#!python

import os, sys, re
import subprocess, tempfile

from argparse import ArgumentParser

VALID_JS_NAME = re.compile(r"^[a-zA-Z_][a-zA-Z0-9_]+$")

LONG_DESCRIPTION = """jsi executes JavaScript by running it within a WkWebView. As such, all standard browser APIs should be available.""".strip()

SHELL_BANNER = "Type 'help' for help and 'quit' to exit."

SHELL_HELP = \
"""This program is a simple, interactive JavaScript shell.
In addition to browser-provided APIs, the following commands are provided:
    print(message)
    println(message)
        Prints [message] to the terminal.
        `println` prints a trailing newline after printing [message].

Note that changes to `document` won't be visible unless jsi is run with the '-w' or '--in-window' option. If this option is not given, code is run in a background WebView.
"""

JS_UTILITIES = r"""
/**
 * Additional functions for script output
 */

let print = (...output) => {
    _jsi.notePrintFn(window.print, output);
    return window.print.apply(this, output);
};

let println = (...output) => {
    _jsi.notePrintFn(window.println, output);
    return window.println.apply(this, output);
};

let print_error = (...output) => {
    _jsi.notePrintFn(window.print_error, output);
    return window.print_error.apply(this, output);
};

// Define the _jsi namespace.
(function() {

if (!window._jsi) {
    window._jsi = {};
    _jsi.uncollectedPrints = [];
}

/**
 * Print unprinted output.
 */
_jsi.collectPrints = () => {
    if (_jsi.uncollectedPrints) {
        for (let item of _jsi.uncollectedPrints) {
            item.printFn.apply(item.printFn, item.args);
        }
    }

    _jsi.uncollectedPrints = [];
};

_jsi.pauseSavingFuturePrints = () => {
    _jsi.savingPrintsPaused = true;
};

_jsi.saveFuturePrints = () => {
    _jsi.savingPrintsPaused = false;
};

/**
 * Note that we have called a print
 * function. This allows its output to
 * be collected later.
 */
_jsi.notePrintFn = (fctn, args) => {
    if (_jsi.savingPrintsPaused) {
        return;
    }

    _jsi.uncollectedPrints.push({
        printFn: fctn,
        args: args
    });
};

/**
 * @param obj Entity to stringify and print.
 * @param recurseDepth Maximum depth to print properties of sub-objects.
 * @param indentation How much to indent the region. Optional.
 * @param toplevel Optional; used internally.
 * @return a string description of [obj].
 */
_jsi.stringify_obj = function (obj, recurseDepth, indentation, toplevel) {
    /* Fill default arguments. */
    indentation = indentation === undefined ? "" : indentation;
    toplevel = toplevel === undefined ? true : toplevel;
    recurseDepth = recurseDepth === undefined ? 1 : recurseDepth;

    /* Accumulator for output. */
    let result = "";
    let formatLine = "";

    /**
     * Indent [content] with given indententation and additional characters [additional].
     */
    const indent = (content, additional) => {
        additional = additional || "";

        return (indentation + additional + content).split('\n').join('\n' + indentation + additional);
    };

    const termEscape = (text) => {
        return text.split('\033').join('\\033').split('\0').join('\\0').split('\\').join('\\\\');
    }

    /**
     * Surrounds text with multiline quotation characters, escapes text content.
     */
    const inQuotes = (text) => {
        return "`" + termEscape(text).split('`').join('\\`') + "`";
    };

    /**
     * Append [content] to result with proper indentation and a newline.
     */
    const outputLine = (content) => {
        result += indent(content) + "\n";
    };

    /* If an object, list its properties */
    if (recurseDepth >= 0 && typeof(obj) == 'object') {
        result += '' + obj;
        result += " {\n";

        let propDescriptions = [];

        for (let prop in obj) {
            result += indent(prop + ": ", "  ");

            /* Permission errors may prevent us from accessing/enumerating properties of obj[prop]. */
            try {
                result += _jsi.stringify_obj(obj[prop], recurseDepth - 1,indentation + "  ", false);
            } catch(e) {
                result += "(error `" + e + "`)";
            }

            result += ",\n";
        }

        outputLine("}");
        formatLine = "js";
    } else if (typeof (obj) == "string") {
        const quoted = inQuotes(obj);
        const lines = quoted.split('\n');
        formatLine = "js";

        if (quoted.length > 100 && recurseDepth < 0) {
            result += quoted.substring(0, 100) + ' `...';
        } else if (lines.length == 1) {
            result += quoted;
        } else {
            if (obj.search(/[<][\/][a-zA-Z0-9 \t]+[>]/) >= 0 && recurseDepth >= 0) {
                for (const line of lines) {
                    outputLine(line);
                }

                formatLine = "html";
            } else {
                result += quoted;
            }
        }
    } else if (typeof (obj) == 'function') {
        if (recurseDepth < 0) {
            result += "[ Function ]";
        } else {
            const lines = termEscape(obj + '').split('\n');

            for (let i = 0; i < lines.length; i++) {
                if (i == 0) {
                    result += lines[i] + '\n';
                } else if (i == lines.length - 1) {
                    result += indent(lines[i]);
                } else {
                    outputLine(lines[i]);
                }
            }
        }

        formatLine = "js";
    } else if (obj == undefined) {
        result += "undefined";
        formatLine = "undefined";
    } else {
        result += termEscape('' + obj);
    }

    formatLine += " " + result.split("\n").length;

    if (!toplevel) {
        formatLine = "";
    } else {
        result = "\n" + result;
        formatLine = "\n" + formatLine;
    }

    return result + formatLine;
};

