Subject: Re: [bug#51512] [PATCH v 2]: gnu: Add bash-bcu.

From: Tobias Geerinckx-Rice <[email-masked]>
Date: Sat, 20 Nov 2021 15:11:30 +0100

David,

david larsson 写道：
> Not sure if u intended to attach ur modified version of the 
> patch when
> you replied or not.

Absolutely.  Oops!  Here it is, belatedly, and possibly 
pointlessly.

> Basically just to make minimal disruption of the the current
> environment when you source bcu.sh. Almost certainly a non-issue 
> 99.9%
> of cases, i.e. I think that just prepending /run/setuid-programs 
> to
> PATH would be fine as well.

The current package does much ‘worse’ comparatively:

> +      ":" (assoc-ref %build-inputs "bindutils") "/bin"
> +      ":" (assoc-ref %build-inputs "coreutils") "/bin"
> +      ":" (assoc-ref %build-inputs "ctypes.sh") "/bin"
> +      ":" (assoc-ref %build-inputs "curl") "/bin"
> […many more…]

However, you make an excellent point, and this packages's intended 
usage means that it will clobber the caller's environment, not 
just its own.

If I were to use this package (and I might—it's neat) I would 
almost certainly end up using it in a setting where changing PATH 
at all would cause unexpected and frustrating ‘bugs’.

Hmm…

Kind regards,

T G-R

From 2ee51b0224c6f3bf9720d217346f53e3cb94e68a Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <[email-masked]>
Date: Mon, 8 Nov 2021 21:09:17 +0100
Subject: [PATCH 06/10] wip bcu

---
 gnu/packages/bash.scm | 196 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 196 insertions(+)

