logcat: fix logcatd / logpersist
Removing the rest of liblogcat broke logcatd since LogcatPanic() now
actually calls exit(), whereas logcatd relied on it to return
normally.
We can achieve the expected behavior with a small shell script, so
this change does that as well.
Test: logcatd / logpersist work
Change-Id: Icde36a4811a0db987a801978485e1af1dfc3d38c
diff --git a/logcat/logcatd b/logcat/logcatd
new file mode 100755
index 0000000..622e567
--- /dev/null
+++ b/logcat/logcatd
@@ -0,0 +1,25 @@
+#! /system/bin/sh
+
+# This is primarily meant to be used by logpersist. This script is run as an init service, which
+# first reads the 'last' logcat to persistent storage with `-L` then run logcat again without
+# `-L` to read the current logcat buffers to persistent storage.
+
+has_last="false"
+for arg in "$@"; do
+ if [ "$arg" == "-L" -o "$arg" == "--last" ]; then
+ has_last="true"
+ fi
+done
+
+if [ "$has_last" == "true" ]; then
+ logcat "$@"
+fi
+
+args_without_last=()
+for arg in "$@"; do
+ if [ "$arg" != "-L" -a "$arg" != "--last" ]; then
+ ARGS+=("$arg")
+ fi
+done
+
+exec logcat "${ARGS[@]}"