如何在Bash中洗掉和創建GitLab存盤庫并確保操作完成？-有解無憂

語境

我撰寫了一個 Bash 腳本，它會自動從 GitLab 服務器中洗掉一個存盤庫，并創建一個新的 GitLab 存盤庫。

代碼

洗掉存盤庫的代碼是：

delete_existing_repository() {
  local repo_name="$1"
  local repo_username="$2"

  # load personal_access_token
  local personal_access_token
  personal_access_token=$(echo "$GITLAB_PERSONAL_ACCESS_TOKEN_GLOBAL" | tr -d '\r')

  local output
  output=$(curl --silent -H 'Content-Type: application/json' -H "Private-Token: $personal_access_token" -X DELETE "$GITLAB_SERVER_HTTP_URL"/api/v4/projects/"$repo_username"/"$repo_name")

  if [  "$(lines_contain_string '{"message":"404 Project Not Found"}' "${output}")" == "FOUND" ]; then
    echo "ERROR, you tried to delete a GitLab repository that does not exist."
    exit 183
  fi
}

檢查 GitLab 是否成功處理了 repo 推送的函式是：

# Create repository.
  curl --silent -H "Content-Type:application/json" "$GITLAB_SERVER_HTTP_URL/api/v4/projects?private_token=$personal_access_token" -d "{ \"name\": \"$gitlab_repo_name\" }"  > /dev/null 2>&1 &
  sleep 30
  printf "\n Waiting 30 secs untill repo is (re)created in GitLab server."

問題

問題是我在確定何時成功洗掉 GitLab 存盤庫以及何時成功創建和處理它時遇到了一些困難。現在，我只是“蠻力”等待 30 秒，因為到目前為止，我的系統已經足夠快，可以在這段時間內完成。但是，這是低效且不可靠的，因為它也應該在較慢的系統上作業。因此我想問：

如何在 Bash 中洗掉和創建 GitLab 存盤庫，以便在命令結束時，repo 被完全洗掉并（重新）成功創建？

uj5u.com熱心網友回復：

部分答案：完全創建的 GitLab 存盤庫將是可克隆的。要測驗創建是否已完成，請嘗試克隆 repo。這只有在完全創建存盤庫的情況下才能成功，并且由于您正在嘗試克隆一個空的存盤庫，所以它會很快。

不過，我沒有驗證洗掉的建議，因為克隆失敗不會確認洗掉已完成，盡管創建失敗可能表明它不是。

但是，如果在您的 bash 腳本結束時，克隆按預期生成了一個空的 repo，那么您肯定知道洗掉重新創建操作作為一個整體是成功的。

uj5u.com熱心網友回復：

描述

為了確保 bash 代碼等到在 GitLab 中成功創建或洗掉存盤庫，我撰寫了一個方法，FOUND如果存盤庫存在于 GitLab 服務器中，則回傳該方法，NOTFOUND如果它不存在。接下來我撰寫了兩個方法來檢查n存盤庫是否存在/不存在的時間，中間有 5 秒的暫停：

解決方案

# run with:
# bash -c 'source src/import.sh && wait_until_repo_exists_in_gitlab nonexistant_repo'
# bash -c 'source src/import.sh && wait_until_repo_exists_in_gitlab sponsor_example'
wait_until_repo_exists_in_gitlab(){
  local gitlab_repo_name="$1"

  # Specify how many retries are allowed.
  local nr_of_retries=10
  local termination_limit="$((nr_of_retries-2))"
  local i="0"

  while [ $i -lt $nr_of_retries ]; do
      local found_repo="$(repo_exists_in_gitlab_server "$gitlab_repo_name")"
      i=$[$i 1]
      if [ "$found_repo" == "FOUND" ]; then
          break
      elif [[ "$i" == "$termination_limit" ]]; then
          echo "Error, did not find repo in GitLab server, within permitted timeframe."
          exit 6
          break
      fi
      sleep 5
  done
}

# bash -c 'source src/import.sh && wait_until_repo_does_not_exist_in_gitlab nonexistant_repo'
# bash -c 'source src/import.sh && wait_until_repo_does_not_exist_in_gitlab sponsor_example'
wait_until_repo_does_not_exist_in_gitlab(){
  local gitlab_repo_name="$1"

  # Specify how many retries are allowed.
  local nr_of_retries=10
  local termination_limit="$((nr_of_retries-2))"
  local i="0"

  while [ $i -lt $nr_of_retries ]; do
      local found_repo="$(repo_exists_in_gitlab_server "$gitlab_repo_name")"
      i=$[$i 1]
      if [ "$found_repo" == "NOTFOUND" ]; then
          break
      elif [[ "$i" == "$termination_limit" ]]; then
          echo "Error, still found the repo in GitLab server, within permitted timeframe."
          exit 6
          break
      fi
      sleep 5
  done
}