})(); /* End declaration of _jsi "namespace". */
"""

def getJSInfo(text, stopIdx=-1):
    """
    Returns information about [text] if
    interpreted as JavaScript. Information
    is returned as a dictionary in the form,
    {
        endsWithOp: '+', '-', '*', '/', '&', '|', '^', or None
        parenLevel: Number of unclosed nested parens
        squareBracketLevel: Number of unclosed nested '[' ']' brackets
        curlyBraceLevel: Number of unclosed nested '{' '}' braces.
        escaped: True iff the last character processed was escaped escaped
        inComment: The last character processed was in some (single or multi-line) comment
        inMultiLineComment: True iff the last character processed was in a multi-line comment
        inQuote: '`', '"', "'", or None
        trailingEmptyLineCount: Number of lines with no non-space characters processed at the end of the input.
        endsWithSemicolon: Whether the last character in the input is ';'
    }
    """

    inQuote = None
    inSLComment = False
    inMLComment = False
    escaped = False
    parenLevel = 0
    curlyBraceLevel = 0
    squareBracketLevel = 0
    endsWithOperator = None
    emptyLineCount = 0
    endsWithSemicolon = False

    if stopIdx > len(text) or stopIdx < 0:
        stopIdx = len(text)

    for i in range(0, stopIdx):
        char = text[i]
        nextChar = ''
        if i + 1 < len(text):
            nextChar = text[i + 1]

        isSpaceChar = char == ' ' or char == '\t' or char == '\n'

        if not isSpaceChar:
            endsWithOperator = None
            emptyLineCount = 0
        endsWithSemicolon = False

        if escaped:
            escaped = False
        elif char == '\n':
            emptyLineCount += 1
            inSLComment = False
        elif char == '*' and nextChar == '/':
            inMLComment = False
        elif inMLComment or inSLComment:
            pass
        elif char == '"' or char == "'" or char == '`':
            if inQuote is None:
                inQuote = char
            elif char == inQuote:
                inQuote = None
        elif inQuote:
            pass
        elif char == '/' and nextChar == '*':
            inMLComment = True
        elif char == '/' and nextChar == '/':
            inSLComment = True
        elif char == '\\':
            escaped = True
        elif char == '(':
            parenLevel += 1
        elif char == ')':
            parenLevel -= 1
        elif char == '{':
            curlyBraceLevel += 1
        elif char == '}':
            curlyBraceLevel -= 1
        elif char == '[':
            squareBracketLevel += 1
        elif char == ']':
            squareBracketLevel -= 1
        elif char == ';':
            endsWithSemicolon = True
        elif char == '+' or char == '-' or char == '*' or char == '/' or char == '&' or char == '^' or char == '|':
            endsWithOperator = char

    result = {}
    result['endsWithOp'] = endsWithOperator
    result['parenLevel'] = parenLevel
    result['squareBracketLevel'] = squareBracketLevel
    result['curlyBraceLevel'] = curlyBraceLevel
    result['escaped'] = escaped
    result['inComment'] = inMLComment or inSLComment
    result['inMultiLineComment'] = inMLComment
    result['inQuote'] = inQuote
    result['trailingEmptyLineCount'] = emptyLineCount
    result['endsWithSemicolon'] = endsWithSemicolon
    return result


def shouldNewlineAccept(text):
    """
    Returns true iff pressing Return
    should append a newline to text.
    """

    ctx = getJSInfo(text)
    hasUnfinishedCode = ctx['squareBracketLevel'] > 0 or \
            ctx['curlyBraceLevel'] > 0 or\
            ctx['parenLevel'] > 0 or \
            ctx['inQuote'] or \
            ctx['inMultiLineComment'] or \
            ctx['endsWithOp']
#            ctx['endsWithSemicolon']

    return ctx['trailingEmptyLineCount'] < 2 and hasUnfinishedCode or ctx['escaped']


try:
    import pygments
    from pygments.lexers.javascript import JavascriptLexer
    from pygments.lexers.html import HtmlLexer
    from pygments.formatters import TerminalFormatter
    havePygments = True
except:
    havePygments = False

try:
    import prompt_toolkit, prompt_toolkit.filters, prompt_toolkit.validation
    from prompt_toolkit.lexers import PygmentsLexer
    from prompt_toolkit.completion import Completion, Completer, NestedCompleter

    class NewlineAcceptTester(prompt_toolkit.filters.Condition, prompt_toolkit.validation.Validator):
        def __init__(self, session):
            self._session = session
            self._text = ""
        def validate(self, document):
            self._text = document.text
        def __call__(self):
            return shouldNewlineAccept(self._text)
        def __bool__(self):
            return True

    class JSCompleter(Completer):
        completions = {
            "window": None,
            "if": None,
            "else": None,
            "var": None,
            "let": None,
            "for": None,
            "of": None,
            "in": None,
            "while": None,
            "const": None,
            "class": None,
            "extends": None,
            "new": None,
            "function": None,
            "println": None,
            "print": None,
            "Math": {
                "random": None,
                "sin": None,
                "cos": None,
                "asin": None,
                "acos": None,
                "atan": None,
                "atan2": None,
                "tan": None,
                "pow": None,
                "log": None,
                "abs": None,
                "cbrt": None,
                "sqrt": None,
                "exp": None,
                "floor": None,
                "round": None,
                "ceil": None,
                "PI": None,
                "E": None,
                "SQRT2": None,
                "LN2": None,
                "LN10": None
            },
            "BigInt": None,
            "Number": None,
            "Date": None,
            "help": None,
            "quit": None
        }

        def __init__(self, runJS):
            self._userPopulated = {}
            self._runJS = runJS
            self._populateFromJS("window")
            self.completions["window"]["window"] = self.completions["window"]
            for key in self.completions["window"]:
                self.completions[key] = self.completions["window"][key]

        def get_completions(self, document, complete_event):
            cursor = document.cursor_position
            text = document.text
            word = document.get_word_before_cursor(pattern=re.compile(r"[a-z0-9A-Z._]+"))

            # First, if we're in a quote or comment, quit.
            ctx = getJSInfo(text, cursor)
            if ctx['inComment'] or ctx['inQuote']:
                return

            def fromDict(parts, completionDict):
                """ Yields completions matching parts from completionDict """
                result = []

                if len(parts) > 0:
                    for key in completionDict:
                        if len(key) >= len(parts[0]) and key[:len(parts[0])] == parts[0]:
                            if len(parts) == 1:
                                result.append(Completion(key, start_position = -len(parts[0])))
                            elif completionDict[key]:
                                result += fromDict(parts[1:], completionDict[key])
                return result

            parts = word.split('.')
            completionCount = 0

            for completion in fromDict(parts, self.completions):
                completionCount += 1
                yield completion

            if completionCount == 0 and len(word) > 0 and len(parts) >= 2:
                # If the word's parent isn't in this' completion dict,
                # stop.
                checkDict = self.completions
                for part in parts[:-2]:
                    if not part in checkDict:
                        return
                    checkDict = checkDict[part]

                if word[-1] == '.':
                    word = word[:-1]
                populateFrom = ".".join(parts[:-1])

