*: init

Signed-off-by: Maciej Barć <xgqt@gentoo.org>

7 files changed, 582 insertions, 0 deletions

diff --git a/.dir-locals.el b/.dir-locals.el
new file mode 100644
index 0000000..4a6b820
--- /dev/null
+++ b/.dir-locals.el
@@ -0,0 +1,12 @@
+;; -*- no-byte-compile: t -*-
+
+;; Directory Local Variables
+;; For more information see (info "(emacs) Directory Variables")
+
+
+((nil . ((projectile-project-type . make)))
+ (find-file . ((indent-tabs-mode . nil)
+               (require-final-newline . t)
+               (show-trailing-whitespace . t)
+               (tab-width . 4)))
+ (makefile-mode . ((indent-tabs-mode . t))))
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..baa071b
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+insert_final_newline = true
+tab_width = 4
+trim_trailing_whitespace = true
+
+[.gitmodules]
+indent_style = tab
+
+[Makefile]
+indent_style = tab
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7944263
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+*.elc
+*.~undo-tree
+*~
+flycheck_*
+
+.cask/
+.eldev/
+dist/
diff --git a/Cask b/Cask
new file mode 100644
index 0000000..c963f65
--- /dev/null
+++ b/Cask
@@ -0,0 +1,3 @@
+(source melpa)
+
+(package-file "elogt.el")
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+  The licenses for most software are designed to take away your
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+Foundation's software and to any other program whose authors commit to
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+You may charge a fee for the physical act of transferring a copy, and
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+  2. You may modify your copy or copies of the Program or any portion
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+    <one line to give the program's name and a brief idea of what it does.>
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+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
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+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
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+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
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+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
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+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3356f2e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,30 @@
+PWD         ?= $(shell pwd)
+
+ELS          = $(wildcard $(PWD)/*.el)
+ELCS         = $(ELS:.el=.elc)
+
+EMACS       := emacs
+RM          := rm -f
+
+EMACFLAGS   := --batch -q --no-site-file -L $(PWD)
+EMACSCMD     = $(EMACS) $(EMACFLAGS)
+
+
+.PHONY: all
+all: clean compile
+
+.PHONY: clean
+clean:
+	$(RM) $(ELCS)
+
+%.elc:
+	$(EMACSCMD) --eval "(byte-compile-file \"$(*).el\" 0)"
+
+.PHONY: compile
+compile: $(ELCS)
+
+.PHONY: install
+install: compile
+	$(EMACSCMD)                                     \
+		--eval "(require 'package)"                 \
+		--eval "(package-install-file \"$(PWD)\")"
diff --git a/elogt.el b/elogt.el
new file mode 100644
index 0000000..88a01e4
--- /dev/null
+++ b/elogt.el
@@ -0,0 +1,175 @@
+;;; elogt.el --- Portage Emerge log browser -*- lexical-binding: t -*-
+
+
+
+;; Copyright 2023 Gentoo Authors
+
+
+;; This file is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 2 of the License, or
+;; (at your option) any later version.
+
+;; This file is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+
+;; Authors: Maciej Barć <xgqt@gentoo.org>
+;; Maintainer: Gentoo Emacs project <emacs@gentoo.org>
+;; Created: 03 Feb 2023
+;; Version: 0.0.0
+;; Keywords: convenience
+;; Homepage: https://gitweb.gentoo.org/proj/emacs-elogt.git
+;; Package-Requires: ((emacs "25"))
+;; SPDX-License-Identifier: GPL-2.0-or-later
+
+
+
+;;; Commentary:
+
+;; Portage Emerge log browser for GNU Emacs.
