mirror of
https://git.zx2c4.com/cgit/
synced 2024-11-18 09:25:33 +00:00
345 lines
7.3 KiB
C
345 lines
7.3 KiB
C
/* shared.c: global vars + some callback functions
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*
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* Copyright (C) 2006 Lars Hjemli
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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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#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 cgit_cmd;
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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("%s: %s", msg, strerror(errno));
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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("%s: %s", msg, strerror(errno));
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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("%s: %s",msg, strerror(errno));
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return result;
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}
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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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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 = "[no description]";
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ret->owner = NULL;
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ret->group = ctx.cfg.repo_group;
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ret->defbranch = "master";
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ret->snapshots = ctx.cfg.snapshots;
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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->module_link = ctx.cfg.module_link;
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ret->readme = NULL;
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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 (!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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return NULL;
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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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char *s, *t;
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if (str == NULL)
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return NULL;
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t = (char *)str;
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len = strlen(t);
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while(len > 0 && t[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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c = t[len];
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t[len] = '\0';
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s = xstrdup(t);
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t[len] = c;
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return s;
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}
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char *strlpart(char *txt, int maxlen)
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{
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char *result;
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if (!txt)
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return txt;
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if (strlen(txt) <= maxlen)
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return txt;
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result = xmalloc(maxlen + 1);
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memcpy(result, txt, maxlen - 3);
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result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
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result[maxlen] = '\0';
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return result;
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}
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char *strrpart(char *txt, int maxlen)
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{
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char *result;
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if (!txt)
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return txt;
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if (strlen(txt) <= maxlen)
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return txt;
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result = xmalloc(maxlen + 1);
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memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3);
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result[0] = result[1] = result[2] = '.';
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return result;
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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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struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
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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(sha1);
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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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int cgit_refs_cb(const char *refname, const unsigned char *sha1, 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, sha1);
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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 unsigned char *sha1)
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{
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enum object_type type;
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if (is_null_sha1(sha1)) {
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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 = read_sha1_file(sha1, &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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char *diffbuf = NULL;
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int buflen = 0;
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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 unsigned char *old_sha1,
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const unsigned char *new_sha1,
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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_sha1) || !load_mmfile(&file2, new_sha1))
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return 1;
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diff_params.flags = XDF_NEED_MINIMAL;
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emit_params.ctxlen = 3;
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emit_params.flags = XDL_EMIT_FUNCNAMES;
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emit_params.find_func = NULL;
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emit_cb.outf = 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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return 0;
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}
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void cgit_diff_tree(const unsigned char *old_sha1,
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const unsigned char *new_sha1,
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filepair_fn fn, const char *prefix)
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{
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struct diff_options opt;
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int ret;
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int prefixlen;
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diff_setup(&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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DIFF_OPT_SET(&opt, RECURSIVE);
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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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opt.nr_paths = 1;
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opt.paths = &prefix;
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prefixlen = strlen(prefix);
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opt.pathlens = &prefixlen;
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}
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diff_setup_done(&opt);
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if (old_sha1 && !is_null_sha1(old_sha1))
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ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
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else
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ret = diff_root_tree_sha1(new_sha1, "", &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)
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{
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unsigned char *old_sha1 = NULL;
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if (commit->parents)
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old_sha1 = commit->parents->item->object.sha1;
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cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
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}
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int cgit_parse_snapshots_mask(const char *str)
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{
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const struct cgit_snapshot_format *f;
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static const char *delim = " \t,:/|;";
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int tl, sl, 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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for(;;) {
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str += strspn(str,delim);
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tl = strcspn(str,delim);
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if (!tl)
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break;
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for (f = cgit_snapshot_formats; f->suffix; f++) {
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sl = strlen(f->suffix);
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if((tl == sl && !strncmp(f->suffix, str, tl)) ||
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(tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
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rv |= f->bit;
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break;
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}
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}
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str += tl;
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}
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return rv;
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}
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