                # If we've already tried to populate suggestions
                # for this, stop. There may not be any
                if populateFrom in self._userPopulated:
                    return

                self._populateFromJS(populateFrom)
                self._userPopulated[populateFrom] = True

        def _populateFromJS(self, base, parentDict = None, depth = 0, maxDepth = 0):
            if depth > maxDepth:
                return

            if parentDict is None:
                parts = base.split('.')
                parentDict = self.completions
                baseSoFar = []

                for part in parts:
                    baseSoFar.append(part)
                    if not part in parentDict or not parentDict[part]:
                        partExistsResult = self._runJS("""
                        try {
                            %s;
                            println('success');
                        } catch(e) {
                            println('error');
                        }
                        """ % ".".join(baseSoFar)).strip()

                        # If it doesn't exist, don't generate completions
                        # for it!
                        if partExistsResult != "success":
                            return

                        parentDict[part] = {}
                    parentDict = parentDict[part]

            out = self._runJS("""{
            let result = '';
            try
            {
                for (let key in eval(%s)) {
                    if (key.indexOf('\\n') == -1) {
                        result += key + "\\n";
                    }
                }
            } catch(e) { }
            println(result); }""" % jsQuote(base))

            for key in out.split('\n'):
                if key != "" and VALID_JS_NAME.match(key):
                    parentDict[key] = { }
                    self._populateFromJS(base + "." + key, parentDict[key], depth + 1, maxDepth)

    promptTkSession = None
    if sys.stdin.isatty():
        promptTkSession = prompt_toolkit.PromptSession()
except Exception as e:
    print ("Warning: Unable to import prompt_toolkit: " + str(e))
    promptTkSession = None

class SourceFormatter:
    def __init__(self, disableColor=False):
        self._disableColor = disableColor or not havePygments

    def isHighlightingEnabled(self):
        return not self._disableColor

    def formatHtml(self, text):
        """ Returns [text] highlighted via ASCII escape sequences """

        if self._disableColor:
            return text
        else:
            return self._highlight(text, HtmlLexer())

    def formatJavascript(self, text):
        """
            Returns [text] with ASCII escape sequences inserted to provide
        syntax highlighting
        """

        if self._disableColor:
            return text
        else:
            return self._highlight(text, JavascriptLexer()).rstrip()

    def getJavascriptLexer(self):
        """
            Returns JavascriptLexer, or None, depending on whether coloring is enabled.
        """

        if self._disableColor:
            return None
        else:
            return JavascriptLexer

    def formatError(self, text):
        if self._disableColor:
            return text
        else:
            return "\033[92m%s\033[0m" % text

    def _highlight(self, text, lexer):
        return pygments.highlight(text, lexer, TerminalFormatter())

class InputReader:
    def __init__(self, disableFormatting, promptText, runJS):
        self._formattingDisabled = disableFormatting or not promptTkSession
        self._promptText = promptText

        if not self._formattingDisabled:
            self._makeInteractive()
            self._lexer = PygmentsLexer(JavascriptLexer)
            self._shouldNewlineAcceptTest = NewlineAcceptTester(promptTkSession)
            self._completer = JSCompleter(runJS)

    def prompt(self):
        if self._formattingDisabled:
            print(self._promptText, end='')
            result = str(input())
            while shouldNewlineAccept(result):
                result += "\n" + str(input())
            return result
        else:
            return promptTkSession.prompt(self._promptText,
                    lexer=self._lexer,
                    multiline=self._shouldNewlineAcceptTest,
                    validator=self._shouldNewlineAcceptTest,
                    completer=self._completer)

    def _makeInteractive(self):
        runJS("window.interactiveCommandRunning = true;", inTermContext = True)

class Printer:
    PRIMARY_COLOR="\033[94m"
    SECONDARY_COLOR="\033[33m"
    HIGHLIGHT_COLOR="\033[93m"
    NO_COLOR="\033[0m"

    def __init__(self, disableColorization):
        self._colorDisabled = disableColorization

    def print(self, text, end='\n'):
        """ Print [text] with no additional formatting. """

        self._print(text, end=end)

    def printPrimary(self, text, end='\n'):
        """ Print [text] with primary formatting. """

        self._print(text, self.PRIMARY_COLOR, end=end)

    def printSecondary(self, text, end='\n'):
        """ Print [text] with secondary formatting. """

        self._print(text, self.SECONDARY_COLOR, end=end)

    def printHighlight(self, text, end='\n'):
        """ Print [text], highlighted """

        self._print(text, self.HIGHLIGHT_COLOR, end=end)

    def _print(self, text, colorize=None, end='\n'):
        if colorize is None or self._colorDisabled:
            print(text, end=end)
        else:
            print("%s%s%s" % (colorize, text, self.NO_COLOR), end=end)


## Returns [text] within a string, line breaks, etc. escaped.
def jsQuote(text):
    result = '`'
    for char in text:
        if char == '`' or char == '\\':
            result += '\\'
        result += char
    result += '`'

    return result

def exportVarDefs(js):
    VARDECL_LETTERS = { '', 'l', 'e', 't', 'c', 'o', 'n', 's', 't' }
    result = ''

    inQuote = None
    escaped = False
    buff = ''
    bracketLevel = 0
    inSingleLineComment = False
    inMultiLineComment = False

    def flushBuff(nextChar):
        nonlocal buff, result
        if nextChar == '\t' or nextChar == '\n' or nextChar == ' ':
            if buff.strip() == 'let' or buff.strip() == 'const':
                if bracketLevel == 0 and not inSingleLineComment and not inMultiLineComment and inQuote is None:
                    buff = 'var'
        result += buff
        buff = ''

    for i in range(0, len(js)):
        char = js[i]
        nextChar = ''

        if i + 1 < len(js):
            nextChar = js[i + 1]

        inComment = inSingleLineComment or inMultiLineComment

        buff += char
        if escaped:
            escaped = False
            continue
        elif inSingleLineComment and char == '\n':
            inSingleLineComment = False
        elif char == '*' and nextChar == '/':
            inMultiLineComment = False
        elif inComment:
            continue
        elif char == '"' or char == "'" or char == '`':
            if char == inQuote:
                inQuote = None
            else:
                inQuote = char
        elif inQuote:
            continue
        elif char == '/' and nextChar == '/':
            inSingleLineComment = True
        elif char == '/' and nextChar == '*':
            inMultiLineComment = True
        elif char == '{':
            bracketLevel += 1
        elif char == '}':
            bracketLevel -= 1
        elif char == '\\':
            escaped = True

        if not nextChar in VARDECL_LETTERS or not char in VARDECL_LETTERS:
            flushBuff(nextChar)

    result += buff
    return result

## Evaluates [content] as JavaScript. If
##  [inTermContext], [content] is evaluated
##  in the same context as the terminal UI.
## Returns the output, if any, produced by [content].
##  If [collectPrints], any async/delayed print statements' output is also returned.
def runJS(content, inTermContext=False, recurseDepth=1, sourceFormatter=SourceFormatter(), collectPrints = False):
    toRun = JS_UTILITIES

    if collectPrints:
        toRun += "_jsi.collectPrints();\n"

