Merge commit '4e60699fa727e4a0f9a3e78948012f86da32cfef'

4 files changed, 1773 insertions, 0 deletions

diff --git a/nixpkgs/pkgs/development/tools/diesel-cli/allow-warnings.patch b/nixpkgs/pkgs/development/tools/diesel-cli/allow-warnings.patch
new file mode 100644
index 000000000000..342ac1baa102
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/diesel-cli/allow-warnings.patch
@@ -0,0 +1,88 @@
+diff --git a/diesel/src/lib.rs b/diesel/src/lib.rs
+index 4e743eb4..97c53ed8 100644
+--- a/diesel/src/lib.rs
++++ b/diesel/src/lib.rs
+@@ -131,7 +131,6 @@
+ #![cfg_attr(feature = "unstable", feature(specialization, try_from))]
+ // Built-in Lints
+ #![deny(
+-    warnings,
+     missing_debug_implementations,
+     missing_copy_implementations,
+     missing_docs
+diff --git a/diesel_cli/src/main.rs b/diesel_cli/src/main.rs
+index 741ca003..cf93bb8f 100644
+--- a/diesel_cli/src/main.rs
++++ b/diesel_cli/src/main.rs
+@@ -1,5 +1,5 @@
+ // Built-in Lints
+-#![deny(warnings, missing_copy_implementations)]
++#![deny(missing_copy_implementations)]
+ // Clippy lints
+ #![allow(clippy::option_map_unwrap_or_else, clippy::option_map_unwrap_or)]
+ #![warn(
+diff --git a/diesel_cli/tests/tests.rs b/diesel_cli/tests/tests.rs
+index 2edee846..c96917c4 100644
+--- a/diesel_cli/tests/tests.rs
++++ b/diesel_cli/tests/tests.rs
+@@ -1,5 +1,3 @@
+-#![deny(warnings)]
+-
+ extern crate chrono;
+ extern crate diesel;
+ #[macro_use]
+diff --git a/diesel_derives/src/lib.rs b/diesel_derives/src/lib.rs
+index 2c43b2a3..44dcf3f9 100644
+--- a/diesel_derives/src/lib.rs
++++ b/diesel_derives/src/lib.rs
+@@ -1,6 +1,6 @@
+ #![recursion_limit = "1024"]
+ // Built-in Lints
+-#![deny(warnings, missing_copy_implementations)]
++#![deny(missing_copy_implementations)]
+ // Clippy lints
+ #![allow(
+     clippy::needless_pass_by_value,
+diff --git a/diesel_derives/tests/tests.rs b/diesel_derives/tests/tests.rs
+index 636fea66..f86f3dcc 100644
+--- a/diesel_derives/tests/tests.rs
++++ b/diesel_derives/tests/tests.rs
+@@ -1,5 +1,3 @@
+-#![deny(warnings)]
+-
+ #[macro_use]
+ extern crate cfg_if;
+ #[macro_use]
+diff --git a/diesel_migrations/migrations_internals/src/lib.rs b/diesel_migrations/migrations_internals/src/lib.rs
+index 933e21a8..7c4d0222 100644
+--- a/diesel_migrations/migrations_internals/src/lib.rs
++++ b/diesel_migrations/migrations_internals/src/lib.rs
+@@ -1,5 +1,5 @@
+ // Built-in Lints
+-#![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
++#![deny(missing_debug_implementations, missing_copy_implementations)]
+ // Clippy lints
+ #![allow(
+     clippy::option_map_unwrap_or_else,
+diff --git a/diesel_migrations/migrations_macros/src/lib.rs b/diesel_migrations/migrations_macros/src/lib.rs
+index 0a83234e..2f509c04 100644
+--- a/diesel_migrations/migrations_macros/src/lib.rs
++++ b/diesel_migrations/migrations_macros/src/lib.rs
+@@ -1,5 +1,5 @@
+ // Built-in Lints
+-#![deny(warnings, missing_debug_implementations, missing_copy_implementations)]
++#![deny(missing_debug_implementations, missing_copy_implementations)]
+ // Clippy lints
+ #![allow(
+     clippy::option_map_unwrap_or_else,
+diff --git a/diesel_migrations/src/lib.rs b/diesel_migrations/src/lib.rs
+index c85414e5..f025f237 100644
+--- a/diesel_migrations/src/lib.rs
++++ b/diesel_migrations/src/lib.rs
+@@ -1,5 +1,5 @@
+ // Built-in Lints
+-#![deny(warnings, missing_copy_implementations)]
++#![deny(missing_copy_implementations)]
+ // Clippy lints
+ #![allow(
+     clippy::needless_pass_by_value,
diff --git a/nixpkgs/pkgs/development/tools/diesel-cli/cargo-lock.patch b/nixpkgs/pkgs/development/tools/diesel-cli/cargo-lock.patch
new file mode 100644
index 000000000000..26d583f9a11d
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/diesel-cli/cargo-lock.patch
@@ -0,0 +1,1589 @@
+diff --git a/Cargo.lock b/Cargo.lock
+new file mode 100644
+index 0000000..f20a5bf
+--- /dev/null
++++ b/Cargo.lock
+@@ -0,0 +1,1583 @@
++# This file is automatically @generated by Cargo.
