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authorTom Ryder <tom@sanctum.geek.nz>2017-03-29 10:50:26 +1300
committerTom Ryder <tom@sanctum.geek.nz>2017-03-29 10:50:26 +1300
commit162f108b44470d34d2dec149b295c6d2a8356d6d (patch)
tree640e7197c822efdf3be77d290fb0031a3f64c868
parentUpdate submodules (diff)
downloaddotfiles-162f108b44470d34d2dec149b295c6d2a8356d6d.tar.gz
dotfiles-162f108b44470d34d2dec149b295c6d2a8356d6d.zip
Add gt() (go to)
-rw-r--r--README.markdown3
-rw-r--r--sh/shrc.d/gt.sh28
2 files changed, 30 insertions, 1 deletions
diff --git a/README.markdown b/README.markdown
index 8b95e1a9..874e0fc2 100644
--- a/README.markdown
+++ b/README.markdown
@@ -180,10 +180,11 @@ in `sh/shrc.d` to be loaded by any POSIX interactive shell. Those include:
* `gd()` goes to the marked directory.
* `pmd()` prints the marked directory.
* `xd()` swaps the current and marked directories.
-* Nine other directory management and navigation functions:
+* Ten other directory management and navigation functions:
* `ad()` is a `cd` shortcut accepting targets like `/u/l/b` for
`/usr/local/bin`, as long as they are unique.
* `bd()` changes into a named ancestor of the current directory.
+ * `gt()` changes into a directory or into a file's directory.
* `mkcd()` creates a directory and changes into it.
* `pd()` changes to the argument's parent directory.
* `rd()` replaces the first instance of its first argument with its
diff --git a/sh/shrc.d/gt.sh b/sh/shrc.d/gt.sh
new file mode 100644
index 00000000..d18a4ab8
--- /dev/null
+++ b/sh/shrc.d/gt.sh
@@ -0,0 +1,28 @@
+# If the argument is a directory, change to it. If it's a file, change to its
+# parent. Stands for "get to".
+gt() {
+
+ # Check argument count
+ if [ "$#" -gt 1 ] ; then
+ printf >&2 'gd(): Too many arguments\n'
+ return 2
+ fi
+
+ # Strip trailing slash
+ set -- "${1%/}"
+
+ # If target doesn't have a leading slash, add PWD prefix
+ case $1 in
+ /*) ;;
+ *) set -- "${PWD%/}"/"$1"
+ esac
+
+ # If target isn't a directory, chop to its parent
+ [ -d "$1" ] || set -- "${1%/*}"
+
+ # If target is now empty, go to the root
+ [ -n "$1" ] || set -- /
+
+ # Try to change into the determined directory
+ command cd -- "$@"
+}