tests/misc/env-S-script.sh

   1 #!/bin/sh
   2 # Test env -S in a #! line of a script.
   3
   4 # Copyright (C) 2018-2019 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19
  20 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  21 print_ver_ env
  22 print_ver_ printf
  23
  24 require_perl_
  25
  26 # a shortcut to avoid long lines
  27 dir="$abs_top_builddir/src"
  28
  29 cat <<EOF > shebang || framework_failure_
  30 #!$SHELL
  31 EOF
  32 cat <<\EOF >> shebang || framework_failure_
  33 # Execute a script as per 3 argument shebang
  34 # but without length limits (127 on Linux for example).
  35 script="$1"; shift
  36 shebang=$(sed -n 's/^#!//p;q' < "$script")
  37 interp=$(printf '%s' "$shebang" | cut -d' ' -f1)
  38 rest=$(printf '%s' "$shebang" | cut -s -d' ' -f2-)
  39 test "$rest" && exec "$interp" "$rest" "$script" "$@"
  40 exec "$interp" "$script" "$@"
  41 EOF
  42 chmod a+x shebang || framework_failure_
  43
  44 # A simple shebang program to call our new "env"
  45 printf "#!$dir/env sh\necho hello\n" > env_test || framework_failure_
  46 chmod a+x env_test || framework_failure_
  47
  48 # Verify we can run the shebang which is not the case if
  49 # there are spaces in $abs_top_builddir.
  50 ./shebang ./env_test || skip_ "Error running env_test script"
  51
  52 # env should execute 'printf' with 7 parameters:
  53 # 'x%sx\n', 'A', 'B' from the "-S" argument,
  54 # the name of the executed script, and its 3 parameters (C,D,'E F').
  55 # Ignoring the absolute paths, the script is:
  56 #     #!env -S printf x%sx\n A B
  57 printf "#!$dir/env -S $dir/printf "'x%%sx\\n A B\n' > env1 || framework_failure_
  58 chmod a+x env1 || framework_failure_
  59 cat<<\EOF>exp1 || framework_failure_
  60 xAx
  61 xBx
  62 x./env1x
  63 xCx
  64 xDx
  65 xE Fx
  66 EOF
  67 ./shebang ./env1 C D "E F" > out1 || fail=1
  68 compare exp1 out1 || fail=1
  69
  70
  71 # similar to the above test but with quotes, the first parameter should be
  72 # 'A B' and not two paramaters 'A','B'.
  73 # Ignoring the absolute paths, the script is:
  74 #     #!env -S printf x%sx\n "A B"
  75 printf "#!$dir/env -S $dir/printf "'x%%sx\\n "A B"\n' > env2 ||
  76   framework_failure_
  77 chmod a+x env2 || framework_failure_
  78 cat<<\EOF>exp2 || framework_failure_
  79 xA Bx
  80 x./env2x
  81 EOF
  82 ./shebang ./env2 > out2 || fail=1
  83 compare exp2 out2 || fail=1
  84
  85
  86 # backslash-underscore instead of spaces.
  87 # Ignoring the absolute paths, the script is:
  88 #     #!env -Sprintf\_x%sx\n\_Y
  89 printf "#!$dir/env -S$dir/printf"'\\_x%%sx\\n\\_Y\n' > env3 ||
  90   framework_failure_
  91 chmod a+x env3 || framework_failure_
  92 cat<<\EOF>exp3 || framework_failure_
  93 xYx
  94 x./env3x
  95 xWx
  96 EOF
  97 ./shebang ./env3 W > out3 || fail=1
  98 compare exp3 out3 || fail=1
  99
 100
 101
 102 # Test comments - The "#C D" should be ignored.
 103 # Ignoring the absolute paths, the script is:
 104 #     #!env -Sprintf x%sx\n A#B #C D
 105 printf "#!$dir/env -S$dir/printf"' x%%sx\\n A#B #C D\n' > env4 \
 106     || framework_failure_
 107 chmod a+x env4 || framework_failure_
 108 cat<<\EOF>exp4 || framework_failure_
 109 xA#Bx
 110 x./env4x
 111 xZx
 112 EOF
 113 ./shebang ./env4 Z > out4 || fail=1
 114 compare exp4 out4 || fail=1
 115
 116
 117 # Test with a simple Perl usage.
 118 # (assume Perl is in $PATH, as it is required for the test suite).
 119 # Ignoring the absolute paths, the script is:
 120 #     #!env -S perl -w -T
 121 #     print "hello\n";
 122 { printf "#!$dir/env -S $PERL -w -T\n" ;
 123   printf 'print "hello\\n";\n' ; } > env5 || framework_failure_
 124 chmod a+x env5 || framework_failure_
 125 cat<<\EOF>exp5 || framework_failure_
 126 hello
 127 EOF
 128 ./shebang ./env5 > out5 || fail=1
 129 compare exp5 out5 || fail=1
 130
 131
 132 # Test with a more complex Perl usage.
 133 # Ignoring the absolute paths, the script is:
 134 #     #!env -S perl -mFile::Basename=basename -e "print basename(\$ARGV[0]);"
 135 # The backslash before the '$' is required to prevent env(1) from treating
 136 # $ARGV as an (invalid syntax) envvar, and pass it as-is to Perl.
 137 { printf "#!$dir/env -S " ;
 138   printf "$PERL -mFile::Basename=basename -e " ;
 139   printf '"print basename(\\$ARGV[0]);"\n' ; } > env6 || framework_failure_
 140 chmod a+x env6 || framework_failure_
 141 # Note: the perl script does not output a newline.
 142 printf "env6" > exp6 || framework_failure_
 143 ./shebang ./env6 > out6 || fail=1
 144 compare exp6 out6 || fail=1
 145
 146
 147 Exit $fail