mirror of
https://git.zx2c4.com/cgit
synced 2024-09-07 19:35:18 +00:00
Update to git version v2.46.0, this requires changes for these upstream commits: * e7da9385708accf518a80a1e17969020fb361048 global: introduce `USE_THE_REPOSITORY_VARIABLE` macro * 9da95bda74cf10e1475384a71fd20914c3b99784 hash: require hash algorithm in `oidread()` and `oidclr()` * 30aaff437fddd889ba429b50b96ea4c151c502c5 refs: pass repo when peeling objects * c8f815c2083c4b340d4148a15d45c55f2fcc7d3f refs: remove functions without ref store Signed-off-by: Christian Hesse <mail@eworm.de>
585 lines
13 KiB
C
585 lines
13 KiB
C
/* shared.c: global vars + some callback functions
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*
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* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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#define USE_THE_REPOSITORY_VARIABLE
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#include "cgit.h"
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struct cgit_repolist cgit_repolist;
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struct cgit_context ctx;
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int chk_zero(int result, char *msg)
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{
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if (result != 0)
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die_errno("%s", msg);
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return result;
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}
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int chk_positive(int result, char *msg)
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{
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if (result <= 0)
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die_errno("%s", msg);
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return result;
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}
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int chk_non_negative(int result, char *msg)
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{
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if (result < 0)
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die_errno("%s", msg);
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return result;
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}
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char *cgit_default_repo_desc = "[no description]";
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struct cgit_repo *cgit_add_repo(const char *url)
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{
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struct cgit_repo *ret;
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if (++cgit_repolist.count > cgit_repolist.length) {
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if (cgit_repolist.length == 0)
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cgit_repolist.length = 8;
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else
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cgit_repolist.length *= 2;
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cgit_repolist.repos = xrealloc(cgit_repolist.repos,
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cgit_repolist.length *
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sizeof(struct cgit_repo));
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}
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ret = &cgit_repolist.repos[cgit_repolist.count-1];
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memset(ret, 0, sizeof(struct cgit_repo));
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ret->url = trim_end(url, '/');
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ret->name = ret->url;
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ret->path = NULL;
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ret->desc = cgit_default_repo_desc;
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ret->extra_head_content = NULL;
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ret->owner = NULL;
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ret->homepage = NULL;
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ret->section = ctx.cfg.section;
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ret->snapshots = ctx.cfg.snapshots;
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ret->enable_blame = ctx.cfg.enable_blame;
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ret->enable_commit_graph = ctx.cfg.enable_commit_graph;
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ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
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ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
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ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
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ret->enable_subject_links = ctx.cfg.enable_subject_links;
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ret->enable_html_serving = ctx.cfg.enable_html_serving;
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ret->max_stats = ctx.cfg.max_stats;
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ret->branch_sort = ctx.cfg.branch_sort;
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ret->commit_sort = ctx.cfg.commit_sort;
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ret->module_link = ctx.cfg.module_link;
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ret->readme = ctx.cfg.readme;
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ret->mtime = -1;
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ret->about_filter = ctx.cfg.about_filter;
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ret->commit_filter = ctx.cfg.commit_filter;
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ret->source_filter = ctx.cfg.source_filter;
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ret->email_filter = ctx.cfg.email_filter;
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ret->owner_filter = ctx.cfg.owner_filter;
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ret->clone_url = ctx.cfg.clone_url;
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ret->submodules.strdup_strings = 1;
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ret->hide = ret->ignore = 0;
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return ret;
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}
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struct cgit_repo *cgit_get_repoinfo(const char *url)
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{
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int i;
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struct cgit_repo *repo;
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for (i = 0; i < cgit_repolist.count; i++) {
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repo = &cgit_repolist.repos[i];
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if (repo->ignore)
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continue;
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if (!strcmp(repo->url, url))
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return repo;
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}
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return NULL;
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}
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void cgit_free_commitinfo(struct commitinfo *info)
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{
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free(info->author);
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free(info->author_email);
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free(info->committer);
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free(info->committer_email);
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free(info->subject);
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free(info->msg);
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free(info->msg_encoding);
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free(info);
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}
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char *trim_end(const char *str, char c)
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{
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int len;
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if (str == NULL)
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return NULL;
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len = strlen(str);
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while (len > 0 && str[len - 1] == c)
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len--;
