diff options
Diffstat (limited to 'tools/emacs-pkgs')
| -rw-r--r-- | tools/emacs-pkgs/defzone/defzone.el | 60 | ||||
| -rw-r--r-- | tools/emacs-pkgs/defzone/example.el | 45 | ||||
| -rw-r--r-- | tools/emacs-pkgs/dottime/default.nix | 7 | ||||
| -rw-r--r-- | tools/emacs-pkgs/dottime/dottime.el | 81 | ||||
| -rw-r--r-- | tools/emacs-pkgs/nix-util/default.nix | 7 | ||||
| -rw-r--r-- | tools/emacs-pkgs/nix-util/nix-util.el | 103 | ||||
| -rw-r--r-- | tools/emacs-pkgs/term-switcher/default.nix | 14 | ||||
| -rw-r--r-- | tools/emacs-pkgs/term-switcher/term-switcher.el | 56 |
8 files changed, 373 insertions, 0 deletions
diff --git a/tools/emacs-pkgs/defzone/defzone.el b/tools/emacs-pkgs/defzone/defzone.el new file mode 100644 index 0000000000..ffd359e5ff --- /dev/null +++ b/tools/emacs-pkgs/defzone/defzone.el @@ -0,0 +1,60 @@ +;;; defzone.el --- Generate zone files from Elisp -*- lexical-binding: t; -*- + +(require 'dash) +(require 'dash-functional) +(require 's) + +(defun record-to-record (zone record &optional subdomain) + "Evaluate a record definition and turn it into a zone file + record in ZONE, optionally prefixed with SUBDOMAIN." + + (cl-labels ((plist->alist (plist) + (when plist + (cons + (cons (car plist) (cadr plist)) + (plist->alist (cddr plist)))))) + (let ((name (if subdomain (s-join "." (list subdomain zone)) zone))) + (pcase record + ;; SOA RDATA (RFC 1035; 3.3.13) + ((and `(SOA . (,ttl . ,keys)) + (let (map (:mname mname) (:rname rname) (:serial serial) + (:refresh refresh) (:retry retry) (:expire expire) + (:minimum min)) + (plist->alist keys))) + (if-let ((missing (-filter #'null (not (list mname rname serial + refresh retry expire min))))) + (error "Missing fields in SOA record: %s" missing) + (format "%s %s IN SOA %s %s %s %s %s %s %s" + name ttl mname rname serial refresh retry expire min))) + + (`(NS . (,ttl . ,targets)) + (->> targets + (-map (lambda (target) (format "%s %s IN NS %s" name ttl target))) + (s-join "\n"))) + + (`(MX . (,ttl . ,pairs)) + (->> pairs + (-map (-lambda ((preference . exchange)) + (format "%s %s IN MX %s %s" name ttl preference exchange))) + (s-join "\n"))) + + (`(TXT ,ttl ,text) (format "%s %s IN TXT %s" name ttl (prin1-to-string text))) + + (`(A . (,ttl . ,ips)) + (->> ips + (-map (lambda (ip) (format "%s %s IN A %s" name ttl ip))) + (s-join "\n"))) + + (`(CNAME ,ttl ,target) (format "%s %s IN CNAME %s" name ttl target)) + + ((and `(,sub . ,records) + (guard (stringp sub))) + (s-join "\n" (-map (lambda (r) (record-to-record zone r sub)) records))) + + (_ (error "Invalid record definition: %s" record)))))) + +(defmacro defzone (fqdn &rest records) + "Generate zone file for the zone at FQDN from a simple DSL." + (declare (indent defun)) + + `(s-join "\n" (-map (lambda (r) (record-to-record ,fqdn r)) (quote ,records)))) diff --git a/tools/emacs-pkgs/defzone/example.el b/tools/emacs-pkgs/defzone/example.el new file mode 100644 index 0000000000..e9c86d25ee --- /dev/null +++ b/tools/emacs-pkgs/defzone/example.el @@ -0,0 +1,45 @@ +;;; example.el - usage example for defzone macro + +(defzone "tazj.in." + (SOA 21600 + :mname "ns-cloud-a1.googledomains.com." + :rname "cloud-dns-hostmaster.google.com." + :serial 123 + :refresh 21600 + :retry 3600 + :expire 1209600 + :minimum 300) + + (NS 21600 + "ns-cloud-a1.googledomains.com." + "ns-cloud-a2.googledomains.com." + "ns-cloud-a3.googledomains.com." + "ns-cloud-a4.googledomains.com.") + + (MX 