mirror of
https://github.com/hymkor/lispect.git
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161 lines
5.6 KiB
Markdown
161 lines
5.6 KiB
Markdown
[](https://pkg.go.dev/github.com/hymkor/lispect)
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Lispect
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=======
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- A text-terminal automation tool similar to [expect(1)] of UNIX and Linux
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- It runs on Windows 10 and later, and Linux
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- The script is written in the subset of [ISLisp] ([gmnlisp])
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[expect(1)]: https://linux.die.net/man/1/expect
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**example.lsp**
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$ `lispect example.lsp USERNAME@DOMAIN PASSWORD`
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→ login `USERNAME@DOMAIN` with `ssh` and input `PASSWORD` automatically
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```example.lsp
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(catch 'fail
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(if (< (length ARGV) 2)
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(progn
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(format (error-output) "Usage: ~A ~A USERNAME@DOMAIN PASSWORD~%" EXECUTABLE-NAME PROGRAM-NAME)
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(throw 'fail nil)))
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(let ((account (car ARGV))
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(password (cadr ARGV))
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(sshpid nil))
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(with-handler
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(lambda (c)
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(format (error-output) "ssh is not found~%")
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(throw 'fail nil))
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(setq sshpid (spawn "ssh" account)))
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(expect*
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("[fingerprint])?"
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(sendln "yes")
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(expect "password:")
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(sendln password))
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("password:"
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(sendln password))
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(("Connection refused"
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"Could not resolve hostname")
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(throw 'fail nil))
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(30
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(format (error-output) "TIME OUT~%")
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(throw 'fail nil)))
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(expect*
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("Permission denied"
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(expect "password:")
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(send #\U3)
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(wait sshpid)
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(throw 'fail nil)
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)
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("$ "))
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(sendln "echo YOU CAN CALL SOME COMMAND HERE")
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(expect "$ ")
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(sendln "exit")
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(wait sshpid)
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)
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)
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```
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Install
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-------
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Download the binary package from [Releases](https://github.com/hymkor/lispect/releases) and extract the executable.
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### go install
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```
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go install github.com/hymkor/lispect@latest
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```
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### scoop-installer
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```
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scoop install https://raw.githubusercontent.com/hymkor/lispect/master/lispect.json
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```
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or
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```
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scoop bucket add hymkor https://github.com/hymkor/scoop-bucket
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scoop install lispect
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```
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Functions and variables
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-----------------------
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Parameters enclosed in curly braces {...} are optional and can be omitted.
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- `(send {'interval MS} "STRING")`
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- Send STRING to the terminal
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- Specify the `'interval MS` option to make the program wait MS milliseconds before outputting each character
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- `(sendln {'interval MS} "STRING")`
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- send STRING and Enter-key to the terminal
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- `(expect {'timeout SEC} "STRING-0" "STRING-1" ...)`
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- Wait until STRINGs are found on the terminal
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- When STRING-n is found on the terminal, it will return n
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- If a timeout occurs after SEC seconds have elapsed, it returns -1
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- `(expect* ("STRING-0" COMMANDS-0...) ("STRING-1"...)... (SEC COMMANDS-FOR-TIMEOUT...))`
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- When STRING-n is found on the terminal, COMMANDS-n will be executed
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- After SEC seconds have elapsed, COMMANDS-FOR-TIMEOUT will be executed
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- `(spawn "COMMANDNAME" "ARG-1" ...)`
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- Start the executable file and it returns Process-ID
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- `(wait PID)`
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- Wait the process specified with PID
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- `(getenv "NAME")`
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- Get the value of the environment variable NAME
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- `(setenv "NAME" "VALUE")`
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- Set the value of the environment variable NAME as VALUE
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- `ARGV`
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- The list of command line arguments
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- `PROGRAM-NAME`
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- The path of the script
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- `EXECUTABLE-NAME`
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- The path of the executable of lispect
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- `MATCH`
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- The matching string in the block of `(expect*)`
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- `(catch TAG-FORM FORM...)` and `(throw TAG-FORM RESULT-FORM)`
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- Non-local exits. See also [ISLISP draft - 14.7. Non-local exits](https://islisp-dev.github.io/ISLispHyperDraft/islisp-v23.html#non_local_exits)
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- `(with-handler HANDLER FORM...)`
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- When an error occurs in `FORMS...`, call `HANDLER`.
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See also [ISLISP Draft - Operations relating to condition handling](https://islisp-dev.github.io/ISLispHyperDraft/islisp-v23.html#s_with_handler)
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Other functions are defined on [ISLisp]
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Comparison with [Expect-lua] and [expect(1)]
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--------------------------------------------
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| | [Expect-lua] | Lispect |[expect(1)]
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|-----------------------|-----------------------|---------------|-----------
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| Started | 2017 | 2024 | 1990?
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| Script | Lua ([GophaLua]) | ISLisp ([gmnlisp]) | tcl
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| Windows 7/8 | Supported | Not Supported | Not Supported
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| Windows 10/11 | Supported | Supported | Not Supported
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| Linux | Not Supported | Supported | Supported
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| Mechanisms | [ReadConsoleOutputW] |[PseudoConsole]| PseudoConsole
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| Read Misses | Possible[^1] | Unlikely | Never
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| Stdout Redirection | Unavailable | Available | Available
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| Status | Stable |Work in Progress| Stable
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[^1]: When the output is too excessive, there might be some dropped data
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[ReadConsoleOutputW]: https://github.com/hymkor/expect/issues/34
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[PseudoConsole]: https://learn.microsoft.com/en-us/windows/console/creating-a-pseudoconsole-session
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[Expect-lua]: https://github.com/hymkor/expect
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Technologies used
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-----------------
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- [Creating a Pseudoconsole session - Windows Console | Microsoft Learn](https://learn.microsoft.com/en-us/windows/console/creating-a-pseudoconsole-session)
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- [aymanbagabas/go-pty: Cross platform Go Pty interface](https://github.com/aymanbagabas/go-pty)
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- [hymkor/gmnlisp: gmnlisp - the subset of ISLisp][gmnlisp]
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[ISLisp]: http://islisp.org
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[gmnlisp]: https://github.com/hymkor/gmnlisp
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[GophaLua]: https://github.com/yuin/gopher-lua
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