| 1 | #!/usr/bin/env python2
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| 2 | """Flag_def.py."""
|
| 3 | from __future__ import print_function
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| 4 |
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| 5 | from frontend import args
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| 6 | from frontend.flag_spec import (FlagSpec, FlagSpecAndMore, _FlagSpecAndMore)
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| 7 | from frontend import option_def
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| 8 |
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| 9 | #
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| 10 | # Definitions for builtin_assign
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| 11 | #
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| 12 |
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| 13 | EXPORT_SPEC = FlagSpec('export_')
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| 14 | EXPORT_SPEC.ShortFlag('-n')
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| 15 | EXPORT_SPEC.ShortFlag('-f') # stubbed
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| 16 | EXPORT_SPEC.ShortFlag('-p')
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| 17 |
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| 18 | READONLY_SPEC = FlagSpec('readonly')
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| 19 |
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| 20 | # TODO: Check the consistency of -a and -A against values, here and below.
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| 21 | READONLY_SPEC.ShortFlag('-a')
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| 22 | READONLY_SPEC.ShortFlag('-A')
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| 23 | READONLY_SPEC.ShortFlag('-p')
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| 24 |
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| 25 | NEW_VAR_SPEC = FlagSpec('new_var')
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| 26 |
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| 27 | # print stuff
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| 28 | NEW_VAR_SPEC.ShortFlag('-f')
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| 29 | NEW_VAR_SPEC.ShortFlag('-F')
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| 30 | NEW_VAR_SPEC.ShortFlag('-p')
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| 31 |
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| 32 | NEW_VAR_SPEC.ShortFlag('-g') # Look up in global scope
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| 33 |
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| 34 | # Options +r +x +n
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| 35 | NEW_VAR_SPEC.PlusFlag('x') # export
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| 36 | NEW_VAR_SPEC.PlusFlag('r') # readonly
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| 37 | NEW_VAR_SPEC.PlusFlag('n') # named ref
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| 38 |
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| 39 | # Common between readonly/declare
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| 40 | NEW_VAR_SPEC.ShortFlag('-a')
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| 41 | NEW_VAR_SPEC.ShortFlag('-A')
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| 42 | NEW_VAR_SPEC.ShortFlag('-i') # no-op for integers
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| 43 |
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| 44 | UNSET_SPEC = FlagSpec('unset')
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| 45 | UNSET_SPEC.ShortFlag('-v')
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| 46 | UNSET_SPEC.ShortFlag('-f')
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| 47 | #UNSET_SPEC.ShortFlag('-z', args.String)
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| 48 |
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| 49 | #
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| 50 | # Definitions for builtin_meta
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| 51 | #
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| 52 |
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| 53 | # Unused because there are no flags! Just --.
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| 54 | EVAL_SPEC = FlagSpec('eval')
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| 55 | SOURCE_SPEC = FlagSpec('source')
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| 56 | SOURCE_SPEC.LongFlag('--builtin')
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| 57 |
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| 58 | COMMAND_SPEC = FlagSpec('command')
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| 59 | COMMAND_SPEC.ShortFlag('-v')
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| 60 | COMMAND_SPEC.ShortFlag('-V')
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| 61 | COMMAND_SPEC.ShortFlag('-p')
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| 62 |
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| 63 | TYPE_SPEC = FlagSpec('type')
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| 64 | TYPE_SPEC.ShortFlag('-f')
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| 65 | TYPE_SPEC.ShortFlag('-t')
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| 66 | TYPE_SPEC.ShortFlag('-p')
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| 67 | TYPE_SPEC.ShortFlag('-P')
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| 68 | TYPE_SPEC.ShortFlag('-a')
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| 69 |
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| 70 | #
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| 71 | # Definitions for builtin_pure
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| 72 | #
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| 73 |
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| 74 | ALIAS_SPEC = FlagSpec('alias') # no flags yet
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| 75 | UNALIAS_SPEC = FlagSpec('unalias') # no flags yet
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| 76 |
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| 77 | SHOPT_SPEC = FlagSpec('shopt')
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| 78 | SHOPT_SPEC.ShortFlag('-s', long_name='--set')
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| 79 | SHOPT_SPEC.ShortFlag('-u', long_name='--unset')
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| 80 | SHOPT_SPEC.ShortFlag('-o') # use 'set -o' names
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| 81 | # TODO: --print could print in a verbose format. (Annoying: codegen conflicts
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| 82 | # with Python keyword.)
