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New link handling

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This commit is contained in:
Darren 'Tadgy' Austin 2018-04-17 18:00:48 +01:00
commit 566afc42a8
1 changed files with 14 additions and 9 deletions
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lumberjack
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@ -20,7 +20,7 @@ display_help() {
stdin or a FIFO and write a log line to a log file based upon the <basedir> and
<template>.
Options (which are optional):
Options (all of which are optional):
-ca "<arg>" Set the compression command arguments. Default: ${LJ_COMPRESSOR_ARGS[@]}.
The quotes are required if more than one <arg> is supplied.
-cc <util> Set the compression command to use. Default: $LJ_COMPRESSOR.
@ -32,7 +32,10 @@ display_help() {
-j <jobs> Maximum number of compression jobs to have active at once.
Default: $LJ_MAXJOBS. Don't set this too high.
-l <link> Create a symlink named <link> to the currently active log file.
The symlink is created in the same directory as the log file.
The <link> is created relative to <basedir>. The link name may
include the same {} sequence and %-escaped formatting as the
<template> - see below for an explanation of these expansions.
WARNING: The (expanded) location of this link will be WIPED OUT!
-r Raw logging mode. In this mode, no processing of the log line
for an httpd VirtualHost site identifier is performed - log
lines are written verbatim to the log filename constructed from
@ -46,7 +49,7 @@ display_help() {
-- Cease option processing and begin argument parsing.
Option processing ceases with the first non-option argument or --.
Arguments (which are required):
Arguments (all of which are mandatory):
<basedir> The base directory of where to write the log files.
<template> The filename template. When normal mode, the template must
include at least one occurance of '{}', which is replaced with
@ -244,7 +247,8 @@ while :; do
-l)
# Set the link name to use.
[[ ! "$2" ]] && die "missing argument to -l"
[[ "$2" =~ .*/ ]] && die "$2: link name cannot include '/'"
[[ "${2:0:1}" == "/" ]] && die "$2: link name cannot begin with '/'"
[[ "${2: -1:1}" == "/" ]] && die "$2: link name cannot end with '/'"
LJ_LINKFILE="$2"
shift 2
continue
@ -306,7 +310,7 @@ LJ_BASEDIR="$1"
[[ ! -e "$LJ_BASEDIR" ]] && die "$LJ_BASEDIR: base directory does not exist"
[[ ! -d "$LJ_BASEDIR" ]] && die "$LJ_BASEDIR: not a directory"
LJ_TEMPLATE="$2"
[[ "${LJ_TEMPLATE: -1:1}" = "/" ]] && die "$LJ_TEMPLATE: template cannot end with '/'"
[[ "${LJ_TEMPLATE: -1:1}" == "/" ]] && die "$LJ_TEMPLATE: template cannot end with '/'"
(( LJ_RAW == 0 )) && [[ ! "$LJ_TEMPLATE" =~ .*\{\} ]] && die "$LJ_TEMPLATE: template must include at least one '{}'"
(( LJ_RAW != 0 )) && [[ "$LJ_TEMPLATE" =~ .*\{\} ]] && die "$LJ_TEMPLATE: template cannot include '{}'"
@ -442,11 +446,12 @@ while :; do
# Create symlink to the currently active log file.
[[ "$LJ_LINKFILE" ]] && {
[[ "$(readlink -n "${LJ_FILENAME%/*}/$LJ_LINKFILE")" != "${LJ_FILENAME##*/}" ]] && {
LJ_LINKFILE_EXPANDED=="$(printf "%($LJ_LINKFILE)T")"
[[ "$(readlink -n "${LJ_BASEDIR/${LJ_LINKFILE_EXPANDED//\{\}/$LJ_SITE}")" != "${LJ_FILENAME##*/}" ]] && {
# Note: This will clobber anything that already exists with the link name.
rm -rf "${LJ_FILENAME%/*}/$LJ_LINKFILE"
ln -sf "${LJ_FILENAME##*/}" "${LJ_FILENAME%/*}/$LJ_LINKFILE" 2>/dev/null || {
syslog "error" "failed to create link: ${LJ_FILENAME%/*}/$LJ_LINKFILE"
rm -rf "${LJ_BASEDIR/${LJ_LINKFILE_EXPANDED//\{\}/$LJ_SITE}"
ln -sfr "$LJ_FILENAME" "${LJ_BASEDIR/${LJ_LINKFILE_EXPANDED//\{\}/$LJ_SITE}" 2>/dev/null || {
syslog "error" "failed to create link: ${LJ_BASEDIR/${LJ_LINKFILE_EXPANDED//\{\}/$LJ_SITE}"
}
}
}