2015-02-12 8 views
5

Domanda: Come posso aggirare (o correggere) la situazione in cui due mie dipendenze si collegano alla stessa libreria, ma quella libreria non può essere collegata due volte? Questo sembra qualcosa che normalmente sarebbe risolto con una libreria condivisa, ma non sono sicuro di come affrontarlo con Rust.Come impedire il collegamento alla stessa libreria nativa da più dipendenze?

Dettagli:

sto facendo una web app di Rust utilizzando il Nickel framework e rust-postgres per un database. Ottengo il seguente errore quando si costruisce:

> cargo build 
native library `openssl` is being linked to by more than one package, and can only be linked to by one package 

    openssl-sys v0.3.3 (https://github.com/sfackler/rust-openssl.git#ee66da60) 
    openssl-sys v0.3.3 

Guardando attraverso Cargo.lock, OpenSSL è riferito da http (che è una dipendenza di nichel) e ruggine Postgres.

mio Cargo.toml si presenta così:

[package] 

name = "goodoldweb" 
version = "0.0.1" 
authors = ["..."] 

[dependencies.nickel] 
git="https://github.com/nickel-org/nickel.rs.git" 

[dependencies.postgres] 
git="https://github.com/sfackler/rust-postgres.git" 

Ecco il Cargo.lock completo:

[root] 
name = "goodoldweb" 
version = "0.0.1" 
dependencies = [ 
"nickel 0.1.0 (git+https://github.com/nickel-org/nickel.rs.git)", 
"postgres 0.6.1 (git+https://github.com/sfackler/rust-postgres.git)", 
] 

[[package]] 
name = "byteorder" 
version = "0.2.4" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "gcc" 
version = "0.1.7" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "groupable" 
version = "0.1.0" 
source = "git+https://github.com/nickel-org/groupable-rs#efc8d769f611558f086322cd8d2d5ff53314e435" 

[[package]] 
name = "http" 
version = "0.1.0-pre" 
source = "git+https://github.com/nickel-org/rust-http.git#1997192b7662ee5bf3bf381bfd9e2aa70f85a545" 
dependencies = [ 
"openssl 0.3.3 (git+https://github.com/sfackler/rust-openssl.git)", 
"time 0.1.17 (git+https://github.com/rust-lang/time)", 
"url 0.2.18 (git+https://github.com/nickel-org/rust-url.git)", 
] 

[[package]] 
name = "libc" 
version = "0.1.2" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "libressl-pnacl-sys" 
version = "2.1.4" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"pnacl-build-helper 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "log" 
version = "0.2.3" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "matches" 
version = "0.1.2" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "nickel" 
version = "0.1.0" 
source = "git+https://github.com/nickel-org/nickel.rs.git#8c2e6a9bdbce0a3ec53d559b86f5060ee1ea6c29" 
dependencies = [ 
"groupable 0.1.0 (git+https://github.com/nickel-org/groupable-rs)", 
"http 0.1.0-pre (git+https://github.com/nickel-org/rust-http.git)", 
"log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", 
"nickel_macros 0.0.1 (git+https://github.com/nickel-org/nickel.rs.git)", 
"plugin 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)", 
"regex 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)", 
"regex_macros 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)", 
"rust-mustache 0.3.0 (git+https://github.com/nickel-org/rust-mustache.git)", 
"rustc-serialize 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)", 
"time 0.1.17 (git+https://github.com/rust-lang/time)", 
"typemap 0.0.8 (registry+https://github.com/rust-lang/crates.io-index)", 
"url 0.2.18 (git+https://github.com/nickel-org/rust-url.git)", 
] 

[[package]] 
name = "nickel_macros" 
version = "0.0.1" 
source = "git+https://github.com/nickel-org/nickel.rs.git#8c2e6a9bdbce0a3ec53d559b86f5060ee1ea6c29" 

