Add icholy-ttygif devcontainer feature

README.md

@@ -33,6 +33,7 @@
 | [fzf](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/fzf) | `fzf` — general-purpose command-line fuzzy finder | gh release | 1.0.0 |
 | [github.com-cli](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/github.com-cli) | `gh` — GitHub CLI | curl | 1.0.0 |
 | [helix-editor.com](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/helix-editor.com) | `hx` — modal text editor with built-in LSP | gh release | 1.0.0 |
+| [icholy/ttygif](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/icholy-ttygif) | `ttygif` — convert ttyrec recordings to animated GIFs | gh release | 1.0.0 |
 | [jj-vcs.dev](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/jj-vcs.dev) | `jj` — Git-compatible distributed VCS | gh release | 1.0.1 |
 | [jnsahaj/lumen](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/jnsahaj-lumen) | `lumen` — AI-powered commit message generator | cargo | 1.0.0 |
 | [joelhooks-agent-secrets](https://github.com/devcontainer-community/devcontainer-features/tree/main/src/joelhooks-agent-secrets) | `secrets` — manage secrets for AI agents | gh release | 1.0.0 |

src/icholy-ttygif/NOTES.md

@@ -0,0 +1,17 @@
+# icholy/ttygif
+
+## Project
+
+- [icholy/ttygif](https://github.com/icholy/ttygif)
+
+## Description
+
+`ttygif` converts a ttyrec terminal recording file into animated GIF files. It captures every frame of a terminal session recorded with `ttyrec` and assembles them into a GIF using ImageMagick.
+
+## Installation Method
+
+Built from source using the [GitHub release tarball](https://github.com/icholy/ttygif/releases) and installed to `/usr/local/bin` via `make install`. Build dependencies (`gcc`, `make`) and runtime dependencies (`imagemagick`, `ttyrec`, `x11-apps`) are installed via APT.
+
+## Other Notes
+
+Because `ttygif` uses `xwd` to capture X11 window screenshots at runtime, it requires a running X server (or virtual framebuffer such as `Xvfb`) when actually recording GIFs. The binary can be installed in a headless container but will need an X11 environment to function fully.

src/icholy-ttygif/devcontainer-feature.json

@@ -0,0 +1,17 @@
+{
+    "name": "icholy/ttygif",
+    "id": "icholy-ttygif",
+    "version": "1.0.0",
+    "description": "Install \"ttygif\" binary",
+    "documentationURL": "https://github.com/devcontainer-community/devcontainer-features/tree/main/src/icholy-ttygif",
+    "options": {
+        "version": {
+            "type": "string",
+            "default": "latest",
+            "proposals": [
+                "latest"
+            ],
+            "description": "Version of \"ttygif\" to install."
+        }
+    }
+}

src/icholy-ttygif/install.sh

@@ -0,0 +1,130 @@
+#!/bin/bash
+set -o errexit
+set -o pipefail
+set -o noclobber
+set -o nounset
+set -o allexport
+readonly githubRepository='icholy/ttygif'
+readonly binaryName='ttygif'
+readonly binaryTargetFolder='/usr/local/bin'
+readonly name="${githubRepository##*/}"
+apt_get_update() {
+    if [ "$(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/*
+}
+check_curl_tar_installed() {
+    declare -a requiredAptPackagesMissing=()
+    if ! [ -r '/etc/ssl/certs/ca-certificates.crt' ]; then
+        requiredAptPackagesMissing+=('ca-certificates')
+    fi
+    if ! command -v curl >/dev/null 2>&1; then
+        requiredAptPackagesMissing+=('curl')
+    fi
+    if ! command -v tar >/dev/null 2>&1; then
+        requiredAptPackagesMissing+=('tar')
+    fi
+    declare -i requiredAptPackagesMissingCount=${#requiredAptPackagesMissing[@]}
+    if [ $requiredAptPackagesMissingCount -gt 0 ]; then
+        apt_get_update
+        apt_get_checkinstall "${requiredAptPackagesMissing[@]}"
+        apt_get_cleanup
+    fi
+}
+curl_check_url() {
+    local url=$1
+    local status_code
+    status_code=$(curl -s -o /dev/null -w '%{http_code}' "$url")
+    if [ "$status_code" -ne 200 ] && [ "$status_code" -ne 302 ]; then
+        echo "Failed to download '$url'. Status code: $status_code."
+        return 1
+    fi
+}
+curl_download_stdout() {
+    local url=$1
+    curl \
+        --silent \
+        --location \
+        --output '-' \
+        --connect-timeout 5 \
+        "$url"
+}
+echo_banner() {
+    local text="$1"
+    echo -e "\e[1m\e[97m\e[41m$text\e[0m"
+}
+github_list_releases() {
+    if [ -z "$1" ]; then
+        echo "Usage: list_github_releases <owner/repo>"
+        return 1
+    fi
+    local repo="$1"
+    local url="https://api.github.com/repos/$repo/releases"
+    curl -s "$url" | grep -Po '"tag_name": "\K.*?(?=")' | grep -E '^v?[0-9]+\.[0-9]+\.[0-9]+$' | sed 's/^v//'
+}
+github_get_latest_release() {
+    if [ -z "$1" ]; then
+        echo "Usage: get_latest_github_release <owner/repo>"
+        return 1
+    fi
+    github_list_releases "$1" | head -n 1
+}
+github_get_tag_for_version() {
+    if [ -z "$1" ] || [ -z "$2" ]; then
+        echo "Usage: github_get_tag_for_version <owner/repo> <version>"
+        return 1
+    fi
+    local repo="$1"
+    local version="$2"
+    local url="https://api.github.com/repos/$repo/releases"
+    local escaped_version
+    escaped_version="$(printf '%s' "$version" | sed 's/\./\\./g')"
+    curl -s "$url" | grep -Po '"tag_name": "\K.*?(?=")' | grep -E "^v?${escaped_version}$" | head -n 1
+}
+utils_check_version() {
+    local version=$1
+    if ! [[ "${version:-}" =~ ^(latest|[0-9]+\.[0-9]+\.[0-9]+)$ ]]; then
+        printf >&2 '=== [ERROR] Option "version" (value: "%s") is not "latest" or valid semantic version format "X.Y.Z" !\n' \
+            "$version"
+        exit 1
+    fi
+}
+install() {
+    utils_check_version "$VERSION"
+    check_curl_tar_installed
+    apt_get_checkinstall build-essential imagemagick ttyrec x11-apps
+    if [ "$VERSION" == 'latest' ] || [ -z "$VERSION" ]; then
+        VERSION=$(github_get_latest_release "$githubRepository")
+    fi
+    readonly version="${VERSION:?}"
+    readonly releaseTag="$(github_get_tag_for_version "$githubRepository" "$version")"
+    if [ -z "$releaseTag" ]; then
+        printf >&2 '=== [ERROR] Could not find release tag for version "%s" in "%s"!\n' "$version" "$githubRepository"
+        exit 1
+    fi
+    readonly downloadUrl="https://github.com/${githubRepository}/archive/refs/tags/${releaseTag}.tar.gz"
+    curl_check_url "$downloadUrl"
+    local tmpDir
+    tmpDir=$(mktemp -d)
+    curl_download_stdout "$downloadUrl" | tar -xz -f '-' -C "$tmpDir"
+    local srcDir
+    srcDir=$(find "$tmpDir" -maxdepth 1 -type d -name "${name}-*" | head -1)
+    (cd "$srcDir" && make && make install PREFIX=/usr/local)
+    rm -rf "$tmpDir"
+    apt_get_cleanup
+}
+echo_banner "devcontainer.community"
+echo "Installing $name..."
+install "$@"
+echo "(*) Done!"

test/icholy-ttygif/test.sh

@@ -0,0 +1,20 @@
+#!/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 "WINDOWID=1 ttygif --version | grep -E '[0-9]+\.[0-9]+\.[0-9]+'"
+# Note: WINDOWID=1 is set because ttygif requires an X11 WINDOWID env var at startup,
+# even for --version. Setting it to a dummy value allows version checking in headless containers.
+
+# Report results
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults