From 371186e872df3518bb5a2894f487ec02a42c771a Mon Sep 17 00:00:00 2001
From: Daniel <kingdread@gmx.de>
Date: Tue, 12 May 2020 13:51:09 +0200
Subject: add a -cm filter

---
 raidgrep.1.asciidoc       |  3 +++
 src/fexpr/grammar.lalrpop |  1 +
 src/filters/log.rs        | 14 ++++++++++++++
 src/main.rs               |  1 +
 4 files changed, 19 insertions(+)

diff --git a/raidgrep.1.asciidoc b/raidgrep.1.asciidoc
index 1cbdf85..30e0b2f 100644
--- a/raidgrep.1.asciidoc
+++ b/raidgrep.1.asciidoc
@@ -108,6 +108,9 @@ Those predicates can be used as-is in the filter:
     Include logs from the given bosses. See below for a list of valid boss
     names. Names can also be comma separated.
 
+*-cm*::
+    Include logs that were done with the Challenge Mote enabled.
+
 *-player* 'REGEX'::
     Include logs in which at least one player's account or character name
     matches the given regex. +
diff --git a/src/fexpr/grammar.lalrpop b/src/fexpr/grammar.lalrpop
index f91da19..1540aae 100644
--- a/src/fexpr/grammar.lalrpop
+++ b/src/fexpr/grammar.lalrpop
@@ -55,6 +55,7 @@ LogPredicate: Box<dyn filters::log::LogFilter> = {
     "-log-after" <Date> => filters::log::log_after(<>),
 
     "-boss" <Comma<Boss>> => filters::log::boss(<>),
+    "-cm" => filters::log::challenge_mote(),
 
     "-include" => filters::constant(true),
     "-exclude" => filters::constant(false),
diff --git a/src/filters/log.rs b/src/filters/log.rs
index b9843e9..79513d5 100644
--- a/src/filters/log.rs
+++ b/src/filters/log.rs
@@ -186,6 +186,20 @@ pub fn log_before(when: DateTime<Utc>) -> Box<dyn LogFilter> {
     log_time(None, Some(when))
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+struct CmFilter;
+
+impl Filter<EarlyLogResult, LogResult> for CmFilter {
+    fn filter(&self, log: &LogResult) -> bool {
+        log.is_cm
+    }
+}
+
+/// A filter that only includes logs that had the Challenge Mote turned on.
+pub fn challenge_mote() -> Box<dyn LogFilter> {
+    Box::new(CmFilter)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/src/main.rs b/src/main.rs
index 74fcf7f..e8ed255 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -52,6 +52,7 @@ const APP_NAME: &str = "raidgrep";
 ///     -before DATE            Only include logs from before the given date.
 ///     -after DATE             Only include logs from after the given date.
 ///     -boss BOSSES            Only include logs from the given bosses.
+///     -cm                     Only include logs with challenge mote enabled.
 ///     -player REGEX           Shorthand to check if any player in the log has the given name.
 ///     -include                Always evaluates to including the log.
 ///     -exclude                Always evaluates to excluding the log.
-- 
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