    # Don't re-print what was printed while jsc was running
    toRun += "_jsi.pauseSavingFuturePrints();\n"
    toRun += "print(_jsi.stringify_obj(eval(%s), %d));" % (jsQuote(exportVarDefs(content)), recurseDepth)

    # Save any async prints for later collection
    toRun += "_jsi.saveFuturePrints();"

    outFile = tempfile.NamedTemporaryFile(delete=False)
    outFile.write(bytes(toRun, "utf-8"))
    outFile.close()

    args = ["jsc"]
    if inTermContext:
        args.append("--in-window")
    args.append(os.path.relpath(outFile.name))

    output = subprocess.check_output(args)
    output = output.decode("utf-8").rstrip(" \r\n")

    os.unlink(outFile.name)

    ## The last line is always a format specifier, unless an error occurred.
    outLines = output.split('\n')

    if len(outLines) == 0:
        return "No output"

    lastLine = outLines[-1].split(" ")
    outLines = outLines[:-1]

    # If we don't have two words in the output's
    # format specification line, an error occurred.
    if len(lastLine) != 2 or not lastLine[1].isdecimal():
        return sourceFormatter.formatError(output)

    formatType = lastLine[0]
    formatLineCount = int(lastLine[1])

    formatLines = "\n".join(outLines[-formatLineCount:])
    unformatLines = "\n".join(outLines[:-formatLineCount])

    if formatType == 'js':
        formatLines = sourceFormatter.formatJavascript(formatLines)
    elif formatType == 'html':
        formatLines = sourceFormatter.formatHtml(formatLines)
    elif formatType == "undefined":
        formatLines = ""

        # Remove trailing linebreak from unformatted lines, we don't need it.
        if len(unformatLines) > 1 and unformatLines[-1] == '\n':
            unformatLines = unformatLines[:-1]

    result = unformatLines + formatLines
    return result

## Parse commandline arguments and take action on them, if necessary.
## Returns a map with the following keys:
## {
##  prompt: The prompt to use when interacting with the user.
##  omitIntro: False iff a brief introductory help message should be printed.
##  inTermWebView: True iff scripts should be run in the same WkWebView as the terminal UI.
##  noColor: True iff output should have no color formatting.
## }
def parseCmdlineArguments():
    args = ArgumentParser(
            description="An interactive JavaScript shell",
            epilog=LONG_DESCRIPTION
    )

    isTTY = True
    omitIntro = False
    defaultPrompt = "% "

    # If we're getting input from a pipe (i.e. cat foo.js | jsi)
    # don't print a prompt (by default).
    if not sys.stdin.isatty() or not sys.stdout.isatty():
        defaultPrompt = ""
        omitIntro = True
        isTTY = False

    args.add_argument("--prompt", default=defaultPrompt)
    args.add_argument("--no-banner",
            default=omitIntro, action="store_true", dest="omitIntro")
    args.add_argument("--no-color",
            default=not isTTY,
            dest="noColor",
            action="store_true", help="Disable colorized output")
    args.add_argument("-d", "--inspect-depth",
            default=0,
            type=int,
            help="When printing the details of an object, how many levels of sub-objects to inspect. This should be a small number (e.g. 0, 1, or 2).",
            dest="inspectDepth")
    args.add_argument("-w", "--in-window",
            action="store_true", dest="inTermWebView",
            help="Run JavaScript in the same WkWebView as the terminal UI.")

    result = args.parse_args()

    if not "omitIntro" in result:
        result.omitIntro = omitIntro

    return result


if __name__ == "__main__":
    args = parseCmdlineArguments()
    promptText = args.prompt
    response = ''

    formatter = SourceFormatter(args.noColor)
    execJS = lambda js, collectPrints=False: \
            runJS(js,
                    args.inTermWebView,
                    args.inspectDepth,
                    formatter,
                    collectPrints=collectPrints)

    out = Printer(args.noColor)
    readIn = InputReader(args.noColor, promptText, execJS)

    if not args.omitIntro:
        out.printPrimary(SHELL_BANNER)

    # If input is not directly from a user,
    # run input to this, then exit.
    if not sys.stdin.isatty():
        toRun = sys.stdin.read()
        out.print(execJS(toRun))
        sys.exit(0)

    while True:
        try:
            response = readIn.prompt()
        except EOFError:
            print()
            break
        except KeyboardInterrupt:
            print("quit")
            break
        if response == "quit":
            break
        elif response == "help":
            out.printPrimary(SHELL_HELP)
        else:
            out.print(execJS(response,  collectPrints=True))

It would be great to have this in a-Shell! I'm not an iOS developer, so I'm not comfortable opening a pull request.

Summary

• After closing and re-opening a-Shell, the screen is black, and commands I enter seem to do nothing.
  • When no external keyboard is connected, the touch keyboard does not appear.

Terminal settings

• A rather large font-size (config -s 16, I think)
• Black background (config -b black)
• White foreground

Thanks again for working on this!

Summary

• #!command_name at the top of an executable text file seems to only work if command_name is python or lua.

Expected Behavior

~/Documents/bin/test1:

#!sh
echo "It works"

or

#!bc
print 'a test'

or

#!almake_shell
# ^ Part of almost_make pip package

echo "It doesn't work"

~/Documents/bin/test2:

#!python
print("It works")

$ chmod u+x ~/Documents/bin/test1
$ chmod u+x ~/Documents/bin/test2
$ test2
It works
$ test1
test1: command not found

test1 and test2 should produce the same output.

Thank you for your time!

I'm trying to build a-Shell, but it seems that this repository is currently impossible to build because of some problems.

The first problem is a conflict of dependencies. Specifically, both https://github.com/holzschu/Python-aux and https://github.com/holzschu/libssh2-for-iOS have openssl.framework, so Xcode outputs an error about that on build.

The second one is using paths like /Users/holzschu/... or ../../../Library/Developer/Xcode/DerivedData/.... To avoid it, use their package's frameworks directly and don't have references to xcframework files. If the first problem is solved, I will be able to submit a PR to solve this if you want.

Thanks.