300 + (1 . "aspmx.l.google.com.") + (5 . "alt1.aspmx.l.google.com.") + (5 . "alt2.aspmx.l.google.com.") + (10 . "alt3.aspmx.l.google.com.") + (10 . "alt4.aspmx.l.google.com.")) + + (TXT 3600 "google-site-verification=d3_MI1OwD6q2OT42Vvh0I9w2u3Q5KFBu-PieNUE1Fig") + + (A 300 "34.98.120.189") + + ;; Nested record sets are indicated by a list that starts with a + ;; string (this is just joined, so you can nest multiple levels at + ;; once) + ("blog" + ;; Blog "storage engine" is in a separate DNS zone + (NS 21600 + "ns-cloud-c1.googledomains.com." + "ns-cloud-c2.googledomains.com." + "ns-cloud-c3.googledomains.com." + "ns-cloud-c4.googledomains.com.")) + + ("git" + (A 300 "34.98.120.189") + (TXT 300 "<3 edef")) + + ("files" (CNAME 300 "c.storage.googleapis.com."))) diff --git a/tools/emacs-pkgs/dottime/default.nix b/tools/emacs-pkgs/dottime/default.nix new file mode 100644 index 0000000000..633aad187e --- /dev/null +++ b/tools/emacs-pkgs/dottime/default.nix @@ -0,0 +1,7 @@ +{ pkgs, ... }: + +pkgs.emacsPackages.trivialBuild rec { + pname = "dottime"; + version = "1.0"; + src = ./dottime.el; +} diff --git a/tools/emacs-pkgs/dottime/dottime.el b/tools/emacs-pkgs/dottime/dottime.el new file mode 100644 index 0000000000..2446f6488f --- /dev/null +++ b/tools/emacs-pkgs/dottime/dottime.el @@ -0,0 +1,81 @@ +;;; dottime.el --- use dottime in the modeline +;; +;; Copyright (C) 2019 Google Inc. +;; +;; Author: Vincent Ambo <tazjin@google.com> +;; Version: 1.0 +;; Package-Requires: (cl-lib) +;; +;;; Commentary: +;; +;; This package changes the display of time in the modeline to use +;; dottime (see https://dotti.me/) instead of the standard time +;; display. +;; +;; Modeline dottime display is enabled by calling +;; `dottime-display-mode' and dottime can be used in Lisp code via +;; `dottime-format'. + +(require 'cl-lib) +(require 'time) + +(defun dottime--format-string (&optional offset prefix) + "Creates the dottime format string for `format-time-string' + based on the local timezone." + + (let* ((offset-sec (or offset (car (current-time-zone)))) + (offset-hours (/ offset-sec 60 60)) + (base (concat prefix "%m-%dT%H·%M"))) + (if (/= offset-hours 0) + (concat base (format "%0+3d" offset-hours)) + base))) + +(defun dottime--display-time-update-advice (orig) + "Function used as advice to `display-time-update' with a + rebound definition of `format-time-string' that renders all + timestamps as dottime." + + (cl-letf* ((format-orig (symbol-function 'format-time-string)) + ((symbol-function 'format-time-string) + (lambda (&rest _) + (funcall format-orig (dottime--format-string) nil t)))) + (funcall orig))) + +(defun dottime-format (&optional time offset prefix) + "Format the given TIME in dottime at OFFSET. If TIME is nil, + the current time will be used. PREFIX is prefixed to the format + string verbatim. + + OFFSET can be an integer representing an offset in seconds, or + the argument can be elided in which case the system time zone + is used." + + (format-time-string (dottime--format-string offset prefix) time t)) + +(defun dottime-display-mode (arg) + "Enable time display as dottime. Disables dottime if called + with prefix 0 or nil." + + (interactive "p") + (if (or (eq arg 0) (eq arg nil)) + (advice-remove 'display-time-update #'dottime--display-time-update-advice) + (advice-add 'display-time-update :around #'dottime--display-time-update-advice)) + (display-time-update) + + ;; Amend