Committing start at basic completion

1 files changed, 49 insertions, 0 deletions

diff --git a/bash/bashrc.d/completion.bash b/bash/bashrc.d/completion.bash
new file mode 100644
index 00000000..d51557ae
--- /dev/null
+++ b/bash/bashrc.d/completion.bash
@@ -0,0 +1,49 @@
+# builtin with builtins
+complete -b builtin
+
+# cd/pushd with directories
+complete -d cd pushd
+
+# command/hash/type with commands
+complete -c command hash type
+
+# set with options
+complete -A setopt set
+
+# shopt with shell options
+complete -A shopt shopt
+
+# unset with shell variables and functions
+complete -v -A function unset
+
+# ssh/sftp/ssh-copy-id with config hostnames
+_ssh() {
+    local word config hosts option value
+    word=${COMP_WORDS[COMP_CWORD]}
+    config=$HOME/.ssh/config
+    hosts=()
+
+    # Bail if the configuration file is illegible
+    if [[ ! -r $config ]]; then
+        return 1
+    fi
+
+    # Read hostnames from the file, no asterisks
+    while read -r option value _; do
+        if [[ $option == Host && $value != *'*'* ]]; then
+            hosts[${#hosts[@]}]=$value
+        fi
+    done < "$config"
+
+    # Generate completion reply
+    COMPREPLY=( $(compgen -W "${hosts[*]}" -- "$word") )
+}
+complete -F _ssh ssh sftp ssh-copy-id
+
+# scp/rsync with local files and hostnames (colon suffixes)
+_scp() {
+    _ssh
+    COMPREPLY=( "${COMPREPLY[@]/%/:}" )
+}
+complete -f -F _scp scp
+