Clang doesn't seem to work on iOS 15.4. This issue can be reproduced on a-shell and other apps that uses https://github.com/holzschu/llvm-project.

Looks like this has something to do with libc++.1.dylib being missing in iOS 15.4. I found a message from Xcode 13.3 RC release note that might relate to this (https://developer.apple.com/documentation/Xcode-Release-Notes/xcode-13_3-release-notes):

Xcode no longer passes -stdlib=libstdc++ to Clang, because Clang no longer supports that library on Apple platforms. If your project defines the CLANG_CXX_LIBRARY build setting, remove it because it no longer does anything. (83768231)

Error from Xcode:

Failed loading clang from clang.framework/clang, cause = dlopen(clang.framework/clang, 0x0009): Library not loaded: @rpath/libc++.1.dylib
  Referenced from: /private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/clang.framework/clang
  Reason: tried: '/usr/lib/system/introspection/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/clang.framework/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/clang.framework/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/ios_system.framework/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file),
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file), 
'/private/var/containers/Bundle/Application/860EA2C4-8F59-456A-A643-DBE4C1E23DB8/Code.app/Frameworks/libc++.1.dylib' (no such file)

a-Shell screenshot:

This problem may be fixed before the final build of iPadOS 14.5 if it is caused by OS or SDK, but I created this issue just in case.

In iPadOS 14.5 Beta 1, the layout of Vim is broken on a-Shell. Please see the screenshots below.

1. vim with my .vimrc on a-Shell 1.6.6 (iPadOS 14.5 Beta 1):

2. vim with my .vimrc on a-Shell 1.6.6 (iPadOS 14.4):

3. vim -u NONE on a-Shell 1.6.6 (iPadOS 14.5 Beta 1):

Hi I am trying to follow the instructions to build , but somehow it does not work quite well for me :)

I see a lot of messages like

error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: can't open file: build/lib.macosx-11.1-x86_64-3.9/Frameworks//python3_ios-_cffi_backend.framework/python3_ios-_cffi_backend (No such file or directory)
Creating:  lib.darwin-arm64-3.9/Frameworks/_cffi_backend.framework

While other frameworks seem to be built, the _cffi_backend framework dir is not even created before .

Other problem is that the xcode proj seems to reference binaries from other parts of the filesystem (Folder referenced for ios_system, network_ios, lua_ios) . It seems to come from "../../../../../../../../src/Xcode_iPad/a-Shell" in a-Shell.xcodeproj/project.pbxproj . Am I supposed to built this prior to this project at that specific location ?

In iOS/iPadOS 15, a-Shell displays the QuickType bar on the bottom.

If I remember correctly, it was hidden in iOS/iPadOS 14.x and earlier.

Maybe, it relates to this:

In iOS 14 and iPadOS 14 and earlier, when autocorrectionType is set to UITextAutocorrectionTypeNo, the QuickType bar is disabled. For apps linked against iOS 15 and iPadOS 15 or later, the QuickType bar is enabled and shows spellchecking candidates. If the new behavior isn’t desirable for your use case, set spellCheckingType to UITextSpellCheckingTypeNo to hide the QuickType bar. (68874861)

Summary

• sshing into a remote server, I find that while arrow keys move the cursor on the commandline, they do nothing in vim or man
• Telling vim to log received keypresses,

  1 ^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[
    [D^[[D^[[D^[[D^[[D^[[D^[[D^[[D^[[D^[[D^[[D^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C
    ^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[
    [C^[[C^[[C^[[C^[[C^[[B^[[B^[[B^[[C^[[B^[[B^[[B^[[B^[[B^[[B^[[B^[[B^[[C^[[A^[[A
    ^[[C^[[A^[[A^[[C^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[
    [A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[[A^[:q^M

Edit: This may just be a configuration issue (I don't experience this with nano)...

It seems like I can't run Perl scripts anymore in the latest version:

Can't locate strict.pm in @INC (you may need to install the strict module) (@INC contains: /var/mobile/Containers/Data/Application/201ED9FE
-05C0-4690-996E-440A9D9C06D0/Documents/perl5/lib/perl5 /private/var/containers/Bundle/Application/F9A869EA-5556-4139-9455-C42AEEA1CD82/a-Sh
ell.app/Perl) at .normen/install.pl line 2.
BEGIN failed--compilation aborted at .normen/install.pl line 2.

When I run the command like the following, the playback time of out.mov becomes very long.

ffmpeg -i Big_Buck_Bunny_1080_10s_5MB.mp4 -c:v h264_videotoolbox -an out.mov

In this case, the playback time of Big_Buck_Bunny_1080_10s_5MB.mp4 is 00:00:10.00, however, the one of out.mov is 92:17:02.23 as you can see from the following results. if you test in your own environment, you can download the input video here.

$ ffprobe Big_Buck_Bunny_1080_10s_5MB.mp4 
ffprobe version n4.4-80-gbf87bdd3f6 Copyright (c) 2007-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.11)
  configuration: --cc=clang --arch=arm64 --disable-asm --enable-cross-compile --enable-pthreads --enable-videotoolbox --disable-audiotoolbox --enable-libfreetype --enable-libzimg --
disable-network --disable-debug --disable-gpl --disable-nonfree
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Big_Buck_Bunny_1080_10s_5MB.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Big Buck Bunny, Sunflower version
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    composer        : Sacha Goedegebure
    encoder         : Lavf57.63.100
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    genre           : Animation
  Duration: 00:00:10.00, start: 0.000000, bitrate: 3948 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3945 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
$ ffprobe out.mov 
ffprobe version n4.4-80-gbf87bdd3f6 Copyright (c) 2007-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.11)
  configuration: --cc=clang --arch=arm64 --disable-asm --enable-cross-compile --enable-pthreads --enable-videotoolbox --disable-audiotoolbox --enable-libfreetype --enable-libzimg --
disable-network --disable-debug --disable-gpl --disable-nonfree
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    title           : Big Buck Bunny, Sunflower version
    encoder         : Lavf58.76.100
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    genre           : Animation
  Duration: 92:17:02.23, start: 0.000000, bitrate: 0 kb/s
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 0 kb/s, SAR 1:1 DAR 16:9, 0.0009 fps, 30 tbr, 15360 tbn, 30720 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : FFMP
      encoder         : Lavc58.134.100 h264_videotoolbo

I think that the warning messages like [mov @ 0x10905c400] Invalid DTS: 34132480 PTS: 17066496 in output stream 0:0, replacing by guess might relate to the issue because they didn't appear in the macOS version.

