refactor: CI and nix (#306)

* fix: remove custom fonts

Since they are available in Nix, there is no need to keep them in the project anymore

* chore: remove old obsolete files

* refactor: rewrite Nix files

- Switch from `numtide/flake-utils` to `flake-parts`
- Add custom font derivation for LaTeX
- Add `formatter`
- Switch to `python311`

* ci: update Github workflows

* feat: add `Makefile` for local development

Very useful when used in combination with `nix develop`

* feat: add `.envrc` file for loading development environment with `nix-direnv`

* feat: add `.editorconfig` and `.prettierrc`

* style: reformat files using `prettier`

Run `nix run nixpkgs#nodePackages.prettier -- --write .`

* fix: add workaround to prevent bug with `minted` package

see https://github.com/gpoore/minted/issues/353 for context

* fix: add `version.tex` in the repo

* chore: rewrite `README`

* chore: ignore LaTeX temporary files while building locally

* feat: add `latexindent.pl` configuration file

* style: lint LaTeX files

.editorconfig

@@ -0,0 +1,21 @@
+root = true
+
+[*]
+indent_size = 4
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[Makefile]
+indent_style = tab
+
+[*.{tex,cls,lua,nix}]
+indent_style = space
+indent_size = 2
+max_line_length = 80
+
+[*.md]
+trim_trailing_whitespace = false
+indent_size = 2
+max_line_length = 80

.envrc

@@ -0,0 +1,2 @@
+use flake .
+use flake github:loophp/nix-prettier

.github/settings.yml

@@ -0,0 +1,51 @@
+# https://github.com/probot/settings
+
+branches:
+    - name: master
+      protection:
+          enforce_admins: false
+          required_pull_request_reviews:
+              dismiss_stale_reviews: true
+              require_code_owner_reviews: true
+              required_approving_review_count: 1
+          restrictions: null
+          required_linear_history: true
+          required_status_checks:
+              strict: true
+
+labels:
+    - name: typo
+      color: ee0701
+
+    - name: dependencies
+      color: 0366d6
+
+    - name: enhancement
+      color: 0e8a16
+
+    - name: question
+      color: cc317c
+
+    - name: security
+      color: ee0701
+
+    - name: stale
+      color: eeeeee
+
+repository:
+    allow_merge_commit: true
+    allow_rebase_merge: true
+    allow_squash_merge: true
+    default_branch: master
+    description:
+        "Bartosz Milewski's 'Category Theory for Programmers' unofficial PDF and
+        LaTeX sources"
+    homepage: https://bartoszmilewski.com/2014/10/28/category-theory-for-programmers-the-preface/
+    topics: pdf,haskell,scala,latex,cpp,functional-programming,ocaml,category-theory
+    has_downloads: true
+    has_issues: true
+    has_pages: false
+    has_projects: false
+    has_wiki: false
+    name: milewski-ctfp-pdf
+    private: false

.github/workflows/build.yaml

@@ -1,117 +0,0 @@
-name: Build PDFs
-
-on:
-  - push
-
-jobs:
-  dependencies:
-    name: Build dependencies
-    runs-on: ubuntu-latest
-    outputs:
-      version: ${{ steps.version.outputs.version }}
-
-    steps:
-      - name: Set up Git repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 1
-
-      - name: Create global variables
-        id: version
-        run: echo "::set-output name=version::$(git rev-parse --short HEAD)"
-
-  determine-matrix:
-    name: Figure out the packages we need to build
-    runs-on: ubuntu-latest
-    needs: [dependencies]
-
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
-
-    steps:
-      - name: Set up Git repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 1
-
-      - name: Install the Nix package manager
-        uses: cachix/install-nix-action@v16
-
-      - id: set-matrix
-        run: |
-          echo "::set-output name=matrix::$(
-            nix eval --json --impure \
-              --expr 'builtins.attrNames (import ./.).packages.x86_64-linux'
-          )"
-
-  build:
-    name: Build documents
-    needs: determine-matrix
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        packages: ${{fromJson(needs.determine-matrix.outputs.matrix)}}
-
-    steps:
-      - name: Set up Git repository
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 1
-
-      - name: Install Nix
-        uses: cachix/install-nix-action@v16
-
-      - name: Build ${{ matrix.packages }}.pdf
-        run: |
-          nix build .#${{ matrix.packages }}
-          mkdir -p out
-          cp -ar ./result/* out/
-
-      - name: Upload build assets (${{ matrix.packages }}.pdf)
-        uses: actions/upload-artifact@v2
-        with:
-          name: ctfp
-          path: out/*
-
-  release:
-    name: "Create Github tag/pre-release"
-    runs-on: ubuntu-latest
-    needs: [dependencies, build]
-    outputs:
-      upload_url: ${{ steps.create_release.outputs.upload_url }}
-    steps:
-      - name: Create Github pre-release (${{ needs.dependencies.outputs.version }})
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: v${{ github.run_number }}-${{ needs.dependencies.outputs.version }}
-          release_name: Version ${{ github.run_number }} (${{ needs.dependencies.outputs.version }})
-          draft: false
-          prerelease: true
-
-  assets:
-    name: Upload release assets
-    runs-on: ubuntu-latest
-    needs: [determine-matrix, dependencies, release]
-    strategy:
-      matrix:
-        packages: ${{fromJson(needs.determine-matrix.outputs.matrix)}}
-
-    steps:
-      - name: Download build assets (${{ matrix.packages }}.pdf)
-        uses: actions/download-artifact@v2
-        with:
-          name: ctfp
-          path: ctfp
-
-      - name: Upload release assets (${{ matrix.packages }}--${{ needs.dependencies.outputs.version }}.pdf)
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ needs.release.outputs.upload_url }}
-          asset_path: ctfp/${{ matrix.packages }}.pdf
-          asset_name: ${{ matrix.packages }}--${{ needs.dependencies.outputs.version }}.pdf
-          asset_content_type: application/pdf

