[osh2oil] Tests for here docs and the 'set' builtin.

Also, add a function to list all tests, and add more to the PASSING
list.

test/osh2oil.sh

@@ -305,7 +305,29 @@ single quoted
'''
OIL

  # TODO: <<-
  # <<- is indented
  osh0-oil3 << 'OSH' 3<< 'OIL'
  cat <<-'ONE'
  indented
  body
  ONE
OSH
  cat << '''
  indented
  body
  '''
OIL

}

here-string() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
cat <<< "double $foo"
cat <<< 'single'
OSH
cat << "double $foo"
cat << 'single'
OIL
}

more-env() {
@@ -326,45 +348,8 @@ env FOO=$(bar) BAR=$[echo hi] echo 2
OIL
}

assign2() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
foo=bar spam="$var"
OSH
setglobal foo = 'bar', spam = $var
OIL

  osh0-oil3 << 'OSH' 3<< 'OIL'
readonly foo=bar spam="${var}"
OSH
const foo = 'bar', spam = $(var)
OIL

  osh0-oil3 << 'OSH' 3<< 'OIL'
f() {
  local foo=bar spam=eggs
  foo=mutated
  g=new
}
OSH
proc f {
  var foo = 'bar', spam = 'eggs'
  set foo = 'mutated'
  setglobal g = 'new'
}
OIL
  return

  # Inside function
  osh0-oil3 << 'OSH' 3<< 'OIL'
f() { foo=bar spam=${var:-default}; }
OSH
proc f { setglobal foo = 'bar', spam = $(var or 'default'); }
OIL

}

# NOTE: This is probably wrong
export-case() {  
export-case() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
export foo=bar spam="${var}/const"
OSH
@@ -456,6 +441,44 @@ proc f {
OIL
}

assign2() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
foo=bar spam="$var"
OSH
setglobal foo = 'bar', spam = $var
OIL

  osh0-oil3 << 'OSH' 3<< 'OIL'
readonly foo=bar spam="${var}"
OSH
const foo = 'bar', spam = $(var)
OIL

  osh0-oil3 << 'OSH' 3<< 'OIL'
f() {
  local foo=bar spam=eggs
  foo=mutated
  g=new
}
OSH
proc f {
  var foo = 'bar', spam = 'eggs'
  set foo = 'mutated'
  setglobal g = 'new'
}
OIL
  return

  # Inside function
  osh0-oil3 << 'OSH' 3<< 'OIL'
f() { foo=bar spam=${var:-default}; }
OSH
proc f { setglobal foo = 'bar', spam = $(var or 'default'); }
OIL

}


array-literal() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
a=(1 2 3)
@@ -494,6 +517,38 @@ not -- echo hi | wc
OIL
}

# 'set' is a keyword in Oil, so the multiple usages of 'set' builtin have to
# become something else.

builtin-set() {
  # option is a keyword like setglobal?  The RHS it optional; defaults to true?
  osh0-oil3 << 'OSH' 3<< 'OIL'
set -o nounset
set +o errexit
OSH
option nounset
option errexit = false
OIL

  # We could do:
  # setoption nounset = true, errexit = false

  # Accept old syntax too
  osh0-oil3 << 'OSH' 3<< 'OIL'
set -o nounset -o pipefail +o errexit
OSH
sh-builtin set -o nounset -o pipefail +o errexit
OIL

  # Mutating the arguments array is discouraged/deprecated in Oil.  Just 
  # make a new first-class array instead of mutating the existing one.
  osh0-oil3 << 'OSH' 3<< 'OIL'
set a b c
OSH
set -- a b c
OIL
}

and-or() {
  osh0-oil3 << 'OSH' 3<< 'OIL'
ls && echo "$@" || die "foo"
@@ -957,6 +1012,8 @@ OIL

readonly -a PASSING=(
  simple-command
  assign
  assign2
  more-env
  line-breaks
  redirect
@@ -991,6 +1048,10 @@ readonly -a PASSING=(
  bracket-builtin
)

list-all-tests() {
  egrep '^[a-z0-9_\-]+\(\) {' $0
}

all-passing() {
  run-all "${PASSING[@]}"
}

tools/osh2oil.py

@@ -1,8 +1,6 @@
from __future__ import print_function
"""
fix.py -- Do source transformations.  Somewhat like 'go fix'.

TODO: Change := to =, and var/const/set
osh2oil.py: Translate OSH to Oil.
"""

import sys