$ ffmpeg -i Big_Buck_Bunny_1080_10s_5MB.mp4 -c:v h264_videotoolbox -an out.mov
ffmpeg version n4.4-80-gbf87bdd3f6 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.11)
  configuration: --cc=clang --arch=arm64 --disable-asm --enable-cross-compile --enable-pthreads --enable-videotoolbox --disable-audiotoolbox --enable-libfreetype --enable-libzimg --disable-network --disable-debug --disable-gpl --disable-nonfree
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Big_Buck_Bunny_1080_10s_5MB.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Big Buck Bunny, Sunflower version
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    composer        : Sacha Goedegebure
    encoder         : Lavf57.63.100
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    genre           : Animation
  Duration: 00:00:10.00, start: 0.000000, bitrate: 3948 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3945 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_videotoolbox))
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
Output #0, mov, to 'out.mov':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Big Buck Bunny, Sunflower version
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    composer        : Sacha Goedegebure
    genre           : Animation
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    encoder         : Lavf58.76.100
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 15360 tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc58.134.100 h264_videotoolbox
[h264_videotoolbox @ 0x109107000] Color range not set for yuv420p. Using MPEG range.
[mov @ 0x10905c400] Invalid DTS: 34132480 PTS: 17066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 68265984 PTS: 51200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 102399488 PTS: 85332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 136532480 PTS: 119466496 in output stream 0:0, replacing by guess
frame=   12 fps=0.0 q=-0.0 size=     256kB time=02:09:37.76 bitrate=   0.3kbits/s speed=1.43e+04x    
[mov @ 0x10905c400] Invalid DTS: 170665984 PTS: 153600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 204799488 PTS: 187732992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 255999488 PTS: 238932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 290132480 PTS: 273066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 324265984 PTS: 307200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 358399488 PTS: 341332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 392532480 PTS: 375466496 in output stream 0:0, replacing by guess
frame=   28 fps= 26 q=-0.0 size=     256kB time=07:24:26.63 bitrate=   0.1kbits/s speed=2.45e+04x    
[mov @ 0x10905c400] Invalid DTS: 443732480 PTS: 426666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 477865984 PTS: 460800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 511999488 PTS: 494932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 546132480 PTS: 529066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 580265984 PTS: 563200000 in output stream 0:0, replacing by guess
frame=   39 fps= 24 q=-0.0 size=     256kB time=10:48:08.83 bitrate=   0.1kbits/s speed=2.44e+04x    
[mov @ 0x10905c400] Invalid DTS: 614399488 PTS: 597332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 665599488 PTS: 648532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 699732480 PTS: 682666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 733865984 PTS: 716800000 in output stream 0:0, replacing by guess
frame=   48 fps= 22 q=-0.0 size=     512kB time=13:34:48.83 bitrate=   0.1kbits/s speed=2.28e+04x    
[mov @ 0x10905c400] Invalid DTS: 767999488 PTS: 750932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 802132480 PTS: 785066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 853332480 PTS: 836266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 887465984 PTS: 870400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 921599488 PTS: 904532992 in output stream 0:0, replacing by guess
frame=   58 fps= 22 q=-0.0 size=     512kB time=16:21:28.86 bitrate=   0.1kbits/s speed=2.21e+04x    
[mov @ 0x10905c400] Invalid DTS: 955732480 PTS: 938666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 989865984 PTS: 972800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1023999488 PTS: 1006932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1075199488 PTS: 1058132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1109332480 PTS: 1092266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1143465984 PTS: 1126400000 in output stream 0:0, replacing by guess
frame=   71 fps= 22 q=-0.0 size=     512kB time=20:22:13.33 bitrate=   0.1kbits/s speed=2.31e+04x    
[mov @ 0x10905c400] Invalid DTS: 1177599488 PTS: 1160532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1211732480 PTS: 1194666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1262932480 PTS: 1245866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1297065984 PTS: 1280000000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1331199488 PTS: 1314132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1365332480 PTS: 1348266496 in output stream 0:0, replacing by guess
frame=   85 fps= 23 q=-0.0 size=     512kB time=24:59:59.96 bitrate=   0.0kbits/s speed=2.44e+04x    
[mov @ 0x10905c400] Invalid DTS: 1399465984 PTS: 1382400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1433599488 PTS: 1416532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1484799488 PTS: 1467732992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1518932480 PTS: 1501866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1553065984 PTS: 1536000000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1587199488 PTS: 1570132992 in output stream 0:0, replacing by guess
frame=   98 fps= 23 q=-0.0 size=     512kB time=29:00:44.40 bitrate=   0.0kbits/s speed=2.47e+04x    
[mov @ 0x10905c400] Invalid DTS: 1621332480 PTS: 1604266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1672532480 PTS: 1655466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1706665984 PTS: 1689600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1740799488 PTS: 1723732992 in output stream 0:0, replacing by guess
frame=  107 fps= 22 q=-0.0 size=     512kB time=31:47:24.40 bitrate=   0.0kbits/s speed=2.39e+04x    
[mov @ 0x10905c400] Invalid DTS: 1774932480 PTS: 1757866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1809065984 PTS: 1792000000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1843199488 PTS: 1826132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1894399488 PTS: 1877332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1928532480 PTS: 1911466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1962665984 PTS: 1945600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 1996799488 PTS: 1979732992 in output stream 0:0, replacing by guess
frame=  121 fps= 23 q=-0.0 size=     768kB time=35:48:08.86 bitrate=   0.0kbits/s speed=2.43e+04x    
[mov @ 0x10905c400] Invalid DTS: 2030932480 PTS: 2013866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2082132480 PTS: 2065066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2116265984 PTS: 2099200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2150399488 PTS: 2133332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2184532480 PTS: 2167466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2218665984 PTS: 2201600000 in output stream 0:0, replacing by guess
frame=  135 fps= 23 q=-0.0 size=     768kB time=40:25:55.50 bitrate=   0.0kbits/s speed=2.51e+04x    