.github/workflows/nix-flake-check.yaml

@@ -0,0 +1,64 @@
+name: Check and build
+
+on:
+    pull_request:
+    push:
+        branches:
+            - master
+jobs:
+    dependencies:
+        name: Build dependencies
+        runs-on: ubuntu-latest
+        outputs:
+            version: ${{ steps.version.outputs.version }}
+
+        steps:
+            - name: Set up Git repository
+              uses: actions/checkout@v3
+
+            - name: Create global variables
+              id: version
+              run:
+                  echo "version=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+
+    determine-matrix:
+        name: Figure out the packages we need to build
+        runs-on: ubuntu-latest
+        needs: [dependencies]
+
+        outputs:
+            matrix: ${{ steps.set-matrix.outputs.matrix }}
+
+        steps:
+            - name: Set up Git repository
+              uses: actions/checkout@v3
+
+            - name: Install the Nix package manager
+              uses: cachix/install-nix-action@v18
+
+            - id: set-matrix
+              run: |
+                  echo "matrix=$(
+                    nix eval --json .#packages.x86_64-linux --apply builtins.attrNames
+                  )" >> $GITHUB_OUTPUT
+
+    build:
+        name: Build
+        needs: determine-matrix
+        runs-on: ubuntu-latest
+        strategy:
+            matrix:
+                packages: ${{fromJson(needs.determine-matrix.outputs.matrix)}}
+
+        steps:
+            - name: Set up Git repository
+              uses: actions/checkout@v3
+
+            - name: Install Nix
+              uses: cachix/install-nix-action@v18
+
+            - name: Nix flake check
+              run: nix flake check
+
+            - name: Build ${{ matrix.packages }}.pdf
+              run: nix build .#${{ matrix.packages }}

.github/workflows/nix-fmt-checks.yaml

@@ -0,0 +1,17 @@
+name: Nix formatter checks
+
+on:
+    pull_request:
+
+jobs:
+    format-check:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v3
+
+            - name: Install Nix
+              uses: cachix/install-nix-action@v18
+
+            - name: Run nix formatter tool
+              run: nix fmt . -- --check

.github/workflows/prettier-checks.yaml

@@ -0,0 +1,18 @@
+name: Prettier checks
+
+on:
+    pull_request:
+
+jobs:
+    prettier:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+
+            - name: Install the Nix package manager
+              uses: cachix/install-nix-action@v18
+
+            - name: Checks
+              run: nix run nixpkgs#nodePackages.prettier -- --check .

.github/workflows/release.yaml

@@ -0,0 +1,99 @@
+name: Release PDFs
+
+on:
+    push:
+        tags:
+            - "**"
+
+jobs:
+    determine-matrix:
+        name: Figure out the assets we need to build
+        runs-on: ubuntu-latest
+
+        outputs:
+            matrix: ${{ steps.set-matrix.outputs.matrix }}
+
+        steps:
+            - name: Set up Git repository
+              uses: actions/checkout@v3
+
+            - name: Install the Nix package manager
+              uses: cachix/install-nix-action@v18
+
+            - id: set-matrix
+              run: |
+                  echo "matrix=$(
+                      nix eval --json --impure \
+                      --expr 'builtins.filter (x: (null == builtins.match "(.*)-nts" x)) (builtins.attrNames (import ./.).packages.x86_64-linux)'
+                  )" >> $GITHUB_OUTPUT
+
+    build:
+        name: Build documents
+        needs: determine-matrix
+        runs-on: ubuntu-latest
+        strategy:
+            matrix:
+                packages: ${{fromJson(needs.determine-matrix.outputs.matrix)}}
+
+        steps:
+            - name: Set up Git repository
+              uses: actions/checkout@v3
+
+            - name: Install Nix
+              uses: cachix/install-nix-action@v18
+
+            - name: Build ${{ matrix.packages }}.pdf
+              run: |
+                  nix build .#${{ matrix.packages }}
+                  mkdir -p out
+                  cp -ar ./result/* out/
+
+            - name: Upload build assets (${{ matrix.packages }}.pdf)
+              uses: actions/upload-artifact@v2
+              with:
+                  name: ctfp
+                  path: out/*
+
+    release:
+        name: "Create Github pre-release"
+        runs-on: ubuntu-latest
+        needs: [build]
+        outputs:
+            upload_url: ${{ steps.create_release.outputs.upload_url }}
+        steps:
+            - name: Create Github pre-release (${{ github.ref }})
+              id: create_release
+              uses: actions/create-release@v1
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+              with:
+                  tag_name: ${{ github.ref }}
+                  release_name: ${{ github.ref }}
+                  draft: true
+
+    assets:
+        name: Upload release assets
+        runs-on: ubuntu-latest
+        needs: [determine-matrix, release]
+        strategy:
+            matrix:
+                packages: ${{fromJson(needs.determine-matrix.outputs.matrix)}}
+
+        steps:
+            - name: Download build assets (${{ matrix.packages }}.pdf)
+              uses: actions/download-artifact@v2
+              with:
+                  name: ctfp
+                  path: ctfp
+
+            - name:
+                  Upload release assets (${{ matrix.packages }}--${{ github.ref
+                  }}.pdf)
+              uses: actions/upload-release-asset@v1
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+              with:
+                  upload_url: ${{ needs.release.outputs.upload_url }}
+                  asset_path: ctfp/${{ matrix.packages }}.pdf
+                  asset_name: ${{ matrix.packages }}--${{ github.ref }}.pdf
+                  asset_content_type: application/pdf

.gitignore

@@ -1,16 +1,26 @@
-.vscode/
+/.vscode/
-*.fls
+/.direnv/
+/build/
+/result
+.DS_Store
+src/.dotty-ide-disabled
+src/.metals
+out/
 _minted*
-*.fdb_latexmk
+*.fls
 out/*
+*.fdb_latexmk
+*.bak*
+*.log
 *.pdf
 *.xdv
 *.gz
-src/version.tex
 *.pyg
 *.synctex(busy)
-src/.dotty-ide-disabled
+*.aux
-venv/*
+*.idx
-.DS_Store
+*.ilg
-src/.metals
+*.lig
-out/
+*.ind
+*.out
+*.toc

.latexindent.yaml

@@ -0,0 +1,7 @@
+defaultIndent: "  "
+verbatimEnvironments:
+    verbatim: 1
+    lstlisting: 1
+    minted: 1
+    snip: 1
+    snipv: 1

