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);
110 char *trim_end(const char *str, char c)
117 while (len > 0 && str[len - 1] == c)
121 return xstrndup(str, len);
124 char *ensure_end(const char *str, char c)
126 size_t len = strlen(str);
129 if (len && str[len - 1] == c)
130 return xstrndup(str, len);
132 result = xmalloc(len + 2);
133 memcpy(result, str, len);
135 result[len + 1] = '\0';
139 void strbuf_ensure_end(struct strbuf *sb, char c)
141 if (!sb->len || sb->buf[sb->len - 1] != c)
145 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
149 if (list->count >= list->alloc) {
150 list->alloc += (list->alloc ? list->alloc : 4);
151 size = list->alloc * sizeof(struct refinfo *);
152 list->refs = xrealloc(list->refs, size);
154 list->refs[list->count++] = ref;
157 static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
161 ref = xmalloc(sizeof (struct refinfo));
162 ref->refname = xstrdup(refname);
163 ref->object = parse_object(oid);
164 switch (ref->object->type) {
166 ref->tag = cgit_parse_tag((struct tag *)ref->object);
169 ref->commit = cgit_parse_commit((struct commit *)ref->object);
175 void cgit_free_taginfo(struct taginfo *tag)
179 if (tag->tagger_email)
180 free(tag->tagger_email);
186 static void cgit_free_refinfo(struct refinfo *ref)
189 free((char *)ref->refname);
190 switch (ref->object->type) {
192 cgit_free_taginfo(ref->tag);
195 cgit_free_commitinfo(ref->commit);
201 void cgit_free_reflist_inner(struct reflist *list)
205 for (i = 0; i < list->count; i++) {
206 cgit_free_refinfo(list->refs[i]);
211 int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
214 struct reflist *list = (struct reflist *)cb_data;
215 struct refinfo *info = cgit_mk_refinfo(refname, oid);
218 cgit_add_ref(list, info);
222 void cgit_diff_tree_cb(struct diff_queue_struct *q,
223 struct diff_options *options, void *data)
227 for (i = 0; i < q->nr; i++) {
228 if (q->queue[i]->status == 'U')
230 ((filepair_fn)data)(q->queue[i]);
234 static int load_mmfile(mmfile_t *file, const struct object_id *oid)
236 enum object_type type;
238 if (is_null_oid(oid)) {
239 file->ptr = (char *)"";
242 file->ptr = read_object_file(oid, &type,
243 (unsigned long *)&file->size);
249 * Receive diff-buffers from xdiff and concatenate them as
250 * needed across multiple callbacks.
252 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
253 * ripped from git and modified to use globals instead of
254 * a special callback-struct.
256 static char *diffbuf = NULL;
257 static int buflen = 0;
259 static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
263 for (i = 0; i < nbuf; i++) {
264 if (mb[i].ptr[mb[i].size-1] != '\n') {
265 /* Incomplete line */
266 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
267 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
268 buflen += mb[i].size;
272 /* we have a complete line */
274 ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
277 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
278 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
279 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
285 ((linediff_fn)priv)(diffbuf, buflen);
293 int cgit_diff_files(const struct object_id *old_oid,
294 const struct object_id *new_oid, unsigned long *old_size,
295 unsigned long *new_size, int *binary, int context,
296 int ignorews, linediff_fn fn)
298 mmfile_t file1, file2;
299 xpparam_t diff_params;
300 xdemitconf_t emit_params;
303 if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
306 *old_size = file1.size;
307 *new_size = file2.size;
309 if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
310 (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
319 memset(&diff_params, 0, sizeof(diff_params));
320 memset(&emit_params, 0, sizeof(emit_params));
321 memset(&emit_cb, 0, sizeof(emit_cb));
322 diff_params.flags = XDF_NEED_MINIMAL;
324 diff_params.flags |= XDF_IGNORE_WHITESPACE;
325 emit_params.ctxlen = context > 0 ? context : 3;
326 emit_params.flags = XDL_EMIT_FUNCNAMES;
327 emit_cb.outf = filediff_cb;
329 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
337 void cgit_diff_tree(const struct object_id *old_oid,
338 const struct object_id *new_oid,
339 filepair_fn fn, const char *prefix, int ignorews)
341 struct diff_options opt;
342 struct pathspec_item item;
344 memset(&item, 0, sizeof(item));
346 opt.output_format = DIFF_FORMAT_CALLBACK;
347 opt.detect_rename = 1;
348 opt.rename_limit = ctx.cfg.renamelimit;
349 opt.flags.recursive = 1;
351 DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
352 opt.format_callback = cgit_diff_tree_cb;
353 opt.format_callback_data = fn;
355 item.match = xstrdup(prefix);
356 item.len = strlen(prefix);
358 opt.pathspec.items = &item;
360 diff_setup_done(&opt);
362 if (old_oid && !is_null_oid(old_oid))
363 diff_tree_oid(old_oid, new_oid, "", &opt);
365 diff_root_tree_oid(new_oid, "", &opt);
372 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
374 const struct object_id *old_oid = NULL;
377 old_oid = &commit->parents->item->object.oid;
378 cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
382 int cgit_parse_snapshots_mask(const char *str)
384 struct string_list tokens = STRING_LIST_INIT_DUP;
385 struct string_list_item *item;
386 const struct cgit_snapshot_format *f;
389 /* favor legacy setting */
393 if (strcmp(str, "all") == 0)
396 string_list_split(&tokens, str, ' ', -1);
397 string_list_remove_empty_items(&tokens, 0);
399 for_each_string_list_item(item, &tokens) {
400 for (f = cgit_snapshot_formats; f->suffix; f++) {
401 if (!strcmp(item->string, f->suffix) ||
402 !strcmp(item->string, f->suffix + 1)) {
403 rv |= cgit_snapshot_format_bit(f);
409 string_list_clear(&tokens, 0);
418 void cgit_prepare_repo_env(struct cgit_repo * repo)
420 cgit_env_var env_vars[] = {
421 { .name = "CGIT_REPO_URL", .value = repo->url },
422 { .name = "CGIT_REPO_NAME", .value = repo->name },
423 { .name = "CGIT_REPO_PATH", .value = repo->path },
424 { .name = "CGIT_REPO_OWNER", .value = repo->owner },
425 { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
426 { .name = "CGIT_REPO_SECTION", .value = repo->section },
427 { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
429 int env_var_count = ARRAY_SIZE(env_vars);
431 static char *warn = "cgit warning: failed to set env: %s=%s\n";
434 q = p + env_var_count;
436 if (p->value && setenv(p->name, p->value, 1))
437 fprintf(stderr, warn, p->name, p->value);
440 /* Read the content of the specified file into a newly allocated buffer,
441 * zeroterminate the buffer and return 0 on success, errno otherwise.
443 int readfile(const char *path, char **buf, size_t *size)
448 fd = open(path, O_RDONLY);
451 if (fstat(fd, &st)) {
456 if (!S_ISREG(st.st_mode)) {
460 *buf = xmalloc(st.st_size + 1);
461 *size = read_in_full(fd, *buf, st.st_size);
463 (*buf)[*size] = '\0';
465 return (*size == st.st_size ? 0 : e);
468 static int is_token_char(char c)
470 return isalnum(c) || c == '_';
473 /* Replace name with getenv(name), return pointer to zero-terminating char
475 static char *expand_macro(char *name, int maxlength)
481 value = getenv(name);
486 strncpy(name, value, len);
491 #define EXPBUFSIZE (1024 * 8)
493 /* Replace all tokens prefixed by '$' in the specified text with the
494 * value of the named environment variable.
495 * NB: the return value is a static buffer, i.e. it must be strdup'd
498 char *expand_macros(const char *txt)
500 static char result[EXPBUFSIZE];
506 while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
509 if (!is_token_char(*txt)) {
512 len = result + EXPBUFSIZE - start - 1;
513 p = expand_macro(start, len) - 1;
531 if (start && p - start > 0) {
532 len = result + EXPBUFSIZE - start - 1;
533 p = expand_macro(start, len);
539 char *get_mimetype_for_filename(const char *filename)
541 char *ext, *mimetype, *token, line[1024], *saveptr;
543 struct string_list_item *mime;
548 ext = strrchr(filename, '.');
554 mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
556 return xstrdup(mime->util);
558 if (!ctx.cfg.mimetype_file)
560 file = fopen(ctx.cfg.mimetype_file, "r");
563 while (fgets(line, sizeof(line), file)) {
564 if (!line[0] || line[0] == '#')
566 mimetype = strtok_r(line, " \t\r\n", &saveptr);
567 while ((token = strtok_r(NULL, " \t\r\n", &saveptr))) {
568 if (!strcasecmp(ext, token)) {
570 return xstrdup(mimetype);