[bug#56354] [PATCH] gnu: engineering: Add candle.

[bug#56354] [PATCH] gnu: engineering: Add candle.

[Artyom V. Poptsov]

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Hello,

this patch adds Candle[1] CNC controller.


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From a3c57bbd8cb9f87a92e063d02e69aa2f29f6a895 Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Sat, 2 Jul 2022 12:37:13 +0300
Subject: [PATCH] gnu: engineering: Add candle.

* gnu/packages/engineering.scm (candle): New variable.
---
 gnu/packages/engineering.scm | 37 ++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 661078594e..3bae7d100e 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3702,19 +3702,32 @@ (define-public candle
               (sha256
                (base32
                 "1rinblzqg8xbi4zcyx6v3k7g2kdrgmwm7xwb6fryb8s0bd21jppv"))))
-    (build-system qt-build-system)
-    ;; (native-inputs
-    ;;  ())
-    ;; (inputs)
+    (build-system gnu-build-system)
+    (native-inputs (list qttools))
+    (inputs (list qtbase-5 qtserialport))
     (arguments
-     (list #:phases
-           #~(modify-phases %standard-phases
-               (replace 'configure
-                 (lambda* (#:key outputs #:allow-other-keys)
-                   (chdir "src")
-                   (invoke "qmake"
-                           (string-append "PREFIX=" (assoc-ref outputs "out")))
-                   #t)))))
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'fix-sources
+                    (lambda _
+                      (substitute* (find-files "." ".*\\.h")
+                        (("const char\\* what\\(\\) const override")
+                         "const char* what() const noexcept override"))))
+                  (replace 'configure
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (chdir "src")
+                        (invoke "qmake"))))
+                  (add-after 'configure 'fix-makefile
+                    (lambda _
+                      (substitute* "Makefile"
+                        (("-pipe -Z7") "-pipe")
+                        (("LFLAGS.*=.*DEBUG .*OPT:REF -Wl,-O1")
+                         "LFLAGS        = -Wl,-O1"))))
+                  (replace 'install
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (install-file "Candle"
+                                      (string-append out "/bin"))))))))
     (home-page "https://github.com/Denvi/Candle")
     (synopsis "GRBL controller with G-Code visualizer")
     (description
-- 
2.34.1


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Thanks,

- Artyom

References:
1. https://github.com/Denvi/Candle

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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[bug#56354] [PATCH] gnu: engineering: Add candle.

[Artyom V. Poptsov]

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Hello,

I found out that the patch I've sent was broken in two ways: firstly, it
contains only part of my changes; secondly, Candle fails to store its
settings as it tries to store it in the same directory where the binary
stored.

Here's the updated patch.


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From e4530e457e465243dae5b58eb8b7fa2e3951757d Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Thu, 23 Jun 2022 23:02:40 +0300
Subject: [PATCH] gnu: engineering: Add candle.

