Files
mtgc/scripts/android-env.fish
Garrett Mills 17c927afa3 Add a fish version of the Android env helper
Only the env helper needs a per-shell variant, since it has to mutate the
calling shell; android-setup.sh is executed rather than sourced and already
works from fish.

The fish version finds NDK/JDK candidates via `find` rather than globs because
fish raises an error on a wildcard matching nothing, and "SDK with no ndk/
directory yet" is a normal state the helper has to report cleanly.

Also switch the bash helper's NDK selection to `find | sort -V` so the two
agree: glob order is lexicographic, which would rank 9.x above 10.x. Verified
both pick the same NDK and JDK on this machine and against a fixture with
9.0.111 / 10.0.222 / 28.2.333 / 30.0.999-beta2 installed.
2026-08-02 13:22:36 -05:00

90 lines
3.2 KiB
Fish
Executable File

#!/usr/bin/env fish
#
# android-env.fish — export the environment the Android build needs (fish shell).
#
# SOURCE this, don't execute it:
#
# source scripts/android-env.fish
# cargo tauri android dev --open
#
# bash/zsh users want scripts/android-env.sh instead — only the *env* script is
# shell-specific, since it has to mutate the calling shell. ./scripts/android-setup.sh
# is executed rather than sourced, so it already works from any shell.
#
# Everything is auto-detected, so there are no machine-specific paths to keep in
# sync. Run ./scripts/android-setup.sh first to install the pieces.
function _mtgc_android_env
# --- SDK ---
set -l sdk $HOME/Android/Sdk
if set -q ANDROID_HOME; and test -n "$ANDROID_HOME"
set sdk $ANDROID_HOME
end
if not test -d $sdk
echo "android-env: no Android SDK at $sdk (run ./scripts/android-setup.sh)" >&2
return 1
end
# --- NDK: newest *stable* installed (skip beta/rc/canary) ---
# `find` rather than a glob: fish raises an error on a wildcard that matches
# nothing, and an SDK with no ndk/ directory at all is a normal state here.
# `sort -V` so 9.x doesn't outrank 10.x the way plain lexicographic would.
set -l ndk ""
for d in (find $sdk/ndk -mindepth 1 -maxdepth 1 -type d 2>/dev/null | sort -V)
set -l rev (sed -n 's/^Pkg.Revision *= *//p' $d/source.properties 2>/dev/null)
switch "$rev"
case '*beta*' '*rc*' '*canary*'
continue
end
set ndk $d
end
if test -z "$ndk"
echo "android-env: no stable NDK under $sdk/ndk (run ./scripts/android-setup.sh)" >&2
return 1
end
# --- JDK: Gradle/AGP reject very new JDKs; prefer Studio's bundled JBR 21 ---
# Ordered by preference; globbed locations go through `find` for the same
# unmatched-wildcard reason as above.
set -l studio $HOME/.local/share/JetBrains/Toolbox/apps/android-studio
set -l candidates \
$studio/jbr \
(find $studio -mindepth 2 -maxdepth 2 -type d -name jbr 2>/dev/null | sort -V) \
$HOME/android-studio/jbr \
/opt/android-studio/jbr \
(find /usr/lib/jvm -maxdepth 1 -name 'java-21-openjdk*' 2>/dev/null | sort -V) \
(find /usr/lib/jvm -maxdepth 1 -name 'java-17-openjdk*' 2>/dev/null | sort -V)
set -l jdk ""
for d in $candidates
# Test for javac specifically: a JRE-only or leftover-empty directory
# under /usr/lib/jvm must not count.
if test -x $d/bin/javac
set jdk $d
break
end
end
if test -z "$jdk"
echo "android-env: no JDK 21/17 found (Gradle rejects the system default)" >&2
return 1
end
set -gx ANDROID_HOME $sdk
set -gx NDK_HOME $ndk
set -gx JAVA_HOME $jdk
# adb/emulator live here; harmless if already present.
if not contains $sdk/platform-tools $PATH
set -gx PATH $sdk/platform-tools $PATH
end
echo "ANDROID_HOME=$ANDROID_HOME"
echo "NDK_HOME=$NDK_HOME"
echo "JAVA_HOME=$JAVA_HOME"
end
_mtgc_android_env
set -l _mtgc_ok $status
functions -e _mtgc_android_env
# Leave the sourced file's exit status reflecting whether detection succeeded.
test $_mtgc_ok -eq 0