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bitbake: bitbake-user-manual-fetching.xml: note about URLs with semi-colons

Some URLs contain semi-colons. Unfortunatelly, bitbake uses semi-colons in SRC_URI
as delimiters for various parameters.
It may still be possible to use such URLs, providing the user replaces semi-colons ';'
with '&' characters.

For example:

   http://abc123.com/git/?p=gcc/gcc.git;a=snapshot;h=a5dd47

 and

   http://abc123.com/git/?p=gcc/gcc.git&a=snapshot&h=a5dd47

should be equivalent, as W3C recommends treating ';' in queries identically to '&'.

See http://www.w3.org/TR/1999/REC-html401-19991224/appendix/notes.html#h-B.2.2

Kudos to Olof Johansson

(Bitbake rev: d8953c16c52c6e5de879f4a32ec8aeee396bb410)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Juro Bystricky
2015-07-29 11:09:41 -07:00
committed by Richard Purdie
parent 7f4eb55d70
commit e4a4c9b1ac
@@ -325,6 +325,25 @@
SRC_URI = "ftp://you@oe.handhelds.org/home/you/secret.plan"
</literallayout>
</para>
<note>
Because URL parameters are delimited by semi-colons, this can
introduce ambiguity when parsing URLs that also contain semi-colons,
for example:
<literallayout class='monospaced'>
SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git;a=snapshot;h=a5dd47"
</literallayout>
Such URLs should should be modified by replacing semi-colons with '&amp;' characters:
<literallayout class='monospaced'>
SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git&amp;a=snapshot&amp;h=a5dd47"
</literallayout>
In most cases this should work. Treating semi-colons and '&amp;' in queries
identically is recommended by the World Wide Web Consortium (W3C).
Note that due to the nature of the URL, you may have to specify the name
of the downloaded file as well:
<literallayout class='monospaced'>
SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git&amp;a=snapshot&amp;h=a5dd47;downloadfilename=myfile.bz2"
</literallayout>
</note>
</section>
<section id='cvs-fetcher'>