chapose: new port

security/chapose: add new port

chapose is a professional-grade command-line tool powered by the ChaCha20-Poly1305 AEAD algorithm.
designed for high performance, automation, and robust security,
it is the specialized CLI component of the ChaCrypt ecosystem.

security/chapose/Portfile

@@ -0,0 +1,54 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+
+PortSystem          1.0
+PortGroup           github 1.0
+PortGroup           dart 1.0
+
+name                chapose
+
+github.setup        huanguan1978 chacrypt 1.0.0 chapose-v
+github.tarball_from archive
+
+worksrcdir          ${distname}/chapose
+
+categories          security
+license             LGPL-3
+
+maintainers         {gmail.com:huanguan1978:crown.hg} openmaintainer
+
+description         High-performance cross-platform file security tool.
+long_description    Chapose is a modern, high-performance file encryption CLI \
+                    based on ChaCha20-Poly1305 (AEAD), designed for strong \
+                    confidentiality and integrity verification in real-world \
+                    workflows. It uses a streaming architecture to process \
+                    very large files with low memory overhead, avoids loading \
+                    full plaintext into memory, and provides clear failure \
+                    signals on authentication mismatch. Chapose supports \
+                    password- and keyfile-based operation, plus seamless \
+                    environment-variable driven usage for automation.
+
+notes "
+Best practice:
+1) Generate and store a dedicated keyfile in a protected location.
+2) Set strict permissions for the keyfile (for example: chmod 400).
+3) Configure the CHAPOSE_KEYFILE environment variable for seamless
+    encrypt/decrypt operations.
+
+Workflow automation:
+For production pipelines, pair chapose with ft:filetools to automate
+archive -> encrypt -> secure wipe flows using YAML tasks and ft shell.
+Reference:
+https://github.com/huanguan1978/chacrypt/tree/main/chapose/doc/en/
+"
+
+# openssl dgst -rmd160 chacrypt-chapose-v1.0.0.tar.gz
+checksums           rmd160  698125bf8849841f86208c3269f90c02dd17a4e6 \
+                    sha256  747d9edcd4d26dcdb6b6905763672e1e864ba9029e8c50b7a696c1c079ebce0a \
+                    size    39993
+
+build.target        bin/chapose.dart
+build.args          -o chapose
+
+destroot {
+    xinstall -m 755 ${worksrcpath}/chapose ${destroot}${prefix}/bin/
+}