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https://github.com/fish-shell/fish-shell
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e66f6878b5
This is somewhat subtle:
The #RUN line in a littlecheck file will be run by a posix shell,
which means the substitutions will also be mangled by it.
Now, we *have* shell-quoted them, but unfortunately what we need is to
quote them for inside a pre-existing layer of quotes, e.g.
# RUN: fish -C 'set -g fish %fish'
here, %fish can't be replaced with `'path with spaces/fish'`, because
that ends up as
# RUN: fish -C 'set -g fish 'path with spaces/fish''
which is just broken.
So instead, we pass it as a variable to that fish:
# RUN: fish=%fish fish...
In addition, we need to not mangle the arguments in our test_driver.
For that, because we insist on posix shell, which has only one array,
and we source a file, we *need* to stop having that file use
arguments.
Which is okay - test_env.sh could previously be used to start a test,
and now it no longer can because that is test_*driver*.sh's job.
For the interactive tests, it's slightly different:
pexpect.spawn(foo) is sensitive to shell metacharacters like space.
So we shell-quote it.
But if you pass any args to pexpect.spawn, it no longer uses a shell,
and so we cannot shell-quote it.
There could be a better way to fix this?
82 lines
3.1 KiB
Bash
Executable file
82 lines
3.1 KiB
Bash
Executable file
# vim: set ts=4 sw=4 tw=100 et:
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# This script sets up a clean environment for a script or executable to execute in/under. It creates
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# (and sets) $TMPDIR initialized to a clean & unique temporary directory, creates a new $HOME, sets
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# the relevant XDG_* directories to point to subdirectories of that $HOME, cleans up any potentially
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# problematic environment variables, executes the provided command, waits for it to exit, then
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# cleans up the newly created environment before bubbling up the exit code. $PWD is not changed.
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# If sourced instead of executed, sets up the environment as before but does not execute any payload
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# and does not destroy the newly created environment.
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# macOS has really weird default IFS behavior that splits output in random places, and the trailing
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# backspace is to prevent \n from being gobbled up by the subshell output substitution.
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# Folks, this is why you should use fish!
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IFS="$(printf "\n\b")"
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# set -ex
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die() {
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if test "$#" -ge 0; then
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printf "%s\n" "$@" 1>&2
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fi
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exit 1
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}
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# Set up a test environment to run the specified target under. We do not share environments
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# whatsoever between tests, so each test driver run sets up a new profile altogether.
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# macOS 10.10 requires an explicit template for `mktemp` and will create the folder in the
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# current directory unless told otherwise. Linux isn't guaranteed to have $TMPDIR set.
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homedir="$(mktemp -d 2>/dev/null || mktemp -d "${TMPDIR}tmp.XXXXXXXXXX")"
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export HOME="$homedir"
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XDG_DATA_HOME="$homedir/xdg_data_home"
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export XDG_DATA_HOME
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mkdir -p $XDG_DATA_HOME/fish || die
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XDG_CONFIG_HOME="$homedir/xdg_config_home"
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export XDG_CONFIG_HOME
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mkdir -p $XDG_CONFIG_HOME/fish || die
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XDG_RUNTIME_DIR="$homedir/xdg_runtime_dir"
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export XDG_RUNTIME_DIR
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mkdir -p $XDG_RUNTIME_DIR/fish || die
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chmod 700 "$XDG_RUNTIME_DIR"
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XDG_CACHE_HOME="$homedir/xdg_cache_home"
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export XDG_CACHE_HOME
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mkdir -p $XDG_CACHE_HOME/fish || die
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# Create a temp/scratch directory for tests to use, if they want (tests shouldn't write to a
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# shared temp folder).
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TMPDIR="$homedir/temp"
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mkdir ${TMPDIR}
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export TMPDIR
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# Set locale information for consistent tests. Fish should work with a lot of locales but the
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# tests assume an english UTF-8 locale unless they explicitly override this default. We do not
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# want the users locale to affect the tests since they might, for example, change the wording of
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# logged messages.
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#
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# TODO: set LANG to en_US.UTF-8 so we test the locale message conversions (i.e., gettext).
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unset LANGUAGE
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# Remove "LC_" env vars from the test environment
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for key in $(env | grep -E "^LC_"| grep -oE "^[^=]+"); do
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unset "$key"
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done
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# Set the desired lang/locale tests are hard-coded against
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export LANG="C"
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export LC_CTYPE="en_US.UTF-8"
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# These env vars should not be inherited from the user environment because they can affect the
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# behavior of the tests. So either remove them or set them to a known value.
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# See also tests/interactive.fish.
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export TERM=xterm
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unset COLORTERM
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unset KONSOLE_PROFILE_NAME
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unset KONSOLE_VERSION
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unset PANTHEON_TERMINAL_ID
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unset LC_TERMINAL
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unset LC_TERMINAL_VERSION
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unset TERM_PROGRAM
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unset TERM_PROGRAM_VERSION
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unset VTE_VERSION
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