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129 lines
2.6 KiB
129 lines
2.6 KiB
#include "mergerfs_api.hpp"
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#include "fs_xattr.hpp"
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#include "fs_exists.hpp"
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#include "fs_xattr.hpp"
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#include "str.hpp"
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#include "scope_guard.hpp"
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#include <array>
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#include <cstring>
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static
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std::string
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_mergerfs_config_file(const fs::path &mount_)
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{
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return mount_ / ".mergerfs";
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}
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bool
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mergerfs::api::is_mergerfs(const fs::path &mountpoint_)
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{
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fs::path cfgfile;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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return fs::exists(cfgfile);
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}
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int
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mergerfs::api::get_kvs(const fs::path &mountpoint_,
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std::map<std::string,std::string> *kvs_)
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{
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int rv;
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fs::path cfgfile;
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std::map<std::string,std::string> kvs;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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rv = fs::xattr::get(cfgfile,&kvs);
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if(rv < 0)
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return rv;
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for(auto &[k,v] : kvs)
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{
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std::string key;
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key = str::remove_prefix(k,"user.mergerfs.");
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kvs_->insert({key,v});
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}
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return 0;
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}
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std::string
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get_kv(const fs::path &mountpoint_,
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const std::string &key_,
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std::string *val_)
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{
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std::string val;
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fs::path cfgfile;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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fs::xattr::get(cfgfile,key_,&val);
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return val;
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}
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int
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mergerfs::api::set_kv(const fs::path &mountpoint_,
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const std::string &key_,
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const std::string &val_)
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{
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fs::path cfgfile;
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std::string xattr_key;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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xattr_key = "user.mergerfs." + key_;
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return fs::xattr::set(cfgfile,xattr_key,val_,0);
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}
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int
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mergerfs::api::allpaths(const std::string &input_path_,
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std::vector<std::string> *output_paths_)
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{
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int rv;
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std::string val;
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rv = fs::xattr::get(input_path_,
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"user.mergerfs.allpaths",
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&val);
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if(rv < 0)
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return rv;
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str::split_on_null(val,output_paths_);
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return 0;
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}
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int
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mergerfs::api::basepath(const std::string &input_path_,
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std::string *basepath_)
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{
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return fs::xattr::get(input_path_,
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"user.mergerfs.basepath",
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basepath_);
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}
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int
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mergerfs::api::relpath(const std::string &input_path_,
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std::string *relpath_)
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{
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return fs::xattr::get(input_path_,
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"user.mergerfs.relpath",
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relpath_);
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}
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int
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mergerfs::api::fullpath(const std::string &input_path_,
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std::string *fullpath_)
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{
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return fs::xattr::get(input_path_,
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"user.mergerfs.fullpath",
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fullpath_);
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}
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