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  70                   <h2 itemprop="name" class="asset-name entry-title">files4ecr.pl/Building TOT as per instructions</h2>
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  73                       <li class="asset-meta-list-item">Posted on <time datetime="2005-01-03T11:18:25-08:00" itemprop="datePublished">January  3, 2005</time></li>
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  84                   <ul>
  85
  86 <li>Worked on getting files4ecr.pl to work</li>
  87
  88 <li>Attempted to rebuild TOT using the documentation created so far as a guide. Ran out of disk space! :-(</li>
  89
  90 <li>More documentation of build/test/release process</li>
  91
  92 </ul>
  93                   <h3>files4ecr.pl</h3>
  94
  95 <p>The daily CVS Checkin Log works by creating a temporary CVS area based on a tag then doing a cvs update capturing what files have changed. Those files are examined and a report is produced by ECR number.</p>
  96
  97 <p>While this works fairly well and is relatively optimized (only working on the files that changed since the label) it may not be that accurate. It seems to assume that all files for an ECR are checked in together and on the same day. What if, for example, somebody checked in a file for an ECR days ago and it now checking in the rest of the work? The files reported for this ECR may  be incomplete.</p>
  98
  99 <p>Here's an example of where this happened. In today's CVS Checkin Log email the following files are listed as associated with ECR # 20591:<p>
 100
 101 <pre>
 102 ECR Number:  20591
 103         src/lib/libc/strto_int.c              10.2      zhuravle        2004/12/27 16:11:21
 104         src/lib/libc/strto_real.c             10.2      zhuravle        2004/12/27 16:09:47
 105         src/lib/libc/strto_real.h             10.2      zhuravle        2004/12/27 16:09:47
 106         src/lib/libc/strtod.c                 10.4      zhuravle        2004/12/27 16:09:47
 107         src/lib/libc/strtof.c                 10.2      zhuravle        2004/12/27 16:09:47
 108         src/lib/libc/strtoimax.c              10.2      zhuravle        2004/12/27 16:11:58
 109         src/lib/libc/strtol.c                 10.2      zhuravle        2004/12/27 16:11:58
 110         src/lib/libc/strtold.c                10.2      zhuravle        2004/12/27 16:09:48
 111         src/lib/libc/strtoll.c                10.3      zhuravle        2004/12/27 16:11:58
 112         src/lib/libc/strtoul.c                10.2      zhuravle        2004/12/27 16:11:58
 113         src/lib/libc/strtoull.c               10.3      zhuravle        2004/12/27 16:11:58
 114         src/lib/libc/strtoumax.c              10.2      zhuravle        2004/12/27 16:11:58
 115         usr/include/rcsid.h                   10.2      zhuravle        2004/12/27 15:57:50
 116         usr/include/stdlib.h                  10.10     zhuravle        2004/12/27 16:07:26
 117 </pre>
 118
 119 <p>Yet thoroughly scanning the CVS logs we find:</p>
 120
 121 <pre>
 122 ECR Number: 20591 Nbr of files: 25
 123
 124 Nbr Path/File                           Version   Author    Date
 125 --- ----------------------------------- ------- ----------- -------------------
 126   1 strtoull.c                           10.3   zhuravle    2004/12/27 16:11:58
 127   2 strtoull.c                           10.2   zhuravle    2004/10/22 12:04:48
 128   3 Makefile                             10.18  zhuravle    2004/10/22 12:04:47
 129   4 strto_int.c                          10.2   zhuravle    2004/12/27 16:11:21
 130   5 strto_int.c                          10.1   zhuravle    2004/10/22 12:04:48
 131   6 strtold.c                            10.2   zhuravle    2004/12/27 16:09:48
 132   7 strtold.c                            10.1   zhuravle    2004/10/22 12:04:48
 133   8 strtoll.c                            10.3   zhuravle    2004/12/27 16:11:58
 134   9 strtoll.c                            10.2   zhuravle    2004/10/22 12:04:48
 135  10 strtoul.c                            10.2   zhuravle    2004/12/27 16:11:58
 136  11 strtoul.c                            10.1   zhuravle    2004/10/22 12:04:48
 137  12 strtoimax.c                          10.2   zhuravle    2004/12/27 16:11:58
 138  13 strtoimax.c                          10.1   zhuravle    2004/10/22 12:04:48
 139  14 strtoumax.c                          10.2   zhuravle    2004/12/27 16:11:58
 140  15 strtoumax.c                          10.1   zhuravle    2004/10/22 12:04:48
 141  16 strto_real.c                         10.2   zhuravle    2004/12/27 16:09:47
 142  17 strto_real.c                         10.1   zhuravle    2004/10/22 12:04:48
 143  18 strto_real.h                         10.2   zhuravle    2004/12/27 16:09:47
 144  19 strto_real.h                         10.1   zhuravle    2004/10/22 12:04:48
 145  20 strtod.c                             10.4   zhuravle    2004/12/27 16:09:47
 146  21 strtod.c                             10.3   zhuravle    2004/10/22 12:04:48
 147  22 strtof.c                             10.2   zhuravle    2004/12/27 16:09:47
 148  23 strtof.c                             10.1   zhuravle    2004/10/22 12:04:48
 149  24 strtol.c                             10.2   zhuravle    2004/12/27 16:11:58
 150  25 strtol.c                             10.1   zhuravle    2004/10/22 12:04:48
 151
 152 </pre>
 153
 154 <p>Now files4ecr.pl thoroughly checks all CVS logs (based on the paths it is givin that is) but this takes a <b>lot</b> of time.</p>
 155
 156 <p>Note that Makefile is listed by files4ecr.pl but not in the daily CVS Checking Log. That's because Makefile was checked in with that ECR number a while ago. The daily CVS Checkin Log does not reflect this historical fact.</p>
 157
 158 <p>Also note that ECR's unlike tags that can only exist on one revision, ECR numbers are just strings placed in the check in comment. Thus there is the possibility that they will exist on more than one revision (e.g. strtod.c versions 10.4 and 10.3). IOW checking in another version of a file and using the same ECR number will not remove the ECR number in the command of a previous version of the file!</p>
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