diff --git a/gnu/packages/bash.scm b/gnu/packages/bash.scm
index ed2931fd97..114ea1dcac 100644
--- a/gnu/packages/bash.scm
+++ b/gnu/packages/bash.scm
@@ -25,17 +25,34 @@
 (define-module (gnu packages bash)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (gnu packages)
+  #:use-module (gnu packages admin)
   #:use-module (gnu packages base)
   #:use-module (gnu packages bootstrap)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages curl)
+  #:use-module (gnu packages dns)
+  #:use-module (gnu packages ed)
   #:use-module (gnu packages elf)
+  #:use-module (gnu packages freedesktop)
+  #:use-module (gnu packages gawk)
+  #:use-module (gnu packages gtk)
   #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages networking)
   #:use-module (gnu packages readline)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages libffi)
+  #:use-module (gnu packages pcre)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages php)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages guile)
+  #:use-module (gnu packages guile-xyz)
+  #:use-module (gnu packages tcl)
+  #:use-module (gnu packages web)
+  #:use-module (gnu packages xml)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -448,3 +465,182 @@ (define-public bash-ctypes
 function interface (FFI) directly in your shell.  In other words, it allows
 you to call routines in shared libraries from within Bash.")
     (license license:expat)))
+
+(define-public bash-coding-utils
+  (let ()
+    (package
+      (name "bash-coding-utils")
+      (version "0.2.0")
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (commit "40d6527a9effb4e18778c37bebaa9f3a58de12d6")
+               (url "https://gitlab.com/methuselah-0/bash-coding-utils.sh.git")
+               ;; Include submodules/.  TODO: These seem to be worth packaging?
+               (recursive? #t)))
+         (sha256
+          (base32 "007g6wfybjr0ms32qikb545r11lgm3p98cd7dbzpfyh0grgn9vj1"))))
+      (inputs `(("bash" ,bash)
+                ("bindutils" ,isc-bind "utils")
+                ("coreutils" ,coreutils)
+                ("ctypes.sh" ,bash-ctypes)
+                ("curl" ,curl)
+                ("diffutils" ,diffutils)
+                ("ed" ,ed)
+                ("expect" ,expect)
+                ("find" ,findutils)
+                ("gawk" ,gawk)
+                ("grep" ,grep)
+                ("guile" ,guile-3.0)
+                ("guile-bash" ,guile-bash)
+                ("guile-daemon" ,guile-daemon)
+                ("inetutils" ,inetutils)
+                ("jq" ,jq)
+                ("libxml2-xpath0" ,libxml2-xpath0)
+                ("netcat" ,netcat)
+                ("nmap" ,nmap)
+                ("pcre/bin" ,pcre "bin")
+                ("perl" ,perl)
+                ("php" ,php)
+                ("prips" ,prips)
+                ("python" ,python)
+                ("python-elementpath" ,python-elementpath)
+                ("python-lxml" ,python-lxml)
+                ("python-netaddr" ,python-netaddr)
+                ("python-yq" ,python-yq)
+                ("sed" ,sed)
+                ("socat" ,socat)
+                ("util-linux" ,util-linux)
+                ("which" ,which)
+                ("xdg-utils" ,xdg-utils)
+                ("yad" ,yad)))
+      (build-system trivial-build-system)
+      (arguments
+       `(#:modules ((guix build utils))
+         #:builder
+         (begin
+           (use-modules (guix build utils))
+           (let* ((bash (assoc-ref %build-inputs "bash"))
+                  ;; Some Guile libraries such as GNU Bash will need
+                  ;; to be added to GUILE_LOAD_PATH.
+                  (guile-bash (assoc-ref %build-inputs "guile-bash"))
+                  (g-bash-lib (string-append guile-bash
+                                        "/share/guile/site/"
+                                        ,(version-major+minor (package-version guile-3.0))))
+                  ;; Some Python libraries needs added to PYTHONPATH.
+                  (python-version ,(version-major+minor (package-version python)))
+                  (p-elementpath-lib (string-append
+                                      (assoc-ref %build-inputs "python-elementpath")
+                                      "/lib/python" python-version "/site-packages"))
+                  (p-lxml-lib (string-append
+                               (assoc-ref %build-inputs "python-lxml")
+                               "/lib/python" python-version "/site-packages"))
+                  (p-netaddr-lib (string-append
+                                  (assoc-ref %build-inputs "python-netaddr")
+                                  "/lib/python" python-version "/site-packages"))
+                  (p-lib (string-append
+                          (assoc-ref %build-inputs "python")
+                          "/lib/python" python-version "/site-packages"))
+                  (pylibsline (string-append
+                               p-elementpath-lib ":" p-lxml-lib
+                               ":" p-netaddr-lib ":" p-lib))
+                  (out (assoc-ref %outputs "out"))
+                  (bin (string-append out "/bin"))
+                  ;; Everything but bcu.sh itself is only accessed
+                  ;; internally by bcu so we put it in libexec.
+                  (libexec (string-append out "/libexec/bcu")))
+             (mkdir-p libexec)
+             (copy-recursively (assoc-ref %build-inputs "source") libexec)
+             ;; Create a bcu.sh wrapping script manually that ensures
+             ;; we prepend necessary PATHs.
+             (mkdir-p bin)
+             (let* ((bcu.sh (string-append bin "/bcu.sh"))
+                    (path (string-append
