From 224b75b584d952e09805988d9c7ba6e058e50fb1 Mon Sep 17 00:00:00 2001 From: Luciano Silva Date: Sun, 19 Feb 2017 14:50:49 -0500 Subject: [PATCH] Update readme --- README.md | 8 ++++++-- pipeline.yml | 15 +++++++++++---- 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index 6672b42..83c7a39 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,6 @@ # File URL Resource -Downloads and tracks the update of a single URL-addressable file. +Tracks the update of a single URL-addressable file. This is a useful resource for pipeline development time, while a required artifact is temporarily available from a URL-addressable location, until it is moved to a more robust file management repository such as [git](https://github.com/concourse/git-resource) or [S3](https://github.com/concourse/s3-resource). ## Source Configuration @@ -36,9 +36,13 @@ resources: ### `check`: Check for the latest version of the file. The resource uses `curl` under-the-covers to post a GET request and retrieve the HTTP header info for the file URL provided. -If field `Last-Modified` is returned as part of the HTTP response header, then the resource will use that to build a version number timestamp with format "YYYYMMDDHHMMSS". +If field `Last-Modified` is returned as part of the HTTP response header, then the resource will use that to build a version number timestamp with format "YYYYMMDDHHMMSS". Otherwise, the timestamp string will be built using the request's current time, which will result in a new version being returned every time `check` is executed for that file. +To verify if a file URL returns the `Last-Modified` information in its HTTP response header, issue the `curl` command below and search for field "Last-Modified" in its output. +```curl -I ``` + + ### `in`: Download the latest version of the file. Downloads the latest version of the file issuing a `curl` command under-the-covers. diff --git a/pipeline.yml b/pipeline.yml index d1441e5..c569a5b 100644 --- a/pipeline.yml +++ b/pipeline.yml @@ -6,16 +6,22 @@ resource_types: tag: latest resources: -- name: my-file +- name: my-file-with-last-modified-info + type: file-url + source: + url: https://s3-us-west-1.amazonaws.com/lsilva-bpws/PCF_usage/pcf-sandbox-usage-from-2016-09-01-to-2016-09-30_1475771124.json + filename: pcf-sandbox-usage.json +- name: my-file-without-last-modified-info type: file-url source: url: https://raw.githubusercontent.com/pivotalservices/concourse-curl-resource/master/test/data/pivotal-1.0.0.txt filename: pivotal-1.0.0.txt jobs: -- name: run-and-get-file +- name: run-and-get-files plan: - - get: my-file + - get: my-file-with-last-modified-info + - get: my-file-without-last-modified-info - task: run-and-get-file config: platform: linux @@ -25,7 +31,8 @@ jobs: repository: ubuntu tag: "latest" inputs: - - name: my-file + - name: my-file-with-last-modified-info + - name: my-file-without-last-modified-info run: path: sh args: