[bug#57069] [PATCH 1/4] etc: Add tempel snippets.

[Nicolas Graves]

* doc/contributing.texi:
  - adding configuration description for tempel snippets.
  - adapting yasnippet configuration to directory move.
* etc/snippets/tempel/*.eld: adding alternative to current yasnippets.
* etc/snippets*-mode: moved to /etc/snippets/yas/*-mode not to conflit with
tempel snippets.
---
 doc/contributing.texi                         |  17 ++-
 etc/snippets/tempel/scheme-mode.eld           | 112 ++++++++++++++++++
 etc/snippets/tempel/text-mode.eld             | 101 ++++++++++++++++
 .../{ => yas}/scheme-mode/guix-bzr-reference  |   0
 .../{ => yas}/scheme-mode/guix-cvs-reference  |   0
 .../{ => yas}/scheme-mode/guix-git-reference  |   0
 .../{ => yas}/scheme-mode/guix-hg-reference   |   0
 .../{ => yas}/scheme-mode/guix-origin         |   0
 .../{ => yas}/scheme-mode/guix-package        |   0
 .../{ => yas}/scheme-mode/guix-svn-reference  |   0
 .../guix-commit-message-add-cl-package        |   0
 .../text-mode/guix-commit-message-add-package |   0
 .../guix-commit-message-remove-package        |   0
 .../guix-commit-message-rename-package        |   0
 .../guix-commit-message-update-package        |   0
 .../guix-commit-message-use-https-home-page   |   0
 16 files changed, 225 insertions(+), 5 deletions(-)
 create mode 100644 etc/snippets/tempel/scheme-mode.eld
 create mode 100644 etc/snippets/tempel/text-mode.eld
 rename etc/snippets/{ => yas}/scheme-mode/guix-bzr-reference (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-cvs-reference (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-git-reference (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-hg-reference (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-origin (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-package (100%)
 rename etc/snippets/{ => yas}/scheme-mode/guix-svn-reference (100%)
 rename etc/snippets/{ => yas}/text-mode/guix-commit-message-add-cl-package 
(100%)
 rename etc/snippets/{ => yas}/text-mode/guix-commit-message-add-package (100%)
 rename etc/snippets/{ => yas}/text-mode/guix-commit-message-remove-package 
(100%)
 rename etc/snippets/{ => yas}/text-mode/guix-commit-message-rename-package 
(100%)
 rename etc/snippets/{ => yas}/text-mode/guix-commit-message-update-package 
(100%)
 rename etc/snippets/{ => 
yas}/text-mode/guix-commit-message-use-https-home-page (100%)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index 02c7c5ae59..808d71e40a 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -320,15 +320,22 @@ s-expression, etc.
 @cindex reducing boilerplate
 We also provide templates for common git commit messages and package
 definitions in the @file{etc/snippets} directory.  These templates can
-be used with @url{https://joaotavora.github.io/yasnippet/, YASnippet} to
-expand short trigger strings to interactive text snippets.  You may want
-to add the snippets directory to the @var{yas-snippet-dirs} variable in
-Emacs.
+be used to expand short trigger strings to interactive text snippets,
+with either @url{https://joaotavora.github.io/yasnippet/, YASnippet} or
+@url{https://github.com/minad/tempel/, Tempel}.  You may want to add the
+@file{etc/snippets/yas} (respectively @file{etc/snippets/tempel/*.eld}
+or selected files) snippets directory to the @var{yas-snippet-dirs}
+(@var{tempel-path} resp.) variable in Emacs.
 
 @lisp
 ;; @r{Assuming the Guix checkout is in ~/src/guix.}
+;; @r{Yasnippet}
 (with-eval-after-load 'yasnippet
-  (add-to-list 'yas-snippet-dirs "~/src/guix/etc/snippets"))
+  (add-to-list 'yas-snippet-dirs "~/src/guix/etc/snippets/yas"))
+;;@r{Tempel}
+(with-eval-after-load 'tempel
+         (add-to-list 'tempel-path
+         "~/src/guix/etc/snippets/tempel/*.eld"))
 @end lisp
 
 The commit message snippets depend on @url{https://magit.vc/, Magit} to
diff --git a/etc/snippets/tempel/scheme-mode.eld 
b/etc/snippets/tempel/scheme-mode.eld
new file mode 100644
index 0000000000..ac48a1038b
--- /dev/null
+++ b/etc/snippets/tempel/scheme-mode.eld
@@ -0,0 +1,112 @@
+-*- mode: lisp-data -*-
+
+scheme-mode
+
+(package...
+ "(define-public " (s name) n>
+ "(package" n>
+ "(name \"" (s name) "\")" n>
+ "(version \"" p "\")" n>
+ "(source origin..." p ")" n>
+ "(build-system \""
+ (p (completing-read "build-system:"
+                     '("android-ndk-build-system"
+                       "ant-build-system"
+                       "asdf-build-system"
+                       "cargo-build-system"
+                       "chicken-build-system"
+                       "clojure-build-system"
+                       "cmake-build-system"
+                       "copy-build-system"
+                       "dub-build-system"
+                       "dune-build-system"
+                       "emacs-build-system"
+                       "font-build-system"
+                       "glib-or-gtk-build-system"
+                       "gnu-build-system"
+                       "go-build-system"
+                       "guile-build-system"
+                       "haskell-build-system"
+                       "julia-build-system"
+                       "linux-module-build-system"
+                       "maven-build-system"
+                       "meson-build-system"
+                       "minetest-build-system"
+                       "minify-build-system"
+                       "node-build-system"
+                       "ocaml-build-system"
+                       "perl-build-system"
+                       "python-build-system"
+                       "qt-build-system"
+                       "r-build-system"
+                       "rakudo-build-system"
+                       "rebar-build-system"
+                       "renpy-build-system"
+                       "ruby-build-system"
+                       "scons-build-system"
+                       "texlive-build-system"
+                       "trivial-build-system"
+                       "waf-build-system")
+                     nil t)) "\")" n>
+ "(home-page \"" p "\")" n>
+ "(synopsis \"" p "\")" n>
+ "(description \"" p "\")" n>
+ "(license " p ")))" n)
+
+(origin...
+ "(origin" n>
+ "(method \""
+ (p (completing-read "method:"
+                     '("url-fetch"
+                       "url-fetch/tarbomb"
+                       "url-fetch/zipbomb"
+                       "cvs-fetch"
+                       "git-fetch"
+                       "hg-fetch"
+                       "svn-fetch"
+                       "bzr-fetch")
+                     nil t) method) "\")" n>
+ "(uri " (cl-case (intern method)
+           ('git-fetch "git-reference...")
+           ('svn-fetch "svn-reference...")
+           ('hg-fetch  "hg-reference...")
+           ('cvs-fetch "cvs-reference...")
+           ('bzr-fetch "bzr-reference...")
+           (t          "(string-append \"https://";))
+ p
+ (if (equal (substring method 0 9)  "url-fetch") "\")")
+ ")" n>
+ (cl-case (intern method)
+   ('git-fetch "(file-name (git-file-name name version))\n")
+   ('hg-fetch "(file-name (hg-file-name name version))\n")
+   ('svn-fetch "(file-name (string-append name \"-\" version 
\"-checkout\"))\n")
+   ('cvs-fetch "(file-name (string-append name \"-\" version 
\"-checkout\"))\n")
+   ('bzr-fetch "(file-name (string-append name \"-\" version 
\"-checkout\"))\n")
+   (t          "")) >
+ "(sha256" n> "(base32 \"" p "\")))")
+
+(git-reference...
+ "(git-reference" n>
+ "(url \"" p "\")" n>
+ "(commit \"" p "\"))")
+
+(svn-reference...
+ "(svn-reference" n>
+ "(url \"" p "\")" n>
+ "(revision \"" p "\"))")
+
+(cvs-reference...
+ "(cvs-reference" n>
+ "(root-directory \"" p "\")" n>
+ "(module \"" p "\")" n>
+ "(revision \"" p "\"))")
+
+(hg-reference...
+ "(hg-reference" n>
+ "(url \"" p "\")" n>
+ "(changeset \"" p "\"))")
+
+(bzr-reference...
+ "(bzr-reference" n>
+ "(url \"" p "\")" n>
+ "(revision \"" p "\"))")
diff --git a/etc/snippets/tempel/text-mode.eld 
b/etc/snippets/tempel/text-mode.eld
new file mode 100644
index 0000000000..a51a6719d7
--- /dev/null
+++ b/etc/snippets/tempel/text-mode.eld
@@ -0,0 +1,101 @@
+-*- mode: lisp-data -*-
+
+text-mode :when (git-commit-mode)
+
+(add
+ "gnu: Add "
+ (p
+  (with-temp-buffer
+    (magit-git-wash #'magit-diff-wash-diffs
+      "diff" "--staged")
+    (goto-char (point-min))
+    (when (re-search-forward "\\+(define-public \\(\\S-+\\)" nil 'noerror)
+      (match-string-no-properties 1)))
+  var ) "." n n
+ "* " (car (magit-staged-files)) " (" (s var ) "): New variable.")
+
+(remove
+ "gnu: Remove "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (goto-char (point-min))
+      (when (re-search-forward "\\-(define-public \\(\\S-+\\)" nil 'noerror)
+        (match-string-no-properties 1)))
+    var) "." n n
+ "* " (car (magit-staged-files)) " (" (s var) "): Delete variable.")
+
+(rename
+ "gnu: "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (beginning-of-buffer)
+      (when (search-forward "-(define-public " nil 'noerror)
+        (thing-at-point 'sexp 'no-properties)))
+    prev-var)
+ ": Rename package to "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (beginning-of-buffer)
+      (when (search-forward "+(define-public " nil 'noerror)
+        (thing-at-point 'sexp 'no-properties)))
+    new-var) "." n n
+ "* " (car (magit-staged-files)) " (" (s prev-var) "): Define in terms of" n
+ "'deprecated-package'." n
+ "(" (s new-var) "): New variable, formerly known as \"" (s prev-var) "\".")
+
+(update
+ "gnu: "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (goto-char (point-min))
+      (when (re-search-forward "^[ ]*(define-public \\(\\S-+\\)" nil 'noerror)
+        (match-string-no-properties 1)))
+    var)
+ ": Update to "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (goto-char (point-min))
+      (search-forward "name" nil 'noerror)
+      (search-forward "+" nil 'noerror)   ; first change
+      (when (and (search-forward "version " nil 'noerror)
+                 (looking-at-p "\""))
+        (let ((end (save-excursion (search-forward "\")" nil 'noerror))))
+          (when end
+            (forward-char)
+            (buffer-substring-no-properties (point) (- end 2))))))
+    version) "." n n
+ "* " (car (magit-staged-files)) " (" (s var) "): Update to " (s version) "."
+ (mapconcat (lambda (file) (concat "* " file)) (cdr (magit-staged-files))) n)
+
+(addcl
+ "gnu: Add cl-"
+ (p (replace-regexp-in-string
+     "^cl-" "" (with-temp-buffer
+                 (magit-git-wash #'magit-diff-wash-diffs
+                   "diff" "--staged")
+                 (beginning-of-buffer)
+                 (when (search-forward "+(define-public " nil 'noerror)
+                   (replace-regexp-in-string
+                    "^sbcl-" ""
+                    (thing-at-point 'sexp 'no-properties)))))
+    var) "." n n
+ "* " (car (magit-staged-files))
+ " (cl-" (s var)  ", ecl-" (s var) ", sbcl-" (s var) "): New variables.")
