failed to write tags but no warning

[vladak]

I tried to write some tags to files in a directory on SMB server which I don't have write permissions to and the tags did not get written (which is not surprising) but Tagger did not get any warning about the failure.

[Bilalh]

I never tried it on SMB server before, but I will look into it when I have time

[vladak]

I tried to reproduce the issue on local disk with a directory created under ~/Desktop from which I stripped write permissions (chmod -w ~/Desktop/tagtest). Observing Tagger with dtruss (https://github.com/joyent/dtruss-osx/blob/master/dtruss) I can see this:

thread_selfid(4419895296, 536576, 24863)         = 2347726 0
__disable_threadsignal(1, 0, 0)      = 0 0
workq_kernreturn(1, 4300018144, 0)       = 0 0
workq_kernreturn(1, 4300018096, 0)       = 0 0
getattrlist("/Users/vlad/Desktop/tagtest/1-15 Bella.mp3\0", 0x7FFF5FBFE7A0, 0x7FFF5FBFE3D0)      = 0 0
geteuid(140734799798736, 0, 140734799798976)         = 501 0
getattrlist("/Users/vlad/Desktop/tagtest/1-15 Bella.mp3\0", 0x7FFF5FBFC9F8, 0x7FFF5FBFC670)      = 0 0
geteuid(140734799792640, 0, 140734799793720)         = 501 0
geteuid(140734799798800, 0, 140734799798944)         = 501 0
geteuid(140734799798896, 0, 140734799799016)         = 501 0
geteuid(140734799795936, 0, 140734799796104)         = 501 0
fsgetpath(140734799798040, 1024, 140734799796096)        = 52 0
geteuid(140734799796752, 0, 140734799797312)         = 501 0
getattrlist("/.vol/234881026/3699929\0", 0x7FFF5FBFCBB0, 0x7FFF5FBFBF40)     = 0 0
geteuid(140734799795840, 0, 140734799795960)         = 501 0
geteuid(140734799789024, 0, 140734799789584)         = 501 0
getattrlist("/.vol/234881026/3699929\0", 0x7FFF5FBFAD80, 0x7FFF5FBFA0E0)     = 0 0
write_nocancel(2, "TagLib: \0", 8)       = 8 0
write_nocancel(2, "MPEG::File::save() -- File is read only.\0", 40)      = 40 0
write_nocancel(2, "\n\0", 1)         = 1 0

So something (a library used by Tagger ?) recognizes the file as read only but the error does not propagate up.

[Bilalh]

thanks for debugging