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89 lines
2.1 KiB
Org Mode
89 lines
2.1 KiB
Org Mode
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#+Title: a collection of examples for ob-shell tests
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#+OPTIONS: ^:nil
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* Sample data structures
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#+NAME: sample_array
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| one |
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| two |
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| three |
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#+NAME: sample_mapping_table
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| first | one |
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| second | two |
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| third | three |
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#+NAME: sample_big_table
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| bread | 2 | kg |
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| spaghetti | 20 | cm |
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| milk | 50 | dl |
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* Array tests
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:PROPERTIES:
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:ID: 0ba56632-8dc1-405c-a083-c204bae477cf
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:END:
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** Generic shell: no arrays
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#+begin_src sh :exports results :var array=sample_array
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echo ${array}
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#+end_src
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#+RESULTS:
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: one two three
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** Bash shell: support for arrays
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Bash will see a simple indexed array. In this test, we check that the
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returned value is indeed only the first item of the array, as opposed to
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the generic serialiation that will return all elements of the array as
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a single string.
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#+begin_src bash :exports results :var array=sample_array
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echo ${array}
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#+end_src
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#+RESULTS:
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: one
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* Associative array tests (simple map)
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:PROPERTIES:
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:ID: bec1a5b0-4619-4450-a8c0-2a746b44bf8d
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:END:
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** Generic shell: no special handing
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The shell will see all values as a single string.
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#+begin_src sh :exports results :var table=sample_mapping_table
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echo ${table}
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#+end_src
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#+RESULTS:
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: first one second two third three
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** Bash shell: support for associative arrays
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Bash will see a table that contains the first column as the 'index'
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of the associative array, and the second column as the value.
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#+begin_src bash :exports results :var table=sample_mapping_table
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echo ${table[second]}
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#+end_src
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#+RESULTS:
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: two
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* Associative array tests (more than 2 columns)
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:PROPERTIES:
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:ID: 82320a48-3409-49d7-85c9-5de1c6d3ff87
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:END:
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** Generic shell: no special handing
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#+begin_src sh :exports results :var table=sample_big_table
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echo ${table}
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#+end_src
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#+RESULTS:
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: bread 2 kg spaghetti 20 cm milk 50 dl
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** Bash shell: support for associative arrays with lists
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Bash will see an associative array that contains each row as a single
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string. Bash cannot handle lists in associative arrays.
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#+begin_src bash :exports results :var table=sample_big_table
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echo ${table[spaghetti]}
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#+end_src
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#+RESULTS:
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: 20 cm
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