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;
58 ret->section = ctx.cfg.section;
59 ret->snapshots = ctx.cfg.snapshots;
60 ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
61 ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
62 ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
63 ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
64 ret->enable_subject_links = ctx.cfg.enable_subject_links;
65 ret->enable_html_serving = ctx.cfg.enable_html_serving;
66 ret->max_stats = ctx.cfg.max_stats;
67 ret->branch_sort = ctx.cfg.branch_sort;
68 ret->commit_sort = ctx.cfg.commit_sort;
69 ret->module_link = ctx.cfg.module_link;
70 ret->readme = ctx.cfg.readme;
72 ret->about_filter = ctx.cfg.about_filter;
73 ret->commit_filter = ctx.cfg.commit_filter;
74 ret->source_filter = ctx.cfg.source_filter;
75 ret->email_filter = ctx.cfg.email_filter;
76 ret->owner_filter = ctx.cfg.owner_filter;
77 ret->clone_url = ctx.cfg.clone_url;
78 ret->submodules.strdup_strings = 1;
79 ret->hide = ret->ignore = 0;
83 struct cgit_repo *cgit_get_repoinfo(const char *url)
86 struct cgit_repo *repo;
88 for (i = 0; i < cgit_repolist.count; i++) {
89 repo = &cgit_repolist.repos[i];
92 if (!strcmp(repo->url, url))
98 void *cgit_free_commitinfo(struct commitinfo *info)
101 free(info->author_email);
102 free(info->committer);
103 free(info->committer_email);
106 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 char *strlpart(char *txt, int maxlen)
153 if (strlen(txt) <= maxlen)
155 result = xmalloc(maxlen + 1);
156 memcpy(result, txt, maxlen - 3);
157 result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
158 result[maxlen] = '\0';
162 char *strrpart(char *txt, int maxlen)
169 if (strlen(txt) <= maxlen)
171 result = xmalloc(maxlen + 1);
172 memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3);
173 result[0] = result[1] = result[2] = '.';
177 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
181 if (list->count >= list->alloc) {
182 list->alloc += (list->alloc ? list->alloc : 4);
183 size = list->alloc * sizeof(struct refinfo *);
184 list->refs = xrealloc(list->refs, size);
186 list->refs[list->count++] = ref;
189 static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
193 ref = xmalloc(sizeof (struct refinfo));
194 ref->refname = xstrdup(refname);
195 ref->object = parse_object(oid->hash);
196 switch (ref->object->type) {
198 ref->tag = cgit_parse_tag((struct tag *)ref->object);
201 ref->commit = cgit_parse_commit((struct commit *)ref->object);
207 static void cgit_free_taginfo(struct taginfo *tag)
211 if (tag->tagger_email)
212 free(tag->tagger_email);
218 static void cgit_free_refinfo(struct refinfo *ref)
221 free((char *)ref->refname);
222 switch (ref->object->type) {
224 cgit_free_taginfo(ref->tag);
227 cgit_free_commitinfo(ref->commit);
233 void cgit_free_reflist_inner(struct reflist *list)
237 for (i = 0; i < list->count; i++) {
238 cgit_free_refinfo(list->refs[i]);
243 int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
246 struct reflist *list = (struct reflist *)cb_data;
247 struct refinfo *info = cgit_mk_refinfo(refname, oid);
250 cgit_add_ref(list, info);
254 void cgit_diff_tree_cb(struct diff_queue_struct *q,
255 struct diff_options *options, void *data)
259 for (i = 0; i < q->nr; i++) {
260 if (q->queue[i]->status == 'U')
262 ((filepair_fn)data)(q->queue[i]);
266 static int load_mmfile(mmfile_t *file, const struct object_id *oid)
268 enum object_type type;
270 if (is_null_oid(oid)) {
271 file->ptr = (char *)"";
274 file->ptr = read_sha1_file(oid->hash, &type,
275 (unsigned long *)&file->size);
281 * Receive diff-buffers from xdiff and concatenate them as
282 * needed across multiple callbacks.
284 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
285 * ripped from git and modified to use globals instead of
286 * a special callback-struct.