* gnu/packages/engineering.scm (candle): New variable.
---
 gnu/packages/engineering.scm | 62 ++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index fe8ab13298..b4f0b5e020 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3688,3 +3688,65 @@ (define-public xschem
 netlists from the drawn schematic, allowing the simulation of the circuit.")
       (home-page "https://xschem.sourceforge.io/stefan/index.html")
       (license license:gpl2+))))
+
+(define-public candle
+  (package
+    (name "candle")
+    (version "1.2b")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/Denvi/Candle")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1rinblzqg8xbi4zcyx6v3k7g2kdrgmwm7xwb6fryb8s0bd21jppv"))))
+    (build-system gnu-build-system)
+    (native-inputs (list qttools))
+    (inputs (list qtbase-5 qtserialport))
+    (arguments
+     `(#:tests? #f                      ; no tests.
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'fix-sources
+                    (lambda _
+                      (substitute* (find-files "." ".*\\.h")
+                        (("const char\\* what\\(\\) const override")
+                         "const char* what() const noexcept override"))))
+                  (add-after 'fix-sources 'fix-application-settings-path
+                    (lambda _
+                      (substitute* "src/frmmain.cpp"
+                        (("qApp->applicationDirPath\\(\\) \\+ \"\\/settings\\.ini\"")
+                         "QDir::homePath() + \"/.config/candle.ini\""))))
+                  (replace 'configure
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (chdir "src")
+                        (invoke "qmake"))))
+                  (add-after 'configure 'fix-makefile
+                    (lambda _
+                      (substitute* "Makefile"
+                        (("-pipe -Z7") "-pipe")
+                        (("LFLAGS.*=.*DEBUG .*OPT:REF -Wl,-O1")
+                         "LFLAGS        = -Wl,-O1"))))
+                  (replace 'install
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      (let ((out (assoc-ref outputs "out")))
+                        (install-file "Candle"
+                                      (string-append out "/bin"))))))))
+    (home-page "https://github.com/Denvi/Candle")
+    (synopsis "GRBL controller with G-Code visualizer")
+    (description
+     "GRBL controller application with G-Code visualizer written in Qt.
+
+Supported functions:
+
+@itemize
+@item Controlling GRBL-based cnc-machine via console commands, buttons on
+form, numpad.
+@item Monitoring CNC-machine state.
+@item Loading, editing, saving and sending of G-code files to CNC-machine.
+@item Visualizing G-code files.
+@end itemize")
+    (license license:gpl3)))
+
-- 
2.34.1


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Thanks

- Artyom

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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[bug#56354] Review

[Jean Pierre De Jesus DIAZ via Guix-patches via]

>+    (arguments
>+     `(#:tests? #f                      ; no tests.
>+       #:phases (modify-phases %standard-phases

Can be changed to use G-Expressions:

(arguments
  (list #:tests? #f                       ;; no tests.
        #:phases
        #~(modify-phases %standard-phases
            ...)))

See, https://guix.gnu.org/manual/en/html_node/G_002dExpressions.html

>+                  (add-after 'fix-sources 'fix-application-settings-path

Doesn't depend on 'fix-sources, so it's fine to add after 'unpack.

>+                  (replace 'configure
>+                    (lambda* (#:key outputs #:allow-other-keys)
>+                      (let ((out (assoc-ref outputs "out")))
>+                        (chdir "src")
>+                        (invoke "qmake"))))

It may also be a good idea to set `QMAKE_CC' variable for cross-compilation,
like:

`(invoke "qmake" (string-append "QMAKE_CC=" #$(cc-for-target)))'

And also test cross-compilation:

./pre-inst-env guix build candle \
                          --keep-failed \
                          --target=aarch64-linux-gnu

>+                  (add-after 'configure 'fix-makefile
>+                    (lambda _
>+                      (substitute* "Makefile"
>+                        (("-pipe -Z7") "-pipe")
>+                        (("LFLAGS.*=.*DEBUG .*OPT:REF -Wl,-O1")
>+                         "LFLAGS        = -Wl,-O1"))))

Could this instead be replaced on the `candle.pro' file?

—
Jean-Pierre De Jesus DIAZ

[bug#56354] [PATCH] gnu: engineering: Add candle.

[Artyom V. Poptsov]

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Hello Jean Pierre De Jesus DIAZ,

I almost overlooked your message from debbugs as it wasn't delivered to
my mailbox.  Thanks for the patch review!

> Can be changed to use G-Expressions:

Done.

> >+                  (add-after 'fix-sources 'fix-application-settings-path
> Doesn't depend on 'fix-sources, so it's fine to add after 'unpack.

Done.

> It may also be a good idea to set `QMAKE_CC' variable for cross-compilation,
> like:
>
> `(invoke "qmake" (string-append "QMAKE_CC=" #$(cc-for-target)))'

Done.