# run with:
# bash -c 'source src/import.sh && repo_exists_in_gitlab_server nonexistant_repo'
# bash -c 'source src/import.sh && repo_exists_in_gitlab_server sponsor_example'
repo_exists_in_gitlab_server(){
  local gitlab_repo_name="$1"

  local temporary_test_filepath=/tmp/TESTRET
  local expected_if_non_existant="fatal: repository '$GITLAB_SERVER_HTTP_URL/$GITLAB_SERVER_ACCOUNT_GLOBAL/$gitlab_repo_name/' not found"
  local acceptable_warning="warning: redirecting to $GITLAB_SERVER_HTTP_URL/$GITLAB_SERVER_ACCOUNT_GLOBAL/$gitlab_repo_name.git/"

  # Delete file exists.
  delete_file_if_it_exists $temporary_test_filepath

  # Check if gitlab repo exists and output any errors to file. 
  something=$(git ls-remote http://$GITLAB_SERVER_ACCOUNT_GLOBAL:$GITLAB_PERSONAL_ACCESS_TOKEN_GLOBAL@$GITLAB_SERVER/$GITLAB_SERVER_ACCOUNT_GLOBAL/$gitlab_repo_name 2> $temporary_test_filepath)
  # Used to verify it throws an error if auth is invalid.
  #something=$(git ls-remote http://$GITLAB_SERVER_ACCOUNT_GLOBAL:$GITLAB_PERSONAL_ACCESS_TOKEN_GLOBALasdf@$GITLAB_SERVER/$GITLAB_SERVER_ACCOUNT_GLOBAL/$gitlab_repo_name 2> $temporary_test_filepath)
  

  # Check if the output file contains an error.
  if [[ -n `cat $temporary_test_filepath` ]]; then
    # Check if the error indicates the repo does not exist, or whether there is another issue.
    if [ "$(file_contains_string "$expected_if_non_existant" "$temporary_test_filepath")" != "FOUND" ]; then
      # An error is thrown, check if it is an acceptable error or not.
      if [ "$acceptable_warning" == "$(cat $temporary_test_filepath)" ]; then
        # This means the repository exists.    
        echo "FOUND"
      else
        echo 'ERROR, checking if GitLab repo exists yielded an error other than "the repo does not exist"'
        echo "$(cat $temporary_test_filepath)."
        echo "$acceptable_warning."
        exit 5
      fi
    elif [ "$(file_contains_string "$expected_if_non_existant" "$temporary_test_filepath")" == "FOUND" ]; then
      # The output file contained the expected error, for when a repo does not exist.
      echo "NOTFOUND"
    else
      echo "Error, checking if a GitLab repo exists in server, yielded an unexpected output error:"
      echo "$(cat $temporary_test_filepath)."
    fi
  else
    echo "FOUND"
  fi

  # Delete file exists.
  delete_file_if_it_exists $temporary_test_filepath
}

用法

創建 GitLab 存盤庫并等待它創建完成的代碼：

# Create repository.
  curl --silent -H "Content-Type:application/json" "$GITLAB_SERVER_HTTP_URL/api/v4/projects?private_token=$personal_access_token" -d "{ \"name\": \"$gitlab_repo_name\" }"  > /dev/null 2>&1 &
  wait_until_repo_exists_in_gitlab "$gitlab_repo_name"

洗掉 repo 并等待它被洗掉的代碼：

#######################################
# Checks if repository exists in the GitLab server and deletes it. Otherwise, an  
# error is shown.
# How to run:
#  source src/import.sh src/helper/GitLab/helper_gitlab_modify.sh && delete_existing_repository_from_gitlab 
#  "sponsor_example" "root"
# Local variables:
#  gitlab_repo_name
#  gitlab_username
#  personal_access_token
# Globals:
#  GITLAB_PERSONAL_ACCESS_TOKEN_GLOBAL
#  GITLAB_SERVER_HTTP_URL
# Arguments:
#  Name of the GitLab repository.
#  The GitLab username.
# Returns:
#  0 if funciton was evaluated succesfull.
#  183 if an attempt was made to delete a GitLab repository that did not exist.
# Outputs:
#  None.
#######################################
# run with:
# bash -c 'source src/import.sh src/helper/GitLab/helper_gitlab_modify.sh && delete_existing_repository_from_gitlab new_repo root'
delete_existing_repository_from_gitlab() {
  local repo_name="$1"
  local repo_username="$2"

  # load personal_access_token
  local personal_access_token
  personal_access_token=$(echo "$GITLAB_PERSONAL_ACCESS_TOKEN_GLOBAL" | tr -d '\r')

  local output
  output=$(curl --silent -H 'Content-Type: application/json' -H "Private-Token: $personal_access_token" -X DELETE "$GITLAB_SERVER_HTTP_URL"/api/v4/projects/"$repo_username"/"$repo_name")

  if [  "$(lines_contain_string '{"message":"404 Project Not Found"}' "${output}")" == "FOUND" ]; then
    echo "ERROR, you tried to delete a GitLab repository that does not exist."
    exit 183
  fi

  wait_until_repo_does_not_exist_in_gitlab "$gitlab_repo_name"
}

轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/517593.html

標籤：重击GitLab等待

上一篇：使用AWK在兩個檔案之間進行部分字串搜索

下一篇：對視頻缺乏經驗，正在尋求處理不正確的avi幀率和可能的替代方案的建議