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Code Issues 19 Releases Wiki Activity

nuxsh: Added support for @command keyword and use it

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Signed-off-by: Tony Tkacik <tonydamage@gmail.com>
This commit is contained in:
Tony Tkáčik 2020-01-01 13:12:55 +01:00
parent 27f3986528
commit e148c76fbe
6 changed files with 103 additions and 82 deletions
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87
bin/vfs
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@ -30,35 +30,42 @@ function vfs.path.real file {
}
@namespace task. {
## list::
## Lists all **mergerfs** based virtual filesystems managed by **vfs** tool
function :list {
echo "1"
}
@command list {
echo "1"
}
## info::
## Displays info about current path
function :info {
nux.log debug "VFS mount: ${CURRENT_MOUNT}";
echo "path:" $CURRENT_MOUNT;
echo "sources:"
for key in "${!CURRENT_SOURCES[@]}"; do
echo " $key: ${CURRENT_SOURCES[$key]}";
done
@command info {
nux.log debug "VFS mount: ${CURRENT_MOUNT}";
echo "path:" $CURRENT_MOUNT;
echo "sources:"
for key in "${!CURRENT_SOURCES[@]}"; do
echo " $key: ${CURRENT_SOURCES[$key]}";
done
}
}
## switch:: <storage> <path+>
## Moves specified **paths** to named **storage** for particular **vfs**.
## This is ideal for marking files as keep or migrating them to remote,
## rather then local.
function :switch storage {
###
### The switch uses **.vfs.sources** file to determine location of target
### directory and creates necessary directory structures in target directory
### to preserve local rooted path.
###
### FIXME: Switch does not support merging of directories
@command switch storage {
target="$(vfs.path "$storage")"
nux.log debug "Target path $target"
for arg_path in "$@" ; do
rooted_path="/$(realpath -Lms --relative-to="$CURRENT_MOUNT" ${arg_path%/})";
rooted_path="/$(realpath -m --relative-to="$CURRENT_MOUNT" ${arg_path%/})";
target_dir="${target}${rooted_path%/*}"
real_file="$(vfs.path.real "$rooted_path")"
nux.log trace "Rooted path: $rooted_path";
@ -73,35 +80,37 @@ function vfs.path.real file {
fi
done
}
## mount:: <target> <name:path> [<name:path>+]
## Creates **mergerfs** mount for specified pairs of storage **name** and
## **path**
function :mount target {
local mount_paths="";
nux.log debug "MergerFS mount: $target"
## Mounts **mergerfs** on **target**. The mount is merge of specified pairs
## of storage **name** and **path**.
##
source_tempfs="$(mktemp -d)"
for source in "$@" ; do
source_name="${source%%:*}"
source_path="$(realpath "${source#*:}")"
source_path="${source_path%/}"
nux.log debug " Source: $source_name Path: $source_path";
mount_paths="$mount_paths:${source_path}"
echo "$source_name $source_path" >> "$source_tempfs/.vfs.sources"
done
echo "temp $source_tempfs" >> "$source_tempfs/$VFS_SOURCES_FILE="
@command mount target {
local mount_paths="";
nux.log debug "MergerFS mount: $target"
mergerfs_options="$source_tempfs:${mount_paths}"
nux.log debug "MergerFS command:" $mergerfs_options;
mergerfs "$mergerfs_options" "$target"
(cd $target; vfs info )
source_tempfs="$(mktemp -d)"
for source in "$@" ; do
source_name="${source%%:*}"
source_path="$(realpath "${source#*:}")"
source_path="${source_path%/}"
nux.log debug " Source: $source_name Path: $source_path";
mount_paths="$mount_paths:${source_path}"
echo "$source_name $source_path" >> "$source_tempfs/.vfs.sources"
done
echo "temp $source_tempfs" >> "$source_tempfs/$VFS_SOURCES_FILE="
mergerfs_options="$source_tempfs:${mount_paths}"
nux.log debug "MergerFS command:" $mergerfs_options;
mergerfs "$mergerfs_options" "$target"
(cd $target; vfs info )
}
## unmount:: <target>
## Unmounts target VFS filesystem.
function :unmount target {
fusermount -u "$target"
nuxfs.info "${CURRENT_SOURCES[temp]}" removing temporary metadata.
rm -rf "${CURRENT_SOURCES[temp]}"
@command :unmount target {
fusermount -u "$target"
nuxfs.info "${CURRENT_SOURCES[temp]}" removing temporary metadata.
rm -rf "${CURRENT_SOURCES[temp]}"
}
}