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User description

What does this PR do?

Adds opencode-android-arm64 build target for Termux users. Since Bun lacks native Android support, the build uses bun-linux-arm64 target (glibc binary). Users may need proot-distro for full compatibility due to Android's bionic libc and PIE requirements.

Build system (packages/opencode/script/build.ts):

• Added android?: boolean flag to target configuration
• New target compiles as bun-linux-arm64, packages as opencode-android-arm64.tar.gz

Install script (install):

• Detects Android via /system/app and /system/priv-app directories
• Added android-arm64 to supported platforms
• Skips musl/baseline variants (not applicable to Android)

Documentation (README.md, CONTRIBUTING.md):

• Added Termux installation instructions
• Noted proot-distro requirement for optimal compatibility

How did you verify your code works?

• Unit tests for build target logic (verifies android flag correctly maps to bun-linux-arm64)
• Shell tests for install script logic (platform detection, archive format, target naming)
• CodeQL security scan: no issues
• CI will produce the binary on next release

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Original prompt

Opracuj wersję "opencode-android-arm64"

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PR Type

Enhancement

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Description

• Add Android ARM64 platform support via opencode-android-arm64 build target

• Implement Android detection in install script using system directories

• Configure build system to use Linux ARM64 binary for Android compilation

• Add Termux installation instructions and platform documentation

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File Walkthrough

	Relevant files
Enhancement	build.ts Add Android ARM64 build target configuration                          packages/opencode/script/build.ts Added android?: boolean flag to target configuration New Android ARM64 target that compiles using bun-linux-arm64 binary Updated naming logic to output opencode-android-arm64 package name Conditional build target selection based on Android flag +11/-2    install Implement Android detection and installation logic              install Detect Android environment via /system/app and /system/priv-app directories Added android-arm64 to supported platform combinations Skip musl and baseline variants for Android (not applicable) Use .tar.gz archive format for Android like Linux Added helpful error message for unsupported Android architectures +29/-10
Documentation	README.md Add Android/Termux installation documentation                        README.md Added new "Android/Termux" installation section Provided curl-based installation command for Termux users Documented proot-distro requirement for full compatibility Noted limitations due to Android's security model +12/-0    CONTRIBUTING.md Update platform examples with Android support                        CONTRIBUTING.md Updated platform examples to include android-arm64 Clarified supported platforms for local development +1/-1

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[github-actions]

Hey! Your PR title Add Android ARM64 platform support doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[qodo-code-review]

PR Compliance Guide 🔍

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Security Compliance
🟢	No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
Ticket Compliance
⚪	🎫 No ticket provided Create ticket/issue
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🏷️ - Compliance label

[qodo-code-review]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
General	Improve Android environment detection reliability Improve Android detection by checking for the TERMUX_VERSION environment variable, as checking for system directories is not always reliable. This provides a more robust way to identify a Termux session. install [82-86] # Check if running on Android (e.g., Termux) is_android=false -if [ -d /system/app ] && [ -d /system/priv-app ]; then +if [ -n "$TERMUX_VERSION" ]; then + is_android=true +elif [ -d /system/app ] && [ -d /system/priv-app ]; then is_android=true fi Apply / Chat Suggestion importance[1-10]: 6 __ Why: The suggestion correctly identifies a potential weakness in the Android detection logic and proposes a more reliable method by checking the TERMUX_VERSION environment variable, which is a standard practice for identifying Termux environments.	Low
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[Copilot]

Pull request overview

Adds an Android ARM64 distribution path so Termux users can install OpenCode via the standard installer, despite Bun lacking a native Android compile target (using the Linux ARM64 target as a substitute).

Changes:

• Added an android?: boolean flag and an opencode-android-arm64 target name in the build script, mapping Android builds to bun-linux-arm64.
• Updated the install script to detect Android/Termux, support android-arm64, and use .tar.gz for Android downloads.
• Updated docs to mention Android/Termux installation and the new android-arm64 platform string.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
packages/opencode/script/build.ts	Introduces an Android target name and maps its Bun compile target to bun-linux-arm64.
install	Detects Android and selects android-arm64 artifacts (tarball-based) while skipping baseline/musl variants.
README.md	Adds Termux install snippet and compatibility notes for Android.
CONTRIBUTING.md	Updates <platform> examples to include android-arm64.

Comments suppressed due to low confidence (1)

install:364

• The download_and_install function downloads a release artifact from a remote URL with curl and immediately extracts and installs it without any checksum, signature, or other integrity verification. If the GitHub release asset or the network path to it is compromised, an attacker could supply a malicious tar/zip that this script would transparently install, leading to arbitrary code execution under the installing user. Add strong integrity checks (for example, verifying a pinned hash or signature for $filename before extraction and installation) so that tampering with the remote artifact is detected and the install is aborted.

download_and_install() {
    print_message info "\n${MUTED}Installing ${NC}opencode ${MUTED}version: ${NC}$specific_version"
    local tmp_dir="${TMPDIR:-/tmp}/opencode_install_$$"
    mkdir -p "$tmp_dir"

    if [[ "$os" == "windows" ]] || ! [ -t 2 ] || ! download_with_progress "$url" "$tmp_dir/$filename"; then
        # Fallback to standard curl on Windows, non-TTY environments, or if custom progress fails
        curl -# -L -o "$tmp_dir/$filename" "$url"
    fi

    if [ "$os" = "linux" ] || [ "$os" = "android" ]; then
        tar -xzf "$tmp_dir/$filename" -C "$tmp_dir"
    else
        unzip -q "$tmp_dir/$filename" -d "$tmp_dir"
    fi

    mv "$tmp_dir/opencode" "$INSTALL_DIR"
    chmod 755 "${INSTALL_DIR}/opencode"
    rm -rf "$tmp_dir"

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[Copilot]

The new android naming (opencode-android-arm64) will no longer match the release packaging condition later in this script that tars only keys containing "linux". As a result, the Android artifact will be produced as a .zip, but the installer/docs expect opencode-android-arm64.tar.gz, which will break installs. Update the packaging logic to treat the Android target like Linux for archive format (or otherwise keep the artifact extension consistent with the installer).

[Copilot]

Adding the Android target as { os: "linux", arch: "arm64", android: true } means --single builds on a Linux ARM64 host will now match both the regular linux-arm64 target and this Android target (same os/arch/abi/avx2), which conflicts with the intent of producing a single native binary. Consider excluding android: true targets from the --single selection unless an explicit flag is provided, or treat Android as its own os value in the selection logic.

Suggested change

	os: "linux",
	os: "android",

[Copilot]

The installer treats os=android as a .tar.gz download and extracts it with tar -xzf. Currently, the build script will generate a .zip for opencode-android-arm64 unless the packaging logic is also updated (it only tars artifacts whose name contains "linux"). Ensure the build artifact extension matches this installer behavior, otherwise Android installs will fail at extraction time.

[Copilot]

This note recommends proot-distro with Alpine Linux, but the Android build is described as using the Linux ARM64 (glibc) binary. Alpine is musl-based, so the glibc binary likely won't run there without additional compatibility layers. Consider recommending a glibc-based proot distro (e.g., Debian/Ubuntu) or explicitly calling out the libc requirement.

Suggested change

> The Android build is based on the Linux ARM64 binary and may require proot-distro for full compatibility. Direct execution in Termux may have limitations due to Android's security model. For best results, consider using proot-distro with Alpine Linux.

> The Android build is based on the Linux ARM64 (glibc) binary and may require proot-distro for full compatibility. Direct execution in Termux may have limitations due to Android's security model. For best results, use proot-distro with a glibc-based Linux distribution (for example, Debian or Ubuntu). Musl-based distributions such as Alpine Linux are not supported without additional compatibility layers.