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if (len == 0)
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return NULL;
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return xstrndup(str, len);
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}
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char *ensure_end(const char *str, char c)
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{
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size_t len = strlen(str);
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char *result;
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if (len && str[len - 1] == c)
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return xstrndup(str, len);
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result = xmalloc(len + 2);
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memcpy(result, str, len);
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result[len] = '/';
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result[len + 1] = '\0';
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return result;
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}
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void strbuf_ensure_end(struct strbuf *sb, char c)
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{
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if (!sb->len || sb->buf[sb->len - 1] != c)
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strbuf_addch(sb, c);
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}
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void cgit_add_ref(struct reflist *list, struct refinfo *ref)
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{
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size_t size;
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if (list->count >= list->alloc) {
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list->alloc += (list->alloc ? list->alloc : 4);
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size = list->alloc * sizeof(struct refinfo *);
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list->refs = xrealloc(list->refs, size);
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}
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list->refs[list->count++] = ref;
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}
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static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)
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{
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struct refinfo *ref;
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ref = xmalloc(sizeof (struct refinfo));
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ref->refname = xstrdup(refname);
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ref->object = parse_object(the_repository, oid);
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switch (ref->object->type) {
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case OBJ_TAG:
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ref->tag = cgit_parse_tag((struct tag *)ref->object);
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break;
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case OBJ_COMMIT:
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ref->commit = cgit_parse_commit((struct commit *)ref->object);
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break;
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}
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return ref;
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}
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void cgit_free_taginfo(struct taginfo *tag)
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{
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if (tag->tagger)
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free(tag->tagger);
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if (tag->tagger_email)
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free(tag->tagger_email);
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if (tag->msg)
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free(tag->msg);
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free(tag);
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}
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static void cgit_free_refinfo(struct refinfo *ref)
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{
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if (ref->refname)
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free((char *)ref->refname);
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switch (ref->object->type) {
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case OBJ_TAG:
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cgit_free_taginfo(ref->tag);
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break;
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case OBJ_COMMIT:
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cgit_free_commitinfo(ref->commit);
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break;
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}
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free(ref);
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}
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void cgit_free_reflist_inner(struct reflist *list)
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{
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int i;
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for (i = 0; i < list->count; i++) {
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cgit_free_refinfo(list->refs[i]);
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}
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free(list->refs);
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}
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int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
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void *cb_data)
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{
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struct reflist *list = (struct reflist *)cb_data;
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struct refinfo *info = cgit_mk_refinfo(refname, oid);
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if (info)
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cgit_add_ref(list, info);
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return 0;
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}
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void cgit_diff_tree_cb(struct diff_queue_struct *q,
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struct diff_options *options, void *data)
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{
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int i;
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for (i = 0; i < q->nr; i++) {
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if (q->queue[i]->status == 'U')
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continue;
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((filepair_fn)data)(q->queue[i]);
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}
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}
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static int load_mmfile(mmfile_t *file, const struct object_id *oid)
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{
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enum object_type type;
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if (is_null_oid(oid)) {
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file->ptr = (char *)"";
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file->size = 0;
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} else {
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file->ptr = repo_read_object_file(the_repository, oid, &type,
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(unsigned long *)&file->size);
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}
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return 1;
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}
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/*
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* Receive diff-buffers from xdiff and concatenate them as
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* needed across multiple callbacks.
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*
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* This is basically a copy of xdiff-interface.c/xdiff_outf(),
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* ripped from git and modified to use globals instead of
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* a special callback-struct.
