std::string AptCacheFile::getLongDescription(const pkgCache::VerIterator &ver)
{
if (ver.end() || ver.FileList().end() || GetPkgRecords() == 0) {
return string();
}
pkgCache::DescIterator d = ver.TranslatedDescription();
if (d.end()) {
return string();
}
pkgCache::DescFileIterator df = d.FileList();
if (df.end()) {
return string();
} else {
return m_packageRecords->Lookup(df).LongDesc();
}
}
string fetchChangelogData(AptCacheFile &CacheFile,
pkgAcquire &Fetcher,
pkgCache::VerIterator Ver,
pkgCache::VerIterator currver,
string *update_text,
string *updated,
string *issued)
{
string changelog;
pkgAcqChangelog *c = new pkgAcqChangelog(&Fetcher, Ver);
// try downloading it, if that fails, try third-party-changelogs location
// FIXME: Fetcher.Run() is "Continue" even if I get a 404?!?
Fetcher.Run();
// error
pkgRecords Recs(CacheFile);
pkgCache::PkgIterator Pkg = Ver.ParentPkg();
pkgRecords::Parser &rec=Recs.Lookup(Ver.FileList());
string srcpkg = rec.SourcePkg().empty() ? Pkg.Name() : rec.SourcePkg();
changelog = "Changelog for this version is not yet available";
// return empty string if we don't have a file to read
if (!FileExists(c->DestFile)) {
return changelog;
}
if (_error->PendingError()) {
return changelog;
}
ifstream in(c->DestFile.c_str());
string line;
g_autoptr(GRegex) regexVer = NULL;
regexVer = g_regex_new("(?'source'.+) \\((?'version'.*)\\) "
"(?'dist'.+); urgency=(?'urgency'.+)",
G_REGEX_CASELESS,
G_REGEX_MATCH_ANCHORED,
0);
g_autoptr(GRegex) regexDate = NULL;
regexDate = g_regex_new("^ -- (?'maintainer'.+) (?'mail'<.+>) (?'date'.+)$",
G_REGEX_CASELESS,
G_REGEX_MATCH_ANCHORED,
0);
changelog = "";
while (getline(in, line)) {
// we don't want the additional whitespace, because it can confuse
// some markdown parsers used by client tools
if (starts_with(line, " "))
line.erase(0,1);
// no need to free str later, it is allocated in a static buffer
const char *str = utf8(line.c_str());
if (strcmp(str, "") == 0) {
changelog.append("\n");
continue;
} else {
changelog.append(str);
changelog.append("\n");
}
if (starts_with(str, srcpkg.c_str())) {
// Check to see if the the text isn't about the current package,
// otherwise add a == version ==
GMatchInfo *match_info;
if (g_regex_match(regexVer, str, G_REGEX_MATCH_ANCHORED, &match_info)) {
gchar *version;
version = g_match_info_fetch_named(match_info, "version");
// Compare if the current version is shown in the changelog, to not
// display old changelog information
if (_system != 0 &&
_system->VS->DoCmpVersion(version, version + strlen(version),
currver.VerStr(), currver.VerStr() + strlen(currver.VerStr())) <= 0) {
g_free (version);
break;
} else {
if (!update_text->empty()) {
update_text->append("\n\n");
}
update_text->append(" == ");
update_text->append(version);
update_text->append(" ==");
g_free (version);
}
}
g_match_info_free (match_info);
} else if (starts_with(str, " ")) {
// update descritption
update_text->append("\n");
update_text->append(str);
} else if (starts_with(str, " --")) {
// Parse the text to know when the update was issued,
// and when it got updated
GMatchInfo *match_info;
if (g_regex_match(regexDate, str, G_REGEX_MATCH_ANCHORED, &match_info)) {
GTimeVal dateTime = {0, 0};
gchar *date;
date = g_match_info_fetch_named(match_info, "date");
time_t time;
g_warn_if_fail(RFC1123StrToTime(date, time));
dateTime.tv_sec = time;
g_free(date);
*issued = g_time_val_to_iso8601(&dateTime);
if (updated->empty()) {
*updated = g_time_val_to_iso8601(&dateTime);
}
}
g_match_info_free(match_info);
}
}
return changelog;
}