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| 83 | SHOPT_SPEC.ShortFlag('-p')
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| 84 | SHOPT_SPEC.ShortFlag('-q') # query option settings
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| 85 |
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| 86 | HASH_SPEC = FlagSpec('hash')
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| 87 | HASH_SPEC.ShortFlag('-r')
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| 88 |
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| 89 | ECHO_SPEC = FlagSpec('echo')
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| 90 | ECHO_SPEC.ShortFlag('-e') # no backslash escapes
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| 91 | ECHO_SPEC.ShortFlag('-n')
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| 92 |
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| 93 | #
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| 94 | # osh/builtin_printf.py
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| 95 | #
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| 96 |
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| 97 | PRINTF_SPEC = FlagSpec('printf')
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| 98 | PRINTF_SPEC.ShortFlag('-v', args.String)
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| 99 |
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| 100 | #
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| 101 | # osh/builtin_misc.py
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| 102 | #
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| 103 |
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| 104 | READ_SPEC = FlagSpec('read')
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| 105 | READ_SPEC.ShortFlag('-r')
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| 106 | READ_SPEC.ShortFlag('-s') # silent
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| 107 | READ_SPEC.ShortFlag('-u', args.Int) # file descriptor
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| 108 | READ_SPEC.ShortFlag('-t', args.Float) # timeout
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| 109 | READ_SPEC.ShortFlag('-n', args.Int)
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| 110 | READ_SPEC.ShortFlag('-N', args.Int)
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| 111 | READ_SPEC.ShortFlag('-a', args.String) # name of array to read into
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| 112 | READ_SPEC.ShortFlag('-d', args.String)
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| 113 | READ_SPEC.ShortFlag('-p', args.String) # prompt
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| 114 |
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| 115 | # YSH extensions
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| 116 | READ_SPEC.ShortFlag('-0') # until NUL, like -r -d ''
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| 117 | READ_SPEC.LongFlag('--all')
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| 118 | READ_SPEC.LongFlag('--line')
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| 119 | READ_SPEC.LongFlag('--num-bytes', args.Int)
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| 120 | # don't strip the trailing newline
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| 121 | READ_SPEC.LongFlag('--with-eol')
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| 122 | READ_SPEC.LongFlag('--json',
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| 123 | args.Bool,
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| 124 | default=False,
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| 125 | help='Read elements as JSON strings')
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| 126 | READ_SPEC.LongFlag('--j8',
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| 127 | args.Bool,
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| 128 | default=False,
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| 129 | help='Read elements as J8 strings')
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| 130 |
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| 131 | MAPFILE_SPEC = FlagSpec('mapfile')
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| 132 | MAPFILE_SPEC.ShortFlag('-t')
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| 133 |
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| 134 | CD_SPEC = FlagSpec('cd')
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| 135 | CD_SPEC.ShortFlag('-L')
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| 136 | CD_SPEC.ShortFlag('-P')
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| 137 |
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| 138 | PUSHD_SPEC = FlagSpec('pushd')
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| 139 |
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| 140 | POPD_SPEC = FlagSpec('popd')
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| 141 |
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| 142 | DIRS_SPEC = FlagSpec('dirs')
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| 143 | DIRS_SPEC.ShortFlag('-c')
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| 144 | DIRS_SPEC.ShortFlag('-l')
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| 145 | DIRS_SPEC.ShortFlag('-p')
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| 146 | DIRS_SPEC.ShortFlag('-v')
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| 147 |
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| 148 | PWD_SPEC = FlagSpec('pwd')
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| 149 | PWD_SPEC.ShortFlag('-L')
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| 150 | PWD_SPEC.ShortFlag('-P')
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| 151 |
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| 152 | HELP_SPEC = FlagSpec('help')
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| 153 | #HELP_SPEC.ShortFlag('-i') # show index
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| 154 | # Note: bash has help -d -m -s, which change the formatting
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| 155 |
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| 156 | HISTORY_SPEC = FlagSpec('history')
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| 157 | HISTORY_SPEC.ShortFlag('-a')
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| 158 | HISTORY_SPEC.ShortFlag('-r')
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| 159 | HISTORY_SPEC.ShortFlag('-c')
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| 160 | HISTORY_SPEC.ShortFlag('-d', args.Int)
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| 161 |
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| 162 | #
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| 163 | # osh/builtin_process.py
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| 164 | #
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| 165 |
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| 166 | EXEC_SPEC = FlagSpec('exec')
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| 167 |
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| 168 | WAIT_SPEC = FlagSpec('wait')
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| 169 | WAIT_SPEC.ShortFlag('-n')
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| 170 |
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| 171 | TRAP_SPEC = FlagSpec('trap')
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| 172 | TRAP_SPEC.ShortFlag('-p')
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| 173 | TRAP_SPEC.ShortFlag('-l')
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| 174 |
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| 175 | JOB_SPEC = FlagSpec('jobs')
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| 176 | JOB_SPEC.ShortFlag('-l', help='long format')
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| 177 | JOB_SPEC.ShortFlag('-p', help='prints PID only')
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| 178 | JOB_SPEC.LongFlag('--debug', help='display debug info')
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| 179 |
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| 180 | #
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| 181 | # FlagSpecAndMore
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| 182 | #
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| 183 |
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| 184 | #
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| 185 | # set and shopt
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| 186 | #
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| 187 |
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| 188 |
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| 189 | def _AddShellOptions(spec):
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| 190 | # type: (_FlagSpecAndMore) -> None
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| 191 | """Shared between 'set' builtin and the shell's own arg parser."""
