The awk script now performs all processing in the BEGIN block using an
implementation that is capable of handling if statements which contain nested
if statments (fixes#436). To make nested ifs look better, if, else and endif
lines can now have optional whitespace before {%.
Includes are now handled in the same way as the main file which means that
included files can both include other files and have if statements in addition
to variables (fixes#406). Include lines can now also have optional whitespace
before {%.
All variables are handled in the same way now so it's now possible to use env
variables in if statements (fixes#488).
Also add support for != in addition to == (fixes#358). Thus it's now
e.g. possible to check if a variable is set (#477) by doing:
{% if yadm.class != ""%}
Class is set to {{ yadm.class }}
{% endif %}
A non-existing yadm or env variable is now replaced with the empty string.
A local class is set with:
$ yadm config local.class cls1
More classes can be added with:
$ yadm config --add local.class cls2
$ yadm config --add local.class cls3
Any of cls1, cls2 and cls3 can be used in an alternate condition.
For templates, the existing variable yadm.class/YADM_CLASS is set to
the last class (i.e. cls3) to remain compatible with how it works
today and with what the following command gives:
$ yadm config local.class
For the default template processor there is no explicit yadm.classes
variable. Instead a yadm.class condition will check against all
classes.
For the other processors, a new template variable YADM_CLASSES will be
set to all classes separated by newline. For jinja2 templates a class
can be checked with: {%- if "cls" in YADM_CLASSES.split("\n") %}
For esh templates the logic is a bit more complex, but it is possible
to do.
Fixes#185.
Instead of duplicating the permissions on the temp file, the permissions
are duplicated on the output file directly. If the output file exists as
read-only, it is made writeable first.
There are some environments which don't allow the mv to work if the file
itself is read-only.
The syntax is '{% include "file" %}' where file is either an absolute path or a
path relative to the current template file's directory.
Variables in the included file will be replaced as for the main template. But
the included file can't include files itself.
