nixos: gen 45 @ lilac — 2026-09-18 08:18 26.05.20260814.02e0898 (Yarara) ----- refactoring nvim.nix and adding better java integration
This commit is contained in:
+102
-11
@@ -65,34 +65,126 @@ in
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custom_wvkbd
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(pkgs.writeShellScriptBin "jroot" ''
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d="$PWD"
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while [ "$d" != "/" ]; do
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if [ -f "$d/.classpath" ]; then printf '%s\n' "$d"; exit 0; fi
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d="$(dirname "$d")"
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done
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echo "jroot: no .classpath found at or above $PWD" >&2
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exit 1
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'')
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(pkgs.writeShellScriptBin "jbuild" ''
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set -euo pipefail
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# Assign first: `cd "$(jroot)"` would swallow a jroot failure, because
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# `cd ""` is a successful no-op and set -e never sees the error.
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ROOT="$(jroot)"
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cd "$ROOT"
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mkdir -p bin
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SOURCES="$(mktemp)"
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trap 'rm -f "$SOURCES"' EXIT
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find . -path ./bin -prune -o -name '.*' -prune -o -name '*.java' -print > "$SOURCES"
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if [ ! -s "$SOURCES" ]; then
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echo "jbuild: no .java files found under $ROOT" >&2
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exit 1
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fi
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# bin is deliberately NOT on the compile classpath: every source is passed
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# explicitly, so a stale .class from a deleted file would silently satisfy
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# references that ought to fail.
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javac -g --release 21 -encoding UTF-8 -d bin -cp "lib/*" @"$SOURCES"
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'')
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(pkgs.writeShellScriptBin "jclean" ''
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set -euo pipefail
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ROOT="$(jroot)"
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rm -rf "$ROOT/bin"
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echo "cleaned $ROOT/bin"
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'')
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(pkgs.writeShellScriptBin "jrun" ''
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set -euo pipefail
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if [ $# -lt 1 ]; then
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echo "usage: jrun <package.MainClass> [args...]" >&2
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exit 1
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fi
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ROOT="$(jroot)"
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jbuild
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cd "$ROOT"
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MAIN="$1"; shift
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exec java -cp "bin:lib/*" "$MAIN" "$@"
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'')
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(pkgs.writeShellScriptBin "jtest" ''
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set -euo pipefail
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# sort -V so 1.10.2 beats 1.9.0; plain tail -n1 sorts those the wrong way.
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JUNIT="$(ls -1 "$HOME"/dev/jars/junit-platform-console-standalone-*.jar 2>/dev/null | sort -V | tail -n1 || true)"
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if [ -z "$JUNIT" ]; then
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echo "jtest: no junit-platform-console-standalone jar in ~/dev/jars" >&2
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exit 1
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fi
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ROOT="$(jroot)"
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jbuild
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cd "$ROOT"
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if [ $# -eq 0 ]; then
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exec java -jar "$JUNIT" execute --class-path "bin:lib/*" --scan-class-path --details=tree
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fi
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ARGS=""
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for pkg in "$@"; do
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ARGS="$ARGS --select-package $pkg"
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done
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exec java -jar "$JUNIT" execute --class-path "bin:lib/*" $ARGS --details=tree
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'')
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(pkgs.writeShellScriptBin "fkill" ''
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if [ -z "$1" ]; then
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echo "Need the name of one application"
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echo "eg. fkill google-chrome"
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set -eu
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if [ $# -lt 1 ]; then
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echo "usage: fkill <process-name>" >&2
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echo "eg. fkill firefox" >&2
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exit 1
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fi
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PROGRAM=$1
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PROGRAM="$1"
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ps aux | grep $PROGRAM | awk '{print $2}' | xargs kill
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if ! pgrep -x -- "$PROGRAM" >/dev/null 2>&1; then
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echo "fkill: no process named '$PROGRAM'" >&2
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exit 1
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fi
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pgrep -a -x -- "$PROGRAM"
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printf 'Kill these? [y/N] '
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read -r reply
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case "$reply" in
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[yY]*) pkill -x -- "$PROGRAM" ;;
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*) echo "aborted" ;;
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esac
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'')
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(pkgs.writeShellScriptBin "find-open-port" ''
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if [ -z "$1" ]; then
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set -u
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if [ $# -lt 1 ]; then
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echo "Please provide an application name, project directory, or other identifier."
