--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sat_frontends/jp/cmd_input.py	Mon Apr 02 19:44:50 2018 +0200
@@ -0,0 +1,227 @@
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+# jp: a SàT command line tool
+# Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import base
+from sat.core.i18n import _
+from sat.core import exceptions
+from sat_frontends.jp.constants import Const as C
+from sat.tools.common.ansi import ANSI as A
+import subprocess
+import argparse
+import sys
+
+__commands__ = ["Input"]
+OPT_STDIN = 'stdin'
+OPT_SHORT = 'short'
+OPT_LONG = 'long'
+OPT_POS = 'positional'
+OPT_IGNORE = 'ignore'
+OPT_TYPES = (OPT_STDIN, OPT_SHORT, OPT_LONG, OPT_POS, OPT_IGNORE)
+OPT_EMPTY_SKIP = 'skip'
+OPT_EMPTY_IGNORE = 'ignore'
+OPT_EMPTY_CHOICES = (OPT_EMPTY_SKIP, OPT_EMPTY_IGNORE)
+
+
+class InputCommon(base.CommandBase):
+
+    def __init__(self, host, name, help):
+        base.CommandBase.__init__(self, host, name, use_verbose=True, use_profile=False, help=help)
+        self.idx = 0
+        self.reset()
+
+    def reset(self):
+        self.args_idx = 0
+        self._stdin = []
+        self._opts = []
+        self._pos = []
+        self._values_ori = []
+
+    def add_parser_options(self):
+        self.parser.add_argument("--encoding", default='utf-8', help=_(u"encoding of the input data"))
+        self.parser.add_argument("-i", "--stdin", action='append_const', const=(OPT_STDIN, None), dest='arguments', help=_(u"standard input"))
+        self.parser.add_argument("-s", "--short", type=self.opt(OPT_SHORT), action='append', dest='arguments', help=_(u"short option"))
+        self.parser.add_argument("-l", "--long", type=self.opt(OPT_LONG), action='append', dest='arguments', help=_(u"long option"))
+        self.parser.add_argument("-p", "--positional", type=self.opt(OPT_POS), action='append', dest='arguments', help=_(u"positional argument"))
+        self.parser.add_argument("-x", "--ignore", action='append_const', const=(OPT_IGNORE, None), dest='arguments', help=_(u"ignore value"))
+        self.parser.add_argument("-D", "--debug", action='store_true', help=_(u"don't actually run commands but echo what would be launched"))
+        self.parser.add_argument("--log", type=argparse.FileType('wb'), help=_(u"log stdout to FILE"))
+        self.parser.add_argument("--log-err", type=argparse.FileType('wb'), help=_(u"log stderr to FILE"))
+        self.parser.add_argument("command", nargs=argparse.REMAINDER)
+
+    def opt(self, type_):
+        return lambda s: (type_, s)
+
+    def addValue(self, value):
+        """add a parsed value according to arguments sequence"""
+        self._values_ori.append(value)
+        arguments = self.args.arguments
+        try:
+            arg_type, arg_name = arguments[self.args_idx]
+        except IndexError:
+            self.disp(_(u"arguments in input data and in arguments sequence don't match"), error=True)
+            self.host.quit(C.EXIT_DATA_ERROR)
+        self.args_idx += 1
+        while self.args_idx < len(arguments):
+            next_arg = arguments[self.args_idx]
+            if next_arg[0] not in OPT_TYPES:
+                # value will not be used if False or None, so we skip filter
+                if value not in (False, None):
+                    # we have a filter
+                    filter_type, filter_arg = arguments[self.args_idx]
+                    value = self.filter(filter_type, filter_arg, value)
+            else:
+                break
+            self.args_idx += 1
+
+        if value is None:
+            # we ignore this argument
+            return
+
+        if value is False:
+            # we skip the whole row
+            if self.args.debug:
+                self.disp(A.color(C.A_SUBHEADER, _(u'values: '), A.RESET, u', '.join(self._values_ori)), 2)
+                self.disp(A.color(A.BOLD, _(u'**SKIPPING**\n')))
+            self.reset()
+            self.idx += 1
+            raise exceptions.CancelError
+
+        if not isinstance(value, list):
+            value = [value]
+
+        for v in value:
+            if arg_type == OPT_STDIN:
+                self._stdin.append(v.encode('utf-8'))
+            elif arg_type == OPT_SHORT:
+                self._opts.append('-{}'.format(arg_name))
+                self._opts.append(v.encode('utf-8'))
+            elif arg_type == OPT_LONG:
+                self._opts.append('--{}'.format(arg_name))
+                self._opts.append(v.encode('utf-8'))
+            elif arg_type == OPT_POS:
+                self._pos.append(v.encode('utf-8'))
+            elif arg_type == OPT_IGNORE:
+                pass
+            else:
+                self.parser.error(_(u"Invalid argument, an option type is expected, got {type_}:{name}").format(