.prettierignore

@@ -0,0 +1,6 @@
+/.direnv/
+/.idea/
+/vendor/
+/docs/
+/build/
+CHANGELOG.md

.prettierrc

@@ -0,0 +1,3 @@
+{
+    "proseWrap": "always"
+}

.travis.yml

@@ -1,32 +0,0 @@
-language:
-- nix
-
-script:
-- nix-shell --pure --command 'cd src; make all'
-
-cache:
-  directories:
-    src/_minted-ctfp
-
-deploy:
-  - provider: releases
-    api_key:
-      secure: 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
-    file: out/**/*.pdf
-    file_glob: true
-    skip_cleanup: true
-    on:
-      repo: hmemcpy/milewski-ctfp-pdf
-      branch: master
-      tags: true
-  - provider: s3
-    bucket: milewski-ctfp-pdf
-    access_key_id: '$ARTIFACTS_KEY'
-    secret_access_key: '$ARTIFACTS_SECRET'
-    region: us-east-1
-    acl: public_read
-    local_dir: out
-    skip_cleanup: true
-    on:
-      all_branches: true
-      repo: hmemcpy/milewski-ctfp-pdf

Makefile

@@ -0,0 +1,31 @@
+OUTPUT ?= $(shell basename "$(shell dirname "$(INPUT)")")
+OUTPUT_DIRECTORY = $(shell pwd)/build
+LATEXMK_ARGS ?= -f -file-line-error -shell-escape -logfilewarninglist -interaction=nonstopmode -halt-on-error -norc -pdflatex="xelatex %O %S" -pdfxe
+TEXINPUTS = ""
+TEXLIVE_RUN = TEXINPUTS=$(TEXINPUTS)
+LATEXMK_COMMAND = $(TEXLIVE_RUN) latexmk $(LATEXMK_ARGS)
+
+# Make does not offer a recursive wildcard function, so here's one:
+rwildcard=$(wildcard $1$2) $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2))
+
+ctfp:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp ctfp-reader.tex
+
+ctfp-ocaml:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp-ocaml ctfp-reader-ocaml.tex
+
+ctfp-scala:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp-scala ctfp-reader-scala.tex
+
+ctfp-print:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp-print ctfp-print.tex
+
+ctfp-print-ocaml:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp-print-ocaml ctfp-print-ocaml.tex
+
+ctfp-print-scala:
+	cd src; $(LATEXMK_COMMAND) -jobname=ctfp-print-scala ctfp-print-scala.tex
+
+lint:
+	$(foreach file, $(call rwildcard,$(shell dirname "$(INPUT)"),*.tex), latexindent -l -w $(file);)
+

README.md

@@ -1,76 +1,106 @@
-Category Theory for Programmers
+![GitHub stars][github stars]
-====
+[![GitHub Workflow Status][github workflow status]][github actions link]
-![image](https://user-images.githubusercontent.com/601206/43392303-f770d7be-93fb-11e8-8db8-b7e915b435ba.png)
+[![Download][download badge]][github latest release]
-<b>Direct link: [category-theory-for-programmers.pdf](https://github.com/hmemcpy/milewski-ctfp-pdf/releases/download/v1.3.0/category-theory-for-programmers.pdf)</b>  
+[![License][license badge]][github latest release]
-(Latest release: v1.3.0, August 2019. See [releases](https://github.com/hmemcpy/milewski-ctfp-pdf/releases) for additional formats and languages.)
 
-[![Build Status](https://travis-ci.org/hmemcpy/milewski-ctfp-pdf.svg?branch=master)](https://travis-ci.org/hmemcpy/milewski-ctfp-pdf)  
+# Category Theory For Programmers
-[(latest CI build)](https://s3.amazonaws.com/milewski-ctfp-pdf/category-theory-for-programmers.pdf)
 
-<img src="https://user-images.githubusercontent.com/601206/47271389-8eea0900-d581-11e8-8e81-5b932e336336.png"
+An _unofficial_ PDF version of "**C**ategory **T**heory **F**or **P**rogrammers"
- alt="Buy Category Theory for Programmers" width=410 />  
+by [Bartosz Milewski][bartosz github], converted from his [blogpost
-**[Available in full-color hardcover print](https://www.blurb.com/b/9621951-category-theory-for-programmers-new-edition-hardco)**  
+series][blogpost series] (_with permission!_).
-Publish date: 12 August, 2019. Based off release tag [v1.3.0](https://github.com/hmemcpy/milewski-ctfp-pdf/releases/tag/v1.3.0). See [errata-1.3.0](errata-1.3.0.md) for changes and fixes since print.
 
-**[Scala Edition is now available in paperback](https://www.blurb.com/b/9603882-category-theory-for-programmers-scala-edition-pape)**  
+![Category Theory for Programmers][ctfp image]
-Publish date: 12 August, 2019. Based off release tag [v1.3.0](https://github.com/hmemcpy/milewski-ctfp-pdf/releases/tag/v1.3.0). See [errata-scala](errata-scala.md) for changes and fixes since print.
 
-This is an *unofficial* PDF version of "Category Theory for Programmers" by Bartosz Milewski, converted from his [blogpost series](https://bartoszmilewski.com/2014/10/28/category-theory-for-programmers-the-preface/) (with permission!)
+## Buy the book
 
----
+- **[Standard edition in full-color hardcover
+  print][buy regular edition on blurb]**
+  - Publish date: 12 August, 2019.
+  - Based off release tag [v1.3.0][v1.3.0 github release link]. See
+    [errata-1.3.0](errata-1.3.0.md) for changes and fixes since print.
+- **[Scala Edition in paperback][buy scala edition on blurb]**
+  - Publish date: 12 August, 2019.
+  - Based off release tag [v1.3.0][v1.3.0 github release link]. See
+    [errata-scala](errata-scala.md) for changes and fixes since print.
 
