstrdup(mimetype);