Command to move up directory tree to matching name

1 files changed, 36 insertions, 0 deletions

diff --git a/bash/bashrc.d/bd.bash b/bash/bashrc.d/bd.bash
new file mode 100644
index 00000000..2c955453
--- /dev/null
+++ b/bash/bashrc.d/bd.bash
@@ -0,0 +1,36 @@
+# Move back up the directory tree to the first directory matching the name
+bd() {
+
+    # If there are no arguments, we just move up one directory (cd ..)
+    if [[ $1 ]] ; then
+        dir="${PWD%/${1:?}*}"/"$1"
+    else
+        dir=..
+    fi
+
+    # Check the directory exists and try to cd into it if possible
+    if [[ -d $dir ]] ; then
+        builtin cd -- "$dir"
+    else
+        printf 'bash: No dir found in PWD named %s' >&2
+        return 1
+    fi
+}
+
+# Completion setup for bd
+_bd() {
+    local word=${COMP_WORDS[COMP_CWORD]}
+
+    # Build a list of dirs in $PWD
+    local -a dirs
+    while read -d / -r dir ; do
+        if [[ $dir ]] ; then
+            dirs=("${dirs[@]}" "$dir")
+        fi
+    done < <(printf %s "$PWD")
+
+    # Complete with matching dirs
+    COMPREPLY=( $(compgen -W "${dirs[*]}" -- "$word") )
+}
+complete -F _bd bd
+