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| 192 | spec.InitOptions()
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| 193 | spec.InitShopt()
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| 194 |
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| 195 | for opt in option_def.All():
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| 196 | if opt.builtin == 'set':
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| 197 | spec.Option(opt.short_flag, opt.name)
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| 198 | # Notes:
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| 199 | # - shopt option don't need to be registered; we validate elsewhere
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| 200 | # - 'interactive' Has a cell for internal use, but isn't allowed to be
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| 201 | # modified.
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| 202 |
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| 203 |
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| 204 | MAIN_SPEC = FlagSpecAndMore('main')
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| 205 |
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| 206 | MAIN_SPEC.ShortFlag('-c', args.String,
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| 207 | quit_parsing_flags=True) # command string
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| 208 | MAIN_SPEC.LongFlag('--help')
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| 209 | MAIN_SPEC.LongFlag('--version')
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| 210 |
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| 211 | # --tool ysh-ify, etc.
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| 212 | # default is ''
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| 213 | #
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| 214 | # More ideas for tools
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| 215 | # undefined-vars - a static analysis pass
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| 216 | # parse-glob - to debug parsing
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| 217 | # parse-printf
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| 218 | MAIN_SPEC.LongFlag('--tool', [
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| 219 | 'tokens', 'lossless-cat', 'syntax-tree', 'fmt', 'ysh-ify', 'deps', 'cat-em'
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| 220 | ])
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| 221 |
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| 222 | MAIN_SPEC.ShortFlag('-i') # interactive
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| 223 | MAIN_SPEC.ShortFlag('-l') # login - currently no-op
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| 224 | MAIN_SPEC.LongFlag('--login') # login - currently no-op
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| 225 | MAIN_SPEC.LongFlag('--headless') # accepts ECMD, etc.
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| 226 |
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| 227 | # TODO: -h too
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| 228 | # the output format when passing -n
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| 229 | MAIN_SPEC.LongFlag(
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| 230 | '--ast-format',
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| 231 | ['text', 'abbrev-text', 'html', 'abbrev-html', 'oheap', 'none'],
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| 232 | default='abbrev-text')
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| 233 |
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| 234 | # Defines completion style.
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| 235 | MAIN_SPEC.LongFlag('--completion-display', ['minimal', 'nice'], default='nice')
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| 236 | # TODO: Add option for YSH prompt style? RHS prompt?
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| 237 |
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| 238 | MAIN_SPEC.LongFlag('--completion-demo')
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| 239 |
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| 240 | # Debugging feature only. $SH -n won't reparse a[x+1] and ``. Note that $SH
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| 241 | # --tool automatically turns it on.
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| 242 | MAIN_SPEC.LongFlag('--do-lossless')
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| 243 |
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| 244 | MAIN_SPEC.LongFlag('--print-status') # TODO: Replace with a shell hook
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| 245 | MAIN_SPEC.LongFlag('--debug-file', args.String)
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| 246 | MAIN_SPEC.LongFlag('--xtrace-to-debug-file')
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| 247 |
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| 248 | # This flag has is named like bash's equivalent. We got rid of --norc because
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| 249 | # it can simply by --rcfile /dev/null.
