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https://github.com/eikek/elv-modules
https://github.com/eikek/elv-modules
elv elvish
Last synced: 5 days ago
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- Host: GitHub
- URL: https://github.com/eikek/elv-modules
- Owner: eikek
- Created: 2018-12-06T20:47:12.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2020-01-18T08:34:39.000Z (almost 5 years ago)
- Last Synced: 2024-10-30T01:49:59.208Z (about 2 months ago)
- Topics: elv, elvish
- Size: 12.7 KB
- Stars: 2
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Elvish Modules
Some utilities for life in [elvish](https://elv.sh). I learned a lot
from looking [here](https://github.com/zzamboni/elvish-modules) –
thanks!
## list.elv
Here are some helpers when working with lists and maps.
### `get`
Get some value from a list or a map. When used with a map, allows to
recursively get a value from nested maps.
``` elv
m = [&a=[&b=[&c=42]]]
(list-get a.b.c) $m
42
```
### `with`
Takes a function and applies it to each element and returns the tuple
of argument and result (or adds the result to the list if the argument
is a list).
Can be useful to attach information to items:
``` elv
put *.elv | each (list:with (file:lines))
[csv.elv 138]
[file.elv 100]
[list.elv 184]
[util.elv 17]
```
### `contains`
Check whether a list contains an element.
``` elv
(contains [1 3 4 2]) 4
$true
(contains [1 3 4 2]) abc
$false
```
## csv.elv
Tried to implement a simple csv reader. It can transform csv into list
or maps, that are then easier to work with.
### `csv-to-list`
``` elv
echo 'aa,bb,"cc,dd",,,' | each (csv-to-list)
[aa bb 'cc,dd' '' '' '']
```
### `csv-to-map`
``` elv
echo "name,number,date\ntest 10,1,2018-11-29\ntest 20,2,2018-12-06"| each (csv-to-map)
[&date=2018-11-29 &name='test 10' &number=1 &index=1]
[&date=2018-12-06 &name='test 20' &number=2 &index=2]
```
### `list-to-csv`
``` elv
put [1 2 3] [a b c] | each (list-to-csv)
'1,2,3'
'a,b,c'
```
### `map-to-csv`
``` elv
put [&name=test &number=23 &date=2018-02-31] | each (map-to-csv)
'date,name,number'
'2018-02-31,test,23'
```
## file.elv
Some utilities for files and names.
### `stat`
Executes the external `stat` command and returns the result in a map.
``` elv
file:stat file.elv
[&last-access-sec=1.544128641e+09 &size=1718 &user=eike &last-mod='2018-12-06 21:37:13.763287004 +0100' &name=file.elv &type='regular file' &group-id=100 &last-mod-sec=1.544128633e+09 &group=users &last-access='2018-12-06 21:37:21.097246328 +0100' &user-id=1000]
```
## nix.elv
Utilities for working with [nix](https://nixos.org/nix)/[nixos](https://nixos.org/nixos).
### Searching packages
The `sqlite3` command is required.
First build a database, either using `nix-env` or a `packages.json` file on [nixos server](https://nixos.org).
```
update-db-from-nix-env
Creating statements: 20867/20867 ...
Updating database ...
Done.
```
Then search for packages:
```
search jdk
nixos.oraclejdk8psu oraclejdk-8u191 (unfree)
nixos.jdk11_headless openjdk-11.0.1-b13-headless (gpl2) The open-source Java Development Kit
nixos.oraclejdk8 oraclejdk-8u191 (unfree)
nixos.adoptopenjdk-jre-openj9-bin-11 adoptopenjdk-jre-openj9-bin-11.0.1 (gpl2Classpath) AdoptOpenJDK, prebuilt OpenJDK binary
nixos.bazel_jdk11 bazel-0.18.0 (asl20) Build tool that builds code quickly and reliably
nixos.jetbrains.jdk jetbrainsjdk-152b1248.6 (gpl2) An OpenJDK fork to better support Jetbrains's products.
nixos.adoptopenjdk-bin adoptopenjdk-hotspot-bin-11 (gpl2Classpath) AdoptOpenJDK, prebuilt OpenJDK binary
nixos.openjdk openjdk-8u192b26 (gpl2) The open-source Java Development Kit
nixos.openjdk11 openjdk-11.0.1-b13 (gpl2) The open-source Java Development Kit
nixos.bootjdk openjdk-bootstrap ()
nixos.oraclejdk oraclejdk-8u191 (unfree)
nixos.adoptopenjdk-jre-bin adoptopenjdk-jre-hotspot-bin-11 (gpl2Classpath) AdoptOpenJDK, prebuilt OpenJDK binary
nixos.jdk openjdk-8u192b26 (gpl2) The open-source Java Development Kit
nixos.adoptopenjdk-openj9-bin-11 adoptopenjdk-openj9-bin-11.0.1 (gpl2Classpath) AdoptOpenJDK, prebuilt OpenJDK binary
nixos.jdk11 openjdk-11.0.1-b13 (gpl2) The open-source Java Development Kit
```
## completer.elv
Argument completion for some commands:
- [pass](https://www.passwordstore.org/)