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55 lines
1.2 KiB
Markdown
Vendored
55 lines
1.2 KiB
Markdown
Vendored
# Template methods
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Besides [Jinja2 global functions](https://jinja.palletsprojects.com/en/2.11.x/templates/#list-of-global-functions),
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the following methods can be used within templates:
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* `exists(path)`: returns true when path exists
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```
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{%@@ if exists('/dev/null') @@%}
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it does exist
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{%@@ endif @@%}
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```
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* `exists_in_path(name, path=None)`: returns true when executable exists in `$PATH`
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```
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{%@@ if exists_in_path('exa') @@%}
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alias ls='exa --git --color=always'
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{%@@ endif @@%}
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```
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* `basename(path)`: returns the `basename` of the path argument
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```
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{%@@ set dotfile_filename = basename( _dotfile_abs_dst ) @@%}
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dotfile dst filename: {{@@ dotfile_filename @@}}
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```
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* `dirname(path)`: returns the `dirname` of the path argument
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```
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{%@@ set dotfile_dirname = dirname( _dotfile_abs_dst ) @@%}
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dotfile dst dirname: {{@@ dotfile_dirname @@}}
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```
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Custom user-defined functions can be loaded with the help of the
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config entry `func_file`.
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Example:
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The config file:
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```yaml
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config:
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func_file:
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- /tmp/myfuncs_file.py
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```
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The python function under `/tmp/myfuncs_file.py`:
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```python
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def myfunc(arg):
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return not arg
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```
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The dotfile content:
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```
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{%@@ if myfunc(False) @@%}
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this should exist
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{%@@ endif @@%}
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``` |