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| 250 | MAIN_SPEC.LongFlag('--rcfile', args.String)
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| 251 | MAIN_SPEC.LongFlag('--rcdir', args.String)
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| 252 | MAIN_SPEC.LongFlag('--norc')
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| 253 |
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| 254 | # e.g. to pass data on stdin but pretend that it came from a .hay file
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| 255 | MAIN_SPEC.LongFlag('--location-str', args.String)
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| 256 | MAIN_SPEC.LongFlag('--location-start-line', args.Int)
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| 257 |
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| 258 | _AddShellOptions(MAIN_SPEC)
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| 259 |
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| 260 | SET_SPEC = FlagSpecAndMore('set')
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| 261 | _AddShellOptions(SET_SPEC)
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| 262 |
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| 263 | #
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| 264 | # Types for completion
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| 265 | #
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| 266 |
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| 267 |
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| 268 | def _DefineCompletionFlags(spec):
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| 269 | # type: (_FlagSpecAndMore) -> None
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| 270 | spec.ShortFlag('-F', args.String, help='Complete with this function')
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| 271 | spec.ShortFlag('-W', args.String, help='Complete with these words')
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| 272 | spec.ShortFlag('-C',
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| 273 | args.String,
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| 274 | help='Complete with stdout lines of this command')
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| 275 |
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| 276 | spec.ShortFlag(
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| 277 | '-P',
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| 278 | args.String,
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| 279 | help=
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| 280 | 'Prefix is added at the beginning of each possible completion after '
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| 281 | 'all other options have been applied.')
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| 282 | spec.ShortFlag('-S',
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| 283 | args.String,
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| 284 | help='Suffix is appended to each possible completion after '
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| 285 | 'all other options have been applied.')
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| 286 | spec.ShortFlag('-X',
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| 287 | args.String,
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| 288 | help='''
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| 289 | A glob pattern to further filter the matches. It is applied to the list of
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| 290 | possible completions generated by the preceding options and arguments, and each
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| 291 | completion matching filterpat is removed from the list. A leading ! in
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| 292 | filterpat negates the pattern; in this case, any completion not matching
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| 293 | filterpat is removed.
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| 294 | ''')
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| 295 |
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| 296 |
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| 297 | def _DefineCompletionOptions(spec):
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| 298 | # type: (_FlagSpecAndMore) -> None
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| 299 | """Common -o options for complete and compgen."""
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| 300 | spec.InitOptions()
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| 301 |
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| 302 | # bashdefault, default, filenames, nospace are used in git
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| 303 | spec.Option2('bashdefault',
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| 304 | help='If nothing matches, perform default bash completions')
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| 305 | spec.Option2(
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| 306 | 'default',
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| 307 | help="If nothing matches, use readline's default filename completion")
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| 308 | spec.Option2(
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| 309 | 'filenames',
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| 310 | help="The completion function generates filenames and should be "
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| 311 | "post-processed")
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| 312 | spec.Option2('dirnames',
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| 313 | help="If nothing matches, perform directory name completion")
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| 314 | spec.Option2(
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| 315 | 'nospace',
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| 316 | help="Don't append a space to words completed at the end of the line")
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| 317 | spec.Option2(
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| 318 | 'plusdirs',
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| 319 | help="After processing the compspec, attempt directory name completion "
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| 320 | "and return those matches.")
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| 321 |
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| 322 |
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| 323 | def _DefineCompletionActions(spec):
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| 324 | # type: (_FlagSpecAndMore) -> None
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| 325 | """Common -A actions for complete and compgen."""
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| 326 |
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| 327 | # NOTE: git-completion.bash uses -f and -v.
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| 328 | # My ~/.bashrc on Ubuntu uses -d, -u, -j, -v, -a, -c, -b
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| 329 | spec.InitActions()
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| 330 | spec.Action('a', 'alias')
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| 331 | spec.Action('b', 'binding')
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| 332 | spec.Action('c', 'command')
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| 333 | spec.Action('d', 'directory')
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| 334 | spec.Action('f', 'file')
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| 335 | spec.Action('j', 'job')
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| 336 | spec.Action('u', 'user')
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| 337 | spec.Action('v', 'variable')
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| 338 | spec.Action(None, 'builtin')
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| 339 | spec.Action(None, 'function')
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| 340 | spec.Action(None, 'helptopic') # help
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| 341 | spec.Action(None, 'setopt') # set -o
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| 342 | spec.Action(None, 'shopt') # shopt -s
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| 343 | spec.Action(None, 'signal') # kill -s
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| 344 | spec.Action(None, 'stopped')
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| 345 |
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| 346 |
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| 347 | COMPLETE_SPEC = FlagSpecAndMore('complete')
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| 348 |
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| 349 | _DefineCompletionFlags(COMPLETE_SPEC)
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| 350 | _DefineCompletionOptions(COMPLETE_SPEC)
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| 351 | _DefineCompletionActions(COMPLETE_SPEC)
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| 352 |
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| 353 | COMPLETE_SPEC.ShortFlag('-E', help='Define the compspec for an empty line')
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| 354 | COMPLETE_SPEC.ShortFlag(
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| 355 | '-D', help='Define the compspec that applies when nothing else matches')
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| 356 |
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| 357 | # I would like this to be less compatible
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| 358 | # Field name conflicts with 'print' keyword
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| 359 | #COMPLETE_SPEC.LongFlag(
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| 360 | # '--print', help='Print spec')
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| 361 |
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| 362 | COMPGEN_SPEC = FlagSpecAndMore('compgen') # for -o and -A
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| 363 |
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| 364 | # TODO: Add -l for COMP_LINE. -p for COMP_POINT ?
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| 365 | _DefineCompletionFlags(COMPGEN_SPEC)
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| 366 | _DefineCompletionOptions(COMPGEN_SPEC)
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| 367 | _DefineCompletionActions(COMPGEN_SPEC)
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| 368 |
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| 369 | COMPOPT_SPEC = FlagSpecAndMore('compopt') # for -o
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| 370 | _DefineCompletionOptions(COMPOPT_SPEC)
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| 371 |
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| 372 | COMPADJUST_SPEC = FlagSpecAndMore('compadjust')
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| 373 |
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| 374 | COMPADJUST_SPEC.ShortFlag(
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| 375 | '-n',
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| 376 | args.String,
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| 377 | help=
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| 378 | 'Do NOT split by these characters. It omits them from COMP_WORDBREAKS.')
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| 379 | COMPADJUST_SPEC.ShortFlag('-s',
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| 380 | help='Treat --foo=bar and --foo bar the same way.')
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| 381 |
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| 382 | COMPEXPORT_SPEC = FlagSpecAndMore('compexport')
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| 383 |
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| 384 | COMPEXPORT_SPEC.ShortFlag('-c',
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| 385 | args.String,
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| 386 | help='Shell string to complete, like sh -c')
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| 387 |
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| 388 | COMPEXPORT_SPEC.LongFlag('--begin',
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| 389 | args.Int,
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| 390 | help='Simulate readline begin index into line buffer')
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| 391 |
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| 392 | COMPEXPORT_SPEC.LongFlag('--end',
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| 393 | args.Int,
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| 394 | help='Simulate readline end index into line buffer')
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| 395 |
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| 396 | # jlines is an array of strings with NO header line
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| 397 | # TSV8 has a header line. It can have flag descriptions and other data.
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| 398 | COMPEXPORT_SPEC.LongFlag('--format', ['jlines', 'tsv8'],
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| 399 | default='jlines',
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| 400 | help='Output format')
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| 401 |
|
| 402 | #
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| 403 | # Pure YSH
|
| 404 | #
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| 405 |
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| 406 | TRY_SPEC = FlagSpec('try_')
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| 407 | TRY_SPEC.LongFlag('--assign',
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| 408 | args.String,
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| 409 | help='Assign status to this variable, and return 0')
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| 410 |
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| 411 | ERROR_SPEC = FlagSpec('error')
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| 412 |
|
| 413 | BOOLSTATUS_SPEC = FlagSpec('boolstatus')
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| 414 |
|
| 415 | # Future directions:
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| 416 | # run --builtin, run --command, run --proc:
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| 417 | # to "replace" 'builtin' and # 'command'
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| 418 |
|
| 419 | APPEND_SPEC = FlagSpec('append')
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| 420 |
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| 421 | SHVAR_SPEC = FlagSpec('shvar')
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| 422 | #SHVAR_SPEC.Flag('-temp', args.String,
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| 423 | # help='Push a NAME=val binding')
|
| 424 | #SHVAR_SPEC.Flag('-env', args.String,
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| 425 | # help='Push a NAME=val binding and set the -x flag')
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| 426 |
|
| 427 | CTX_SPEC = FlagSpec('ctx')
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| 428 |
|
| 429 | PP_SPEC = FlagSpec('pp')
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| 430 |
|
| 431 | SHVM_SPEC = FlagSpec('shvm')
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| 432 |
|
| 433 | # --verbose?