But I wasn't able to run cross-compilation with the command you
provided:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix build --keep-failed --target=aarch64-linux-gnu candle
guix build: error: gnu/packages/freedesktop.scm:1921:2: perl-file-mimeinfo@0.29: build system `perl' does not support cross builds
--8<---------------cut here---------------end--------------->8---

It seems to me from the message that the issue is not in the candle
package itself.

> >+                  (add-after 'configure 'fix-makefile
> >+                    (lambda _
> >+                      (substitute* "Makefile"
> >+                        (("-pipe -Z7") "-pipe")
> >+                        (("LFLAGS.*=.*DEBUG .*OPT:REF -Wl,-O1")
> >+                         "LFLAGS        = -Wl,-O1"))))
>
> Could this instead be replaced on the `candle.pro' file?

I fixed it by using the latest commit from the 'master' branch instead
of 1.2b tag.

Please find the updated patch attached.

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From 3830792f316287de22fa62b2adff6aeb2b94a160 Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Thu, 23 Jun 2022 23:02:40 +0300
Subject: [PATCH] gnu: engineering: Add candle.

* gnu/packages/engineering.scm (candle): New variable.
---
 gnu/packages/engineering.scm | 63 ++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index fe8ab13298..a3445343fc 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3688,3 +3688,66 @@ (define-public xschem
 netlists from the drawn schematic, allowing the simulation of the circuit.")
       (home-page "https://xschem.sourceforge.io/stefan/index.html")
       (license license:gpl2+))))
+
+(define-public candle
+  ;; The latest tagged version 1.2b fails on the build stage due to
+  ;; non-supported g++ flags so we need to use the latest commit from the
+  ;; 'master' branch in the repository.
+  (let ((commit   "3f763bcde1195e23ba119a5b3c70d7c889881019")
+        (revision "1"))
+    (package
+      (name "candle")
+      (version (git-version "1.2b" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/Denvi/Candle")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "08rqhl6a5a8s67a8yl16944zgcsnnb08xfv4klzyqwlvaqgfp783"))))
+      (build-system gnu-build-system)
+      (native-inputs (list qttools))
+      (inputs (list qtbase-5 qtserialport))
+      (arguments
+       (list #:tests? #f                      ; no tests.
+             #:phases #~(modify-phases %standard-phases
+                          (add-after 'unpack 'fix-sources
+                            (lambda _
+                              (substitute* (find-files "." ".*\\.h")
+                                (("const char\\* what\\(\\) const override")
+                                 "const char* what() const noexcept override"))))
+                          (add-after 'unpack 'fix-application-settings-path
+                            (lambda _
+                              (substitute* "src/frmmain.cpp"
+                                (("qApp->applicationDirPath\\(\\) \\+ \"\\/settings\\.ini\"")
+                                 "QDir::homePath() + \"/.config/candle.ini\""))))
+                          (replace 'configure
+                            (lambda* (#:key outputs #:allow-other-keys)
+                              (let ((out (assoc-ref outputs "out")))
+                                (chdir "src")
+                                (invoke "qmake"
+                                        (string-append "QMAKE_CC="
+                                                       #$(cc-for-target))))))
+                          (replace 'install
+                            (lambda* (#:key outputs #:allow-other-keys)
+                              (let ((out (assoc-ref outputs "out")))
+                                (install-file "Candle"
+                                              (string-append out "/bin"))))))))
+      (home-page "https://github.com/Denvi/Candle")
+      (synopsis "GRBL controller with G-Code visualizer")
+      (description
+       "GRBL controller application with G-Code visualizer written in Qt.
+
+Supported functions:
+
+@itemize
+@item Controlling GRBL-based cnc-machine via console commands, buttons on
+form, numpad.
+@item Monitoring CNC-machine state.
+@item Loading, editing, saving and sending of G-code files to CNC-machine.
+@item Visualizing G-code files.
+@end itemize")
+      (license license:gpl3))))
+
-- 
2.34.1


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Thanks,

- Artyom

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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[bug#56354] [PATCH] gnu: engineering: Add candle.