[mov @ 0x10905c400] Invalid DTS: 2252799488 PTS: 2235732992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2303999488 PTS: 2286932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2338132480 PTS: 2321066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2372265984 PTS: 2355200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2406399488 PTS: 2389332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2440532480 PTS: 2423466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2491732480 PTS: 2474666496 in output stream 0:0, replacing by guess
frame=  151 fps= 24 q=-0.0 size=     768kB time=45:22:13.30 bitrate=   0.0kbits/s speed=2.59e+04x    
[mov @ 0x10905c400] Invalid DTS: 2525865984 PTS: 2508800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2559999488 PTS: 2542932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2594132480 PTS: 2577066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2628265984 PTS: 2611200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2662399488 PTS: 2645332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2713599488 PTS: 2696532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2747732480 PTS: 2730666496 in output stream 0:0, replacing by guess
frame=  166 fps= 24 q=-0.0 size=     768kB time=49:59:59.96 bitrate=   0.0kbits/s speed=2.62e+04x    
[mov @ 0x10905c400] Invalid DTS: 2781865984 PTS: 2764800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2815999488 PTS: 2798932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2850132480 PTS: 2833066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2901332480 PTS: 2884266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2935465984 PTS: 2918400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 2969599488 PTS: 2952532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3003732480 PTS: 2986666496 in output stream 0:0, replacing by guess
frame=  180 fps= 24 q=-0.0 size=     768kB time=54:00:44.43 bitrate=   0.0kbits/s speed=2.63e+04x    
[mov @ 0x10905c400] Invalid DTS: 3037865984 PTS: 3020800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3071999488 PTS: 3054932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3123199488 PTS: 3106132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3157332480 PTS: 3140266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3191465984 PTS: 3174400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3225599488 PTS: 3208532992 in output stream 0:0, replacing by guess
frame=  194 fps= 24 q=-0.0 size=     768kB time=58:38:31.06 bitrate=   0.0kbits/s speed=2.66e+04x    
[mov @ 0x10905c400] Invalid DTS: 3259732480 PTS: 3242666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3310932480 PTS: 3293866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3345065984 PTS: 3328000000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3379199488 PTS: 3362132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3413332480 PTS: 3396266496 in output stream 0:0, replacing by guess
frame=  205 fps= 24 q=-0.0 size=    1024kB time=62:02:13.30 bitrate=   0.0kbits/s speed=2.63e+04x    
[mov @ 0x10905c400] Invalid DTS: 3447465984 PTS: 3430400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3481599488 PTS: 3464532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3532799488 PTS: 3515732992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3566932480 PTS: 3549866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3601065984 PTS: 3584000000 in output stream 0:0, replacing by guess
frame=  216 fps= 24 q=-0.0 size=    1024kB time=65:25:55.50 bitrate=   0.0kbits/s speed=2.62e+04x    
[mov @ 0x10905c400] Invalid DTS: 3635199488 PTS: 3618132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3669332480 PTS: 3652266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3720532480 PTS: 3703466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3754665984 PTS: 3737600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3788799488 PTS: 3771732992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3822932480 PTS: 3805866496 in output stream 0:0, replacing by guess
frame=  229 fps= 24 q=-0.0 size=    1024kB time=69:26:39.96 bitrate=   0.0kbits/s speed=2.62e+04x    
[mov @ 0x10905c400] Invalid DTS: 3857065984 PTS: 3840000000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3891199488 PTS: 3874132992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3942399488 PTS: 3925332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 3976532480 PTS: 3959466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4010665984 PTS: 3993600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4044799488 PTS: 4027732992 in output stream 0:0, replacing by guess
frame=  242 fps= 24 q=-0.0 size=    1024kB time=73:27:24.40 bitrate=   0.0kbits/s speed=2.63e+04x    
[mov @ 0x10905c400] Invalid DTS: 4078932480 PTS: 4061866496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4130132480 PTS: 4113066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4164265984 PTS: 4147200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4198399488 PTS: 4181332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4232532480 PTS: 4215466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4266665984 PTS: 4249600000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4300799488 PTS: 4283732992 in output stream 0:0, replacing by guess
frame=  257 fps= 24 q=-0.0 size=    1024kB time=78:05:11.06 bitrate=   0.0kbits/s speed=2.66e+04x    
[mov @ 0x10905c400] Invalid DTS: 4351999488 PTS: 4334932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4386132480 PTS: 4369066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4420265984 PTS: 4403200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4454399488 PTS: 4437332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4488532480 PTS: 4471466496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4539732480 PTS: 4522666496 in output stream 0:0, replacing by guess
frame=  271 fps= 24 q=-0.0 size=    1024kB time=82:24:26.63 bitrate=   0.0kbits/s speed=2.68e+04x    
[mov @ 0x10905c400] Invalid DTS: 4573865984 PTS: 4556800000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4607999488 PTS: 4590932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4642132480 PTS: 4625066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4676265984 PTS: 4659200000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4710399488 PTS: 4693332992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4761599488 PTS: 4744532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4795732480 PTS: 4778666496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4829865984 PTS: 4812800000 in output stream 0:0, replacing by guess
frame=  287 fps= 25 q=-0.0 size=    1280kB time=87:02:13.33 bitrate=   0.0kbits/s speed=2.7e+04x    
[mov @ 0x10905c400] Invalid DTS: 4863999488 PTS: 4846932992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4898132480 PTS: 4881066496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4949332480 PTS: 4932266496 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 4983465984 PTS: 4966400000 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 5017599488 PTS: 5000532992 in output stream 0:0, replacing by guess
[mov @ 0x10905c400] Invalid DTS: 5051732480 PTS: 5034666496 in output stream 0:0, replacing by guess
frame=  300 fps= 25 q=-0.0 size=    1280kB time=91:02:57.76 bitrate=   0.0kbits/s speed=2.71e+04x    
[mov @ 0x10905c400] Invalid DTS: 5085865984 PTS: 5068800000 in output stream 0:0, replacing by guess
FATAL error, file duration too long for timebase, this file will not be
playable with QuickTime. Choose a different timebase with -video_track_timescale or a different container format
frame=  300 fps= 25 q=-0.0 Lsize=    1377kB time=92:17:02.16 bitrate=   0.0kbits/s speed=2.72e+04x    
video:1369kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.513921%