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echo " Usage: find-open-port $HOME/dev/some-project"
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echo ' Usage: find-open-port $HOME/dev/some-project'
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echo " Usage: find-open-port some-app"
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exit 1
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fi
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APP_NAME=$1
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REGISTRY_FILE=$HOME/.dotfiles/ports.registry
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APP_NAME="$1"
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REGISTRY_FILE="$HOME/.dotfiles/ports.registry"
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MIN_PORT=8000
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MAX_PORT=8999
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MAX_RETRIES=50
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mkdir -p "$(dirname "$REGISTRY_FILE")"
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if [ -f "$REGISTRY_FILE" ] && grep -q "^$APP_NAME : " "$REGISTRY_FILE"; then
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echo "Already registered:"
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grep "^$APP_NAME : " "$REGISTRY_FILE"
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exit 0
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fi
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echo "Searching for available port between $MIN_PORT and $MAX_PORT for $APP_NAME..."
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for ((i=1; i<=MAX_RETRIES; i++)); do
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@@ -163,4 +255,3 @@ in
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home.stateVersion = "26.05"; # DO NOT CHANGE
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}
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+76
-26
@@ -1,5 +1,8 @@
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{ config, pkgs, ... }:
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let
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javaDebug = pkgs.vscode-extensions.vscjava.vscode-java-debug;
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in
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{
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programs.neovim = {
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enable = true;
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@@ -27,9 +30,8 @@
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vim.opt.updatetime = 50
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vim.opt.foldmethod = "indent"
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vim.opt.foldlevel = 99
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vim.g.mapleader = " "
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vim.keymap.set("n", "<leader>", ":")
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vim.keymap.set("n", "<leader>w", "<cmd>w<CR>", { silent = true })
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vim.keymap.set("n", "<leader>q", "<cmd>q<CR>", { silent = true })
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vim.keymap.set("n", "<leader>wq", "<cmd>wq<CR>", { silent = true })
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@@ -67,7 +69,7 @@
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})
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require("lualine").setup({
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ons = { theme = "auto" },
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options = { theme = "auto" },
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})
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require("neocord").setup({
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@@ -86,7 +88,14 @@
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},
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})
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-- Java indentation must match Eclipse's formatter, not your 2-space default.
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-- Indent is left off deliberately: treesitter's Java indent fights the
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-- Eclipse-matching tab settings applied in the FileType autocmd below.
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require("nvim-treesitter.configs").setup({
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highlight = { enable = true },
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indent = { enable = false },
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})
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-- Java indentation must match Eclipse's formatter, not the 2-space default.
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vim.api.nvim_create_autocmd("FileType", {
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pattern = "java",
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callback = function()
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@@ -117,24 +126,41 @@
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local capabilities = require("cmp_nvim_lsp").default_capabilities()
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-- .project and .classpath come first so a repo containing several
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-- assignments resolves to the assignment, not the repo root.
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local root_markers = { ".project", ".classpath", "pom.xml", "build.gradle", ".git" }
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local bundles = vim.fn.glob(
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"${javaDebug}/share/vscode/extensions/vscjava.vscode-java-debug/server/com.microsoft.java.debug.plugin-*.jar",
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true, true)
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if #bundles == 0 then
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vim.notify("java-debug bundle not found - Java debugging disabled", vim.log.levels.WARN)
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end
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local java_home = os.getenv("JAVA_HOME")
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if not java_home then
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vim.notify("JAVA_HOME unset - jdtls will guess a runtime", vim.log.levels.WARN)
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end
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-- Eclipse metadata wins over build files, build files over .git, and the
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-- file's own directory is the last resort so bare folders still attach.
