9d43dc88bbc313921661c8b699e78550a2d86708

 1diff --git a/plugins/yarn/yarn.plugin.zsh b/plugins/yarn/yarn.plugin.zsh
 2new file mode 100644
 3index 0000000000000000000000000000000000000000..47c503acb0551ef632fcc97bb871654f02bed8b0
 4--- /dev/null
 5+++ b/plugins/yarn/yarn.plugin.zsh
 6@@ -0,0 +1,81 @@
 7+alias yi="yarn install"
 8+
 9+_yarn ()
10+{
11+    local -a _1st_arguments _dopts _dev _production
12+    local expl
13+    typeset -A opt_args
14+
15+    _dopts=(
16+        '(--force)--force[This refetches all packages, even ones that were previously installed.]'
17+    )
18+
19+    _installopts=(
20+        '(--flat)--flat[Only allow one version of a package. On the first run this will prompt you to choose a single version for each package that is depended on at multiple version ranges.]'
21+        '(--har)--har[Outputs an HTTP archive from all the network requests performed during the installation.]'
22+        '(--no-lockfile)--no-lockfile[Don’t read or generate a yarn.lock lockfile.]'
23+        '(--pure-lockfile)--pure-lockfile[Don’t generate a yarn.lock lockfile.]'
24+    )
25+
26+    _dev=('(--dev)--dev[Save installed packages into the project"s package.json devDependencies]')
27+
28+    _production=('(--production)--production[Do not install project devDependencies]')
29+
30+    _1st_arguments=(
31+      'help:Display help information about yarn' \
32+      'init:Initialize for the development of a package.' \
33+      'add:Add a package to use in your current package.' \
34+      'install:Install all the dependencies listed within package.json in the local node_modules folder.' \
35+      'publish:Publish a package to a package manager.' \
36+      'remove:Remove a package that will no longer be used in your current package.' \
37+      'cache:Clear the local cache. It will be populated again the next time yarn or yarn install is run.' \
38+      'clean:Frees up space by removing unnecessary files and folders from dependencies.' \
39+      'check:Verifies that versions of the package dependencies in the current project’s package.json matches that of yarn’s lock file.' \
40+      'ls:List all installed packages.' \
41+      'global:Makes binaries available to use on your operating system.' \
42+      'info:<package> [<field>] - fetch information about a package and return it in a tree format.' \
43+      'outdated:Checks for outdated package dependencies.' \
44+      'run:Runs a defined package script.' \
45+      'self-update:Updates Yarn to the latest version.' \
46+      'upgrade:Upgrades packages to their latest version based on the specified range.' \
47+      'why:<query> - Show information about why a package is installed.'
48+    )
49+    _arguments \
50+    '*:: :->subcmds' && return 0
51+
52+    if (( CURRENT == 1 )); then
53+        _describe -t commands "yarn subcommand" _1st_arguments
54+        return
55+    fi
56+
57+    case "$words[1]" in
58+        add)
59+        _arguments \
60+        $_dopts \
61+        $_dev \
62+        $_production
63+        ;;
64+        install)
65+        _arguments \
66+        $_installopts \
67+        $_dopts \
68+        $_dev \
69+        $_no_color \
70+        $_production
71+        ;;
72+        update)
73+        _arguments \
74+        $_dopts
75+        ;;
76+        remove)
77+        _arguments \
78+        $_dopts
79+        ;;
80+        *)
81+        _arguments \
82+        ;;
83+    esac
84+
85+}
86+
87+compdef _yarn yarn