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Add support for putting modpacks directly into mod directories
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1f670fc688
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747ff7daf8
@ -59,6 +59,12 @@ This happens if the following directory exists:
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Mods should be then be placed in:
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$world/game/mods/
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Modpack support
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----------------
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Mods can be put in a subdirectory, if the parent directory, which otherwise
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should be a mod, contains a file named modpack.txt. This file shall be
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empty, except for lines starting with #, which are comments.
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Mod directory structure
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------------------------
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mods
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111
src/mods.cpp
111
src/mods.cpp
@ -26,6 +26,64 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "strfnd.h"
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#include "log.h"
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static void collectMods(const std::string &modspath,
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std::queue<ModSpec> &mods_satisfied,
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core::list<ModSpec> &mods_unsorted,
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std::map<std::string, std::string> &mod_names,
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std::string indentation)
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{
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TRACESTREAM(<<indentation<<"collectMods(\""<<modspath<<"\")"<<std::endl);
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TRACEDO(indentation += " ");
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std::vector<fs::DirListNode> dirlist = fs::GetDirListing(modspath);
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for(u32 j=0; j<dirlist.size(); j++){
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if(!dirlist[j].dir)
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continue;
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std::string modname = dirlist[j].name;
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std::string modpath = modspath + DIR_DELIM + modname;
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TRACESTREAM(<<indentation<<"collectMods: "<<modname<<" at \""<<modpath<<"\""<<std::endl);
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// Handle modpacks (defined by containing modpack.txt)
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{
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std::ifstream is((modpath+DIR_DELIM+"modpack.txt").c_str(),
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std::ios_base::binary);
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if(is.good()){
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// Is a modpack
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is.close(); // We don't actually need the file
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// Recurse into it
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collectMods(modpath, mods_satisfied, mods_unsorted, mod_names, indentation);
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continue;
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}
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}
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// Detect mod name conflicts
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{
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std::map<std::string, std::string>::const_iterator i;
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i = mod_names.find(modname);
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if(i != mod_names.end()){
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std::string s;
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infostream<<indentation<<"WARNING: Mod name conflict detected: "
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<<std::endl
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<<"Already loaded: "<<i->second<<std::endl
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<<"Will not load: "<<modpath<<std::endl;
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continue;
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}
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}
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std::set<std::string> depends;
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std::ifstream is((modpath+DIR_DELIM+"depends.txt").c_str(),
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std::ios_base::binary);
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while(is.good()){
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std::string dep;
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std::getline(is, dep);
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dep = trim(dep);
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if(dep != "")
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depends.insert(dep);
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}
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ModSpec spec(modname, modpath, depends);
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mods_unsorted.push_back(spec);
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if(depends.empty())
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mods_satisfied.push(spec);
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mod_names[modname] = modpath;
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}
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}
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// Get a dependency-sorted list of ModSpecs
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core::list<ModSpec> getMods(core::list<std::string> &modspaths)
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throw(ModError)
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@ -38,41 +96,7 @@ core::list<ModSpec> getMods(core::list<std::string> &modspaths)
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for(core::list<std::string>::Iterator i = modspaths.begin();
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i != modspaths.end(); i++){
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std::string modspath = *i;
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std::vector<fs::DirListNode> dirlist = fs::GetDirListing(modspath);
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for(u32 j=0; j<dirlist.size(); j++){
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if(!dirlist[j].dir)
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continue;
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std::string modname = dirlist[j].name;
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std::string modpath = modspath + DIR_DELIM + modname;
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// Detect mod name conflicts
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{
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std::map<std::string, std::string>::const_iterator i;
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i = mod_names.find(modname);
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if(i != mod_names.end()){
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std::string s;
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infostream<<"WARNING: Mod name conflict detected: "
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<<std::endl
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<<"Already loaded: "<<i->second<<std::endl
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<<"Will not load: "<<modpath<<std::endl;
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continue;
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}
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}
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std::set<std::string> depends;
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std::ifstream is((modpath+DIR_DELIM+"depends.txt").c_str(),
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std::ios_base::binary);
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while(is.good()){
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std::string dep;
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std::getline(is, dep);
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dep = trim(dep);
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if(dep != "")
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depends.insert(dep);
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}
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ModSpec spec(modname, modpath, depends);
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mods_unsorted.push_back(spec);
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if(depends.empty())
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mods_satisfied.push(spec);
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mod_names[modname] = modpath;
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}
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collectMods(modspath, mods_satisfied, mods_unsorted, mod_names, "");
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}
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// Sort by depencencies
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while(!mods_satisfied.empty()){
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@ -107,9 +131,26 @@ core::list<ModSpec> getMods(core::list<std::string> &modspaths)
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errs<<"."<<std::endl;
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mods_sorted.push_back(mod);
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}
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// If an error occurred, throw an exception
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if(errs.str().size() != 0){
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throw ModError(errs.str());
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}
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// Print out some debug info
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TRACESTREAM(<<"Detected mods in load order:"<<std::endl);
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for(core::list<ModSpec>::Iterator i = mods_sorted.begin();
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i != mods_sorted.end(); i++){
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ModSpec &mod = *i;
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TRACESTREAM(<<"name=\""<<mod.name<<"\" path=\""<<mod.path<<"\"");
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TRACESTREAM(<<" depends=[");
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for(std::set<std::string>::iterator i = mod.depends.begin();
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i != mod.depends.end(); i++)
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TRACESTREAM(<<" "<<(*i));
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TRACESTREAM(<<" ] unsatisfied_depends=[");
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for(std::set<std::string>::iterator i = mod.unsatisfied_depends.begin();
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i != mod.unsatisfied_depends.end(); i++)
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TRACESTREAM(<<" "<<(*i));
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TRACESTREAM(<<" ]"<<std::endl);
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}
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return mods_sorted;
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}
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