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From 9492af5e0e09dd66e179ccd8a505ce0b79978c83 Mon Sep 17 00:00:00 2001
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From: Jakub Filak <jfilak@redhat.com>
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Date: Mon, 15 Sep 2014 08:40:05 +0200
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Subject: [ABRT PATCH 58/66] cli: robustize abrt-console-notification.sh
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- don't show any notifications without a terminal connected to stdout
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- don't continue without writable $HOME directory
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- forward all error messages to /dev/null
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Resolves rhbz#1139001
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Signed-off-by: Jakub Filak <jfilak@redhat.com>
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---
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src/cli/abrt-console-notification.sh | 30 ++++++++++++++++++++++++------
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1 file changed, 24 insertions(+), 6 deletions(-)
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diff --git a/src/cli/abrt-console-notification.sh b/src/cli/abrt-console-notification.sh
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index 937abb0..849273c 100755
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--- a/src/cli/abrt-console-notification.sh
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+++ b/src/cli/abrt-console-notification.sh
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@@ -1,21 +1,39 @@
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+# If shell is not connect to a terminal, exit immediately, because this script
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+# should print out ABRT's status and it is senseless to continue without
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+# terminal.
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+tty -s || exit 0
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+
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+# If $HOME is not set, a non human user is logging in to shell but this script
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+# should provide information to human users, therefore exiting immediately
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+# without showing the notification.
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+if [ -z "$HOME" ]; then
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+ exit 0
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+fi
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+
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+if [ -z "$ABRT_DEBUG_LOG" ]; then
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+ ABRT_DEBUG_LOG="/dev/null"
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+fi
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+
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LPATHDIR="$HOME/.cache/abrt"
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SINCEFILE="$LPATHDIR/lastnotification"
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if [ ! -f "$LPATHDIR" ]; then
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- mkdir -p "$LPATHDIR"
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+ # It might happen that user doesn't have write access on his home.
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+ mkdir -p "$LPATHDIR" >"$ABRT_DEBUG_LOG" 2>&1 || exit 0
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fi
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-TMPPATH=`mktemp --tmpdir="$LPATHDIR" lastnotification.XXXXXXXX 2> /dev/null`
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+TMPPATH=`mktemp --tmpdir="$LPATHDIR" lastnotification.XXXXXXXX 2> "$ABRT_DEBUG_LOG"`
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SINCE=0
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if [ -f "$SINCEFILE" ]; then
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- SINCE=`cat $SINCEFILE 2> /dev/null`
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+ SINCE=`cat $SINCEFILE 2>"$ABRT_DEBUG_LOG"`
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fi
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# always update the lastnotification
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if [ -f "$TMPPATH" ]; then
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- date +%s > "$TMPPATH"
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- mv -f "$TMPPATH" "$SINCEFILE"
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+ # Be quite in case of errors and don't scare users by strange error messages.
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+ date +%s > "$TMPPATH" 2>"$ABRT_DEBUG_LOG"
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+ mv -f "$TMPPATH" "$SINCEFILE" >"$ABRT_DEBUG_LOG" 2>&1
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fi
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-abrt-cli status --since="$SINCE" 2> /dev/null
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+abrt-cli status --since="$SINCE" 2>"$ABRT_DEBUG_LOG"
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--
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1.8.3.1
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