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exiv2.cpp
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exiv2.cpp
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// SPDX-License-Identifier: GPL-2.0-or-later
#include <exiv2/exiv2.hpp>
// include local header files which are not part of libexiv2
#include "actions.hpp"
#include "app_utils.hpp"
#include "exiv2app.hpp"
#include "convert.hpp"
#include "getopt.hpp"
#include "i18n.h" // NLS support.
#include "utils.hpp"
#include "xmp_exiv2.hpp"
#include <algorithm>
#include <array>
#include <cctype>
#include <cstring>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <regex>
#if defined(_WIN32)
#include <fcntl.h>
#include <io.h>
#include <windows.h>
#else
#include <sys/select.h>
#include <sys/time.h>
#include <unistd.h>
#endif
// *****************************************************************************
// local declarations
namespace {
constexpr auto emptyYodAdjust_ = std::array{
Params::YodAdjust{false, "-Y", 0},
Params::YodAdjust{false, "-O", 0},
Params::YodAdjust{false, "-D", 0},
};
//! List of all command identifiers and corresponding strings
constexpr struct CmdIdAndString {
CmdId cmdId_;
const char* string_;
//! Comparison operator for \em string
bool operator==(const std::string& string) const {
return string == string_;
}
} cmdIdAndString[] = {
{CmdId::add, "add"},
{CmdId::set, "set"},
{CmdId::del, "del"},
{CmdId::reg, "reg"},
{CmdId::invalid, "invalidCmd"}, // End of list marker
};
// Return a command Id for a command string
CmdId commandId(const std::string& cmdString);
// Evaluate [-]HH[:MM[:SS]], returns true and sets time to the value
// in seconds if successful, else returns false.
bool parseTime(const std::string& ts, int64_t& time);
/*!
@brief Parse the oparg string into a bitmap of common targets.
@param optArg Option arguments
@param action Action being processed
@return A bitmap of common targets or -1 in case of a parse error
*/
int64_t parseCommonTargets(const std::string& optArg, const std::string& action);
/*!
@brief Parse numbers separated by commas into container
@param previewNumbers Container for the numbers
@param optArg Option arguments
@param j Starting index into optArg
@return Number of characters processed
*/
int parsePreviewNumbers(Params::PreviewNumbers& previewNumbers, const std::string& optArg, int j);
/*!
@brief Parse metadata modification commands from multiple files
@param modifyCmds Reference to a structure to store the parsed commands
@param cmdFiles Container with the file names
*/
bool parseCmdFiles(ModifyCmds& modifyCmds, const Params::CmdFiles& cmdFiles);
/*!
@brief Parse metadata modification commands from a container of commands
@param modifyCmds Reference to a structure to store the parsed commands
@param cmdLines Container with the commands
*/
bool parseCmdLines(ModifyCmds& modifyCmds, const Params::CmdLines& cmdLines);
/*!
@brief Parse one line of the command file
@param modifyCmd Reference to a command structure to store the parsed
command
@param line Input line
@param num Line number (used for error output)
*/
bool parseLine(ModifyCmd& modifyCmd, const std::string& line, int num);
/*!
