Add tmux package and common dotfiles deployment

dotfiles/common/.tmux/plugins/tmux-project/LICENSE

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+MIT License
+
+Copyright (c) 2019-2021 Seong Yong-ju
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

dotfiles/common/.tmux/plugins/tmux-project/README.md

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+# tmux-project
+
+Search projects and open them in a new session.
+
+## Prequisites
+
+- find
+- [fzf](https://github.com/junegunn/fzf) (needs `fzf-tmux` to be installed)
+
+## Install
+
+### Installation with [tpm](https://github.com/tmux-plugins/tpm) (recommended)
+
+Add the following line to your `.tmux.conf`.
+
+```tmux
+set -g @plugin 'sei40kr/tmux-project'
+```
+
+---
+
+It is also recommended to add the following line to your `.tmux.conf` to prevent
+a client from being detached when the active session is destroyed.
+
+```tmux
+set detach-on-destroy no-detached
+```
+
+## Customization
+
+| Variable                        | Default value         | Description                                                                       |
+| :------------------------------ | :-------------------- | :-------------------------------------------------------------------------------- |
+| `@project-key`                  | `"g"`                 | The key to invoke the project search. If you set it to `""`, the key is disabled. |
+| `@project-base-dirs`            | `""`                  | A comma-separated list of directories and their depths to search for projects.    |
+| `@project-rooters`              | `".git"`              | A comma-separated list of rooters.                                                |
+| `@project-fzf-tmux-layout-opts` | `""`                  | The layout options for fzf-tmux. See `fzf-tmux(1)` for details.                   |
+| `@project-fzf-opts`             | `"--preview 'ls {}'"` | The options for fzf. See `fzf(1)` for details.                                    |
+
+### Setting `@project-base-dirs`
+
+`@project-base-dirs` is a comma-separated list of directories and their depths to search for projects.
+
+Each element of the list is in the following format:
+
+```
+/path/to/dir[:<min depth>[:<max depth>]]
+```
+
+- If you omit `<min depth>` and `<max depth>`, they are set to `0` and `0` respectively.
+- If you omit `<max depth>`, it is set to `<min depth>`. (means `<min depth>` is the exact depth)
+
+If you omit the depth or explicitly set it to `0`, the directory itself will be
+added as a project. In that case, you can add the directory as a project even if
+it contains no rooter.
+
+---
+
+For example, if you want to search for ghq repositories as projects:
+
+```tmux
+set -ag @project-base-dirs ,"${GHQ_ROOT}:3"
+```
+
+For example, if you want to add `~/.vim` itself as a project:
+
+```tmux
+set -ag @project-base-dirs ,"${HOME}/.vim"
+```
+
+## tmuxinator Integration
+
+tmux-project can be integrated with [tmuxinator](https://github.com/tmuxinator/tmuxinator).
+When you have tmuxinator installed and the selected project has
+`.tmuxinator.yml` at the root, tmux-project will start a new session with
+tmuxinator.
+
+## License
+
+MIT

dotfiles/common/.tmux/plugins/tmux-project/flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1683014792,
+        "narHash": "sha256-6Va9iVtmmsw4raBc3QKvQT2KT/NGRWlvUlJj46zN8B8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1a411f23ba299db155a5b45d5e145b85a7aafc42",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

dotfiles/common/.tmux/plugins/tmux-project/flake.nix

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+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, flake-utils, nixpkgs }: flake-utils.lib.eachDefaultSystem (system:
+    let
+      pkgs = import nixpkgs { inherit system; };
+    in
+    {
+      packages.default = pkgs.callPackage ./packages/default.nix { };
+
+      devShells.default =
+        let
+          tmux_conf = pkgs.writeText "tmux.conf" ''
+            run-shell ${self.packages.${system}.default.rtp}/project.tmux
+          '';
+        in
+        pkgs.mkShell {
+          buildInputs = with pkgs; [ tmux fzf ];
+          shellHook = ''
+            TMUX= TMUX_TMPDIR= exec tmux -f ${tmux_conf}
+          '';
+        };
+    }
+  );
+}

dotfiles/common/.tmux/plugins/tmux-project/lib/tmux.bash

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+get_tmux_option() {
+	local option=$1
+	local default_value=$2
+	local option_value
+
+	option_value=$(tmux show -gqv "$option")
+	echo "${option_value:-$default_value}"
+}

