Add taskwarrior.org feature (#179)

* Initial plan

* Add taskwarrior.org feature

Co-authored-by: sebst <592313+sebst@users.noreply.github.com>
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* Fix test: task --version outputs just the version number, not 'task x.y.z'

Co-authored-by: sebst <592313+sebst@users.noreply.github.com>
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---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: sebst <592313+sebst@users.noreply.github.com>

Author: Copilot

README.md

@@ -62,6 +62,7 @@
 | [starship.rs](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/starship.rs) | `starship` — minimal, fast cross-shell prompt | gh release | 1.0.1 |
 | [swc.rs](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/swc.rs) | `swc` — ultra-fast JS/TS compiler | gh release | 1.0.0 |
 | [tailscale.com](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/tailscale.com) | `tailscale` — zero-config mesh VPN | curl | 1.0.0 |
+| [taskwarrior.org](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/taskwarrior.org) | `task` — command-line task manager | apt | 1.0.0 |
 | [webinstall.dev](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/webinstall.dev) | `webi` — install packages without sudo | curl | 1.0.1 |
 | [yakitrak/notesmd-cli](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/yakitrak-notesmd-cli) | `notesmd-cli` — manage Obsidian vaults from the terminal | gh release | 1.0.0 |
 | [yq](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/yq) | `yq` — command-line YAML/JSON/XML processor | gh release | 1.0.0 |

src/taskwarrior.org/NOTES.md

@@ -0,0 +1,17 @@
+# taskwarrior.org
+
+## Project
+
+- [taskwarrior](https://taskwarrior.org)
+
+## Description
+
+Command-line task management tool with filtering and reporting capabilities.
+
+## Installation Method
+
+Installed via the system APT package manager (`apt-get install taskwarrior`).
+
+## Other Notes
+
+_No additional notes._

src/taskwarrior.org/devcontainer-feature.json

@@ -0,0 +1,17 @@
+{
+    "name": "taskwarrior.org",
+    "id": "taskwarrior.org",
+    "version": "1.0.0",
+    "description": "Install \"task\" binary",
+    "documentationURL": "https://github.com/devcontainer-community/devcontainer-features/tree/main/src/taskwarrior.org",
+    "options": {
+        "version": {
+            "type": "string",
+            "default": "latest",
+            "proposals": [
+                "latest"
+            ],
+            "description": "Currently unused. taskwarrior is installed via the system package manager."
+        }
+    }
+}

src/taskwarrior.org/install.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+set -o errexit
+set -o pipefail
+set -o noclobber
+set -o nounset
+set -o allexport
+readonly name="taskwarrior"
+apt_get_update() {
+    if [ "$(find /var/lib/apt/lists/* | wc -l)" = "0" ]; then
+        echo "Running apt-get update..."
+        apt-get update -y
+    fi
+}
+apt_get_checkinstall() {
+    if ! dpkg -s "$@" >/dev/null 2>&1; then
+        apt_get_update
+        DEBIAN_FRONTEND=noninteractive apt-get -y install --no-install-recommends --no-install-suggests --option 'Debug::pkgProblemResolver=true' --option 'Debug::pkgAcquire::Worker=1' "$@"
+    fi
+}
+apt_get_cleanup() {
+    apt-get clean
+    rm -rf /var/lib/apt/lists/*
+}
+echo_banner() {
+    local text="$1"
+    echo -e "\e[1m\e[97m\e[41m$text\e[0m"
+}
+install() {
+    apt_get_checkinstall taskwarrior
+    apt_get_cleanup
+}
+echo_banner "devcontainer.community"
+echo "Installing $name..."
+install "$@"
+echo "(*) Done!"

test/taskwarrior.org/test.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+
+set -e
+
+# Optional: Import test library bundled with the devcontainer CLI
+# See https://github.com/devcontainers/cli/blob/HEAD/docs/features/test.md#dev-container-features-test-lib
+# Provides the 'check' and 'reportResults' commands.
+source dev-container-features-test-lib
+
+# Feature-specific tests
+# The 'check' command comes from the dev-container-features-test-lib. Syntax is...
+# check <LABEL> <cmd> [args...]
+check "execute command" bash -c "task --version | grep -E '[0-9]+\.[0-9]+'"
+
+# Report results
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults