This commit is contained in:
Jeffrey C. Ollie 2024-09-13 18:05:43 -05:00
commit 5491de12b5
Signed by: jeff
GPG key ID: 6F86035A6D97044E
8 changed files with 387 additions and 0 deletions

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/.zig-cache
/zig-out

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LICENSE Normal file
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Copyright © 2024 Jeffrey C. Ollie
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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README.md Normal file
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# notmuch.zig
Zig wrapper for the notmuchmail C API.

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build.zig Normal file
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const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const module = b.addModule("notmuch", .{
.root_source_file = b.path("src/notmuch.zig"),
.target = target,
.optimize = optimize,
.link_libc = true,
});
module.linkSystemLibrary("notmuch", .{});
const tests = b.addTest(.{
.root_source_file = b.path("src/notmuch.zig"),
.target = target,
.optimize = optimize,
});
tests.linkSystemLibrary2("notmuch", .{});
tests.linkLibC();
const run_tests = b.addRunArtifact(tests);
const test_step = b.step("test", "Run unit tests");
test_step.dependOn(&run_tests.step);
}

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.{
// This is the default name used by packages depending on this one. For
// example, when a user runs `zig fetch --save <url>`, this field is used
// as the key in the `dependencies` table. Although the user can choose a
// different name, most users will stick with this provided value.
//
// It is redundant to include "zig" in this name because it is already
// within the Zig package namespace.
.name = "notmuch.zig",
// This is a [Semantic Version](https://semver.org/).
// In a future version of Zig it will be used for package deduplication.
.version = "0.0.0",
// This field is optional.
// This is currently advisory only; Zig does not yet do anything
// with this value.
//.minimum_zig_version = "0.11.0",
// This field is optional.
// Each dependency must either provide a `url` and `hash`, or a `path`.
// `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
// Once all dependencies are fetched, `zig build` no longer requires
// internet connectivity.
.dependencies = .{
// See `zig fetch --save <url>` for a command-line interface for adding dependencies.
//.example = .{
// // When updating this field to a new URL, be sure to delete the corresponding
// // `hash`, otherwise you are communicating that you expect to find the old hash at
// // the new URL.
// .url = "https://example.com/foo.tar.gz",
//
// // This is computed from the file contents of the directory of files that is
// // obtained after fetching `url` and applying the inclusion rules given by
// // `paths`.
// //
// // This field is the source of truth; packages do not come from a `url`; they
// // come from a `hash`. `url` is just one of many possible mirrors for how to
// // obtain a package matching this `hash`.
// //
// // Uses the [multihash](https://multiformats.io/multihash/) format.
// .hash = "...",
//
// // When this is provided, the package is found in a directory relative to the
// // build root. In this case the package's hash is irrelevant and therefore not
// // computed. This field and `url` are mutually exclusive.
// .path = "foo",
// // When this is set to `true`, a package is declared to be lazily
// // fetched. This makes the dependency only get fetched if it is
// // actually used.
// .lazy = false,
//},
},
// Specifies the set of files and directories that are included in this package.
// Only files and directories listed here are included in the `hash` that
// is computed for this package. Only files listed here will remain on disk
// when using the zig package manager. As a rule of thumb, one should list
// files required for compilation plus any license(s).
// Paths are relative to the build root. Use the empty string (`""`) to refer to
// the build root itself.
// A directory listed here means that all files within, recursively, are included.
.paths = .{
"build.zig",
"build.zig.zon",
"src",
// For example...
//"LICENSE",
//"README.md",
},
}

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{
"nodes": {
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1710146030,
"narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1726062873,
"narHash": "sha256-IiA3jfbR7K/B5+9byVi9BZGWTD4VSbWe8VLpp9B/iYk=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "4f807e8940284ad7925ebd0a0993d2a1791acb2f",
"type": "github"
},
"original": {
"id": "nixpkgs",
"ref": "nixos-unstable",
"type": "indirect"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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{
inputs = {
nixpkgs = {
url = "nixpkgs/nixos-unstable";
};
flake-utils = {
url = "github:numtide/flake-utils";
};
};
outputs = {
nixpkgs,
flake-utils,
...
}:
flake-utils.lib.eachDefaultSystem (
system: let
pkgs = import nixpkgs {
inherit system;
};
in {
devShells.default = pkgs.mkShell {
nativeBuildInputs = [
pkgs.zig_0_13
pkgs.notmuch
];
};
}
);
}

