Add imag-git command

5 files changed, 240 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 4dd81b09..4be34403 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ members = [
     "bin/core/imag-annotate",
     "bin/core/imag-diagnostics",
     "bin/core/imag-edit",
+    "bin/core/imag-git",
     "bin/core/imag-gps",
     "bin/core/imag-grep",
     "bin/core/imag-ids",
diff --git a/bin/core/imag-git/Cargo.toml b/bin/core/imag-git/Cargo.toml
new file mode 100644
index 00000000..e07b6f22
--- /dev/null
+++ b/bin/core/imag-git/Cargo.toml
@@ -0,0 +1,36 @@
+[package]
+name = "imag-git"
+version = "0.8.0"
+authors = ["Matthias Beyer <mail@beyermatthias.de>"]
+
+description = "Part of the imag core distribution: imag-git command"
+
+keywords    = ["imag", "PIM", "personal", "information", "management"]
+readme      = "../../../README.md"
+license     = "LGPL-2.1"
+
+documentation = "https://imag-pim.org/doc/"
+repository    = "https://github.com/matthiasbeyer/imag"
+homepage      = "http://imag-pim.org"
+
+build = "../../../build.rs"
+
+[badges]
+travis-ci                         = { repository = "matthiasbeyer/imag" }
+is-it-maintained-issue-resolution = { repository = "matthiasbeyer/imag" }
+is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
+maintenance                       = { status     = "actively-developed" }
+
+[dependencies]
+log        = "0.3"
+toml       = "0.4"
+toml-query = "0.6"
+
+libimagrt    = { version = "0.8.0", path = "../../../lib/core/libimagrt" }
+libimagerror = { version = "0.8.0", path = "../../../lib/core/libimagerror" }
+
+[dependencies.clap]
+version          = "^2.29"
+default-features = false
+features         = ["color", "suggestions", "wrap_help"]
+
diff --git a/bin/core/imag-git/src/main.rs b/bin/core/imag-git/src/main.rs
new file mode 100644
index 00000000..f17cf335
--- /dev/null
+++ b/bin/core/imag-git/src/main.rs
@@ -0,0 +1,170 @@
+//
+// imag - the personal information management suite for the commandline
+// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; version
+// 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+//
+
+#![deny(
+    non_camel_case_types,
+    non_snake_case,
+    path_statements,
+    trivial_numeric_casts,
+    unstable_features,
+    unused_allocation,
+    unused_import_braces,
+    unused_imports,
+    unused_must_use,
+    unused_mut,
+    unused_qualifications,
+    while_true,
+)]
+
+extern crate clap;
+#[macro_use] extern crate log;
+extern crate toml;
+extern crate toml_query;
+
+#[macro_use] extern crate libimagrt;
+extern crate libimagerror;
+
+use std::io::Write;
+use std::io::ErrorKind;
+use std::process::Command;
+
+use toml::Value;
+use toml_query::read::TomlValueReadExt;
+
+use libimagerror::exit::ExitUnwrap;
+use libimagerror::io::ToExitCode;
+use libimagrt::setup::generate_runtime_setup;
+
+mod ui;
+
+fn main() {
+    let version = make_imag_version!();
+    let rt = generate_runtime_setup("imag-git",
+                                    &version,
+                                    "Helper to call git in the store",
+                                    ui::build_ui);
+
+    let execute_in_store = rt
+        .config()
+        .unwrap_or_else(|| {
+            error!("No configuration. Please use git yourself, not via imag-git");
+            error!("Won't continue without configuration.");
+            ::std::process::exit(1);
+        })
+        .read("git.execute_in_store")
+        .unwrap_or_else(|e| {
+            error!("Failed to read config setting 'git.execute_in_store'");
+            error!("-> {:?}", e);
+            ::std::process::exit(1)
+        })
+        .unwrap_or_else(|| {
+            error!("Missing config setting 'git.execute_in_store'");
+            ::std::process::exit(1)
+        });
+
+    let execute_in_store = match *execute_in_store {
+        Value::Boolean(b) => b,
+        _ => {
+            error!("Type error: 'git.execute_in_store' is not a boolean!");
+            ::std::process::exit(1)
+        }
+    };
+
+    let execpath = if execute_in_store {
+        rt.store().path().to_str()
+    } else {
+        rt.rtp().to_str()
+    }
+    .map(String::from)
+    .unwrap_or_else(|| {
+        error!("Cannot parse to string: {:?}", rt.store().path());
+        ::std::process::exit(1)
+    });
+
+
+    let mut command = Command::new("git");
+    command
+        .stdin(::std::process::Stdio::inherit())
+        .stdout(::std::process::Stdio::inherit())
+        .stderr(::std::process::Stdio::inherit())
+        .arg("-C").arg(&execpath);
+
+    let args = rt
+        .cli()
+        .values_of("")
+        .map(|vs| vs.map(String::from).collect())
+        .unwrap_or_else(|| vec![]);
+
+    debug!("Adding args = {:?}", args);
+    command.args(&args);
+
+    match rt.cli().subcommand() {
+        (external, Some(ext_m)) => {
+            command.arg(external);
+            let args = ext_m
+                .values_of("")
+                .map(|vs| vs.map(String::from).collect())
+                .unwrap_or_else(|| vec![]);
+
+            debug!("Adding subcommand '{}' and args = {:?}", external, args);
+            command.args(&args);
+        },
+        _ => {},
+    }
+
+    let mut out = rt.stdout();
+
+    debug!("Calling: {:?}", command);
+
+    match command.spawn().and_then(|mut c| c.wait()) {
+        Ok(exit_status) => {
+            if !exit_status.success() {
+                debug!("git exited with non-zero exit code: {:?}", exit_status);
+                eprintln!("git exited with non-zero exit code");
+                ::std::process::exit(exit_status.code().unwrap_or(1));
+            }
+            debug!("Successful exit!");
+        },
+
+        Err(e) => {
+            debug!("Error calling git");
+            match e.kind() {
+                ErrorKind::NotFound => {
+                    let _ = writeln!(out, "Cannot find 'git' executable")
+                        .to_exit_code()
+                        .unwrap_or_exit();
+                    ::std::process::exit(1);
+                },
+                ErrorKind::PermissionDenied => {
+                    let _ = writeln!(out, "No permission to execute: 'git'")
+                        .to_exit_code()
+                        .unwrap_or_exit();
+                    ::std::process::exit(1);
+                },
+                _ => {
+                    let _ = writeln!(out, "Error spawning: {:?}", e)
+                        .to_exit_code()
+                        .unwrap_or_exit();
+                    ::std::process::exit(1);
+                }
+            }
+        }
+    }
+}
+
diff --git a/bin/core/imag-git/src/ui.rs b/bin/core/imag-git/src/ui.rs
new file mode 100644
index 00000000..31a6960c
--- /dev/null
+++ b/bin/core/imag-git/src/ui.rs
@@ -0,0 +1,26 @@
+//
+// imag - the personal information management suite for the commandline
+// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; version
+// 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+//
+
+use clap::App;
+
+pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
+    app
+}
+
+
diff --git a/imagrc.toml b/imagrc.toml
index 7aebc22d..17f3fd7c 100644
--- a/imagrc.toml
+++ b/imagrc.toml
@@ -338,3 +338,10 @@ Address  : {{ADR}}
 logs = ["default"]
 default = "default"
 
+[git]
+# Configuration for imag-git
+#
+# if this variable is _false_, imag-git will run git in $IMAG_RTP.
+# if this variable is _true_, imag-git will run git in $IMAG_RTP/store
+execute_in_store = false
+