From 995ebe144009082c04fa35be5475790cac93e7fd Mon Sep 17 00:00:00 2001
From: Satoshi Terasaki <terasakisatoshi.math@gmail.com>
Date: Thu, 8 Jan 2026 16:26:53 +0900
Subject: [PATCH 1/4] Move calcpi-rs into CalcPi.jl/deps directory

This reorganizes the project structure by moving the calcpi-rs Rust library
into CalcPi.jl/deps/calcpi-rs, making it a dependency of the Julia package
rather than a sibling directory.
---
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/.gitignore       | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/Cargo.lock       | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/Cargo.toml       | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/README.md        | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/build.rs         | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/cbindgen.toml    | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/include/calcpi.h | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/c_api.rs     | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/lib.rs       | 0
 {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/main.rs      | 0
 10 files changed, 0 insertions(+), 0 deletions(-)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/.gitignore (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/Cargo.lock (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/Cargo.toml (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/README.md (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/build.rs (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/cbindgen.toml (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/include/calcpi.h (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/c_api.rs (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/lib.rs (100%)
 rename {calcpi-rs => CalcPi.jl/deps/calcpi-rs}/src/main.rs (100%)

diff --git a/calcpi-rs/.gitignore b/CalcPi.jl/deps/calcpi-rs/.gitignore
similarity index 100%
rename from calcpi-rs/.gitignore
rename to CalcPi.jl/deps/calcpi-rs/.gitignore
diff --git a/calcpi-rs/Cargo.lock b/CalcPi.jl/deps/calcpi-rs/Cargo.lock
similarity index 100%
rename from calcpi-rs/Cargo.lock
rename to CalcPi.jl/deps/calcpi-rs/Cargo.lock
diff --git a/calcpi-rs/Cargo.toml b/CalcPi.jl/deps/calcpi-rs/Cargo.toml
similarity index 100%
rename from calcpi-rs/Cargo.toml
rename to CalcPi.jl/deps/calcpi-rs/Cargo.toml
diff --git a/calcpi-rs/README.md b/CalcPi.jl/deps/calcpi-rs/README.md
similarity index 100%
rename from calcpi-rs/README.md
rename to CalcPi.jl/deps/calcpi-rs/README.md
diff --git a/calcpi-rs/build.rs b/CalcPi.jl/deps/calcpi-rs/build.rs
similarity index 100%
rename from calcpi-rs/build.rs
rename to CalcPi.jl/deps/calcpi-rs/build.rs
diff --git a/calcpi-rs/cbindgen.toml b/CalcPi.jl/deps/calcpi-rs/cbindgen.toml
similarity index 100%
rename from calcpi-rs/cbindgen.toml
rename to CalcPi.jl/deps/calcpi-rs/cbindgen.toml
diff --git a/calcpi-rs/include/calcpi.h b/CalcPi.jl/deps/calcpi-rs/include/calcpi.h
similarity index 100%
rename from calcpi-rs/include/calcpi.h
rename to CalcPi.jl/deps/calcpi-rs/include/calcpi.h
diff --git a/calcpi-rs/src/c_api.rs b/CalcPi.jl/deps/calcpi-rs/src/c_api.rs
similarity index 100%
rename from calcpi-rs/src/c_api.rs
rename to CalcPi.jl/deps/calcpi-rs/src/c_api.rs
diff --git a/calcpi-rs/src/lib.rs b/CalcPi.jl/deps/calcpi-rs/src/lib.rs
similarity index 100%
rename from calcpi-rs/src/lib.rs
rename to CalcPi.jl/deps/calcpi-rs/src/lib.rs
diff --git a/calcpi-rs/src/main.rs b/CalcPi.jl/deps/calcpi-rs/src/main.rs
similarity index 100%
rename from calcpi-rs/src/main.rs
rename to CalcPi.jl/deps/calcpi-rs/src/main.rs

From 4b0fbf20a181c8338c121c56e3640214be8555be Mon Sep 17 00:00:00 2001
From: Satoshi Terasaki <terasakisatoshi.math@gmail.com>
Date: Thu, 8 Jan 2026 16:26:56 +0900
Subject: [PATCH 2/4] Update path references to calcpi-rs in build scripts and
 library loading

- Update build.jl to use deps/calcpi-rs instead of ../calcpi-rs
- Update generate_C_API.jl default path to ../deps/calcpi-rs
- Update prologue.jl and C_API.jl to search for library in deps/calcpi-rs/target
---
 CalcPi.jl/deps/build.jl           | 2 +-
 CalcPi.jl/src/C_API.jl            | 4 ++--
 CalcPi.jl/utils/generate_C_API.jl | 6 +++---
 CalcPi.jl/utils/prologue.jl       | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/CalcPi.jl/deps/build.jl b/CalcPi.jl/deps/build.jl
index 7ae979d..bb05556 100644
--- a/CalcPi.jl/deps/build.jl
+++ b/CalcPi.jl/deps/build.jl
@@ -2,7 +2,7 @@ using Pkg
 using Libdl: dlext
 using RustToolChain: cargo
 
-const DEV_DIR::String = joinpath(dirname(dirname(@__DIR__)), "calcpi-rs")
+const DEV_DIR::String = joinpath(@__DIR__, "calcpi-rs")
 
 # Check if the calcpi-rs directory exists locally; if not, do nothing.
 # If it exists, build the Rust project and copy libcalcpi_rs.<ext> to deps/.
diff --git a/CalcPi.jl/src/C_API.jl b/CalcPi.jl/src/C_API.jl
index 9fce600..7eef222 100644
--- a/CalcPi.jl/src/C_API.jl
+++ b/CalcPi.jl/src/C_API.jl
@@ -12,10 +12,10 @@ function get_libcalcpi_rs()
         return local_libcalcpi_path
     end
 
-    # Second, try to find local build in calcpi-rs/target/release or debug
+    # Second, try to find local build in deps/calcpi-rs/target/release or debug
     # On Windows, Rust produces calcpi_rs.dll (no lib prefix)
     # On Unix, Rust produces libcalcpi_rs.so or libcalcpi_rs.dylib (with lib prefix)
-    calcpi_rs_dir = joinpath(dirname(@__DIR__), "..", "calcpi-rs")
+    calcpi_rs_dir = joinpath(dirname(@__DIR__), "deps", "calcpi-rs")
     possible_paths = [
         joinpath(calcpi_rs_dir, "target", "release", "libcalcpi_rs.$(Libdl.dlext)"),
         joinpath(calcpi_rs_dir, "target", "release", "calcpi_rs.$(Libdl.dlext)"),
diff --git a/CalcPi.jl/utils/generate_C_API.jl b/CalcPi.jl/utils/generate_C_API.jl
index 091cc55..735270d 100644
--- a/CalcPi.jl/utils/generate_C_API.jl
+++ b/CalcPi.jl/utils/generate_C_API.jl
@@ -16,7 +16,7 @@ function print_help()
     println("Examples:")
     println("  julia generate_C_API.jl --calcpi-rs-dir /path/to/calcpi-rs")
     println()
-    println("Default: Uses ../../calcpi-rs relative to this script")
+    println("Default: Uses ../deps/calcpi-rs relative to this script")
 end
 
 # Parse command line arguments
@@ -38,8 +38,8 @@ end
 
 # Get calcpi-rs directory from command line or use default
 if calcpi_rs_dir === nothing
-    # Default path
-    calcpi_rs_dir = normpath(joinpath(@__DIR__, "../../calcpi-rs"))
+    # Default path (calcpi-rs is now in CalcPi.jl/deps/calcpi-rs)
+    calcpi_rs_dir = normpath(joinpath(@__DIR__, "../deps/calcpi-rs"))
 else
     # Convert to absolute path
     calcpi_rs_dir = normpath(abspath(calcpi_rs_dir))
diff --git a/CalcPi.jl/utils/prologue.jl b/CalcPi.jl/utils/prologue.jl
index 63f6582..342cb11 100644
--- a/CalcPi.jl/utils/prologue.jl
+++ b/CalcPi.jl/utils/prologue.jl
@@ -10,10 +10,10 @@ function get_libcalcpi_rs()
         return local_libcalcpi_path
     end
 
-    # Second, try to find local build in calcpi-rs/target/release or debug
+    # Second, try to find local build in deps/calcpi-rs/target/release or debug
     # On Windows, Rust produces calcpi_rs.dll (no lib prefix)
     # On Unix, Rust produces libcalcpi_rs.so or libcalcpi_rs.dylib (with lib prefix)
-    calcpi_rs_dir = joinpath(dirname(@__DIR__), "..", "calcpi-rs")
+    calcpi_rs_dir = joinpath(dirname(@__DIR__), "deps", "calcpi-rs")
     possible_paths = [
         joinpath(calcpi_rs_dir, "target", "release", "libcalcpi_rs.$(Libdl.dlext)"),
         joinpath(calcpi_rs_dir, "target", "release", "calcpi_rs.$(Libdl.dlext)"),

From 6fabd022464b48caabf2498753742c53565ea2b3 Mon Sep 17 00:00:00 2001
From: Satoshi Terasaki <terasakisatoshi.math@gmail.com>
Date: Thu, 8 Jan 2026 16:26:59 +0900
Subject: [PATCH 3/4] Update CI workflows for calcpi-rs location change