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const std = @import("std");
const c = @cImport({
@cInclude("notmuch.h");
});
const log = std.log.scoped(.notmuch);
fn generateEnum(comptime prefix: []const u8) type {
@setEvalBranchQuota(9000);
const info = @typeInfo(c);
var count: usize = 0;
for (info.Struct.decls) |d| {
if (std.mem.eql(u8, "NOTMUCH_STATUS_LAST_STATUS", d.name)) continue;
if (std.mem.startsWith(u8, d.name, prefix)) {
count += 1;
}
}
var fields: [count]std.builtin.Type.EnumField = undefined;
var index: usize = 0;
var max: c.notmuch_status_t = 0;
for (info.Struct.decls) |d| {
if (std.mem.eql(u8, "NOTMUCH_STATUS_LAST_STATUS", d.name)) continue;
if (std.mem.startsWith(u8, d.name, prefix)) {
max = @max(max, @field(c, d.name));
fields[index] = .{
.name = d.name[prefix.len..],
.value = @field(c, d.name),
};
index += 1;
}
}
return @Type(.{ .Enum = .{
.tag_type = std.meta.Int(.unsigned, std.math.ceilPowerOfTwoAssert(u16, max)),
.fields = &fields,
.decls = &.{},
.is_exhaustive = true,
} });
}
pub const STATUS = generateEnum("NOTMUCH_STATUS_");
pub const DATABASE_MODE = generateEnum("NOTMUCH_DATABASE_MODE_");
const Error = error{
BadQuerySyntax,
ClosedDatabase,
DatabaseExists,
DuplicateMessageID,
FailedCryptoContextCreation,
FileError,
FileNotEmail,
Ignored,
IllegalArgument,
MaformedCryptoProtocol,
NoConfig,
NoDatabase,
NoMailRoot,
NotmuchVersion,
NullPointer,
OutOfMemory,
PathError,
ReadOnlyDatabase,
TagTooLong,
UnbalancedAtomic,
UnbalancedFreezeThaw,
UnknownCryptoProtocol,
UnsupportedOperation,
UpgradeRequired,
XapianException,
};
fn statusToError(comptime T: type, rc: c.notmuch_status_t, value: T) Error!T {
return switch (@as(STATUS, @enumFromInt(rc))) {
.SUCCESS => value,
.BAD_QUERY_SYNTAX => error.BadQuerySyntax,
.CLOSED_DATABASE => error.ClosedDatabase,
.DATABASE_EXISTS => error.DatabaseExists,
.DUPLICATE_MESSAGE_ID => error.DuplicateMessageID,
.FAILED_CRYPTO_CONTEXT_CREATION => error.FailedCryptoContextCreation,
.FILE_ERROR => error.FileError,
.FILE_NOT_EMAIL => error.FileNotEmail,
.IGNORED => error.Ignored,
.ILLEGAL_ARGUMENT => error.IllegalArgument,
.MALFORMED_CRYPTO_PROTOCOL => error.MaformedCryptoProtocol,
.NO_CONFIG => error.NoConfig,
.NO_DATABASE => error.NoDatabase,
.NO_MAIL_ROOT => error.NoMailRoot,
.NULL_POINTER => error.NullPointer,
.OUT_OF_MEMORY => error.OutOfMemory,
.PATH_ERROR => error.PathError,
.READ_ONLY_DATABASE => error.ReadOnlyDatabase,
.TAG_TOO_LONG => error.TagTooLong,
.UNBALANCED_ATOMIC => error.UnbalancedAtomic,
.UNBALANCED_FREEZE_THAW => error.UnbalancedFreezeThaw,
.UNKNOWN_CRYPTO_PROTOCOL => error.UnknownCryptoProtocol,
.UNSUPPORTED_OPERATION => error.UnsupportedOperation,
.UPGRADE_REQUIRED => error.UpgradeRequired,
.XAPIAN_EXCEPTION => error.XapianException,
};
}
pub const Database = struct {
database: ?*c.notmuch_database_t = null,
pub fn open_with_config(
database_path: ?[*:0]const u8,
mode: DATABASE_MODE,
config_path: ?[:0]const u8,
profile: ?[:0]const u8,
) Error!Database {
if (!c.LIBNOTMUCH_CHECK_VERSION(5, 6, 0)) {
log.err("need newer notmuch", .{});
return error.NotmuchVersion;
}
var database: ?*c.notmuch_database_t = null;
const rc = c.notmuch_database_open_with_config(
if (database_path) |p| p else null,
@intFromEnum(mode),
if (config_path) |p| p else null,
if (profile) |p| p else null,
&database,
null,
);
return try statusToError(Database, rc, .{ .database = database });
}
pub fn close(self: *const Database) void {
_ = c.notmuch_database_close(self.database);
}
pub fn index_file(self: *const Database, filename: [:0]const u8, indexopts: ?*c.notmuch_indexopts_t) Error!void {
const rc = c.notmuch_database_index_file(self.database, filename, indexopts, null);
return try statusToError(void, rc, {});
}
pub fn index_file_get_message(self: *const Database, filename: [:0]const u8, indexopts: ?*c.notmuch_indexopts_t) Error!Message {
var message: ?*c.notmuch_message_t = null;
const rc = c.notmuch_database_index_file(self.database, filename, indexopts, &message);
return statusToError(Message, rc, .{ .duplicate = false, .message = message }) catch |err| switch (err) {
error.DuplicateMessageID => return .{ .duplicate = true, .message = message },
else => |e| return e,
};
}
pub fn find_message_by_filename(self: *const Database, filename: [:0]const u8) Error!Message {
var message: ?*c.notmuch_message_t = null;
const rc = c.notmuch_database_find_message_by_filename(self.database, filename, &message);
return try statusToError(Message, rc, .{ .message = message });
}
pub fn remove_message(self: *const Database, filename: [:0]const u8) Error!void {
const rc = c.notmuch_database_remove_message(self.database, filename);
return try statusToError(void, rc, {});
}
};
pub const Message = struct {
duplicate: ?bool = null,
message: ?*c.notmuch_message_t = null,
pub fn add_tag(self: *const Message, tag: [:0]const u8) Error!void {
const rc = c.notmuch_message_add_tag(self.message, tag);
return try statusToError(void, rc, {});
}
pub fn deinit(self: *const Message) void {
_ = c.notmuch_message_destroy(self.message);
}
};