Update for tantivy 0.2.0

8 years ago · 2208b6569c
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,22 +1,27 @@
 [root]
 name = "tantivy-cli"
 version = "0.1.1"
 version = "0.2.0"
 dependencies = [
 "ansi_term 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "clap 2.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "bincode 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "chan 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "clap 2.19.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "iron 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "mount 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "persistent 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 "staticfile 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "tantivy 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "persistent 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 "staticfile 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "tantivy 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "urlencoded 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "urlencoded 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "aho-corasick"
 version = "0.5.2"
 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)",
@@ -27,6 +32,16 @@ name = "ansi_term"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "ansi_term"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "ascii"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "atomicwrites"
 version = "0.0.14"
@@ -43,8 +58,8 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "byteorder 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "num 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 "num 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 0.6.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -59,10 +74,10 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "iron 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "persistent 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "persistent 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 0.8.19 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_json 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
@@ -75,31 +90,43 @@ name = "byteorder"
 version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "chan"
 version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "clap"
 version = "2.10.0"
 version = "2.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "strsim 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "term_size 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "strsim 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "term_size 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicode-segmentation 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
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 "vec_map 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "combine"
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 version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 ]
 [[package]]
 name = "conduit-mime-types"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
@@ -108,14 +135,28 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "crossbeam"
 version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "dtoa"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "env_logger"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "error"
 version = "0.1.9"
@@ -131,7 +172,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -142,13 +183,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "memmap 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex-syntax 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
 name = "gcc"
 version = "0.3.32"
 version = "0.3.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
@@ -166,27 +207,27 @@ dependencies = [
 [[package]]
 name = "httparse"
 version = "1.1.2"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "hyper"
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 dependencies = [
 "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "httparse 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 "solicit 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
@@ -194,7 +235,7 @@ name = "idna"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicode-bidi 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -206,19 +247,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "conduit-mime-types 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "error 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper 0.9.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "lazy_static 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "modifier 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "typemap 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "itertools"
 version = "0.4.18"
 version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
@@ -247,7 +288,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "libc"
 version = "0.2.15"
 version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
@@ -257,17 +298,27 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "lz4"
 version = "1.18.131"
 version = "1.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "gcc 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "gcc 0.3.39 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "lz4-sys 1.0.1+1.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "skeptic 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "lz4-sys"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
 name = "matches"
 version = "0.1.2"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
@@ -275,7 +326,7 @@ name = "memchr"
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
@@ -285,7 +336,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "fs2 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -296,7 +347,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "fs2 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -324,35 +375,35 @@ dependencies = [
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 name = "num"
 version = "0.1.34"
 version = "0.1.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "num-bigint 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-complex 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-integer 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -360,7 +411,7 @@ name = "num-integer"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 [[package]]
@@ -369,23 +420,23 @@ version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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@@ -393,12 +444,20 @@ name = "num_cpus"
 version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "libc 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -423,32 +482,32 @@ dependencies = [
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@@ -474,23 +533,23 @@ name = "serde"
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 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "55dd963dbaeadc08aa7266bf7f91c3154a7805e32bb94b820b769d2ef3b4744d"
 "checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
 "checksum time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "3c7ec6d62a20df54e07ab3b78b9a3932972f4b7981de295563686849eb3989af"
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@@ -803,11 +868,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,37 +1,43 @@
 [package]
 name = "tantivy-cli"
 version = "0.1.1"
 version = "0.2.0"
 authors = ["Paul Masurel <paul.masurel@gmail.com>"]
 description = """Command line interface for Tantivy, a search engine library."""
