Category Archives: fedora

git diff like highlighting of extra whitespace in vim and emacs

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via Jim Meyering via coreutils list

Some configs for vim and emacs to show trailing whitespace and other whitespace anomalies.

vim config

let c_space_errors=1
highlight RedundantSpaces ctermbg=red guibg=red
match RedundantSpaces /\s\+$\| \+\ze\t/

Emacs needs the Whitespace mode from http://www.emacswiki.org/emacs/WhiteSpace

The default config is a bit overboard for me, so I use something more like:

;http://www.emacswiki.org/emacs/WhiteSpace
(require 'whitespace)
(autoload 'global-whitespace-mode "whitespace" "Toggle whitespace visualization." t)
(autoload 'global-whitespace-toggle-options "whitespace" "Toggle local `whitespace-mode' options." t)

;turn on the more or less git diff --color whitespace highlighting
(setq whitespace-space whitespace-style (quote (face tabs trailing space-before-tab newline empty space-after-tab indentation)))

gitconfig

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I finally started organizing the various git commands and aliases I use alot, and published them to github. My gitconfig repo.

Some of these are useful only for projects similar to mine (fedora, tito based, bugzilla, etc) but I think some of then are generally useful.

A few favorites:
# commits not pushed to $1
unpushed = cherry -v

# ignore po files in "git log", sorry translators ;-<
slog = "!sh -c 'git log --no-merges $1 `ls | grep -v ^po`' -"

# what tag contains the sha
whatrelease = name-rev --name-only

# what branch contains the sha
contains = branch --contains

# what got pushed to master in the last hour
# based on http://stackoverflow.com/questions/3357219/expose-the-date-a-commit-was-pushed-to-a-repository
justpushed = log origin/master@{\"1 hour ago\"}..origin/master --

# show a list of branches sorted by time of last commit
brage = "!sh -c 'for C in $(git for-each-ref --sort=committerdate refs/heads --format=\"%(refname:short)\") ; do git show -s pretty=format:\"%Cgreen%ci %Cblue%cr%Creset $C\" \"$C\" -- ; done'"

# show a list of tags sorted by when they were tagged
tagage = "!sh -c 'git for-each-ref --sort=taggerdate refs/tags --format=\"%(refname:short)\"'"

# show a list of every branch and show there latests commit, sorted by last commit
brlog = "!sh -c 'for C in $(git for-each-ref --sort=committerdate refs/heads --format=\"%(refname:short)\") ; do git show -s --pretty=format:\"%Cgreen%ci %Cblue%cr%Creset $C\" \"$C\" -- ; git show -s $C ; echo; done'"

# needs python-bugzilla, and git-showbugs
openbugs = showbugs -s NEW,ASSIGNED,NEEDINFO,FAILS_QA,REOPENED,ON_DEV
closedbugs = showbugs -s PASSES_QA,VERIFIED,RELEASE_PENDING,CLOSED

# show a list of files with bug fixes in them, sorted by popularity of occurance
# aka, list the buggy files
buggyfiles = !"git log --format=\"format:%n\" --grep \"^[[:digit:]]\\+:\" --name-only | grep . | sort | uniq -c | sort -n"

ring ring, fedoraphone!

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I managed to get one of my machines installed with a os version I didn’t want, and no way to change it. Normally, this means it’s time to koan/cobbler to get it re-provisioned. But I couldn’t log into the machine to do anything. I could of reinstalled it from a cd/dvd, but I hate burning cd/dvd’s for that. I could of written an image to usb key and installed from that, but I didn’t have any with me.

So I decided to try what Mark Cox; did and try to boot it from my phone. I more or less just followed the steps he mentioned, though I had to get some 3rd party software to expose the storage card as a usb device.

But that aside, it worked. Not the fastest way to boot, but it got the live image running so I could do a hard drive install.  Kind of cool. Wonder if there is anyway to support i386/x86_64 live images on the same card?