[bug#32608] [PATCH] gnu: haskell-mode: Fix test failure.

[bug#32608] [PATCH] gnu: haskell-mode: Fix test failure.

[Alex Vong]

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Hello guix,

I manage to fix all test failures of haskell-mode (which FTBFS for a
long time). I use Jack's bug report
<https://github.com/haskell/haskell-mode/issues/1601> as a starting
point and continue from there. The fix consists of backporting 2 commits
from upstream and hard-coding the filename in the tests. (This is okay
since the tests will not be installed.) 

Let's write some Haskell for good (`･ω･´)


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From 99fefcd43adbe8effe24480e64f9fa0b461b8fe5 Mon Sep 17 00:00:00 2001
From: Alex Vong <alexvong1995@gmail.com>
Date: Sun, 2 Sep 2018 07:47:05 +0800
Subject: [PATCH] gnu: haskell-mode: Fix test failure.

Thanks to Jack Hill <jackhill@jackhill.us> for exploring differnt solutions
at <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=31726>.

* gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch,
gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch:
New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/emacs.scm (haskell-mode)[source]: Use them.
[arguments]: Adjust 'pre-build' phase to embed filename.
---
 gnu/local.mk                                  |  2 +
 gnu/packages/emacs.scm                        | 17 ++++---
 ...ode-Removed-unused-lexical-variables.patch | 44 +++++++++++++++++++
 ...-removed-check-conventions-from-make.patch | 35 +++++++++++++++
 4 files changed, 91 insertions(+), 7 deletions(-)
 create mode 100644 gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch
 create mode 100644 gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 91de38c5a..7bb88f151 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -791,6 +791,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/gtkglext-disable-disable-deprecated.patch \
   %D%/packages/patches/gzdoom-search-in-installed-share.patch	\
   %D%/packages/patches/handbrake-pkg-config-path.patch		\
+  %D%/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch	\
+  %D%/packages/patches/haskell-mode-removed-check-conventions-from-make.patch	\
   %D%/packages/patches/hdf4-architectures.patch 		\
   %D%/packages/patches/hdf4-reproducibility.patch 		\
   %D%/packages/patches/hdf4-shared-fortran.patch 		\
diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index a1ce64ffa..b6121961d 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -646,7 +646,11 @@ only a handful of functions that are not resource-specific.")
                     "https://github.com/haskell/haskell-mode/archive/v"
                     version ".tar.gz"))
               (sha256
-               (base32 "0g6lcjw7lcgavv3yrd8xjcyqgfyjl787y32r1z14amw2f009m78h"))))
+               (base32 "0g6lcjw7lcgavv3yrd8xjcyqgfyjl787y32r1z14amw2f009m78h"))
+              (patches
+               (search-patches ; backport test failure fixes
+                "haskell-mode-Removed-unused-lexical-variables.patch"
+                "haskell-mode-removed-check-conventions-from-make.patch"))))
     (inputs
      `(("emacs-el-search" ,emacs-el-search) ; for tests
        ("emacs-stream" ,emacs-stream)))     ; for tests
@@ -686,12 +690,11 @@ only a handful of functions that are not resource-specific.")
                               (_ ""))
                             inputs)))
               (substitute* (find-files "." "\\.el") (("/bin/sh") sh))
-              (substitute* "tests/haskell-code-conventions.el"
-                ;; Function name recently changed in "emacs-el-search".
-                (("el-search--search-pattern") "el-search-forward")
-                ;; Don't contact home.
-                (("\\(when \\(>= emacs-major-version 25\\)")
-                 "(require 'el-search) (when nil"))
+              ;; embed filename to fix test failure
+              (let ((file "tests/haskell-cabal-tests.el"))
+                (substitute* file
+                  (("\\(buffer-file-name\\)")
+                   (format #f "(or (buffer-file-name) ~s)" file))))
               #t)))
          (replace
           'install
diff --git a/gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch b/gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch
new file mode 100644
index 000000000..b175fae28
--- /dev/null
+++ b/gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch
@@ -0,0 +1,44 @@
+Copied verbatim from upstream repository.
+
+From cee22450ee30e79952f594796721dc6b17798ee6 Mon Sep 17 00:00:00 2001
+From: Sascha Wilde <wilde@sha-bang.de>
+Date: Fri, 23 Sep 2016 15:35:59 +0200
+Subject: [PATCH] Removed unused lexical variables.
+
+---
+ haskell-lexeme.el  | 3 +--
+ haskell-process.el | 4 +---
+ 2 files changed, 2 insertions(+), 5 deletions(-)
+
+diff --git a/haskell-lexeme.el b/haskell-lexeme.el
+index 4256a79..b832560 100644
+--- a/haskell-lexeme.el
++++ b/haskell-lexeme.el
+@@ -138,8 +138,7 @@ When match is successful, match-data will contain:
+   (match-text 2) - whole qualified identifier
+   (match-text 3) - unqualified part of identifier
+   (match-text 4) - closing backtick"
+-  (let ((begin (point))
+-        (match-data-old (match-data))
++  (let ((match-data-old (match-data))
+         first-backtick-start
+         last-backtick-start
+         qid-start
+diff --git a/haskell-process.el b/haskell-process.el
+index b4efba2..4f3f859 100644
+--- a/haskell-process.el
++++ b/haskell-process.el
+@@ -160,9 +160,7 @@ HPTYPE is the result of calling `'haskell-process-type`' function."
+ (defun haskell-process-log (msg)
+   "Effective append MSG to the process log (if enabled)."
+   (when haskell-process-log
+-    (let* ((append-to (get-buffer-create "*haskell-process-log*"))
+-           (windows (get-buffer-window-list append-to t t))
+-           move-point-in-windows)
++    (let* ((append-to (get-buffer-create "*haskell-process-log*")))
+       (with-current-buffer append-to
+         ;; point should follow insertion so that it stays at the end
+         ;; of the buffer
+-- 
+2.18.0
+
diff --git a/gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch b/gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch
new file mode 100644
index 000000000..a4d4d525f
--- /dev/null
+++ b/gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch
@@ -0,0 +1,35 @@
+Copied from upstream repository.
+Hunk #2 is removed since it cannot be applied and it is not needed.
+
+From 7cead7137bf54851c1b7df5a3854351296d21276 Mon Sep 17 00:00:00 2001
+From: Vasantha Ganesh K <vasanthaganesh.k@tuta.io>
+Date: Thu, 22 Jun 2017 23:38:40 +0530
+Subject: [PATCH] removed `check-conventions' from make
+
+---
+ Makefile                          |   7 +-
+ tests/haskell-code-conventions.el | 165 ------------------------------
+ 2 files changed, 1 insertion(+), 171 deletions(-)
+ delete mode 100644 tests/haskell-code-conventions.el
+
+diff --git a/Makefile b/Makefile
+index b2c89d6..aa907c5 100644
+--- a/Makefile
++++ b/Makefile
+@@ -79,12 +79,7 @@ build-$(EMACS_VERSION)/build-flag : build-$(EMACS_VERSION) $(patsubst %.el,build
+ check-%: tests/%-tests.el
+ 	$(BATCH) -l "$<" -f ert-run-tests-batch-and-exit;
+ 
+-check: compile $(AUTOLOADS) check-ert check-conventions
+-
+-check-conventions :
+-	$(BATCH) -l tests/haskell-code-conventions.el                                           \
+-                 -f haskell-check-conventions-batch-and-exit
+-	@echo "conventions are okay"
++check: compile $(AUTOLOADS) check-ert
+ 
+ check-ert: $(ELCHECKS)
+ 	$(BATCH) --eval "(when (= emacs-major-version 24)					\
+-- 
+2.18.0
+
-- 
2.18.0


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Cheers,
Alex

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bug#31726: [bug#32608] [PATCH] gnu: haskell-mode: Fix test failure.

[Ludovic Courtès]

Hi Alex,

Alex Vong <alexvong1995@gmail.com> skribis:

> I manage to fix all test failures of haskell-mode (which FTBFS for a
> long time). I use Jack's bug report
> <https://github.com/haskell/haskell-mode/issues/1601> as a starting
> point and continue from there. The fix consists of backporting 2 commits
> from upstream and hard-coding the filename in the tests. (This is okay
> since the tests will not be installed.) 

Awesome.

> Let's write some Haskell for good (`･ω･´)

:-)

> From 99fefcd43adbe8effe24480e64f9fa0b461b8fe5 Mon Sep 17 00:00:00 2001
> From: Alex Vong <alexvong1995@gmail.com>
> Date: Sun, 2 Sep 2018 07:47:05 +0800
> Subject: [PATCH] gnu: haskell-mode: Fix test failure.
>
> Thanks to Jack Hill <jackhill@jackhill.us> for exploring differnt solutions
> at <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=31726>.
>
> * gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch,
> gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch:
> New files.
> * gnu/local.mk (dist_patch_DATA): Add them.
> * gnu/packages/emacs.scm (haskell-mode)[source]: Use them.
> [arguments]: Adjust 'pre-build' phase to embed filename.

I’ve shorted the patch file names as suggested by ‘guix lint’, added a
“Fixes” line in the commit log, and applied.

Thanks to both of you!

Ludo’.

bug#32608: [PATCH] gnu: haskell-mode: Fix test failure.

[Ludovic Courtès]

Hi Alex,

Alex Vong <alexvong1995@gmail.com> skribis:

> I manage to fix all test failures of haskell-mode (which FTBFS for a
> long time). I use Jack's bug report
> <https://github.com/haskell/haskell-mode/issues/1601> as a starting
> point and continue from there. The fix consists of backporting 2 commits
> from upstream and hard-coding the filename in the tests. (This is okay
> since the tests will not be installed.) 

Awesome.

> Let's write some Haskell for good (`･ω･´)

:-)

> From 99fefcd43adbe8effe24480e64f9fa0b461b8fe5 Mon Sep 17 00:00:00 2001
> From: Alex Vong <alexvong1995@gmail.com>
> Date: Sun, 2 Sep 2018 07:47:05 +0800
> Subject: [PATCH] gnu: haskell-mode: Fix test failure.
>
> Thanks to Jack Hill <jackhill@jackhill.us> for exploring differnt solutions
> at <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=31726>.
>
> * gnu/packages/patches/haskell-mode-Removed-unused-lexical-variables.patch,
> gnu/packages/patches/haskell-mode-removed-check-conventions-from-make.patch:
> New files.
> * gnu/local.mk (dist_patch_DATA): Add them.
> * gnu/packages/emacs.scm (haskell-mode)[source]: Use them.
> [arguments]: Adjust 'pre-build' phase to embed filename.

I’ve shorted the patch file names as suggested by ‘guix lint’, added a
“Fixes” line in the commit log, and applied.

Thanks to both of you!

Ludo’.