mirror of https://github.com/trapexit/mergerfs.git
trapexit
4 years ago
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GPG Key ID: 4AEE18F83AFDEB23
330 changed files with 6924 additions and 3183 deletions
-
4.github/FUNDING.yml
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2LICENSE
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32Makefile
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162README.md
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302man/mergerfs.1
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366src/branch.cpp
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59src/branch.hpp
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429src/branches.cpp
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94src/branches.hpp
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49src/category.cpp
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93src/category.hpp
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154src/config.cpp
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98src/config.hpp
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1src/config_cachefiles.hpp
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1src/config_inodecalc.cpp
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5src/config_inodecalc.hpp
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9src/config_moveonenospc.cpp
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14src/config_moveonenospc.hpp
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1src/config_nfsopenhack.cpp
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1src/config_nfsopenhack.hpp
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1src/config_readdir.cpp
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1src/config_readdir.hpp
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1src/config_statfs.cpp
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1src/config_statfs.hpp
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1src/config_statfsignore.cpp
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1src/config_xattr.cpp
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1src/config_xattr.hpp
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1src/dirinfo.hpp
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1src/endian.hpp
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1src/enum.hpp
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1src/fh.hpp
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1src/fileinfo.hpp
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4src/fixed_mem_pool.hpp
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17src/from_string.cpp
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2src/from_string.hpp
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1src/fs_acl.cpp
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1src/fs_acl.hpp
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1src/fs_attr.hpp
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1src/fs_attr_linux.icpp
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1src/fs_attr_unsupported.icpp
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1src/fs_clonefile.cpp
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1src/fs_clonefile.hpp
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5src/fs_clonepath.cpp
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1src/fs_clonepath.hpp
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1src/fs_close.hpp
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1src/fs_closedir.hpp
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4src/fs_copy_file_range.hpp
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4src/fs_copy_file_range_linux.icpp
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4src/fs_copy_file_range_unsupported.icpp
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1src/fs_copydata.cpp
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1src/fs_copydata.hpp
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3src/fs_copydata_copy_file_range.cpp
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3src/fs_copydata_copy_file_range.hpp
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1src/fs_copydata_readwrite.cpp
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1src/fs_copydata_readwrite.hpp
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1src/fs_cow.cpp
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1src/fs_cow.hpp
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1src/fs_devid.hpp
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1src/fs_dirfd.hpp
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1src/fs_dup.hpp
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1src/fs_eaccess.hpp
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1src/fs_exists.hpp
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1src/fs_faccessat.hpp
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1src/fs_fadvise.hpp
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1src/fs_fadvise_posix.icpp
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1src/fs_fadvise_unsupported.icpp
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1src/fs_fallocate.hpp
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1src/fs_fallocate_linux.icpp
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3src/fs_fallocate_osx.icpp
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1src/fs_fallocate_posix.icpp
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1src/fs_fallocate_unsupported.icpp
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1src/fs_fchmod.hpp
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1src/fs_fchmodat.hpp
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1src/fs_fchown.hpp
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1src/fs_fdatasync.hpp
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1src/fs_fgetxattr.hpp
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1src/fs_ficlone.hpp
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1src/fs_ficlone_linux.icpp
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1src/fs_ficlone_unsupported.icpp
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3src/fs_file_size.cpp
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3src/fs_file_size.hpp
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1src/fs_findallfiles.cpp
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7src/fs_findallfiles.hpp
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20src/fs_findonfs.cpp
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5src/fs_findonfs.hpp
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1src/fs_flistxattr.hpp
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1src/fs_flock.hpp
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1src/fs_fsetxattr.hpp
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1src/fs_fstat.hpp
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1src/fs_fstatat.hpp
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1src/fs_fsync.hpp
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1src/fs_ftruncate.hpp
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1src/fs_futimens.hpp
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1src/fs_futimens_freebsd_11.hpp
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1src/fs_futimens_generic.hpp
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1src/fs_futimens_linux.hpp
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1src/fs_futimesat.hpp
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1src/fs_futimesat_generic.icpp
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1src/fs_futimesat_osx.icpp
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1src/fs_getdents64.cpp
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/*
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ISC License |
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Copyright (c) 2021, Antonio SJ Musumeci <trapexit@spawn.link> |
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Permission to use, copy, modify, and/or distribute this software for any |
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purpose with or without fee is hereby granted, provided that the above |
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copyright notice and this permission notice appear in all copies. |
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include "branches.hpp"
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#include "ef.hpp"
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#include "errno.hpp"
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#include "from_string.hpp"
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#include "fs_glob.hpp"
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#include "fs_realpathize.hpp"
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#include "nonstd/optional.hpp"
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#include "num.hpp"
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#include "str.hpp"
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#include <string>
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#include <fnmatch.h>
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using std::string; |
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using std::vector; |
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using nonstd::optional; |
