fix: respect .gitignore in grafbase deploy

A user was running into issues with `grafbase deploy` yesterday, where
deployments failed with a bizzare error very similar to [this one][1].

We eventually tracked this down to files in the users `.direnv` or `.devenv`
folders - based on the tar-rs issue _probably_ hard links of some description.
While it would be good to not choke on hardlinks, I'd argue we shouldn't have
been archiving these files in the first place: they're clearly meant to stay
local to the users machine.

So this PR switches `walkdir` for `ignore`, which will respect `.gitignore`
files etc, providing users with a sensible (and in most cases zero effort) way
to exclude files from the archive we build on `grafbase deploy`.  I think this
is a sensible default.

This _could_ have ramifications for anyone doing a `grafbase deploy` after some
kind of local build step, though I don't know how likely that is really.  I
suggest we try it and see - if anyone complains we can revisit, maybe adding a
CLI flag to change the behaviour.

[1]: alexcrichton/tar-rs#313

cli/crates/backend/Cargo.toml

@@ -17,6 +17,7 @@ const_format = { version = "0.2", features = ["rust_1_64"] }
 cynic = { workspace = true, features = ["http-reqwest"] }
 dirs = "5"
 http-cache-reqwest = "0.13"
+ignore = "0.4"
 reqwest = { workspace = true, features = [
     "rustls-tls",
     "stream",
@@ -35,7 +36,6 @@ tower-http = { workspace = true, features = ["trace"] }
 ulid = "1"
 url = "2"
 urlencoding = "2"
-walkdir = "2"
 
 common = { package = "grafbase-local-common", path = "../common", version = "0.59.0" }
 server = { package = "grafbase-local-server", path = "../server", version = "0.59.0" }

cli/crates/backend/src/api/deploy.rs

@@ -11,12 +11,12 @@ use common::consts::PROJECT_METADATA_FILE;
 use common::environment::Project;
 use cynic::http::ReqwestExt;
 use cynic::{Id, MutationBuilder};
+use ignore::DirEntry;
 use reqwest::{header, Body, Client};
 use std::ffi::OsStr;
 use std::path::Path;
 use tokio::fs::read_to_string;
 use tokio_util::codec::{BytesCodec, FramedRead};
-use walkdir::{DirEntry, WalkDir};
 
 const ENTRY_BLACKLIST: [&str; 2] = ["node_modules", ".env"];
 
@@ -54,10 +54,19 @@ pub async fn deploy() -> Result<(), ApiError> {
                 .map_err(ApiError::AppendToArchive)?;
         }
 
-        let walker = WalkDir::new(&project.path).min_depth(1).into_iter();
-        for entry in walker.filter_entry(|entry| should_traverse_entry(entry, &project.path)) {
+        let walker = ignore::WalkBuilder::new(&project.path)
+            .hidden(false)
+            .filter_entry(|entry| should_traverse_entry(entry, &project.path))
+            .build();
+
+        for entry in walker {
             let entry = entry.map_err(ApiError::ReadProjectFile)?;
 
+            if entry.path() == project.path {
+                // walker always includes the root path in its traversal, so skip that
+                continue;
+            }
+
             let entry_path = entry.path().to_owned();
             let path_in_tar = entry_path.strip_prefix(&project.path).expect("must include prefix");
             let entry_metadata = entry.metadata().map_err(ApiError::ReadProjectFile)?;

cli/crates/backend/src/api/errors.rs

@@ -114,7 +114,7 @@ pub enum ApiError {
 
     /// returned if a project file could not be read
     #[error("could not read a project file\nCaused by: {0}")]
-    ReadProjectFile(walkdir::Error),
+    ReadProjectFile(ignore::Error),
 
     /// returned if a project file could not be opened
     #[error("could not open a project file\nCaused by: {0}")]