288 static char *diffbuf = NULL;
289 static int buflen = 0;
291 static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
295 for (i = 0; i < nbuf; i++) {
296 if (mb[i].ptr[mb[i].size-1] != '\n') {
297 /* Incomplete line */
298 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
299 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
300 buflen += mb[i].size;
304 /* we have a complete line */
306 ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
309 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
310 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
311 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
317 ((linediff_fn)priv)(diffbuf, buflen);
325 int cgit_diff_files(const struct object_id *old_oid,
326 const struct object_id *new_oid, unsigned long *old_size,
327 unsigned long *new_size, int *binary, int context,
328 int ignorews, linediff_fn fn)
330 mmfile_t file1, file2;
331 xpparam_t diff_params;
332 xdemitconf_t emit_params;
335 if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
338 *old_size = file1.size;
339 *new_size = file2.size;
341 if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
342 (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
351 memset(&diff_params, 0, sizeof(diff_params));
352 memset(&emit_params, 0, sizeof(emit_params));
353 memset(&emit_cb, 0, sizeof(emit_cb));
354 diff_params.flags = XDF_NEED_MINIMAL;
356 diff_params.flags |= XDF_IGNORE_WHITESPACE;
357 emit_params.ctxlen = context > 0 ? context : 3;
358 emit_params.flags = XDL_EMIT_FUNCNAMES;
359 emit_cb.outf = filediff_cb;
361 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
369 void cgit_diff_tree(const struct object_id *old_oid,
370 const struct object_id *new_oid,
371 filepair_fn fn, const char *prefix, int ignorews)
373 struct diff_options opt;
374 struct pathspec_item item;
376 memset(&item, 0, sizeof(item));
378 opt.output_format = DIFF_FORMAT_CALLBACK;
379 opt.detect_rename = 1;
380 opt.rename_limit = ctx.cfg.renamelimit;
381 DIFF_OPT_SET(&opt, RECURSIVE);
383 DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
384 opt.format_callback = cgit_diff_tree_cb;
385 opt.format_callback_data = fn;
388 item.len = strlen(prefix);
390 opt.pathspec.items = &item;
392 diff_setup_done(&opt);
394 if (old_oid && !is_null_oid(old_oid))
395 diff_tree_sha1(old_oid->hash, new_oid->hash, "", &opt);
397 diff_root_tree_sha1(new_oid->hash, "", &opt);
402 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
404 const struct object_id *old_oid = NULL;
407 old_oid = &commit->parents->item->object.oid;
408 cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
412 int cgit_parse_snapshots_mask(const char *str)
414 struct string_list tokens = STRING_LIST_INIT_DUP;
415 struct string_list_item *item;
416 const struct cgit_snapshot_format *f;
419 /* favor legacy setting */
423 string_list_split(&tokens, str, ' ', -1);
424 string_list_remove_empty_items(&tokens, 0);
426 for_each_string_list_item(item, &tokens) {
427 for (f = cgit_snapshot_formats; f->suffix; f++) {
428 if (!strcmp(item->string, f->suffix) ||
429 !strcmp(item->string, f->suffix + 1)) {
436 string_list_clear(&tokens, 0);
445 void cgit_prepare_repo_env(struct cgit_repo * repo)
447 cgit_env_var env_vars[] = {
448 { .name = "CGIT_REPO_URL", .value = repo->url },
449 { .name = "CGIT_REPO_NAME", .value = repo->name },
450 { .name = "CGIT_REPO_PATH", .value = repo->path },
451 { .name = "CGIT_REPO_OWNER", .value = repo->owner },
452 { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
453 { .name = "CGIT_REPO_SECTION", .value = repo->section },
454 { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
456 int env_var_count = ARRAY_SIZE(env_vars);
458 static char *warn = "cgit warning: failed to set env: %s=%s\n";
461 q = p + env_var_count;
463 if (p->value && setenv(p->name, p->value, 1))
464 fprintf(stderr, warn, p->name, p->value);
467 /* Read the content of the specified file into a newly allocated buffer,
468 * zeroterminate the buffer and return 0 on success, errno otherwise.
470 int readfile(const char *path, char **buf, size_t *size)
475 fd = open(path, O_RDONLY);
478 if (fstat(fd, &st)) {
483 if (!S_ISREG(st.st_mode)) {
487 *buf = xmalloc(st.st_size + 1);
488 *size = read_in_full(fd, *buf, st.st_size);
490 (*buf)[*size] = '\0';
492 return (*size == st.st_size ? 0 : e);
495 static int is_token_char(char c)
497 return isalnum(c) || c == '_';
500 /* Replace name with getenv(name), return pointer to zero-terminating char
502 static char *expand_macro(char *name, int maxlength)
508 value = getenv(name);
513 strncpy(name, value, len);
518 #define EXPBUFSIZE (1024 * 8)
520 /* Replace all tokens prefixed by '$' in the specified text with the
521 * value of the named environment variable.
522 * NB: the return value is a static buffer, i.e. it must be strdup'd
525 char *expand_macros(const char *txt)
527 static char result[EXPBUFSIZE];
533 while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
536 if (!is_token_char(*txt)) {
539 len = result + EXPBUFSIZE - start - 1;
540 p = expand_macro(start, len) - 1;
558 if (start && p - start > 0) {
559 len = result + EXPBUFSIZE - start - 1;
560 p = expand_macro(start, len);
566 char *get_mimetype_for_filename(const char *filename)
568 char *ext, *mimetype, *token, line[1024], *saveptr;
570 struct string_list_item *mime;
575 ext = strrchr(filename, '.');
581 mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
583 return xstrdup(mime->util);
585 if (!ctx.cfg.mimetype_file)
587 file = fopen(ctx.cfg.mimetype_file, "r");
590 while (fgets(line, sizeof(line), file)) {
591 if (!line[0] || line[0] == '#')
593 mimetype = strtok_r(line, " \t\r\n", &saveptr);
594 while ((token = strtok_r(NULL, " \t\r\n", &saveptr))) {
595 if (!strcasecmp(ext, token)) {
597 return xstrdup(mimetype);