64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
#include "session.h"
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#include "parser.h"
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#include "errors.h"
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#include <fmt/core.h>
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Session::Session():
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spaces {}
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{
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this->current_space = nullptr;
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this->pc = -1;
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}
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std::string Session::space_name(std::string prefix, bool force_suffix)
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{
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if(!force_suffix && this->spaces.count(prefix) == 0)
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return prefix;
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int counter = 0;
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while(1) {
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std::string name = fmt::format("{}_{}", prefix, counter);
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if(!this->spaces.count(name))
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return name;
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counter++;
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}
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}
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void Session::require_vspace(std::string name) const
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{
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if(name == "" && !this->current_space)
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throw NoVirtualSpaceError();
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if(name != "" && !this->spaces.count(name))
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throw NoVirtualSpaceError(name);
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}
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fs::path Session::file(std::string name)
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{
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#define err(...) std::runtime_error(fmt::format(__VA_ARGS__))
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fs::path relative_to = lex_last_used_file();
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if(name[0] != '/') {
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fs::path rel = relative_to.parent_path() / name;
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if(!fs::exists(rel))
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throw err("cannot find {} in current directory", name);
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if(fs::symlink_status(rel).type() != fs::file_type::regular)
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throw err("{} is neither a file nor a symlink to a file", name);
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return rel;
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}
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fs::path filepath(name.substr(1));
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for(auto const &p: this->path) {
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if(!fs::exists(p / filepath)) continue;
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/* This file exists, it can be the only one selected */
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if(fs::symlink_status(p / filepath).type() != fs::file_type::regular)
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throw err("{} is neither a file nor a symlink to a file", name);
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return p / filepath;
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}
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throw err("cannot find {} in library", name);
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#undef err
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}
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