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feat: sammy cli #1

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5 changes: 5 additions & 0 deletions .dockerignore
Original file line number Diff line number Diff line change
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Dockerfile
Makefile
.idea
.gitignore

4 changes: 4 additions & 0 deletions .gitignore
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Expand Up @@ -13,3 +13,7 @@

# Dependency directories (remove the comment below to include it)
# vendor/

sammy
deployment/
.idea/
26 changes: 26 additions & 0 deletions Dockerfile
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# ----
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Since we are building a CLI do you think we need to build a docker image for it at this stage ?

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No but just in case...

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This is firstly for anyone wanted to use it withouth having to install golang and deps... i know we're going to have releases depending on OS environment but just for now, let's keep it like this !

# build executable binary
FROM golang:latest as builder

WORKDIR $GOPATH/src/github.com/osscameroon/
# We only copy our app
COPY . .


WORKDIR $GOPATH/src/github.com/osscameroon/
# We fetch dependencies
RUN go get -d -v

# We compile
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o /go/bin/sammy

# ---
# Let's build our small image
FROM scratch

# Copy our static executable.
COPY --from=builder /go/bin/sammy /go/bin/sammy

# Run the hello binary.
ENTRYPOINT ["/go/bin/sammy"]

11 changes: 11 additions & 0 deletions Makefile
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
docker-build:
docker build --no-cache -t osscameroon/sammy:latest -f Dockerfile .

run:
go run main.go $(ARGS)

build:
go build -o sammy

exec: build
./sammy $(ARGS)
5 changes: 5 additions & 0 deletions go.mod
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
module github.com/osscameroon/sammy

go 1.16

require github.com/go-git/go-git/v5 v5.4.2
101 changes: 101 additions & 0 deletions go.sum
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@@ -0,0 +1,101 @@
github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
github.com/Microsoft/go-winio v0.4.16 h1:FtSW/jqD+l4ba5iPBj9CODVtgfYAD8w2wS923g/cFDk=
github.com/Microsoft/go-winio v0.4.16/go.mod h1:XB6nPKklQyQ7GC9LdcBEcBl8PF76WugXOPRXwdLnMv0=
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github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
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179 changes: 179 additions & 0 deletions main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,179 @@
package main

import (
"fmt"
"log"
"os"
"os/exec"
"path/filepath"

"github.com/go-git/go-git/v5"
)

func main() {
command := os.Args
proceedCommand(command)
}

//proceedCommand will check for given arguments and execute the appropriate operation
func proceedCommand(command []string) {
if len(command) > 1 {
switch command[1] {
case "help":
helperFunc()
case "h":
helperFunc()
case "deploy":
if len(command) > 2 {
fmt.Println("[-] sammy deploy command... ")
deploy(command[2])
} else {
throwError("No Directory provided !", 1)
helperFunc()
}
case "restart-nginx":
fmt.Println("[-] sammy restart-nginx command...")
case "stop":
fmt.Println("[-] sammy stop command...")
case "update-field":
fmt.Println("[-] sammy update-field command...")
default:
throwError("No valid command provided...", 0)
helperFunc()
}
} else {
throwError("No command provided", 0)
helperFunc()
}
}

//throwError will throw an error message and exit depending on the given status code
func throwError(err string, statusCode int) {
if statusCode == 1 {
log.Fatal("[x] Error: " + err)
} else if statusCode == 0 {
log.Println("[x] Error: " + err)
}
os.Exit(statusCode)
}

//execCommand will execute a command with provided program and arguments
func execCommand(program string, args string) {
fmt.Println("[-] Exec: " + program + " " + args)
cmd := exec.Command(program, args)

err := cmd.Run()

if err != nil {
log.Println(err)
}
}

//deploy is the deployment method that will pull the given repo and execute dockers command
func deploy(dir string) {
fmt.Printf("Deploying %s\n", dir)
if _, err := os.Stat(dir); err != nil {
if os.IsNotExist(err) {
throwError("Directory '"+dir+"' not found : "+err.Error(), 1)
} else {
throwError(dir+" : "+err.Error(), 1)
}
}

listDeployFolders(dir)

gitPull(dir)

// We run the docker-compose here
for _, p := range getDockerComposeFiles(dir) {
execCommand("docker-compose", "-f "+p+" up -d")
}

// we run the docker stack deploy here
for _, p := range getDockerStackFiles(dir) {
execCommand("docker stack deploy", "-c "+p)
}
}

//listDeployFolders is an util function to print the content of the config dir and the service dir
func listDeployFolders(dir string) {
servicesDir := dir + "/services"
confDir := dir + "/conf"

fmt.Printf("Config folder %s\n", confDir)
listContent(confDir)

fmt.Printf("Services folder %s\n", servicesDir)
listContent(servicesDir)
}

// getDockerComposeFiles will use findFiles to return all docker-compose files
func getDockerComposeFiles(dir string) []string {
return findFiles(dir, []string{"*-compose.yml", "*-compose.yaml"})
}

//getDockerStackFiles will use findFiles to return all docker-stack files
func getDockerStackFiles(dir string) []string {
return findFiles(dir, []string{"*-stack.yml", "*-stack.yaml"})
}

//findFiles is an util function that will search in the tree of a directory for files matching a pattern
func findFiles(targetDir string, pattern []string) []string {
result := []string{}

for _, v := range pattern {
matches, err := filepath.Glob(targetDir + v)
if err != nil {
throwError("failed to find files: "+err.Error(), 1)
}

if len(matches) != 0 {
fmt.Println("Found: ", matches)
result = append(result, matches...)
}
}
return result
}

//gitPull will pull recent changes from the current dir
func gitPull(targetDir string) {
// We instantiate a new repository targeting the given path (the .git folder)
r, err := git.PlainOpen(targetDir)
if err != nil {
fmt.Println(err)
}
// Get the working directory for the repository
w, err := r.Worktree()
if err != nil {
fmt.Println(err)
}

// Pull the latest changes from the origin remote and merge into the current branch
fmt.Println("git pull origin")
err = w.Pull(&git.PullOptions{RemoteName: "origin"})
if err != nil {
fmt.Println(err)
}
}

//listContent will just list the content of a given directory
func listContent(stringPath string) {
err := filepath.Walk(stringPath,
func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if path != stringPath {
fmt.Println(" " + path)
}
return nil
})
if err != nil {
throwError("failed to list content: "+err.Error(), 1)
}
}

//helperFunc is an util function to list available commands
func helperFunc() {
fmt.Println("\nEx: use sammy...")
}