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Update build process to use prebuilt bindings.

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Adds buildtime_bindgen feature to run bindgen dynamically.
This commit is contained in:
John Gallagher 2017-03-03 14:57:40 -05:00
parent 9510e25ef3
commit 06383c65cb
3 changed files with 182 additions and 118 deletions
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9
Cargo.toml
View File

@ -19,11 +19,12 @@ name = "rusqlite"
[features]
load_extension = []
backup = []
blob = []
functions = []
trace = []
backup = ["libsqlite3-sys/min_sqlite_version_3_6_11"]
blob = ["libsqlite3-sys/min_sqlite_version_3_7_4"]
functions = ["libsqlite3-sys/min_sqlite_version_3_7_3"]
trace = ["libsqlite3-sys/min_sqlite_version_3_6_23"]
bundled = ["libsqlite3-sys/bundled"]
buildtime_bindgen = ["libsqlite3-sys/buildtime_bindgen"]
limits = []
[dependencies]

15
libsqlite3-sys/Cargo.toml
View File

@ -11,9 +11,16 @@ keywords = ["sqlite", "database", "ffi"]
categories = ["database", "external-ffi-bindings"]
[features]
bundled = []
default = ["min_sqlite_version_3_6_8"]
bundled = ["gcc"]
buildtime_bindgen = ["bindgen", "pkg-config"]
min_sqlite_version_3_6_8 = ["pkg-config"]
min_sqlite_version_3_6_11 = ["pkg-config"]
min_sqlite_version_3_6_23 = ["pkg-config"]
min_sqlite_version_3_7_3 = ["pkg-config"]
min_sqlite_version_3_7_4 = ["pkg-config"]
[build-dependencies]
bindgen = "0.21"
pkg-config = "0.3"
gcc = "0.3"
bindgen = { version = "0.21", optional = true }
pkg-config = { version = "0.3", optional = true }
gcc = { version = "0.3", optional = true }

