chore(deps): upgrade jj-lib to 0.42.0

Introduce stricter requirements regarding AI-powered contributions, as
inspired by the Linux Kernel's guidelines.

.envrc

@@ -4,8 +4,6 @@ if ! has nix_direnv_version || ! nix_direnv_version 3.1.0; then
   source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.1.0/direnvrc" "sha256-yMJ2OVMzrFaDPn7q8nCBZFRYpL/f0RcHzhmw/i6btJM="
 fi
 
-export DEVENV_IN_DIRENV_SHELL=true
-
 # Load .env file if present
 dotenv_if_exists
 
@@ -20,5 +18,5 @@ if [[ -f .envrc.local ]]; then
 fi
 
 if ! use flake . --no-pure-eval; then
-  echo "Devenv could not be built. The devenv environment was not loaded. Make the necessary changes to flake.nix and hit enter to try again." >&2
+  echo "Development shell could not be built. The environment was not loaded. Make the necessary changes to flake.nix and hit enter to try again." >&2
 fi

.github/workflows/action.yml

@@ -1,4 +1,4 @@
-name: Publish Docker Images
+name: Run checks and build archives
 
 on:
   push:
@@ -6,7 +6,7 @@ on:
       - main
       - develop
     tags:
-      - 'v*.*.*'
+      - "v*.*.*"
   pull_request:
     types: [opened, synchronize, reopened]
 
@@ -56,32 +56,36 @@ jobs:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
           SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
 
-      - name: Build Linux release binary
-        run: nix build --no-pure-eval --accept-flake-config
+  build:
+    needs: coverage-and-sonar
+    strategy:
+      matrix:
+        target: ["linux-x86_64", "linux-aarch64", "windows-x86_64"]
 
-      - name: Prepare Linux binary
-        run: |
-            mkdir dist-linux
-            cp result/bin/jj-cz dist-linux/
-            cp LICENSE.*.md dist-linux/
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Upload Linux artifact
+      - name: Install Nix
+        uses: cachix/install-nix-action@v31
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+
+      - name: Set up cachix
+        uses: cachix/cachix-action@v17
+        with:
+          name: phundrak
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+
+      - name: Build jj-cz archive
+        run: nix build .#${{matrix.target}}-archive
+
+      - name: Upload artifact
         uses: actions/upload-artifact@v3
         with:
-          name: jj-cz-x86_64-unknown-linux-gnu
-          path: dist-linux/*
-
-      - name: Build Windows release binary
-        run: nix build .#windows --no-pure-eval --accept-flake-config
-
-      - name: Prepare Windows binary
-        run: |
-            mkdir -p dist-windows
-            cp result/bin/jj-cz.exe dist-windows/
-            cp LICENSE.*.md dist-windows/
-
-      - name: Upload Windows artifact
-        uses: actions/upload-artifact@v3
-        with:
-          name: jj-cz-x86_64-pc-windows-gnu
-          path: dist-windows/*
+          name: jj-cz-${{matrix.target}}
+          path: result/dist/*

.github/workflows/release.yml

@@ -2,33 +2,16 @@ name: Release
 
 on:
   push:
-     branches:
-       - main
+    branches:
+      - main
 
 jobs:
-  checks:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Install Nix
-        uses: cachix/install-nix-action@v31
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-
-      - name: Set up cachix
-        uses: cachix/cachix-action@v17
-        with:
-          name: phundrak
-          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
-
-      - name: Run Checks
-        shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
-        run: just check-all
-
   release:
-    needs: checks
     runs-on: ubuntu-latest
+    outputs:
+      release: ${{ steps.releasable.outputs.release }}
+      release_id: ${{ steps.create_release.outputs.release_id }}
+      version: ${{ steps.next_version.outputs.version }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -49,58 +32,103 @@ jobs:
       - name: Check for releasable commits
         id: releasable
         run: |
-          COUNT=$(nix develop --no-pure-eval --command just cliff-count)
-          echo "count=$COUNT" >> $GITHUB_OUTPUT
+          COUNT=$(nix develop --no-pure-eval --accept-flake-config --command just cliff-count)
+          if [ "$COUNT" -gt 0 ]; then
+            echo "release=true" >> $GITHUB_OUTPUT
+          else
+            echo "release=false" >> $GITHUB_OUTPUT
+          fi
 
       - name: Determine next version
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         id: next_version
         run: |
-          CLIFF_NEXT_VERSION=$(nix develop --no-pure-eval --command just cliff-next-version)
+          CLIFF_NEXT_VERSION=$(nix develop --no-pure-eval --accept-flake-config --command just cliff-next-version)
           echo "version=$CLIFF_NEXT_VERSION" >> $GITHUB_OUTPUT
 
       - name: Update changelog
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: just cliff-bump
 
       - name: Create release commit
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         env:
           VERSION: ${{ steps.next_version.outputs.version }}
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: just commit-release $VERSION
 
