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To have clear `./xonsh` directory with the list of components we need to
move common packages that are not components of xonsh to lib directory.
cc #5538
I see that `lib.os` and `lib.subprocess` have a bit different intention.
I think more clearer will be put them to `xonsh.api`. This is the first
step to #5383.
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Added test.
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* Added py mention to docs
* Added tests
* Microfix
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Fix#5491:
* fix condition
* added more well organized tests
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After #5491 there is one case unfixed:
### Before
```xsh
echo 'echo home' >> ~/.xonshrc
cd /tmp
echo 'echo script' > 1.xsh
xonsh 1.xsh
# all rc without ~/.xonshrc
# script
xonsh -i 1.xsh
# all rc without ~/.xonshrc # bug
# script
```
### After
```xsh
echo 'echo home' >> ~/.xonshrc
cd /tmp
echo 'echo script' > 1.xsh
xonsh 1.xsh
# all rc without ~/.xonshrc
# script
xonsh -i 1.xsh
# all rc with ~/.xonshrc
# home # FIX
# script
```
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### Motivation
In #5099 was introduced the logic where all RC files are loaded in
interactive and non-interactive modes. This logic is not working good
for home based `~/.xonshrc` file.
First of all `~/.xonshrc` is the buffer/accumulator of settings focused
on interactive mode. Most tools with integration with xonsh (e.g.
`conda`, `zoxide`, etc) offer to just do `echo "init_tool()" >>
~/.xonshrc` (`conda` has around 20 lines of init code) to start using
the tool and users are doing this without any doubts.
But because of after 5099 `~/.xonshrc` is executed in non-interactive
mode the adding code to it leads to unexpected and unintended side
effects:
* If you run a script with shebang (e.g. `#!/usr/bin/env xonsh` or
[xonsh-awesome-cli-app](https://github.com/anki-code/xonsh-awesome-cli-app))
or just from `xonsh script.xsh` the code will be unexpected and
unintended slower.
* If you're using xonsh-based tools (e.g. you install them using pip)
and run them in environment that has no packages that initiated in
`~/.xonshrc` you will see epic errors.
* Additional context:
* Bash and Zsh do not load `~/.bashrc` and `~/.zshrc` in non-interactive
mode by the same reasons.
* We have welcome message `Create ~/.xonshrc file manually or use xonfig
to suppress the welcome message` and we don't want to make the process
of creating this file complex.
All of this leads to bad unexpected and unintended experience. This PR
is to fix this.
### Expectation
By doing this fix we assume that experienced user who wants to build
good repeatable run control files will use another ways to create config
files and this has [reflection in
docs](8860f2bd52/docs/xonshrc.rst).
In the nutshell if you want to create the RC files that affect every run
of code you should use one or many of these ways:
* Cross-desktop group (XDG) compliant `~/.config/xonsh/rc.xsh` control
file.
* The system-wide control file `/etc/xonsh/xonshrc` for Linux and OSX
and in `%ALLUSERSPROFILE%\xonsh\xonshrc` on Windows. It controls options
that are applied to all users of Xonsh on a given system.
* The home-based directory `~/.config/xonsh/rc.d/` and system
`/etc/xonsh/rc.d/` can contain .xsh files. They will be executed at
startup in order. This allows for drop-in configuration where your
configuration can be split across scripts and common and local
configurations more easily separated.
In your configs you need to check `$XONSH_INTERACTIVE` and
`$XONSH_LOGIN` explicitly.
### Before
`~/.xonshrc` is used in non-interactive mode.
```xsh
echo "echo RC" >> ~/.xonshrc
cd /tmp
echo "echo Script" > script.xsh
xonsh script.xsh
# RC
# Script
```
```xsh
cd /tmp
echo 'echo RC' >> ~/.xonshrc
echo '#!/usr/bin/env xonsh' > myscript
chmod +x myscript
./myscript
# RC
```
### After
`~/.xonshrc` is not used in non-interactive mode. Use `-i` if you need
it.