++# It is not intended for manual editing.
++[[package]]
++name = "advanced-blog-cli"
++version = "0.1.0"
++dependencies = [
++ "assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "bcrypt 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel_migrations 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "structopt 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
++ "structopt-derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "aho-corasick"
++version = "0.5.3"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "aho-corasick"
++version = "0.6.10"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "all_about_inserts"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "all_about_inserts_mysql"
++version = "0.1.0"
++dependencies = [
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "all_about_inserts_sqlite"
++version = "0.1.0"
++dependencies = [
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_derive 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "all_about_updates"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "ansi_term"
++version = "0.11.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "assert_matches"
++version = "1.3.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "atty"
++version = "0.2.13"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
++ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "autocfg"
++version = "0.1.6"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "backtrace"
++version = "0.3.35"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
++ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
++ "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "backtrace-sys"
++version = "0.1.31"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "cc 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "barrel"
++version = "0.2.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "base64"
++version = "0.9.3"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "safemem 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "bcrypt"
++version = "0.1.6"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
++ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "bigdecimal"
++version = "0.0.14"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "num-bigint 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "bitflags"
++version = "1.1.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "bumpalo"
++version = "2.6.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "byteorder"
++version = "1.3.2"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "c2-chacha"
++version = "0.2.2"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "cc"
++version = "1.0.41"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "cfg-if"
++version = "0.1.9"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++
++[[package]]
++name = "chrono"
++version = "0.4.8"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "js-sys 0.3.27 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
++ "wasm-bindgen 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "clap"
++version = "2.33.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
++ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "cloudabi"
++version = "0.0.3"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "derive-error-chain"
++version = "0.10.1"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
++ "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel"
++version = "1.4.0"
++dependencies = [
++ "bigdecimal 0.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
++ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel_derives 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++ "ipnetwork 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libsqlite3-sys 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "mysqlclient-sys 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-bigint 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
++ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "pq-sys 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "quickcheck 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
++ "r2d2 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde_json 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
++ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
++ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
++ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "uuid 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
++ "uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel"
++version = "1.4.2"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++dependencies = [
++ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel_derives 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libsqlite3-sys 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "mysqlclient-sys 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
++ "pq-sys 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
++ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_cli"
++version = "1.4.0"
++dependencies = [
++ "barrel 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "chrono 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
++ "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "difference 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++ "libsqlite3-sys 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "migrations_internals 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "regex 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
++ "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
++ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
++ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
++ "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
++ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_1_mysql"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_1_pg"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_1_sqlite"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_2_mysql"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_2_pg"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_2_sqlite"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_3_mysql"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_3_pg"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_demo_step_3_sqlite"
++version = "0.1.0"
++dependencies = [
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
++]
++
++[[package]]
++name = "diesel_derives"
++version = "1.4.0"
++dependencies = [
++ "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
++ "diesel 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
++ "dotenv 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
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++"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
++"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
++"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
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++"checksum unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "141339a08b982d942be2ca06ff8b076563cbe223d1befd5450716790d44e2426"
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diff --git a/nixpkgs/pkgs/development/tools/diesel-cli/default.nix b/nixpkgs/pkgs/development/tools/diesel-cli/default.nix
new file mode 100644
index 000000000000..f6a67b051146
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/diesel-cli/default.nix
@@ -0,0 +1,77 @@
+{ stdenv, lib, rustPlatform, fetchFromGitHub, openssl, pkgconfig, Security
+, sqliteSupport ? true, sqlite
+, postgresqlSupport ? true, postgresql
+, mysqlSupport ? true, mysql, zlib, libiconv
+}:
+
+assert lib.assertMsg (sqliteSupport == true || postgresqlSupport == true || mysqlSupport == true)
+  "support for at least one database must be enabled";
+
+let
+  inherit (stdenv.lib) optional optionals optionalString;
+  features = ''
+    ${optionalString sqliteSupport "sqlite"} \
+    ${optionalString postgresqlSupport "postgres"} \
+    ${optionalString mysqlSupport "mysql"} \
+  '';
+in
+
+rustPlatform.buildRustPackage rec {
+  pname = "diesel-cli";
+  version = "1.4.0";
+
+  src = fetchFromGitHub {
+    owner = "diesel-rs";
+    repo = "diesel";
+    rev = "v${version}";
+    sha256 = "0wp4hvpl9cf8hw1jyz3z476k5blrh6srfpv36dw10bj126rz9pvb";
+  };
+
+  patches = [
+    # Allow warnings to fix many instances of `error: trait objects without an explicit `dyn` are deprecated`
+    #
+    # Remove this after https://github.com/diesel-rs/diesel/commit/9004d1c3fa12aaee84986bd3d893002491373f8c
+    # is in a release.
+    ./allow-warnings.patch
+  ];
+
+  cargoBuildFlags = [ "--no-default-features --features \"${features}\"" ];
+  cargoPatches = [ ./cargo-lock.patch ];
+  cargoSha256 = "0xlcskddhy7xsiwj54gmn1xlgkfxb4dwrys7rbamfz1h8aa6ixjx";
+
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ openssl ]
+    ++ optional stdenv.isDarwin Security
+    ++ optional (stdenv.isDarwin && mysqlSupport) libiconv
+    ++ optional sqliteSupport sqlite
+    ++ optional postgresqlSupport postgresql
+    ++ optionals mysqlSupport [ mysql zlib ];
+
+  # We must `cd diesel_cli`, we cannot use `--package diesel_cli` to build
+  # because --features fails to apply to the package:
+  # https://github.com/rust-lang/cargo/issues/5015
+  # https://github.com/rust-lang/cargo/issues/4753
+  preBuild = "cd diesel_cli";
+  postBuild = "cd ..";
+
+  checkPhase = optionalString sqliteSupport ''
+    (cd diesel_cli && cargo check --features sqlite)
+  '';
+
+  doInstallCheck = true;
+  installCheckPhase = ''
+    $out/bin/diesel --version
+  '';
+
+  # Fix the build with mariadb, which otherwise shows "error adding symbols:
+  # DSO missing from command line" errors for libz and libssl.
+  NIX_LDFLAGS = lib.optional mysqlSupport "-lz -lssl -lcrypto";
+
+  meta = with lib; {
+    description = "Database tool for working with Rust projects that use Diesel";
+    homepage = https://github.com/diesel-rs/diesel/tree/master/diesel_cli;
+    license = with licenses; [ mit asl20 ];
+    platforms = platforms.all;
+    maintainers = with maintainers; [ ivan ];
+  };
+}
diff --git a/nixpkgs/pkgs/development/tools/diesel-cli/update-cargo-lock.sh b/nixpkgs/pkgs/development/tools/diesel-cli/update-cargo-lock.sh
new file mode 100755
index 000000000000..bd2e033e6871
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/diesel-cli/update-cargo-lock.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# This updates cargo-lock.patch for the diesel version listed in default.nix.
+
+set -eu -o verbose
+
+here=$PWD
+version=$(cat default.nix | grep '^  version = "' | cut -d '"' -f 2)
+checkout=$(mktemp -d)
+git clone -b "v$version" --depth=1 https://github.com/diesel-rs/diesel "$checkout"
+cd "$checkout"
+
+rm -f rust-toolchain
+cargo generate-lockfile
+git add -f Cargo.lock
+git diff HEAD -- Cargo.lock > "$here"/cargo-lock.patch
+
+cd "$here"
+rm -rf "$checkout"