- Update all working-directory paths from calcpi-rs to CalcPi.jl/deps/calcpi-rs
- Update cache paths and keys to reflect new location
- Update integration test paths
---
 .github/workflows/ci.yml | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index df01ce5..40c6996 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -93,21 +93,21 @@ jobs:
             ~/.cargo/registry/index/
             ~/.cargo/registry/cache/
             ~/.cargo/git/db/
-            calcpi-rs/target/
-          key: ${{ runner.os }}-cargo-calcpi-rs-${{ hashFiles('calcpi-rs/Cargo.lock') }}
+            CalcPi.jl/deps/calcpi-rs/target/
+          key: ${{ runner.os }}-cargo-calcpi-rs-${{ hashFiles('CalcPi.jl/deps/calcpi-rs/Cargo.lock') }}
           restore-keys: |
             ${{ runner.os }}-cargo-calcpi-rs-
 
       - name: Build calcpi-rs
-        working-directory: calcpi-rs
+        working-directory: CalcPi.jl/deps/calcpi-rs
         run: cargo build --release
 
       - name: Test calcpi-rs
-        working-directory: calcpi-rs
+        working-directory: CalcPi.jl/deps/calcpi-rs
         run: cargo test --release
 
       - name: Check generated header
-        working-directory: calcpi-rs
+        working-directory: CalcPi.jl/deps/calcpi-rs
         shell: bash
         run: |
           test -f include/calcpi.h || (echo "Header file not generated" && exit 1)
@@ -151,13 +151,13 @@ jobs:
             ~/.cargo/registry/index/
             ~/.cargo/registry/cache/
             ~/.cargo/git/db/
-            calcpi-rs/target/
-          key: ${{ runner.os }}-cargo-calcpi-rs-${{ hashFiles('calcpi-rs/Cargo.lock') }}
+            CalcPi.jl/deps/calcpi-rs/target/
+          key: ${{ runner.os }}-cargo-calcpi-rs-${{ hashFiles('CalcPi.jl/deps/calcpi-rs/Cargo.lock') }}
           restore-keys: |
             ${{ runner.os }}-cargo-calcpi-rs-
 
       - name: Build calcpi-rs (for CalcPi.jl)
-        working-directory: calcpi-rs
+        working-directory: CalcPi.jl/deps/calcpi-rs
         run: cargo build --release
 
       - name: Build CalcPi.jl
@@ -210,10 +210,10 @@ jobs:
           cd ..
 
           # Build and test calcpi-rs
-          cd calcpi-rs
+          cd CalcPi.jl/deps/calcpi-rs
           cargo build --release
           cargo test --release
-          cd ..
+          cd ../../..
 
           # Build and test CalcPi.jl
           cd CalcPi.jl

From 46815e746a35ef8892e562ff8f1c8831686513c9 Mon Sep 17 00:00:00 2001
From: Satoshi Terasaki <terasakisatoshi.math@gmail.com>
Date: Thu, 8 Jan 2026 16:27:02 +0900
Subject: [PATCH 4/4] Update documentation to reflect calcpi-rs location change

- Update all path references in documentation from calcpi-rs to CalcPi.jl/deps/calcpi-rs
- Update project structure descriptions
- Update build instructions and troubleshooting guides
---
 CalcPi.jl/DEVELOPMENT.md  | 14 +++++++-------
 CalcPi.jl/deps/README.md  |  4 ++--
 CalcPi.jl/utils/README.md | 10 +++++-----
 README.md                 |  4 ++--
 4 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/CalcPi.jl/DEVELOPMENT.md b/CalcPi.jl/DEVELOPMENT.md
index c857883..a8d492b 100644
--- a/CalcPi.jl/DEVELOPMENT.md
+++ b/CalcPi.jl/DEVELOPMENT.md
@@ -28,7 +28,7 @@ CalcPi.jl/
 When you modify the Rust code in `calcpi-rs`:
 
 ```bash
-cd calcpi-rs
+cd CalcPi.jl/deps/calcpi-rs
 # Edit Rust code
 ```
 
@@ -69,7 +69,7 @@ The `prologue.jl` (included in `C_API.jl`) searches for the library in the follo
    - Local build copied by `Pkg.build()`
    - Used during development
 
-2. **`calcpi-rs/target/release/libcalcpi_rs.*`**
+2. **`deps/calcpi-rs/target/release/libcalcpi_rs.*`**
    - Directly built library
    - Fallback when not in `deps/`
 
@@ -94,11 +94,11 @@ If the library is not found:
 
 ```bash
 # 1. Build the Rust library
-cd calcpi-rs
+cd CalcPi.jl/deps/calcpi-rs
 cargo build --release
 
 # 2. Rebuild the Julia package
-cd ../CalcPi.jl
+cd ../..
 julia --project=. deps/build.jl
 ```
 
@@ -111,12 +111,12 @@ To rebuild from a completely clean state:
 rm -rf CalcPi.jl/deps/libcalcpi_rs.*
 