-Building
+## Build the book
---------
 
-The best way to build the book is using the [Nix](https://nixos.org/nix/) package manager. After [installing Nix](https://nixos.org/download.html), if you're using a non-NixOS operating system, you need to install `nixFlakes` in your environment following the steps below ([source](https://nixos.wiki/wiki/Flakes#Non-NixOS)):
+The building workflow requires [Nix][nix website]. After [installing
+Nix][nix download website], you need to enable the upcoming "flake" feature
+which must be [enabled manually][nixos wiki flake] the time being. This is
+needed to expose the new Nix commands and flakes support that are hidden behind
+feature-flags.
 
-```bash
+Afterwards, type `nix flake show` in the root directory of the project to see
-$ nix-env -iA nixpkgs.nixFlakes
+all the available versions of this book. Then type `nix build .#<edition>` to
-```
+build the edition you want (Haskell, Scala, OCaml, Reason and their printed
+versions). For example, to build the Scala edition you'll have to type
+`nix build .#ctfp-scala`.
 
-Edit either `~/.config/nix/nix.conf` or `/etc/nix/nix.conf` and add:
+Upon successful compilation, the PDF file will be placed in the `result`
+directory.
 
-```
+The command `nix develop` will provide a shell containing all the required
-experimental-features = nix-command flakes
+dependencies to build the book manually using the provided `Makefile`. To build
-```
+the `ctfp-scala` edition, just run `make ctfp-scala`.
 
-This is needed to expose the Nix 2.0 CLI and flakes support that are hidden behind feature-flags.
+## Contribute
 
-Also, if the Nix installation is in multi-user mode, don’t forget to restart the nix-daemon. 
+Contributors are welcome to contribute to this book by sending pull-requests.
+Once reviewed, the changes are merged in the main branch and will be
+incorporated in the next release.
 
-Afterwards, type `nix flake show` in the root directory of the project to see all the available versions of this book. Then type `nix build .#<edition>` to build the edition you want (Haskell, Scala, OCaml, Reason and their printed versions). For example, to build the Scala edition you'll have to type `nix build .#ctfp-scala`.
+**Note from [Bartosz][bartosz github]**: I really appreciate all your
+contributions. You made this book much better than I could have imagined. Thank
+you!
 
-Upon successful compilation, the PDF file will be placed in the `result` directory inside the root directory `milewski-ctfp-pdf` of the repository. 
+Find the [list of contributors on Github][contributors].
 
-The file `preamble.tex` contains all the configuration and style declarations.
+## Acknowledgements
 
-Acknowledgements
+PDF LaTeX source and the tools to create it are based on the work by [Andres
-----------------
+Raba][andres raba github]. The book content is taken, with permission, from
+[Bartosz Milewski][bartosz github]'s blogpost series, and adapted to the LaTeX
+format.
 
-PDF LaTeX source and the tools to create it are based on the work by Andres Raba et al., available here: https://github.com/sarabander/sicp-pdf.  
+The original blog post acknowledgments by Bartosz are consolidated in the
-The book content is taken, with permission, from Bartosz Milewski's blogpost series, and adapted to the LaTeX format.
+_Acknowledgments_ page at the end of the book.
 
-Thanks to the following people for contributing corrections/conversions and misc:
+## License
 
-* Oleg Rakitskiy
+The PDF book, `.tex` files, and associated images and figures in directories
-* Jared Weakly
+`src/fig` and `src/content` are licensed under [Creative Commons
-* Paolo G. Giarrusso
+Attribution-ShareAlike 4.0 International License][license cc by sa].
-* Adi Shavit
-* Mico Loretan
-* Marcello Seri
-* Erwin Maruli Tua Pakpahan
-* Markus Hauck
-* Yevheniy Zelenskyy
-* Ross Kirsling
-* ...and many others!
 
-The original blog post acknowledgments by Bartosz are consolidated in the *Acknowledgments* page at the end of the book.
+The script files `scraper.py` and others are licensed under [GNU General Public
+License version 3][license gnu gpl].
 
-**Note from Bartosz**: I really appreciate all your contributions. You made this book much better than I could have imagined. Thank you!
+[download badge]:
-
+  https://img.shields.io/badge/Download-latest-green.svg?style=flat-square
-License
+[github actions link]: https://github.com/hmemcpy/milewski-ctfp-pdf/actions
--------
+[github stars]:
-
+  https://img.shields.io/github/stars/hmemcpy/milewski-ctfp-pdf.svg?style=flat-square
-The PDF book, `.tex` files, and associated images and figures in directories `src/fig` and `src/content` are licensed under Creative Commons Attribution-ShareAlike 4.0 International License ([cc by-sa](http://creativecommons.org/licenses/by-sa/4.0/)).
+[github workflow status]:
-
+  https://img.shields.io/github/actions/workflow/status/hmemcpy/milewski-ctfp-pdf/build.yml?branch=master&style=flat-square
-The script files `scraper.py` and others are licensed under GNU General Public License version 3 (for details, see [LICENSE](https://github.com/hmemcpy/milewski-ctfp-pdf/blob/master/LICENSE)).
+[github latest release]:
+  https://github.com/hmemcpy/milewski-ctfp-pdf/releases/latest
+[license badge]:
+  https://img.shields.io/badge/License-CC_By_SA-green.svg?style=flat-square
+[ctfp image]:
+  https://user-images.githubusercontent.com/601206/47271389-8eea0900-d581-11e8-8e81-5b932e336336.png
+[bartosz github]: https://github.com/BartoszMilewski
+[nixos wiki flake]: https://nixos.wiki/wiki/Flakes
+[andres raba github]: https://github.com/sarabander
+[contributors]: https://github.com/hmemcpy/milewski-ctfp-pdf/graphs/contributors
+[license cc by sa]: https://spdx.org/licenses/CC-BY-SA-4.0.html
+[license gnu gpl]: https://spdx.org/licenses/GPL-3.0.html
+[blogpost series]:
+  https://bartoszmilewski.com/2014/10/28/category-theory-for-programmers-the-preface/
+[buy regular edition on blurb]:
+  https://www.blurb.com/b/9621951-category-theory-for-programmers-new-edition-hardco
+[buy scala edition on blurb]:
+  https://www.blurb.com/b/9603882-category-theory-for-programmers-scala-edition-pape
+[v1.3.0 github release link]:
+  https://github.com/hmemcpy/milewski-ctfp-pdf/releases/tag/v1.3.0
+[nix website]: https://nixos.org/nix/
+[nix download website]: https://nixos.org/download.html

default.nix

@@ -1,6 +0,0 @@
-let
-  rev = "cecfd08d13ddef8a79f277e67b8084bd9afa1586";
-  url = "https://github.com/edolstra/flake-compat/archive/${rev}.tar.gz";
-  flake = import (fetchTarball url) { src = ./.; };
-  inNixShell = builtins.getEnv "IN_NIX_SHELL" != "";
-in if inNixShell then flake.shellNix else flake.defaultNix

errata-1.0.0.md

@@ -2,82 +2,111 @@
 
 ### Preface
 
-* [#155](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/155) - Typo (physicist -> physicists)
+- [#155](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/155) - Typo
+  (physicist -> physicists)
 
