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 char *strlpart(char *txt, int maxlen)
152 if (strlen(txt) <= maxlen)
154 result = xmalloc(maxlen + 1);
155 memcpy(result, txt, maxlen - 3);
156 result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
157 result[maxlen] = '\0';
161 void cgit_add_ref(struct reflist *list, struct refinfo *ref)
165 if (list->count >= list->alloc) {
166 list->alloc += (list->alloc ? list->alloc : 4);
167 size = list->alloc * sizeof(struct refinfo *);
168 list->refs = xrealloc(list->refs, size);
170 list->refs[list->count++] = ref;
173 static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
177 ref = xmalloc(sizeof (struct refinfo));
178 ref->refname = xstrdup(refname);
179 ref->object = parse_object(oid->hash);
180 switch (ref->object->type) {
182 ref->tag = cgit_parse_tag((struct tag *)ref->object);
185 ref->commit = cgit_parse_commit((struct commit *)ref->object);
191 void cgit_free_taginfo(struct taginfo *tag)
195 if (tag->tagger_email)
196 free(tag->tagger_email);
202 static void cgit_free_refinfo(struct refinfo *ref)
205 free((char *)ref->refname);
206 switch (ref->object->type) {
208 cgit_free_taginfo(ref->tag);
211 cgit_free_commitinfo(ref->commit);
217 void cgit_free_reflist_inner(struct reflist *list)
221 for (i = 0; i < list->count; i++) {
222 cgit_free_refinfo(list->refs[i]);
227 int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
230 struct reflist *list = (struct reflist *)cb_data;
231 struct refinfo *info = cgit_mk_refinfo(refname, oid);
234 cgit_add_ref(list, info);
238 void cgit_diff_tree_cb(struct diff_queue_struct *q,
239 struct diff_options *options, void *data)
243 for (i = 0; i < q->nr; i++) {
244 if (q->queue[i]->status == 'U')
246 ((filepair_fn)data)(q->queue[i]);
250 static int load_mmfile(mmfile_t *file, const struct object_id *oid)
252 enum object_type type;
254 if (is_null_oid(oid)) {
255 file->ptr = (char *)"";
258 file->ptr = read_sha1_file(oid->hash, &type,
259 (unsigned long *)&file->size);
265 * Receive diff-buffers from xdiff and concatenate them as
266 * needed across multiple callbacks.
268 * This is basically a copy of xdiff-interface.c/xdiff_outf(),
269 * ripped from git and modified to use globals instead of
270 * a special callback-struct.
272 static char *diffbuf = NULL;
273 static int buflen = 0;
275 static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
279 for (i = 0; i < nbuf; i++) {
280 if (mb[i].ptr[mb[i].size-1] != '\n') {
281 /* Incomplete line */
282 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
283 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
284 buflen += mb[i].size;
288 /* we have a complete line */
290 ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
293 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
294 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
295 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
301 ((linediff_fn)priv)(diffbuf, buflen);
309 int cgit_diff_files(const struct object_id *old_oid,
310 const struct object_id *new_oid, unsigned long *old_size,
311 unsigned long *new_size, int *binary, int context,
312 int ignorews, linediff_fn fn)
314 mmfile_t file1, file2;
315 xpparam_t diff_params;
316 xdemitconf_t emit_params;
319 if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
322 *old_size = file1.size;
323 *new_size = file2.size;
325 if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
326 (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
335 memset(&diff_params, 0, sizeof(diff_params));
336 memset(&emit_params, 0, sizeof(emit_params));
337 memset(&emit_cb, 0, sizeof(emit_cb));
338 diff_params.flags = XDF_NEED_MINIMAL;
340 diff_params.flags |= XDF_IGNORE_WHITESPACE;
341 emit_params.ctxlen = context > 0 ? context : 3;
342 emit_params.flags = XDL_EMIT_FUNCNAMES;
343 emit_cb.outf = filediff_cb;
345 xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
353 void cgit_diff_tree(const struct object_id *old_oid,
354 const struct object_id *new_oid,
355 filepair_fn fn, const char *prefix, int ignorews)
