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| 1 | +# Copyright 2021 Free Software Foundation, Inc. |
| 2 | + |
| 3 | +# This program is free software; you can redistribute it and/or modify |
| 4 | +# it under the terms of the GNU General Public License as published by |
| 5 | +# the Free Software Foundation; either version 3 of the License, or |
| 6 | +# (at your option) any later version. |
| 7 | +# |
| 8 | +# This program is distributed in the hope that it will be useful, |
| 9 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | +# GNU General Public License for more details. |
| 12 | +# |
| 13 | +# You should have received a copy of the GNU General Public License |
| 14 | +# along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | + |
| 16 | +# GDB reads some environment variables on startup, make sure it behaves |
| 17 | +# correctly if these variables are defined but empty. |
| 18 | + |
| 19 | +set all_env_vars { HOME XDG_CACHE_HOME LOCALAPPDATA XDG_CONFIG_HOME } |
| 20 | + |
| 21 | +# Record the initial value of the index-cache directory. |
| 22 | +clean_restart |
| 23 | +set index_cache_directory "" |
| 24 | +gdb_test_multiple "show index-cache directory" "" { |
| 25 | + -re -wrap "The directory of the index cache is \"(.*)\"\\." { |
| 26 | + set index_cache_directory $expect_out(1,string) |
| 27 | + set index_cache_directory [string_to_regexp $index_cache_directory] |
| 28 | + pass $gdb_test_name |
| 29 | + } |
| 30 | +} |
| 31 | + |
| 32 | +foreach_with_prefix env_var_name $all_env_vars { |
| 33 | + # Restore the original state of the environment variable. |
| 34 | + save_vars env($env_var_name) { |
| 35 | + set env($env_var_name) {} |
| 36 | + clean_restart |
| 37 | + |
| 38 | + # Verify that the empty environment variable didn't affect the |
| 39 | + # index-cache directory setting, that we still see the initial value. |
| 40 | + # "HOME" is different, because if that one is unset, GDB isn't even |
| 41 | + # able to compute the default location. In that case, we expect it to |
| 42 | + # be empty. |
| 43 | + if { $env_var_name == "HOME" } { |
| 44 | + gdb_test "show index-cache directory" \ |
| 45 | + "The directory of the index cache is \"\"\\." |
| 46 | + } else { |
| 47 | + gdb_test "show index-cache directory" \ |
| 48 | + "The directory of the index cache is \"$index_cache_directory\"\\." |
| 49 | + } |
| 50 | + } |
| 51 | +} |
| 52 | + |
| 53 | +# Try the same, but with all the env vars set to an empty value at the same |
| 54 | +# time. |
| 55 | +with_test_prefix "all env vars" { |
| 56 | + set save_vars_arg {} |
| 57 | + foreach env_var_name $all_env_vars { |
| 58 | + lappend save_vars_arg env($env_var_name) |
| 59 | + } |
| 60 | + |
| 61 | + # Restore the original state of all the environment variables. |
| 62 | + save_vars $save_vars_arg { |
| 63 | + foreach env_var_name $all_env_vars { |
| 64 | + set env($env_var_name) {} |
| 65 | + } |
| 66 | + |
| 67 | + clean_restart |
| 68 | + |
| 69 | + gdb_test "show index-cache directory" \ |
| 70 | + "The directory of the index cache is \"\"\\." |
| 71 | + } |
| 72 | +} |
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