make the output level configurable through LOGLEVEL (--loglevel)

valid values are D/I/W/E

Closes: #490184

6 files changed, 60 insertions, 5 deletions

diff --git a/pbuilder-checkparams b/pbuilder-checkparams
index 51aafab..74666ca 100755
--- a/pbuilder-checkparams
+++ b/pbuilder-checkparams
@@ -132,6 +132,10 @@ while [ -n "$1" ]; do
 	    REMOVEPACKAGES="$2";
 	    shift; shift;
 	    ;;
+	--loglevel)
+		LOGLEVEL="$2"
+		shift; shift;
+		;;
 	--configfile)
 	    if [ ! -f "$2" ]; then
 		log.e "Config file $2 does not exist"
@@ -295,6 +299,16 @@ if [ -z "${CHROOTEXEC}" ]; then
     CHROOTEXEC="chroot $BUILDPLACE "
 fi
 
+# sanity check of LOGLEVEL
+case "$LOGLEVEL" in
+    D|I|W|E) ;;
+    *)  # use log() instead of log.e() to override the buggy LOGLEVEL
+        log "E: A non-valid LOGLEVEL has been specified: '${LOGLEVEL}'."
+        log "E: Valid values are D, I, W, E"
+        exit 1
+        ;;
+esac
+
 # handle 'experimental' specially. -- required for raw pbuilder (create/update) only.
 if [ "$DISTRIBUTION" = "experimental" ]; then
     DISTRIBUTION="sid"
diff --git a/pbuilder-modules b/pbuilder-modules
index 9b5819d..2a5a1fe 100644
--- a/pbuilder-modules
+++ b/pbuilder-modules
@@ -117,15 +117,24 @@ function log() {
 }
 
 log.e() {
-    log "E: $*"
+    case "$LOGLEVEL" in
+        D|I|W|E) log "E: $*" ;;
+    esac
 }
-
 log.w() {
-    log "W: $*"
+    case "$LOGLEVEL" in
+        D|I|W) log "W: $*" ;;
+    esac
 }
-
 log.i() {
-    log "I: $*"
+    case "$LOGLEVEL" in
+        D|I) log "I: $*" ;;
+    esac
+}
+log.d() {
+    case "$LOGLEVEL" in
+        D) log "D: $*" ;;
+    esac
 }
 
 # test whether a directory is empty
diff --git a/pbuilder.8 b/pbuilder.8
index c8be5b1..7c3da1e 100644
--- a/pbuilder.8
+++ b/pbuilder.8
@@ -356,6 +356,18 @@ The messages generated during execution will be written to the specified file,
 and the standard output.
 
 .TP
+.BI "\-\-loglevel " "I"
+Specify how much output you want from pbuilder, valid values are
+.BR E
+(errors only),
+.BR W
+(errors and warnings),
+.BR I
+(errors, warnings and informational) and
+.BR D
+(everything including some debug messages).
+
+.TP
 .BI "\-\-binary\-arch"
 
 Specify to build architecture specific targets instead of all targets.
diff --git a/pbuilderrc b/pbuilderrc
index b4ab567..08f1db0 100644
--- a/pbuilderrc
+++ b/pbuilderrc
@@ -1,6 +1,13 @@
 # pbuilder defaults; edit /etc/pbuilderrc to override these and see
 # pbuilderrc.5 for documentation
 
+# Set how much output you want from pbuilder, valid values are
+# E => errors only
+# W => errors and warnings
+# I => errors, warnings and informational
+# D => all of the above and debug messages
+LOGLEVEL=I
+
 BASETGZ=/var/cache/pbuilder/base.tgz
 #EXTRAPACKAGES=""
 #export DEBIAN_BUILDARCH=athlon
diff --git a/pbuilderrc.5 b/pbuilderrc.5
index 3d461b8..888d160 100644
--- a/pbuilderrc.5
+++ b/pbuilderrc.5
@@ -269,6 +269,17 @@ hooks are not executed.
 For details, see
 .B "pbuilder(8)"
 .TP
+.BI "LOGLEVEL=" "I"
+Specify how much output you want from pbuilder, valid values are
+.BR E
+(errors only),
+.BR W
+(errors and warnings),
+.BR I
+(errors, warnings and informational) and
+.BR D
+(everything including some debug messages).
+.TP
 .BI "MIRRORSITE=" "http://www.jp.debian.org/debian"
 Specify the mirror site which contains the
 main Debian distribution.
diff --git a/t/test_pbuilder-modules b/t/test_pbuilder-modules
index 70504b0..dcc868b 100755
--- a/t/test_pbuilder-modules
+++ b/t/test_pbuilder-modules
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 TD="$(dirname "$0")"
+LOGLEVEL=I
 if [ -n "$PBUILDER_CHECKOUT" ]; then
     . "$TD/testlib.sh"
     . "$PBUILDER_CHECKOUT/pbuilder-modules"
@@ -21,6 +22,7 @@ expect_stderr "W: warning
 E: error" test_information
 
 function test_log() {
+    log.d "debug"  # this should not be printed in LOGLEVEL=I (the default)
     log.i "info"
     log.w "warn"
     log.e "error"