https://github.com/libre-devops/terraform-external-timestamp

A module used to generate a timestamp. This is useful due to the fact it runs at plan time rather than apply ⌚
https://github.com/libre-devops/terraform-external-timestamp

Last synced: about 1 year ago
JSON representation

A module used to generate a timestamp. This is useful due to the fact it runs at plan time rather than apply ⌚

• Host: GitHub
• URL: https://github.com/libre-devops/terraform-external-timestamp
• Owner: libre-devops
• License: mit
• Created: 2025-05-03T21:52:46.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-05-03T22:35:11.000Z (about 1 year ago)
• Last Synced: 2025-05-03T23:25:24.354Z (about 1 year ago)
• Language: PowerShell
• Size: 26.4 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

Awesome Lists containing this project

README

          
```hcl

###############################################################################

# Detect the OS

###############################################################################

# Full path to the helper that exists only on Windows

locals {

  windows_helper = "${abspath(path.module)}\\printf.cmd"

}

# If the helper file exists, we’re on Windows; otherwise assume Linux

data "external" "detect_os" {

  program = fileexists(local.windows_helper) ? [local.windows_helper, "{\"os\":\"Windows\"}"] : ["printf", "{\"os\":\"Linux\"}"]

}

locals {

  os         = data.external.detect_os.result.os

  is_windows = lower(local.os) == "windows"

  is_linux   = lower(local.os) == "linux"

}

# Linux branch

data "external" "generate_linux_timestamp" {

  count       = local.is_linux ? 1 : 0

  working_dir = var.working_dir == null ? path.module : var.working_dir

  program = [

    "bash",

    "-c",

    "DATE=$(date '${var.linux_timestamp_format}'); printf '{\"id\":\"%s\",\"timestamp\":\"%s\"}' \"$DATE\" \"$DATE\""

  ]

}

# Windows branch

data "external" "generate_windows_timestamp" {

  count       = local.is_windows ? 1 : 0

  working_dir = var.working_dir == null ? path.module : var.working_dir

  program = [

    "powershell",

    "-Command",

    "$date = Get-Date -Format '${var.windows_timestamp_format}'; $json = @{ id = $date; timestamp = $date } | ConvertTo-Json -Compress; Write-Output $json"

  ]

}

###############################################################################

# Normalise the result

###############################################################################

locals {

  timestamp = local.is_linux ? lower(data.external.generate_linux_timestamp[0].result.timestamp) : lower(data.external.generate_windows_timestamp[0].result.timestamp)

}

```

## Requirements

No requirements.

## Providers

| Name | Version |

|------|---------|

|  [external](#provider\_external) | n/a |

## Modules

No modules.

## Resources

| Name | Type |

|------|------|

| [external_external.detect_os](https://registry.terraform.io/providers/hashicorp/external/latest/docs/data-sources/external) | data source |

| [external_external.generate_linux_timestamp](https://registry.terraform.io/providers/hashicorp/external/latest/docs/data-sources/external) | data source |

| [external_external.generate_windows_timestamp](https://registry.terraform.io/providers/hashicorp/external/latest/docs/data-sources/external) | data source |

## Inputs

| Name | Description | Type | Default | Required |

|------|-------------|------|---------|:--------:|

|  [linux\_timestamp\_format](#input\_linux\_timestamp\_format) | The format of the timestamp to generate on Linux | `string` | `"+%d-%m-%Y:%H:%M"` | no |

|  [windows\_timestamp\_format](#input\_windows\_timestamp\_format) | The format of the timestamp to generate on Windows | `string` | `"dd-MM-yyyy:HH:mm"` | no |

|  [working\_dir](#input\_working\_dir) | The working directory for the module | `string` | `null` | no |

## Outputs

| Name | Description |

|------|-------------|

|  [is\_linux](#output\_is\_linux) | True if the OS is Linux |

|  [is\_windows](#output\_is\_windows) | True if the OS is Windows |

|  [os](#output\_os) | The OS that is running the commands |

|  [timestamp](#output\_timestamp) | A random string generated by the external data source |