feat(init): no install flag

[ashleygwilliams]

fixes #173

Make sure these boxes are checked! 📦✅

• You have the latest version of rustfmt installed and have your
  cloned directory set to nightly

$ rustup override set nightly
$ rustup component add rustfmt-preview --toolchain nightly

• You ran rustfmt on the code base before submitting
• You reference which issue is being closed in the PR text

✨✨ 😄 Thanks so much for contributing to wasm-pack! 😄 ✨✨

[ashleygwilliams]

this actually panics rn :/

name = 'wasm-pack'
operating_system = 'unix:OSX'
crate_version = '0.3.1'
explanation = '''
Panic occurred in file 'libcore/option.rs' at line 345
'''
method = 'Panic'
backtrace = '''
stack backtrace:
   0:        0x1030cb524 - backtrace::backtrace::trace::h67a0fd4befda7a08
                        at /Users/ag_dubs/.cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/backtrace/mod.rs:42
   1:        0x1030c635c - backtrace::capture::Backtrace::new_unresolved::h08b8ecab3609f75c
                        at /Users/ag_dubs/.cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/capture.rs:88
   2:        0x1030c62ae - backtrace::capture::Backtrace::new::hba111deee42de24d
                        at /Users/ag_dubs/.cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/capture.rs:63
   3:        0x102ed375a - human_panic::report::Report::new::h228504294fc6e54d
                        at /Users/ag_dubs/.cargo/registry/src/github.com-1ecc6299db9ec823/human-panic-1.0.0/src/report.rs:45
   4:        0x102ed7307 - human_panic::handle_dump::h55a82078bc6de9d9
                        at /Users/ag_dubs/.cargo/registry/src/github.com-1ecc6299db9ec823/human-panic-1.0.0/src/lib.rs:195
   5:        0x102bf20b3 - wasm_pack::main::_$u7b$$u7b$closure$u7d$$u7d$::hefb960ff1f010895
                        at /Users/ag_dubs/rust/wasm-pack/<setup_panic macros>:18
   6:        0x1030fc93e - std::panicking::rust_panic_with_hook::h40a38271bb72dfef
                        at libstd/panicking.rs:515
   7:        0x1030fc6be - std::panicking::continue_panic_fmt::h5130d72fc1ac028e
                        at libstd/panicking.rs:426
   8:        0x1030fc348 - rust_begin_unwind
                        at libstd/panicking.rs:337
   9:        0x10313dce1 - core::panicking::panic_fmt::hb7f8b854a519aab1
                        at libcore/panicking.rs:92
  10:        0x10313dc16 - core::panicking::panic::h0874a63f21049da1
                        at libcore/panicking.rs:53
  11:        0x102dd4ae9 - _$LT$core..option..Option$LT$T$GT$$GT$::unwrap::h522a802bf073404e
                        at /Users/travis/build/rust-lang/rust/src/libcore/macros.rs:20
  12:        0x102c496ce - wasm_pack::command::init::Init::step_run_wasm_bindgen::hf0462a92013469ec
                        at src/command/init.rs:227
  13:        0x102c4636f - wasm_pack::command::init::Init::process::h1ae2cac26abc03f0
                        at src/command/init.rs:104
  14:        0x102c6f75f - wasm_pack::command::run_wasm_pack::hae2da31092a5e1b5
                        at src/command/mod.rs:114
  15:        0x102bf3ee7 - wasm_pack::run::h3d56ae319c0e5fbe
                        at src/main.rs:25
  16:        0x102bf362b - wasm_pack::main::hcb1ee59845757acf
                        at src/main.rs:13
  17:        0x102bf4011 - std::rt::lang_start::_$u7b$$u7b$closure$u7d$$u7d$::h18fc6d340a45a94d
                        at /Users/travis/build/rust-lang/rust/src/libstd/rt.rs:74
  18:        0x1030fc2c7 - std::panicking::try::do_call::h5aaa5bbee6b5b129
                        at libstd/panicking.rs:310
  19:        0x10310895e - __rust_maybe_catch_panic
                        at libpanic_unwind/lib.rs:105
  20:        0x1030ee801 - std::rt::lang_start_internal::h8b84524b7083c7ad
                        at libstd/panicking.rs:289
  21:        0x102bf3ff1 - std::rt::lang_start::hc7f1b61362fa4fe8
                        at /Users/travis/build/rust-lang/rust/src/libstd/rt.rs:74
  22:        0x102bf3f94 - main'''

[mgattozzi]

oof let me take a look

[mgattozzi]

Okay I also definitely got the panic

[mgattozzi]

Well I have had night with my yubikey so I'm going to email you the patch file, but also amazing branch name now that the patch file showed it to me.

[ashleygwilliams]

applying patch from email- looks like it fixes the panic so i'mma review and then likely merge