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Make git dependencies faster + further optimize bun install (#15771)

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This commit is contained in:
Jarred Sumner
2024-12-14 19:42:23 -08:00
committed by GitHub
parent 5326a998c7
commit 3ce6ffa6be
5 changed files with 86 additions and 48 deletions
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37
src/sys.zig
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@@ -3411,15 +3411,19 @@ pub const File = struct {
return .{ .result = buf[0..read_amount] };
}
pub fn readToEndWithArrayList(this: File, list: *std.ArrayList(u8)) Maybe(usize) {
const size = switch (this.getEndPos()) {
.err => |err| {
return .{ .err = err };
},
.result => |s| s,
};
list.ensureTotalCapacityPrecise(size + 16) catch bun.outOfMemory();
pub fn readToEndWithArrayList(this: File, list: *std.ArrayList(u8), probably_small: bool) Maybe(usize) {
if (probably_small) {
list.ensureUnusedCapacity(64) catch bun.outOfMemory();
} else {
list.ensureTotalCapacityPrecise(
switch (this.getEndPos()) {
.err => |err| {
return .{ .err = err };
},
.result => |s| s,
} + 16,
) catch bun.outOfMemory();
}
var total: i64 = 0;
while (true) {
@@ -3447,9 +3451,22 @@ pub const File = struct {
return .{ .result = @intCast(total) };
}
/// Use this function on potentially large files.
/// Calls fstat() on the file to get the size of the file and avoids reallocations + extra read() calls.
pub fn readToEnd(this: File, allocator: std.mem.Allocator) ReadToEndResult {
var list = std.ArrayList(u8).init(allocator);
return switch (readToEndWithArrayList(this, &list)) {
return switch (readToEndWithArrayList(this, &list, false)) {
.err => |err| .{ .err = err, .bytes = list },
.result => .{ .err = null, .bytes = list },
};
}
/// Use this function on small files < 1024 bytes.
/// This will skip the fstat() call.
pub fn readToEndSmall(this: File, allocator: std.mem.Allocator) ReadToEndResult {
var list = std.ArrayList(u8).init(allocator);
return switch (readToEndWithArrayList(this, &list, true)) {
.err => |err| .{ .err = err, .bytes = list },
.result => .{ .err = null, .bytes = list },
};