[Jean Pierre De Jesus DIAZ via Guix-patches via]

Hello Artyom,

>It seems to me from the message that the issue is not in the candle
>package itself.

Probably one of the dependencies can't (currently) be cross-compiled,
anyway, thanks for setting the QMAKE_CC variable in the qmake invocation,
once perl build system gains cross-compilation (if possible) then it
would be easier to cross-compile later without modifications to the
package.

>+                            (lambda* (#:key outputs #:allow-other-keys)
>+                              (let ((out (assoc-ref outputs "out")))
>+                                (chdir "src")
>+                                (invoke "qmake"
>+                                        (string-append "QMAKE_CC="
>+                                                       #$(cc-for-target))))))

The `out' variable is not used, so the let can be safely removed and the lambda
simplified, also instead of `chdir', `with-directory-excursion' could be used,
but's a matter of preference (don't know if one or other style is preferred
inside GNU Guix).

For example:

(lambda _
  (with-directory-excursion "src"
    (invoke "qmake"
      (string-append "QMAKE_CC="
                     #$(cc-for-target)))))

>+                          (replace 'install
>+                            (lambda* (#:key outputs #:allow-other-keys)
>+                              (let ((out (assoc-ref outputs "out")))
>+                                (install-file "Candle"
>+                                              (string-append out "/bin"))))))))

The `out' binding can be also replaced by `#$output', e.g.:


(lambda* _
  (install-file "Candle"
                (string-append #$output "/bin")))

Other than that the package definition looks good to me, and did a quick pass
over the Candle source code to check that it doesn't contain any malware.

Only a bundled font is present (src/fonts/Ubuntu-Regular.tff), but that one is
not provided by GNU Guix (don't know the specific reasons, but got added then
removed) so no need to replace it with provided ones.

—
Jean-Pierre De Jesus DIAZ

[bug#56354] [PATCH] gnu: engineering: Add candle.

[Artyom V. Poptsov]

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Hello Jean Pierre De Jesus DIAZ.

> The `out' variable is not used, so the let can be safely removed and the lambda
> simplified, also instead of `chdir', `with-directory-excursion' could be used,
> but's a matter of preference (don't know if one or other style is preferred
> inside GNU Guix).

Done.

> The `out' binding can be also replaced by `#$output', e.g.:

Done.

I also tried to use 'with-directory-excursion' instead of 'chdir' but
Candle build fails with it, so I kept 'chdir' version.

> Other than that the package definition looks good to me, and did a quick pass
> over the Candle source code to check that it doesn't contain any malware.

> Only a bundled font is present (src/fonts/Ubuntu-Regular.tff), but that one is
> not provided by GNU Guix (don't know the specific reasons, but got added then
> removed) so no need to replace it with provided ones.

Thanks again for the patch review!

Here's my updated patch.

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From 7aac50730febeb95d0f7a4ab1cbb6e7dfb632553 Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Thu, 23 Jun 2022 23:02:40 +0300
Subject: [PATCH] gnu: engineering: Add candle.