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Branches::Impl::Impl(const uint64_t &default_minfreespace_) |
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: _default_minfreespace(default_minfreespace_) |
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{ |
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} |
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Branches::Impl& |
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Branches::Impl::operator=(Branches::Impl &rval_) |
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{ |
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auto this_base = dynamic_cast<Branch::Vector*>(this); |
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auto rval_base = dynamic_cast<Branch::Vector*>(&rval_); |
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*this_base = *rval_base; |
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return *this; |
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} |
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Branches::Impl& |
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Branches::Impl::operator=(Branches::Impl &&rval_) |
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{ |
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auto this_base = dynamic_cast<Branch::Vector*>(this); |
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auto rval_base = dynamic_cast<Branch::Vector*>(&rval_); |
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*this_base = std::move(*rval_base); |
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return *this; |
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} |
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const |
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uint64_t& |
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Branches::Impl::minfreespace(void) const |
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{ |
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return _default_minfreespace; |
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} |
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namespace l |
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{ |
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static |
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void |
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split(const std::string &s_, |
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std::string *instr_, |
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std::string *values_) |
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{ |
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uint64_t offset; |
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offset = s_.find_first_of('/'); |
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*instr_ = s_.substr(0,offset); |
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if(offset != std::string::npos) |
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*values_ = s_.substr(offset); |
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} |
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static |
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int |
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parse_mode(const string &str_, |
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Branch::Mode *mode_) |
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{ |
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if(str_ == "RW") |
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*mode_ = Branch::Mode::RW; |
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ef(str_ == "RO") |
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*mode_ = Branch::Mode::RO; |
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ef(str_ == "NC") |
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*mode_ = Branch::Mode::NC; |
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else |
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return -EINVAL; |
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return 0; |
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} |
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static |
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int |
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parse_minfreespace(const string &str_, |
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optional<uint64_t> *minfreespace_) |
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{ |
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int rv; |
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uint64_t uint64; |
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rv = str::from(str_,&uint64); |
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if(rv < 0) |
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return rv; |
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*minfreespace_ = uint64; |
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return 0; |
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} |
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static |
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int |
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parse_branch(const string &str_, |
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string *glob_, |
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Branch::Mode *mode_, |
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optional<uint64_t> *minfreespace_) |
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{ |
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int rv; |
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string options; |
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vector<string> v; |
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str::rsplit1(str_,'=',&v); |
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switch(v.size()) |
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{ |
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case 1: |
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*glob_ = v[0]; |
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*mode_ = Branch::Mode::RW; |
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break; |
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case 2: |
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*glob_ = v[0]; |
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options = v[1]; |
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v.clear(); |
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str::split(options,',',&v); |
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switch(v.size()) |
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{ |
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case 2: |
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rv = l::parse_minfreespace(v[1],minfreespace_); |
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if(rv < 0) |
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return rv; |
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case 1: |
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rv = l::parse_mode(v[0],mode_); |
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if(rv < 0) |
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return rv; |
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break; |
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case 0: |
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return -EINVAL; |
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} |
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break; |
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default: |
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return -EINVAL; |
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} |
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return 0; |
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} |
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static |
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int |
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parse(const string &str_, |
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Branches::Impl *branches_) |
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{ |
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int rv; |
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string glob; |
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StrVec paths; |
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optional<uint64_t> minfreespace; |
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Branch branch(branches_->minfreespace()); |
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rv = l::parse_branch(str_,&glob,&branch.mode,&minfreespace); |
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if(rv < 0) |
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return rv; |
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if(minfreespace.has_value()) |
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branch.set_minfreespace(minfreespace.value()); |
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fs::glob(glob,&paths); |
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fs::realpathize(&paths); |
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for(auto &path : paths) |