 ### 6. Simple Algebraic Data Types
 
-* [#176](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/176) - Typo (statements -> statement)
+- [#176](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/176) - Typo
+  (statements -> statement)
 
 ### 8. Functoriality
 
-* [9a3a5a3](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/9a3a5a386e98ef8f926bccd08f572cc19b1a6367) - added clarifications on bifunctoriality vs. separate functoriality (fix by Bartosz) 
+- [9a3a5a3](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/9a3a5a386e98ef8f926bccd08f572cc19b1a6367) -
+  added clarifications on bifunctoriality vs. separate functoriality (fix by
+  Bartosz)
 
 ### 9. Function Types
 
-* [#182](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/182) - Fix typo (chose -> choose)
+- [#182](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/182) - Fix typo
+  (chose -> choose)
 
 ### 10. Natural Transformations
 
-* [#157](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/157) - Adding paragraph indent
+- [#157](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/157) - Adding
+  paragraph indent
 
 ### 12. Limits and Colimits
 
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 14. Representable Functors
 
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 18. Adjunctions
 
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling of "counit"
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling
+  of "counit"
 
 ### 19. Free/Forgetful Adjunctions
 
-* [#156](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/156) - an instance of the category name **Mon** is appearing as **arg**
+- [#156](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/156) - an instance of
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling of "isomorphism"
+  the category name **Mon** is appearing as **arg**
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling
+  of "isomorphism"
 
 ### 20. Monads - Programmer's Definition
 
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix grammatical error
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+  grammatical error
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 22. Monads Categorically
 
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 23. Comonads
 
-* [#158](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/158) - fixed incorrect typesetting of `set`
+- [#158](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/158) - fixed
-* [23f522e](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/23f522ec083c2c98f28f15935ff2893ccd1fa76c) - adjusted `Prod`/`Product` names (fix by Bartosz)
+  incorrect typesetting of `set`
+- [23f522e](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/23f522ec083c2c98f28f15935ff2893ccd1fa76c) -
+  adjusted `Prod`/`Product` names (fix by Bartosz)
 
 ### 25. Algebras for Monads
 
-* [#158](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/158) - fixed incorrect typesetting of `set`
+- [#158](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/158) - fixed
-* [#159](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/159) - fixed incorrect typesetting of category terms
+  incorrect typesetting of `set`
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling of "counit" and "morphisms", fix subscript spacing
+- [#159](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/159) - fixed
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical errors
+  incorrect typesetting of category terms
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling
+  of "counit" and "morphisms", fix subscript spacing
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical errors
 
 ### 26. Ends and Coends
 
-* [#159](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/159) - fixed incorrect typesetting of category terms
+- [#159](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/159) - fixed
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling of "coequalizer", fix subscript spacing
+  incorrect typesetting of category terms
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling
+  of "coequalizer", fix subscript spacing
 
 ### 27. Kan Extensions
 
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix subscript spacing
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix subscript
-* [31821e5](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/31821e5ded0dacf059e1fcb985be406e8a495107) - postcomposition -> precomposition (fix by Bartosz)
+  spacing
+- [31821e5](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/31821e5ded0dacf059e1fcb985be406e8a495107) -
+  postcomposition -> precomposition (fix by Bartosz)
 
 ### 28. Enriched Categories
 
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix subscript spacing
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix subscript
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+  spacing
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 29. Topoi
 
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical error
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical error
 
 ### 30. Lawvere Theories
 
-* [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling of "coequalizer"
+- [#160](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/160) - Fix spelling
-* [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix grammatical errors and a typesetting error
+  of "coequalizer"
+- [#162](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/162) - Fix
+  grammatical errors and a typesetting error

errata-1.3.0.md

@@ -1,17 +1,27 @@
 ## A list of typos/mistakes that were fixed after the release of the new edition (1.3.0) (12 August, 2019).
-(see errata for the original edition until 1.3.0 [here](https://github.com/hmemcpy/milewski-ctfp-pdf/blob/master/errata-1.0.0.md))
+
+(see errata for the original edition until 1.3.0
+[here](https://github.com/hmemcpy/milewski-ctfp-pdf/blob/master/errata-1.0.0.md))
 
 ### Preface
 
-* [#278](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/278) - Fixed reference to Saunders Mac Lane's *Categories for the Working Mathematician*. Was previously misreferenced as "*Category Theory* for the Working Mathematician."
+- [#278](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/278) - Fixed
+  reference to Saunders Mac Lane's _Categories for the Working Mathematician_.
+  Was previously misreferenced as "_Category Theory_ for the Working
+  Mathematician."
 
