git: /usr/Makefile: Support dports and add error checking

[John Marino]

commit 4060abb317175b40853c1022ad81b1f2f3e24d34
Author: John Marino <draco at marino.st>
Date:   Wed Dec 26 16:05:35 2012 +0100

    /usr/Makefile: Support dports and add error checking
    
    * Check for git before issuing git command
    * Check if directories existing when expected for a target
    * Check if directories do not exist when they shouldn't for a target
    * Issue error messages when above criteria are not met
    * Convert to prinf to make spacing changes easier in future
    * Remove options from help screen that are currently invalid
      ("make" by itself now reflects only options that are valid at the time)
    * Remove reference to cvs repositories, that's obsolete now
    * Add "dports-create" option (full git repository cloned from github)
    * Add "dports-create-shallow" option (Depth=1 repository github clone)
    * Add "dports-update" option to pull latest from git repository
    * Add "dports-download" option (Download tarball from github, extract)
      (Has benefit that dports can be installed without git on system).
    * Add "dports-replace" option (When dports was previously installed from
      tarball, use the option to replace it by downloading and extracting
      newer tarball)
    * general cleanup

Summary of changes:
 etc/Makefile.usr |  213 +++++++++++++++++++++++++++++++++++++++++++++---------
 1 files changed, 180 insertions(+), 33 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4060abb317175b40853c1022ad81b1f2f3e24d34


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