[Solved] 31 Build Failure on Debian 9.13

[kbocek]

Trying to compile 31 on Debian 9.13. Running ' ./build-debs.sh fixes/31' yeilds:

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Missing build dependencies for mythtv, will install them now:
./build-debs.sh: line 235: root: unbound variable

The script says it will install dependencies but I've had to do that manually. I just don't know what's required here.

[kbocek]

Nothing? Is anyone on Debian? Any way to list dependencies so I can manually install them?

[bill6502]

Use Ansible, the buildbots do, although Debian 9 (Stretch) is no longer being built there
(https://wiki.debian.org/LTS).

https://www.mythtv.org/wiki/Build_from_ ... th_Ansible

[kbocek]

I am unfamiliar with ansible. But following the instruction:
https://github.com/MythTV/ansible

Running the command

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sudo ansible-playbook -i hosts qt5.yml

Yields:

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ERROR! The field 'loop' is supposed to be a string type, however the incoming data structure is a <class 'ansible.parsing.yaml.objects.AnsibleSequence'>

The error appears to have been in '/root/ansible/roles/mythtv-macports/tasks/main.yml': line 114, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:


- name: select the installed version of python
  ^ here

[kbocek]

I got it to work by commenting out the mythtv-macports line in qt5.yml.

[kbocek]

Shoot. Still getting an error in build-debs.sh:

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Missing build dependencies for mythtv, will install them now:
./build-debs.sh: line 235: root: unbound variable

[kbocek]

I fixed it by removing the $root variable from build-debs.sh line 235 and running that script as root. Dependencies were installed. 31 is compiling now.

[bill6502]

It's an Ansible version issue. loop: was introduced in 2.5.
with_list: is the 'old' way. Thanks for mentioning that. Fix pushed.

The check for 'sudo' has been around since last August. I don't have
a pure Debian host to test, but do these two work in Stretch?

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$ id -ru ; echo $?
1000
0
$ command -v sudo ; echo $?
/usr/bin/sudo
0

Looks like that code should fail (die) if not run as root and sudo isn't available.

[pgbennett]

Normally an unbound variable silently evaluates to null, unless you have set the '-u' option. I suspect that somewhere you have "set -u", perhaps in .profile or .bashrc.

You could solve that by running "set +u" before building, or removing "set -u" from wherever it is set.

Also it looks like $root is provided to help you if you don't want to run build under root. You could set root to sudo so that only the necessary parts run under root.
export root=sudo

[kbocek]

I was running this as the root user. Looking at /root/.bashrc I don't see any "set -u". However as I said it compiled fine with my fix.

[kbocek]

Bill your two commands give:

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root@myth:~# id -ru ; echo $?
0
0
root@myth:~# command -v sudo ; echo $?
/usr/bin/sudo
0

[bill6502]

Sounds llike Peter identified the issue: set -e -u is the 2nd line of build-debs.sh

Does setting root just before it's supposed to be set help:

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diff --git a/deb/build-debs.sh b/deb/build-debs.sh
index 7620e86..9680025 100755
--- a/deb/build-debs.sh
+++ b/deb/build-debs.sh
@@ -112,6 +112,8 @@ case "$GIT_BRANCH" in
        ;;
 esac
 
+root=""
+
 if [ "$(id -ru)" -ne 0 ]; then
        if have sudo; then
                root=sudo

[pgbennett]

You can't have spaces when setting a variable
It will have to be be
root=""