From 0254c947f04abacdb932d21f7fca5ad0113bc5f3 Mon Sep 17 00:00:00 2001
From: Alan Pearce
Date: Sun, 7 May 2017 00:10:06 +0200
Subject: post: Repository management with ghq

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+Tags = ["development","git"]
+date = "2017-05-06T23:31:51+02:00"
+title = "Repository management with ghq"
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+
+I recently encountered [ghq][], a tool for automatically organising VCS-backed
+projects automatically.  Give it a repository URL, it will clone a project to
+your projects dir (set by `$GHQ_ROOT`) like so:
+
+{{< highlight sh >}}
+$ ghq get https://github.com/motemen/ghq
+# Runs `git clone https://github.com/motemen/ghq ~/.ghq/github.com/motemen/ghq`
+{{< /highlight >}}
+
+I don't like the idea of having projects hidden away, so I set
+`$GHQ_ROOT` to `$HOME/projects`.
+
+From there, the `list` and `look` subcommands allow listing
+repositories and visiting them in the shell (actually a subshell).
+
+I wanted a nicer way to visit project directories.  Since I'm
+using [fzf][] as a fuzzy-finder, I thought it would be nice to use it
+for this.  I created a simple function, `fp` (find project) to do that:
+
+{{< highlight sh >}}
+fp () {
+  ghq look $(ghq list | fzf +m)
+}
+{{< /highlight >}}
+
+I ran into some issues with the subshell of `ghq look` and wondered
+whether it might be possible to create a zsh command to remove the
+need for a subshell.
+
+I found that `fzf` includes a [cd-widget function][fzf-cd-widget] and created
+something similar that uses `ghq` instead of `find`:
+
+{{< highlight sh >}}
+cd-project-widget () {
+  local cmd="ghq list"
+  setopt localoptions pipefail 2> /dev/null
+  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" fzf +m)"
+  if [[ -z "$dir" ]]; then
+    zle redisplay
+    return 0
+  fi
+  cd $(ghq list --full-path | grep "$dir")
+  local ret=$?
+  zle reset-prompt
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  return $ret
+}
+zle -N cd-project-widget
+{{< /highlight >}}
+
+It should be quite simple to modify it to work with other
+fuzzy-finders.  The basic idea is to show the output of `ghq list` for
+selection, and use `ghq list --full-path` with the selected candidate
+to print the correct directory for `cd`.
+
+What's really nice about this, is that I can bind it to a key
+sequence:
+
+{{< highlight sh >}}
+bindkey '\es' cd-project-widget
+{{< /highlight >}}
+
+Now I can press `M-s` in a shell, start typing "dotfiles" and press enter to `cd`
+to my [dotfiles][] project. Pretty neat!
+
+[ghq]:https://github.com/motemen/ghq
+[fzf]:https://github.com/junegunn/fzf
+[fzf-cd-widget]:https://github.com/junegunn/fzf/blob/337cdbb37c1efc49b09b4cacc6e9ee1369c7d76d/shell/key-bindings.zsh#L40-L54
+[dotfiles]:https://git.alanpearce.eu/dotfiles
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