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annotate preface.roff @ 36:13bcab8d4b6f
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| author | markus schnalke <meillo@marmaro.de> |
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| date | Tue, 15 May 2012 19:21:27 +0200 |
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1 .H0 "Preface" no |
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| 23 | 3 .P |
| 4 MH is a set of mail handling tools with a common concept, like | |
| 5 the Unix toolchest is a set of file handling tools with a common | |
| 6 concept. nmh is the currently most popular implementation of an | |
| 7 MH-like mail handling system. | |
| 31 | 8 This thesis describes an experimental version of nmh, |
| 9 named \fImmh\fP. | |
| 10 The project goals for mmh are modernizing, stream-lining and exploiting | |
| 11 MH's concepts even more thoroughly. | |
| 23 | 12 |
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13 .U2 "Background to this Thesis |
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14 .P |
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15 I have discovered nmh in September 2009. At that time I used to use the |
| 31 | 16 mail client \fImutt\fP, like many advanced Unix users do. |
| 17 As I read about nmh, its concepts had convinced me at once. | |
| 18 Learning its different model of email handling had been relatively easy, | |
| 19 because my starting situation was being convinced of the concepts. | |
| 20 The transition from mutt to nmh was similar to | |
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21 managing files in the Unix shell when being used to graphical file |
| 31 | 22 managers, or like editing with vi when being used to modeless editors. |
| 23 Such a change is not trivial, but in being convinced by the | |
| 24 concepts and by having done similar transitions for file management | |
| 25 and editing already, it was not too difficult neither. | |
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26 In contrast, setting up nmh to a convenient state became a tendious task |
| 23 | 27 that took several months. |
| 28 .P | |
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29 Once having nmh arranged to a convenient state, I enjoyed using it |
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30 because of its conceptional elegance and its scripting capabilities. |
| 23 | 31 On the other hand, however, it still was |
| 31 | 32 inconvenient for handling attachments, non-ASCII character encodings, |
| 23 | 33 and similar features of modern emailing. |
| 31 | 34 My setup demanded more and more additional configuration and helper scripts |
| 35 to get nmh behave the way I wanted, although my | |
| 36 expectations were rather common for modern emailing. | |
| 37 In being a computer scientist and programmer, | |
| 38 I wanted to improve the situation. | |
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39 .P |
| 31 | 40 In Spring 2010, I asked on the \fInmh-workers\fP mailing list for the |
| 41 possibility to offer a Google Summer of Code project. | |
| 23 | 42 Participating in the development this way appeared attractive to me, |
| 31 | 43 as it would have been possible to have the project |
| 44 accepted at university. Although generally the nmh community | |
| 45 had been positive on the | |
| 46 suggestion, the administrative work had been to much, eventually. | |
| 47 But my proposal had activated the nmh community. | |
| 48 In the following weeks, goals for nmh's future were discussed. | |
| 49 In these discussions, I became involved in the | |
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50 question whether nmh should be an MTA. |
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51 .[ |
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52 nmh-workers thread mta mua |
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53 .] |
| 31 | 54 In this central point, my opinion differed from the opinion of most others. |
| 55 I argued for the MTA facility of nmh to be removed. | |
| 56 Besides the discussions, hardly any real work was done. | |
| 57 Being unable to work on nmh in a way that would be | |
| 58 accepted as part of my official studies, I needed to choose another project. | |
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59 .P |
| 23 | 60 Half a year later, starting in August 2010, |
| 61 I took one semester off to travel through Latin America. | |
| 31 | 62 Within this time, I had to do practical computer work for three months. |
| 23 | 63 This brought me back to nmh. |
| 64 Richard Sandelman, an active nmh user, made it possible for | |
| 65 me to work on nmh. Juan Granda, living in Santiago del | |
| 31 | 66 Estero in Argentina, provided a computer with Internet connection for |
| 67 my work. Thanks to them, I was able to work on nmh during my three-month | |
| 68 stay in Argentina. | |
| 69 Within this time, I became familiar with nmh's code base and | |
| 70 community. I learned how things work. Quickly it became obvious that | |
| 71 I wouldn't succeed with my main goal: improving the character | |
| 72 encoding handling within the project. One of its ramifications is the | |
| 73 missing transfer decoding of quoted text in replies. | |
| 23 | 74 As this is one of the most intricate parts of the system, the goal |
| 31 | 75 was simply set too high. Hence, I dropped the original plan. |
| 76 Instead, I improved the code base as I read through it. I found minor bugs | |
| 77 for which I proposed fixes to the community. In the same go, I | |
| 78 improved the documentation in minor ways. When I started with | |
| 79 larger code changes, I had to discover that the community was reluctant | |
| 80 to change. Its wish for compatibility was much stronger than its | |
| 81 wish for convenient out-of-the-box setups \(en in contrast to my opinion. | |
| 23 | 82 This lead to long discussions, again. |
| 31 | 83 I came to understand their point of view, but it is different to mine. |
| 23 | 84 At the end of my three-month project, I had become familiar with |
| 31 | 85 nmh's code base and community. I had improved the project in minor ways, |
| 86 and I still was convinced that I wanted to go on to do so. | |
| 23 | 87 .P |
| 88 Another half a year later, the end of my studies came within reach. | |
| 89 I needed a topic for my master's thesis. | |
| 90 There was no question: I wanted to work on nmh. | |
| 91 But well, not exactly on nmh, | |
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92 because I had accepted that the nmh community has different goals |
| 31 | 93 than I have. This would result in much discussion and thus little progress. |
| 23 | 94 After careful thought, I decided to start an experimental version of nmh. |
| 31 | 95 I wanted to implement my own ideas of how an MH-like system should look like. |
| 96 I wanted to see where that would lead to. | |
| 97 I wanted to create a usable alternative version to be compared with | |
| 98 the present state of nmh. | |
| 99 My work should be proved successful or failed. | |
| 100 The nmh project would not be hurt by my work, but | |
| 101 it would profit from my experiences. | |
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102 |
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103 .U2 "Focus of this Document |
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104 .P |
| 31 | 105 This document describes my work on the experimental nmh version, named |
| 106 \fImmh\fP. It explains the changes to nmh, with focus on their reasons. | |
| 107 It discusses technical, historical, social and philosophical considerations. | |
| 108 On the technical side, this document | |
| 109 explains how an existing project was stream-lined by removing rough edges | |
| 110 and exploiting the central concepts better. | |
| 111 On the historical | |
| 112 side, changes through time in the use cases and the email features, | |
| 113 as well as the reactions to them, are discussed. | |
| 114 Socially, this document describes the effects | |
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115 and experiences of a newcomer with revolutionary aims entering an old |
| 31 | 116 and matured software projects. |
| 117 Finally, philosophical thoughts on style, mainly based to the Unix philosophy, | |
| 118 are present throughout the discussions. | |
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119 .P |
| 31 | 120 This document is written for the community around MH-like mail systems, |
| 121 including developers and users. | |
| 122 First of all, the document shall explain the design goals and | |
| 123 implementation decisions for mmh. But as well, it shall clarify my | |
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124 personal perception of the |
| 31 | 125 concepts of MH and Unix, and explain my therefrom resulting point of view. |
| 126 Despite the focus on MH-like systems, this document may be worthwhile | |
| 127 to anyone interested in the Unix philosophy and anyone in contact to | |
| 128 old software projects, be it code or community-related. | |
| 23 | 129 .P |
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130 The reader is expected to have good knowledge of Unix, C and emailing. |
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131 Good Unix shell |
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132 knowledge, including shell scripting, is required. MH relies fundamentally |
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133 on the shell. Without the power of the shell, MH becomes a motorbike |
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134 without winding roads: boring. |
| 31 | 135 Introductions to Unix and its shell can be found in ``The UNIX Programming |
| 136 Environment'' by Kernighan and Pike or ``The UNIX System'' by Bourne. | |
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137 The reader is |
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138 expected to be familiar with the C programming language, although the |
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139 document should be understandable without knowledge of C, too. |
| 31 | 140 ``The C Programming Language'' by Kernighan and Ritchie is the |
| 141 definitive guide to C. | |
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142 Some book about system-level C programming is worthwile additional |
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143 literature. Rochkind and Curry have written such books. |
| 31 | 144 As large parts of the code are old, old books are likely more helpful |
| 145 to understanding. | |
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146 The format of email messages as well as the structure of email transfer |
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147 systems should be familiar to the reader, at least on a basic level. |
| 31 | 148 It's advisable to have at least cross-read the RFCs 821 and 822. |
| 149 Further more, basic understanding of MIME is good to have. | |
| 150 The Wikipedia provides good introduction-level information to email. | |
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151 Frequent references to the Unix philosophy will be made. |
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152 Gancarz had tried to sum the philosophy up in his book |
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153 ``The UNIX Philosophy''. |
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154 .[ |
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155 gancarz unix phil |
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156 .] |
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157 Even better but less concrete are ``The UNIX Programming Environment'' |
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158 .[ |
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159 kernighan pike unix prog env |
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160 .] |
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161 and ``The Practice of Programming'' |
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162 .[ |
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163 kernighan pike practice of prog |
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164 .] |
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165 by Kernighan and Pike. |
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166 The term paper ``Why the Unix Philosophy still matters'' |
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167 .[ |
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168 why unix phil still matters schnalke |
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169 .] |
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170 by myself |
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171 provides an overview on the topic, including a case study of MH. |
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172 Although a brief introduction to MH is provided in Chapter 1, the reader |
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173 is encouraged to have a look at the \fIMH Book\fP by Jerry Peek. |
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174 .[ |
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175 peek mh |
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176 .] |
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177 It is the definitive guide to MH and nmh. |
| 31 | 178 The current version is available freely on the Internet. |
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179 .P |
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180 This document is neither a user's tutorial to mmh nor an introduction |
| 31 | 181 to any of the topics covered. It discusses Unix, email |
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182 and system design on an advanced level. |
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183 However, as knowledge of the fundamental concepts is the most valuable |
| 31 | 184 information a user can aquire about some program or software system, |
| 185 this document might be worth a read for non-developers as well. | |
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186 |
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187 |
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188 .U2 "Organization |
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189 .P |
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190 Which font for what use. |
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191 Meaning of `foo(1)'. |
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192 RFCs. |
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193 MH vs. nmh vs. mmh. |
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194 .P |
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195 This thesis is devided into XXX chapters, ... |
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196 .P |
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197 .I Chapter 1 |
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198 introduces ... |
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199 .P |
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200 .I Chapter 2 |
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201 describes ... |
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202 .P |
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203 .I Chapter 3 |
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204 covers ... |
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205 |
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207 .U2 "Acknowledgments |
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209 To be written at the very end. |
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210 |
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211 |
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212 .\" End or Preface. Start of the normal text. |
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213 .\" Switch to arabic page numbers and start on a right page. |
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214 . |
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215 .if e \{ |
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216 . pn 1 |
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217 . af PN 1 |
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218 .\} |
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219 .if o \{ |
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220 . pn 0 |
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221 . af PN 0 |
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222 . bp |
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223 .\} |