 ### 12. Limits and Colimits
 
-* [#278](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/278) - Fixed formatting of quotation marks around "selecting." Were previously pointing the wrong direction.
+- [#278](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/278) - Fixed
+  formatting of quotation marks around "selecting." Were previously pointing the
+  wrong direction.
+
 ### 18. Adjunctions
 
-* [#228](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/228) - Typo (adjuncion -> adjunction)
+- [#228](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/228) - Typo
+  (adjuncion -> adjunction)
 
 ### 30. Lawvere Theories
 
-* [#226](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/226) - fix type in diagram of monads as coends
+- [#226](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/226) - fix type in
+  diagram of monads as coends

errata-scala.md

@@ -2,8 +2,12 @@
 
 ### 7. Functors
 
-* [3d29cd9](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/3d29cd99f34ce1205ed9a68aeae038d9d47c7145) - Added `LazyList` example, supported since Scala 2.13
+- [3d29cd9](https://github.com/hmemcpy/milewski-ctfp-pdf/commit/3d29cd99f34ce1205ed9a68aeae038d9d47c7145) -
+  Added `LazyList` example, supported since Scala 2.13
 
-* [#210](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/210) - Section 6.4 - `prodToSum` snippet. Explicitly Tupling return type to avoid adapted args warning, which is deprecated behavior
+- [#210](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/210) - Section 6.4 -
+  `prodToSum` snippet. Explicitly Tupling return type to avoid adapted args
+  warning, which is deprecated behavior
 
-* [#243](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/243) - Section 8.7 - Change bimap to dimap in Profunctor definition
+- [#243](https://github.com/hmemcpy/milewski-ctfp-pdf/pull/243) - Section 8.7 -
+  Change bimap to dimap in Profunctor definition

flake.lock

@@ -1,40 +1,60 @@
 {
   "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1674771137,
+        "narHash": "sha256-Zpk1GbEsYrqKmuIZkx+f+8pU0qcCYJoSUwNz1Zk+R00=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "7c7a8bce3dffe71203dcd4276504d1cb49dfe05f",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-parts",
+        "type": "indirect"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1645379616,
+        "lastModified": 1675153841,
-        "narHash": "sha256-eLzR3MRS9hcNqSWZxP6BP7xiBjgC3/pB5n2Q0lLFe/g=",
+        "narHash": "sha256-EWvU3DLq+4dbJiukfhS7r6sWZyJikgXn6kNl7eHljW8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "40ef692a55b188b1f5ae3967f3fc7808838c3f1d",
+        "rev": "ea692c2ad1afd6384e171eabef4f0887d2b882d3",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-21.11",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1672350804,
+        "narHash": "sha256-jo6zkiCabUBn3ObuKXHGqqORUMH27gYDIFFfLq5P4wg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "677ed08a50931e38382dbef01cba08a8f7eac8f6",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
+        "flake-parts": "flake-parts",
-        "utils": "utils"
+        "nixpkgs": "nixpkgs"
-      }
-    },
-    "utils": {
-      "locked": {
-        "lastModified": 1644229661,
-        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
       }
     }
   },

flake.nix

@@ -1,75 +1,124 @@
 {
   description = "Category Theory for Programmers";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.11";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-  inputs.utils.url = "github:numtide/flake-utils";
 
-  outputs = { self, nixpkgs, utils }: utils.lib.eachDefaultSystem (system: let
+  outputs = inputs @ {
+    self,
+    flake-parts,
+    nixpkgs,
+  }:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      systems = [
+        "x86_64-linux"
+        "x86_64-darwin"
+        "aarch64-linux"
+        "aarch64-darwin"
+      ];
+
+      perSystem = {
+        config,
+        pkgs,
+        system,
+        ...
+      }: let
         inherit (nixpkgs) lib;
 
         pkgs = nixpkgs.legacyPackages.${system};
 
+        ###########################################################################
+        # LaTeX font
+        inconsolata-lgc-latex = pkgs.stdenvNoCC.mkDerivation {
+          name = "inconsolata-lgc-latex";
+          pname = "inconsolata-lgc-latex";
+
+          src = pkgs.inconsolata-lgc;
+
+          dontConfigure = true;
+          sourceRoot = ".";
+
+          installPhase = ''
+            runHook preInstall
+
+            find $src -name '*.ttf' -exec install -m644 -Dt $out/fonts/truetype/public/inconsolata-lgc/ {} \;
+            find $src -name '*.otf' -exec install -m644 -Dt $out/fonts/opentype/public/inconsolata-lgc/ {} \;
+
+            runHook postInstall
+          '';
+
+          tlType = "run";
+        };
+
         ###########################################################################
         # LaTeX Environment
         texliveEnv = pkgs.texlive.combine {
-      inherit (pkgs.texlive)
+          inherit
-        bookcover
+            (pkgs.texlive)
-        textpos
-        fgruler
-        tcolorbox
-        fvextra
-        framed
-        newtx
-        nowidow
-        emptypage
-        wrapfig
-        subfigure
             adjustbox
-        collectbox
+            alegreya
-        tikz-cd
-        imakeidx
-        idxlayout
-        titlesec
-        subfiles
-        lettrine
-        upquote
-        libertine
-        mweights
-        fontaxes
-        mdframed
-        needspace
-        xifthen
-        ifnextok
-        currfile
-        noindentafter
-        ifmtarg
-        scheme-medium
-        listings
-        minted
-        microtype
             babel
-        todonotes
+            bookcover
+            catchfile
             chngcntr
-        ifplatform
+            collectbox
-        xstring
+            currfile
-        minifp
+            emptypage
-        titlecaps
             enumitem
             environ
-        trimspaces
+            fgruler
-        l3packages
+            fontaxes
-        zref
+            framed
-        catchfile
+            fvextra
+            idxlayout
+            ifmtarg
+            ifnextok
+            ifplatform
+            imakeidx
             import
+            inconsolata
+            l3packages
+            lettrine
+            libertine
+            libertinus-fonts
+            listings
+            mdframed
+            microtype
+            minifp
+            minted
+            mweights
+            needspace
+            newtx
+            noindentafter
+            nowidow
+            scheme-medium
+            subfigure
+            subfiles
+            textpos
+            tcolorbox
+            tikz-cd
+            titlecaps
+            titlesec
+            todonotes
+            trimspaces
+            upquote
+            wrapfig
+            xifthen
+            xpatch
+            xstring
+            zref
             ;
+
+          inconsolata-lgc-latex = {
+            pkgs = [inconsolata-lgc-latex];
+          };
         };
 
         ###########################################################################
         # Python Environment
 
