Re: bash 4.3.48(1) and repo: processing of commands halts at first semicolon

[toww]

Chet:

Thank you for the pointers. I tried to read through the "repo" code all 
morning. I don't really know Python, but what I can see is that:
1) It appears to not invoke any specific shell. It seems to fork a new 
process, which would duplicate whatever shell it started with.
2) It has a "DoWork" function that manipulates stdin and stdout, 
processing commands and their outputs. I did not see it trying to break 
up long strings of commands.
I am debugging what appears to be a problem on our end. Using the "-x" 
setting you suggested, it looks like an intermediate script on my end, 
which for reasons unknown to me only runs for 4.3.48, is breaking up the 
multi-command string into a single string followed by tokens that I 
presume would be treated as extraneous arguments, rather than additional 
commands.
I am going to investigate things further on my end; you can put this 
matter on hold for now. Thank you for your help and sorry for the noise.
Tow


On 07/03/2018 09:59 AM, Chet Ramey wrote:
> On 7/3/18 10:34 AM, Chet Ramey wrote:
> > On 7/2/18 5:58 PM, toww wrote:
> >
> > > Bash Version: 4.3
> > > Patch Level: 48
> > > Release Status: release
> > >
> > > Description:
> > > There seems to be a new incompatibility or incorrect string parsing in how
> > > the Google "repo" utility interacts with the bash shell. Previously I could
> > > invoke the "repo" command, passing to it a string to execute multiple
> > > commands separated by semicolons (';' characters), and all commands would
> > > execute. Now with the latest bash 4.3.38, only the first command executes,
> > > and processing stops at the semicolon.
> > It would help to see the exact set of commands that repo uses to invoke the
> > shell, the options it passes to shell invocation. It would help more to
> > have a reproducer that doesn't involve `repo'.
> You could also check whether repo is invoking /bin/sh instead of /bin/bash,
> and, if so, whether bash is installed as /bin/sh.