/* shared.c: global vars + some callback functions
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
struct cgit_repolist cgit_repolist;
struct cgit_context ctx;
int cgit_cmd;
int chk_zero(int result, char *msg)
{
if (result != 0)
die("%s: %s", msg, strerror(errno));
return result;
}
int chk_positive(int result, char *msg)
{
if (result <= 0)
die("%s: %s", msg, strerror(errno));
return result;
}
int chk_non_negative(int result, char *msg)
{
if (result < 0)
die("%s: %s",msg, strerror(errno));
return result;
}
struct cgit_repo *cgit_add_repo(const char *url)
{
struct cgit_repo *ret;
if (++cgit_repolist.count > cgit_repolist.length) {
if (cgit_repolist.length == 0)
cgit_repolist.length = 8;
else
cgit_repolist.length *= 2;
cgit_repolist.repos = xrealloc(cgit_repolist.repos,
cgit_repolist.length *
sizeof(struct cgit_repo));
}
ret = &cgit_repolist.repos[cgit_repolist.count-1];
ret->url = trim_end(url, '/');
ret->name = ret->url;
ret->path = NULL;
ret->desc = "[no description]";
ret->owner = NULL;
ret->group = ctx.cfg.repo_group;
ret->defbranch = "master";
ret->snapshots = ctx.cfg.snapshots;
ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
ret->module_link = ctx.cfg.module_link;
ret->readme = NULL;
return ret;
}
struct cgit_repo *cgit_get_repoinfo(const char *url)
{
int i;
struct cgit_repo *repo;
for (i=0; i<cgit_repolist.count; i++) {
repo = &cgit_repolist.repos[i];
if (!strcmp(repo->url, url))
return repo;
}
return NULL;
}
void *cgit_free_commitinfo(struct commitinfo *info)
{
free(info->author);
free(info->author_email);
free(info->committer);
free(info->committer_email);
free(info->subject);
free(info->msg);
free(info->msg_encoding);
free(info);
return NULL;
}
char *trim_end(const char *str, char c)
{
int len;
char *s, *t;
if (str == NULL)
return NULL;
t = (char *)str;
len = strlen(t);
while(len > 0 && t[len - 1] == c)
len--;
if (len == 0)
return NULL;
c = t[len];
t[len] = '\0';
s = xstrdup(t);
t[len] = c;
return s;
}
char *strlpart(char *txt, int maxlen)
{
char *result;
if (!txt)
return txt;
if (strlen(txt) <= maxlen)
return txt;
result = xmalloc(maxlen + 1);
memcpy(result, txt, maxlen - 3);
result[maxlen-1] = result[maxlen-2] = result[maxlen-3] = '.';
result[maxlen] = '\0';
return result;
}
char *strrpart(char *txt, int maxlen)
{
char *result;
if (!txt)
return txt;
if (strlen(txt) <= maxlen)
return txt;
result = xmalloc(maxlen + 1);
memcpy(result + 3, txt + strlen(txt) - maxlen + 4, maxlen - 3);
result[0] = result[1] = result[2] = '.';
return result;
}
void cgit_add_ref(struct reflist *list, struct refinfo *ref)
{
size_t size;
if (list->count >= list->alloc) {
list->alloc += (list->alloc ? list->alloc : 4);
size = list->alloc * sizeof(struct refinfo *);
list->refs = xrealloc(list->refs, size);
}
list->refs[list->count++] = ref;
}
struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
{
struct refinfo *ref;
ref = xmalloc(sizeof (struct refinfo));
ref->refname = xstrdup(refname);
ref->object = parse_object(sha1);
switch (ref->object->type) {
case OBJ_TAG:
ref->tag = cgit_parse_tag((struct tag *)ref->object);
break;
case OBJ_COMMIT:
ref->commit = cgit_parse_commit((struct commit *)ref->object);
break;
}
return ref;
}
int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags,
void *cb_data)
{
struct reflist *list = (struct reflist *)cb_data;
struct refinfo *info = cgit_mk_refinfo(refname, sha1);
if (info)
cgit_add_ref(list, info);
return 0;
}
void cgit_diff_tree_cb(struct diff_queue_struct *q,
struct diff_options *options, void *data)
{
int i;
for (i = 0; i < q->nr; i++) {
if (q->queue[i]->status == 'U')
continue;
((filepair_fn)data)(q->queue[i]);
}
}
static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
{
enum object_type type;
if (is_null_sha1(sha1)) {
file->ptr = (char *)"";
file->size = 0;
} else {
file->ptr = read_sha1_file(sha1, &type,
(unsigned long *)&file->size);
}
return 1;
}
/*
* Receive diff-buffers from xdiff and concatenate them as
* needed across multiple callbacks.
