373684 - xpcshell on MozillaBuild needs -i to provide js prompt

Status: RESOLVED WORKSFORME

(Firefox Build System :: MozillaBuild, task)

Description

[Alex Vincent [:WeirdAl]]

Without the -i parameter, we never get a js> prompt; xpcshell simply freezes.

Steps to reproduce:
(1) Build trunk on MozillaBuild for Windows.
(2) Within the MozillaBuild environment, chdir to dist/bin, execute |xpcshell -w -s|.

Pike suggested -i to make it work, and he's right.

Comment 1

[Benjamin Smedberg]

This means that isatty() is returning the wrong value when launched from an msys shell. I wonder why.

Comment 2

[Axel Hecht]

Same thing happens from a cygwin shell. I recall it working OK if you're launching it from a windows cmd shell.

Comment 3

[Axel Hecht]

Duh on reload, reopening.

Comment 4

[Alex Vincent [:WeirdAl]]

It's worth mentioning that -i isn't documented:
http://www.mozilla.org/scriptable/XPCShell.html

Comment 5

[Benjamin Smedberg]

So it turns out this is because msys (and cygwin) shells like rxvt uses windows pipes, which return false for isatty(). This sucks, but there's apparently no way around it. So we should just document the flag and move on with our puny little lives.

We could alternately run bash in a windows console, instead of rxvt, if that makes things better somehow.

Comment 6

[[e-mail] (:bhearsum)]

Mass re-assign of MozillaBuild bugs into mozilla.org:MozillaBuild

Comment 7

[(not currently active) Ted Mielczarek]

We switched to using the Windows console in MozillaBuild 1.3, so this works fine now.