@brief Parses a string containing backslash-escapes
@param input Input string, assumed to be UTF-8
*/
std::string parseEscapes(const std::string& input);
} // namespace
// *****************************************************************************
// Main
int main(int argc, char* const argv[]) {
Exiv2::XmpParser::initialize();
::atexit(Exiv2::XmpParser::terminate);
#ifdef EXV_ENABLE_NLS
setlocale(LC_ALL, "");
auto localeDir = []() -> std::string {
if constexpr (EXV_LOCALEDIR[0] == '/')
return EXV_LOCALEDIR;
else
return Exiv2::getProcessPath() + EXV_SEPARATOR_STR + EXV_LOCALEDIR;
}();
bindtextdomain(EXV_PACKAGE_NAME, localeDir.c_str());
textdomain(EXV_PACKAGE_NAME);
#endif
// Handle command line arguments
Params& params = Params::instance();
if (params.getopt(argc, argv)) {
params.usage();
return 1;
}
if (params.help_) {
params.help();
return 0;
}
if (params.version_) {
Params::version(params.verbose_);
return 0;
}
int returnCode = EXIT_SUCCESS;
try {
// Create the required action class
auto task = Action::TaskFactory::instance().create(static_cast<Action::TaskType>(params.action_));
// Process all files
auto filesCount = params.files_.size();
if (params.action_ & Action::extract && params.target_ & Params::ctStdInOut && filesCount > 1) {
std::cerr << params.progname() << ": " << _("Only one file is allowed when extracting to stdout") << '\n';
returnCode = EXIT_FAILURE;
} else {
int w = [=]() {
if (filesCount > 9) {
if (filesCount > 99)
return 3;
return 2;
}
return 1;
}();
int n = 1;
for (const auto& file : params.files_) {
// If extracting to stdout then ignore verbose
if (params.verbose_ && !(params.action_ & Action::extract && params.target_ & Params::ctStdInOut)) {
std::cout << _("File") << " " << std::setw(w) << std::right << n++ << "/" << filesCount << ": " << file
<< '\n';
}
task->setBinary(params.binary_);
int ret = task->run(file);
if (returnCode == EXIT_SUCCESS)
returnCode = ret;
}
Action::TaskFactory::instance().cleanup();
Exiv2::XmpParser::terminate();
}
} catch (const std::exception& exc) {
std::cerr << "Uncaught exception: " << exc.what() << '\n';
returnCode = EXIT_FAILURE;
}
// Return a positive one byte code for better consistency across platforms
return static_cast<unsigned int>(returnCode) % 256;
} // main
// *****************************************************************************
// class Params
Params::Params() :
optstring_(":hVvqfbuktTFa:Y:O:D:r:p:P:d:e:i:c:m:M:l:S:g:K:n:Q:"),
target_(ctExif | ctIptc | ctComment | ctXmp),
yodAdjust_(emptyYodAdjust_),
format_("%Y%m%d_%H%M%S") {
}
Params& Params::instance() {
static Params instance_;
return instance_;
}
void Params::version(bool verbose, std::ostream& os) {
os << EXV_PACKAGE_STRING << '\n';
if (Params::instance().greps_.empty() && !verbose) {
os << "\n"
<< _("This program is free software; you can redistribute it and/or\n"
"modify it under the terms of the GNU General Public License\n"
"as published by the Free Software Foundation; either version 2\n"
"of the License, or (at your option) any later version.\n")
<< "\n"
<< _("This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n")
<< "\n"
<< _("You should have received a copy of the GNU General Public\n"
"License along with this program; if not, write to the Free\n"
"Software Foundation, Inc., 51 Franklin Street, Fifth Floor,\n"
"Boston, MA 02110-1301 USA\n");
}
if (verbose)
Exiv2::dumpLibraryInfo(os, Params::instance().greps_);
}
void Params::usage(std::ostream& os) const {
os << _("Usage:") << " " << progname() << " " << _("[ option [ arg ] ]+ [ action ] file ...\n\n")
<< _("Image metadata manipulation tool.\n");
}
void Params::help(std::ostream& os) const {