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| 434 | FORK_SPEC = FlagSpec('fork')
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| 435 | FORKWAIT_SPEC = FlagSpec('forkwait')
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| 436 |
|
| 437 | # Might want --list at some point
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| 438 | MODULE_SPEC = FlagSpec('module')
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| 439 |
|
| 440 | RUNPROC_SPEC = FlagSpec('runproc')
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| 441 | RUNPROC_SPEC.ShortFlag('-h', args.Bool, help='Show all procs')
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| 442 |
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| 443 | WRITE_SPEC = FlagSpec('write')
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| 444 | WRITE_SPEC.LongFlag('--sep',
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| 445 | args.String,
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| 446 | default='\n',
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| 447 | help='Characters to separate each argument')
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| 448 | WRITE_SPEC.LongFlag('--end',
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| 449 | args.String,
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| 450 | default='\n',
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| 451 | help='Characters to terminate the whole invocation')
|
| 452 | WRITE_SPEC.ShortFlag('-n',
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| 453 | args.Bool,
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| 454 | help="Omit newline (synonym for -end '')")
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| 455 | # Do we need these two?
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| 456 | WRITE_SPEC.LongFlag('--json',
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| 457 | args.Bool,
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| 458 | default=False,
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| 459 | help='Write elements as JSON strings(lossy)')
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| 460 | WRITE_SPEC.LongFlag('--j8',
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| 461 | args.Bool,
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| 462 | default=False,
|
| 463 | help='Write elements as J8 strings')
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| 464 | # TODO: --jlines for conditional j"" prefix? Like maybe_shell_encode()
|
| 465 |
|
| 466 | # Legacy that's not really needed with J8 notation. The = operator might use a
|
| 467 | # separate pretty printer that shows \u{3bc}
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| 468 | #
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| 469 | # x means I want \x00
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| 470 | # u means I want \u{1234}
|
| 471 | # raw is utf-8
|
| 472 | if 0:
|
| 473 | WRITE_SPEC.LongFlag(
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| 474 | '--unicode', ['raw', 'u', 'x'],
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| 475 | default='raw',
|
| 476 | help='Encode QSN with these options. '
|
| 477 | 'x assumes an opaque byte string, while raw and u try to '
|
| 478 | 'decode UTF-8.')
|
| 479 |
|
| 480 | PUSH_REGISTERS_SPEC = FlagSpec('push-registers')
|
| 481 |
|
| 482 | FOPEN_SPEC = FlagSpec('fopen')
|
| 483 |
|
| 484 | #
|
| 485 | # JSON
|
| 486 | #
|
| 487 |
|
| 488 | JSON_WRITE_SPEC = FlagSpec('json_write')
|
| 489 |
|
| 490 | # TODO: --compact is probably better
|
| 491 | # --pretty=F is like JSON.stringify(d, null, 0)
|
| 492 | JSON_WRITE_SPEC.LongFlag('--pretty',
|
| 493 | args.Bool,
|
| 494 | default=True,
|
| 495 | help='Whitespace in output (default true)')
|
| 496 |
|
| 497 | # Unused:
|
| 498 | # JSON has the questionable decision of allowing (unpaired) surrogate like
|
| 499 | # \udc00.
|
| 500 | # When encoding, we try to catch the error on OUR side, rather than letting it
|
| 501 | # travel over the wire. But you can disable this.
|
| 502 | JSON_WRITE_SPEC.LongFlag(
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| 503 | '--surrogate-ok',
|
| 504 | args.Bool,
|
| 505 | default=False,
|
| 506 | help='Invalid UTF-8 can be encoded as surrogate like \\udc00')
|
| 507 |
|
| 508 | JSON_WRITE_SPEC.LongFlag('--indent',
|
| 509 | args.Int,
|
| 510 | default=2,
|
| 511 | help='Indent JSON by this amount')
|
| 512 |
|
| 513 | JSON_READ_SPEC = FlagSpec('json_read')
|