 documentation = "https://github.com/fulmicoton/tantivy"
 homepage = "https://github.com/fulmicoton/tantivy"
 repository = "https://github.com/fulmicoton/tantivy"
 documentation = "https://github.com/tantivy-search/tantivy-cli"
 homepage = "https://github.com/tantivy-search/tantivy-cli"
 repository = "https://github.com/tantivy-search/tantivy-cli"
 readme = "README.md"
 keywords = ["search", "information", "retrieval"]
 license = "MIT"
 [dependencies]
 #tantivy = { path = "../tantivy" }
 tantivy = "0.1.1"
 time = "0.1.34"
 time = "0.1"
 iron = "0.4"
 staticfile = "0.3.0"
 rustc-serialize = "0.3.16"
 persistent="0.2.0"
 staticfile = "0.3"
 rustc-serialize = "0.3"
 persistent="0.2"
 clap = "2"
 ansi_term = "0.8.0"
 ansi_term = "0.8"
 urlencoded = "0.4"
 mount = "0.2.1"
 mount = "0.2"
 chan = "0.1"
 bincode = "0.4"
 byteorder = "0.5"
 log = "0.3"
 env_logger = "0.3"
 tantivy = "0.2.0"
 [[bin]]
 name = "tantivy"
 path = "src/main.rs"
 # [dependencies.clap]
 #version = "2"
 #default-features = false
 #features = [ "suggestions", "color" ]
 [profile.release]
 opt-level = 3
 debug = false
 debug-assertions = false
 lto = true
 [[bin]]
 name = "tantivy"
 path = "src/main.rs"
--- a/README.md
+++ b/README.md
@@ -142,7 +142,6 @@ It contains two sections:
 - segments (currently empty, but we will change that soon)
 - schema 
 # Indexing the document: `index`
@@ -163,34 +162,39 @@ Make sure to decompress the file
    bunzip2 wiki-articles.json.bz2
 ```
 If you are in a rush you can [download 100 articles in the right format here](http://fulmicoton.com/tantivy-files/wiki-articles-1000.json).
 If you are in a rush you can [download 100 articles in the right format here (11 MB)](http://fulmicoton.com/tantivy-files/wiki-articles-1000.json).
 The `index` command will index your document.
 By default it will use as many threads as there are cores on your machine.
 You can change the number of threads by passing it the `-t` parameter.
 By default it will use as 3 thread, each with a buffer size of 1GB split a
 accross these threads. 
 On my computer (8 core Xeon(R) CPU X3450  @ 2.67GHz), it will take around 6 minutes.
 ```
    cat wiki-articles.json | tantivy index -i ./wikipedia-index
 ```
 While it is indexing, you can peek at the index directory
 to check what is happening.
 You can change the number of threads by passing it the `-t` parameter, and the total
 buffer size used by the threads heap by using the `-m`. Note that tantivy's memory usage
 is greater than just this buffer size parameter.
 On my computer (8 core Xeon(R) CPU X3450  @ 2.67GHz), on 8 threads, indexing wikipedia takes around 9 minutes.
 While tantivy is indexing, you can peek at the index directory to check what is happening.
 ```bash
    ls ./wikipedia-index
 ```
 If you indexed the 5 million articles, you should see a lot of new files, all with the following format:
 The main file is `meta.json`.
 You should also see a lot of files with a UUID as filename, and different extensions.
 Our index is in fact divided in segments. Each segment acts as an individual smaller index.
 Its name is simply a uuid. 
 If you decided to index the complete wikipedia, you may also see some of these files disappear.
 Having too many segments can hurt search performance, so tantivy actually automatically starts
 merging segments. 
 # Serve the search index: `serve`
@@ -204,26 +208,30 @@ You can run it with the following command.
 By default, it will serve on port `3000`.
 You can search for the top 20 most relevant documents for the query `Barack Obama` by accessing
 the following [url](http://localhost:3000/api/?q=barack+obama&explain=true&nhits=20) in your browser
 the following [url](http://localhost:3000/api/?q=barack+obama&nhits=20) in your browser
    http://localhost:3000/api/?q=barack+obama&nhits=20
    http://localhost:3000/api/?q=barack+obama&explain=true&nhits=20
 By default this query is treated as `barack OR obama`.
 You can also search for documents that contains both term, by adding a `+` sign before the terms in your query.
    http://localhost:3000/api/?q=%2Bbarack%20%2Bobama%0A&nhits=20
 Also, `-` makes it possible to remove documents the documents containing a specific term.
 # Optimizing the index: `merge`
    http://localhost:3000/api/?q=-barack%20%2Bobama%0A&nhits=20
 Finally tantivy handle phrase queries.
 Each of tantivy's indexer threads is building its own independant segment.
 When its buffer is full, it closes its running segment, and starts working on a new one.
 You should currently have more than 50 segments in your directory.
    http://localhost:3000/api/?q=%22barack%20obama%22&nhits=20
 Having that many segments can hurt your query performance.
 Calling `tantivy merge` will merge your segments into one. 
 # Search the index via the command line
 You may also use the `search` command to stream all documents matching a specific query.
 The documents are returned in an unspecified order.
 ```
    tantivy merge -i ./wikipedia-index
    tantivy search -i wikipedia-index -q "barack obama"
 ```
 (The command takes less than 4 minutes on my computer)
 Note that your files are still there even after having run the command.
 However, `meta.json` only lists one of the segments.
 You will still need to remove the files manually.
--- a/src/commands/bench.rs
+++ b/src/commands/bench.rs
@@ -1,7 +1,6 @@
 use tantivy::Index;
 use tantivy::schema::{Field, Schema};
 use tantivy::query::QueryParser;
 use tantivy::query::Query;
 use std::path::Path;
 use tantivy::TimerTree;
 use std::io::BufReader;
@@ -57,7 +56,7 @@ fn run_bench(index_path: &Path,
    println!("-------------------------------\n\n\n");
    let index = try!(Index::open(index_path).map_err(|e| format!("Failed to open index.\n{:?}", e)));
    let searcher = try!(index.searcher().map_err(|e| format!("Failed to acquire searcher.\n{:?}", e)));
    let searcher = index.searcher();
    let default_search_fields: Vec<Field> = extract_search_fields(&index.schema());
    let queries = try!(read_query_file(query_filepath).map_err(|e| format!("Failed reading the query file:  {}", e)));
    let query_parser = QueryParser::new(index.schema(), default_search_fields);
@@ -67,15 +66,15 @@ fn run_bench(index_path: &Path,
    for _ in 0..num_repeat {
        for query_txt in &queries {
            let query = query_parser.parse_query(&query_txt).unwrap();
            let num_terms = query.num_terms();
            // let num_terms = query.num_terms();
            let mut top_collector = TopCollector::with_limit(10);
            let mut count_collector = CountCollector::new();
            let mut count_collector = CountCollector::default();
            let timing;
            {
                let mut collector = chain().add(&mut top_collector).add(&mut count_collector);
                let mut collector = chain().push(&mut top_collector).push(&mut count_collector);
                timing = try!(query.search(&searcher, &mut collector).map_err(|e| format!("Failed while searching query {:?}.\n\n{:?}", query_txt, e)));
            }
            println!("{}\t{}\t{}\t{}", query_txt, num_terms, count_collector.count(), timing.total_time());
            println!("{}\t{}\t{}", query_txt, count_collector.count(), timing.total_time());
        }
    }
@@ -87,7 +86,7 @@ fn run_bench(index_path: &Path,
            let query = query_parser.parse_query(&query_txt).unwrap();
            let mut top_collector = TopCollector::with_limit(10);
            try!(query.search(&searcher, &mut top_collector).map_err(|e| format!("Failed while retrieving document for query {:?}.\n{:?}", query, e)));
            let mut timer = TimerTree::new();
            let mut timer = TimerTree::default();
            {
                let _scoped_timer_ = timer.open("total");
                for doc_address in top_collector.docs() {
--- a/src/commands/index.rs
+++ b/src/commands/index.rs
@@ -1,15 +1,19 @@
 use std::convert::From;
 use std::fs::File;
 use std::io;
 use std::cmp;
 use std::io::BufRead;
 use std::io::BufReader;
 use std::io::Read;
 use std::path::PathBuf;
 use tantivy; 
 use tantivy;
 use tantivy::Index;
 use tantivy::IndexWriter;
 use tantivy::Document;
 use time::PreciseTime;
 use clap::ArgMatches;
 use chan;
 use std::thread;
 pub fn run_index_cli(argmatch: &ArgMatches) -> Result<(), String> {