usage(os);
os << _("\nWhere file is one or more files, optionally containing a URL\n"
"(http, https, ftp, sftp, data or file) or wildcard\n")
<< _("\nActions:\n")
<< _(" pr | print Print image metadata (default is a summary). This is the default\n"
" action\n")
<< _(" ad | adjust Adjust Exif timestamps by the given time. Requires\n"
" at least one of -a, -Y, -O or -D\n")
<< _(" rm | delete Deletes image metadata, use -d to choose type to delete\n"
" (default is all)\n")
<< _(" in | insert Insert metadata from .exv, .xmp, thumbnail or .icc file.\n"
" Use option -S to change the suffix of the input files and\n"
" -l to change the location\n")
<< _(" ex | extract Extract metadata to .exv, .xmp, preview image, thumbnail,\n"
" or ICC profile. Use option -S to change the suffix of the input\n"
" files and -l to change the location\n")
<< _(" mv | rename Rename files and/or set file timestamps according to the\n"
" Exif timestamps. The filename format can be set with\n"
" -r format, timestamp options are controlled with -t and -T\n")
<< _(" mo | modify Apply commands to modify the Exif, IPTC and XMP metadata.\n"
" Requires option -m or -M\n")
<< _(" fi | fixiso Copy ISO setting from Canon and Nikon makernotes, to the\n"
" standard Exif tag\n")
<< _(" fc | fixcom Convert the Unicode Exif user comment to UCS-2. The current\n"
" character encoding can be specified with the -n option\n")
<< _("\nOptions:\n") << _(" -h Display this help and exit\n")
<< _(" -V Show the program version and exit\n") << _(" -v Be verbose during the program run\n")
<< _(" -q Silence warnings and error messages (quiet)\n")
<< _(" -Q lvl Set log-level to d(ebug), i(nfo), w(arning), e(rror) or m(ute)\n")
<< _(" -b Obsolete, reserved for use with the test suit\n")
<< _(" -u Show unknown tags (e.g., Exif.SonyMisc3c.0x022b)\n")
<< _(" -g str Only output where 'str' matches in output text (grep)\n"
" Append /i to 'str' for case insensitive\n")
<< _(" -K key Only output where 'key' exactly matches tag's key\n")
<< _(" -n enc Character set to decode Exif Unicode user comments\n")
<< _(" -k Preserve file timestamps when updating files (keep)\n")
<< _(" -t Set the file timestamp from Exif metadata when renaming (overrides -k)\n")
<< _(" -T Only set the file timestamp from Exif metadata ('rename' action)\n")
<< _(" -f Do not prompt before overwriting existing files (force)\n")
<< _(" -F Do not prompt before renaming files (Force)\n")
<< _(" -a time Time adjustment in the format [+|-]HH[:MM[:SS]]. For 'adjust' action\n")
<< _(" -Y yrs Year adjustment with the 'adjust' action\n")
<< _(" -O mon Month adjustment with the 'adjust' action\n")
<< _(" -D day Day adjustment with the 'adjust' action\n")
<< _(" -p mode Print mode for the 'print' action. Possible modes are:\n")
<< _(" s : A summary of the Exif metadata (the default)\n")
<< _(" a : Exif, IPTC and XMP tags (shortcut for -Pkyct)\n")
<< _(" e : Exif tags (shortcut for -PEkycv)\n")
<< _(" t : Interpreted (translated) Exif tags (-PEkyct)\n")
<< _(" v : Plain (untranslated) Exif tags values (-PExgnycv)\n")
<< _(" h : Hex dump of the Exif tags (-PExgnycsh)\n") << _(" i : IPTC tags (-PIkyct)\n")
<< _(" x : XMP tags (-PXkyct)\n") << _(" c : JPEG comment\n")
<< _(" p : List available image preview, sorted by size\n")
<< _(" C : Print ICC profile\n")
<< _(" R : Recursive print structure of image (debug build only)\n")
<< _(" S : Print structure of image (limited file types)\n")
<< _(" X : Extract \"raw\" XMP\n")
<< _(" -P flgs Print flags for fine control of tag lists ('print' action):\n")
<< _(" E : Exif tags\n") << _(" I : IPTC tags\n") << _(" X : XMP tags\n")
<< _(" x : Tag number for Exif or IPTC tags (in hexadecimal)\n")
<< _(" g : Group name (e.g. Exif.Photo.UserComment, Photo)\n")
<< _(" k : Key (e.g. Exif.Photo.UserComment)\n")
<< _(" l : Tag label (e.g. Exif.Photo.UserComment, 'User comment')\n")
<< _(" d : Tag description\n")
<< _(" n : Tag name (e.g. Exif.Photo.UserComment, UserComment)\n") << _(" y : Type\n")
<< _(" y : Type\n") << _(" c : Number of components (count)\n")
<< _(" s : Size in bytes of vanilla value (may include NULL)\n")
<< _(" v : Plain data value of untranslated (vanilla)\n")
<< _(" V : Plain data value, data type and the word 'set'\n")
<< _(" t : Interpreted (translated) human readable values\n")
<< _(" h : Hex dump of the data\n")
<< _(" -d tgt1 Delete target(s) for the 'delete' action. Possible targets are:\n")
<< _(" a : All supported metadata (the default)\n") << _(" e : Exif tags\n")
<< _(" t : Exif thumbnail only\n") << _(" i : IPTC tags\n")
<< _(" x : XMP tags\n") << _(" c : JPEG comment\n") << _(" C : ICC Profile\n")
<< _(" c : All IPTC data (any broken multiple IPTC blocks)\n")
<< _(" - : Input from stdin\n")
<< _(" -i tgt2 Insert target(s) for the 'insert' action. Possible targets are\n")
<< _(" a : All supported metadata (the default)\n") << _(" e : Exif tags\n")
<< _(" t : Exif thumbnail only (JPEGs only from <file>-thumb.jpg)\n")
<< _(" i : IPTC tags\n") << _(" x : XMP tags\n") << _(" c : JPEG comment\n")
<< _(" C : ICC Profile, from <file>.icc\n") << _(" X : XMP sidecar from file <file>.xmp\n")
<< _(" XX: \"raw\" metadata from <file>.exv. XMP default, optional Exif and IPTC\n")
<< _(" - : Input from stdin\n")
<< _(" -e tgt3 Extract target(s) for the 'extract' action. Possible targets\n")
<< _(" a : All supported metadata (the default)\n") << _(" e : Exif tags\n")
<< _(" t : Exif thumbnail only (to <file>-thumb.jpg)\n") << _(" i : IPTC tags\n")
<< _(" x : XMP tags\n") << _(" c : JPEG comment\n")
<< _(" pN: Extract N'th preview image to <file>-preview<N>.<ext>\n")
<< _(" C : ICC Profile, to <file>.icc\n") << _(" X : XMP sidecar to <file>.xmp\n")
<< _(" XX: \"raw\" metadata to <file>.exv. XMP default, optional Exif and IPTC\n")
<< _(" - : Output to stdin\n")
<< _(" -r fmt Filename format for the 'rename' action. The format string\n")
<< _(" follows strftime(3). The following keywords are also supported:\n")
<< _(" :basename: - original filename without extension\n")
<< _(" :basesuffix: - suffix in original filename, starts with first dot and ends before extension\n")
<< _(" :dirname: - name of the directory holding the original file\n")
<< _(" :parentname: - name of parent directory\n") << _(" Default 'fmt' is %Y%m%d_%H%M%S\n")
<< _(" -c txt JPEG comment string to set in the image.\n")
<< _(" -m cmdf Applies commands in 'cmdf' file, for the modify action (see -M for format).\n")
<< _(" -M cmd Command line for the modify action. The format is:\n")
<< _(" ( (set | add) <key> [[<type>] <value>] |\n") << _(" del <key> [<type>] |\n")
<< _(" reg prefix namespace )\n")
<< _(" -l dir Location (directory) for files to be inserted from or extracted to.\n")
<< _(" -S suf Use suffix 'suf' for source files for insert action.\n") << _("\nExamples:\n")
<< _(" exiv2 -pe image.dng *.jp2\n"
" Print all Exif tags in image.dng and all .jp2 files\n")
<< _(" exiv2 -g date/i https://clanmills.com/Stonehenge.jpg\n"
" Print all tags in file, where key contains 'date' (case insensitive)\n")
<< _(" exiv2 -M\"set Xmp.dc.subject XmpBag Sky\" image.tiff\n"
" Set (or add if missing) value to tag in file\n\n");
} // Params::help
int Params::option(int opt, const std::string& optArg, int optOpt) {
int rc = 0;
switch (opt) {
case 'h':
help_ = true;
break;
case 'V':
version_ = true;
break;
case 'v':
verbose_ = true;
break;
case 'q':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::mute);
break;
case 'Q':
rc = setLogLevel(optArg);
break;
case 'k':
preserve_ = true;
break;
case 'b':
binary_ = true;
break;
case 'u':
unknown_ = false;
break;
case 'f':
force_ = true;
fileExistsPolicy_ = overwritePolicy;
break;
case 'F':
force_ = true;
fileExistsPolicy_ = renamePolicy;
break;
case 'g':
rc = evalGrep(optArg);
break;
case 'K':
rc = evalKey(optArg);
printMode_ = pmList;
break;
case 'n':
charset_ = optArg;
break;
case 'r':
rc = evalRename(opt, optArg);
break;
case 't':
rc = evalRename(opt, optArg);
break;
case 'T':
rc = evalRename(opt, optArg);
break;
case 'a':
rc = evalAdjust(optArg);
break;
case 'Y':
rc = evalYodAdjust(yodYear, optArg);
break;
case 'O':
rc = evalYodAdjust(yodMonth, optArg);
break;
case 'D':
rc = evalYodAdjust(yodDay, optArg);
break;
case 'p':
rc = evalPrint(optArg);
break;
case 'P':
rc = evalPrintFlags(optArg);
break;
case 'd':
rc = evalDelete(optArg);
break;
case 'e':
rc = evalExtract(optArg);
break;
case 'C':
rc = evalExtract(optArg);
break;
case 'i':
rc = evalInsert(optArg);
break;
case 'c':
rc = evalModify(opt, optArg);
break;
case 'm':
rc = evalModify(opt, optArg);
break;
case 'M':
rc = evalModify(opt, optArg);
break;
case 'l':
directory_ = optArg;
break;
case 'S':
suffix_ = optArg;
break;
case ':':
std::cerr << progname() << ": " << _("Option") << " -" << static_cast<char>(optOpt) << " "
<< _("requires an argument\n");
rc = 1;
break;
case '?':
std::cerr << progname() << ": " << _("Unrecognized option") << " -" << static_cast<char>(optOpt) << "\n";
rc = 1;
break;
default:
std::cerr << progname() << ": " << _("getopt returned unexpected character code") << " " << std::hex << opt
<< "\n";
rc = 1;
break;
}
return rc;
} // Params::option
int Params::setLogLevel(const std::string& optArg) {
int rc = 0;
const auto logLevel = static_cast<char>(tolower(optArg[0]));
switch (logLevel) {
case 'd':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::debug);
break;
case 'i':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::info);
break;
case 'w':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::warn);
break;
case 'e':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::error);
break;
case 'm':
Exiv2::LogMsg::setLevel(Exiv2::LogMsg::mute);
break;
default:
std::cerr << progname() << ": " << _("Option") << " -Q: " << _("Invalid argument") << " \"" << optArg << "\"\n";
rc = 1;
break;
}
return rc;
} // Params::setLogLevel
int Params::evalGrep(const std::string& optArg) {
// check that string ends in "/i"
bool bIgnoreCase = optArg.size() > 2 && optArg.back() == 'i' && optArg[optArg.size() - 2] == '/';
auto pattern = bIgnoreCase ? optArg.substr(0, optArg.size() - 2) : optArg;
try {
// use POSIX syntax, optimize for faster matching, treat all sub expressions as unnamed
auto flags = std::regex::basic | std::regex::optimize | std::regex::nosubs;
flags = bIgnoreCase ? flags | std::regex::icase : flags;
// try and emplace regex into vector
// might throw if invalid pattern
greps_.emplace_back(pattern, flags);
} catch (std::regex_error const&) {
// there was an error compiling the regexp
std::cerr << progname() << ": " << _("Option") << " -g: " << _("Invalid regexp") << " \"" << optArg << "\n";
return 1;
}
return 0;
} // Params::evalGrep
int Params::evalKey(const std::string& optArg) {
int result = 0;
keys_.push_back(optArg);
return result;
} // Params::evalKey
int Params::evalRename(int opt, const std::string& optArg) {
int rc = 0;
switch (action_) {
case Action::none:
action_ = Action::rename;
switch (opt) {
case 'r':
format_ = optArg;
formatSet_ = true;
break;