       - name: Create version tag
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         env:
           VERSION: ${{ steps.next_version.outputs.version }}
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: just create-release-tag $VERSION
 
-      - name: Build Linux release binaries
-        if: steps.releasable.outputs.count > 0
-        run: nix build
-
-      - name: Build Windows release binaries
-        if: steps.releasable.outputs.count > 0
-        run: nix build .#windows
+      - name: Create Gitea release
+        if: steps.releasable.outputs.release == 'true'
+        id: create_release
+        env:
+          VERSION: ${{ steps.next_version.outputs.version }}
+          CI_TOKEN: ${{ secrets.CI_TOKEN }}
+        shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
+        run: |
+          RESPONSE=$(curl -s -X POST \
+            -H "Authorization: token $CI_TOKEN" \
+            -H "Content-Type: application/json" \
+            "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases" \
+            -d "{\"tag_name\": \"v${VERSION}\", \"name\": \"v${VERSION}\"}")
+          echo "release_id=$(echo "$RESPONSE" | jq -r '.id')" >> $GITHUB_OUTPUT
 
       - name: Publish on crates.io
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: cargo publish
 
       - name: Rebase develop onto main
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: just rebase-develop
 
       - name: Bump to next dev version
-        if: steps.releasable.outputs.count > 0
+        if: steps.releasable.outputs.release == 'true'
         env:
           VERSION: ${{ steps.next_version.outputs.version }}
         shell: bash -c "nix develop --no-pure-eval --accept-flake-config --command {0}"
         run: just update-develop-version $VERSION
+
+  build:
+    needs: release
+    if: needs.release.outputs.release == 'true'
+    strategy:
+      matrix:
+        target: ["linux-x86_64", "linux-aarch64", "windows-x86_64"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v31
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+
+      - name: Set up cachix
+        uses: cachix/cachix-action@v17
+        with:
+          name: phundrak
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+
+      - name: Build jj-cz archive
+        run: nix build .#${{ matrix.target }}-archive
+
+      - name: Upload release asset
+        env:
+          CI_TOKEN: ${{ secrets.CI_TOKEN }}
+          RELEASE_ID: ${{ needs.release.outputs.release_id }}
+        run: |
+          curl -s -X POST \
+            -H "Authorization: token $CI_TOKEN" \
+            -F "attachment=@$(ls result/dist/*.zip)" \
+            "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases/${RELEASE_ID}/assets"

AGENTS.md

@@ -47,7 +47,8 @@ accepted, provided you
    assistance);
 3. are prepared to discuss it directly with human reviewers.
 
-**All AI usage requires explicit disclosure**, except in these cases:
+**All AI usage requires explicit disclosure** (see Attribution section
+for commit message requirements), except in these cases:
 - Trivial tab autocompletion, but only for completion that you have
   already conceptualized in your mind.
 - Asking the AI about knowledge that is not directly related to your
@@ -62,6 +63,40 @@ the AI **MUST** be included in the repository. AI **MAY** generate the
 initial output, but the final specification **MUST** be entirely
 reviewed and understood by a human.
 
+### Attribution
+<!-- Inspired by the Linux Kernel AI Coding Assistants guidelines -->
+
+When using AI assistance in contributions:
+
+- **AI cannot be a commit author.** All commits must be authored by a
+  human contributor.
+- **AI cannot sign off commits.** Only humans can legally certify
+  commits by adding a `Signed-off-by:` tag. AI tools MUST NOT add
+  `Signed-off-by` tags.
+- **The human author bears full responsibility.** The human
+  contributor is responsible for:
+  - Reviewing all AI-generated or AI-assisted code
+  - Ensuring compliance with licensing requirements
+  - Taking full responsibility for the contribution
+- **AI-assisted commits must include an `Assisted-by:` footer**. The
+  format is:
+
+  ```
+  Assisted-by: AGENT_NAME:MODEL_VERSION [TOOL1] [TOOL2]
+  ```
+
+  Where:
+  - `AGENT_NAME` is the name of the AI tool or framework
+  - `MODEL_VERSION` is the specific model version used
+  - `[TOOL1] [TOOL2]` are optional specialized analysis tools used
+    (not basic tools like git, cargo, Nix, editors)
+
+  Example:
+
+  ```
+  Assisted-by: Claude:claude-3-sonnet
+  ```
+
 ---
 
 ## Guidelines for AI Agents

CONTRIBUTING.md

@@ -73,7 +73,44 @@ adhere to the following requirements:
    (bug reports, feature requests, pull request descriptions,
    responding to humans, ...).
 
-For more info, please refer to the [AGENTS.md](AGENTS.md) file.
+### Attribution
+
+When using AI assistance in contributions:
+
+- **AI cannot be a commit author.** All commits must be authored by a
+  human contributor.
+- **AI cannot sign off commits.** Only humans can legally certify
+  commits by adding a `Signed-off-by:` tag. AI tools MUST NOT add
+  `Signed-off-by` tags.
+- **The human author bears full responsibility.** The human
+  contributor is responsible for:
+  - Reviewing all AI-generated or AI-assisted code
+  - Ensuring compliance with licensing requirements
+  - Taking full responsibility for the contribution
+- **AI-assisted commits must include an `Assisted-by:` footer**. The
+  format is:
+
+  ```
+  Assisted-by: AGENT_NAME:MODEL_VERSION [TOOL1] [TOOL2]
+  ```
+
+  Where:
+  - `AGENT_NAME` is the name of the AI tool or framework
+  - `MODEL_VERSION` is the specific model version used
+  - `[TOOL1] [TOOL2]` are optional specialized analysis tools used
+    (not basic tools like git, cargo, Nix, editors)
+
+  Example:
+
+  ```
+  Assisted-by: Claude:claude-3-sonnet
+  ```
+
+  See the [AGENTS.md](AGENTS.md#attribution) file for the full format
+  specification.
+
+For more info, please refer to the [AGENTS.md](AGENTS.md)
+file.
 
 ## Code of Conduct
 

Cargo.toml

@@ -24,21 +24,22 @@ test-utils = []
 [dependencies]
 async-trait = "0.1.89"
 etcetera = "0.11.0"
-clap = { version = "4.5.57", features = ["derive"] }
-git-conventional = "0.12.9"
-inquire = { version = "0.9.2", features = ["editor"] }
-jj-lib = "0.39.0"
-lazy-regex = { version = "3.5.1", features = ["lite"] }
+clap = { version = "4.6.1", features = ["derive"] }
+git-conventional = "1.1.0"
+inquire = { version = "0.9.4", features = ["editor"] }
+jj-lib = "0.42.0"
+lazy-regex = { version = "3.6.0", features = ["lite"] }
 thiserror = "2.0.18"
-tokio = { version = "1.49.0", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1.52.3", features = ["macros", "rt-multi-thread"] }
 textwrap = "0.16.2"
 unicode-width = "0.2.2"
-chrono = "0.4.44"
+chrono = "0.4.45"
+futures-util = "0.3.32"
 
 [dev-dependencies]
-assert_cmd = "2.1.2"
-assert_fs = "1.1.3"
-predicates = "3.1.3"
+assert_cmd = "2.2.2"
+assert_fs = "1.1.4"
+predicates = "3.1.4"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }

README.md

@@ -24,6 +24,16 @@ jj-cz
 The tool detects whether you're in a Jujutsu repository, guides you
 through the commit message, and applies it to your current change.
 
+You can also set the revision message of a few revisions at once, or
+target a single revision other than the current one.
+
+```sh
+jj-cz @- xs develop
+```
+
+No explicit revision is simply the equivalent of `jj-cz @`, like
+`jj desc`.
+
 ## Requirements
 
 - A Jujutsu repository
@@ -41,8 +51,44 @@ what `jj-cz` alone would be good for without `jj`.
 | 130  | Interrupted                                          |
 
 ## Installation
+### From crates.io
+Simply run the following command:
 
-You can install jj-cz with Cargo by building it from source.
+```
+cargo install jj-cz
+```
+
+Done! `jj-cz` is now available!
+
+### With Nix Flakes
+Notice how there’s a `flake.nix` file? This means you can run the
+project using this repository as one of your flakes inputs. In fact,
+that’s how I install it in my own NixOS configuration! Add this
+repository to your configuration:
+
+```nix
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+
+    jj-cz = {
+      url = "git+https://labs.phundrak.com/phundrak/jj-cz";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+}
+```
+
+And tadah! you can now install
+`inputs.jj-cz.packages.${pkgs.stdenv.hostPlatform.system}.default`
+among your other packages. Take a look at my
+[`jujutsu.nix`](https://labs.phundrak.com/phundrak/nix-config/src/branch/main/users/modules/dev/vcs/jujutsu.nix)
+module if you need some inspiration.
+
+### From source
+
+You can also install `jj-cz` with Cargo by building it from source.
+Just make sure Rust is available on your machine (duh!).
 
 ```sh
 cargo install --path .

build.rs

@@ -2,7 +2,12 @@ use cargo_lock::Lockfile;
 
 fn main() {
     let lockfile = Lockfile::load("Cargo.lock").expect("Cargo.lock not found");
-    let version = lockfile.packages.iter().find(|p| p.name.as_str() == "jj-lib").map(|p| p.version.to_string()).unwrap_or_else(|| "unknown".to_string());
+    let version = lockfile
+        .packages
+        .iter()
+        .find(|p| p.name.as_str() == "jj-lib")
+        .map(|p| p.version.to_string())
+        .unwrap_or_else(|| "unknown".to_string());
     println!("cargo:rustc-env=JJ_LIB_VERSION={version}");
     println!("cargo:rerun-if-changed=Cargo.lock");
 }

flake.lock

@@ -23,65 +23,6 @@
         "type": "github"
       }
     },
-    "cachix": {
-      "inputs": {
-        "devenv": [
-          "devenv"
-        ],
-        "flake-compat": [
-          "devenv",
-          "flake-compat"
-        ],
-        "git-hooks": [
-          "devenv",
-          "git-hooks"
-        ],
-        "nixpkgs": [
-          "devenv",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1760971495,
-        "narHash": "sha256-IwnNtbNVrlZIHh7h4Wz6VP0Furxg9Hh0ycighvL5cZc=",
-        "owner": "cachix",
-        "repo": "cachix",
-        "rev": "c5bfd933d1033672f51a863c47303fc0e093c2d2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "ref": "latest",
-        "repo": "cachix",
-        "type": "github"
-      }
-    },
-    "devenv": {
-      "inputs": {
-        "cachix": "cachix",
-        "flake-compat": "flake-compat",
-        "flake-parts": "flake-parts",
-        "git-hooks": "git-hooks",
-        "nix": "nix",
-        "nixd": "nixd",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1770304289,
-        "narHash": "sha256-+g+XMyB1zi50h2N38GE32l7ZONX4oW7Nw6QSXzfNiwk=",
-        "owner": "cachix",
-        "repo": "devenv",
-        "rev": "fd777e39027d393346e4df672d51ad2bf44b2a12",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "devenv",
-        "type": "github"
-      }
-    },
     "fenix": {
       "inputs": {
         "nixpkgs": [
@@ -104,58 +45,6 @@
         "type": "github"
       }
     },
-    "flake-compat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1761588595,
-        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
-    "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "devenv",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1760948891,
-        "narHash": "sha256-TmWcdiUUaWk8J4lpjzu4gCGxWY6/Ok7mOK4fIFfBuU4=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "864599284fc7c0ba6357ed89ed5e2cd5040f0c04",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
-    "flake-root": {
-      "locked": {
-        "lastModified": 1723604017,
-        "narHash": "sha256-rBtQ8gg+Dn4Sx/s+pvjdq3CB2wQNzx9XGFq/JVGCB6k=",
-        "owner": "srid",
-        "repo": "flake-root",
-        "rev": "b759a56851e10cb13f6b8e5698af7b59c44be26e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "srid",
-        "repo": "flake-root",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -190,141 +79,25 @@
         "type": "github"
       }
     },
-    "git-hooks": {
-      "inputs": {
-        "flake-compat": [
-          "devenv",
-          "flake-compat"
-        ],
-        "gitignore": "gitignore",
-        "nixpkgs": [
-          "devenv",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1760663237,
-        "narHash": "sha256-BflA6U4AM1bzuRMR8QqzPXqh8sWVCNDzOdsxXEguJIc=",
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "rev": "ca5b894d3e3e151ffc1db040b6ce4dcc75d31c37",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "type": "github"
-      }
-    },
-    "gitignore": {
-      "inputs": {
-        "nixpkgs": [
-          "devenv",
-          "git-hooks",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1709087332,
-        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
-        "owner": "hercules-ci",
-        "repo": "gitignore.nix",
-        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "gitignore.nix",
-        "type": "github"
-      }
-    },
-    "nix": {
-      "inputs": {
-        "flake-compat": [
-          "devenv",
-          "flake-compat"
-        ],
-        "flake-parts": [
-          "devenv",
-          "flake-parts"
-        ],
-        "git-hooks-nix": [
-          "devenv",
-          "git-hooks"
-        ],
-        "nixpkgs": [
-          "devenv",
-          "nixpkgs"
-        ],
-        "nixpkgs-23-11": [
-          "devenv"
-        ],
-        "nixpkgs-regression": [
-          "devenv"
-        ]
-      },
-      "locked": {
-        "lastModified": 1769708679,
-        "narHash": "sha256-uFKkp2/SjIqbu5HtINg/hwHN6qaqcxLIbL/om7dT3kI=",
-        "owner": "cachix",
-        "repo": "nix",
-        "rev": "72bec37fabbfe378d677868ec42eeb83acf07a4c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "ref": "devenv-2.32",
-        "repo": "nix",
-        "type": "github"
-      }
-    },
-    "nixd": {
-      "inputs": {
-        "flake-parts": [
-          "devenv",
-          "flake-parts"
-        ],
-        "flake-root": "flake-root",
-        "nixpkgs": [
-          "devenv",
-          "nixpkgs"
-        ],
-        "treefmt-nix": "treefmt-nix"
-      },
-      "locked": {
-        "lastModified": 1763964548,
-        "narHash": "sha256-JTRoaEWvPsVIMFJWeS4G2isPo15wqXY/otsiHPN0zww=",
-        "owner": "nix-community",
-        "repo": "nixd",
-        "rev": "d4bf15e56540422e2acc7bc26b20b0a0934e3f5e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nixd",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1767052823,
-        "narHash": "sha256-Fhuljcy7pJ8HacYYATRcm5rdKXx8P6D/0g19ppzDRNY=",
-        "owner": "cachix",
-        "repo": "devenv-nixpkgs",
-        "rev": "538a5124359f0b3d466e1160378c87887e3b51a4",
+        "lastModified": 1779877693,
+        "narHash": "sha256-NOF9NAREhxr50bbBfVcVOq+ArCMSoe8dP79Pk2uyARk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4100e830e085863741bc69b156ec4ccd53ab5be0",
         "type": "github"
       },
       "original": {
-        "owner": "cachix",
-        "ref": "rolling",
-        "repo": "devenv-nixpkgs",
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
         "alejandra": "alejandra",
-        "devenv": "devenv",
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
         "rust-overlay": "rust-overlay"
@@ -354,11 +127,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1770260791,
-        "narHash": "sha256-ADTBfENFjRVDQMcCycyX/pAy6NFI/Ct6Mrar3gsmXI0=",
+        "lastModified": 1779992051,
+        "narHash": "sha256-4YWGv/0NkAdtTW1MXfaLYpfC9BhpCy9k1pWkR0xI9uw=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "42ec85352e419e601775c57256a52f6d48a39906",
+        "rev": "e93ad0df1073b2c969a8f0c1f10b84e870469d40",
         "type": "github"
       },
       "original": {
@@ -381,28 +154,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "treefmt-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "devenv",
-          "nixd",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1734704479,
-        "narHash": "sha256-MMi74+WckoyEWBRcg/oaGRvXC9BVVxDZNRMpL+72wBI=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "65712f5af67234dad91a5a4baee986a8b62dbf8f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -2,16 +2,12 @@
   description = "Conventional commits for Jujutsu";
 
   inputs = {
-    nixpkgs.url = "github:cachix/devenv-nixpkgs/rolling";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
     alejandra = {
       url = "github:kamadorueda/alejandra/4.0.0";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    devenv = {
-      url = "github:cachix/devenv";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
     rust-overlay = {
       url = "github:oxalica/rust-overlay";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -19,8 +15,16 @@
   };
 
   nixConfig = {
-    extra-trusted-public-keys = ["devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=" "phundrak.cachix.org-1:osJAkYO0ioTOPqaQCIXMfIRz1/+YYlVFkup3R2KSexk="];
-    extra-substituters = ["https://devenv.cachix.org" "https://phundrak.cachix.org"];
+    extra-trusted-public-keys = [
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
+      "phundrak.cachix.org-1:osJAkYO0ioTOPqaQCIXMfIRz1/+YYlVFkup3R2KSexk="
+    ];
+    extra-substituters = [
+      "https://nix-community.cachix.org"
+      "https://devenv.cachix.org"
+      "https://phundrak.cachix.org"
+    ];
   };
 
   outputs = {
@@ -29,37 +33,17 @@
     rust-overlay,
     alejandra,
     ...
-  } @ inputs:
+  }:
     flake-utils.lib.eachDefaultSystem (
       system: let
         overlays = [(import rust-overlay)];
         pkgs = import nixpkgs {inherit system overlays;};
         rustVersion = pkgs.rust-bin.stable.latest.default;
-        rustPlatform = pkgs.makeRustPlatform {
-          cargo = rustVersion;
-          rustc = rustVersion;
-        };
+        packages = import ./nix/packages.nix {inherit pkgs system;};
       in {
+        inherit packages;
         formatter = alejandra.defaultPackage.${system};
-        packages = let
-          nativeRustVersion = pkgs.rust-bin.stable.latest.default;
-          nativeRustPlatform = pkgs.makeRustPlatform {
-            cargo = nativeRustVersion;
-            rustc = nativeRustVersion;
-          };
-          mingwPkgs = pkgs.pkgsCross.mingwW64;
-          windowsRustVersion = pkgs.rust-bin.stable.latest.default.override {
-            targets = ["x86_64-pc-windows-gnu"];
-          };
-          windowsRustPlatform = mingwPkgs.makeRustPlatform {
-            cargo = windowsRustVersion;
-            rustc = windowsRustVersion;
-          };
-        in
-          import ./nix/package.nix {inherit pkgs nativeRustPlatform windowsRustPlatform;};
-        devShell = import ./nix/shell.nix {
-          inherit inputs pkgs rustVersion;
-        };
+        devShell = import ./nix/shell.nix {inherit pkgs rustVersion;};
       }
     );
 }

nix/make-archive.nix

@@ -0,0 +1,16 @@
+{
+  bin,
+  pkgs,
+  archiveName
+}:
+pkgs.stdenv.mkDerivation rec {
+  name = "jj-cz-${archiveName}";
+  src = pkgs.lib.cleanSource ../.;
+  nativeBuildInputs = [pkgs.zip];
+  buildPhase = ''
+    mkdir -p $out/dist
+    zip -j $out/dist/${name}.zip ${bin}/bin/jj-cz* ${src}/README.md ${src}/LICENSE.*
+  '';
+  installPhase = "";
+  dontConfigure = true;
+}

nix/make-binary.nix

@@ -0,0 +1,28 @@
+{
+  target,
+  pkgs,
+}: let
+  cargoToml = fromTOML (builtins.readFile ../Cargo.toml);
+  name = cargoToml.package.name;
+  version = cargoToml.package.version;
+  buildArgs = {
+    pname = name;
+    inherit version;
+    src = pkgs.lib.cleanSource ../.;
+    # cargoLock.lockFile = ../Cargo.lock;
+    cargoHash = "sha256-yfKaqc+7lvxDukAXxazc57GFs386rr9vUsDk1pobLRM=";
+    useNextest = true;
+    meta = {
+      inherit (cargoToml.package) description homepage;
+    };
+    postBuild = "${pkgs.upx}/bin/upx target/*/release/${name}${target.exeSuffix}";
+  };
+  rustVersion = pkgs.rust-bin.stable.latest.default.override {
+    targets = [target.triple];
+  };
+  rustPlatform = target.crossPkgs.makeRustPlatform {
+    cargo = rustVersion;
+    rustc = rustVersion;
+  };
+in
+  rustPlatform.buildRustPackage buildArgs

nix/package.nix

@@ -1,36 +0,0 @@
-{
-  pkgs,
-  nativeRustPlatform,
-  windowsRustPlatform,
-  ...
-}: let
-  cargoToml = fromTOML (builtins.readFile ../Cargo.toml);
-  name = cargoToml.package.name;
-  version = cargoToml.package.version;
-  buildArgs = {
-    pname = name;
-    inherit version;
-    src = pkgs.lib.cleanSource ../.;
-    cargoLock.lockFile = ../Cargo.lock;
-    useNextest = true;
-    meta = {
-      inherit (cargoToml.package) description homepage;
-    };
-    postBuild = ''
-      ${pkgs.upx}/bin/upx target/*/release/${name}
-    '';
-  };
-  nativeBuild =
-    nativeRustPlatform.buildRustPackage buildArgs
-    // {
-      postBuild = "${pkgs.upx}/bin/upx target/*/release/${name}";
-    };
-  windowsBuild =
-    windowsRustPlatform.buildRustPackage buildArgs
-    // {
-      postBuild = "${pkgs.upx}/bin/upx target/*/release/${name}.exe";
-    };
-in {
-  default = nativeBuild;
-  windows = windowsBuild;
-}

nix/packages.nix

@@ -0,0 +1,82 @@
+{
+  pkgs,
+  system,
+  ...
+}: let
+  mkRustBuild = import ./make-binary.nix;
+  mkArchive = import ./make-archive.nix;
+  targets = {
+    linux-x86_64 = {
+      crossPkgs = pkgs;
+      triple = "x86_64-unknown-linux-gnu";
+      exeSuffix = "";
+    };
+    linux-aarch64 = {
+      crossPkgs = pkgs.pkgsCross.aarch64-multiplatform;
+      triple = "aarch64-unknown-linux-gnu";
+      exeSuffix = "";
+    };
+    windows-x86_64 = {
+      crossPkgs = pkgs.pkgsCross.mingwW64;
+      triple = "x86_64-pc-windows-gnu";
+      exeSuffix = ".exe";
+    };
+    windows-aarch64 = {
+      crossPkgs = pkgs.pkgsCross.aarch64-windows;
+      triple = "aarch64-pc-windows-gnu";
+      exeSuffix = ".exe";
+    };
+    macos-x86_64 = {
+      crossPkgs = pkgs.pkgsCross.x86_64-darwin;
+      triple = "x86_64-apple-darwin";
+      exeSuffix = "";
+    };
+    macos-aarch64 = {
+      crossPkgs = pkgs.pkgsCross.aarch64-darwin;
+      triple = "aarch64-apple-darwin";
+      exeSuffix = "";