 # 2. Clean build the Rust project
-cd calcpi-rs
+cd CalcPi.jl/deps/calcpi-rs
 cargo clean
 cargo build --release
 
 # 3. Rebuild the Julia package
-cd ../CalcPi.jl
+cd ../..
 julia --project=. deps/build.jl
 ```
 
@@ -135,7 +135,7 @@ julia --project=. deps/build.jl
 
 `deps/build.jl` performs the following:
 
-1. Detect `calcpi-rs` directory
+1. Detect `deps/calcpi-rs` directory
 2. Build Rust library
 3. Copy library to `deps/`
 4. Generate C-API bindings
diff --git a/CalcPi.jl/deps/README.md b/CalcPi.jl/deps/README.md
index 3357aff..c4eb56a 100644
--- a/CalcPi.jl/deps/README.md
+++ b/CalcPi.jl/deps/README.md
@@ -1,6 +1,6 @@
 # deps
 
-The `build.jl` script provides developer-focused support for building the Rust backend required by `CalcPi.jl`. It assumes that the Rust crate `calcpi-rs` is located in the same parent directory as the `CalcPi.jl` package.
+The `build.jl` script provides developer-focused support for building the Rust backend required by `CalcPi.jl`. It assumes that the Rust crate `calcpi-rs` is located in `deps/calcpi-rs` within the `CalcPi.jl` package.
 
 After making changes to the Rust code, it is assumed that you will rebuild the Julia package as follows:
 
@@ -15,7 +15,7 @@ This process will update `src/C_API.jl` and copy the `libcalcpi_rs.dylib` (or th
 
 ## How it works
 
-1. **Detects local Rust crate**: Checks if `../calcpi-rs` directory exists
+1. **Detects local Rust crate**: Checks if `deps/calcpi-rs` directory exists
 2. **Builds Rust library**: Uses `RustToolChain.jl` to run `cargo build --release` in the Rust crate directory
 3. **Copies library**: Copies the built library to `deps/libcalcpi_rs.<ext>`
 4. **Generates C-API bindings**: Runs `utils/generate_C_API.jl` to regenerate `src/C_API.jl`
diff --git a/CalcPi.jl/utils/README.md b/CalcPi.jl/utils/README.md
index 18d5358..4a64809 100644
--- a/CalcPi.jl/utils/README.md
+++ b/CalcPi.jl/utils/README.md
@@ -20,11 +20,11 @@ Based on the mechanism from `SparseIR.jl/utils`, this tool automatically generat
 First, build the Rust library to generate the header file:
 
 ```bash
-cd ../../calcpi-rs
+cd CalcPi.jl/deps/calcpi-rs
 cargo build --release
 ```
 
-This generates `calcpi-rs/include/calcpi.h`.
+This generates `CalcPi.jl/deps/calcpi-rs/include/calcpi.h`.
 
 ### 2. Generating Julia Bindings
 
@@ -35,7 +35,7 @@ cd CalcPi.jl/utils
 julia generate_C_API.jl
 ```
 
-By default, it looks for `../../calcpi-rs`. To specify a different path:
+By default, it looks for `../deps/calcpi-rs`. To specify a different path:
 
 ```bash
 julia generate_C_API.jl --calcpi-rs-dir /path/to/calcpi-rs
@@ -52,7 +52,7 @@ julia generate_C_API.jl --calcpi-rs-dir /path/to/calcpi-rs
 ## Generation Script Behavior
 
 1. **Command-line argument parsing**: Path can be specified with `--calcpi-rs-dir`
-2. **Directory validation**: Checks for the existence of `calcpi-rs/include/calcpi.h`
+2. **Directory validation**: Checks for the existence of `deps/calcpi-rs/include/calcpi.h`
 3. **Parsing with Clang.jl**: Parses the C header
 4. **Julia code generation**: Generates `C_API.jl`
 5. **Prologue insertion**: Adds the contents of `prologue.jl` at the beginning
@@ -82,7 +82,7 @@ Defines the library loading process. It prioritizes local builds and falls back
 Build the Rust library:
 
 ```bash
-cd calcpi-rs && cargo build --release
+cd CalcPi.jl/deps/calcpi-rs && cargo build --release
 ```
 
 ### Error: CEnum not found
diff --git a/README.md b/README.md
index bb41ef1..c4d95ea 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@ This repository is a collection of sample projects demonstrating how to call Rus
 
 ### Main Projects
 
-- **`calcpi-rs/`** - Rust library implementing π calculation using the Monte Carlo method
-- **`CalcPi.jl/`** - Julia package for calling `calcpi-rs` from Julia
+- **`CalcPi.jl/`** - Julia package for calling Rust-implemented Monte Carlo π calculation library
+  - **`CalcPi.jl/deps/calcpi-rs/`** - Rust library implementing π calculation using the Monte Carlo method (embedded in CalcPi.jl)
 
 ### Sample Projects