357 struct diff_options opt;
358 struct pathspec_item item;
360 memset(&item, 0, sizeof(item));
362 opt.output_format = DIFF_FORMAT_CALLBACK;
363 opt.detect_rename = 1;
364 opt.rename_limit = ctx.cfg.renamelimit;
365 DIFF_OPT_SET(&opt, RECURSIVE);
367 DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
368 opt.format_callback = cgit_diff_tree_cb;
369 opt.format_callback_data = fn;
372 item.len = strlen(prefix);
374 opt.pathspec.items = &item;
376 diff_setup_done(&opt);
378 if (old_oid && !is_null_oid(old_oid))
379 diff_tree_sha1(old_oid->hash, new_oid->hash, "", &opt);
381 diff_root_tree_sha1(new_oid->hash, "", &opt);
386 void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
388 const struct object_id *old_oid = NULL;
391 old_oid = &commit->parents->item->object.oid;
392 cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
396 int cgit_parse_snapshots_mask(const char *str)
398 struct string_list tokens = STRING_LIST_INIT_DUP;
399 struct string_list_item *item;
400 const struct cgit_snapshot_format *f;
403 /* favor legacy setting */
407 string_list_split(&tokens, str, ' ', -1);
408 string_list_remove_empty_items(&tokens, 0);
410 for_each_string_list_item(item, &tokens) {
411 for (f = cgit_snapshot_formats; f->suffix; f++) {
412 if (!strcmp(item->string, f->suffix) ||
413 !strcmp(item->string, f->suffix + 1)) {
420 string_list_clear(&tokens, 0);
429 void cgit_prepare_repo_env(struct cgit_repo * repo)
431 cgit_env_var env_vars[] = {
432 { .name = "CGIT_REPO_URL", .value = repo->url },
433 { .name = "CGIT_REPO_NAME", .value = repo->name },
434 { .name = "CGIT_REPO_PATH", .value = repo->path },
435 { .name = "CGIT_REPO_OWNER", .value = repo->owner },
436 { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
437 { .name = "CGIT_REPO_SECTION", .value = repo->section },
438 { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
440 int env_var_count = ARRAY_SIZE(env_vars);
442 static char *warn = "cgit warning: failed to set env: %s=%s\n";
445 q = p + env_var_count;
447 if (p->value && setenv(p->name, p->value, 1))
448 fprintf(stderr, warn, p->name, p->value);
451 /* Read the content of the specified file into a newly allocated buffer,
452 * zeroterminate the buffer and return 0 on success, errno otherwise.
454 int readfile(const char *path, char **buf, size_t *size)
459 fd = open(path, O_RDONLY);
462 if (fstat(fd, &st)) {
467 if (!S_ISREG(st.st_mode)) {
471 *buf = xmalloc(st.st_size + 1);
472 *size = read_in_full(fd, *buf, st.st_size);
474 (*buf)[*size] = '\0';
476 return (*size == st.st_size ? 0 : e);
479 static int is_token_char(char c)
481 return isalnum(c) || c == '_';
484 /* Replace name with getenv(name), return pointer to zero-terminating char
486 static char *expand_macro(char *name, int maxlength)
492 value = getenv(name);
497 strncpy(name, value, len);
502 #define EXPBUFSIZE (1024 * 8)
504 /* Replace all tokens prefixed by '$' in the specified text with the
505 * value of the named environment variable.
506 * NB: the return value is a static buffer, i.e. it must be strdup'd
509 char *expand_macros(const char *txt)
511 static char result[EXPBUFSIZE];
517 while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
520 if (!is_token_char(*txt)) {
523 len = result + EXPBUFSIZE - start - 1;
524 p = expand_macro(start, len) - 1;
542 if (start && p - start > 0) {
543 len = result + EXPBUFSIZE - start - 1;
544 p = expand_macro(start, len);
550 char *get_mimetype_for_filename(const char *filename)
552 char *ext, *mimetype, *token, line[1024], *saveptr;
554 struct string_list_item *mime;
559 ext = strrchr(filename, '.');
565 mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
567 return xstrdup(mime->util);
569 if (!ctx.cfg.mimetype_file)
571 file = fopen(ctx.cfg.mimetype_file, "r");
574 while (fgets(line, sizeof(line), file)) {
575 if (!line[0] || line[0] == '#')
577 mimetype = strtok_r(line, " \t\r\n", &saveptr);
578 while ((token = strtok_r(NULL, " \t\r\n", &saveptr))) {
579 if (!strcasecmp(ext, token)) {
581 return xstrdup(mimetype);