202
libsqlite3-sys/build.rs
View File

@ -1,17 +1,133 @@
extern crate bindgen;
extern crate gcc;
extern crate pkg_config;
fn main() {
build::main();
}
use std::env;
use std::io::Write;
use std::fs::OpenOptions;
use bindgen::chooser::{TypeChooser, IntKind};
use std::path::Path;
#[cfg(feature = "bundled")]
mod build {
extern crate gcc;
use std::{env, fs};
use std::path::Path;
#[derive(Debug)]
struct SqliteTypeChooser;
pub fn main() {
let out_dir = env::var("OUT_DIR").unwrap();
let out_path = Path::new(&out_dir).join("bindgen.rs");
fs::copy("sqlite3/bindgen_bundled_version.rs", out_path)
.expect("Could not copy bindings to output directory");
impl TypeChooser for SqliteTypeChooser {
gcc::Config::new()
.file("sqlite3/sqlite3.c")
.flag("-DSQLITE_CORE")
.flag("-DSQLITE_DEFAULT_FOREIGN_KEYS=1")
.flag("-DSQLITE_ENABLE_API_ARMOR")
.flag("-DSQLITE_ENABLE_COLUMN_METADATA")
.flag("-DSQLITE_ENABLE_DBSTAT_VTAB")
.flag("-DSQLITE_ENABLE_FTS3")
.flag("-DSQLITE_ENABLE_FTS3_PARENTHESIS")
.flag("-DSQLITE_ENABLE_FTS5")
.flag("-DSQLITE_ENABLE_JSON1")
.flag("-DSQLITE_ENABLE_LOAD_EXTENSION=1")
.flag("-DSQLITE_ENABLE_MEMORY_MANAGEMENT")
.flag("-DSQLITE_ENABLE_RTREE")
.flag("-DSQLITE_ENABLE_STAT2")
.flag("-DSQLITE_ENABLE_STAT4")
.flag("-DSQLITE_HAVE_ISNAN")
.flag("-DSQLITE_SOUNDEX")
.flag("-DSQLITE_THREADSAFE=1")
.flag("-DSQLITE_USE_URI")
.compile("libsqlite3.a");
}
}
#[cfg(not(feature = "bundled"))]
mod build {
extern crate pkg_config;
use std::env;
pub fn main() {
let header = find_sqlite();
bindings::write_to_out_dir(header);
}
// Prints the necessary cargo link commands and returns the path to the header.
fn find_sqlite() -> String {
// Allow users to specify where to find SQLite.
if let Ok(dir) = env::var("SQLITE3_LIB_DIR") {
let mut header = env::var("SQLITE3_INCLUDE_DIR")
.expect("SQLITE3_INCLUDE_DIR must be set if SQLITE3_LIB_DIR is set");
header.push_str("/sqlite3.h");
//run_bindgen(header);
println!("cargo:rustc-link-lib=sqlite3");
println!("cargo:rustc-link-search={}", dir);
return header;
}
// See if pkg-config can do everything for us.
match pkg_config::Config::new().print_system_libs(false).probe("sqlite3") {
Ok(mut lib) => {
if let Some(mut header) = lib.include_paths.pop() {
header.push("sqlite3.h");
header.to_string_lossy().into()
} else {
"wrapper.h".into()
}
}
Err(_) => {
// No env var set and pkg-config couldn't help; just output the link-lib
// request and hope that the library exists on the system paths. We used to
// output /usr/lib explicitly, but that can introduce other linking problems; see
// https://github.com/jgallagher/rusqlite/issues/207.
println!("cargo:rustc-link-lib=sqlite3");
"wrapper.h".into()
}
}
}
#[cfg(not(feature = "buildtime_bindgen"))]
mod bindings {
use std::{env, fs};
use std::path::Path;
#[cfg_attr(rustfmt, rustfmt_skip)]
static PREBUILT_BINDGEN_PATHS: &'static [&'static str] = &[
"bindgen-bindings/bindgen_3.6.8.rs",
#[cfg(feature = "min_sqlite_version_3_6_11")]
"bindgen-bindings/bindgen_3.6.11.rs",
#[cfg(feature = "min_sqlite_version_3_6_23")]
"bindgen-bindings/bindgen_3.6.23.rs",
#[cfg(feature = "min_sqlite_version_3_7_3")]
"bindgen-bindings/bindgen_3.7.3.rs",
#[cfg(feature = "min_sqlite_version_3_7_4")]
"bindgen-bindings/bindgen_3.7.4.rs",
];
pub fn write_to_out_dir(_header: String) {
let out_dir = env::var("OUT_DIR").unwrap();
let out_path = Path::new(&out_dir).join("bindgen.rs");
let in_path = PREBUILT_BINDGEN_PATHS[PREBUILT_BINDGEN_PATHS.len() - 1];
fs::copy(in_path, out_path).expect("Could not copy bindings to output directory");
}
}
#[cfg(feature = "buildtime_bindgen")]
mod bindings {
extern crate bindgen;
use self::bindgen::chooser::{TypeChooser, IntKind};
use std::env;
use std::io::Write;
use std::fs::OpenOptions;
use std::path::Path;
#[derive(Debug)]
struct SqliteTypeChooser;
impl TypeChooser for SqliteTypeChooser {
fn int_macro(&self, _name: &str, value: i64) -> Option<IntKind> {
if value >= i32::min_value() as i64 && value <= i32::max_value() as i64 {
Some(IntKind::I32)
@ -19,11 +135,10 @@ impl TypeChooser for SqliteTypeChooser {
None
}
}
}
}
fn run_bindgen<T: Into<String>>(header: T) {
pub fn write_to_out_dir(header: String) {
let out_dir = env::var("OUT_DIR").unwrap();
let header = header.into();
let mut output = Vec::new();
bindgen::builder()
.header(header.clone())
@ -52,65 +167,6 @@ fn run_bindgen<T: Into<String>>(header: T) {
.expect(&format!("Could not write to {:?}", path));
file.write_all(output.as_bytes()).expect(&format!("Could not write to {:?}", path));
}
#[cfg(not(feature = "bundled"))]
fn main() {
// Allow users to specify where to find SQLite.
if let Ok(dir) = env::var("SQLITE3_LIB_DIR") {
let mut header = env::var("SQLITE3_INCLUDE_DIR")
.expect("SQLITE3_INCLUDE_DIR must be set if SQLITE3_LIB_DIR is set");
header.push_str("/sqlite3.h");
run_bindgen(header);
println!("cargo:rustc-link-lib=sqlite3");
println!("cargo:rustc-link-search={}", dir);
return;
}
// See if pkg-config can do everything for us.
match pkg_config::Config::new().print_system_libs(false).probe("sqlite3") {
Ok(mut lib) => {
if let Some(mut header) = lib.include_paths.pop() {
header.push("sqlite3.h");
run_bindgen(header.to_string_lossy());
} else {
run_bindgen("wrapper.h");
}
}
Err(_) => {
// No env var set and pkg-config couldn't help; just output the link-lib
// request and hope that the library exists on the system paths. We used to
// output /usr/lib explicitly, but that can introduce other linking problems; see
// https://github.com/jgallagher/rusqlite/issues/207.
println!("cargo:rustc-link-lib=sqlite3");
run_bindgen("wrapper.h");
}
}
}
#[cfg(feature = "bundled")]
fn main() {
run_bindgen("sqlite3/sqlite3.h");
gcc::Config::new()
.file("sqlite3/sqlite3.c")
.flag("-DSQLITE_CORE")
.flag("-DSQLITE_DEFAULT_FOREIGN_KEYS=1")
.flag("-DSQLITE_ENABLE_API_ARMOR")
.flag("-DSQLITE_ENABLE_COLUMN_METADATA")
.flag("-DSQLITE_ENABLE_DBSTAT_VTAB")
.flag("-DSQLITE_ENABLE_FTS3")
.flag("-DSQLITE_ENABLE_FTS3_PARENTHESIS")
.flag("-DSQLITE_ENABLE_FTS5")
.flag("-DSQLITE_ENABLE_JSON1")
.flag("-DSQLITE_ENABLE_LOAD_EXTENSION=1")
.flag("-DSQLITE_ENABLE_MEMORY_MANAGEMENT")
.flag("-DSQLITE_ENABLE_RTREE")
.flag("-DSQLITE_ENABLE_STAT2")
.flag("-DSQLITE_ENABLE_STAT4")
.flag("-DSQLITE_HAVE_ISNAN")
.flag("-DSQLITE_SOUNDEX")
.flag("-DSQLITE_THREADSAFE=1")
.flag("-DSQLITE_USE_URI")
.compile("libsqlite3.a");
}