107 lines
3.1 KiB
Go
107 lines
3.1 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"os"
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"os/exec"
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"strings"
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"syscall"
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"github.com/gogs/git-module"
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)
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const sites_dir = "./sites"
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type DeployError struct {
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code int
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where string
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details string
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command_output string
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}
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func newDeployError(code int, where string, details string, command_output string) DeployError {
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return DeployError{ code: code, where: where, details: details }
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}
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// fileExists returns whether the given file or directory exists.
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func fileExists(path string) (bool, error) {
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_, err := os.Stat(path)
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if err == nil { return true, nil }
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if os.IsNotExist(err) { return false, nil }
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return false, err
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}
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// startServer attempts to start a Lapis server in the given repository.
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func restartServer(name string) DeployError {
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log.Printf("Restarting Lapis server on repository %s...", name)
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old_cwd, _ := os.Getwd()
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defer syscall.Chdir(old_cwd)
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syscall.Chdir(sites_dir+"/"+name)
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out, err := exec.Command("lapis", "build").CombinedOutput()
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if err != nil {
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return newDeployError(1, "restartServer", fmt.Sprintf("Failed to run 'lapis build' in repository '%s'", name), string(out))
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}
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log.Printf("[lapis build] %s", out)
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if !strings.Contains(string(out), "HUP") {
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return newDeployError(1, "restartServer", "'lapis build' command returned unexpected value!", string(out))
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}
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return DeployError{}
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}
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// pullRepo attempts to pull or clone a repository using the given name and url
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func pullRepo(url string, name string) DeployError {
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exists, err := fileExists(sites_dir+"/"+name)
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if err != nil {
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return newDeployError(1, "fileExists",
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fmt.Sprintf("Failed to check whether folder '%s' exists while pulling down repository '%s'!", name, name), "")
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}
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if !exists {
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log.Printf("Cloning repository %s...", name)
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if err = git.Clone(url, sites_dir+"/"+name); err != nil {
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return newDeployError(1, "pullRepo", fmt.Sprintf("Failed to pull down repository '%s'", name), "")
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}
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} else {
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log.Printf("Pulling down repository %s...", name)
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repo,err := git.Open(sites_dir+"/"+name)
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if err != nil {
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return newDeployError(1, "pullRepo", fmt.Sprintf("Failed to open git repository '%s'", name), "")
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}
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repo.Pull()
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}
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return DeployError{}
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}
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func handler(data map[string]interface{}) {
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repository := data["repository"].(map[string]interface{})
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log.Default().Printf("Repo: %s", repository["full_name"])
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deploy_error := pullRepo(repository["ssh_url"].(string), repository["name"].(string))
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if deploy_error.code != 0 {
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log.Default().Printf("Error in %s! [Code: %d] (%s)", deploy_error.where, deploy_error.code, deploy_error.details)
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}
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deploy_error = restartServer(repository["name"].(string))
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if deploy_error.code != 0 {
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log.Printf("Error in %s! [Code: %d] (%s) {Command output: '%s'}",
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deploy_error.where, deploy_error.code, deploy_error.details, deploy_error.command_output)
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}
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}
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func main() {
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request){
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var data map[string]interface{}
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err := json.NewDecoder(r.Body).Decode(&data)
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if err != nil {
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log.Panic(err)
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return
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}
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go handler(data)
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fmt.Fprint(w, "Received!")
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})
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log.Fatal(http.ListenAndServe(":7575", nil))
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}
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