Adding more comments, renaming RunningContainer to Container.

This commit is contained in:
Ad5001 2022-01-01 16:41:23 +01:00
parent acdd24b1e3
commit 116857fa47
Signed by: Ad5001
GPG key ID: EF45F9C6AFE20160
3 changed files with 52 additions and 40 deletions

View file

@ -16,34 +16,46 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
property RunningContainer.found false
property RunningContainer.count 0
# Only true when some containers matching all filters passed to the object have been found.
# Type: bool
property Container.found false
property RunningContainer.lines
property RunningContainer.id
property RunningContainer.image
property RunningContainer.created
property RunningContainer.status
property RunningContainer.ports
property RunningContainer.name
# Count of containers matching all filters found.
# Type: int
property Container.count 0
# Summary of all informations found on containers.
# Containers are separated by a new line and values by " ; ".
property Container.lines
# Docker container ids of matched containers.
property Container.id
# Docker container images of matched containers.
property Container.image
# Dates of creation of matched containers.
property Container.created
# Statuses summary of matched containers.
property Container.status
# List of ports of matched containers.
property Container.ports
# Names of matched containers.
property Container.name
# Constructor to fetch one or many running container.
# Arguments are the various filters to find containers. See: RunningContainer.filter for reference.
# Arguments are the various filters to find containers. See: Container.filter for reference.
# NOTE: Multiple containers can be matched. If so, all properties contain the value for each container per line.
# NOTE: If no container is found, a message will be printed, and the constructor will exit with false.
# Signature: ([string[] filters])
RunningContainer.constructor() {
Container.constructor() {
args=( "$@" )
this.lines = "$($(Docker.Utils.DockerCommand) ps --all | awk -F " {2,}" 'NR>1 { print $1,";",$2,";",$3,";",$4,";",$5,";",$6,($7 != "" ? (";"$7) : "") }')"
# Apply filters
for ((i=0; i < ${#args[@]}; i++)); do
filterName=${args[$i]}
filterName="${args[$i]}"
case $filterName in
with_id | with_image | created | with_status | with_port | named)
# The next argument is the value of the filter, so we skip it.
i=$(expr "$i" + 1)
filterValue=${args[$i]}
filterValue="${args[$i]}"
this._baseFilter $filterName "$filterValue"
;;
running | exited | stopped)
@ -65,8 +77,8 @@ RunningContainer.constructor() {
}
# Finds all containers in "docker ps" with a certain field matching a value and returns their lines.
# Signature: (<int fieldId>, <string operation>, <string fieldValue>)
RunningContainer.findLineByValue() {
# Signature: (<int fieldId>, <string operation>, <string fieldValue>) -> string
Container.findLineByValue() {
fieldId=$1
operation=$2
fieldValue=$3
@ -74,12 +86,12 @@ RunningContainer.findLineByValue() {
this.lines | awk -F " ; " '$'"$fieldId"' '"$operation"' "'"$fieldValue"'" { print $1,";",$2,";",$3,";",$4,";",$5,";",$6,($7 != "" ? (";"$7) : "") }'
}
# Internal function which filters. See: RunningContainer.filter for reference.
# Internal function which filters. See: Container.filter for reference.
# Signature: (<string filterName>, [string filterValue])
RunningContainer._baseFilter() {
Container._baseFilter() {
filterName=$1
filterValue=$2
#echo -n "Applying filter $filterName (previous count $(this.lines | wc -l))..." 1>&2
#echo "Applying filter $filterName (previous count $(this.lines | wc -l))..." 1>&2
case $filterName in
with_id)
this.lines = "$(this.findLineByValue 1 == "$filterValue")"
@ -94,7 +106,7 @@ RunningContainer._baseFilter() {
this.lines = "$(this.findLineByValue 5 == "$filterValue")"
;;
running)
this.lines = "$(RunningContainer.findLineByValue 5 ~ "Up")"
this.lines = "$(Container.findLineByValue 5 ~ "Up")"
;;
exited | stopped)
this.lines = "$(this.findLineByValue 5 "~" "Exited")"
@ -115,7 +127,7 @@ RunningContainer._baseFilter() {
# Updates property data from fetched lines.
# No argument
RunningContainer._updateProperties() {
Container._updateProperties() {
if [ ! -z "$(this.lines)" ]; then
this.found = true
this.count = $(this.lines | wc -l)
@ -143,8 +155,8 @@ RunningContainer._updateProperties() {
# - "with_port" to find all having this port forwarded
# - "running" to find all containers running
# - "exited" or "stopped" to find all containers stopped.
# Signature: (<string filterName>, [string filterValue])
RunningContainer.filter() {
# Signature: (<string filterName>, [string filterValue]) -> void
Container.filter() {
filterName=$1
filterValue=$2
this._baseFilter $filterName $filterValue
@ -152,8 +164,8 @@ RunningContainer.filter() {
}
# Applies a docker command to all containers
# Signature: (<string command>, [string[] arguments])
RunningContainer.applyToAll() {
# Signature: (<string command>, [string[] arguments]) -> void|string
Container.applyToAll() {
cmd=$1
args=${@:2}
for container in $(this.id); do
@ -162,38 +174,38 @@ RunningContainer.applyToAll() {
}
# Kills all containers assigned to this instance.
# Signature: ([string[] arguments])
RunningContainer.kill() {
# Signature: ([string[] arguments]) -> void
Container.kill() {
$this.applyToAll kill $@
}
# Removes all containers assigned to this instance.
# Signature: ([string[] arguments])
RunningContainer.rm() {
# Signature: ([string[] arguments]) -> void
Container.rm() {
$this.applyToAll rm $@
}
# Removes all containers assigned to this instance.
# Signature: ([string[] arguments])
RunningContainer.remove() {
# Signature: ([string[] arguments]) -> void
Container.remove() {
$this.applyToAll rm $@
}
# Waits for all containers assigned to this instance to stop and echo their exit code.
# Signature: ([string[] arguments])
RunningContainer.wait() {
# Signature: ([string[] arguments]) -> void
Container.wait() {
$this.applyToAll wait $@
}
# Displays the logs of the containers
# Signature: ([string[] arguments])
RunningContainer.logs() {
# Signature: ([string[] arguments]) -> string
Container.logs() {
$this.applyToAll logs $@
}
# Executes a command to all the containers assigned to the instance.
# Signature: ([string[] options] <string command>)
RunningContainer.exec() {
# Signature: ([string[] options] <string command>) -> void|string
Container.exec() {
cmd=${@[-1]}
options=${@:$(exec ${#@} - 1)}
for container in $(this.id); do

View file

@ -28,6 +28,6 @@ property Docker.Executable "$(which docker)"
static_class Utils "Utils.shc"
class RunningContainer "RunningContainer.shc"
class Container "Container.shc"
class Image "Image.shc"

View file

@ -19,14 +19,14 @@
# This class contains various utils required for Docker.
# Returns the base command for docker, with it's executable and sudo if necessary.
# Returns string.
# Signature: () -> string
Utils.DockerCommand() {
if [ $(Docker.RequiresSudo) == true ]; then echo -n "sudo "; fi
echo "$(Docker.Executable)"
}
# Checks if the user has permission to use docker.
# Retuns bool.
# Signature: () -> bool
Utils.hasPermission() {
$(Utils.DockerCommand) ps 2>&1 | grep -q "permission denied"
# Check status of last command. If permission denied is found, then we do not have permission to use docker.