​​REPL for #c: https://github.com/hexagonal-sun/bic

​​Funny article about memory management in #c and #rust. That's a rare combo. Don't miss it!

​​Get productive on unfamiliar source code.

Software developers spend most of their time figuring out existing source code, but common code editing tools offer little help for this task. Debuggers only allow detailed inspection of one narrow code path. 'Find all references' helps you in navigating between files, but doesn't provide the context to see the big picture of all relevant dependencies. Sourcetrail provides both overview and details by combining an interactive dependency graph, a concise code view and efficient code search, all built into an easy-to-use cross-platform developer tool. It supports you in exploring legacy code, understanding the implementation and refactoring the software architecture, making it a fun experience for the whole family!

Supported Languages: #c,#cpp, #java, #python, and possibly custom!

https://www.sourcetrail.com/

​​GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in nix systems or through your browser.

https://github.com/allinurl/goaccess

#c

​​The pipeline #shell command!

A utility to make building up a pipeline of shell commands easier, especially when doing data exploration.

If you've ever found yourself writing shell code, in an endless loop of piping output to less, scanning it over and making changes, then pipeline can make your life just a little bit more beautiful.

This is just a thin wrapper around your shell, not some totally new data mining tool. Launch pipeline, and start typing shell commands as usual. Every time you hit enter you'll see a one-screen preview of your output, similar to piping output to less, but your cursor will stay right where it was for further editing.

https://github.com/codekitchen/pipeline

#c

​​Tig is an ncurses-based text-mode interface for git. It functions mainly as a #git repository browser, but can also assist in staging changes for commit at chunk level and act as a pager for output from various Git commands.

https://github.com/jonas/tig

#c

​​Wren is a small, fast, class-based concurrent scripting language written in #c

Think Smalltalk in a Lua-sized package with a dash of Erlang and wrapped up in a familiar, modern syntax.

- Wren is small. The VM implementation is under 4,000 semicolons. You can skim the whole thing in an afternoon. It's small, but not dense. It is readable and lovingly-commented.
- Wren is fast. A fast single-pass compiler to tight bytecode, and a compact object representation help Wren compete with other dynamic languages.
- Wren is class-based. There are lots of scripting languages out there, but many have unusual or non-existent object models. Wren places classes front and center.
- Wren is concurrent. Lightweight fibers are core to the execution model and let you organize your program into an army of communicating coroutines.
- Wren is a scripting language. Wren is intended for embedding in applications. It has no dependencies, a small standard library, and an easy-to-use C API. It compiles cleanly as C99, C++98 or anything later.

https://wren.io/

​​Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

Semgrep is a command-line tool for offline static analysis. Use pre-built or custom rules to enforce code and security standards in your codebase. You can try it now with our interactive live editor.

Semgrep combines the convenient and iterative style of grep with the powerful features of an Abstract Syntax Tree (AST) matcher and limited dataflow. Easily find function calls, class or method definitions, and more without having to understand ASTs or wrestle with regexes.

Supports #python #js #go #java and #c

https://github.com/returntocorp/semgrep

​​Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON.

With Miller, you get to use named fields without needing to count positional indices, using familiar formats such as CSV, TSV, JSON, and positionally-indexed. Then, on the fly, you can add new fields which are functions of existing fields, drop fields, sort, aggregate statistically, pretty-print, and more.

1. Miller operates on key-value-pair data while the familiar Unix tools operate on integer-indexed fields: if the natural data structure for the latter is the array, then Miller's natural data structure is the insertion-ordered hash map.
2. Miller handles a variety of data formats, including but not limited to the familiar CSV, TSV, and JSON. (Miller can handle positionally-indexed data too!)

https://github.com/johnkerl/miller

#c #go #shell

Сегодня говорим про bytes!

Вышел восьмой урок "Лучшего курса по Питону": https://www.youtube.com/watch?v=RbznhbK3vC0

Что вообще такое "Лучший курс по Питону"?
- Я решил разобрать все исходники CPython и показать, как на самом деле работают все его части
- В каждом видео я рассказываю про одну узкую тему
- Каждое видео я делю на три уровня сложности: для джунов, мидлов и сениоров
- Переодически беру интервью у других core-разработчиков CPython про разные части интерпретатора в их зоне интересов
- Получается очень хардкорно!

Например, в bytes я показываю, как устроен PyBytesObject (он простой):

typedef struct {
    PyObject_VAR_HEAD
    Py_DEPRECATED(3.11) Py_hash_t ob_shash;
    char ob_sval[1];

    /* Invariants:
     *     ob_sval contains space for 'ob_size+1' elements.
     *     ob_sval[ob_size] == 0.
     *     ob_shash is the hash of the byte string or -1 if not computed yet.
     */
} PyBytesObject;

Как устроен Buffer протокол для bytes с его __buffer__ и __release_buffer__:

static int
bytes_buffer_getbuffer(PyBytesObject *self, Py_buffer *view, int flags)
{
    return PyBuffer_FillInfo(view, (PyObject*)self, (void *)self->ob_sval, Py_SIZE(self), 1, flags);
}

static PyBufferProcs bytes_as_buffer = {
    (getbufferproc)bytes_buffer_getbuffer,
    NULL,
};

Дополнительные материалы (не вошли в выпуск):
- mypy: bytes и bytearray c disable_bytearray_promotion и disable_memoryview_promotion https://github.com/python/mypy/commit/2d70ac0b33b448d5ef51c0856571068dd0754af6
- Мутабельность bytes https://docs.python.org/3.13/c-api/bytes.html#c._PyBytes_Resize
- PyBytes_Writer API: https://github.com/capi-workgroup/decisions/issues/39
- ob_shash deprecation: https://github.com/python/cpython/issues/91020

Поддержать проект можно тут: https://boosty.to/sobolevn

#лкпп #python #c