    let index_directory = PathBuf::from(argmatch.value_of("index").unwrap());
@@ -21,46 +25,85 @@ pub fn run_index_cli(argmatch: &ArgMatches) -> Result<(), String> {
            None => DocumentSource::FromPipe,
        }
    };
    let num_threads = try!(value_t!(argmatch, "num_threads", usize).map_err(|_|format!("Failed to read num_threads argument as an integer.")));
    run_index(index_directory, document_source, num_threads).map_err(|e| format!("Indexing failed : {:?}", e))    
 }
 enum DocumentSource {
    FromPipe,
    FromFile(PathBuf),
    let mut num_threads = try!(value_t!(argmatch, "num_threads", usize).map_err(|_|format!("Failed to read num_threads argument as an integer.")));
    if num_threads == 0 {
        num_threads = 1;
    }
    let buffer_size = try!(value_t!(argmatch, "memory_size", usize).map_err(|_|format!("Failed to read the buffer size argument as an integer.")));
    let buffer_size_per_thread = buffer_size / num_threads;
    run_index(index_directory, document_source, buffer_size_per_thread, num_threads).map_err(|e| format!("Indexing failed : {:?}", e))
 }
 fn run_index(directory: PathBuf, document_source: DocumentSource, num_threads: usize) -> tantivy::Result<()> {
 fn run_index(directory: PathBuf, document_source: DocumentSource, buffer_size_per_thread: usize, num_threads: usize) -> tantivy::Result<()> {
    let index = try!(Index::open(&directory));
    let schema = index.schema();
    let (line_sender, line_receiver) = chan::sync(10_000);
    let (doc_sender, doc_receiver) = chan::sync(10_000);
    thread::spawn(move || {
        let articles = document_source.read().unwrap();
        for article_line_res in articles.lines() {
            let article_line = article_line_res.unwrap();
            line_sender.send(article_line);
        }
    });
    let mut index_writer = try!( 
    let num_threads_to_parse_json = cmp::max(1, num_threads / 2);
    info!("Using {} threads to parse json", num_threads_to_parse_json);
    for _ in 0..num_threads_to_parse_json {
        let schema_clone = schema.clone();
        let doc_sender_clone = doc_sender.clone();
        let line_receiver_clone = line_receiver.clone();
        thread::spawn(move || {
            for article_line in line_receiver_clone {
                match schema_clone.parse_document(&article_line) {
                    Ok(doc) => {
                        doc_sender_clone.send(doc);
                    }
                    Err(err) => {
                        println!("Failed to add document doc {:?}", err);
                    }
                }
            }
        });
    }
    drop(doc_sender);
    let mut index_writer = try!(
        if num_threads > 0 {
            index.writer_with_num_threads(num_threads)
            index.writer_with_num_threads(num_threads, buffer_size_per_thread)
        }
        else {
            index.writer()
            index.writer(buffer_size_per_thread)
        }
    );
    let index_result = index_documents(&mut index_writer, doc_receiver);
    try!(match index_result {
        Ok(docstamp) => {
            println!("Commit succeed, docstamp at {}", docstamp);
            Ok(())
        }
        Err(e) => {
            println!("Error during indexing, rollbacking.");
            index_writer.rollback().unwrap();
            println!("Rollback succeeded");
            Err(e)
        }
    });
    let articles = try!(document_source.read());
    index_writer.wait_merging_threads()
 }
 fn index_documents(index_writer: &mut IndexWriter, doc_receiver: chan::Receiver<Document>) -> tantivy::Result<u64> {
    let group_count = 100_000;
    let mut num_docs = 0;
    let mut cur = PreciseTime::now();
    let group_count = 100000;
    for article_line_res in articles.lines() {
        let article_line = article_line_res.unwrap(); // TODO
        match schema.parse_document(&article_line) {
            Ok(doc) => {
                index_writer.add_document(doc).unwrap();
            }
            Err(err) => {
                println!("Failed to add document doc {:?}", err);
            }
        }
    for doc in doc_receiver {
        try!(index_writer.add_document(doc));
        if num_docs > 0 && (num_docs % group_count == 0) {
            println!("{} Docs", num_docs);
            let new = PreciseTime::now();
@@ -68,29 +111,23 @@ fn run_index(directory: PathBuf, document_source: DocumentSource, num_threads: u
            println!("{:?} docs / hour", group_count * 3600 * 1_000_000 as u64 / (elapsed.num_microseconds().unwrap() as u64));
            cur = new;
        }
        num_docs += 1;
    }
    index_writer.wait().unwrap(); // TODO
    Ok(())
    index_writer.commit()
 }
 #[derive(Clone,Debug,RustcDecodable,RustcEncodable)]
 pub struct WikiArticle {
    pub url: String,
    pub title: String,
    pub body: String,
 enum DocumentSource {
    FromPipe,
    FromFile(PathBuf),
 }
 impl DocumentSource {
    fn read(&self,) -> io::Result<BufReader<Box<Read>>> {
        Ok(match self {
            &DocumentSource::FromPipe => {
                BufReader::new(Box::new(io::stdin()))
            } 
            }
            &DocumentSource::FromFile(ref filepath) => {
                let read_file = try!(File::open(&filepath));
                BufReader::new(Box::new(read_file))
@@ -98,4 +135,3 @@ impl DocumentSource {
        })
    }
 }
--- a/src/commands/merge.rs
+++ b/src/commands/merge.rs
@@ -4,6 +4,8 @@ use tantivy::Index;
 use std::path::PathBuf;
 use clap::ArgMatches;
 const HEAP_SIZE: usize = 300_000_000;
 pub fn run_merge_cli(argmatch: &ArgMatches) -> Result<(), String> {
    let index_directory = PathBuf::from(argmatch.value_of("index").unwrap());
    run_merge(index_directory).map_err(|e| format!("Indexing failed : {:?}", e))
@@ -12,7 +14,7 @@ pub fn run_merge_cli(argmatch: &ArgMatches) -> Result<(), String> {
 fn run_merge(path: PathBuf) -> tantivy::Result<()> {
    let index = try!(Index::open(&path));
    let segments = index.segments();
    let mut index_writer = try!(index.writer());
    let segments = index.searchable_segments();
    let mut index_writer = try!(index.writer(HEAP_SIZE));
    index_writer.merge(&segments)
 }
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -3,9 +3,11 @@ mod serve;
 mod new;
 mod bench;
 mod merge;
 mod search;
 pub use self::new::run_new_cli;
 pub use self::index::run_index_cli;
 pub use self::serve::run_serve_cli;
 pub use self::bench::run_bench_cli;
 pub use self::merge::run_merge_cli;
 pub use self::search::run_search_cli;
--- a/src/commands/new.rs
+++ b/src/commands/new.rs
@@ -12,9 +12,9 @@ use std::ascii::AsciiExt;
 use rustc_serialize::json;
 pub fn run_new_cli(matches: &ArgMatches) -> tantivy::Result<()> {
 pub fn run_new_cli(matches: &ArgMatches) -> Result<(), String> {
    let index_directory = PathBuf::from(matches.value_of("index").unwrap());
    run_new(index_directory)   
    run_new(index_directory).map_err(|e| format!("{:?}" , e))
 }
@@ -72,8 +72,8 @@ fn prompt_yn(msg: &str) -> bool {
 }
 fn ask_add_field_text(field_name: &str, schema: &mut Schema) {
    let mut text_options = TextOptions::new();
 fn ask_add_field_text(field_name: &str, schema_builder: &mut SchemaBuilder) {
    let mut text_options = TextOptions::default();
    if prompt_yn("Should the field be stored") {
        text_options = text_options.set_stored();
    }
@@ -100,12 +100,12 @@ fn ask_add_field_text(field_name: &str, schema: &mut Schema) {
        TextIndexingOptions::Unindexed
    };
    text_options = text_options.set_indexing_options(indexing_options);
    schema.add_text_field(field_name, text_options);
    schema_builder.add_text_field(field_name, text_options);
 }
 fn ask_add_field_u32(field_name: &str, schema: &mut Schema) {
    let mut u32_options = U32Options::new();
 fn ask_add_field_u32(field_name: &str, schema_builder: &mut SchemaBuilder) {
    let mut u32_options = U32Options::default();
    if prompt_yn("Should the field be stored") {
        u32_options = u32_options.set_stored();
    }
@@ -115,34 +115,35 @@ fn ask_add_field_u32(field_name: &str, schema: &mut Schema) {
    if prompt_yn("Should the field be indexed") {
        u32_options = u32_options.set_indexed();
    }
    schema.add_u32_field(field_name, u32_options);
    schema_builder.add_u32_field(field_name, u32_options);
 }
 fn ask_add_field(schema: &mut Schema) {
 fn ask_add_field(schema_builder: &mut SchemaBuilder) {
    println!("\n\n");
    let field_name = prompt_input("New field name ", field_name_validate);
    let text_or_integer = prompt_options("Text or unsigned 32-bit integer", vec!('T', 'I'));
    if text_or_integer =='T' {
        ask_add_field_text(&field_name, schema);
        ask_add_field_text(&field_name, schema_builder);
    }
    else {
        ask_add_field_u32(&field_name, schema);        
        ask_add_field_u32(&field_name, schema_builder);        
    }
 }
 fn run_new(directory: PathBuf) -> tantivy::Result<()> {
    println!("\n{} ", Style::new().bold().fg(Green).paint("Creating new index"));
    println!("{} ", Style::new().bold().fg(Green).paint("Let's define its schema!"));
    let mut schema = Schema::new();
    println!("{} ", Style::new().bold().fg(Green).paint("Let's define it's schema!"));
    let mut schema_builder = SchemaBuilder::default();
    loop  {
        ask_add_field(&mut schema);
        ask_add_field(&mut schema_builder);
        if !prompt_yn("Add another field") {
            break;
        }
    }
    let schema = schema_builder.build();
    let schema_json = format!("{}", json::as_pretty_json(&schema));
    println!("\n{}\n", Style::new().fg(Green).paint(schema_json));
    let mut index = try!(Index::create(&directory, schema));
    index.save_metas()
    Index::create(&directory, schema)?;
    Ok(())
 }
--- a/src/commands/search.rs
+++ b/src/commands/search.rs
@@ -0,0 +1,52 @@
 use clap::ArgMatches;
 use rustc_serialize::json::as_json;
 use std::convert::From;
 use std::path::Path;
 use std::path::PathBuf;
 use tantivy;
 use tantivy::Index;
 use tantivy::query::QueryParser;
 use tantivy::schema::Field;
 use tantivy::schema::FieldType;
 pub fn run_search_cli(matches: &ArgMatches) -> Result<(), String> {
    let index_directory = PathBuf::from(matches.value_of("index").unwrap());
    let query = matches.value_of("query").unwrap();
    run_search(&index_directory, &query).map_err(|e| format!("{:?}", e))
 }
 fn run_search(directory: &Path, query: &str) -> tantivy::Result<()> {     
    let index = Index::open(directory)?;
    let schema = index.schema();
    let default_fields: Vec<Field> = schema
        .fields()
        .iter()
        .enumerate()
        .filter(
            |&(_, ref field_entry)| {
                match *field_entry.field_type() {
                    FieldType::Str(ref text_field_options) => {
                        text_field_options.get_indexing_options().is_indexed()
                    },
                    FieldType::U32(_) => false
                }
            }
        )
        .map(|(i, _)| Field(i as u8))
        .collect();
    let query_parser = QueryParser::new(schema.clone(), default_fields);
    let query = query_parser.parse_query(query)?;
    let searcher = index.searcher();
    let weight = query.weight(&searcher)?;
    let schema = index.schema();
    for segment_reader in searcher.segment_readers() {
        let mut scorer = try!(weight.scorer(segment_reader));
        while scorer.advance() {
            let doc_id = scorer.doc();
            let doc = segment_reader.doc(doc_id)?;
            let named_doc = schema.to_named_doc(&doc);
            println!("{}", as_json(&named_doc));
        }
    }
    Ok(())
 }
--- a/src/commands/serve.rs
+++ b/src/commands/serve.rs
@@ -4,14 +4,13 @@
 /// and it takes the following query string argument
 /// 
 /// - `q=` :    your query
 //  - `nhits`:  the number of hits that should be returned. (default to 10)  
 /// - `explain=` : if true returns some information about the score.  
