[MERGE] Add Guix support (see #18)

Reviewed-on: https://git.kappach.at/lda/Parsee/pulls/18

.gitignore

@@ -26,3 +26,7 @@ tags
 !.forgejo/*
 !.forgejo/**
 
+!.guix
+!.guix/*
+!.guix/**
+

.guix/modules/parsee.scm

@@ -0,0 +1,82 @@
+(define-module (parsee)
+  #:use-module (guix packages)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix gexp)
+  #:use-module (guix utils)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages databases)
+  #:use-module ((guix licenses) #:prefix license:))
+
+(define vcs-file?
+  (or (git-predicate
+       (dirname (dirname (current-source-directory))))
+      (const #t)))
+
+(define-public cytoplasm
+  (let ((commit "32f31fe6d61583630995d956ed7bd7566c4dc14f")
+        (revision "0"))
+    (package
+      (name "cytoplasm")
+      (version (git-version "0.4.1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://git.telodendria.io/Telodendria/Cytoplasm")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "09x5xfswryf3wjs1synh972yr2fmpjmffi7pjyjdzb4asqh4whrv"))))
+      (build-system gnu-build-system)
+      (arguments
+       (list
+        #:tests? #f
+        #:configure-flags #~'("--with-lmdb")
+        #:phases #~(modify-phases %standard-phases
+                     (add-before 'configure 'add-ld-flags
+                       (lambda _
+                         (substitute* "./configure"
+                           (("(LDFLAGS=\"\\$\\{LIBS\\} \\$\\{LDFLAGS\\})\"" all flags)
+                            (string-append flags " -Wl,-rpath=" #$output "/lib\"")))
+                         (mkdir-p (string-append #$output "/lib"))))
+                     (replace 'configure
+                       (lambda* (#:key configure-flags #:allow-other-keys)
+                         (apply invoke `("./configure"
+                                         ,(string-append "--prefix=" #$output)
+                                         ,@configure-flags)))))))
+      (inputs (list openssl lmdb))
+      (home-page "https://git.telodendria.io/Telodendria/Cytoplasm")
+      (synopsis "General-purpose high-level networked C library")
+      (description "Cytoplasm is a general-purpose C library for creating
+high-level (particularly networked and multi-threaded) C applications.")
+      (license license:expat))))
+
+(define-public parsee
+  (package
+    (name "parsee")
+    (version "0.0.1-git")
+    (source
+     (local-file "../.." "parsee-checkout"
+                 #:recursive? #t
+                 #:select? vcs-file?))
+    (build-system gnu-build-system)
+    (arguments
+     (list
+      #:tests? #f
+      #:make-flags #~(list "CC=gcc"
+                           (string-append "CYTO_INC=" #$cytoplasm "/include")
+                           (string-append "CYTO_LIB=" #$cytoplasm "/lib")
+                           (string-append "PREFIX=" #$output))
+      #:phases #~(modify-phases %standard-phases
+                   (replace 'configure
+                     (lambda* (#:key inputs #:allow-other-keys)
+                       (let ((gcc (string-append (assoc-ref inputs "gcc") "/bin/gcc")))
+                         (invoke gcc "configure.c" "-o" "configure")
+                         (invoke "./configure")))))))
+    (home-page "https://git.kappach.at/lda/Parsee")
+    (synopsis "Jealous Matrix to XMPP bridge")
+    (description "Parsee is a Matrix-XMPP bridge written in C99 with Cytoplasm.")
+    (license license:agpl3+)))
+
+parsee

README.MD

@@ -43,6 +43,13 @@ Parsee tries to avoid dependencies aside from [Cytoplasm](https://git.telodendri
 Itself optionally depends on a good POSIX implementation, and optionally OpenSSL/LMDB (highly recommended, but 
 you can get away without those if you're adventurous).
 
+### BUILDING WITH GUIX
+If you have [Guix](https://guix.gnu.org/) installed, you can build Parsee using `guix package -f guix.scm`, or test it
+using `guix shell -f guix.scm`. You can also generate a Docker/OCI image.
+```sh
+guix pack -f docker -S /bin=bin -L.guix/modules parsee
+```
+
 ## RUNNING
 First off, you may want to configure Parsee by running the `config` tool(generally named 
 `parsee-config` in most cases), with the correct flags, like here.

guix.scm

@@ -0,0 +1 @@
+.guix/modules/parsee.scm