* gnu/packages/engineering.scm (candle): New variable.
---
 gnu/packages/engineering.scm | 61 ++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index fe8ab13298..e1297c0f85 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3688,3 +3688,64 @@ (define-public xschem
 netlists from the drawn schematic, allowing the simulation of the circuit.")
       (home-page "https://xschem.sourceforge.io/stefan/index.html")
       (license license:gpl2+))))
+
+(define-public candle
+  ;; The latest tagged version 1.2b fails on the build stage due to
+  ;; non-supported g++ flags so we need to use the latest commit from the
+  ;; 'master' branch in the repository.
+  (let ((commit   "3f763bcde1195e23ba119a5b3c70d7c889881019")
+        (revision "1"))
+    (package
+      (name "candle")
+      (version (git-version "1.2b" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/Denvi/Candle")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "08rqhl6a5a8s67a8yl16944zgcsnnb08xfv4klzyqwlvaqgfp783"))))
+      (build-system gnu-build-system)
+      (native-inputs (list qttools))
+      (inputs (list qtbase-5 qtserialport))
+      (arguments
+       (list #:tests? #f                      ; no tests.
+             #:phases #~(modify-phases %standard-phases
+                          (add-after 'unpack 'fix-sources
+                            (lambda _
+                              (substitute* (find-files "." ".*\\.h")
+                                (("const char\\* what\\(\\) const override")
+                                 "const char* what() const noexcept override"))))
+                          (add-after 'unpack 'fix-application-settings-path
+                            (lambda _
+                              (substitute* "src/frmmain.cpp"
+                                (("qApp->applicationDirPath\\(\\) \\+ \"\\/settings\\.ini\"")
+                                 "QDir::homePath() + \"/.config/candle.ini\""))))
+                          (replace 'configure
+                            (lambda _
+                              (chdir "src")
+                              (invoke "qmake"
+                                      (string-append "QMAKE_CC="
+                                                     #$(cc-for-target)))))
+                          (replace 'install
+                            (lambda _
+                              (install-file "Candle"
+                                            (string-append #$output "/bin")))))))
+      (home-page "https://github.com/Denvi/Candle")
+      (synopsis "GRBL controller with G-Code visualizer")
+      (description
+       "GRBL controller application with G-Code visualizer written in Qt.
+
+Supported functions:
+
+@itemize
+@item Controlling GRBL-based cnc-machine via console commands, buttons on
+form, numpad.
+@item Monitoring CNC-machine state.
+@item Loading, editing, saving and sending of G-code files to CNC-machine.
+@item Visualizing G-code files.
+@end itemize")
+      (license license:gpl3))))
+
-- 
2.34.1


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- Artyom

-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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bug#56354: [PATCH] gnu: engineering: Add candle.

[Ludovic Courtès]

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Hi,

"Artyom V. Poptsov" <poptsov.artyom@gmail.com> skribis:

> From 7aac50730febeb95d0f7a4ab1cbb6e7dfb632553 Mon Sep 17 00:00:00 2001
> From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
> Date: Thu, 23 Jun 2022 23:02:40 +0300
> Subject: [PATCH] gnu: engineering: Add candle.
>
> * gnu/packages/engineering.scm (candle): New variable.

Applied with the changes below.  Note that the license is GPLv3+ because
nothing says it’s “version 3 only”.  I tweaked the description as per
<https://guix.gnu.org/manual/devel/en/html_node/Synopses-and-Descriptions.html>.

Thank you, and thanks Jean-Pierre for reviewing!

Ludo’.


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diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index e1297c0f85..dd594af7f8 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -3721,7 +3721,8 @@ (define-public candle
                           (add-after 'unpack 'fix-application-settings-path
                             (lambda _
                               (substitute* "src/frmmain.cpp"
-                                (("qApp->applicationDirPath\\(\\) \\+ \"\\/settings\\.ini\"")
+                                (("\
+qApp->applicationDirPath\\(\\) \\+ \"\\/settings\\.ini\"")
                                  "QDir::homePath() + \"/.config/candle.ini\""))))
                           (replace 'configure
                             (lambda _
@@ -3736,9 +3737,10 @@ (define-public candle
       (home-page "https://github.com/Denvi/Candle")
       (synopsis "GRBL controller with G-Code visualizer")
       (description
-       "GRBL controller application with G-Code visualizer written in Qt.
+       "Candle is a GRBL controller application with a visualizer for G-Code,
+the @acronym{CNC, computer numerical control} programming language.
 
-Supported functions:
+Supported functions include:
 
 @itemize
 @item Controlling GRBL-based cnc-machine via console commands, buttons on
@@ -3747,5 +3749,4 @@ (define-public candle
 @item Loading, editing, saving and sending of G-code files to CNC-machine.
 @item Visualizing G-code files.
 @end itemize")
-      (license license:gpl3))))
-
+      (license license:gpl3+))))