+                                  type_=arg_type, name=arg_name))
+
+    def runCommand(self):
+        """run requested command with parsed arguments"""
+        if self.args_idx != len(self.args.arguments):
+            self.disp(_(u"arguments in input data and in arguments sequence don't match"), error=True)
+            self.host.quit(C.EXIT_DATA_ERROR)
+        self.disp(A.color(C.A_HEADER, _(u'command {idx}').format(idx=self.idx)), no_lf=not self.args.debug)
+        stdin = ''.join(self._stdin)
+        if self.args.debug:
+            self.disp(A.color(C.A_SUBHEADER, _(u'values: '), A.RESET, u', '.join(self._values_ori)), 2)
+
+            if stdin:
+                self.disp(A.color(C.A_SUBHEADER, u'--- STDIN ---'))
+                self.disp(stdin.decode('utf-8'))
+                self.disp(A.color(C.A_SUBHEADER, u'-------------'))
+            self.disp(u'{indent}{prog} {static} {options} {positionals}'.format(
+                indent = 4*u' ',
+                prog=sys.argv[0],
+                static = ' '.join(self.args.command).decode('utf-8'),
+                options = u' '.join([o.decode('utf-8') for o in self._opts]),
+                positionals = u' '.join([p.decode('utf-8') for p in self._pos])
+                ))
+            self.disp(u'\n')
+        else:
+            self.disp(u' (' + u', '.join(self._values_ori) + u')', 2, no_lf=True)
+            args = [sys.argv[0]] + self.args.command + self._opts + self._pos
+            p = subprocess.Popen(args,
+                                  stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            (stdout, stderr) = p.communicate(stdin)
+            log = self.args.log
+            log_err = self.args.log_err
+            log_tpl = '{command}\n{buff}\n\n'
+            if log:
+                log.write(log_tpl.format(command=' '.join(args), buff=stdout))
+            if log_err:
+                log_err.write(log_tpl.format(command=' '.join(args), buff=stderr))
+            ret = p.wait()
+            if ret == 0:
+                self.disp(A.color(C.A_SUCCESS, _(u'OK')))
+            else:
+                self.disp(A.color(C.A_FAILURE, _(u'FAILED')))
+
+        self.reset()
+        self.idx += 1
+
+    def filter(self, filter_type, filter_arg, value):
+        """change input value
+
+        @param filter_type(unicode): name of the filter
+        @param filter_arg(unicode, None): argument of the filter
+        @param value(unicode): value to filter
+        @return (unicode, False, None): modified value
+            False to skip the whole row
+            None to ignore this argument (but continue row with other ones)
+        """
+        raise NotImplementedError
+
+
+class Csv(InputCommon):
+
+    def __init__(self, host):
+        super(Csv, self).__init__(host, 'csv', _(u'comma-separated values'))
+
+    def add_parser_options(self):
+        InputCommon.add_parser_options(self)
+        self.parser.add_argument("-r", "--row", type=int, default=0, help=_(u"starting row (previous ones will be ignored)"))
+        self.parser.add_argument("-S", "--split", action='append_const', const=('split', None), dest='arguments', help=_(u"split value in several options"))
+        self.parser.add_argument("-E", "--empty", action='append', type=self.opt('empty'), dest='arguments',
+                                 help=_(u"action to do on empty value ({choices})").format(choices=u', '.join(OPT_EMPTY_CHOICES)))
+
+    def filter(self, filter_type, filter_arg, value):
+        if filter_type == 'split':
+            return value.split()
+        elif filter_type == 'empty':
+            if filter_arg == OPT_EMPTY_IGNORE:
+                return value if value else None
+            elif filter_arg == OPT_EMPTY_SKIP:
+                return value if value else False
+            else:
+                self.parser.error(_(u"--empty value must be one of {choices}").format(choices=u', '.join(OPT_EMPTY_CHOICES)))
+
+        super(Csv, self).filter(filter_type, filter_arg, value)
+
+    def start(self):
+        import csv
+        reader = csv.reader(sys.stdin)
+        for idx, row in enumerate(reader):
+            try:
+                if idx < self.args.row:
+                    continue
+                for value in row:
+                    self.addValue(value.decode(self.args.encoding))
+                self.runCommand()
+            except exceptions.CancelError:
+                # this row has been cancelled, we skip it
+                continue
+
+
+class Input(base.CommandBase):
+    subcommands = (Csv,)
+
+    def __init__(self, host):
+        super(Input, self).__init__(host, 'input', use_profile=False, help=_(u'launch command with external input'))