+
+(https
+ "gnu: "
+ (p (with-temp-buffer
+      (magit-git-wash #'magit-diff-wash-diffs
+        "diff" "--staged")
+      (goto-char (point-min))
+      (when (re-search-forward "^[ ]*(define-public \\(\\S-+\\)" nil 'noerror)
+        (match-string-no-properties 1)))
+    var)
+ ": Use HTTPS home page." n n
+ "* " (car (magit-staged-files)) " (" (s var) ")[home-page]: Use HTTPS." n
+ (mapconcat (lambda (file) (concat "* " file)) (cdr (magit-staged-files))) n)
diff --git a/etc/snippets/scheme-mode/guix-bzr-reference 
b/etc/snippets/yas/scheme-mode/guix-bzr-reference
similarity index 100%
rename from etc/snippets/scheme-mode/guix-bzr-reference
rename to etc/snippets/yas/scheme-mode/guix-bzr-reference
diff --git a/etc/snippets/scheme-mode/guix-cvs-reference 
b/etc/snippets/yas/scheme-mode/guix-cvs-reference
similarity index 100%
rename from etc/snippets/scheme-mode/guix-cvs-reference
rename to etc/snippets/yas/scheme-mode/guix-cvs-reference
diff --git a/etc/snippets/scheme-mode/guix-git-reference 
b/etc/snippets/yas/scheme-mode/guix-git-reference
similarity index 100%
rename from etc/snippets/scheme-mode/guix-git-reference
rename to etc/snippets/yas/scheme-mode/guix-git-reference
diff --git a/etc/snippets/scheme-mode/guix-hg-reference 
b/etc/snippets/yas/scheme-mode/guix-hg-reference
similarity index 100%
rename from etc/snippets/scheme-mode/guix-hg-reference
rename to etc/snippets/yas/scheme-mode/guix-hg-reference
diff --git a/etc/snippets/scheme-mode/guix-origin 
b/etc/snippets/yas/scheme-mode/guix-origin
similarity index 100%
rename from etc/snippets/scheme-mode/guix-origin
rename to etc/snippets/yas/scheme-mode/guix-origin
diff --git a/etc/snippets/scheme-mode/guix-package 
b/etc/snippets/yas/scheme-mode/guix-package
similarity index 100%
rename from etc/snippets/scheme-mode/guix-package
rename to etc/snippets/yas/scheme-mode/guix-package
diff --git a/etc/snippets/scheme-mode/guix-svn-reference 
b/etc/snippets/yas/scheme-mode/guix-svn-reference
similarity index 100%
rename from etc/snippets/scheme-mode/guix-svn-reference
rename to etc/snippets/yas/scheme-mode/guix-svn-reference
diff --git a/etc/snippets/text-mode/guix-commit-message-add-cl-package 
b/etc/snippets/yas/text-mode/guix-commit-message-add-cl-package
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-add-cl-package
rename to etc/snippets/yas/text-mode/guix-commit-message-add-cl-package
diff --git a/etc/snippets/text-mode/guix-commit-message-add-package 
b/etc/snippets/yas/text-mode/guix-commit-message-add-package
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-add-package
rename to etc/snippets/yas/text-mode/guix-commit-message-add-package
diff --git a/etc/snippets/text-mode/guix-commit-message-remove-package 
b/etc/snippets/yas/text-mode/guix-commit-message-remove-package
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-remove-package
rename to etc/snippets/yas/text-mode/guix-commit-message-remove-package
diff --git a/etc/snippets/text-mode/guix-commit-message-rename-package 
b/etc/snippets/yas/text-mode/guix-commit-message-rename-package
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-rename-package
rename to etc/snippets/yas/text-mode/guix-commit-message-rename-package
diff --git a/etc/snippets/text-mode/guix-commit-message-update-package 
b/etc/snippets/yas/text-mode/guix-commit-message-update-package
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-update-package
rename to etc/snippets/yas/text-mode/guix-commit-message-update-package
diff --git a/etc/snippets/text-mode/guix-commit-message-use-https-home-page 
b/etc/snippets/yas/text-mode/guix-commit-message-use-https-home-page
similarity index 100%
rename from etc/snippets/text-mode/guix-commit-message-use-https-home-page
rename to etc/snippets/yas/text-mode/guix-commit-message-use-https-home-page
-- 
2.37.1