case 't':
timestamp_ = true;
break;
case 'T':
timestampOnly_ = true;
break;
}
break;
case Action::rename:
if (opt == 'r' && (formatSet_ || timestampOnly_)) {
std::cerr << progname() << ": " << _("Ignoring surplus option") << " -r \"" << optArg << "\"\n";
} else {
format_ = optArg;
formatSet_ = true;
}
break;
default:
std::cerr << progname() << ": " << _("Option") << " -" << static_cast<char>(opt) << " "
<< _("is not compatible with a previous option\n");
rc = 1;
break;
}
return rc;
} // Params::evalRename
int Params::evalAdjust(const std::string& optArg) {
int rc = 0;
switch (action_) {
case Action::none:
case Action::adjust:
if (adjust_) {
std::cerr << progname() << ": " << _("Ignoring surplus option -a") << " " << optArg << "\n";
break;
}
action_ = Action::adjust;
adjust_ = parseTime(optArg, adjustment_);
if (!adjust_) {
std::cerr << progname() << ": " << _("Error parsing -a option argument") << " `" << optArg << "'\n";
rc = 1;
}
break;
default:
std::cerr << progname() << ": " << _("Option -a is not compatible with a previous option\n");
rc = 1;
break;
}
return rc;
} // Params::evalAdjust
int Params::evalYodAdjust(const Yod& yod, const std::string& optArg) {
int rc = 0;
switch (action_) {
case Action::none:
case Action::adjust:
if (yodAdjust_[yod].flag_) {
std::cerr << progname() << ": " << _("Ignoring surplus option") << " " << yodAdjust_[yod].option_ << " "
<< optArg << "\n";
break;
}
action_ = Action::adjust;
yodAdjust_[yod].flag_ = true;
if (!Util::strtol(optArg.c_str(), yodAdjust_[yod].adjustment_)) {
std::cerr << progname() << ": " << _("Error parsing") << " " << yodAdjust_[yod].option_ << " "
<< _("option argument") << " `" << optArg << "'\n";
rc = 1;
}
break;
default:
std::cerr << progname() << ": " << _("Option") << " " << yodAdjust_[yod].option_ << " "
<< _("is not compatible with a previous option\n");
rc = 1;
break;
}
return rc;
} // Params::evalYodAdjust
int Params::evalPrint(const std::string& optArg) {
int rc = 0;
switch (action_) {
case Action::none:
switch (optArg[0]) {
case 's':
action_ = Action::print;
printMode_ = pmSummary;
break;
case 'a':
rc = evalPrintFlags("kyct");
break;
case 'e':
rc = evalPrintFlags("Ekycv");
break;
case 't':
rc = evalPrintFlags("Ekyct");
break;
case 'v':
rc = evalPrintFlags("Exgnycv");
break;
case 'h':
rc = evalPrintFlags("Exgnycsh");
break;
case 'i':
rc = evalPrintFlags("Ikyct");
break;
case 'x':
rc = evalPrintFlags("Xkyct");
break;
case 'c':
action_ = Action::print;
printMode_ = pmComment;
break;
case 'p':
action_ = Action::print;
printMode_ = pmPreview;
break;
case 'C':
action_ = Action::print;
printMode_ = pmIccProfile;
break;
case 'R':
#ifdef NDEBUG
std::cerr << progname() << ": " << _("Action not available in Release mode") << ": '" << optArg << "'\n";
rc = 1;
#else
action_ = Action::print;
printMode_ = pmRecursive;
#endif
break;
case 'S':
action_ = Action::print;
printMode_ = pmStructure;
break;
case 'X':
action_ = Action::print;
printMode_ = pmXMP;
break;
default:
std::cerr << progname() << ": " << _("Unrecognized print mode") << " `" << optArg << "'\n";
rc = 1;
break;
}
break;
case Action::print:
std::cerr << progname() << ": " << _("Ignoring surplus option -p") << optArg << "\n";
break;
default:
std::cerr << progname() << ": " << _("Option -p is not compatible with a previous option\n");
rc = 1;
break;
}
return rc;
} // Params::evalPrint
int Params::evalPrintFlags(const std::string& optArg) {
int rc = 0;
switch (action_) {
case Action::none:
action_ = Action::print;
printMode_ = pmList;
for (auto&& i : optArg) {
switch (i) {
case 'E':
printTags_ |= MetadataId::exif;
break;
case 'I':
printTags_ |= MetadataId::iptc;
break;
case 'X':