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*/
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static char *diffbuf = NULL;
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static int buflen = 0;
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static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
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{
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int i;
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for (i = 0; i < nbuf; i++) {
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if (mb[i].ptr[mb[i].size-1] != '\n') {
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/* Incomplete line */
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diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
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memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
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buflen += mb[i].size;
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continue;
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}
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/* we have a complete line */
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if (!diffbuf) {
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((linediff_fn)priv)(mb[i].ptr, mb[i].size);
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continue;
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}
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diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
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memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
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((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
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free(diffbuf);
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diffbuf = NULL;
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buflen = 0;
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}
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if (diffbuf) {
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((linediff_fn)priv)(diffbuf, buflen);
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free(diffbuf);
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diffbuf = NULL;
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buflen = 0;
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}
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return 0;
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}
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int cgit_diff_files(const struct object_id *old_oid,
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const struct object_id *new_oid, unsigned long *old_size,
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unsigned long *new_size, int *binary, int context,
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int ignorews, linediff_fn fn)
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{
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mmfile_t file1, file2;
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xpparam_t diff_params;
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xdemitconf_t emit_params;
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xdemitcb_t emit_cb;
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if (!load_mmfile(&file1, old_oid) || !load_mmfile(&file2, new_oid))
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return 1;
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*old_size = file1.size;
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*new_size = file2.size;
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if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
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(file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
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*binary = 1;
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if (file1.size)
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free(file1.ptr);
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if (file2.size)
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free(file2.ptr);
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return 0;
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}
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memset(&diff_params, 0, sizeof(diff_params));
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memset(&emit_params, 0, sizeof(emit_params));
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memset(&emit_cb, 0, sizeof(emit_cb));
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diff_params.flags = XDF_NEED_MINIMAL;
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if (ignorews)
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diff_params.flags |= XDF_IGNORE_WHITESPACE;
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emit_params.ctxlen = context > 0 ? context : 3;
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emit_params.flags = XDL_EMIT_FUNCNAMES;
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emit_cb.out_line = filediff_cb;
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emit_cb.priv = fn;
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xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
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if (file1.size)
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free(file1.ptr);
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if (file2.size)
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free(file2.ptr);
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return 0;
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}
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void cgit_diff_tree(const struct object_id *old_oid,
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const struct object_id *new_oid,
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filepair_fn fn, const char *prefix, int ignorews)
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{
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struct diff_options opt;
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struct pathspec_item *item;
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repo_diff_setup(the_repository, &opt);
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opt.output_format = DIFF_FORMAT_CALLBACK;
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opt.detect_rename = 1;
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opt.rename_limit = ctx.cfg.renamelimit;
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opt.flags.recursive = 1;
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if (ignorews)
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DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
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opt.format_callback = cgit_diff_tree_cb;
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opt.format_callback_data = fn;
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if (prefix) {
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item = xcalloc(1, sizeof(*item));
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item->match = xstrdup(prefix);
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item->len = strlen(prefix);
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opt.pathspec.nr = 1;
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opt.pathspec.items = item;
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}
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diff_setup_done(&opt);
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if (old_oid && !is_null_oid(old_oid))
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diff_tree_oid(old_oid, new_oid, "", &opt);
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else
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diff_root_tree_oid(new_oid, "", &opt);
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diffcore_std(&opt);
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diff_flush(&opt);
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}
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void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)
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{
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const struct object_id *old_oid = NULL;
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if (commit->parents)
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old_oid = &commit->parents->item->object.oid;
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cgit_diff_tree(old_oid, &commit->object.oid, fn, prefix,
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ctx.qry.ignorews);
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}
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int cgit_parse_snapshots_mask(const char *str)
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{
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struct string_list tokens = STRING_LIST_INIT_DUP;
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struct string_list_item *item;
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const struct cgit_snapshot_format *f;
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int rv = 0;
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/* favor legacy setting */
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if (atoi(str))
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return 1;
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if (strcmp(str, "all") == 0)
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return INT_MAX;
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string_list_split(&tokens, str, ' ', -1);
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string_list_remove_empty_items(&tokens, 0);
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for_each_string_list_item(item, &tokens) {
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for (f = cgit_snapshot_formats; f->suffix; f++) {
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if (!strcmp(item->string, f->suffix) ||
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!strcmp(item->string, f->suffix + 1)) {
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rv |= cgit_snapshot_format_bit(f);
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break;
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}
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}
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}
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string_list_clear(&tokens, 0);
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return rv;
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}
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typedef struct {
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char * name;
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char * value;
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} cgit_env_var;
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void cgit_prepare_repo_env(struct cgit_repo * repo)
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{
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cgit_env_var env_vars[] = {
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{ .name = "CGIT_REPO_URL", .value = repo->url },
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{ .name = "CGIT_REPO_NAME", .value = repo->name },
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{ .name = "CGIT_REPO_PATH", .value = repo->path },
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{ .name = "CGIT_REPO_OWNER", .value = repo->owner },
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{ .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
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{ .name = "CGIT_REPO_SECTION", .value = repo->section },
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{ .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
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};
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int env_var_count = ARRAY_SIZE(env_vars);
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cgit_env_var *p, *q;
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static char *warn = "cgit warning: failed to set env: %s=%s\n";
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p = env_vars;
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q = p + env_var_count;
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for (; p < q; p++)
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if (p->value && setenv(p->name, p->value, 1))
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fprintf(stderr, warn, p->name, p->value);
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}
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/* Read the content of the specified file into a newly allocated buffer,
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* zeroterminate the buffer and return 0 on success, errno otherwise.