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{ |
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branch.path = path; |
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branches_->push_back(branch); |
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} |
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return 0; |
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} |
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static |
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int |
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set(const std::string &str_, |
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Branches::Impl *branches_) |
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{ |
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int rv; |
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StrVec paths; |
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Branches::Impl tmp_branches(branches_->minfreespace()); |
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str::split(str_,':',&paths); |
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for(auto &path : paths) |
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{ |
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rv = l::parse(path,&tmp_branches); |
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if(rv < 0) |
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return rv; |
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} |
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*branches_ = std::move(tmp_branches); |
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return 0; |
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} |
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static |
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int |
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add_begin(const std::string &str_, |
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Branches::Impl *branches_) |
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{ |
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int rv; |
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vector<string> paths; |
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Branches::Impl tmp_branches(branches_->minfreespace()); |
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str::split(str_,':',&paths); |
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for(auto &path : paths) |
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{ |
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rv = l::parse(path,&tmp_branches); |
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if(rv < 0) |
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return rv; |
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} |
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branches_->insert(branches_->begin(), |
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tmp_branches.begin(), |
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tmp_branches.end()); |
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return 0; |
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} |
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static |
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int |
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add_end(const std::string &str_, |
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Branches::Impl *branches_) |
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{ |
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int rv; |
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StrVec paths; |
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Branches::Impl tmp_branches(branches_->minfreespace()); |
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str::split(str_,':',&paths); |
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for(auto &path : paths) |
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{ |
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rv = l::parse(path,&tmp_branches); |
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if(rv < 0) |
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return rv; |
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} |
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branches_->insert(branches_->end(), |
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tmp_branches.begin(), |
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tmp_branches.end()); |
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return 0; |
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} |
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static |
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int |
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erase_begin(Branches::Impl *branches_) |
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{ |
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branches_->erase(branches_->begin()); |
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return 0; |
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} |
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static |
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int |
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erase_end(Branches::Impl *branches_) |
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{ |
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branches_->pop_back(); |
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return 0; |
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} |
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static |
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int |
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erase_fnmatch(const std::string &str_, |
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Branches::Impl *branches_) |
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{ |
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StrVec patterns; |
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str::split(str_,':',&patterns); |
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for(auto i = branches_->begin(); i != branches_->end();) |
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{ |
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int match = FNM_NOMATCH; |
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for(auto pi = patterns.cbegin(); pi != patterns.cend() && match != 0; ++pi) |
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{ |
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match = ::fnmatch(pi->c_str(),i->path.c_str(),0); |
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} |
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i = ((match == 0) ? branches_->erase(i) : (i+1)); |
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} |
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return 0; |
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} |
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} |
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int |
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Branches::Impl::from_string(const std::string &s_) |
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{ |
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std::string instr; |
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std::string values; |
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l::split(s_,&instr,&values); |
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if(instr == "+") |
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return l::add_end(values,this); |
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if(instr == "+<") |
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return l::add_begin(values,this); |
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if(instr == "+>") |
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return l::add_end(values,this); |
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if(instr == "-") |
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return l::erase_fnmatch(values,this); |
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if(instr == "-<") |
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return l::erase_begin(this); |
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if(instr == "->") |
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return l::erase_end(this); |
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if(instr == "=") |
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return l::set(values,this); |
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if(instr.empty()) |
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return l::set(values,this); |
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return -EINVAL; |
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} |
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std::string |
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Branches::Impl::to_string(void) const |
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{ |
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string tmp; |
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if(empty()) |
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return tmp; |
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for(auto &branch : *this) |
