Upgrade csvu to Zig 0.16 (#2)

* Port source to Zig 0.16

* Declare Zig 0.16 toolchain

* ci: add pr verification

.gitattributes

@@ -0,0 +1,2 @@
+*.zig text eol=lf
+*.zig.zon text eol=lf

.github/workflows/ci.yaml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+permissions:
+  contents: read
+
+jobs:
+  verify:
+    name: Format, Test, Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Zig
+        uses: mlugg/setup-zig@v2
+        with:
+          version: 0.16.0
+
+      - name: Check formatting
+        run: zig fmt --check .
+
+      - name: Run tests
+        run: zig build test
+
+      - name: Build
+        run: zig build
+
+      - name: Build release mode
+        run: zig build -Doptimize=ReleaseSafe

.github/workflows/release.yaml

@@ -51,20 +51,19 @@ jobs:
       - name: Install Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.0
+          version: 0.16.0
 
       - name: Build for ${{ matrix.triple }}
         run: |
-          zig build-exe "${SRC}" \
+          zig build \
             -Dtarget=${{ matrix.triple }} \
-            -O ReleaseSafe \
+            -Doptimize=ReleaseSafe
-            -femit-bin="${BINARY_NAME}${{ matrix.ext }}"
 
       - name: Package binary
         run: |
           mkdir -p artifacts
           zip -j artifacts/"${BINARY_NAME}-${{ github.ref_name }}-${{ matrix.triple }}.zip" \
-            "${BINARY_NAME}${{ matrix.ext }}"
+            "zig-out/bin/${BINARY_NAME}${{ matrix.ext }}"
 
       - name: Upload release asset
         uses: actions/upload-release-asset@v1

README.md

@@ -86,7 +86,7 @@ The csvu is a dynamic CSV utility designed to streamline data handling. It effec
 Before getting started with csvu, ensure your runtime environment meets the following requirements:
 
 - **Programming Language:** Zig
-- **Zig Version:** 0.14.0 or later
+- **Zig Version:** 0.16.0 or later
 
 ### Installation
 

build.zig

@@ -73,6 +73,16 @@ pub fn build(b: *std.Build) void {
 
     const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);
 
+    const csv_unit_tests = b.addTest(.{
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/csv.zig"),
+            .target = target,
+            .optimize = optimize,
+        }),
+    });
+
+    const run_csv_unit_tests = b.addRunArtifact(csv_unit_tests);
+
     const exe_unit_tests = b.addTest(.{
         .root_module = b.createModule(.{
             .root_source_file = b.path("src/main.zig"),
@@ -88,5 +98,6 @@ pub fn build(b: *std.Build) void {
     // running the unit tests.
     const test_step = b.step("test", "Run unit tests");
     test_step.dependOn(&run_lib_unit_tests.step);
+    test_step.dependOn(&run_csv_unit_tests.step);
     test_step.dependOn(&run_exe_unit_tests.step);
 }

build.zig.zon

@@ -17,7 +17,7 @@
     // This field is optional.
     // This is currently advisory only; Zig does not yet do anything
     // with this value.
-    //.minimum_zig_version = "0.11.0",
+    .minimum_zig_version = "0.16.0",
 
     // This field is optional.
     // Each dependency must either provide a `url` and `hash`, or a `path`.

src/csv.zig

@@ -1,5 +1,4 @@
 const std = @import("std");
-const term = @import("term.zig");
 
 const CsvError = error{
     NoDelimiterFound,
@@ -16,7 +15,7 @@ fn contains(arr: []const u8, target: u8) bool {
 }
 
 pub fn determineDelimiter(str: []const u8) !u8 {
-    var allocator = std.heap.GeneralPurposeAllocator(.{}){};
+    var allocator = std.heap.DebugAllocator(.{}){};
     defer _ = allocator.deinit();
     const alloc = allocator.allocator();
 
@@ -88,22 +87,21 @@ const CsvFile = struct {
     }
 };
 
-pub fn printTable(file: CsvFile) !void {
+pub fn printTable(io: std.Io, file: CsvFile) !void {
     var stdout_buf: [1024]u8 = undefined;
-    var stdout_writer = std.fs.File.stdout().writer(&stdout_buf);
+    var stdout_writer = std.Io.File.stdout().writerStreaming(io, &stdout_buf);
     var stdout = &stdout_writer.interface;
 
     defer {
         _ = stdout.flush() catch null;
     }
 
-    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    var gpa = std.heap.DebugAllocator(.{}){};
     defer {
         _ = gpa.deinit();
     }
 
     const alloc = gpa.allocator();
-    const dimensions = try term.getTerminalDimensions();
     const col_nums = file.header.items.len;
     const col_sizes = try alloc.alloc(usize, col_nums);
     defer alloc.free(col_sizes);
@@ -120,8 +118,6 @@ pub fn printTable(file: CsvFile) !void {
         }
     }
 
-    _ = dimensions;
-
     var complete_length = col_nums + 1;
     for (col_sizes) |col_size| {
         complete_length += col_size;
@@ -152,7 +148,7 @@ pub fn printTable(file: CsvFile) !void {
     try stdout.print("\n", .{});
 
     for (file.entries.items) |entry| {
-        var out_line = std.ArrayList(u8){};
+        var out_line: std.ArrayList(u8) = .empty;
         defer out_line.deinit(alloc);
 
         try out_line.appendSlice(alloc, "|");
@@ -178,36 +174,35 @@ pub fn printTable(file: CsvFile) !void {
     try stdout.print("\n", .{});
 }
 
-pub fn loadFile(filepath: []const u8, alloc: std.mem.Allocator) !CsvFile {
+pub fn loadFile(io: std.Io, filepath: []const u8, alloc: std.mem.Allocator) !CsvFile {
     var file_buf: [4096]u8 = undefined;
 
-    var file = try std.fs.cwd().openFile(filepath, .{ .mode = .read_write });
+    var file = try std.Io.Dir.cwd().openFile(io, filepath, .{ .mode = .read_write });
-    defer file.close();
+    defer file.close(io);
-    var file_reader = file.reader(&file_buf);
+    var file_reader = file.readerStreaming(io, &file_buf);
     const in_stream = &file_reader.interface;
 
     var readHeader = false;
     var headerList: std.ArrayList([]const u8) = undefined;
-    var entries = std.ArrayList(std.ArrayList([]const u8)){};
+    var entries: std.ArrayList(std.ArrayList([]const u8)) = .empty;
-    var lines = std.ArrayList([]const u8){};
+    var lines: std.ArrayList([]const u8) = .empty;
 
     var delimiter: u8 = ' ';
 
     while (true) {
-        const line = in_stream.takeDelimiterExclusive('\n') catch |err| {
+        const line = in_stream.takeDelimiter('\n') catch |err| switch (err) {
-            if (err == error.EndOfStream) {
+            error.ReadFailed => return file_reader.err.?,
-                break;
+            else => return err,
-            }
-            return err;
         };
+        if (line == null) break;
 
         if (delimiter == ' ') {
-            delimiter = try determineDelimiter(line);
+            delimiter = try determineDelimiter(line.?);
         }
 
         const del = delimiter;
-        var entr = std.ArrayList([]const u8){};
+        var entr: std.ArrayList([]const u8) = .empty;
-        var splitIt = std.mem.splitSequence(u8, line, &[_]u8{del});
+        var splitIt = std.mem.splitSequence(u8, line.?, &[_]u8{del});
 
         while (splitIt.next()) |part| {
             const dest = try alloc.alloc(u8, part.len);
@@ -232,12 +227,13 @@ pub fn loadFile(filepath: []const u8, alloc: std.mem.Allocator) !CsvFile {
 
 test "Determine delimiter" {
     const del = try determineDelimiter("this,is,a,test");
-    std.testing.expect(del == ',');
+    try std.testing.expect(del == ',');
 
     const del2 = try determineDelimiter("th#is; is,a; test;     with,many;symbols");
-    std.testing.expect(del2 == ';');
+    try std.testing.expect(del2 == ';');
 
-    determineDelimiter("This does not have an delimiter") catch |err| {
+    try std.testing.expectError(
-        try std.testing.expect(err == CsvError.NoDelimiterFound);
+        CsvError.NoDelimiterFound,
-    };
+        determineDelimiter("This does not have an delimiter"),
+    );
 }

src/main.zig

@@ -1,16 +1,16 @@
 const std = @import("std");
 const csv = @import("csv.zig");
 
-pub fn main() !void {
+pub fn main(init: std.process.Init) !void {
     var stdout_buf: [1024]u8 = undefined;
-    var stdout_writer = std.fs.File.stdout().writer(&stdout_buf);
+    var stdout_writer = std.Io.File.stdout().writerStreaming(init.io, &stdout_buf);
     var stdout = &stdout_writer.interface;
 
-    var allocator = std.heap.GeneralPurposeAllocator(.{}){};
+    var allocator = std.heap.DebugAllocator(.{}){};
     defer _ = allocator.deinit();
     const alloc = allocator.allocator();
 
-    var args = try std.process.ArgIterator.initWithAllocator(alloc);
+    var args = try init.minimal.args.iterateAllocator(alloc);
     defer args.deinit();
 
     _ = args.next();
@@ -27,7 +27,7 @@ pub fn main() !void {
         return;
     }
 
-    var file = try csv.loadFile(filepath, alloc);
+    var file = try csv.loadFile(init.io, filepath, alloc);
     defer file.deinit();
 
     const valid = file.isValid();
@@ -35,6 +35,6 @@ pub fn main() !void {
 
     _ = try stdout.flush();
 
-    try csv.printTable(file);
+    try csv.printTable(init.io, file);
     _ = try stdout.flush();
 }