the time display in telega.el to use dottime. + ;; + ;; This will never display offsets in the chat window, as those are + ;; always visible in the modeline anyways. + (when (featurep 'telega) + (defun telega-ins--dottime-advice (orig timestamp) + (let* ((dtime (decode-time timestamp t)) + (current-ts (time-to-seconds (current-time))) + (ctime (decode-time current-ts)) + (today00 (telega--time-at00 current-ts ctime))) + (if (> timestamp today00) + (telega-ins (format "%02d·%02d" (nth 2 dtime) (nth 1 dtime))) + (funcall orig timestamp)))) + + (advice-add 'telega-ins--date :around #'telega-ins--dottime-advice))) + +(provide 'dottime) diff --git a/tools/emacs-pkgs/nix-util/default.nix b/tools/emacs-pkgs/nix-util/default.nix new file mode 100644 index 0000000000..2356ad75f2 --- /dev/null +++ b/tools/emacs-pkgs/nix-util/default.nix @@ -0,0 +1,7 @@ +{ pkgs, ... }: + +pkgs.emacsPackages.trivialBuild rec { + pname = "nix-util"; + version = "1.0"; + src = ./nix-util.el; +} diff --git a/tools/emacs-pkgs/nix-util/nix-util.el b/tools/emacs-pkgs/nix-util/nix-util.el new file mode 100644 index 0000000000..4b9dd31a02 --- /dev/null +++ b/tools/emacs-pkgs/nix-util/nix-util.el @@ -0,0 +1,103 @@ +;;; nix-util.el --- Utilities for dealing with Nix code. -*- lexical-binding: t; -*- +;; +;; Copyright (C) 2019 Google Inc. +;; +;; Author: Vincent Ambo <tazjin@google.com> +;; Version: 1.0 +;; Package-Requires: (json map) +;; +;;; Commentary: +;; +;; This package adds some functionality that I find useful when +;; working in Nix buffers or programs installed from Nix. + +(require 'json) +(require 'map) + +(defvar nix-depot-path "/home/tazjin/depot") + +(defun nix/prefetch-github (owner repo) ; TODO(tazjin): support different branches + "Fetch the master branch of a GitHub repository and insert the + call to `fetchFromGitHub' at point." + + (interactive "sOwner: \nsRepository: ") + + (let* (;; Keep these vars around for output insertion + (point (point)) + (buffer (current-buffer)) + (name (concat "github-fetcher/" owner "/" repo)) + (outbuf (format "*%s*" name)) + (errbuf (get-buffer-create "*github-fetcher/errors*")) + (cleanup (lambda () + (kill-buffer outbuf) + (kill-buffer errbuf) + (with-current-buffer buffer + (read-only-mode -1)))) + (prefetch-handler + (lambda (_process event) + (unwind-protect + (pcase event + ("finished\n" + (let* ((json-string (with-current-buffer outbuf + (buffer-string))) + (result (json-read-from-string json-string))) + (with-current-buffer buffer + (goto-char point) + (map-let (("rev" rev) ("sha256" sha256)) result + (read-only-mode -1) + (insert (format "fetchFromGitHub { + owner = \"%s\"; + repo = \"%s\"; + rev = \"%s\"; + sha256 = \"%s\"; +};" owner repo rev sha256)) + (indent-region point (point)))))) + (_ (with-current-buffer errbuf + (error "Failed to prefetch %s/%s: %s" + owner repo (buffer-string))))) + (funcall cleanup))))) + + ;; Fetching happens asynchronously, but we'd like to make sure the + ;; point stays in place while that happens. + (read-only-mode) + (make-process :name name + :buffer outbuf + :command `("nix-prefetch-github" ,owner ,repo) + :stderr errbuf + :sentinel prefetch-handler))) + +(defun nix/sly-from-depot (attribute) + "Start a Sly REPL configured with a Lisp matching a derivation + from my depot. + + The derivation invokes nix.buildLisp.sbclWith and is built + asynchronously. The build output is included in the error + thrown on build failures." + + (interactive "sAttribute: ") + (lexical-let* ((outbuf (get-buffer-create (format "*depot-out/%s*" attribute))) + (errbuf (get-buffer-create (format "*depot-errors/%s*" attribute))) + (expression (format "let depot = import <depot> {}; in depot.nix.buildLisp.sbclWith [ depot.