+                               "/run/setuid-programs"
+                               ":" bash "/bin"
+                               ":" (assoc-ref %build-inputs "bindutils") "/bin"
+                               ":" (assoc-ref %build-inputs "coreutils") "/bin"
+                               ":" (assoc-ref %build-inputs "ctypes.sh") "/bin"
+                               ":" (assoc-ref %build-inputs "curl") "/bin"
+                               ":" (assoc-ref %build-inputs "diffutils") "/bin"
+                               ":" (assoc-ref %build-inputs "ed") "/bin"
+                               ":" (assoc-ref %build-inputs "expect") "/bin"
+                               ":" (assoc-ref %build-inputs "find") "/bin"
+                               ":" (assoc-ref %build-inputs "gawk") "/bin"
+                               ":" (assoc-ref %build-inputs "grep") "/bin"
+                               ":" (assoc-ref %build-inputs "guile") "/bin"
+                               ":" (assoc-ref %build-inputs "inetutils") "/bin"
+                               ":" (assoc-ref %build-inputs "jq") "/bin"
+                               ":" (assoc-ref %build-inputs "libxml2-xpath0") "/bin"
+                               ":" (assoc-ref %build-inputs "netcat") "/bin"
+                               ":" (assoc-ref %build-inputs "nmap") "/bin"
+                               ":" (assoc-ref %build-inputs "pcre/bin") "/bin"
+                               ":" (assoc-ref %build-inputs "perl") "/bin"
+                               ":" (assoc-ref %build-inputs "php") "/bin"
+                               ":" (assoc-ref %build-inputs "prips") "/bin"
+                               ":" (assoc-ref %build-inputs "python") "/bin"
+                               ":" (assoc-ref %build-inputs "python-yq") "/bin"
+                               ":" (assoc-ref %build-inputs "sed") "/bin"
+                               ":" (assoc-ref %build-inputs "socat") "/bin"
+                               ":" (assoc-ref %build-inputs "util-linux") "/bin"
+                               ":" (assoc-ref %build-inputs "which") "/bin"
+                               ":" (assoc-ref %build-inputs "xdg-utils") "/bin"
+                               ":" (assoc-ref %build-inputs "yad") "/bin")))
+               (with-output-to-file bcu.sh
+                 (lambda _
+                   (display (string-append "#!" bash "/bin/bash\n"))
+                   (display "[[ \"$_BCU_SH_LOADED\" == YES ]] || { \n")
+                   (display (string-append "export PATH=\"" path
+                                           "${PATH:+:}${PATH}\"\n"))
+                   (display (string-append "export PYTHONPATH=\"" pylibsline
+                                           "${PYTHONPATH:+:}${PYTHONPATH}\"\n"))
+                   (display
+                    (string-append "export GUILE_LOAD_PATH=\"" g-bash-lib
+                                   "${GUILE_LOAD_PATH:+:}${GUILE_LOAD_PATH}\"\n"))
+                   ;; XDG_DATA_DIRS needs set for yad to load icons properly.
+                   (display (string-append
+                             "[[ -e /run/current-system/profile/share ]] && "
+                             "export XDG_DATA_DIRS="
+                             "/run/current-system/profile/share"
+                             "${XDG_DATA_DIRS:+:}${XDG_DATA_DIRS}\n"))
+                   (display (string-append "source " libexec "/bcu.sh\n"))
+                   (display "}\n")))
+               (chmod bcu.sh #o555)
+               (setenv "PATH" (string-append path ":" (getenv "PATH"))))
+             (substitute* (find-files out ".*\\.sh")
+               (("~/\\.guix-profile/lib/bash/libguile-bash\\.so")
+                (string-append guile-bash "/lib/bash/libguile-bash.so"))
+               (("\"\\$GUIX_PROFILE\"/lib/bash/libguile-bash\\.so")
+                (string-append guile-bash "/lib/bash/libguile-bash.so")))
+             (for-each (lambda (file)
+                         (patch-shebang file))
+                       (find-files out ".*\\.(sh|scm|awk|php|py)$")   )
+             ;; Set up PATH for tests.
+             (setenv "PATH" (string-append bin ":" (getenv "PATH")))
+             ;; Some tests need a HOME directory.
+             (setenv "HOME" "/tmp")
+             ;; Disable network tests, and all tests for setopts which
+             ;; don't work inside the Guix build environment.
+             (with-output-to-file (string-append libexec "/disabled_tests.txt")
+               (lambda _
+                 (format #t "~{~a~%~}"
+                         (list "ip_of_test_1"
+                               "setopts_test_1"
+                               "setopts_test_2"
+                               "setopts_test_3"
+                               "setopts_test_4"
+                               "setopts_test_5"
+                               "setopts_test_6"))))
+             (invoke (string-append libexec "/bcu-test.sh"))))))
+      (home-page "https://gitlab.com/methuselah-0/bash-coding-utils.sh")
+      (synopsis "Functions and tools for software prototyping in Bash")
+      (description
+       "This package contains Bash functions and wrappers that can be useful
+when writing quick implementations of new programs.  It helps you work with
+JSON, XML, and parallelization, and installs some commonly used helper programs
+used in Bash scripting.  Just run @command{. bcu.sh}, type @command{bcu__}, hit
+@key{TAB} to see available functions and give any of them the @code{--help}
+flag to see how to use it, or run @command{bcu__docs} for the full HTML
+documentation.")
+      (license license:gpl3))))
-- 
2.34.0