Those warning messages didn't appear in the macOS version of ffmpeg, and the playback time of out.mov is also normal.

$ ffmpeg -i Big_Buck_Bunny_1080_10s_5MB.mp4 -c:v h264_videotoolbox -an out.mov
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Big_Buck_Bunny_1080_10s_5MB.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Big Buck Bunny, Sunflower version
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    composer        : Sacha Goedegebure
    encoder         : Lavf57.63.100
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    genre           : Animation
  Duration: 00:00:10.00, start: 0.000000, bitrate: 3948 kb/s
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3945 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_videotoolbox))
Press [q] to stop, [?] for help
Output #0, mov, to 'out.mov':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Big Buck Bunny, Sunflower version
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    composer        : Sacha Goedegebure
    genre           : Animation
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    encoder         : Lavf58.76.100
  Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 15360 tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : Lavc58.134.100 h264_videotoolbox
[h264_videotoolbox @ 0x7fabae009a00] Color range not set for yuv420p. Using MPEG range.
frame=  300 fps=165 q=-0.0 Lsize=    1526kB time=00:00:09.93 bitrate=1258.4kbits/s speed=5.47x                                                                                        
video:1521kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.296806%
$ ffprobe out.mov
ffprobe version 4.4 Copyright (c) 2007-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
    title           : Big Buck Bunny, Sunflower version
    encoder         : Lavf58.76.100
    comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
    genre           : Animation
  Duration: 00:00:10.00, start: 0.000000, bitrate: 1250 kb/s
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1246 kb/s, 30 fps, 30 tbr, 15360 tbn, 30720 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : FFMP
      encoder         : Lavc58.134.100 h264_videotoolbo

The macOS version of ffmpeg I used was installed from Homebrew. The differences between the two are as follows.

a-Shell 1.7.5 (185) (TestFlight) (12.9-inch iPad Pro 5th generation running iPadOS 15 Developer Beta 7 (19A5337a)):

$ ffmpeg -version
ffmpeg version n4.4-80-gbf87bdd3f6 Copyright (c) 2000-2021 the FFmpeg developers
built with Apple clang version 12.0.5 (clang-1205.0.22.11)
configuration: --cc=clang --arch=arm64 --disable-asm --enable-cross-compile --enable-pthreads --enable-videotoolbox --disable-audiotoolbox --enable-libfreetype --enable-libzimg --di
sable-network --disable-debug --disable-gpl --disable-nonfree
libavutil      56. 70.100 / 56. 70.100
libavcodec     58.134.100 / 58.134.100
libavformat    58. 76.100 / 58. 76.100
libavdevice    58. 13.100 / 58. 13.100
libavfilter     7.110.100 /  7.110.100
libswscale      5.  9.100 /  5.  9.100
libswresample   3.  9.100 /  3.  9.100
$ ffmpeg -encoders | grep videotoolbox
  configuration: --cc=clang --arch=arm64 --disable-asm --enable-cross-compile --enable-pthreads --enable-videotoolbox --disable-audiotoolbox --enable-libfreetype --enable-libzimg --
disable-network --disable-debug --disable-gpl --disable-nonfree
 V..... h264_videotoolbox    VideoToolbox H.264 Encoder (codec h264)
 V..... hevc_videotoolbox    VideoToolbox H.265 Encoder (codec hevc)

macOS:

$ ffmpeg -version
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
built with Apple clang version 12.0.5 (clang-1205.0.22.9)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
libavutil      56. 70.100 / 56. 70.100
libavcodec     58.134.100 / 58.134.100
libavformat    58. 76.100 / 58. 76.100
libavdevice    58. 13.100 / 58. 13.100
libavfilter     7.110.100 /  7.110.100
libavresample   4.  0.  0 /  4.  0.  0
libswscale      5.  9.100 /  5.  9.100
libswresample   3.  9.100 /  3.  9.100
libpostproc    55.  9.100 / 55.  9.100
$ ffmpeg -encoders | grep videotoolbox
ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
 V..... h264_videotoolbox    VideoToolbox H.264 Encoder (codec h264)
 V..... hevc_videotoolbox    VideoToolbox H.265 Encoder (codec hevc)
$ brew info ffmpeg
ffmpeg: stable 4.4 (bottled), HEAD
Play, record, convert, and stream audio and video
https://ffmpeg.org/
/usr/local/Cellar/ffmpeg/4.4_2 (276 files, 52.4MB) *
  Poured from bottle on 2021-08-28 at 18:53:41
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/ffmpeg.rb
License: GPL-2.0-or-later
==> Dependencies
Build: nasm ✘, pkg-config ✔
Required: aom ✔, dav1d ✔, fontconfig ✔, freetype ✔, frei0r ✔, gnutls ✔, lame ✔, libass ✔, libbluray ✔, libsoxr ✔, libvidstab ✔, libvorbis ✔, libvpx ✔, opencore-amr ✔, openjpeg ✔, opus ✔, rav1e ✔, rubberband ✔, sdl2 ✔, snappy ✔, speex ✔, srt ✔, tesseract ✔, theora ✔, webp ✔, x264 ✔, x265 ✔, xvid ✔, xz ✔, zeromq ✔, zimg ✔
==> Options
--HEAD
        Install HEAD version
==> Analytics
install: 78,029 (30 days), 298,735 (90 days), 1,670,877 (365 days)
install-on-request: 62,053 (30 days), 243,570 (90 days), 1,379,795 (365 days)
build-error: 0 (30 days)

Hi,

I was experimenting with different ways to have credentials stored for lg2 to push without having to repeatedly enter a personal access token.

I have not gotten any way to work, even in the simplest case of a helper shell script with all commands available, I could not avoid the prompt.

[credential "https://github.com/michaelrommel/myrepo"]
        username = michaelrommel
        helper = "!f() { test \"$1\" = get && echo \"password=$(cat $HOME/Documents/.myrepo-cred)\"; }; f"

Is there any way to achieve this with lg2?

Thanks - I haven't found a solution in any of the documentation or issues. Did I overlook this?

Just a thought suggestion, if it is possible to add the ability to display GUI binaries or possibly render 2D/3D GUI (say code compiled with OpenGL). From an experience standpoint, it might look like KMSDRM where you can render GUI directly from the shell.

When I run pkg install git, It outputs this:

Downloading git
The git command cannot be included with
a-Shell. Would you like to create a
script at $HOME/Documents/bin/git that
wraps lg2 with the following contents?
#!/bin/sh
lg2 "$@"
Keep in mind that git and lg2 options
are not 100% compatible, and they also
do not use the same configuration files
or environment variables.
Create $HOME/Documents/bin/git? (y/n [n]) y
The $HOME/Documents/bin directory does not exist.
Exiting without creating wrapper.
Done

URL schemes are described here on the Apple Developer website. A-shell could have a URL scheme like this: ashell:command?command=command.

Here's an example: ashell:command?command=jump%20folder%0Apython3%20file.py, which would run the commands jump folder and python3 file.py.

Users should be able to select a background from photos or files, and decide if they want it to show it in the original aspect ratio (and show black bars), or they can select a portion of the photo use (like in iOS settings).