%s ]" attribute)) + ;; TODO(tazjin): use <depot> + (command (list "nix-build" "--no-out-link" "-I" (format "depot=%s" nix-depot-path) "-E" expression))) + + (message "Acquiring Lisp for <depot>.%s" attribute) + (make-process :name (format "depot-nix-build/%s" attribute) + :buffer outbuf + :stderr errbuf + :command command + :sentinel + (lambda (process event) + (unwind-protect + (pcase event + ("finished\n" + (let* ((outpath (s-trim (with-current-buffer outbuf (buffer-string)))) + (lisp-path (s-concat outpath "/bin/sbcl"))) + (message "Acquired Lisp for <depot>.%s at %s" attribute lisp-path) + (sly lisp-path))) + (_ (with-current-buffer errbuf + (error "Failed to build '%s':\n%s" attribute (buffer-string))))) + (kill-buffer outbuf) + (kill-buffer errbuf)))))) + +(provide 'nix-util) diff --git a/tools/emacs-pkgs/term-switcher/default.nix b/tools/emacs-pkgs/term-switcher/default.nix new file mode 100644 index 0000000000..0c5e4c17cd --- /dev/null +++ b/tools/emacs-pkgs/term-switcher/default.nix @@ -0,0 +1,14 @@ +{ pkgs, ... }: + +with pkgs.emacsPackages; + +melpaBuild rec { + pname = "term-switcher"; + version = "1.0"; + src = ./term-switcher.el; + packageRequires = [ dash ivy s vterm ]; + + recipe = builtins.toFile "recipe" '' + (term-switcher :fetcher github :repo "tazjin/depot") + ''; +} diff --git a/tools/emacs-pkgs/term-switcher/term-switcher.el b/tools/emacs-pkgs/term-switcher/term-switcher.el new file mode 100644 index 0000000000..67595474fa --- /dev/null +++ b/tools/emacs-pkgs/term-switcher/term-switcher.el @@ -0,0 +1,56 @@ +;;; term-switcher.el --- Easily switch between open vterms +;; +;; Copyright (C) 2019 Google Inc. +;; +;; Author: Vincent Ambo <tazjin@google.com> +;; Version: 1.1 +;; Package-Requires: (dash ivy s vterm) +;; +;;; Commentary: +;; +;; This package adds a function that lets users quickly switch between +;; different open vterms via ivy. + +(require 'dash) +(require 'ivy) +(require 's) +(require 'vterm) + +(defgroup term-switcher nil + "Customization options `term-switcher'.") + +(defcustom term-switcher-buffer-prefix "vterm<" + "String prefix for vterm terminal buffers. For example, if you + set your titles to match `vterm<...>' a useful prefix might be + `vterm<'." + :type '(string) + :group 'term-switcher) + +(defun ts/open-or-create-vterm (buffer-name) + "Switch to the buffer with BUFFER-NAME or create a new vterm + buffer." + (let ((buffer (get-buffer buffer-name))) + (if (not buffer) + (vterm) + (switch-to-buffer buffer)))) + +(defun ts/is-vterm-buffer (buffer) + "Determine whether BUFFER runs a vterm." + (equal 'vterm-mode (buffer-local-value 'major-mode buffer))) + +(defun ts/switch-to-terminal () + "Switch to an existing vterm buffer or create a new one." + + (interactive) + (let ((terms (-map #'buffer-name + (-filter #'ts/is-vterm-buffer (buffer-list))))) + (if terms + (ivy-read "Switch to vterm: " + (cons "New vterm" terms) + :caller 'ts/switch-to-terminal + :preselect (s-concat "^" term-switcher-buffer-prefix) + :require-match t + :action #'ts/open-or-create-vterm) + (vterm)))) + +(provide 'term-switcher) |