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*/
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int readfile(const char *path, char **buf, size_t *size)
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{
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int fd, e;
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struct stat st;
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fd = open(path, O_RDONLY);
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if (fd == -1)
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return errno;
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if (fstat(fd, &st)) {
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e = errno;
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close(fd);
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return e;
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}
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if (!S_ISREG(st.st_mode)) {
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close(fd);
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return EISDIR;
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}
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*buf = xmalloc(st.st_size + 1);
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*size = read_in_full(fd, *buf, st.st_size);
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e = errno;
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(*buf)[*size] = '\0';
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close(fd);
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return (*size == st.st_size ? 0 : e);
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}
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static int is_token_char(char c)
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{
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return isalnum(c) || c == '_';
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}
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/* Replace name with getenv(name), return pointer to zero-terminating char
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*/
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static char *expand_macro(char *name, int maxlength)
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{
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char *value;
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size_t len;
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len = 0;
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value = getenv(name);
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if (value) {
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len = strlen(value) + 1;
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if (len > maxlength)
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len = maxlength;
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strlcpy(name, value, len);
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--len;
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}
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return name + len;
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}
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#define EXPBUFSIZE (1024 * 8)
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/* Replace all tokens prefixed by '$' in the specified text with the
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* value of the named environment variable.
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* NB: the return value is a static buffer, i.e. it must be strdup'd
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* by the caller.
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*/
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char *expand_macros(const char *txt)
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{
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static char result[EXPBUFSIZE];
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char *p, *start;
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int len;
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p = result;
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start = NULL;
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while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
|
|
*p = *txt;
|
|
if (start) {
|
|
if (!is_token_char(*txt)) {
|
|
if (p - start > 0) {
|
|
*p = '\0';
|
|
len = result + EXPBUFSIZE - start - 1;
|
|
p = expand_macro(start, len) - 1;
|
|
}
|
|
start = NULL;
|
|
txt--;
|
|
}
|
|
p++;
|
|
txt++;
|
|
continue;
|
|
}
|
|
if (*txt == '$') {
|
|
start = p;
|
|
txt++;
|
|
continue;
|
|
}
|
|
p++;
|
|
txt++;
|
|
}
|
|
*p = '\0';
|
|
if (start && p - start > 0) {
|
|
len = result + EXPBUFSIZE - start - 1;
|
|
p = expand_macro(start, len);
|
|
*p = '\0';
|
|
}
|
|
return result;
|
|
}
|
|
|
|
char *get_mimetype_for_filename(const char *filename)
|
|
{
|
|
char *ext, *mimetype, line[1024];
|
|
struct string_list list = STRING_LIST_INIT_NODUP;
|
|
int i;
|
|
FILE *file;
|
|
struct string_list_item *mime;
|
|
|
|
if (!filename)
|
|
return NULL;
|
|
|
|
ext = strrchr(filename, '.');
|
|
if (!ext)
|
|
return NULL;
|
|
++ext;
|
|
if (!ext[0])
|
|
return NULL;
|
|
mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
|
|
if (mime)
|
|
return xstrdup(mime->util);
|
|
|
|
if (!ctx.cfg.mimetype_file)
|
|
return NULL;
|
|
file = fopen(ctx.cfg.mimetype_file, "r");
|
|
if (!file)
|
|
return NULL;
|
|
while (fgets(line, sizeof(line), file)) {
|
|
if (!line[0] || line[0] == '#')
|
|
continue;
|
|
string_list_split_in_place(&list, line, " \t\r\n", -1);
|
|
string_list_remove_empty_items(&list, 0);
|
|
mimetype = list.items[0].string;
|
|
for (i = 1; i < list.nr; i++) {
|
|
if (!strcasecmp(ext, list.items[i].string)) {
|
|
fclose(file);
|
|
return xstrdup(mimetype);
|
|
}
|
|
}
|
|
string_list_clear(&list, 0);
|
|
}
|
|
fclose(file);
|
|
return NULL;
|
|
}
|