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md_src_plugins_multifile_README(3elektra) Elektra md_src_plugins_multifile_README(3elektra)

NAME

md_src_plugins_multifile_README - Plugin: multifile

  • infos = Information about the multifile plugin is in keys below
  • infos/author = Thomas thomas.waser@libelektra.org
  • infos/licence = BSD
  • infos/needs =
  • infos/provides = resolver storage
  • infos/recommends =
  • infos/placements = getresolver setresolver commit rollback getstorage setstorage
  • infos/status = maintained conformant compatible specific shelltest tested configurable
  • infos/metadata =
  • infos/description = mounts multiple files within a directory

For some applications it is beneficially to have multiple configuration files. One way to achieve this, is to mount different files for the application.

In some situations we are not able to specify every configuration file with separate mounts because new configuration files might be created any time. Instead we want to include every configuration file matching a given pattern.

The multifile-resolver does so by calling resolver and storage plugins for each file matching a given pattern.

Plugin Configuration

  • recursive: If present, fts (3) will be used to traverse the directory tree and fnmatch to match pattern to the filename. If not present, glob (3) with pattern will be used on the directory
  • pattern: The pattern to be used to match configuration files.
  • storage: The storage plugin to use.
  • resolver: The resolver plugin to use.

Usage

kdb mount -R multifile -c storage='ini',pattern='*/*.ini',resolver='resolver' /path /mountpoint

kdb mount -R multifile -c storage='ini',pattern='*.ini',recursive=,resolver='resolver' /path /mountpoint

Examples

rm -rf ~/.config/multitest || $(exit 0)
mkdir -p ~/.config/multitest || $(exit 0)
echo '[lo]'             >  ~/.config/multitest/lo.ini
echo 'addr = 127.0.0.1' >> ~/.config/multitest/lo.ini
echo 'Link encap = Loopback' >> ~/.config/multitest/lo.ini
echo '[eth0]'                >  ~/.config/multitest/lan.ini
echo 'addr = 192.168.1.216'  >> ~/.config/multitest/lan.ini
echo 'Link encap = Ethernet' >> ~/.config/multitest/lan.ini
echo '[wlan0]'               >  ~/.config/multitest/wlan.ini
echo 'addr = 192.168.1.125'  >> ~/.config/multitest/wlan.ini
echo 'Link encap = Ethernet' >> ~/.config/multitest/wlan.ini
sudo kdb mount -R multifile -c storage="ini",pattern="*.ini",resolver="resolver" multitest user/multi
kdb ls user/multi
#> user/multi/lan.ini/eth0
#> user/multi/lan.ini/eth0/Link encap
#> user/multi/lan.ini/eth0/addr
#> user/multi/lo.ini/lo
#> user/multi/lo.ini/lo/Link encap
#> user/multi/lo.ini/lo/addr
#> user/multi/wlan.ini/wlan0
#> user/multi/wlan.ini/wlan0/Link encap
#> user/multi/wlan.ini/wlan0/addr
kdb set user/multi/lan.ini/eth0/addr 10.0.0.2
kdb get user/multi/lan.ini/eth0/addr
#> 10.0.0.2
echo '[testsection]' >  ~/.config/multitest/test.ini
echo 'key = val'     >> ~/.config/multitest/test.ini
kdb ls user/multi
#> user/multi/lan.ini/eth0
#> user/multi/lan.ini/eth0/Link encap
#> user/multi/lan.ini/eth0/addr
#> user/multi/lo.ini/lo
#> user/multi/lo.ini/lo/Link encap
#> user/multi/lo.ini/lo/addr
#> user/multi/test.ini/testsection
#> user/multi/test.ini/testsection/key
#> user/multi/wlan.ini/wlan0
#> user/multi/wlan.ini/wlan0/Link encap
#> user/multi/wlan.ini/wlan0/addr
kdb rm -r user/multi/test.ini
stat ~/.config/multifile/test.ini
# RET:1
sudo kdb umount user/multi

Recursive:

rm -rf ~/.config/multitest || $(exit 0)
mkdir -p ~/.config/multitest ~/.config/multitest/a/a1/a12 ~/.config/multitest/a/a2/a22 ~/.config/multitest/b/b1|| $(exit 0)
echo "a1key = a1val" > ~/.config/multitest/a/a1/a12/testa1.file
echo "a2key = a2val" > ~/.config/multitest/a/a2/a22/testa2.file
echo "b1key = b1val" > ~/.config/multitest/b/b1/testb1.file
sudo kdb mount -R multifile -c storage="ini",pattern="*.file",recursive=,resolver="resolver" multitest user/multi
kdb ls user/multi
#> user/multi/a/a1/a12/testa1.file/a1key
#> user/multi/a/a2/a22/testa2.file/a2key
#> user/multi/b/b1/testb1.file/b1key
rm -rf ~/.config/multitest
sudo kdb umount user/multi

Limitations

•
You cannot get rid of the configuration file name.
Mon Jan 15 2018 Version 0.8.20