[tor-bugs] #13015 [Tor bundles/installation]: Update gitian signing+sig check+upload scripts to use tag/branch

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#13015: Update gitian signing+sig check+upload scripts to use tag/branch
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     Reporter:  mikeperry                 |      Owner:  erinn
         Type:  defect                    |     Status:  new
     Priority:  normal                    |  Milestone:
    Component:  Tor bundles/installation  |    Version:
   Resolution:                            |   Keywords:
Actual Points:                            |  TorBrowserTeam201410
       Points:                            |  Parent ID:
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Comment (by boklm):

 I attached a patch to do this. However, I did not run a build with those
 changes yet to check that everything is working. I will update this ticket
 when I've done it.

 Here is a copy past from the commit message:

 {{{

 This commit adds a get-tb-version script which uses the git tags to
 output the Tor Browser version and its build directory. The output
 should be used with 'eval' in shell scripts to define the variables.
 It takes as argument the type of version (release, alpha or beta).

 If the current commit is tagged with tag tbb-4.2-build15, get-tb-version
 will output this:

     TORBROWSER_VERSION=4.2
     TORBROWSER_BUILDDIR=4.2-build15
     TORBROWSER_SYMLINK_VERSION=1

 If the current commit is not tagged, get-tb-version will use the version
 from the last tagged commit in history. The build directory will include
 the commit hash rather than a build number. The output will be something
 like this:

     TORBROWSER_VERSION=4.0
     TORBROWSER_BUILDDIR=4.0-1a98e3efb368
     TORBROWSER_SYMLINK_VERSION=0

 The TORBROWSER_BUILDDIR variable is used as the build directory.

 The TORBROWSER_SYMLINK_VERSION variable indicate whether we should
 create a symlink TORBROWSER_VERSION -> TORBROWSER_BUILDDIR.

 The various files which source the versions files and use
 TORBROWSER_VERSION have been updated to eval the output of
 get-tb-version too, and use TORBROWSER_BUILDDIR as build directory.
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13015#comment:2>
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