Mercurial > hg > autobot
annotate README.txt @ 263:a13749f19067
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| author | Jeff Hammel <jhammel@mozilla.com> |
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| date | Wed, 28 Dec 2011 21:06:58 -0800 |
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1 autobot |
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2 ======= |
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3 |
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4 buildbot for the A*Team |
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5 |
| 184 | 6 |
| 7 What is autobot? | |
| 8 ---------------- | |
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9 |
| 184 | 10 autobot is a continuous integration solution for the Automation and |
| 11 Tools Team. We have a lot of software. We're really talented, so | |
| 12 usually it doesn't break. But we're not infalliable. Our robot ally, | |
| 206 | 13 autobot, is there to test things for us. Let's meet autobot! |
| 184 | 14 |
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15 |
| 184 | 16 Installing autobot |
| 17 ------------------ | |
| 18 | |
| 206 | 19 autobot may be installed using the install script:: |
| 184 | 20 |
| 21 curl http://k0s.org/mozilla/hg/autobot/raw-file/tip/INSTALL.sh | bash | |
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22 |
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23 This will create a virtualenv and install autobot for development |
| 206 | 24 ($VIRTUAL_ENV/src/autobot). You can also use the script as |
| 25 instructions and install it in the same manner as any other python package. | |
| 184 | 26 |
| 27 | |
| 28 Setting up a buildmaster and slave | |
| 29 ---------------------------------- | |
| 30 | |
| 31 Once you have autobot installed and the virtualenv activated, you'll | |
| 32 want to create a buildmaster and a buildslave. | |
| 33 | |
| 34 You can create a master-slave pair by running ``create-autobot`` after | |
| 35 activating the virtualenv. This is mostly useful for autobot | |
| 36 development. The scripts ``create-autobot-master`` and | |
| 206 | 37 ``create-autobot-slave`` are also available and are more useful for |
| 38 production, as normally you will not want to keep the master and the | |
| 39 slave on the same machine except for development and testing. The | |
| 40 scripts will prompt you for a factory or you can specify one or more | |
| 41 from the commandline using ``--factory`` or ``-f``. The factories are | |
| 42 from ``autobot.projects`` and its subdirectories. You can list the | |
| 43 available factories with ``create-autobot --list-factories`` (or | |
| 44 ``create-autobot-master --list-factories``). | |
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45 |
| 186 | 46 Running ``create-autobot --help`` will give the variables you can set |
| 47 when it makes a new bot for you (``create-autobot-master`` and | |
| 48 ``create-autobot-slave`` also have a ``--help``, the variables in | |
| 49 ``create-autobot`` being a superset of these). | |
| 184 | 50 |
| 186 | 51 If you don't specify a variable, the default will be used to create |
| 206 | 52 your particular bot. You can change these in the resultant |
| 53 configuration later. | |
| 186 | 54 |
| 55 | |
| 184 | 56 Using autobot |
| 57 ------------- | |
| 58 | |
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59 The buildmaster and buildslave are started with |
| 206 | 60 ``buildbot start master`` and ``buildslave stop slave`` from the bot's |
| 61 directories. Respective ``stop`` commands also exist. If you used the | |
| 62 ``create-autobot`` command the generated bot will have a | |
| 63 ``restart_buildbot.py`` script that will stop and start both the | |
| 64 master and slave and (if debug is set) remove the log as well. | |
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65 |
| 206 | 66 The generated ``master.cfg`` file reads values from a ``master.ini`` |
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67 file in the same directory. The master.ini contains a number of |
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68 different sections: |
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69 |
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70 * ``[:master:]`` contains the top level configuration for the master |
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71 as well as default settings for slaves |
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72 * sections like ``[slave:slavename]`` indicate a slave of name |
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73 ``slavename`` |
| 206 | 74 * all other sections are construction parameters for factories |
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75 |
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76 The format of the ``.ini`` file is detailed in the subsequent |
| 206 | 77 section. You may change which .ini file is used by editing the |
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78 ``master.cfg`` file, or, if for whatever reason you don't want to use |
| 206 | 79 an .ini file as a driver you can construct the appropriate |
| 80 configuration therein yourself. | |
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81 |
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82 An overview of the build status is detailed at the waterfall display, |
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83 by default at http://localhost:8010/waterfall . To force a build, |
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84 click on the desired builder and there will be a force build button |
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85 towards the bottom. |
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86 |
| 184 | 87 It is important to remember that continuous integration is a safety |
| 206 | 88 net, not a first line of defense. In other words, continue to check |
| 89 your code *before* sending it to autobot. | |
| 90 | |
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91 |
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92 .ini file format |
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93 ---------------- |
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94 |
| 206 | 95 As stated above, a ``master.ini`` file contains three different types |
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96 of sections: |
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97 |
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98 * ``[:master:]`` contains the top level configuration for the master |
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99 as well as default settings for slaves |
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100 * sections like ``[slave:slavename]`` indicate a slave of name |
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101 ``slavename`` |
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102 * other sections are construction parameters for factories |
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103 |
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104 What goes in each of these? |
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105 |
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106 ``:master:`` The master section contains parameters appropriate to the |
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107 buildmaster: |
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108 |
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109 * slaveport: which port to listen for the slaves on |
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110 * htmlport: which port to serve the waterfall display on |
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111 * pollInterval: how often to poll the repositories, in seconds [DEFAULT: 60] |
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112 * treeStable: how long to wait before the tree settles down before |
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113 building [DEFAULT: 60] |
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114 |
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115 The other defaults may be seen by running ``create-autobot-master --help``. |
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116 |
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117 Other parameters given in the ``[:master:]`` section are used as the |
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118 baseline defaults for each slave. They may be overridden in each |
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119 ``slave:`` section |
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120 |
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121 ---- |
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122 |
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123 ``slave:`` parameters for each slave: |
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124 |
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125 * password: each slave *must* have a password. Unless there's a |
| 206 | 126 reason to have a different password per slave, its probably better |
| 127 to put this in the ``:master:`` section | |
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128 |
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129 * factories: space-separated list of factories to run on that slave. |
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130 If the special value ``*`` is used, all factories will be run. You |
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131 can view the factories available with |
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132 ``create-autobot --list-factories``. The factory name corresponds to |
| 206 | 133 the directory (or module) name in ``autobot.projects``. If |
| 134 every slave is meant to run the same factories, you can put this in | |
| 135 the ``:master:`` section | |
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136 |
| 206 | 137 * os: the operating system of the slave. Should be one of ``linux``, |
| 138 ``win``, or ``mac`` (though see TODO about future use of MozInfo | |
| 139 making this obselescent). You probably *shouldn't* have a default | |
| 140 key for this in the ``:master:`` section (though autobot won't try | |
| 141 to stop you!). | |
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142 |
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143 ---- |
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144 |
| 206 | 145 factory sections: All other sections are used to build the factories. |
| 146 Each parameter in a factory section is used as a constructor | |
| 147 (``__init__``) keyword argument when they are created in the | |
| 148 ``master.cfg``. So a factory section like:: | |
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149 |
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150 [foo] |
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151 bar = fleem |
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152 baz = another parameter |
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153 |
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154 will invoke the foo factory (lets say it maps to ``MyFooFactory``) on |
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155 each slave like:: |
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156 |
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157 MyFooFactory(**dict(bar='fleem', baz='another parameter')) |
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158 |
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159 In addition, if a factory has a special key, ``platform``, the slave |
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160 will pass its platform information when instantiating a factory. |
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161 Currently, this is a dict with a single key, ``os``, but more may be |
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162 added as needed. As noted in the TODO below, ideally this would be |
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163 deprecated entirely by MozInfo but such is the interim solution. |
| 184 | 164 |
| 165 | |
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166 Projects |
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167 -------- |
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168 |
| 184 | 169 What does autobot test? |
| 170 | |
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171 * logparser [WORKING] |
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172 * profilemanager [IN FLIGHT] |
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173 * mozmill [IN FLIGHT] |
| 70 | 174 * devicemanager [IN FLIGHT] |
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175 * firebug [TODO] |
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176 * jetpack [TODO] |
| 70 | 177 |
| 186 | 178 The projects are obtained from any factories in subdirectories of |
| 179 ``autobot.projects`` (use | |
| 180 ``python -c 'from autobot import projects; print projects.__file__'`` | |
| 181 to see this location). | |
| 182 | |
| 184 | 183 |
| 208 | 184 Sources |
| 185 ------- | |
| 186 | |
| 187 ``autobot.process.factory:SourceFactory`` is an abstract base class | |
| 188 for specifying sources. Sources live as a member on the instance, named | |
| 189 (oddly) ``sources``. This is a dict with the key being the source | |
| 190 type and the value being the source to use. Source types are | |
| 191 currently "git" and "hg", though this is easily extensible. | |
| 192 | |
| 193 Internally, an individual source is stored as a 2-tuple with the first | |
| 194 item being the URL of the source and the second item being the | |
| 195 branch. If the branch is ``None`` or not specified, this is assumed | |
| 196 to equate to ``master`` for git or ``default`` for hg. However, you | |
| 197 may also use a string in the form of ``URL#branch``. In addition, you | |
| 198 may specify a whitespace separated source, which ``SourceFactory`` | |
| 199 will split into a list of sources. So all of these translate into the | |
| 200 same source:: | |
| 201 | |
| 202 sources = {'hg': 'http://hg.mozilla.org/automation/logparser'} | |
| 203 | |
| 204 sources = {'hg': ['http://hg.mozilla.org/automation/logparser#default']} | |
| 205 | |
| 206 sources = {'hg': [('http://hg.mozilla.org/automation/logparser', None)] | |
| 207 | |
| 208 The generated ``master.cfg`` polls for changes on the given source, | |
| 209 then uses ``buildbot.schedulers.filter:Changefilter`` in conjunction | |
| 209 | 210 with a ``Scheduler`` to trigger the appropriate builds. This is done |
| 211 by ``GitPoller`` and ``HgPoller`` in | |
| 212 ``autobot.changes.poller``. Again, more pollers can be added as | |
| 213 needed or the provided buildbot change sources may be utilized. | |
| 208 | 214 |
| 215 While, in general, the canonical sources should be specified at the | |
| 216 class level, if an appropriate argument (e.g. *hg* or *git*) is passed | |
| 217 in to the ``SourceFactory`` constructor, this will override that | |