+    };
+  };
+  bins = {
+    linux-x86_64 = mkRustBuild {
+      inherit pkgs;
+      target = targets.linux-x86_64;
+    };
+    linux-aarch64 = mkRustBuild {
+      inherit pkgs;
+      target = targets.linux-aarch64;
+    };
+    windows-x86_64 = mkRustBuild {
+      inherit pkgs;
+      target = targets.windows-x86_64;
+    };
+  };
+  packages =
+    {
+      linux-x86_64-archive = mkArchive {
+        inherit pkgs;
+        bin = bins.linux-x86_64;
+        archiveName = "x86_64-linux";
+      };
+      linux-aarch64-archive = mkArchive {
+        inherit pkgs;
+        bin = bins.linux-aarch64;
+        archiveName = "aarch64-linux";
+      };
+      windows-x86_64-archive = mkArchive {
+        inherit pkgs;
+        bin = bins.windows-x86_64;
+        archiveName = "x86_64-windows";
+      };
+    }
+    // bins;
+  defaultBySystem = {
+    "x86_64-linux" = packages.linux-x86_64;
+    "aarch64-linux" = packages.linux-aarch64;
+    "x86_64-windows" = packages.windows-x86_64;
+  };
+in
+  packages
+  // {
+    default = defaultBySystem.${system} or packages.linux-x86_64;
+  }

nix/shell.nix

@@ -1,31 +1,27 @@
 {
-  inputs,
   pkgs,
   rustVersion,
-  ...
 }:
-inputs.devenv.lib.mkShell {
-  inherit inputs pkgs;
-  modules = [
-    {
-      packages = with pkgs; [
-        (rustVersion.override {
-          extensions = [
-            "clippy"
-            "rust-src"
-            "rust-analyzer"
-            "rustfmt"
-          ];
-        })
-        bacon
-        cargo-deny
-        cargo-edit
-        cargo-nextest
-        cargo-tarpaulin
-        git-cliff
-        just
-        typos
+pkgs.mkShell {
+  packages = with pkgs; [
+    (rustVersion.override {
+      extensions = [
+        "clippy"
+        "rust-src"
+        "rust-analyzer"
+        "rustfmt"
       ];
-    }
+    })
+    bacon
+    cargo-deny
+    cargo-edit
+    cargo-nextest
+    cargo-tarpaulin
+    git-cliff
+    just
+    typos
+
+    # for CI
+    jq
   ];
 }

src/jj/lib_executor.rs

@@ -10,6 +10,7 @@ use std::{
 };
 
 use etcetera::BaseStrategy;
+use futures_util::StreamExt;
 use jj_lib::{
     backend::CommitId,
     config::{ConfigSource, StackedConfig},
@@ -151,7 +152,7 @@ impl JjLib {
     }
 
     /// Resolve a revset string to a commit ID
-    fn get_commit_id(&self, revset: &str) -> Result<CommitId, Error> {
+    async fn get_commit_id(&self, revset: &str) -> Result<CommitId, Error> {
         let context = RevsetParseContext {
             workspace: Some(RevsetWorkspaceContext {
                 workspace_name: &self.workspace_name,
@@ -179,20 +180,21 @@ impl JjLib {
             .map_err(|e| Error::from_revset_resolution_error(revset, e))?
             .evaluate(&*repo)
             .map_err(|e| Error::from_revset_evaluation_error(revset, e))?;
-        let mut iter = revision.iter();
-        let commit_id = iter
+        let mut all_ids = revision.commit_change_ids();
+        let commit_id = all_ids
             .next()
+            .await
             .ok_or(Error::RevsetResolutionError {
-                revset: revset.to_string(),
+                revset: revset.into(),
                 context: "No matching revision".to_string(),
             })?
             .map_err(|e| Error::from_revset_evaluation_error(revset, e))?;
-        if iter.next().is_some() {
-            return Err(Error::MultipleRevisions {
+        match all_ids.next().await {
+            None => Ok(commit_id.0),
+            Some(_) => Err(Error::MultipleRevisions {
                 revset: revset.to_string(),
-            });
+            }),
         }
-        Ok(commit_id)
     }
 }
 
@@ -212,7 +214,7 @@ impl JjExecutor for JjLib {
     }
 
     async fn describe(&self, revset: &str, message: &str) -> Result<(), Error> {
-        let commit_id = self.get_commit_id(revset)?;
+        let commit_id = self.get_commit_id(revset).await?;
         let repo = self.repo.lock()?.clone();
         let mut tx = repo.start_transaction();
         let commit = tx
@@ -239,7 +241,8 @@ impl JjExecutor for JjLib {
                 context: format!("{e:?}"),
             })?;
 
-        let new_repo = tx.commit("jj-cz: update commit description")
+        let new_repo = tx
+            .commit("jj-cz: update commit description")
             .await
             .map_err(|e| Error::JjOperation {
                 context: e.to_string(),
@@ -250,7 +253,7 @@ impl JjExecutor for JjLib {
     }
 
     async fn get_description(&self, revset: &str) -> Result<String, Error> {
-        let commit_id = self.get_commit_id(revset)?;
+        let commit_id = self.get_commit_id(revset).await?;
         let repo = self.repo.lock()?.clone();
         let commit = repo
             .store()
@@ -403,16 +406,16 @@ mod tests {
 