+
+;; ElogT displays the Portage logs in a convenient table and allows log file
+;; browsing and deletion.
+
+
+
+;;; Code:
+
+
+(defvar elogt-portage-log-dir "/var/log/portage"
+  "Portage log directory location.")
+
+(defvar elogt-check-priority t
+  "Check priority of each logfile.
+
+If set to nil entries will have a phony Info level.")
+
+(defconst elogt--portage-log-stars
+  '((" \e[31;01m*\e[0m" . error)
+    (" \e[32m*\e[0m"    . info)
+    (" \e[33;01m*\e[0m" . warn)))
+
+
+;; Log file processing
+
+(defun elogt--gather-portage-logs ()
+  "Gather logs from ‘elogt-log-dir’."
+  (directory-files elogt-portage-log-dir t "\\.log"))
+
+(defun elogt--logfile-find-stars (file-name)
+  "Find special info indicators in FILE-NAME."
+  (let ((buffer (find-file-noselect file-name 'nowarn 'rawfile))
+        (found-stars nil))
+    (with-current-buffer buffer
+      (dolist (star elogt--portage-log-stars)
+        (save-excursion
+          (goto-char (point-min))
+          (let ((found (search-forward (car star) nil 'noerror)))
+            (when found
+              (push (cdr star) found-stars))))))
+    (kill-buffer buffer)
+    found-stars))
+
+(defun elogt--logfile-priority-level (file-name)
+  "Return a FILE-NAME priority level.
+
+A logfile priority level is one of: None, Info, Warn, Error."
+  (let ((found-stars (elogt--logfile-find-stars file-name)))
+    (cond
+     ((not elogt-check-priority)  "Info")
+     ((null          found-stars) "None")
+     ((member 'error found-stars) "Error")
+     ((member 'warn  found-stars) "Warn")
+     (t                           "Info"))))
+
+(defun elogt--logfile-properties (file-name)
+  "Extract the properties form given FILE-NAME."
+  (apply #'vector (cons (elogt--logfile-priority-level file-name)
+                        (split-string (file-name-base file-name) ":"))))
+
+(defun elogt--make-log-table-contents ()
+  "Make ElogT table contents."
+  (let ((index 0))
+    (mapcar (lambda (log-file-path)
+              (let ((entry (list index
+                                 (elogt--logfile-properties log-file-path))))
+                (setq index (+ index 1))
+                entry))
+            (elogt--gather-portage-logs))))
+
+
+;; Table interaction
+
+(defun elogt-open-entry ()
+  "Open specified ElogT table entry."
+  (interactive)
+
+  ;; TODO: Implement.
+  nil)
+
+(defun elogt-delete-entry ()
+  "Delete specified ElogT table entry."
+  (interactive)
+
+  ;; TODO: Implement.
+  nil)
+
+(defun elogt-refresh-table ()
+  "Refresh the ElogT table."
+  (interactive)
+  (setq tabulated-list-entries (elogt--make-log-table-contents))
+  (tabulated-list-init-header)
+  (tabulated-list-print t))
+
+
+;; Major mode
+
+(defvar elogt-mode-hook nil
+  "Hook for `elogt' major mode.")
+
+(defvar elogt-mode-map
+  (let ((elogt-mode-map (make-keymap)))
+    (define-key elogt-mode-map (kbd "/") #'isearch-forward)
+    (define-key elogt-mode-map (kbd "o") #'elogt-open-entry)
+    (define-key elogt-mode-map (kbd "d") #'elogt-delete-entry)
+    (define-key elogt-mode-map (kbd "g") #'elogt-refresh-table)
+    elogt-mode-map)
+  "Key map for `elogt' major mode.")
+
+(define-derived-mode elogt-mode tabulated-list-mode
+  "ElogT"
+  "Major mode for browsing Portage log files."
+  (setq tabulated-list-format
+        [("Priority"  10 t)
+         ("Category"  20 t)
+         ("Package"   30 t)
+         ("Time"      20 t)])
+  (setq tabulated-list-sort-key (cons "Date-Time" t))
+  (run-hooks 'elogt-mode-hook)
+  (use-local-map elogt-mode-map))
+
+
+;; Main provided features
+
+;;;###autoload
+(defun elogt ()
+  "Browse Portage log files."
+  (interactive)
+  (let ((buffer (get-buffer-create "*ElogT*")))
+    (with-current-buffer buffer
+      (elogt-mode)
+      (elogt-refresh-table))
+    (display-buffer buffer)))
+
+
+(provide 'elogt)
+
+
+
+;;; elogt.el ends here