printTags_ |= MetadataId::xmp;
break;
case 'x':
printItems_ |= prTag;
break;
case 'g':
printItems_ |= prGroup;
break;
case 'k':
printItems_ |= prKey;
break;
case 'l':
printItems_ |= prLabel;
break;
case 'n':
printItems_ |= prName;
break;
case 'y':
printItems_ |= prType;
break;
case 'c':
printItems_ |= prCount;
break;
case 's':
printItems_ |= prSize;
break;
case 'v':
printItems_ |= prValue;
break;
case 't':
printItems_ |= prTrans;
break;
case 'h':
printItems_ |= prHex;
break;
case 'V':
printItems_ |= prSet | prKey | prType | prValue;
break;
case 'd':
printItems_ |= prDesc;
break;
default:
std::cerr << progname() << ": " << _("Unrecognized print item") << " `" << i << "'\n";
rc = 1;
break;
}
}
break;
case Action::print:
std::cerr << progname() << ": " << _("Ignoring surplus option -P") << optArg << "\n";
break;
default:
std::cerr << progname() << ": " << _("Option -P is not compatible with a previous option\n");
rc = 1;
break;
}
return rc;
} // Params::evalPrintFlags
int Params::evalDelete(const std::string& optArg) {
switch (action_) {
case Action::none:
action_ = Action::erase;
target_ = static_cast<CommonTarget>(0);
[[fallthrough]];
case Action::erase: {
const auto rc = parseCommonTargets(optArg, "erase");
if (rc > 0) {
target_ |= static_cast<CommonTarget>(rc);
return 0;
}
return 1;
}
default:
std::cerr << progname() << ": " << _("Option -d is not compatible with a previous option\n");
return 1;
}
} // Params::evalDelete
int Params::evalExtract(const std::string& optArg) {
switch (action_) {
case Action::none:
case Action::modify:
action_ = Action::extract;
target_ = static_cast<CommonTarget>(0);
[[fallthrough]];
case Action::extract: {
const auto rc = parseCommonTargets(optArg, "extract");
if (rc > 0) {
target_ |= static_cast<CommonTarget>(rc);
return 0;
}
return 1;
}
default:
std::cerr << progname() << ": " << _("Option -e is not compatible with a previous option\n");
return 1;
}
} // Params::evalExtract
int Params::evalInsert(const std::string& optArg) {
switch (action_) {
case Action::none:
case Action::modify:
action_ = Action::insert;
target_ = static_cast<CommonTarget>(0);
[[fallthrough]];
case Action::insert: {
const auto rc = parseCommonTargets(optArg, "insert");
if (rc > 0) {
target_ |= static_cast<CommonTarget>(rc);
return 0;
}
return 1;
}
default:
std::cerr << progname() << ": " << _("Option -i is not compatible with a previous option\n");
return 1;
}
} // Params::evalInsert
int Params::evalModify(int opt, const std::string& optArg) {
switch (action_) {
case Action::none:
action_ = Action::modify;
[[fallthrough]];
case Action::modify:
case Action::extract:
case Action::insert:
if (opt == 'c')
jpegComment_ = parseEscapes(optArg);
if (opt == 'm')
cmdFiles_.push_back(optArg); // parse the files later
if (opt == 'M')
cmdLines_.push_back(optArg); // parse the commands later
return 0;
default:
std::cerr << progname() << ": " << _("Option") << " -" << static_cast<char>(opt) << " "
<< _("is not compatible with a previous option\n");
return 1;
}
} // Params::evalModify
int Params::nonoption(const std::string& argv) {
int rc = 0;
bool action = false;
if (first_) {
// The first non-option argument must be the action
first_ = false;
if (argv == "ad" || argv == "adjust") {
if (action_ != Action::none && action_ != Action::adjust) {
std::cerr << progname() << ": " << _("Action adjust is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::adjust;
}
if (argv == "pr" || argv == "print") {
if (action_ != Action::none && action_ != Action::print) {
std::cerr << progname() << ": " << _("Action print is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::print;
}
if (argv == "rm" || argv == "delete") {
