1 | ;;; Copyright (C) 2006, 2008 Magnus Henoch |
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2 | ;;; |
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3 | ;;; This program is free software; you can redistribute it and/or |
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4 | ;;; modify it under the terms of the GNU General Public License as |
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5 | ;;; published by the Free Software Foundation; either version 2 of the |
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6 | ;;; License, or (at your option) any later version. |
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7 | ;;; |
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8 | ;;; This program is distributed in the hope that it will be useful, |
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9 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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11 | ;;; General Public License for more details. |
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12 | ;;; |
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13 | ;;; You should have received a copy of the GNU General Public License |
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14 | ;;; along with this program; if not, write to the Free Software |
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15 | ;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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16 | |
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17 | (in-package :darcs) |
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18 | |
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19 | (defun write-patch-to-repo (patch repo) |
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20 | "Write the named patch PATCH to REPO, compressed, under correct filename." |
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21 | (let ((filename |
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22 | (upath-subdir repo '("_darcs" "patches") |
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23 | (patchinfo-make-filename |
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24 | (named-patch-patchinfo patch))))) |
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25 | (with-temp-file-name tmp-file |
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26 | (with-open-file (out tmp-file :direction :output :element-type '(unsigned-byte 8) |
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27 | :if-exists :error) |
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28 | (write-patch patch out)) |
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29 | (compress-file tmp-file filename)))) |
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30 | |
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31 | (defgeneric write-patch (patch stream) |
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32 | (:documentation "Write PATCH to STREAM, in darcs patch format. |
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33 | STREAM is assumed to have element type (unsigned-byte 8). |
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34 | The patch is terminated by a newline character.")) |
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35 | |
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36 | (defun write-as-byte (char stream) |
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37 | "Convert CHAR to a byte, and write it to STREAM." |
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38 | (write-byte (char-code char) stream)) |
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39 | |
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40 | (defun write-as-bytes (string stream) |
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41 | "Convert STRING to bytes, and write it to STREAM." |
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42 | (write-sequence (string-to-bytes string) stream)) |
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43 | |
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44 | (defmethod write-patch ((patch composite-patch) stream) |
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45 | (write-as-byte #\{ stream) |
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46 | (write-byte 10 stream) |
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47 | (dolist (part (patches patch)) |
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48 | (write-patch part stream)) |
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49 | (write-as-byte #\} stream) |
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50 | (write-byte 10 stream)) |
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51 | |
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52 | (defmethod write-patch ((patch hunk-patch) stream) |
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53 | (write-as-bytes (concatenate |
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54 | 'string |
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55 | "hunk " |
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56 | (pathname-to-string (patch-filename patch)) |
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57 | (format nil " ~A" (hunk-line-number patch))) |
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58 | stream) |
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59 | (write-byte 10 stream) |
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60 | (dolist (line (hunk-old-lines patch)) |
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61 | (write-as-byte #\- stream) |
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62 | (write-sequence line stream) |
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63 | (write-byte 10 stream)) |
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64 | (dolist (line (hunk-new-lines patch)) |
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65 | (write-byte (char-code #\+) stream) |
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66 | (write-sequence line stream) |
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67 | (write-byte 10 stream))) |
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68 | |
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69 | (defun write-token-and-filename (token filename stream) |
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70 | (write-as-bytes token stream) |
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71 | (write-byte 32 stream) |
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72 | ;; Both files and directories are specified in file format, |
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73 | ;; i.e. without a trailing slash. |
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74 | (write-as-bytes (pathname-to-string (fad:pathname-as-file filename)) stream) |
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75 | (write-byte 10 stream)) |
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76 | |
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77 | (defmethod write-patch ((patch add-file-patch) stream) |
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78 | (write-token-and-filename "addfile" (patch-filename patch) stream)) |
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79 | |
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80 | (defmethod write-patch ((patch rm-file-patch) stream) |
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81 | (write-token-and-filename "rmfile" (patch-filename patch) stream)) |
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82 | |
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83 | (defmethod write-patch ((patch add-dir-patch) stream) |
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84 | (write-token-and-filename "adddir" (patch-directory patch) stream)) |
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85 | |
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86 | (defmethod write-patch ((patch rm-dir-patch) stream) |
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87 | (write-token-and-filename "rmdir" (patch-directory patch) stream)) |
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88 | |
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89 | (defmethod write-patch ((patch binary-patch) stream) |
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90 | (write-token-and-filename "binary" (patch-filename patch) stream) |
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91 | (flet ((write-binary-data (bin) |
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92 | ;; Print binary data in hex format, with 78 characters per |
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93 | ;; line. Each lines starts with *. A newline is printed |
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94 | ;; at the start, but not at the end. |
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95 | (loop for i from 0 upto (length bin) |
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96 | do (when (zerop (mod i 49)) |
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97 | (write-byte 10 stream) |
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98 | (write-as-byte #\* stream)) |
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99 | (write-as-bytes (string-downcase |
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100 | (format nil "~X" (aref bin i))) |
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101 | stream)))) |
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102 | (write-as-bytes "oldhex" stream) |
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103 | (write-binary-data (binary-oldhex patch)) |
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104 | (write-as-bytes "newhex" stream) |
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105 | (write-binary-data (binary-newhex patch)) |
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106 | (write-byte 10 stream))) |
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107 | |
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108 | (defmethod write-patch ((patch token-replace-patch) stream) |
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109 | (write-as-bytes (format nil "replace ~A [~A] ~A ~A" |
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110 | (pathname-to-string (patch-filename patch)) |
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111 | (token-regexp patch) |
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112 | (old-token patch) |
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113 | (new-token patch)) |
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114 | stream) |
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115 | (write-byte 10 stream)) |
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116 | |
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117 | (defmethod write-patch ((patch named-patch) stream) |
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118 | (write-as-bytes |
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119 | (with-output-to-string (strout) |
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120 | (write-patchinfo (named-patch-patchinfo patch) strout)) |
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121 | stream) |
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122 | (when (named-patch-dependencies patch) |
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123 | (write-as-byte #\< stream) |
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124 | (write-byte 10 stream) |
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125 | (dolist (d (named-patch-dependencies patch)) |
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126 | (write-as-bytes |
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127 | (with-output-to-string (strout) |
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128 | (write-patchinfo d strout)) |
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129 | stream) |
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130 | (write-byte 10 stream)) |
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131 | (write-as-byte #\> stream) |
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132 | (write-byte 32 stream)) |
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133 | (write-patch (named-patch-patch patch) stream)) |
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134 | |
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135 | (defmethod write-patch ((patch change-pref-patch) stream) |
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136 | (write-as-bytes "changepref " stream) |
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137 | (write-as-bytes (change-pref-which patch) stream) |
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138 | (write-byte 10 stream) |
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139 | (write-as-bytes (change-pref-from patch) stream) |
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140 | (write-byte 10 stream) |
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141 | (write-as-bytes (change-pref-to patch) stream) |
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142 | (write-byte 10 stream)) |
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143 | |
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144 | (defmethod write-patch ((patch move-patch) stream) |
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145 | (write-sequence (string-to-bytes "move ") stream) |
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146 | (write-sequence (string-to-bytes |
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147 | (pathname-to-string (patch-move-from patch))) |
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148 | stream) |
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149 | (write-byte 32 stream) |
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150 | (write-sequence (string-to-bytes |
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151 | (pathname-to-string |
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152 | (patch-move-to patch))) stream) |
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153 | (write-byte 10 stream)) |
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154 | |
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155 | (defmethod write-patch ((patch merger-patch) stream) |
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156 | (write-as-bytes "merger " stream) |
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157 | (write-as-bytes (merger-version patch) stream) |
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158 | (write-as-bytes " (" stream) |
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159 | (write-byte 10 stream) |
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160 | (write-patch (merger-first patch) stream) |
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161 | (write-patch (merger-second patch) stream) |
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162 | (write-as-byte #\) stream) |
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163 | (write-byte 10 stream)) |
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