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278 commits

Author SHA1 Message Date
AnotherTest
2b867ff555 Shell: Complete named function parameters inside the function body 2020-09-14 17:40:18 +02:00
AnotherTest
b7661dee46 Shell: Add some tests for functions 2020-09-14 17:40:18 +02:00
AnotherTest
d1550ea64f Shell: Add support for functions 
This implementation does not have support for 'return' yet.
 2020-09-14 17:40:18 +02:00
AnotherTest
519aa2048a Shell: Use a subshell instead of explicitly calling a shell binary in a test 
This commit fixes a FIXME in a test, as we have subshells now.
 2020-09-14 17:40:18 +02:00
AnotherTest
0b57cdff82 Shell: Add support for $0,$1,... 2020-09-14 17:40:18 +02:00
AnotherTest
063fb02ef4 Shell: Move the first command in a pipeline to the pipeline pgid too 
This process is supposed to be the session leader of the pipeline
process group, we can't *not* move it into that group :P
 2020-09-12 21:18:24 +02:00
AnotherTest
927e2fc6bc Shell: Do not reset the terminal attributes when command is run in bg 
Also removes a FIXME that no longer applies.
 2020-09-10 11:20:22 +02:00
AnotherTest
2488815bdb Shell: Add some tests for subshells 2020-09-09 20:35:21 +02:00
AnotherTest
b194d79c53 Shell: Add the (now) free subshell support 2020-09-09 20:35:21 +02:00
AnotherTest
0fd8d5ad3d Shell: Add a test for control structures as commands 2020-09-09 20:35:21 +02:00
AnotherTest
54b453be57 Shell: Fix event loop processing and backgrounding in subshells 2020-09-09 20:35:21 +02:00
AnotherTest
aa2df9277d Shell: Allow control structures to appear in pipe sequences 
This makes commands like the following to be possible:
```sh
$ ls && for $(seq 10) { echo $it }
$ ls | for $(seq 1) { cat > foobar }
```
 2020-09-09 20:35:21 +02:00
AnotherTest
7b5ead64a5 Shell: Announce job events at the right times 
This fixes a duplicate message when running `jobs` for the first time
after a job has been moved to the background.
Also actually announces background exits now :^)
 2020-09-09 20:35:21 +02:00
AnotherTest
715e11f692 Shell: Fix job control and backgrounding 
This patchset makes the shell capable of lazily resolving and executing
sequences of commands, to allow for putting logical sequences in the
background.
In particular, it enables And/Or/Sequence nodes to be run in the background,
and consequently unmarks them as `would_execute`.
Doing so also fixes job control to an extent, as jobs are now capable of
having 'tails', so sequences can be put in the background while
preserving their following sequences.
 2020-09-09 20:35:21 +02:00
asynts
b68a873067 AK: Move memory streams into their own header. 2020-09-01 17:25:26 +02:00
Nico Weber
8b166e57df
Misc: Remove some unneeded includes of Timer.h and ElapsedTimer.h (#3286) 2020-08-25 09:41:56 +02:00
AnotherTest
db18e75a09 Shell: Add tests for 'if' 2020-08-22 20:53:21 +02:00
AnotherTest
b90eb5c9ba Shell: Add 'if' expressions 
```sh
if foo bar baz {
    quux
} else if foobar || whatever {
    echo I ran out of example words
} else {
    exit 2
}
```
 2020-08-22 20:53:21 +02:00
AnotherTest
103f659ef6 Shell: Actually process for loop entries as a stream 
This actually does what d4bcc68 meant to do.
 2020-08-22 20:52:07 +02:00
AnotherTest
2c14abedd6 Shell: Do not flatten syntactic lists in for_each_entry() 2020-08-22 20:52:07 +02:00
AnotherTest
0676bd4afc Shell: Mark AST::Background as would_execute if its subnode does 2020-08-22 20:52:07 +02:00
AnotherTest
30554c969c LibLine: Handle interrupts/window size changes internally 2020-08-21 16:10:51 +02:00
AnotherTest
238e87de4e LibLine: Handle Ctrl-C and Ctrl-D in a way similar to other line editors 
Makes C-c print "^C" and continue prompting on a new line.
Also fixes a problem where an interrupted get_line() would need more
read()'s than required to update the display.
 2020-08-21 16:10:51 +02:00
AnotherTest
d4bcc689fb Shell: Make 'for' loops read their input as an stream 
i.e. process an element as it becomes available.
 2020-08-21 16:00:42 +02:00
AnotherTest
cf18bff72a Shell: Do not attempt to yank the TTY from background processes 
They don't own the TTY anyway!
 2020-08-19 21:21:34 +02:00
AnotherTest
217eca3d3f Shell: Name the pipe ends correctly 2020-08-19 21:21:34 +02:00
AnotherTest
20d4287eaf Shell: Fix outdated debug log code 2020-08-19 21:21:34 +02:00
AnotherTest
4ee4c94d60 Shell: Respect the 'PROMPT_EOL_MARK' environment variable 
This allows the users to customise what is shown when a command ends
without a newline.
 2020-08-18 16:58:17 +02:00
AnotherTest
d0aab41628 LibLine: Read configuration from a config file 2020-08-18 12:07:32 +02:00
AnotherTest
14a54a72fa Shell: Ensure that the cursor starts on a new line 
And print an indicator when it doesn't, a la zsh.
 2020-08-17 17:44:02 +02:00
AnotherTest
154ffa3f5f Shell: Add some tests for builtin redirection 2020-08-15 20:48:17 +02:00
AnotherTest
c589625418 Shell: Allow redirections and pipes on builtins 
Fixes #3072.
 2020-08-15 20:48:17 +02:00
AnotherTest
d9a1cb440c Shell: Restore input offset when failing to parse a redirection 
This fixes #3051
 2020-08-14 14:51:31 +02:00
AnotherTest
0950fd1438 Shell: Start writing a man page 
This patch adds two man pages describing the parts of the shell that
have been so far finalised.
 2020-08-14 10:31:52 +02:00
Nico Weber
924951e426 Shell: Add test for 37d5e3e0df / #3073 2020-08-13 18:45:39 +02:00
Andreas Kling
85b02d887b Shell: Add create() factory function for PathRedirection 2020-08-12 12:15:30 +02:00
Andreas Kling
e8d665337a Shell: Fix another FdRedirection reference leak 
Add a create() factory function to prevent this from happening again.
 2020-08-12 12:13:33 +02:00
AnotherTest
2b51250863 Shell: Wait for the parent to deal with the PGID stuff before execvp() 2020-08-12 11:41:18 +02:00
AnotherTest
be395aab9a Shell: Do not assume that the job has exited after unblock in fg 2020-08-12 11:41:18 +02:00
AnotherTest
7aa5a2bc0f Shell: Eliminate possible use-after-free in builtin_fg() 
This fixes a possible UAF where the job might be destroyed in
block_on_job().
 2020-08-12 11:41:18 +02:00
AnotherTest
1dc5574245 Shell: Eliminate reference leak in AST::Execute::run() 2020-08-12 11:41:18 +02:00
AnotherTest
ab3e787334 Shell: Moves pipelined processes to one process group 2020-08-12 11:41:18 +02:00
AnotherTest
8a17527bc5 Shell: Show the job id instead of the pid when a job exits in background 2020-08-12 11:41:18 +02:00
Nico Weber
37d5e3e0df Shell: Fix fd leak with pipes 
Fixes the problem reported in #3073. While trying to write a test
for this, I thought I'd use

    Shell -c 'for i in $(seq 100) { echo $i }' | head -n 1

but that makes the cpu spin at 100% and doesn't terminate even
with this fix here. But at least piping disasm into head now works.
 2020-08-10 20:57:38 +02:00
AnotherTest
69fc91d974 Shell: Cancel a running for loop upon receiving any non-SIGINT signal 
And keep the old behaviour of needing two interruptions on SIGINT.
 2020-08-10 20:50:06 +02:00
AnotherTest
9fde92db38 Shell: Make redirections without commands apply to all future commands 
This restirects redirection-only commands' scope, and keeps their
usefulness too!
 2020-08-09 21:50:33 +02:00
AnotherTest
5ae2f6e9ec Shell: Stop a for loop upon receiving two consecutive interruptions 
This does not work perfectly (just like every other shell...), if the
running program handles the signal (SIGINT in this case) and quits
cleanly, the shell cannot detect the interruption.
This is the case with our `sleep(1)`.
 2020-08-09 21:08:07 +02:00
Andreas Kling
3b3d158649 Shell: Make Command::redirections a NonnullRefPtrVector 2020-08-07 09:42:12 +02:00
Andreas Kling
c29681cb03 Shell: Make VariableDeclarations::Variable store NonnullRefPtrs 2020-08-07 09:41:04 +02:00
Andreas Kling
e9c602bc83 Shell: Make resolve_without_cast() return NonnullRefPtr<Value> 2020-08-07 09:36:15 +02:00