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Moving files between git repositories, preserving history

April 17, 2015

I needed to copy a directory between two git repositories while preserving its history. I found some good instructions at http://gbayer.com/development/moving-files-from-one-git-repository-to-another-preserving-history/, which got me started, but I figured out a way to avoid having to move all the files into their directory again (lines 5-6 in Greg’s instructions) by reversing the filter to remove everything I don’t want instead of only including the directory I want. Here are the steps (the idea is the same as in Greg’s post, so please read that to get the explanation, I’m only listing the commands here for reference):

Three levels of GIT config

April 17, 2015

via http://www.codinginahurry.com/2011/02/05/three-levels-of-git-config/

Very nice explanation, via coding in a hurry
There are 3 levels of git config; project, global and system.
      • project: Project configs are only available for the current project and stored in .git/config in the project's directory.
      • global: Global configs are available for all projects for the current user and stored in ~/.gitconfig.
      • system: System configs are available for all the users/projects and stored in /etc/gitconfig.
Create a project specific config, you have to execute this under the project's directory.
git config user.name "John Doe"
Create a global config
git config --global user.name "John Doe"
Create a system config
git config --system user.name "John Doe"
And as you may guess, project overrides global and global overrides system.

Watching for changes (Polling notifications) in Evernote

April 16, 2015

via https://dev.evernote.com/doc/articles/polling_notification.php

Useful note about how to poll an Evernote account for new content. Also a test of web clipping with Enwrite.

Polling

If your app wants to know about changes in a user's Evernote account, you'll probably consider calling the NoteStore.findNotesMetadata function periodically to search for new notes. findNotes is incredibly powerful, but it's also expensive for our servers - we need to load the user's Lucene index, perform the search across all of their notes, hit the database to pull out the results, and send those results over the network to your app. If you're building a web application, you should use webhooks instead of polling. If you have to poll, you should follow the guidelines below.

How to create a new KVM VM using command line tools

April 14, 2015

virt-install --name=hostname --arch=x86_64 --vcpus=2 --ram=4096 --os-type=linux --os-variant=rhel7 --hvm --connect=qemu:///system --network bridge:br-fabric --cdrom=/var/lib/libvirt/images/CentOS-7.0-1406-x86_64-Minimal.iso --disk path=/var/lib/libvirt/images/hostname.img,size=32 --accelerate --vnc

Find all single-note tags in Evernote

January 14, 2015
I’ve been working on cleaning up my Evernote, and noticed that I have a lot of tags assigned to a single note. I had successfully used Veritrope’s excellent Evernote empty tag remover applescript, so I made some small changes to write the attached script, which will find all single-note tags in your Evernote and list them in a new note, including links to each note. This makes it much easier to go through them and see which of those tags could be removed.

Just download the script, open it in Script Editor and run it.

Tip of the hat to Justin for his excellent collection of scripts at Veritrope!

(*
Evernote -- Find all single-note tags
January 13, 2015, Diego Zamboni
http://zzamboni.postach.io/find-all-single-note-tags-in-evernote
Based on:
http://veritrope.com
Evernote -- Empty Tag Remover
http://veritrope.com/code/evernote-empty-tag-remover
*)
set output to {}
tell application "Evernote"
try
set theTags to every tag
repeat with theTag in theTags
set theNotes to {}
set theName to "\"" & name of theTag & "\""
set theNotes to (find notes "tag:" & theName)
if (count of theNotes) is 1 then
copy ((name of theTag) & ": " & "<a href='" & (note link of (first item of theNotes)) & "'>" & (title of (first item of theNotes)) & "</a>") to the end of output
end if
end repeat
end try
set sortedTags to my simple_sort(output)
set oldDelim to AppleScript's text item delimiters
set AppleScript's text item delimiters to "<br>"
set articleList to sortedTags as text
set AppleScript's text item delimiters to oldDelim
set o to create note with html articleList title "Single-note tags"
open note window with o
end tell
--SORT SUBROUTINE
on simple_sort(my_list)
set the index_list to {}
set the sorted_list to {}
repeat (the number of items in my_list) times
set the low_item to ""
repeat with i from 1 to (number of items in my_list)
if i is not in the index_list then
set this_item to item i of my_list as text
if the low_item is "" then
set the low_item to this_item
set the low_item_index to i
else if this_item comes before the low_item then
set the low_item to this_item
set the low_item_index to i
end if
end if
end repeat
set the end of sorted_list to the low_item
set the end of the index_list to the low_item_index
end repeat
return the sorted_list
end simple_sort
view raw Evernote - List tags that have a single note.scpt hosted with ❤ by GitHub

Mac keyboard shortcuts by Matt Gemmell

May 16, 2014
Another great article by Matt Gemmell. I knew most of them, but learned a few things. The golden part for me were the third-party utilities, in particular Shortcat, which I didn’t know and is amazing:

> It’s basically Spotlight but for all visible controls and objects on the screen: it’s type-to-select for *everything you can see*.


The whole article is worth a read.

How to solve truncated docker output in Mac OS X using boot2docker

May 12, 2014

If you are using docker on Mac OS X using boot2docker (http://docs.docker.io/installation/mac/), you may see truncated output from docker run, and also may have noticed that docker attach does not work properly, producing only some output and then exiting. This bug is documented here: https://github.com/boot2docker/boot2docker/issues/150, where I also found the following workaround. Documenting it here in case anyone finds it useful:

Instead of using the default value of DOCKER_HOST provided by boot2docker up, establish the docker connection through an ssh tunnel: