Fix update-doxygen, which fails when skia-autogen is reset

Fix update-doxygen, which fails when skia-autogen is reset

static_footer.txt was removed from skia/docs in r2837, but update-doxygen.sh
requires it to exist in skia-autogen.  If skia-autogen is cleared (frequently),
then static_footer.txt can't be found.  Add it back to trunk/tools and manually
copy it if needed.
Committed: https://code.google.com/p/skia/source/detail?r=5694

[TomH, 2012-09-26 15:28:40]

Concept/plan LGTM.
Get somebody else to sign off on the scripting?

[EricB, 2012-09-26 15:35:52]

cc djsollen@

[DerekS, 2012-09-26 15:58:55]

https://codereview.appspot.com/6568054/diff/1/trunk/tools/update-doxygen.sh
File trunk/tools/update-doxygen.sh (right):

https://codereview.appspot.com/6568054/diff/1/trunk/tools/update-doxygen.sh#n...
trunk/tools/update-doxygen.sh:34: TOOLS_DIR="$(cd "$(dirname "$0" )" && pwd )"
seems like the cd and pwd are kinda pointless as I think dirname $0 gives you
what you want

[EricB, 2012-09-26 16:03:24]

https://codereview.appspot.com/6568054/diff/1/trunk/tools/update-doxygen.sh
File trunk/tools/update-doxygen.sh (right):

https://codereview.appspot.com/6568054/diff/1/trunk/tools/update-doxygen.sh#n...
trunk/tools/update-doxygen.sh:34: TOOLS_DIR="$(cd "$(dirname "$0" )" && pwd )"
On 2012/09/26 15:58:56, DerekS wrote:
> seems like the cd and pwd are kinda pointless as I think dirname $0 gives you
> what you want

I think we'd only get the relative path to this script from where we launched
it, as opposed to the relative path from the current directory to this script.

[DerekS, 2012-09-26 16:09:11]

lgtm on the shell script