Mercurial > p > roundup > code
annotate doc/developers.txt @ 5973:fe334430ca07
issue2550919 - Anti-bot signup using 4 second delay
Took the code by erik forsberg and massaged it into the core.
So this is no longer needed in the tracker.
Updated devel and responsive trackers to remove timestamp.py and
update input field name.
Docs, changes and tests complete. Hopefully these tracker changes
won't cause an issue for other tests.
| author | John Rouillard <rouilj@ieee.org> |
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| date | Sat, 09 Nov 2019 00:30:37 -0500 |
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1 ================== |
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2 Developing Roundup |
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3 ================== |
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4 |
| 2409 | 5 .. note:: |
| 6 The intended audience of this document is the developers of the core | |
| 7 Roundup code. If you just wish to alter some behaviour of your Roundup | |
| 8 installation, see `customising roundup`_. | |
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9 |
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10 Contents |
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11 |
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12 .. contents:: |
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13 :local: |
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14 |
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15 Getting Started |
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16 --------------- |
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17 |
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18 Anyone wishing to help in the development of Roundup must read `Roundup's |
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19 Design Document`_ and the `implementation notes`_. |
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20 |
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21 All development is coordinated through two resources: |
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22 |
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23 - roundup-devel mailing list at |
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24 https://sourceforge.net/projects/roundup/lists/roundup-devel |
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25 - The issue tracker running at |
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26 https://issues.roundup-tracker.org/ |
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27 |
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28 Website, wiki |
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29 ------------- |
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30 |
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31 The website is in our repository, so is the configuration of the wiki. |
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32 Please check the README.txt in the "website" subdirectory |
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33 of a current checkout. |
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34 |
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35 Issue Tracker |
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36 ------------- |
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37 |
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38 The tracker resides on bugs.ams1.psf.io (188.166.48.69). You can also |
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39 ssh to issues.roundup-tracker.org. They have the same fingerprint: |
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40 |
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41 ED25519 key fingerprint is f1:f7:3d:bf:3b:01:8d:e1:4e:30:b3:0f:6e:98:b8:9b. |
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42 |
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43 The roundup installation belongs to the user roundup. |
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44 The setup uses virtualenv. Use the python version: |
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45 |
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46 /srv/roundup/env/bin/python2.7 |
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47 |
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48 to get a python with roundup on the PYTHONPATH. |
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49 |
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50 The Roundup tracker https://issues.roundup-tracker.org/ is in |
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51 /srv/roundup/trackers/roundup/ with the database set to |
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52 /srv/roundup/data/roundup/. Note that postgres is used for the |
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53 backend, so the database directory above is used for msgs and files. |
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54 |
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55 Source is in: /srv/roundup/src/ |
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56 |
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57 Roundup is run using gunicorn and wsgi. |
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58 |
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59 You have 'sudo -u roundup' access if you need to run things as the |
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60 roundup user. |
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61 |
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62 The configuration is in the "website/issues" section of Roundup's |
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63 Mercurical SCM repository and copied manually to the live tracker. |
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64 |
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65 * get a working copy of roundup/website/issues from the SCM, either via |
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66 hg clone https://hg.code.sf.net/p/roundup/code |
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67 or download a snapshot: |
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68 https://sourceforge.net/p/roundup/code/ci/default/tarball |
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69 |
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70 * check the differences |
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71 diff -ur /srv/roundup/trackers/roundup/ roundup/website/issues/ |
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72 |
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73 Copy differences using 'sudo -u roundup ...'. |
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74 |
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75 Getting a user account |
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76 ~~~~~~~~~~~~~~~~~~~~~~ |
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77 |
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78 To get access to the host, submit a pull request for: |
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79 |
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80 https://github.com/python/psf-salt |
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81 |
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82 by forking the repo, make a change similar to: |
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83 |
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84 https://github.com/rouilj/psf-salt/commit/2aa55d0fc5a343f45f5507437d3fba077cbaf852 |
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85 |
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86 and submit it as a pull request. Contact ewdurbin via #roundup IRC or by |
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87 adding an issue to the master psf-salt repo. |
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88 |
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89 |
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90 Small Changes |
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91 ------------- |
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92 |
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93 Most small changes can be submitted as patches through the |
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94 `issue tracker`_ or sent to `roundup-devel mailing list`_. |
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95 |
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96 |
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97 Source Repository Access |
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98 ------------------------ |
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99 |
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100 See http://www.roundup-tracker.org/code.html. |