 ///  - `nhits`:  the number of hits that should be returned. (default to 10)   
 ///
 ///
 /// For instance, the following call should return the 20 most relevant
 /// hits for fulmicoton.
 ///
 ///     http://localhost:3000/api/?q=fulmicoton&explain=false&nhits=20
 ///     http://localhost:3000/api/?q=fulmicoton&&nhits=20
 ///
@@ -35,10 +34,7 @@ use tantivy::collector::CountCollector;
 use tantivy::collector::TopCollector;
 use tantivy::Document;
 use tantivy::Index;
 use tantivy::query::Explanation;
 use tantivy::query::Query;
 use tantivy::query::QueryParser;
 use tantivy::Result;
 use tantivy::schema::Field;
 use tantivy::schema::FieldType;
 use tantivy::schema::NamedFieldDocument;
@@ -46,12 +42,12 @@ use tantivy::schema::Schema;
 use tantivy::TimerTree;
 use urlencoded::UrlEncodedQuery;
 pub fn run_serve_cli(matches: &ArgMatches) -> tantivy::Result<()> {
 pub fn run_serve_cli(matches: &ArgMatches) -> Result<(), String> {
    let index_directory = PathBuf::from(matches.value_of("index").unwrap());
    let port = value_t!(matches, "port", u16).unwrap_or(3000u16);
    let host_str = matches.value_of("host").unwrap_or("localhost");
    let host = format!("{}:{}", host_str, port);
    run_serve(index_directory, &host)   
    run_serve(index_directory, &host).map_err(|e| format!("{:?}", e))
 }
@@ -66,7 +62,6 @@ struct Serp {
 #[derive(RustcEncodable)]
 struct Hit {
    doc: NamedFieldDocument,
    explain: Option<Explanation>,
 }
 struct IndexServer {
@@ -87,7 +82,9 @@ impl IndexServer {
            .filter(
                |&(_, ref field_entry)| {
                    match *field_entry.field_type() {
                        FieldType::Str(_) => true,
                        FieldType::Str(ref text_field_options) => {
                            text_field_options.get_indexing_options().is_indexed()
                        },
                        FieldType::U32(_) => false
                    }
                }
@@ -102,24 +99,23 @@ impl IndexServer {
        }
    }
    fn create_hit(&self, doc: &Document, explain: Option<Explanation>) -> Hit {
    fn create_hit(&self, doc: &Document) -> Hit {
        Hit {
            doc: self.schema.to_named_doc(&doc),
            explain: explain,
            doc: self.schema.to_named_doc(&doc)
        }
    }
    fn search(&self, q: String, num_hits: usize, explain:  bool) -> Result<Serp> {
        let query = self.query_parser.parse_query(&q).unwrap();
        let searcher = self.index.searcher().unwrap();
        let mut count_collector = CountCollector::new();
    fn search(&self, q: String, num_hits: usize) -> tantivy::Result<Serp> {
        let query = self.query_parser.parse_query(&q).expect("Parsing the query failed");
        let searcher = self.index.searcher();
        let mut count_collector = CountCollector::default();
        let mut top_collector = TopCollector::with_limit(num_hits);
        let mut timer_tree = TimerTree::new();
        let mut timer_tree = TimerTree::default();
        {
            let _search_timer = timer_tree.open("search");
            let mut chained_collector = collector::chain()
                .add(&mut top_collector)
                .add(&mut count_collector);
                .push(&mut top_collector)
                .push(&mut count_collector);
            try!(query.search(&searcher, &mut chained_collector));
        }
        let hits: Vec<Hit> = {
@@ -128,14 +124,7 @@ impl IndexServer {
                .iter()
                .map(|doc_address| {
                    let doc: Document = searcher.doc(doc_address).unwrap();
                    let explanation;
                    if explain {
                        explanation = Some(query.explain(&searcher, doc_address).unwrap());
                    }
                    else {
                        explanation = None;
                    }
                    self.create_hit(&doc, explanation)
                    self.create_hit(&doc)
                })
                .collect()
        };
@@ -174,14 +163,10 @@ fn search(req: &mut Request) -> IronResult<Response> {
                .get("nhits")
                .and_then(|nhits_str| usize::from_str(&nhits_str[0]).ok())
                .unwrap_or(10);
            let explain: bool = qs_map
                .get("explain")
                .map(|s| &s[0] == &"true")
                .unwrap_or(false);
            let query = try!(qs_map
                .get("q")
                .ok_or_else(|| IronError::new(StringError(String::from("Parameter q is missing from the query")), status::BadRequest)))[0].clone();
            let serp = index_server.search(query, num_hits, explain).unwrap();
            let serp = index_server.search(query, num_hits).unwrap();
            let resp_json = as_pretty_json(&serp).indent(4);
            let content_type = "application/json".parse::<Mime>().unwrap();
            Ok(Response::with((content_type, status::Ok, format!("{}", resp_json))))
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,14 +2,20 @@
 extern crate clap;
 #[macro_use]
 extern crate rustc_serialize;
 #[macro_use]
 extern crate log;
 extern crate env_logger;
 extern crate tantivy;
 extern crate time;
 extern crate persistent;
 extern crate urlencoded;
 extern crate iron;
 extern crate chan;
 extern crate staticfile;
 extern crate ansi_term;
 extern crate mount;
 extern crate bincode;
 extern crate byteorder;
 use clap::{AppSettings, Arg, App, SubCommand};
 mod commands;
@@ -17,13 +23,16 @@ use self::commands::*;
 fn main() {
    env_logger::init().unwrap();
    let index_arg = Arg::with_name("index")
                    .short("i")
                    .long("index")
                    .value_name("directory")
                    .help("Tantivy index directory filepath")
                    .required(true);
    let cli_options = App::new("Tantivy")
        .setting(AppSettings::SubcommandRequiredElseHelp)
        .version("0.1")
@@ -33,7 +42,7 @@ fn main() {
            SubCommand::with_name("new")
                .about("Create a new index. The schema will be populated with a simple example schema")
                .arg(index_arg.clone())
        ) 
        )
        .subcommand(
            SubCommand::with_name("serve")
                .about("Start a server")
@@ -50,7 +59,7 @@ fn main() {
                    .help("Port")
                    .default_value("localhost")
                )
        )       
        )
        .subcommand(
            SubCommand::with_name("index")
                .about("Index files")
@@ -65,7 +74,24 @@ fn main() {
                    .long("num_threads")
                    .value_name("num_threads")
                    .help("Number of indexing threads. By default num cores - 1 will be used")
                    .default_value("0"))
                    .default_value("3"))
                .arg(Arg::with_name("memory_size")
                    .short("m")
                    .long("memory_size")
                    .value_name("memory_size")
                    .help("Total memory_size in bytes. It will be split for the different threads.")
                    .default_value("1000000000"))
        )
        .subcommand(
            SubCommand::with_name("search")
                .about("Search an index.")
                .arg(index_arg.clone())
                .arg(Arg::with_name("query")
                    .short("q")
                    .long("query")
                    .value_name("query")
                    .help("Query")
                    .required(true))
        )
        .subcommand(
            SubCommand::with_name("bench")
@@ -90,23 +116,17 @@ fn main() {
                .arg(index_arg.clone())
        )
        .get_matches();
    let (subcommand, some_options) = cli_options.subcommand();
    let options = some_options.unwrap();
    match subcommand {
        "new" => run_new_cli(options).unwrap(),
        "index" => run_index_cli(options).unwrap(),
        "serve" => run_serve_cli(options).unwrap(),
        "merge" => run_merge_cli(options).unwrap(),
        "bench" => {
            let res = run_bench_cli(options);
            match res {
                Err(e) => { println!("{}", e);}
                _ => {}
            }
        },
        _ => {}
    }
    let run_cli = match subcommand {
        "new" => run_new_cli,
        "index" => run_index_cli,
        "serve" => run_serve_cli,
        "search" => run_search_cli,
        "merge" => run_merge_cli,
        "bench" => run_bench_cli,
        _ => panic!("Subcommand {} is unknown", subcommand)
    };
    run_cli(options).unwrap();
 }