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{ |
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tmp += branch.to_string(); |
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tmp += ':'; |
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} |
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tmp.pop_back(); |
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return tmp; |
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} |
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void |
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Branches::Impl::to_paths(StrVec &paths_) const |
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{ |
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for(auto &branch : *this) |
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{ |
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paths_.push_back(branch.path); |
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} |
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} |
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int |
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Branches::from_string(const std::string &str_) |
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{ |
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int rv; |
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Branches::Ptr impl; |
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Branches::Ptr new_impl; |
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{ |
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std::lock_guard<std::mutex> lock_guard(_mutex); |
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impl = _impl; |
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} |
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new_impl = std::make_shared<Branches::Impl>(impl->minfreespace()); |
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*new_impl = *impl; |
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rv = new_impl->from_string(str_); |
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if(rv < 0) |
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return rv; |
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{ |
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std::lock_guard<std::mutex> lock_guard(_mutex); |
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_impl = new_impl; |
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} |
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return 0; |
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} |
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string |
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Branches::to_string(void) const |
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{ |
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std::lock_guard<std::mutex> lock_guard(_mutex); |
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return _impl->to_string(); |
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} |
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SrcMounts::SrcMounts(Branches &b_) |
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: _branches(b_) |
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{ |
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} |
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int |
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SrcMounts::from_string(const std::string &s_) |
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{ |
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return _branches.from_string(s_); |
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} |
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std::string |
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SrcMounts::to_string(void) const |
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{ |
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std::string rv; |
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Branches::CPtr branches = _branches; |
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if(branches->empty()) |
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return rv; |
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for(const auto &branch : *branches) |
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{ |
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rv += branch.path; |
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rv += ':'; |
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|
} |
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rv.pop_back(); |
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return rv; |
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|
} |
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@ -0,0 +1,94 @@ |
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|
/*
|
||||
|
ISC License |
||||
|
|
||||
|
Copyright (c) 2021, Antonio SJ Musumeci <trapexit@spawn.link> |
||||
|
|
||||
|
Permission to use, copy, modify, and/or distribute this software for any |
||||
|
purpose with or without fee is hereby granted, provided that the above |
||||
|
copyright notice and this permission notice appear in all copies. |
||||
|
|
||||
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
||||
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
||||
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
||||
|
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
||||
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
||||
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
||||
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
||||
|
*/ |
||||
|
|
||||
|
#pragma once
|
||||
|
|
||||
|
#include "branch.hpp"
|
||||
|
#include "nonstd/optional.hpp"
|
||||
|
#include "strvec.hpp"
|
||||
|
#include "tofrom_string.hpp"
|
||||
|
|
||||
|
#include <cstdint>
|
||||
|
#include <memory>
|
||||
|
#include <mutex>
|
||||
|
#include <string>
|
||||
|
#include <vector>
|
||||
|
|
||||
|
|
||||
|
class Branches final : public ToFromString |
||||
|
{ |
||||
|
public: |
||||
|
class Impl final : public ToFromString, public Branch::Vector |
||||
|
{ |
||||
|
public: |
||||
|
typedef std::shared_ptr<Impl> Ptr; |
||||
|
typedef std::shared_ptr<const Impl> CPtr; |
||||
|
|
||||
|
public: |
||||
|
Impl(const uint64_t &default_minfreespace_); |
||||
|
|
||||
|
public: |
||||
|
int from_string(const std::string &str) final; |
||||
|
std::string to_string(void) const final; |
||||
|
|
||||
|
public: |
||||
|
const uint64_t& minfreespace(void) const; |
||||
|
void to_paths(StrVec &strvec) const; |
||||
|
|
||||
|
public: |
||||
|
Impl& operator=(Impl &impl_); |
||||
|
Impl& operator=(Impl &&impl_); |
||||
|
|
||||
|
private: |
||||
|
const uint64_t &_default_minfreespace; |
||||
|
}; |
||||
|
|
||||
|
public: |
||||
|
typedef Branches::Impl::Ptr Ptr; |
||||
|
typedef Branches::Impl::CPtr CPtr; |
||||
|
|
||||
|
public: |
||||
|
Branches(const uint64_t &default_minfreespace_) |
||||
|
: _impl(std::make_shared<Impl>(default_minfreespace_)) |
||||
|
{} |
||||
|
|
||||
|
public: |
||||
|
int from_string(const std::string &str) final; |
||||
|
std::string to_string(void) const final; |
||||
|
|
||||
|
public: |
||||
|
operator CPtr() const { std::lock_guard<std::mutex> lg(_mutex); return _impl; } |
||||
|
CPtr operator->() const { std::lock_guard<std::mutex> lg(_mutex); return _impl; } |
||||
|
|
||||
|
private: |
||||
|
mutable std::mutex _mutex; |
||||
|
Ptr _impl; |
||||
|
}; |
||||
|
|
||||
|
class SrcMounts : public ToFromString |
||||
|
{ |
||||
|
public: |
||||
|
SrcMounts(Branches &b_); |
||||
|
|
||||
|
public: |
||||
|
int from_string(const std::string &str) final; |
||||
|
std::string to_string(void) const final; |
||||
|
|
||||
|
private: |
||||
|
Branches &_branches; |
||||
|
}; |
||||
@ -0,0 +1,49 @@ |
|||||
|
/*
|
||||
|
ISC License |
||||
|
|
||||
|
Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link> |
||||
|
|
||||
|
Permission to use, copy, modify, and/or distribute this software for any |
||||
|
purpose with or without fee is hereby granted, provided that the above |
||||
|
copyright notice and this permission notice appear in all copies. |
||||
|
|
||||
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
||||
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
||||
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
||||
|
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
||||
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
||||
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
||||
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
||||
|
*/ |
||||
|
|
||||
|
#include "category.hpp"
|
||||
|
#include "errno.hpp"
|
||||
|
#include "str.hpp"
|
||||
|
|
||||
|
#include <string>
|
||||
|
|
||||
|
int |
||||
|
Category::Base::from_string(const std::string &s_) |
||||
|
{ |
||||
|
int rv; |
||||
|
|
||||
|
for(auto func : funcs) |
||||
|
{ |
||||
|
rv = func->from_string(s_); |
||||
|
if(rv < 0) |
||||
|
return rv; |
||||
|
} |
||||
|
|
||||
|
return 0; |
||||
|
} |
||||
|
|
||||
|
std::string |
||||
|
Category::Base::to_string(void) const |
||||
|
{ |
||||
|
std::set<std::string> rv; |
||||
|
|
||||
|
for(auto func : funcs) |
||||
|
rv.insert(func->to_string()); |
||||
|
|
||||
|
return str::join(rv,','); |
||||
|
} |
||||
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