```xsh
echo "echo RC" >> ~/.xonshrc
cd /tmp
echo "echo Script" > script.xsh
xonsh script.xsh
# Script
xonsh -i script.xsh
# RC
# Script
```
```xsh
cd /tmp
echo 'echo RC' >> ~/.xonshrc
echo '#!/usr/bin/env xonsh' > myscript
chmod +x myscript
./myscript
```
Closes#5488#4096#5496
### Fun
I want to leave here some nice representation of how it works in
bash/sh/zsh from [twitter
post](https://twitter.com/paxx39/status/1742768007154479109):
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previously, this succeeded in CI, but always failed locally with the
following error:
```xsh
_____________________________________________________________________ test_raise_subproc_error_with_show_traceback[True] _____________________________________________________________________
monkeypatch = <_pytest.monkeypatch.MonkeyPatch object at 0x76f6ba8882e0>, interactive = True
@skip_if_on_windows
@pytest.mark.parametrize("interactive", [True, False])
def test_raise_subproc_error_with_show_traceback(monkeypatch, interactive):
out, err, ret = run_xonsh(
"$COLOR_RESULTS=False\n$RAISE_SUBPROC_ERROR=False\n$XONSH_SHOW_TRACEBACK=False\nls nofile",
interactive=interactive,
single_command=True,
)
assert ret != 0
> assert re.match("ls.*No such file or directory\n", out)
E assert None
E + where None = <function match at 0x76f6bcd0cd30>('ls.*No such file or directory\n', "\x1b]0;ls | jyn@pop-os: ~/src/xonsh | xonsh\x07ls: cannot access 'nofile': No such file or directory\n")
E + where <function match at 0x76f6bcd0cd30> = re.match
tests/test_integrations.py:1190: AssertionError
```
the problem was that the following string was prepended before the error
message:
```
\x1b]0;ls | jyn@pop-os: ~/src/xonsh | xonsh\x07l
```
that in turn came from
[`BaseShell.settitle`](66c0490d37/xonsh/base_shell.py (L570)),
which always prepends at least the escape codes even when TITLE is set
to an empty string.
avoid this issue by mimicking a dumb terminal in tests, in which case
`settitle` doesn't add any title at all.
see
https://xonsh.zulipchat.com/#narrow/stream/435069-xonsh-dev/topic/Running.20tests.20locally
for more context.
<!---
Thanks for opening a PR on xonsh!
Please do this:
1. Include a news file with your PR
(https://xon.sh/devguide.html#changelog).
2. Add the documentation for your feature into `/docs`.
3. Add the example of usage or before-after behavior.
4. Mention the issue that this PR is addressing e.g. `#1234`.
-->
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Reading stop signals from the process and update the process state.
### The issue
Technically. In a couple of places that critical for processing signals
we have `os.waitpid()`. The function behavior is pretty unobvious and
one of things is processing return code after catching the signal. We
had no good signal processing around this and this PR fixes this. See
also `proc_untraced_waitpid` function description.
From user perspective. For example we have process that is waiting for
user input from terminal e.g. `python -c "input()"` or `fzf`. If this
process will be in captured pipeline e.g. `!(echo 1 | fzf | head)` it
will be suspended by OS and the pipeline will be in the endless loop
with future crashing and corrupting std at the end. This PR fixes this.
### The solution
Technically. The key function is `proc_untraced_waitpid` - it catches
the stop signals and updates the process state.
From user perspective. First of all we expect that users will use
captured object `!()` only for capturable processes. Because of it our
goal here is to just make the behavior in this case stable.
In this PR we detect that process in the pipeline is suspended and we
need to finish the command pipeline carefully:
* Show the message about suspended process.
* Keep suspended process in `jobs`. The same behavior we can see in
bash. This is good because we don't know what process suspended and why.
May be experienced user will want to continue it manually.
* Finish the CommandPipeline with returncode=None and suspended=True.
### Before
```xsh
!(fzf) # or !(python -c "input()")
# Hanging / Exceptions / OSError / No way to end the command.
# After exception:
$(echo 1)
# OSError / IO error
```
### After
```xsh
!(fzf) # or `!(ls | fzf | head)` or `!(python -c "input()")`
# Process ['fzf'] with pid 60000 suspended with signal 22 SIGTTOU and stay in `jobs`.
# This happends when process start waiting for input but there is no terminal attached in captured mode.
# CommandPipeline(returncode=None, suspended=True, ...)
$(echo 1)
# Success.
```
Closes#4752#4577
### Notes
* There is pretty edge case situation when the process was terminated so
fast that we can't catch pid alive and check signal
([src](67d672783d/xonsh/jobs.py (L71-L80))).
I leave it as is for now.
### Mentions
#2159
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### Before
Case 1: Handler catches the exit signal and do not pass it forward. As
result xonsh could be suspended by OS or crash. Also exit code is wrong.
See repeatable examples with SIGHUP in
https://github.com/xonsh/xonsh/issues/5381#issuecomment-2097961804.
Case 2: From bash/zsh as login shell run xonsh. Then send quit signal to
xonsh. The terminal state will be broken: disabled SIGINT, mouse pointer
produces mouse state codes.
### After
Case 1: Xonsh exit normally with right exit code. Fixed#5381#5304#5371.
Case 2: After exiting with right exit code the state of the terminal is
good.
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### Before
Case 1:
```xsh
xonsh --no-rc --no-env -DCOLOR_OUTPUT 0 # space between -DVAR and VALUE
```
```xsh
Traceback (most recent call last):
File "/Users/pc/.local/xonsh-env/lib/python3.12/site-packages/xonsh/main.py", line 478, in main
args = premain(argv)
^^^^^^^^^^^^^
File "/Users/pc/.local/xonsh-env/lib/python3.12/site-packages/xonsh/main.py", line 420, in premain
env.update([x.split("=", 1) for x in args.defines])
File "<frozen _collections_abc>", line 987, in update
ValueError: not enough values to unpack (expected 2, got 1)
Xonsh encountered an issue during launch
```
Case 2:
```xsh
xonsh --no-rc --no-env -DXONSH_HISTORY_BACKEND=dummy
history info
# json # EXPECTED: dummy
```
### After
Case 1:
```xsh
xonsh --no-rc --no-env -DCOLOR_OUTPUT 0
# Wrong format for -DCOLOR_OUTPUT argument. Use -DVAR=VAL form.
```
Case 2:
```xsh
xonsh --no-rc --no-env -DXONSH_HISTORY_BACKEND=dummy
history info
# dummy
```
Closes#5395
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Fixed#5387
### Before
```xsh
$XONSH_SHOW_TRACEBACK = False
$RAISE_SUBPROC_ERROR = True
ls nofile
# ls: nofile: No such file or directory
# Traceback (most recent call last):
# File "<stdin>", line 1, in <module>
#
```
### After
```xsh
$RAISE_SUBPROC_ERROR = False
$XONSH_SHOW_TRACEBACK = False
ls nofile
# ls: nofile: No such file or directory
$RAISE_SUBPROC_ERROR = True
$XONSH_SHOW_TRACEBACK = False
ls nofile
# ls: nofile: No such file or directory
# subprocess.CalledProcessError: Command '['ls', 'nofile']' returned non-zero exit status 1.
$RAISE_SUBPROC_ERROR = True
$XONSH_SHOW_TRACEBACK = True
ls nofile
# ls: nofile: No such file or directory
# Traceback (most recent call last):
# ...
# subprocess.CalledProcessError: Command '['ls', 'nofile']' returned non-zero exit status 1.
$RAISE_SUBPROC_ERROR = False
$XONSH_SHOW_TRACEBACK = True
ls nofile
# ls: nofile: No such file or directory
```
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### Motivation
* To have an ability to manage the output format added ``$XONSH_SUBPROC_OUTPUT_FORMAT`` to switch the way to return the output lines. Default ``stream_lines`` to return text. Alternative ``list_lines`` to return the list of lines. Also supported custom lambda function.
* Additionally the [proposal to change default behavior](https://github.com/xonsh/xonsh/pull/5377#discussion_r1587627131) for a single line case.
* Closes#3924 as soft solution.
### Before
```xsh
mkdir -p /tmp/tst && cd /tmp/tst && touch 1 2 3
$(ls)
# '1\n2\n3\n'
id $(whoami)
# id: ‘pc\n’: no such user: Invalid argument
du $(ls)
# du: cannot access '1'$'\n''2'$'\n''3'$'\n': No such file or directory
ls $(fzf)
# ls: cannot access 'FUNDING.yml'$'\n': No such file or directory
```
### After
```xsh
mkdir -p /tmp/tst && cd /tmp/tst && touch 1 2 3
$XONSH_SUBPROC_OUTPUT_FORMAT = 'list_lines'
$(ls)
# ['1', '2', '3']
[f for f in $(ls)]
# ['1', '2', '3']
id $(whoami)
# uid=501(user) gid=20(staff)
du $(ls)
# 0 1
# 0 2
# 0 3
ls $(fzf)
# FUNDING.yml
# etc
mkdir -p /tmp/@($(whoami))/dir
cat /etc/passwd | grep $(whoami)
```
### Notes
* It will be good to improve parser for cases like `mkdir -p /tmp/$(whoami)/dir`. PR is welcome!
* I named the default mode as `stream_lines` (instead of just `stream` or `raw`) because in fact we transform raw output into stream of lines and possibly reduce the length of output ([replacing `\r\n` to `\n`](c3a12b2a9c/xonsh/procs/pipelines.py (L380-L383))). May be some day we need to add raw "stream" output format.
