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37 linhas
1.0 KiB
37 linhas
1.0 KiB
;;; nix-log.el -- run nix commands in Emacs -*- lexical-binding: t -*-
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;; Author: Matthew Bauer <mjbauer95@gmail.com>
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;; Homepage: https://github.com/NixOS/nix-mode
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;; Keywords: nix
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;; Version: 1.4.0
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;; This file is NOT part of GNU Emacs.
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;;; Commentary:
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;;; Code:
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(require 'nix)
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(require 'nix-search)
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(require 'nix-instantiate)
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(defun nix-log (file attr)
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"Open the nix log.
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FILE nix file to parse.
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ATTR attribute to load the log of."
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(interactive (list (nix-read-file) nil))
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(unless attr (setq attr (nix-read-attr file)))
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(let* ((drv-file (nix-instantiate file attr))
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(drv-name (progn
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(string-match (format "^%s/\\(.*\\)$" nix-store-dir) drv-file)
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(match-string 1 drv-file)))
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(log-file (format "%s/log/nix/drvs/%s/%s.bz2"
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nix-state-dir
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(substring drv-name 0 2) drv-name)))
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(if (file-exists-p log-file)
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(find-file log-file)
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(error "No log is available for derivation"))))
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(provide 'nix-log)
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;;; nix-log.el ends here
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