/* 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 repolist cgit_repolist;
struct repoinfo *cgit_repo;
char *cgit_root_title = "Git repository browser";
char *cgit_css = "/cgit.css";
char *cgit_logo = "/git-logo.png";
char *cgit_logo_link = "http://www.kernel.org/pub/software/scm/git/docs/";
char *cgit_module_link = "./?repo=%s&page=commit&id=%s";
char *cgit_virtual_root = NULL;
char *cgit_cache_root = "/var/cache/cgit";
int cgit_nocache = 0;
int cgit_snapshots = 0;
int cgit_max_lock_attempts = 5;
int cgit_cache_root_ttl = 5;
int cgit_cache_repo_ttl = 5;
int cgit_cache_dynamic_ttl = 5;
int cgit_cache_static_ttl = -1;
int cgit_cache_max_create_time = 5;
int cgit_max_msg_len = 60;
int cgit_max_commit_count = 50;
char *cgit_repo_name = NULL;
char *cgit_repo_desc = NULL;
char *cgit_repo_owner = NULL;
int cgit_query_has_symref = 0;
int cgit_query_has_sha1 = 0;
char *cgit_querystring = NULL;
char *cgit_query_repo = NULL;
char *cgit_query_page = NULL;
char *cgit_query_head = NULL;
char *cgit_query_search = NULL;
char *cgit_query_sha1 = NULL;
char *cgit_query_sha2 = NULL;
char *cgit_query_path = NULL;
char *cgit_query_name = NULL;
int cgit_query_ofs = 0;
int htmlfd = 0;
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;
}
struct repoinfo *add_repo(const char *url)
{
struct repoinfo *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 repoinfo));
}
ret = &cgit_repolist.repos[cgit_repolist.count-1];
ret->url = xstrdup(url);
ret->name = ret->url;
ret->path = NULL;
ret->desc = NULL;
ret->owner = NULL;
ret->snapshots = cgit_snapshots;
ret->module_link = cgit_module_link;
return ret;
}
void cgit_global_config_cb(const char *name, const char *value)
{
if (!strcmp(name, "root-title"))
cgit_root_title = xstrdup(value);
else if (!strcmp(name, "css"))
cgit_css = xstrdup(value);
else if (!strcmp(name, "logo"))
cgit_logo = xstrdup(value);
else if (!strcmp(name, "logo-link"))
cgit_logo_link = xstrdup(value);
else if (!strcmp(name, "module-link"))
cgit_module_link = xstrdup(value);
else if (!strcmp(name, "virtual-root"))
cgit_virtual_root = xstrdup(value);
else if (!strcmp(name, "nocache"))
cgit_nocache = atoi(value);
else if (!strcmp(name, "snapshots"))
cgit_snapshots = atoi(value);
else if (!strcmp(name, "cache-root"))
cgit_cache_root = xstrdup(value);
else if (!strcmp(name, "cache-root-ttl"))
cgit_cache_root_ttl = atoi(value);
else if (!strcmp(name, "cache-repo-ttl"))
cgit_cache_repo_ttl = atoi(value);
else if (!strcmp(name, "cache-static-ttl"))
cgit_cache_static_ttl = atoi(value);
else if (!strcmp(name, "cache-dynamic-ttl"))
cgit_cache_dynamic_ttl = atoi(value);
else if (!strcmp(name, "max-message-length"))
cgit_max_msg_len = atoi(value);
else if (!strcmp(name, "max-commit-count"))
cgit_max_commit_count = atoi(value);
else if (!strcmp(name, "repo.url"))
cgit_repo = add_repo(value);
else if (!strcmp(name, "repo.name"))
cgit_repo->name = xstrdup(value);
else if (cgit_repo && !strcmp(name, "repo.path"))
cgit_repo->path = xstrdup(value);
else if (cgit_repo && !strcmp(name, "repo.desc"))
cgit_repo->desc = xstrdup(value);
else if (cgit_repo && !strcmp(name, "repo.owner"))
cgit_repo->owner = xstrdup(value);
else if (cgit_repo && !strcmp(name, "repo.snapshots"))
cgit_repo->snapshots = atoi(value);
else if (cgit_repo && !strcmp(name, "repo.module-link"))
cgit_repo->module_link= xstrdup(value);
else if (!strcmp(name, "include"))
cgit_read_config(value, cgit_global_config_cb);
}
void cgit_repo_config_cb(const char *name, const char *value)
{
if (!strcmp(name, "name"))
cgit_repo_name = xstrdup(value);
else if (!strcmp(name, "desc"))
cgit_repo_desc = xstrdup(value);
else if (!strcmp(name, "owner"))
cgit_repo_owner = xstrdup(value);
}
void cgit_querystring_cb(const char *name, const char *value)
{
if (!strcmp(name,"r")) {
cgit_query_repo = xstrdup(value);
} else if (!strcmp(name, "p")) {
cgit_query_page = xstrdup(value);
} else if (!strcmp(name, "q")) {
cgit_query_search = xstrdup(value);
} else if (!strcmp(name, "h")) {
cgit_query_head = xstrdup(value);
cgit_query_has_symref = 1;
} else if (!strcmp(name, "id")) {
cgit_query_sha1 = xstrdup(value);
cgit_query_has_sha1 = 1;
} else if (!strcmp(name, "id2")) {
cgit_query_sha2 = xstrdup(value);
cgit_query_has_sha1 = 1;
} else if (!strcmp(name, "ofs")) {
cgit_query_ofs = atoi(value);
} else if (!strcmp(name, "path")) {
cgit_query_path = xstrdup(value);
} else if (!strcmp(name, "name")) {
cgit_query_name = xstrdup(value);
}
}
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);
return NULL;
}
int hextoint(char c)
{
if (c >= 'a' && c <= 'f')
return 10 + c - 'a';
else if (c >= 'A' && c <= 'F')
return 10 + c - 'A';
else if (c >= '0' && c <= '9')
return c - '0';
else
return -1;
}
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, &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_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)
{
struct diff_options opt;
int ret;
diff_setup(&opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.detect_rename = 1;
opt.recursive = 1;
opt.format_callback = cgit_diff_tree_cb;
opt.format_callback_data = fn;
diff_setup_done(&opt);
if (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);
}