         # Pin the Python version and its associated package set in a single place.
-    python = pkgs.python38;
+        python = pkgs.python311;
-    pythonPkgs = pkgs.python38Packages;
+        pythonPkgs = pkgs.python311Packages;
 
         pygments-style-github = pythonPkgs.buildPythonPackage rec {
           pname = "pygments-style-github";
@@ -91,32 +140,34 @@
 
         commonAttrs = {
           nativeBuildInputs = [texliveEnv pythonEnv pkgs.which];
-      FONTCONFIG_FILE = pkgs.makeFontsConf {
-        fontDirectories = with pkgs; [ inconsolata-lgc libertine libertinus ];
-      };
         };
 
         mkLatex = variant: edition: let
           maybeVariant = lib.optionalString (variant != null) "-${variant}";
           maybeEdition = lib.optionalString (edition != null) "-${edition}";
-      variantStr = if variant == null then "reader" else variant;
+          variantStr =
+            if variant == null
+            then "reader"
+            else variant;
           suffix = maybeVariant + maybeEdition;
           basename = "ctfp-${variantStr}${maybeEdition}";
           version = self.shortRev or self.lastModifiedDate;
-    in pkgs.stdenv.mkDerivation (commonAttrs // {
+        in
+          pkgs.stdenv.mkDerivation (commonAttrs
+            // {
               inherit basename version;
 
-      name = "ctfp${suffix}-${version}";
+              name = "ctfp${suffix}";
               fullname = "ctfp${suffix}";
               src = "${self}/src";
 
               configurePhase = ''
-        echo -n "\\newcommand{\\OPTversion}{$version}" > version.tex
+                substituteInPlace "version.tex" --replace "dev" "${version}"
               '';
 
               buildPhase = ''
-        latexmk -shell-escape -interaction=nonstopmode -halt-on-error \
+                latexmk -file-line-error -shell-escape -logfilewarninglist -interaction=nonstopmode -halt-on-error \
-          -norc -jobname=ctfp -pdflatex="xelatex %O %S" -pdf "$basename.tex"
+                  -norc -jobname=ctfp -pdflatex="xelatex %O %S" -pdfxe "$basename.tex"
               '';
 
               installPhase = "install -m 0644 -vD ctfp.pdf \"$out/$fullname.pdf\"";
@@ -126,24 +177,27 @@
 
         editions = [null "scala" "ocaml" "reason"];
         variants = [null "print"];
-  in {
+      in rec {
-    # nix build .#ctfp
+        formatter = pkgs.alejandra;
-    # nix build .#ctfp-print
+
-    # nix build .#ctfp-print-ocaml
+        packages = lib.listToAttrs (lib.concatMap (variant:
-    # etc etc
+          map (edition: rec {
-    packages = lib.listToAttrs (lib.concatMap (variant: map (edition: rec {
             name = value.packageName;
             value = mkLatex variant edition;
-    }) editions) variants);
+          })
-
+          editions)
-    # nix build .
+        variants);
-    defaultPackage = self.packages.${system}.ctfp;
 
         # nix develop .
-    devShell = pkgs.mkShell (commonAttrs // {
+        devShells.default = pkgs.mkShellNoCC (commonAttrs
-      nativeBuildInputs = commonAttrs.nativeBuildInputs ++ [
+          // {
-        pkgs.git pkgs.gnumake
+            nativeBuildInputs =
+              commonAttrs.nativeBuildInputs
+              ++ [
+                pkgs.git
+                pkgs.gnumake
               ];
           });
-  });
+      };
+    };
 }

shell.nix

@@ -1,12 +0,0 @@
-(import
-  (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
-    fetchTarball {
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
-  )
-  {
-    src = ./.;
-  }
-).shellNix

src/.gitignore

@@ -1,17 +0,0 @@
-*.aux
-*.cp*
-*.fn
-*.ky
-*.log
-*.pg
-*.toc
-*.tp
-*.vr
-*.vim
-*.idx
-*.ilg
-*.ind
-*.out
-*.swp
-*~
-ctfp.fdb_latexmk

src/Makefile

@@ -1,85 +0,0 @@
-# Igal Tabachnik, 2007.
-# Based on work by Andres Raba et al., 2013-2015.
-
-.PHONY: default all clean out-dir version.tex scala ocaml reason
-
-DIR := $(shell pwd)
-GIT_VER := $(shell git describe --tags --always --long | tr -d '\n')
-OUTPUT_DIR := ../out
-
-OUTPUT = category-theory-for-programmers
-
-# Default top-level LaTeX to generate
-DEFAULTTOPTEX = ctfp-reader.tex ctfp-print.tex
-
-SCALATEXFILES = ctfp-reader-scala.tex ctfp-print-scala.tex # todo make this a macro
-
-OCAMLTEXFILES = ctfp-reader-ocaml.tex ctfp-print-ocaml.tex # todo make this a macro
-
-REASONTEXFILES = ctfp-reader-reason.tex ctfp-print-reason.tex # todo make this a macro
-
-# Top-level LaTeX files from which CTFP book can be generated
-TOPTEXFILES = version.tex $(DEFAULTTOPTEX) $(SCALATEXFILES) $(OCAMLTEXFILES) $(REASONTEXFILES)
-
-# Default PDF file to make
-DEFAULTPDF:=$(DEFAULTTOPTEX:.tex=.pdf)
-
-# Scala PDF file to make
-SCALAPDF:=$(SCALATEXFILES:.tex=.pdf)
-
-# OCaml PDF file to make
-OCAMLPDF:=$(OCAMLTEXFILES:.tex=.pdf)
-
-# ReasonML PDF file to make
-REASONPDF:=$(REASONTEXFILES:.tex=.pdf)
-
-# Other PDF files for the CTFP book
-TOPPDFFILES:=$(TOPTEXFILES:.tex=.pdf)
-
-# Configuration files
-OPTFILES = opt-print-ustrade.tex \
-			opt-reader-10in.tex \
-			opt-scala.tex
-
-# All the LaTeX files for the CTFP book in order of dependency
-TEXFILES = $(TOPTEXFILES) $(SCALATEXFILES) $(OCAMLTEXFILES) $(REASONTEXFILES) $(OPTFILES)
-
-default: suffix=''
-default: out-dir $(DEFAULTPDF) # todo cover
-
-all: clean default scala ocaml reason
-
-scala: suffix='-scala'
-scala: clean out-dir version.tex $(SCALAPDF)
-
-ocaml: suffix='-ocaml'
-ocaml: clean out-dir version.tex $(OCAMLPDF)
-
-reason: suffix='-reason'
-reason: clean out-dir version.tex $(REASONPDF)
-
-# Main targets
-$(TOPPDFFILES) : %.pdf : %.tex $(TEXFILES)
-	if which latexmk > /dev/null 2>&1 ;\
-	then \
-		latexmk -shell-escape -interaction=nonstopmode -halt-on-error -norc -jobname=ctfp -pdflatex="xelatex %O %S" -pdf $< ;\
-		mv ctfp.pdf $(OUTPUT_DIR)/$(subst ctfp,$(OUTPUT),$(subst ctfp-reader,$(OUTPUT),$*)).pdf ;\
-	else @printf "Error: unable to find latexmk. Is it installed?\n" ;\
-	fi
-
-version.tex:
-	@printf '\\newcommand{\\OPTversion}{' > version.tex
-	@printf $(GIT_VER) >> version.tex
-	@printf '}' >> version.tex
-
-out-dir:
-	@printf 'Creating output directory: $(OUTPUT_DIR)\n'
-	mkdir -p $(OUTPUT_DIR)
-
-clean:
-	rm -f *~ *.aux {ctfp-*}.{out,log,pdf,dvi,fls,fdb_latexmk,aux,brf,bbl,idx,ilg,ind,toc,sed}
-	if which latexmk > /dev/null 2>&1 ; then latexmk -CA; fi
-	rm -rf ../out
-
-clean-minted:
-	rm -rf _minted-*