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101 For all other questions ask on the development mailinglist. |
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102 |
| 935 | 103 |
| 104 Project Rules | |
| 105 ------------- | |
| 106 | |
| 107 Mostly the project follows Guido's Style (though naming tends to be a little | |
| 108 relaxed sometimes). In short: | |
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109 |
| 935 | 110 - 80 column width code |
| 111 - 4-space indentations | |
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112 - All modules must have an Id line near the top |
| 935 | 113 |
| 114 Other project rules: | |
| 115 | |
| 116 - New functionality must be documented, even briefly (so at least we know | |
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117 where there's missing documentation) and changes to tracker configuration |
| 935 | 118 must be logged in the upgrading document. |
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119 - subscribe to roundup-checkins to receive checkin notifications from the |
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120 other developers with write access to the source-code repository. |
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121 - discuss any changes with the other developers on roundup-dev. If nothing |
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122 else, this makes sure there's no rude shocks |
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123 - write unit tests for changes you make (where possible), and ensure that |
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124 all unit tests run before committing changes |
| 935 | 125 - run pychecker over changed code |
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126 |
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127 The administrators of the project reserve the right to boot developers who |
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128 consistently check in code which is either broken or takes the codebase in |
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129 directions that have not been agreed to. |
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130 |
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131 |
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132 Debugging Aids |
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133 -------------- |
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134 |
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135 See :doc:`debugging <debugging>`. |
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136 |
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137 Internationalization Notes |
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138 -------------------------- |
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139 |
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140 How stuff works: |
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141 |
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142 1. Strings that may require translation (messages in human language) |
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143 are marked in the source code. This step is discussed in |
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144 `Marking Strings for Translation`_ section. |
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145 |
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146 2. These strings are all extracted into Message Template File |
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147 ``locale/roundup.pot`` (_`POT` file). See `Extracting Translatable |
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148 Messages`_ below. |
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149 |
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150 3. Language teams use POT file to make Message Files for national |
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151 languages (_`PO` files). All PO files for Roundup are kept in |
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152 the ``locale`` directory. Names of these files are target |
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153 locale names, usually just 2-letter language codes. `Translating |
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154 Messages`_ section of this chapter gives useful hints for |
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155 message translators. |
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156 |
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157 4. Translated Message Files are compiled into binary form (_`MO` files) |
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158 and stored in ``locale`` directory (but not kept in the source code |
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159 repository, as they may be easily made from PO files). |
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160 See `Compiling Message Catalogs`_ section. |
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161 |
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162 5. Roundup installer creates runtime locale structure on the file |
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163 system, putting MO files in their appropriate places. |
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164 |
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165 6. Runtime internationalization (_`I18N`) services use these MO files |
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166 to translate program messages into language selected by current |
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167 Roundup user. Roundup command line interface uses locale name |
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168 set in OS environment variable ``LANGUAGE``, ``LC_ALL``, |
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169 ``LC_MESSAGES``, or ``LANG`` (in that order). Roundup Web User |
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170 Interface uses language selected by currently authenticated user. |
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171 |
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172 Additional details may be found in `GNU gettext`_ and Python `gettext |
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173 module`_ documentation. |
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174 |
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175 `Roundup source distribution`_ includes POT and PO files for message |
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176 translators, and also pre-built MO files to facilitate installations |
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177 from source. Roundup binary distribution includes MO files only. |
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178 |
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179 .. _GNU gettext: |
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180 |
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181 GNU gettext package |
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182 ~~~~~~~~~~~~~~~~~~~ |
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183 |
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184 This chapter is full of references to GNU `gettext package`_. |
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185 GNU gettext is a "must have" for nearly all steps of internationalizing |
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186 any program, and it's manual is definetely a recommended reading |
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187 for people involved in `I18N`_. |
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188 |
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189 There are GNU gettext ports to all major OS platforms. |
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190 Windows binaries are available from `GNU mirror sites`_. |
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191 |
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192 Roundup does not use GNU gettext at runtime, but it's tools |
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193 are used for `extracting translatable messages`_, `compiling |
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194 message catalogs`_ and, optionally, for `translating messages`_. |
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195 |
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196 Note that ``gettext`` package in some OS distributions means just |
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197 runtime tools and libraries. In such cases gettext development tools |
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198 are usually distributed in separate package named ``gettext-devel``. |
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199 |
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200 Marking Strings for Translation |
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201 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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202 |
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203 Strings that need translation must be marked in the source code. |
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204 Following subsections explain how this is done in different cases. |
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205 |
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206 If translatable string is used as a format string, it is recommended |
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207 to always use *named* format specifiers:: |
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208 |
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209 _('Index of %(classname)s') % locals() |
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210 |
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211 This helps translators to better understand the context of the |
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212 message and, with Python formatting, remove format specifier altogether |
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213 (which is sometimes useful, especially in singular cases of `Plural Forms`_). |
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214 |
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215 When there is more than one format specifier in the translatable |
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216 format string, named format specifiers **must** be used almost always, |
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217 because translation may require different order of items. |
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218 |
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219 It is better to *not* mark for translation strings that are not |
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220 locale-dependent, as this makes it more difficult to keep track |
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221 of translation completeness. For example, string ``</ol></body></html>`` |
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222 (in ``index()`` method of the request handler in ``roundup_server`` |
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223 script) has no human readable parts at all, and needs no translations. |
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224 Such strings are left untranslated in PO files, and are reported |
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225 as such by PO status checkers (e.g. ``msgfmt --statistics``). |
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226 |
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227 Command Line Interfaces |
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228 ~~~~~~~~~~~~~~~~~~~~~~~ |
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229 |
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230 Scripts and routines run from the command line use "static" language |
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231 defined by environment variables recognized by ``gettext`` module |
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232 from Python library (``LANGUAGE``, ``LC_ALL``, ``LC_MESSAGES``, and |
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233 ``LANG``). Primarilly, these are ``roundup-admin`` script and |
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234 ``admin.py`` module, but also help texts and startup error messages |
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235 in other scripts and their supporting modules. |
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236 |
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237 For these interfaces, Python ``gettext`` engine must be initialized |
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238 to use Roundup message catalogs. This is normally done by including |
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239 the following line in the module imports:: |
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240 |
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241 from i18n import _, ngettext |
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242 |
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243 Simple translations are automatically marked by calls to builtin |
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244 message translation function ``_()``:: |
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245 |
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246 print(_("This message is translated")) |
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247 |
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248 Translations for messages whose grammatical depends on a number |
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249 must be done by ``ngettext()`` function:: |
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250 |
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251 print(ngettext("Nuked %i file", "Nuked %i files", number_of_files_nuked)) |
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252 |
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253 Deferred Translations |
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254 ~~~~~~~~~~~~~~~~~~~~~ |
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255 |
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256 Sometimes translatable strings appear in the source code in untranslated |
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257 form [#note_admin.py]_ and must be translated elsewhere. |
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258 Example:: |
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259 |
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260 for meal in ("spam", "egg", "beacon"): |
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261 print(_(meal)) |
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262 |
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263 In such cases, strings must be marked for translation without actual |
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264 call to the translating function. To mark these strings, we use Python |
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265 feature of automatic concatenation of adjacent strings and different |
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266 types of string quotes:: |
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267 |
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268 strings_to_translate = ( |
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269 ''"This string will be translated", |
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270 ""'me too', |
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271 ''r"\raw string", |
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272 ''""" |
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273 multiline string""" |
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274 ) |
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275 |
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276 .. [#note_admin.py] In current Roundup sources, this feature is |
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277 extensively used in the ``admin`` module using method docstrings |
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278 as help messages. |
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279 |
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280 Web User Interface |
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281 ~~~~~~~~~~~~~~~~~~ |
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282 |
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283 For Web User Interface, translation services are provided by Client |
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284 object. Action classes have methods ``_()`` and ``gettext()``, |
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285 delegating translation to the Client instance. In HTML templates, |
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286 translator object is available as context variable ``i18n``. |
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287 |
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288 HTML templates have special markup for translatable strings. |
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289 The syntax for this markup is defined on `ZPTInternationalizationSupport`_ |
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290 page. Roundup translation service currently ignores values for |
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291 ``i18n:domain``, ``i18n:source`` and ``i18n:target``. |
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292 |
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293 Template markup examples: |
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294 |
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295 * simplest case:: |
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296 |
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297 <div i18n:translate=""> |
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298 Say |
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299 no |
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300 more! |
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301 </div> |
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302 |
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303 this will result in msgid ``"Say no more!"``, with all leading and |
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304 trailing whitespace stripped, and inner blanks replaced with single |
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305 space character. |
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306 |
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307 * using variable slots:: |
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308 |
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309 <div i18n:translate=""> |
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310 And now...<br/> |
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311 No.<span tal:replace="number" i18n:name="slideNo" /><br/> |
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312 THE LARCH |
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313 </div> |
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314 |
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315 Msgid will be: ``"And now...<br /> No.${slideNo}<br /> THE LARCH"``. |
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316 Template rendering will use context variable ``number`` (you may use |
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317 any expression) to put instead of ``${slideNo}`` in translation. |
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318 |
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319 * attribute translation:: |
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320 |
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321 <button name="btn_wink" value=" Wink " i18n:attributes="value" /> |
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322 |
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323 will translate the caption (and return value) for the "wink" button. |
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324 |
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325 * explicit msgids. Sometimes it may be useful to specify msgid |
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326 for the element translation explicitely, like this:: |
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327 |
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328 <span i18n:translate="know what i mean?">this text is ignored</span> |
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329 |
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330 When rendered, element contents will be replaced by translation |
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331 of the string specified in ``i18n:translate`` attribute. |
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332 |
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333 * ``i18n`` in `TALES`_. You may translate strings in `TALES`_ python |
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334 expressions:: |
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335 |
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336 <span tal:replace="python: i18n.gettext('Oh, wicked.')" /> |
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337 |
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338 * plural forms. There is no markup for plural forms in `TAL`_ i18n. |
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339 You must use python expression for that:: |
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340 |
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341 <span tal:replace="python: i18n.ngettext( |
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342 'Oh but it\'s only %i shilling.', |
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343 'Oh but it\'s only %i shillings.', |
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344 fine) % fine" |
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345 /> |
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346 |
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347 Extracting Translatable Messages |
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348 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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349 |
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350 The most common tool for message extraction is ``xgettext`` utility |
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351 from `GNU gettext package`_. Unfortunately, this utility has no means |
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352 of `Deferred Translations`_ in Python sources. There is ``xpot`` tool |
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353 from Francois Pinard free `PO utilities`_ that allows to mark strings |
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354 for deferred translations, but it does not handle `plural forms`_. |
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355 |
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356 Roundup overcomes these limitations by using both of these utilities. |
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357 This means that you need both `GNU gettext`_ tools and `PO utilities`_ |
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358 to build the Message Template File yourself. |
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359 |
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360 Latest Message Template File is kept in the source code repository |
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361 and distributed with `Roundup Source`_. |
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362 If you wish to rebuild the template yourself, |
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363 make sure that you have both ``xpot`` and ``xgettext`` installed and |
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364 just run ``gmake`` (or ``make``, if you are on a `GNU`_ system like |
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365 `linux`_ or `cygwin`_) in the ``locale`` directory. |
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366 |
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367 For on-site i18n, Roundup provides command-line utility:: |
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368 |
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369 roundup-gettext <tracker_home> |
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370 |
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371 extracting translatable messages from tracker's html templates. |
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372 This utility creates message template file ``messages.pot`` in |
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373 ``locale`` subdirectory of the tracker home directory. Translated |
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374 messages may be put in *locale*.po files (where *locale* is selected |
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375 locale name) in the same directory, e.g.: ``locale/ru.po``. |
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376 These message catalogs are searched prior to system-wide translations |
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377 kept in the ``share`` directory. |
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378 |
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379 Translating Messages |
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380 ^^^^^^^^^^^^^^^^^^^^ |
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381 |
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382 Gettext Message File (`PO`_ file) is a plain text file, that can be created |
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383 by simple copying ``roundup.pot`` to new .po file, like this:: |
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384 |
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385 $ cp roundup.pot ru.po |
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386 |
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387 The name of PO file is target locale name, usually just 2-letter language |
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388 code (``ru`` for Russian in the above example). Alternatively, PO file |
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389 may be initialized by ``msginit`` utility from `GNU gettext`_ tools:: |
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390 |
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391 $ msginit -i roundup.pot |
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392 |
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393 ``msginit`` will check your current locale, and initialize the header |
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394 entry, setting language name, rules for `plural forms`_ and, if available, |
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395 translator's name and email address. The name for PO file is also chosen |
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396 based on current locale. |
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397 |
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398 Next, you will need to edit this file, filling all ``msgstr`` lines with |
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399 translations of the above ``msgid`` entries. PO file is a plain text |
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400 file that can be edited with any text editor. However, there are several |
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401 tools that may help you with this process: |
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402 |
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403 - `poEdit`_ by Vaclav Slavik. Very nice cross-platform GUI editor. |
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404 |
| 5367 | 405 - `Lokalize`_. A replacement for KBabel. Being part of `KDE`_, it |
| 406 works in X windows only. Haven't had much experience with it, though. | |
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407 |
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408 - ``po-mode`` for `emacs`_. One of `GNU gettext`_ tools. Very handy, |
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409 definitely recommended if you are comfortable with emacs. Cannot |
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410 handle `plural forms`_ per se, but allows to edit them in simple |
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411 text mode. |
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412 |
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413 - `po filetype plugin`_ for `vim`_. Does not do as much as ``po-mode``, |
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414 but helps in finding untranslated and fuzzy strings, and checking |
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415 code references. Please contact `alexander smishlajev`_ if you |
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416 prefer this, as i have patched this plugin a bit. I have also |
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417 informed the original plugin author about these changes, but got |
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418 no reply so far. |
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419 |
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420 Compiling Message Catalogs |
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421 ^^^^^^^^^^^^^^^^^^^^^^^^^^ |
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422 |
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423 Message catalogs (`PO`_ files) must be compiled into binary form |
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424 (`MO`_ files) before they can be used in the application. This |
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425 compilation is handled by ``msgfmt`` utility from `GNU gettext`_ |
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426 tools. ``GNUmakefile`` in the ``locale`` directory automatically |
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427 compiles all existing message catalogs after updating them from |
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428 Roundup source files. If you wish to rebuild an individual `MO`_ |
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429 file without making everything else, you may, for example:: |
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430 |
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431 $ msgfmt --statistics -o ru.mo ru.po |
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432 |
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433 This way, message translators can check their `PO`_ files without |
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434 extracting strings from source. (Note: String extraction requires |
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435 additional utility that is not part of `GNU gettext`_. See `Extracting |
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436 Translatable Messages`_.) |
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437 |
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438 At run time, Roundup automatically compiles message catalogs whenever |
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439 `PO`_ file is changed. |
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440 |
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441 .. _`Customising Roundup`: customizing.html |
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442 .. _`Roundup's Design Document`: spec.html |
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443 .. _`implementation notes`: implementation.html |
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444 |
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445 |
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446 .. _External hyperlink targets: |
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447 |
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448 .. _alexander smishlajev: |
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449 .. _als: https://sourceforge.net/u/a1s/profile/ |
| 5367 | 450 .. _cygwin: https://www.cygwin.com/ |
| 451 .. _emacs: https://www.gnu.org/software/emacs/ | |
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452 .. _gettext package: http://www.gnu.org/savannah-checkouts/gnu/gettext/manual/gettext.html |
| 5367 | 453 .. _gettext module: https://docs.python.org/2/library/gettext.html |
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454 .. _GNU: http://www.gnu.org/ |
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455 .. _GNU mirror sites: http://www.gnu.org/prep/ftp.html |
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456 .. _issue tracker: https://issues.roundup-tracker.org/ |
| 5367 | 457 .. _Lokalize: Lokalize |
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458 .. _KDE: https://kde.org/ |
| 5367 | 459 .. _linux: https://www.linux.org/ |
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460 .. _Plural Forms: |
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461 http://www.gnu.org/savannah-checkouts/gnu/gettext/manual/gettext.html |
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462 .. _po filetype plugin: |
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463 https://vim.sourceforge.io/scripts/script.php?script_id=695 |
| 5367 | 464 .. _PO utilities: https://github.com/pinard/po-utils |
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465 .. _poEdit: https://poedit.net/ |
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466 .. _Roundup Source: |
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467 .. _Roundup source distribution: |
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468 .. _Roundup binary distribution: |
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469 https://sourceforge.net/projects/roundup/files/ |
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470 .. _roundup-devel mailing list: |
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471 https://sourceforge.net/projects/roundup/lists/roundup-devel |
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472 .. _TAL: |
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473 .. _Template Attribute Language: |
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474 https://pagetemplates.readthedocs.io/en/latest/history/TALSpecification14.html |
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475 .. _TALES: |
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476 .. _Template Attribute Language Expression Syntax: |
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477 https://pagetemplates.readthedocs.io/en/latest/history/TALESSpecification13.html |
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478 .. _vim: https://www.vim.org/ |
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479 .. _ZPTInternationalizationSupport: http://dev.zope.org/Wikis/DevSite/Projects/ComponentArchitecture/ZPTInternationalizationSupport |
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