* Now anybody can implement bash `IFS` behavior in [bashisms](https://github.com/xonsh/xontrib-bashisms).
---------
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* Fix parsing of redirect tokens
In the parser, wrap redirect tokens such as ">", "a>", and "2>1" in a
tuple (along with the name of the redirect file, if applicable) to
differentiate them from regular command line arguments.
This ensures that a command like ![echo ">"] is parsed correctly.
We now need 2 types of IO-redirect tokens (IOREDIRECT1 and IOREDIRECT2)
so that the parser knows whether or not an IO-redirect has a file
argument. For example, "a>" has type IOREDIRECT1, whereas "2>1" has
type IOREDIRECT2.
* update ioredir tests
* add tests
* add news
* fix multiple redirections error message
* [pre-commit.ci] pre-commit autoupdate
updates:
- [github.com/astral-sh/ruff-pre-commit: v0.0.278 → v0.0.280](https://github.com/astral-sh/ruff-pre-commit/compare/v0.0.278...v0.0.280)
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* fix: ruff linter errors
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* Make job control task queue thread-local
This allows callable aliases to maintain a separate task queue from the
main thread.
* Make job control dictionary thread-local
Use XSH.all_jobs for the main thread and a separate dictionary for other
threads. This allows callable aliases to keep track of their jobs
separate from the main thread.
* Implement use_main_jobs() context manager
This allows threaded commands like jobs, disown, and bg to handle the
main thread's job control
* Run commands in the same process group if in a thread
* Fix tests that use jobs and tasks
* Add tests for subprocess call inside alias
* Add news
* Remove type declarations for _jobs_thread_local
Fixes the mypy error: "Type cannot be declared in assignment to non-self attribute"
Co-authored-by: Noorhteen Raja NJ <jnoortheen@gmail.com>
* feat: better stacktraces
* reraise SystemExit to enable proper exit codes and maintain old
behaviour in repl
* dont ignore exceptions when loading rc-files
* update tests with new SyntaxError formatting, new behavior that main
does not throw user exceptions
* pull return out of finally (flake8, B012)
* hide XonshError traces, fix mypy error, enable circumvention of trace suppression
with XONSH_DEBUG in non-interactive use
* fix mypy error
Co-authored-by: Alexander Firbas <alexander.firbas@gmail.com>
* environ: Implement InternalEnvironDict for thread-local overrides
* environ: Make `swap` thread-safe without leaks
Use thread-local storage to override the changes.
This way the changes can't leak to other threads.
* environ: Implement 'get/set_swapped_values' to pass to threads
* procs: Use swapped values in threaded subprocs
This is so the thread will use the same swapped values as the origin one.
* news: Add env-swap-thread-safety
* Use full paths when launching processes on Windows
Addresses issue #3763.
* Add news item
* Suppress stderr from "which"
* Replace xonsh.xoreutils.which with shutil.which
* Use existing resolved binary location
* Ensure PATHEXT mock is not overwritten
* Add tests for running excutables on windows
* Ensure we don't set overwrite command when binary_loc is none
* tweak tests
* Revert "Ensure PATHEXT mock is not overwritten"
This reverts commit ce5d6ac091.
* Use monkeypatch for chdir
Co-authored-by: Morten Lund <melund@gmail.com>
* tests: Run tests with the amalgamated xonsh
* tests: Test xonsh loads correctly interactively
* tests: Ensure tests run from amalgamated xonsh
* environ: Separate $XONSH_DEBUG and $XONSH_NO_AMALGAMATE
* tests: Keep XONSH_NO_AMALGAMATE in a comment for ease of debugging
* tests: Fix monkeypatch for amalgamated code
* refactor: remove usage of global variables in abbrevs.py
* chore: add flake8-mutable to prevent mutable defaults
* fix: abbrevs expand test
* refactor: add xonsh session singleton
* refactor: fix circular errors when using xonshSession as singleton
* refactor: remove black magicked builtin attributes
* style: black format tests as well
* refactor: update tests to use xonsh-session singleton
* refactor: update abbrevs to not use builtins
* test: remove DummyCommandsCache and patch orig class
* fix: failing test_command_completers
* test: use monkeypatch to update xession fixture
* fix: failing test_pipelines
* fix: failing test_main
* chore: run test suit as single invocation
* test: fix tests/test_xonsh.xsh
* refactor: remove builtins from docs/conf.py
* fix: mypy error in jobs
* fix: test error from test_main
* test: close xession error in test_command_completers
* chore: use pytest-cov for reporting coverage
this will include subprocess calls, and will increase coverage
* style:
