Merge pull request #59 from jonathandturner/gitbranch

Show the current git branch in the prompt

Cargo.lock

@@ -400,6 +400,20 @@ dependencies = [
  "syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "curl-sys"
+version = "0.4.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cursive"
 version = "0.12.0"
@@ -822,6 +836,20 @@ dependencies = [
  "syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "git2"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.3.0"
@@ -840,6 +868,16 @@ name = "ident_case"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "idna"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "indexmap"
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@@ -935,6 +973,44 @@ name = "libc"
 version = "0.2.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.7.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libssh2-sys 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libssh2-sys"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.47 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -990,6 +1066,11 @@ name = "maplit"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "matches"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "memchr"
 version = "2.2.0"
@@ -1088,6 +1169,7 @@ dependencies = [
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  "getset 0.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "git2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1213,6 +1295,23 @@ dependencies = [
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 ]
 
+[[package]]
+name = "openssl-probe"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ordered-float"
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@@ -1291,6 +1390,11 @@ dependencies = [
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 ]
 
+[[package]]
+name = "percent-encoding"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "pin-utils"
 version = "0.1.0-alpha.4"
@@ -1974,6 +2078,22 @@ name = "ucd-util"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "unicode-normalization"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "unicode-segmentation"
 version = "1.3.0"
@@ -1997,6 +2117,16 @@ dependencies = [
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 ]
 
+[[package]]
+name = "url"
+version = "1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -2007,6 +2137,11 @@ name = "utf8parse"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -2157,6 +2292,7 @@ dependencies = [
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@@ -2202,9 +2338,11 @@ dependencies = [
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@@ -2245,6 +2387,8 @@ dependencies = [
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+"checksum vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "def296d3eb3b12371b2c7d0e83bfe1403e4db2d7a0bba324a12b21c4ee13143d"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"

Cargo.toml

@@ -48,6 +48,7 @@ app_dirs = "1.2.1"
 toml = "0.5.1"
 toml-query = "0.9.0"
 clap = "2.33.0"
+git2 = "0.8.0"
 
 [dependencies.pancurses]
 version = "0.16"

src/cli.rs

@@ -11,6 +11,7 @@ crate use crate::format::{EntriesListView, GenericView};
 use crate::object::Value;
 use crate::parser::{ParsedCommand, Pipeline};
 use crate::stream::empty_stream;
+use crate::git::current_branch;
 
 use log::debug;
 use rustyline::error::ReadlineError;
@@ -83,8 +84,12 @@ pub async fn cli() -> Result<(), Box<Error>> {
 
     loop {
         let readline = rl.readline(&format!(
-            "{}> ",
+            "{}{}> ",
-            context.env.lock().unwrap().cwd().display().to_string()
+            context.env.lock().unwrap().cwd().display().to_string(),
+            match current_branch() {
+                Some(s) => format!("({})", s),
+                None => "".to_string()
+            }
         ));
 
         match process_line(readline, &mut context).await {

src/git.rs

@@ -0,0 +1,21 @@
+use git2::{Repository, RepositoryOpenFlags};
+use std::ffi::OsString;
+
+pub fn current_branch() -> Option<String> {
+    let v: Vec<OsString> = vec![];
+    match Repository::open_ext(".", RepositoryOpenFlags::empty(), v) {
+        Ok(repo) => {
+            let r = repo.head();
+            match r {
+                Ok(r) => {
+                    match r.shorthand() {
+                        Some(s) => Some(s.to_string()),
+                        None => None,
+                    }
+                },
+                _ => None
+            }
+        },
+        _ => None
+    }
+}

src/main.rs

@@ -11,6 +11,7 @@ mod env;
 mod errors;
 mod evaluate;
 mod format;
+mod git;
 mod object;
 mod parser;
 mod prelude;