aee18c749b
Check that function calls look like ^function foo {$ in bash8, and fix
all existing failures of that check. Add a note to HACKING.rst
Change-Id: Ic19eecb39e0b20273d1bcd551a42fe400d54e938
131 lines
3.3 KiB
Plaintext
131 lines
3.3 KiB
Plaintext
# lib/config - Configuration file manipulation functions
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# These functions have no external dependencies and the following side-effects:
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#
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# CONFIG_AWK_CMD is defined, default is ``awk``
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# Meta-config files contain multiple INI-style configuration files
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# using a specific new section header to delimit them:
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#
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# [[group-name|file-name]]
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#
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# group-name refers to the group of configuration file changes to be processed
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# at a particular time. These are called phases in ``stack.sh`` but
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# group here as these functions are not DevStack-specific.
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#
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# file-name is the destination of the config file
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# Save trace setting
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C_XTRACE=$(set +o | grep xtrace)
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set +o xtrace
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# Allow the awk command to be overridden on legacy platforms
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CONFIG_AWK_CMD=${CONFIG_AWK_CMD:-awk}
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# Get the section for the specific group and config file
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# get_meta_section infile group configfile
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function get_meta_section {
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local file=$1
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local matchgroup=$2
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local configfile=$3
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[[ -r $file ]] || return 0
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[[ -z $configfile ]] && return 0
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$CONFIG_AWK_CMD -v matchgroup=$matchgroup -v configfile=$configfile '
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BEGIN { group = "" }
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/^\[\[.+\|.*\]\]/ {
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if (group == "") {
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gsub("[][]", "", $1);
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split($1, a, "|");
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if (a[1] == matchgroup && a[2] == configfile) {
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group=a[1]
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}
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} else {
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group=""
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}
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next
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}
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{
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if (group != "")
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print $0
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}
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' $file
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}
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# Get a list of config files for a specific group
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# get_meta_section_files infile group
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function get_meta_section_files {
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local file=$1
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local matchgroup=$2
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[[ -r $file ]] || return 0
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$CONFIG_AWK_CMD -v matchgroup=$matchgroup '
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/^\[\[.+\|.*\]\]/ {
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gsub("[][]", "", $1);
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split($1, a, "|");
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if (a[1] == matchgroup)
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print a[2]
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}
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' $file
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}
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# Merge the contents of a meta-config file into its destination config file
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# If configfile does not exist it will be created.
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# merge_config_file infile group configfile
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function merge_config_file {
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local file=$1
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local matchgroup=$2
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local configfile=$3
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[[ -r $configfile ]] || touch $configfile
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get_meta_section $file $matchgroup $configfile | \
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$CONFIG_AWK_CMD -v configfile=$configfile '
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BEGIN { section = "" }
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/^\[.+\]/ {
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gsub("[][]", "", $1);
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section=$1
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next
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}
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/^ *\#/ {
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next
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}
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/^[^ \t]+/ {
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split($0, d, " *= *")
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print "iniset " configfile " " section " " d[1] " \"" d[2] "\""
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}
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' | while read a; do eval "$a"; done
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}
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# Merge all of the files specified by group
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# merge_config_group infile group [group ...]
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function merge_config_group {
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local localfile=$1; shift
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local matchgroups=$@
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[[ -r $localfile ]] || return 0
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for group in $matchgroups; do
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for configfile in $(get_meta_section_files $localfile $group); do
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if [[ -d $(dirname $configfile) ]]; then
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merge_config_file $localfile $group $configfile
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fi
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done
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done
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}
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# Restore xtrace
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$C_XTRACE
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# Local variables:
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# mode: shell-script
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# End:
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