     #[tokio::test]
     async fn describe_fails_outside_repo() {
-        let temp_dir = assert_fs::TempDir::new().unwrap();
-
         // with_working_dir returns Err when not in a repo
+        let temp_dir = assert_fs::TempDir::new().unwrap();
         let executor = JjLib::with_working_dir(temp_dir.path()).await;
         assert!(executor.is_err());
 
-        // Use an executor from a valid repo and try to describe a non-existent revset
-        let executor = JjLib::with_working_dir(std::path::Path::new("."))
+        let valid_dir = assert_fs::TempDir::new().unwrap();
+        init_jj_repo(valid_dir.path())
             .await
-            .unwrap();
+            .expect("Failed to init jj repo");
+        let executor = JjLib::with_working_dir(valid_dir.path()).await.unwrap();
         let result = executor
             .describe("this-bookmark-does-not-exist", "test: should fail")
             .await;
@@ -527,9 +530,8 @@ mod tests {
 
     #[tokio::test]
     async fn jj_lib_implements_jj_executor_trait() {
-        let lib = JjLib::with_working_dir(std::path::Path::new(".")).await;
-        fn accepts_executor(_: impl JjExecutor) {}
-        accepts_executor(lib.unwrap());
+        fn assert_implements<T: JjExecutor>() {}
+        assert_implements::<JjLib>();
     }
 
     mod user_config_paths_tests {

src/jj/mock.rs

@@ -56,12 +56,6 @@ impl MockJjExecutor {
         self
     }
 
-    /// Configure get_description() to return a specific value
-    pub fn with_get_description_response(mut self, response: Result<String, Error>) -> Self {
-        self.get_description_response = response;
-        self
-    }
-
     /// Check if is_repository() was called
     pub fn was_is_repo_called(&self) -> bool {
         self.is_repo_called
@@ -72,11 +66,6 @@ impl MockJjExecutor {
     pub fn describe_messages(&self) -> Vec<String> {
         self.describe_calls.lock().unwrap().clone()
     }
-
-    /// Get all revsets visited
-    pub fn described_revsets(&self) -> Vec<String> {
-        self.described_revsets.lock().unwrap().clone()
-    }
 }
 
 #[async_trait(?Send)]

tests/cli.rs

@@ -1,78 +0,0 @@
-use assert_fs::TempDir;
-#[cfg(feature = "test-utils")]
-use jj_cz::{Body, BreakingChange, CommitType, Description, MockJjExecutor, MockPrompts, Scope};
-use jj_cz::{CommitWorkflow, Error, JjLib};
-
-#[cfg(feature = "test-utils")]
-#[tokio::test]
-async fn test_happy_path_integration() {
-    // T037: Happy path integration test
-    let mock_executor = MockJjExecutor::new();
-    let mock_prompts = MockPrompts::new()
-        .with_commit_type(CommitType::Feat)
-        .with_scope(Scope::empty())
-        .with_description(Description::parse("add new feature").unwrap())
-        .with_breaking_change(BreakingChange::No)
-        .with_body(Body::default())
-        .with_confirm(true);
-
-    let workflow = CommitWorkflow::with_prompts(mock_executor, mock_prompts);
-    let result = workflow.run_for_revset("@").await;
-
-    assert!(
-        result.is_ok(),
-        "Workflow should complete successfully: {:?}",
-        result
-    );
-}
-
-#[tokio::test]
-async fn test_not_in_repo() {
-    // T038: Not-in-repo integration test - with_working_dir itself returns the error
-    let temp_dir = TempDir::new().unwrap();
-
-    let result = JjLib::with_working_dir(temp_dir.path()).await;
-
-    assert!(matches!(result, Err(Error::NotARepository)));
-}
-
-#[cfg(feature = "test-utils")]
-#[tokio::test]
-async fn test_cancellation() {
-    // T039: Cancellation integration test
-    // This is tricky to test directly without a TTY
-    // We'll test the error handling path instead
-
-    // Create a mock executor that simulates cancellation
-    struct CancelMock;
-
-    #[async_trait::async_trait(?Send)]
-    impl jj_cz::JjExecutor for CancelMock {
-        async fn is_repository(&self) -> Result<bool, Error> {
-            Ok(true)
-        }
-
-        async fn describe(&self, _revset: &str, _message: &str) -> Result<(), Error> {
-            Err(Error::Cancelled)
-        }
-
-        async fn get_description(&self, _revset: &str) -> Result<String, Error> {
-            Ok(String::new())
-        }
-    }
-
-    let executor = CancelMock;
-    let mock_prompts = MockPrompts::new()
-        .with_commit_type(CommitType::Feat)
-        .with_scope(Scope::empty())
-        .with_description(Description::parse("test").unwrap())
-        .with_breaking_change(BreakingChange::No)
-        .with_body(Body::default())
-        .with_confirm(true);
-    let workflow = CommitWorkflow::with_prompts(executor, mock_prompts);
-
-    let result = workflow.run_for_revset("@").await;
-
-    // Should fail with Cancelled error
-    assert!(matches!(result, Err(Error::Cancelled)));
-}