[tycho-user] Update on macOS fails to execute chmod

[Thomas Kutz]

Hi all,

I am experiencing problems when updating my tycho built product on macOS.
So this is my scenario:

I have a product built with tycho 1.0.0 based on Eclipse Oxygen
(org.eclipse.rcp_4.7.2.v20171130-0510) and an update-site containing a
newer version of my custom features. When I update this product eclipse
with the features on my update-site, the executable looses its executable
bit, so I cannot open my product anymore.

I debugged it remotely and found out that there is an exception thrown in
ChmodAction when trying to execute Runtime.getRuntime().exec("chmod",
"755", "path/to/executable"): java.io.IOException: Cannot run program
“chmod”: error=2, No such file or directory

How can it be that chmod is not found (other binaries like "echo" are not
found either)?

This problem occurs on several macOS systems. That said, I should mention
that we also have an older version of our product (based on Neon) for which
the update mechanism works fine.

Is this something known, or does anyone have a clue what I can further test
to spot the bug?


Best regards,

Thomas Kutz

Telefon: [phone] <//[phone]>
Mobil: [phone] <//[phone]>

http://***@itemis.de

itemis AG | Am Brambusch 15-24 | 44536 LÃŒnen

Rechtlicher Hinweis:
Amtsgericht Dortmund, HRB 20621
Vorstand: Jens Wagener (Vors.), Wolfgang Neuhaus
Aufsichtsrat: Prof. Dr. Burkhard Igel (Vors.), Michael Neuhaus,
Jennifer Fiorentino

[Sievers, Jan]

cross-posting to p2-dev as this is happening in p2 code

chmod not being on the PATH seems strange to me.

Regards
Jan

From: <tycho-user-***@eclipse.org> on behalf of Thomas Kutz <***@itemis.de>
Reply-To: Tycho list <tycho-***@eclipse.org>
Date: Monday, 6. August 2018 at 16:45
To: Tycho list <tycho-***@eclipse.org>
Subject: [tycho-user] Update on macOS fails to execute chmod

Hi all,

I am experiencing problems when updating my tycho built product on macOS. So this is my scenario:

I have a product built with tycho 1.0.0 based on Eclipse Oxygen (org.eclipse.rcp_4.7.2.v20171130-0510) and an update-site containing a newer version of my custom features. When I update this product eclipse with the features on my update-site, the executable looses its executable bit, so I cannot open my product anymore.

I debugged it remotely and found out that there is an exception thrown in ChmodAction when trying to execute Runtime.getRuntime().exec("chmod", "755", "path/to/executable"): java.io.IOException: Cannot run program “chmod”: error=2, No such file or directory

How can it be that chmod is not found (other binaries like "echo" are not found either)?

This problem occurs on several macOS systems. That said, I should mention that we also have an older version of our product (based on Neon) for which the update mechanism works fine.

Is this something known, or does anyone have a clue what I can further test to spot the bug?


Best regards,

Thomas Kutz



Telefon: [phone]<tel://+49%20231%209860%20203>

Mobil: [phone]<tel://+49%20151%2062832253>

http://www.itemis.de<http://www.itemis.de/>

***@itemis.de<mailto:***@itemis.de>

itemis AG | Am Brambusch 15-24 | 44536 LÃŒnen

Rechtlicher Hinweis:

Amtsgericht Dortmund, HRB 20621

Vorstand: Jens Wagener (Vors.), Wolfgang Neuhaus

Aufsichtsrat: Prof. Dr. Burkhard Igel (Vors.), Michael Neuhaus, Jennifer Fiorentino