97c01e48ed
Currently we have all our elements and library files in a top-level directory and install them into <root>/share/diskimage-builder/[elements|lib] (where root is either / or the root of a virtualenv). The problem with this is that editable/development installs (pip -e) do *not* install data_files. Thus we have no canonical location to look for elements -- leading to the various odd things we do such as a whole bunch of guessing at the top of disk-image-create and having a special test-loader in tests/test_elements.py so we can run python unit tests on those elements that have it. data_files is really the wrong thing to use for what are essentially assets of the program. data_files install works well for things like config-files, init.d files or dropping documentation files. By moving the elements under the diskimage_builder package, we always know where they are relative to where we import from. In fact, pkg_resources has an api for this which we wrap in the new diskimage_builder/paths.py helper [1]. We use this helper to find the correct path in the couple of places we need to find the base-elements dir, and for the paths to import the library shell functions. Elements such as svc-map and pkg-map include python unit-tests, which we do not need tests/test_elements.py to special-case load any more. They just get found automatically by the normal subunit loader. I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28) to move disk-image-create to a regular python entry-point. Unfortunately, this has to move to work with setuptools. You'd think a symlink under diskimage_builder/[elements|lib] would work, but it doesn't. [1] this API handles stuff like getting files out of .zip archive modules, which we don't do. Essentially for us it's returning __file__. Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
30 lines
860 B
Bash
Executable File
30 lines
860 B
Bash
Executable File
#!/bin/bash
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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DIB_CLOUD_INIT_DATASOURCES=${DIB_CLOUD_INIT_DATASOURCES:-""}
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if [ -z "$DIB_CLOUD_INIT_DATASOURCES" ] ; then
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echo "DIB_CLOUD_INIT_DATASOURCES must be set to a comma-separated list "
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echo "of cloud-init data sources you wish to use, ie 'Ec2, NoCloud, ConfigDrive'"
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exit 1
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fi
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if [ -d /etc/cloud/cloud.cfg.d ]; then
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# DatasourceNone doesn't exist in Ubuntu 12.04 (Precise)
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# which uses cloud-init version 0.6.3
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if [ "$(lsb_release -cs)" = 'precise' ] ; then
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cat > /etc/cloud/cloud.cfg.d/91-dib-cloud-init-datasources.cfg <<EOF
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datasource_list: [ $DIB_CLOUD_INIT_DATASOURCES ]
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EOF
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else
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cat > /etc/cloud/cloud.cfg.d/91-dib-cloud-init-datasources.cfg <<EOF
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datasource_list: [ $DIB_CLOUD_INIT_DATASOURCES, None ]
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EOF
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fi
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fi
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