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Commit 3a45e81

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chrischtelchrischtel
committedNov 14, 2024
portet old version, improved API and overall organization
·
v0.3.0v0.1.0-alpha.1
0 parents  commit 3a45e81

12 files changed

+4580
-0
lines changed
 

‎.gitignore

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.zig-cache/
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zig-out/
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/test_data
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*.exe
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*.pdb
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*.obj
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*.exp
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*.lib
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/target
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*.fit
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*.fits

‎build.zig

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const std = @import("std");
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const this = @This();
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fn getModule(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) *std.Build.Module {
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if (b.modules.contains("zfitsio")) {
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return b.modules.get("zfitsio").?;
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}
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return b.addModule("zfitsio", .{
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.root_source_file = b.path("src/root.zig"),
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.target = target,
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.optimize = optimize,
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});
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}
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pub fn build(b: *std.Build) !void {
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const target = b.standardTargetOptions(.{});
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const optimize = b.standardOptimizeOption(.{});
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const use_system_libs = b.option(bool, "use-system-libs", "Use system-installed libraries instead of building from source") orelse false;
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const zlib_lib = if (!use_system_libs)
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createZlib(b, target, optimize) orelse unreachable
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else
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null;
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const cfitsio_lib = if (!use_system_libs) blk: {
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const lib = createCfitsio(b, target, optimize) orelse unreachable;
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if (zlib_lib) |zl| lib.linkLibrary(zl);
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break :blk lib;
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} else null;
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const zfitsio_lib = b.addStaticLibrary(.{
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.name = "zfitsio",
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.root_source_file = b.path("src/root.zig"),
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.target = target,
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.optimize = optimize,
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});
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if (cfitsio_lib) |cfits| {
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zfitsio_lib.linkLibrary(cfits);
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if (zlib_lib) |zl| zfitsio_lib.linkLibrary(zl);
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} else {
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zfitsio_lib.linkSystemLibrary("cfitsio");
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zfitsio_lib.linkSystemLibrary("z");
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}
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b.installArtifact(zfitsio_lib);
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const zfitsio = this.getModule(b, target, optimize);
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const fitsfile_tests = b.addTest(.{
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.root_source_file = b.path("src/fitsfile.zig"),
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.target = target,
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.optimize = optimize,
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});
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fitsfile_tests.linkLibC(); // Add this
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const wrapper = b.addModule("wrapper", .{
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.root_source_file = b.path("src/wrapper.zig"),
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});
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fitsfile_tests.root_module.addImport("wrapper", wrapper);
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if (cfitsio_lib) |lib| {
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fitsfile_tests.linkLibrary(lib);
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if (zlib_lib) |zl| fitsfile_tests.linkLibrary(zl);
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} else {
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fitsfile_tests.linkSystemLibrary("cfitsio");
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fitsfile_tests.linkSystemLibrary("z");
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}
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const run_fitsfile_tests = b.addRunArtifact(fitsfile_tests);
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const test_step = b.step("test", "Run unit tests");
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test_step.dependOn(&run_fitsfile_tests.step);
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const examples = [_]struct {
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name: []const u8,
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path: []const u8,
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}{
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.{ .name = "read_fits", .path = "examples/read_fits.zig" },
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.{ .name = "write_fits", .path = "examples/write_fits.zig" },
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.{ .name = "modify_header", .path = "examples/modify_header.zig" },
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.{ .name = "basic_fits", .path = "examples/basic_fits.zig" },
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};
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const examples_step = b.step("examples", "Build examples");
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for (examples) |ex| {
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const exe = b.addExecutable(.{
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.name = ex.name,
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.root_source_file = b.path(ex.path),
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.target = target,
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.optimize = optimize,
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});
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exe.linkLibC();
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if (cfitsio_lib) |lib| {
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exe.linkLibrary(lib);
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if (zlib_lib) |zl| exe.linkLibrary(zl);
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} else {
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exe.linkSystemLibrary("cfitsio");
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exe.linkSystemLibrary("z");
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}
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exe.root_module.addImport("zfitsio", zfitsio);
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examples_step.dependOn(&exe.step);
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const run_cmd = b.addRunArtifact(exe);
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const run_step = b.step(ex.name, b.fmt("Run the {s} example", .{ex.name}));
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run_step.dependOn(&run_cmd.step);
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}
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}
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pub fn createZlib(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) ?*std.Build.Step.Compile {
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const lib = b.addStaticLibrary(.{
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.name = "zlib",
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.target = target,
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.optimize = optimize,
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.link_libc = true,
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});
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const zlib_dep = b.lazyDependency("zlib", .{
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.target = target,
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.optimize = optimize,
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}) orelse return null;
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const srcs = &.{
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"adler32.c",
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"compress.c",
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"crc32.c",
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"deflate.c",
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"gzclose.c",
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"gzlib.c",
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"gzread.c",
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"gzwrite.c",
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"inflate.c",
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"infback.c",
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"inftrees.c",
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"inffast.c",
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"trees.c",
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"uncompr.c",
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"zutil.c",
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};
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inline for (srcs) |src| {
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lib.addCSourceFile(.{
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.file = zlib_dep.path(src),
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.flags = &.{"-std=c89"},
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});
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}
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lib.installHeader(zlib_dep.path("zlib.h"), "zlib.h");
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lib.installHeader(zlib_dep.path("zconf.h"), "zconf.h");
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return lib;
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}
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pub fn createCfitsio(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) ?*std.Build.Step.Compile {
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const lib = b.addStaticLibrary(.{
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.name = "cfitsio",
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.target = target,
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.optimize = optimize,
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.link_libc = true,
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});
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const cfitsio_dep = b.lazyDependency("cfitsio", .{
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.target = target,
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.optimize = optimize,
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}) orelse return null;
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const srcs = &.{
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"buffers.c",
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"cfileio.c",
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"checksum.c",
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"drvrfile.c",
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"drvrmem.c",
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"drvrnet.c",
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"drvrsmem.c",
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"editcol.c",
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"edithdu.c",
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"fitscore.c",
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"fits_hcompress.c",
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"fits_hdecompress.c",
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"getcol.c",
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"getcolb.c",
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"getcold.c",
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"getcole.c",
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"getcoli.c",
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"getcolj.c",
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"getcolk.c",
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"getcoll.c",
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"getcolsb.c",
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"getcols.c",
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"getcolui.c",
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"getcoluj.c",
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"getcoluk.c",
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"getkey.c",
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"group.c",
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"grparser.c",
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"histo.c",
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"imcompress.c",
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"iraffits.c",
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"modkey.c",
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"pliocomp.c",
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"putcol.c",
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"putcolb.c",
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"putcold.c",
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"putcole.c",
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"putcoli.c",
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"putcolj.c",
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"putcolk.c",
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"putcoll.c",
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"putcolsb.c",
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"putcols.c",
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"putcolu.c",
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"putcolui.c",
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"putcoluj.c",
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"putcoluk.c",
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"putkey.c",
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"quantize.c",
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"region.c",
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"ricecomp.c",
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"scalnull.c",
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"simplerng.c",
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"swapproc.c",
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"wcssub.c",
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"wcsutil.c",
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"zcompress.c",
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"zuncompress.c",
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"eval_f.c",
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"eval_y.c",
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"eval_l.c",
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};
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inline for (srcs) |s| {
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lib.addCSourceFile(.{
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.file = cfitsio_dep.path(s),
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.flags = &.{ "-std=c11", "-D_POSIX_C_SOURCE=200809L" },
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});
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}
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lib.installHeader(cfitsio_dep.path("fitsio.h"), "fitsio.h");
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lib.installHeader(cfitsio_dep.path("longnam.h"), "longnam.h");
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return lib;
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}

‎build.zig.zon

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.{
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// This is the default name used by packages depending on this one. For
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// example, when a user runs `zig fetch --save <url>`, this field is used
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// as the key in the `dependencies` table. Although the user can choose a
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// different name, most users will stick with this provided value.
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//
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// It is redundant to include "zig" in this name because it is already
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// within the Zig package namespace.
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.name = "zfitsio",
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// This is a [Semantic Version](https://semver.org/).
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// In a future version of Zig it will be used for package deduplication.
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.version = "0.0.0",
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// This field is optional.
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// This is currently advisory only; Zig does not yet do anything
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// with this value.
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//.minimum_zig_version = "0.11.0",
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// This field is optional.
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// Each dependency must either provide a `url` and `hash`, or a `path`.
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// `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
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// Once all dependencies are fetched, `zig build` no longer requires
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// internet connectivity.
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.dependencies = .{
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.cfitsio = .{
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.url = "https://github.com/HEASARC/cfitsio/archive/refs/tags/cfitsio4_5_0_20240826.tar.gz",
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.hash = "12206640d8d65740b10111f5febda8478caf055f19480c4b590211102f40f5ab3d86",
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},
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.zlib = .{
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.url = "https://github.com/madler/zlib/releases/download/v1.3.1/zlib-1.3.1.tar.gz",
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.hash = "1220c1854d7b4c2b5cbdd8ce6593c37e4bf1ac4032664735e1537c3848becb3b5834",
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},
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},
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.paths = .{
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"build.zig",
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"build.zig.zon",
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"src",
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// For example...
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//"LICENSE",
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//"README.md",
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},
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}

‎examples/basic_fits.zig

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const std = @import("std");
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const fits = @import("zfitsio");
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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var fits_file = try fits.openFits(allocator, "examples/data/sample.fit", fits.Mode.READ_ONLY);
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defer fits_file.close() catch |err| {
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std.debug.print("Error closing file: {}\n", .{err});
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};
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const dimensions = try fits_file.getImageDimensions();
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std.debug.print("Image dimensions: {d}x{d}\n", .{ dimensions[0], dimensions[1] });
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}

‎examples/modify_header.zig

Whitespace-only changes.

‎examples/read_fits.zig

Whitespace-only changes.

‎examples/write_fits.zig

Whitespace-only changes.

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