dotfiles/common/.tmux/plugins/tmux-project/libexec/switch-project.bash

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+#!/usr/bin/env bash
+
+basedir="$(cd "$(dirname "$0")/.." && pwd)"
+# shellcheck source=../lib/tmux.bash
+. "$basedir/lib/tmux.bash"
+
+find_projects() {
+	local -a base_dirs rooters rooter_opts
+
+	IFS=',' read -ra base_dirs < <(get_tmux_option '@project-base-dirs')
+	IFS=',' read -ra rooters < <(get_tmux_option '@project-rooters' '.git')
+
+	for rooter in "${rooters[@]}"; do
+		rooter_opts+=("-o" "-name" "$rooter")
+	done
+	rooter_opts=('(' "${rooter_opts[@]:1}" ')')
+
+	for base_dir in "${base_dirs[@]}"; do
+		# If the base_dir is empty, skip it
+		if [[ -z "$base_dir" ]]; then
+			continue
+		fi
+
+		local -a tmp
+		IFS=':' read -ra tmp <<<"$base_dir"
+		path="${tmp[0]}"
+		min_depth="${tmp[1]:-0}"
+		max_depth="${tmp[2]:-${min_depth}}"
+
+		if [[ min_depth -eq 0 && max_depth -eq 0 ]]; then
+			# If min_depth and max_depth are both 0, that means we
+			# want to add the base_dir itself as a project.
+			# In that case, add the base_dir as a project even if it
+			# contains no rooter.
+			if [[ -d "$path" || -L "$path" ]]; then
+				echo "$path"
+			fi
+		else
+			find "$path" -mindepth "$((min_depth + 1))" \
+				-maxdepth "$((max_depth + 1))" \
+				"${rooter_opts[@]}" \
+				-printf '%h\n'
+		fi
+	done
+}
+
+# Convert a path to a session name. The session name is the last component of
+# the path. Dots are replaced with underscores. If the path starts with a dot,
+# the dot is removed.
+# e.g. /home/username/.emacs.d -> emacs_d
+to_session_name() {
+	local session_name="$1"
+
+	session_name="${session_name##*/}"
+
+	# Dots are not allowed in a tmux session name
+	# e.g. .emacs.d -> _emacs_d
+	session_name="${session_name//./_}"
+	# If the path starts with a slash (a dot), remove it
+	# e.g. .emacs.d -> _emacs_d -> emacs_d
+	session_name="${session_name#_}"
+
+	echo "$session_name"
+}
+
+main() {
+	local fzf_opts fzf_tmux_layout_opts selected_path session_name
+
+	# shellcheck disable=SC2207
+	fzf_opts="$(get_tmux_option "@project-fzf-opts" "--preview 'ls {}'")"
+	# shellcheck disable=SC2207
+	fzf_tmux_layout_opts="$(get_tmux_option "@project-fzf-tmux-layout-opts")"
+
+	selected_path="$(find_projects | eval "fzf-tmux ${fzf_tmux_layout_opts} -- ${fzf_opts}")"
+	if [[ -z "$selected_path" ]]; then
+		return 0
+	fi
+
+	# If the selected project has .tmuxinator.yml file, use tmuxinator to
+	# start the session.
+	if command -v tmuxinator &>/dev/null && [[ -f "${selected_path}/.tmuxinator.yml" ]]; then
+		tmuxinator start -p "${selected_path}/.tmuxinator.yml"
+		return 0
+	fi
+
+	session_name="$(to_session_name "$selected_path")"
+
+	# If the session already exists, attach to it. Otherwise, create a new
+	# session and attach to it.
+	if ! tmux has-session -t "$session_name" 2>/dev/null; then
+		# Return 0 even if creating the session fails.
+		tmux new-session -d -s "$session_name" -c "$selected_path" \; \
+			set -t "$session_name" destroy-unattached off || :
+	fi
+	tmux switch-client -t "$session_name"
+}
+
+main "$@"

dotfiles/common/.tmux/plugins/tmux-project/packages/default.nix

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+{ lib, tmuxPlugins }:
+
+tmuxPlugins.mkTmuxPlugin {
+  pluginName = "project";
+  version = "unstable-2023-05-04";
+  src = ../.;
+  meta = with lib; {
+    license = licenses.mit;
+    platforms = platforms.unix;
+  };
+}

dotfiles/common/.tmux/plugins/tmux-project/project.tmux

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+#!/usr/bin/env bash
+
+basedir="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=lib/tmux.bash
+. "${basedir}/lib/tmux.bash"
+
+key="$(get_tmux_option '@project-key' 'g')"
+if [[ -n "$key" ]]; then
+	tmux bind-key "$key" run-shell -b "${basedir}/libexec/switch-project.bash"
+fi