src/cover/cover-hardcover-ocaml.tex

@@ -13,18 +13,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-  
+  \usepackage{Alegreya}
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/cover/cover-hardcover-reason.tex

@@ -13,18 +13,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-  
+  \usepackage{Alegreya}
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/cover/cover-hardcover-scala.tex

@@ -13,18 +13,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-
+  \usepackage{Alegreya}
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/cover/cover-paperback-ocaml.tex

@@ -14,26 +14,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-
+  \usepackage{Alegreya}
-  % \setmainfont{AlegreyaSans-Regular}[
-  %   BoldFont={AlegreyaSans-Bold},
-  %   ItalicFont={AlegreyaSans-Italic},
-  %   UprightFeatures={SmallCapsFont=AlegreyaSansSC-Regular},
-  %   ItalicFeatures={SmallCapsFont=AlegreyaSansSC-Italic},
-  %   BoldFeatures={SmallCapsFont=AlegreyaSansSC-Bold},
-  %   BoldItalicFeatures={SmallCapsFont=AlegreyaSansSC-BoldItalic},
-  % ]
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/cover/cover-paperback-reason.tex

@@ -14,26 +14,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-
+  \usepackage{Alegreya}
-  % \setmainfont{AlegreyaSans-Regular}[
-  %   BoldFont={AlegreyaSans-Bold},
-  %   ItalicFont={AlegreyaSans-Italic},
-  %   UprightFeatures={SmallCapsFont=AlegreyaSansSC-Regular},
-  %   ItalicFeatures={SmallCapsFont=AlegreyaSansSC-Italic},
-  %   BoldFeatures={SmallCapsFont=AlegreyaSansSC-Bold},
-  %   BoldItalicFeatures={SmallCapsFont=AlegreyaSansSC-BoldItalic},
-  % ]
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/cover/cover-paperback-scala.tex

@@ -14,18 +14,7 @@
   \usetikzlibrary{calc,positioning, shadings}
   \usepackage[T1]{fontenc}
   \usepackage{fontspec}
-
+  \usepackage{Alegreya}
-  \setmainfont[
-    Path=fonts/,
-    Extension=.otf,
-    UprightFont=*-Regular,
-    ItalicFont=*-Italic,
-    BoldFont=*-Bold,
-    UprightFeatures={SmallCapsFont=*SC-Regular},
-    ItalicFeatures={SmallCapsFont=*SC-Italic},
-    BoldFeatures={SmallCapsFont=*SC-Bold},
-    BoldItalicFeatures={SmallCapsFont=*SC-BoldItalic},
-    ]{AlegreyaSans}
 
   \newcommand{\olpath}{../}
   \newcommand{\whitebg}[1]{%

src/preamble.tex

@@ -23,7 +23,7 @@
 \defaultfontfeatures{%                                         %  is important for
   Scale=MatchLowercase, % needed here ...                      %  single quotes not
 }                                                              %  to turn out curly
-\setmonofont[Path=fonts/, BoldFont=Inconsolata-LGC-Bold.ttf]{Inconsolata-LGC-Bold.ttf} %  ("typographic")
+\setmonofont[BoldFont=Inconsolata-LGC-Bold.ttf]{Inconsolata-LGC-Bold.ttf} %  ("typographic")
                                                                %  in verbatim blocks
 \defaultfontfeatures{%                                         %  of Haskell code.
   Scale=MatchLowercase, % ... and here again                   %  Now the quote is
@@ -43,7 +43,7 @@
 \expandafter\let\csname not<\endcsname\relax
 \expandafter\let\csname not>\endcsname\relax
 \usepackage{unicode-math}
-\setmathfont[Path=fonts/]{LibertinusMath-Regular.otf}
+\setmathfont{LibertinusMath-Regular.otf}
 
 \usepackage[all]{nowidow}
 \usepackage{emptypage}
@@ -170,6 +170,16 @@
 {\end{Verbatim}\end{mdframed}
 \vspace{-1ex}}
 
+% See the context about this workaround at
+% https://github.com/gpoore/minted/issues/354
+\makeatletter
+\ifwindows
+  \def\minted@opt@quote#1{\detokenize\expandafter{\expandafter"\expanded{#1}"}}
+\else
+  \def\minted@opt@quote#1{\detokenize\expandafter{\expandafter'\expanded{#1}'}}
+\fi
+\makeatother
+
 \NewDocumentCommand\src{mO{}}{
   \srcsnippet{\currfileabsdir/code/haskell/#1.hs}{blue}{haskell}{#2}
   \ifdefined\OPTCustomLanguage{%

src/version.tex

@@ -0,0 +1 @@
+\newcommand\OPTversion{dev}