feat: add parser for current impl of packwiz mod.toml

This reads a local mod.toml file and extract information from it. Using
C libs in C++ is kind of a pain tho :(
This commit is contained in:
flow 2022-04-13 21:25:08 -03:00 committed by flow
parent eaa5ce4467
commit 8e4438b375
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GPG Key ID: 8D0F221F0A59F469
3 changed files with 96 additions and 1 deletions

View File

@ -25,7 +25,7 @@ class ProviderCapabilities {
} }
return ""; return "";
} }
static QString providerName(Provider p) static const char* providerName(Provider p)
{ {
switch(p){ switch(p){
case Provider::MODRINTH: case Provider::MODRINTH:

View File

@ -1,6 +1,7 @@
#include "Packwiz.h" #include "Packwiz.h"
#include "modplatform/ModIndex.h" #include "modplatform/ModIndex.h"
#include "toml.h"
#include <QDebug> #include <QDebug>
#include <QDir> #include <QDir>
@ -58,3 +59,92 @@ void Packwiz::updateModIndex(QDir& index_dir, Mod& mod)
addToStream("project-id", mod.project_id.toString()); addToStream("project-id", mod.project_id.toString());
} }
} }
auto Packwiz::getIndexForMod(QDir& index_dir, QString mod_name) -> Mod
{
Mod mod;
auto index_file_name = QString("%1.toml").arg(mod_name);
QFile index_file(index_dir.absoluteFilePath(index_file_name));
if (!index_file.exists()) { return mod; }
if (!index_file.open(QIODevice::ReadOnly)) { return mod; }
toml_table_t* table;
char errbuf[200];
table = toml_parse(index_file.readAll().data(), errbuf, sizeof(errbuf));
index_file.close();
if (!table) {
qCritical() << QString("Could not open file %1").arg(index_file_name);
return mod;
}
// Helper function for extracting data from the TOML file
auto stringEntry = [&](toml_table_t* parent, const char* entry_name) -> QString {
toml_datum_t var = toml_string_in(parent, entry_name);
if (!var.ok) {
qCritical() << QString("Failed to read property '%1' in mod metadata.").arg(entry_name);
return {};
}
QString tmp = var.u.s;
free(var.u.s);
return tmp;
};
{ // Basic info
mod.name = stringEntry(table, "name");
// Basic sanity check
if (mod.name != mod_name) {
qCritical() << QString("Name mismatch in mod metadata:\nExpected:%1\nGot:%2").arg(mod_name, mod.name);
return {};
}
mod.filename = stringEntry(table, "filename");
mod.side = stringEntry(table, "side");
}
{ // [download] info
toml_table_t* download_table = toml_table_in(table, "download");
if (!download_table) {
qCritical() << QString("No [download] section found on mod metadata!");
return {};
}
mod.url = stringEntry(download_table, "url");
mod.hash_format = stringEntry(download_table, "hash-format");
mod.hash = stringEntry(download_table, "hash");
}
{ // [update] info
using ProviderCaps = ModPlatform::ProviderCapabilities;
using Provider = ModPlatform::Provider;
toml_table_t* update_table = toml_table_in(table, "update");
if (!update_table) {
qCritical() << QString("No [update] section found on mod metadata!");
return {};
}
toml_table_t* mod_provider_table;
if ((mod_provider_table = toml_table_in(update_table, ProviderCaps::providerName(Provider::FLAME)))) {
mod.provider = Provider::FLAME;
} else if ((mod_provider_table = toml_table_in(update_table, ProviderCaps::providerName(Provider::MODRINTH)))) {
mod.provider = Provider::MODRINTH;
} else {
qCritical() << "No mod provider on mod metadata!";
return {};
}
mod.file_id = stringEntry(mod_provider_table, "file-id");
mod.project_id = stringEntry(mod_provider_table, "project-id");
}
toml_free(table);
return mod;
}

View File

@ -39,4 +39,9 @@ class Packwiz {
* TODO: Ask the user if they want to override, and delete the old mod's files, or keep the old one. * TODO: Ask the user if they want to override, and delete the old mod's files, or keep the old one.
* */ * */
static void updateModIndex(QDir& index_dir, Mod& mod); static void updateModIndex(QDir& index_dir, Mod& mod);
/* Gets the metadata for a mod with a particular name.
* If the mod doesn't have a metadata, it simply returns an empty Mod object.
* */
static auto getIndexForMod(QDir& index_dir, QString mod_name) -> Mod;
}; };