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local function find_project_root()
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local setup = require("jdtls.setup")
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return setup.find_root({ ".project", ".classpath" })
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or setup.find_root({ "pom.xml", "build.gradle", "build.gradle.kts" })
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or setup.find_root({ ".git" })
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or vim.fn.expand("%:p:h")
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end
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local dap_configured = false
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local function start_jdtls()
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local jdtls = require("jdtls")
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local root_dir = require("jdtls.setup").find_root(root_markers)
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if not root_dir or root_dir == "" then return end
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local root_dir = find_project_root()
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local project_name = vim.fn.fnamemodify(root_dir, ":p:h:t")
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.. "-" .. vim.fn.sha256(root_dir):sub(1, 8)
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local workspace = vim.fn.stdpath("cache") .. "/jdtls-workspaces/" .. project_name
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local java_settings = {
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configuration = {
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updateBuildConfiguration = "interactive",
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runtimes = {
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{ name = "JavaSE-21", path = os.getenv("JAVA_HOME"), default = true },
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},
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updateBuildConfiguration = "automatic",
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},
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-- Keep a stray pom.xml from overriding the Eclipse project model.
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-- Flip these on if a course actually requires Maven or Gradle.
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@@ -142,10 +168,20 @@
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maven = { enabled = false },
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gradle = { enabled = false },
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},
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project = {
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outputPath = "bin",
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referencedLibraries = { "lib/**/*.jar" },
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},
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signatureHelp = { enabled = true },
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eclipse = { downloadSources = true },
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}
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if java_home then
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java_settings.configuration.runtimes = {
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{ name = "JavaSE-21", path = java_home, default = true },
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}
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end
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-- If the repo carries an exported Eclipse formatter profile, use it verbatim.
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local formatter = root_dir .. "/.settings/eclipse-formatter.xml"
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if vim.uv.fs_stat(formatter) then
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@@ -157,8 +193,14 @@
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root_dir = root_dir,
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capabilities = capabilities,
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settings = { java = java_settings },
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init_options = { bundles = {} },
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init_options = { bundles = bundles },
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on_attach = function(_, bufnr)
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require("jdtls").setup_dap({ hotcodereplace = "auto" })
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if not dap_configured then
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dap_configured = true
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require("jdtls.dap").setup_dap_main_class_configs()
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end
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local map = function(k, f) vim.keymap.set("n", k, f, { buffer = bufnr, silent = true }) end
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map("gd", vim.lsp.buf.definition)
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map("gr", vim.lsp.buf.references)
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@@ -176,15 +218,25 @@
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callback = start_jdtls,
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})
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require("neotest").setup({
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adapters = {
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require("neotest-java")({
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junit_jar = vim.uv.os_homedir() .. "/dev/jars/junit-*.jar",
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-- jvm_args = { "-Xmx512m" },
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incremental_build = true,
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}),
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},
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})
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local dap, dapui = require("dap"), require("dapui")
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dapui.setup()
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require("nvim-dap-virtual-text").setup()
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dap.listeners.after.event_initialized["dapui"] = function() dapui.open() end
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dap.listeners.before.event_terminated["dapui"] = function() dapui.close() end
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dap.listeners.before.event_exited["dapui"] = function() dapui.close() end
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vim.keymap.set("n", "<leader>db", dap.toggle_breakpoint)
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vim.keymap.set("n", "<leader>dB", function()
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dap.set_breakpoint(vim.fn.input("Condition: "))
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end)
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vim.keymap.set("n", "<leader>dc", dap.continue)
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vim.keymap.set("n", "<leader>dn", dap.step_over)
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vim.keymap.set("n", "<leader>di", dap.step_into)
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vim.keymap.set("n", "<leader>du", dap.step_out)
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vim.keymap.set("n", "<leader>dr", dap.repl.toggle)
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vim.keymap.set("n", "<leader>dq", dap.terminate)
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vim.keymap.set({ "n", "v" }, "<leader>de", function() dapui.eval() end)
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'';
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plugins = with pkgs.vimPlugins; [
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@@ -197,11 +249,9 @@
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{ plugin = gitsigns-nvim; }
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{ plugin = nvim-jdtls; }
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{ plugin = nvim-nio; }
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{ plugin = neotest; }
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{ plugin = neotest-java; }
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{ plugin = nvim-dap; }
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{ plugin = nvim-dap-ui; }
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{ plugin = nvim-nio; }
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{ plugin = nvim-dap-virtual-text; }
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{ plugin = nvim-cmp; }
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{ plugin = cmp-nvim-lsp; }
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