| 218 source type. This is useful for testing changes on non-canonical URLs | |
| 219 and/or branches. | |
| 220 | |
| 206 | 221 |
| 184 | 222 Adding a New Project |
| 223 -------------------- | |
| 224 | |
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225 Occassionally, you'll need to add a new project to test. You can add |
| 206 | 226 a ``__init__.py`` file to a directory under ``autobot.projects`` and, |
| 227 if you have a factory therein, autobot will find it and add it to the | |
| 228 list of factories it knows about. | |
| 229 | |
| 230 There is also a script, ``create-autobot-project``, that can create | |
| 231 this stub for you:: | |
| 232 | |
| 233 Usage: create-autobot-project [options] project <output> | |
| 234 | |
| 235 ``project`` is the name of the project and ``output``, if specified, | |
| 236 is the path of the file to create. If output is not specified, it | |
| 237 will find its way to a directory named for the project under | |
| 238 ``autobot.projects``. | |
| 186 | 239 |
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240 Several factories (``BuildFactory`` descendents) are in |
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241 ``autobot.process`` to make building a new project easier: |
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242 |
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243 * ``SourceFactory``: as described above, this processes the sources |
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244 and gives a method (``checkout()``) for downloading them. |
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245 ``master.cfg`` looks in each factory and gleems its needed |
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246 repository from its ``sources`` attribute (if any) in the internal |
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247 storage mechanism of ``SourceFactory`` and sets up schedulers |
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248 accordingly. |
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249 |
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250 * ``VirtualenvFactory``: inherits from ``SourceFactory``. creates a |
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251 python virtualenv and provides build properties ``%(virtualenv)s``, |
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252 ``%(python)s``, and ``%(scripts)s`` (location of ``bin`` on unix or |
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253 ``Scripts`` on windows with respect to the virtualenv. It also has |
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254 a ``findScript()`` method which accepts the unix-style script name |
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255 (no extension) and returns the path to the script on the platform. |
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256 |
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257 * ``PythonSourceFactory``: inherits from ``VirtualenvFactory``. It |
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258 treats *all* (for now, can be changed) sources as sources of python |
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259 packages. In addition to checking them out in |
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260 ``%(virtualenv)s/src``, it will also install them (using |
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261 ``%(python)s setup.py install``) |
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262 |
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263 * ``FirefoxDownloaderFactory``: downloads and unpacks a Firefox |
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264 bundle, using |
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265 `GetLatestTinderbox <http://hg.mozilla.org/automation/getlatest-tinderbox>`_ . |
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266 It also provides three properties: ``%(firefox_url)s``, |
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267 ``%(firefox_bundle)s``, and ``%(firefox)s`` -- the last, and most |
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268 interesting, being the absolute path to the Firefox executable. You |
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269 (currently) *must* pass a ``platform`` argument with |
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270 ``platform['os']`` set to "linux", "win", or "mac" in order for |
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271 ``FirefoxDownloaderFactory`` to figure out what to do with the thing |
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272 that it downloads (though see TODO, in the future it should/could |
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273 use MozInfo or guess the OS from the bundle extension...maybe). |
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274 Currently, mac is *NOT* supported, though its on my list of things |
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275 to do (I'd love advice/help!). |
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276 |
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277 See the ``autobot.process.factory`` file for more details. These |
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278 classes are intended as mix-ins (not my favorite pattern, but it seems |
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279 to basically be what buildbot wants you to do). More work needs to be |
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280 done to provide for the breadth of use-cases, but what exists now is |
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281 considered a "good start" versus a "final form". More factories may |
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282 be added per necessity. |
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283 |
| 186 | 284 |
| 285 Is your autobot being feisty? | |
| 286 ----------------------------- | |
| 287 | |
| 288 Let me know! I'd like to make autobot a solution that works for all | |
| 289 stake-holders, and if you're reading this, that means you! | |
| 290 | |
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291 jhammel@mozilla.com |
| 186 | 292 |
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293 |
| 186 | 294 TODO |
| 295 ---- | |
| 296 | |
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297 No software of any size is ever finished. Here are a few things I |
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298 would like to add: |
| 186 | 299 |
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300 * get FirefoxDownloaderFactory working on Mac with .dmg files! |
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301 |
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302 * singular checkout of repos on slaves: the slaves should have a |
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303 singular master repo that is checked out once for each repo URL, |
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304 branch pair. It is then updated as the slaves need and (e.g.) |
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305 cloned from there. This should effectively minimize fetch time. |
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306 |
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307 * use (as yet non-existent) MozInfo package on the slave: instead of |
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308 specifying the operating system, etc on the master, MozInfo should |
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309 determine the applicable information from introspection |