*
* This is basically a copy of xdiff-interface.c/xdiff_outf(),
* ripped from git and modified to use globals instead of
* a special callback-struct.
*/
char *diffbuf = NULL;
int buflen = 0;
int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
{
int i;
for (i = 0; i < nbuf; i++) {
if (mb[i].ptr[mb[i].size-1] != '\n') {
/* Incomplete line */
diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
buflen += mb[i].size;
continue;
}
/* we have a complete line */
if (!diffbuf) {
((linediff_fn)priv)(mb[i].ptr, mb[i].size);
continue;
}
diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
free(diffbuf);
diffbuf = NULL;
buflen = 0;
}
if (diffbuf) {
((linediff_fn)priv)(diffbuf, buflen);
free(diffbuf);
diffbuf = NULL;
buflen = 0;
}
return 0;
}
int cgit_diff_files(const unsigned char *old_sha1,
const unsigned char *new_sha1,
linediff_fn fn)
{
mmfile_t file1, file2;
xpparam_t diff_params;
xdemitconf_t emit_params;
xdemitcb_t emit_cb;
if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1))
return 1;
diff_params.flags = XDF_NEED_MINIMAL;
emit_params.ctxlen = 3;
emit_params.flags = XDL_EMIT_FUNCNAMES;
emit_params.find_func = NULL;
emit_cb.outf = filediff_cb;
emit_cb.priv = fn;
xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
return 0;
}
void cgit_diff_tree(const unsigned char *old_sha1,
const unsigned char *new_sha1,
filepair_fn fn, const char *prefix)
{
struct diff_options opt;
int ret;
int prefixlen;
diff_setup(&opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.detect_rename = 1;
opt.rename_limit = ctx.cfg.renamelimit;
DIFF_OPT_SET(&opt, RECURSIVE);
opt.format_callback = cgit_diff_tree_cb;
opt.format_callback_data = fn;
if (prefix) {
opt.nr_paths = 1;
opt.paths = &prefix;
prefixlen = strlen(prefix);
opt.pathlens = &prefixlen;
}
diff_setup_done(&opt);
if (old_sha1 && !is_null_sha1(old_sha1))
ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
else
ret = diff_root_tree_sha1(new_sha1, "", &opt);
diffcore_std(&opt);
diff_flush(&opt);
}
void cgit_diff_commit(struct commit *commit, filepair_fn fn)
{
unsigned char *old_sha1 = NULL;
if (commit->parents)
old_sha1 = commit->parents->item->object.sha1;
cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
}
int cgit_parse_snapshots_mask(const char *str)
{
const struct cgit_snapshot_format *f;
static const char *delim = " \t,:/|;";
int tl, sl, rv = 0;
/* favor legacy setting */
if(atoi(str))
return 1;
for(;;) {
str += strspn(str,delim);
tl = strcspn(str,delim);
if (!tl)
break;
for (f = cgit_snapshot_formats; f->suffix; f++) {
sl = strlen(f->suffix);
if((tl == sl && !strncmp(f->suffix, str, tl)) ||
(tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
rv |= f->bit;
break;
}
}
str += tl;
}
return rv;
}