if (action_ != Action::none && action_ != Action::erase) {
std::cerr << progname() << ": " << _("Action delete is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::erase;
}
if (argv == "ex" || argv == "extract") {
if (action_ != Action::none && action_ != Action::extract && action_ != Action::modify) {
std::cerr << progname() << ": " << _("Action extract is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::extract;
}
if (argv == "in" || argv == "insert") {
if (action_ != Action::none && action_ != Action::insert && action_ != Action::modify) {
std::cerr << progname() << ": " << _("Action insert is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::insert;
}
if (argv == "mv" || argv == "rename") {
if (action_ != Action::none && action_ != Action::rename) {
std::cerr << progname() << ": " << _("Action rename is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::rename;
}
if (argv == "mo" || argv == "modify") {
if (action_ != Action::none && action_ != Action::modify) {
std::cerr << progname() << ": " << _("Action modify is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::modify;
}
if (argv == "fi" || argv == "fixiso") {
if (action_ != Action::none && action_ != Action::fixiso) {
std::cerr << progname() << ": " << _("Action fixiso is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::fixiso;
}
if (argv == "fc" || argv == "fixcom" || argv == "fixcomment") {
if (action_ != Action::none && action_ != Action::fixcom) {
std::cerr << progname() << ": " << _("Action fixcom is not compatible with the given options\n");
rc = 1;
}
action = true;
action_ = Action::fixcom;
}
if (action_ == Action::none) {
// if everything else fails, assume print as the default action
action_ = Action::print;
}
}
if (!action) {
files_.push_back(argv);
}
return rc;
} // Params::nonoption
static size_t readFileToBuf(FILE* f, Exiv2::DataBuf& buf) {
const int buff_size = 4 * 1028;
std::vector<Exiv2::byte> bytes(buff_size);
size_t nBytes = 0;
bool more{true};
std::array<char, buff_size> buff;
while (more) {
auto n = fread(buff.data(), 1, buff_size, f);
more = n > 0;
if (more) {
bytes.resize(nBytes + n);
std::copy_n(buff.begin(), n, bytes.begin() + nBytes);
nBytes += n;
}
}
if (nBytes) {
buf.alloc(nBytes);
std::copy(bytes.begin(), bytes.end(), buf.begin());
}
return nBytes;
}
void Params::getStdin(Exiv2::DataBuf& buf) {
// copy stdin to stdinBuf
if (stdinBuf.empty()) {
#if defined(_WIN32)
DWORD fdwMode;
_setmode(fileno(stdin), O_BINARY);
Sleep(300);
if (!GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), &fdwMode)) { // failed: stdin has bytes!
#else
// http://stackoverflow.com/questions/34479795/make-c-not-wait-for-user-input/34479916#34479916
fd_set readfds;
FD_ZERO(&readfds);
FD_SET(STDIN_FILENO, &readfds);
timeval timeout = {1, 0}; // yes: set timeout seconds,microseconds
// if we have something in the pipe, read it
if (select(1, &readfds, nullptr, nullptr, &timeout)) {
#endif
#ifdef DEBUG
std::cerr << "stdin has data" << '\n';
#endif
readFileToBuf(stdin, stdinBuf);
}
#ifdef DEBUG
// this is only used to simulate reading from stdin when debugging
// to simulate exiv2 -pX foo.jpg | exiv2 -iXX- bar.jpg
// exiv2 -pX foo.jpg > ~/temp/stdin ; exiv2 -iXX- bar.jpg
if (stdinBuf.empty()) {
const char* path = "/Users/rmills/temp/stdin";
FILE* f = fopen(path, "rb");
if (f) {
readFileToBuf(f, stdinBuf);
fclose(f);
std::cerr << "read stdin from " << path << '\n';
}
}
#endif
#ifdef DEBUG
std::cerr << "getStdin stdinBuf.size_ = " << stdinBuf.size() << '\n';
#endif
}
// copy stdinBuf to buf
if (!stdinBuf.empty()) {
buf.alloc(stdinBuf.size());
std::copy(stdinBuf.begin(), stdinBuf.end(), buf.begin());
}
#ifdef DEBUG