[[package]] 
name = "openssl" 
version = "0.3.3" 
source = "git+https://github.com/sfackler/rust-openssl.git#ee66da6060c57bc86906261ee3d684fac1fd05e4" 
dependencies = [ 
"openssl-sys 0.3.3 (git+https://github.com/sfackler/rust-openssl.git)", 
] 

[[package]] 
name = "openssl" 
version = "0.3.3" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"openssl-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "openssl-sys" 
version = "0.3.3" 
source = "git+https://github.com/sfackler/rust-openssl.git#ee66da6060c57bc86906261ee3d684fac1fd05e4" 
dependencies = [ 
"gcc 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", 
"libressl-pnacl-sys 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)", 
"pkg-config 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "openssl-sys" 
version = "0.3.3" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"gcc 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", 
"libressl-pnacl-sys 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)", 
"pkg-config 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "phantom" 
version = "0.0.3" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "phf" 
version = "0.6.6" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"phf_shared 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "phf_macros" 
version = "0.6.6" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"phf_shared 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)", 
"rand 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "phf_shared" 
version = "0.6.6" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "pkg-config" 
version = "0.2.0" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "plugin" 
version = "0.2.1" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"typemap 0.0.8 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "pnacl-build-helper" 
version = "1.3.2" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "postgres" 
version = "0.6.1" 
source = "git+https://github.com/sfackler/rust-postgres.git#fe6ae0c63a6e5d66d2afb785605b7d89ec47062d" 
dependencies = [ 
"byteorder 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)", 
"log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", 
"openssl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)", 
"phf 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)", 
"phf_macros 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)", 
"rustc-serialize 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)", 
"time 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "rand" 
version = "0.1.2" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"libc 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 
"log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "regex" 
version = "0.1.14" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "regex_macros" 
version = "0.1.8" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"regex 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "rust-mustache" 
version = "0.3.0" 
source = "git+https://github.com/nickel-org/rust-mustache.git#58ed857c88f8e5230913c382034601f37141b4ee" 
dependencies = [ 
"log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)", 
"rustc-serialize 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "rustc-serialize" 
version = "0.2.12" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "time" 
version = "0.1.17" 
source = "git+https://github.com/rust-lang/time#0960d5e21b332088b04f62117514b0a02fd31259" 
dependencies = [ 
"gcc 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", 
"libc 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "time" 
version = "0.1.17" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"gcc 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)", 
"libc 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "typemap" 
version = "0.0.8" 
source = "registry+https://github.com/rust-lang/crates.io-index" 
dependencies = [ 
"phantom 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)", 
"unsafe-any 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)", 
] 

[[package]] 
name = "unsafe-any" 
version = "0.2.2" 
source = "registry+https://github.com/rust-lang/crates.io-index" 

[[package]] 
name = "url" 
version = "0.2.18" 
source = "git+https://github.com/nickel-org/rust-url.git#5801582b307c16f759b5fe11dec71385af86180c" 
dependencies = [ 
"matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)", 
"rustc-serialize 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)", 
] 
+0

Potresti pubblicare il tuo pieno 'Cargo.lock'? – huon

+0

Sembra che il colpevole sia il fatto che [nickel-org's rust-http] (https://github.com/nickel-org/rust-http) (che è una dipendenza del nickel) porta in 'sfackler/ruggine- openssl' invece di quello "ufficiale" su crates.io. Sfortunatamente il repository http-ruggine non ha problemi attivati, ma ne ho aperto uno sul repository principale del nickel: [# 139] (https://github.com/nickel-org/nickel.rs/issues/149) –

+0

Renato: Sembra la soluzione per me, se lo metti come risposta lo accetto. Per ora, forse mi limito a creare un fork locale di http e vedere se riesco a sostituire la dipendenza senza una revisione completa. – Erik

risposta

3

Sembra che il colpevole è il fatto che nickel-org's rust-http (che è una dipendenza di nichel) introduce sfackler/rust-openssl al posto di openssl "ufficiale" su crates.io. Sfortunatamente il repository http-ruggine non ha problemi attivati, ma ne ho aperto uno sul repository principale del nichel: #139