1 files changed, 121 insertions, 0 deletions
diff --git a/bin/core/imag-store/src/util.rs b/bin/core/imag-store/src/util.rs
new file mode 100644
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--- /dev/null
+++ b/bin/core/imag-store/src/util.rs
@@ -0,0 +1,121 @@
+//
+// imag - the personal information management suite for the commandline
+// Copyright (C) 2015, 2016 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 std::borrow::Cow;
+use std::collections::btree_map::{BTreeMap, Entry};
+use std::str::Split;
+
+use clap::ArgMatches;
+use toml::Value;
+
+use libimagutil::key_value_split::IntoKeyValue;
+
+pub fn build_toml_header(matches: &ArgMatches, mut header: Value) -> Value {
+    debug!("Building header from cli spec");
+    if let Some(headerspecs) = matches.values_of("header") {
+        let kvs = headerspecs.into_iter()
+                            .filter_map(|hs| {
+                                debug!("- Processing: '{}'", hs);
+                                let kv = String::from(hs).into_kv();
+                                debug!("-        got: '{:?}'", kv);
+                                kv
+                            });
+        for tpl in kvs {
+            let (key, value) = tpl.into();
+            debug!("Splitting: {:?}", key);
+            let mut split = key.split('.');
+            match (split.next(), &mut header) {
+                (Some(cur), &mut Value::Table(ref mut hdr)) =>
+                    insert_key_into(String::from(cur), &mut split, Cow::Owned(value), hdr),
+                _ => { }
+            }
+        }
+    }
+
+    debug!("Header = {:?}", header);
+    header
+}
+
+fn insert_key_into<'a>(current: String,
+                   rest_path: &mut Split<char>,
+                   value: Cow<'a, str>,
+                   map: &mut BTreeMap<String, Value>) {
+    let next = rest_path.next();
+
+    if next.is_none() {
+        debug!("Inserting into {:?} = {:?}", current, value);
+        map.insert(current, parse_value(value));
+    } else {
+        debug!("Inserting into {:?} ... = {:?}", current, value);
+        match map.entry(current) {
+            Entry::Occupied(ref mut e) => {
+                match *e.get_mut() {
+                    Value::Table(ref mut t) => {
+                        insert_key_into(String::from(next.unwrap()), rest_path, value, t);
+                    },
+                    _ => unreachable!(),
+                }
+            },
+            Entry::Vacant(v) => { v.insert(Value::Table( {
+                let mut submap = BTreeMap::new();
+                insert_key_into(String::from(next.unwrap()), rest_path, value, &mut submap);
+                debug!("Inserting submap = {:?}", submap);
+                submap }));
+            }
+        }
+    }
+}
+
+fn parse_value(value: Cow<str>) -> Value {
+    use std::str::FromStr;
+
+    fn is_ary(v: &str) -> bool {
+        v.starts_with('[') && v.ends_with(']') && v.len() >= 3
+    }
+
+    if value == "true" {
+        debug!("Building Boolean out of: {:?}...", value);
+        Value::Boolean(true)
+    } else if value == "false" {
+        debug!("Building Boolean out of: {:?}...", value);
+        Value::Boolean(false)
+    } else if is_ary(&value) {
+        debug!("Building Array out of: {:?}...", value);
+        let sub = &value[1..(value.len()-1)];
+        Value::Array(sub.split(',').map(|x| parse_value(Cow::from(x))).collect())
+    } else {
+        FromStr::from_str(&value[..])
+            .map(|i: i64| {
+                debug!("Building Integer out of: {:?}...", value);
+                Value::Integer(i)
+            })
+            .unwrap_or_else(|_| {
+                FromStr::from_str(&value[..])
+                    .map(|f: f64| {
+                        debug!("Building Float out of: {:?}...", value);
+                        Value::Float(f)
+                    })
+                    .unwrap_or_else(|_| {
+                        debug!("Building String out of: {:?}...", value);
+                        Value::String(value.into_owned())
+                    })
+            })
+    }
+}
+