ci: initial setup (#1)

.chglog/CHANGELOG.tpl.md

@@ -0,0 +1,23 @@
+# Changelog
+
+{{ range .Versions -}}
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]({{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}){{ else }}{{ .Tag.Name }}{{ end }} ({{ datetime "2006-01-02" .Tag.Date }})
+
+{{ range .CommitGroups -}}
+### {{ .Title }}
+
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+
+{{- if .NoteGroups -}}
+{{ range .NoteGroups -}}
+### {{ .Title }}
+
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}

.chglog/config.yml

@@ -0,0 +1,25 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/owncloud-ci/retry
+options:
+  commit_groups:
+    title_maps:
+      feat: Features
+      fix: Bug Fixes
+      perf: Performance Improvements
+      refactor: Code Refactoring
+      chore: Others
+      test: Testing
+      ci: CI Pipeline
+      docs: Documentation
+  header:
+    pattern: "^(\\w*)(?:\\(([\\w\\$\\.\\-\\*\\s]*)\\))?\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Scope
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE

.drone.star

@@ -0,0 +1,126 @@
+def main(ctx):
+    before = testing(ctx)
+
+    stages = []
+
+    after = release(ctx) + notification(ctx)
+
+    for b in before:
+        for s in stages:
+            s["depends_on"].append(b["name"])
+
+    for s in stages:
+        for a in after:
+            a["depends_on"].append(s["name"])
+
+    return before + stages + after
+
+def testing(ctx):
+    return [{
+        "kind": "pipeline",
+        "type": "docker",
+        "name": "testing",
+        "platform": {
+            "os": "linux",
+            "arch": "amd64",
+        },
+        "steps": [
+            {
+                "name": "lint",
+                "image": "koalaman/shellcheck-alpine:stable",
+                "commands": [
+                    "shellcheck ./retry",
+                ],
+            },
+        ],
+        "trigger": {
+            "ref": [
+                "refs/heads/master",
+                "refs/tags/**",
+                "refs/pull/**",
+            ],
+        },
+    }]
+
+def release(ctx):
+  return [{
+    "kind": "pipeline",
+    "type": "docker",
+    "name": "release",
+    "steps": [
+        {
+            "name": "changelog",
+            "image": "thegeeklab/git-chglog",
+            "commands": [
+                "git fetch -tq",
+                "git-chglog --no-color --no-emoji %s" % (ctx.build.ref.replace("refs/tags/", "") if ctx.build.event == "tag" else "--next-tag unreleased unreleased"),
+                "git-chglog --no-color --no-emoji -o CHANGELOG.md %s" % (ctx.build.ref.replace("refs/tags/", "") if ctx.build.event == "tag" else "--next-tag unreleased unreleased"),
+            ]
+        },
+        {
+           "name": "release",
+           "image": "plugins/github-release",
+           "settings": {
+               "api_key": {
+                   "from_secret": "github_token",
+               },
+               "note": "CHANGELOG.md",
+               "overwrite": True,
+               "title": ctx.build.ref.replace("refs/tags/", ""),
+               "files": [
+                   "retry"
+                ],
+           },
+           "when": {
+             "ref": [
+                "refs/tags/**",
+             ],
+          },
+        }
+    ],
+    "depends_on": [
+        "testing",
+    ],
+    "trigger": {
+        "ref": [
+            "refs/heads/master",
+            "refs/tags/**",
+            "refs/pull/**",
+        ],
+    },
+  }]
+
+def notification(ctx):
+  return [{
+    "kind": "pipeline",
+    "type": "docker",
+    "name": "notify",
+    "clone": {
+        "disable": True,
+    },
+    "steps": [
+        {
+            "name": "notify",
+            "image": "plugins/slack",
+            "settings": {
+            "webhook": {
+                "from_secret": "private_rocketchat",
+            },
+            "channel": "builds",
+            },
+        }
+    ],
+    "depends_on": [
+        "release",
+    ],
+    "trigger": {
+        "ref": [
+            "refs/heads/master",
+            "refs/tags/**",
+        ],
+        "status": [
+            "success",
+            "failure",
+        ],
+    },
+  }]

.github/settings.yml

@@ -0,0 +1,58 @@
+---
+repository:
+  name: retry
+  description: Retry any shell command
+  homepage: https://hub.docker.com/r/owncloudci/retry
+  topics: tools
+
+  private: false
+  has_issues: true
+  has_projects: false
+  has_wiki: false
+  has_downloads: false
+
+  default_branch: master
+
+  allow_squash_merge: true
+  allow_merge_commit: true
+  allow_rebase_merge: true
+
+labels:
+  - name: bug
+    color: d73a4a
+    description: Something isn't working
+  - name: documentation
+    color: 0075ca
+    description: Improvements or additions to documentation
+  - name: duplicate
+    color: cfd3d7
+    description: This issue or pull request already exists
+  - name: enhancement
+    color: a2eeef
+    description: New feature or request
+  - name: good first issue
+    color: 7057ff
+    description: Good for newcomers
+  - name: help wanted
+    color: 008672
+    description: Extra attention is needed
+  - name: invalid
+    color: e4e669
+    description: This doesn't seem right
+  - name: question
+    color: d876e3
+    description: Further information is requested
+  - name: wontfix
+    color: ffffff
+    description: This will not be worked on
+
+branches:
+  - name: master
+    protection:
+      required_pull_request_reviews: null
+      required_status_checks:
+        strict: true
+        contexts:
+          - continuous-integration/drone/pr
+      enforce_admins: null
+      restrictions: null

.gitignore

@@ -0,0 +1,2 @@
+.drone.yml
+CHANGELOG.md

.renovaterc.json

@@ -0,0 +1,4 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["github>owncloud-ci/renovate-presets:docker"]
+}

LICENSE

@@ -0,0 +1,190 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
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+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2021 ownCloud GmbH
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

@@ -1,23 +1,27 @@
-retry - The command line retry tool
+# retry
-------------------------------------------
+
+[![Build Status](https://drone.owncloud.com/api/badges/owncloud-ci/retry/status.svg)](https://drone.owncloud.com/owncloud-ci/retry/)
+[![Source: GitHub](https://img.shields.io/badge/source-github-blue.svg?logo=github&logoColor=white)](https://github.com/owncloud-ci/retry)
+[![License: Apache-2.0](https://img.shields.io/github/license/owncloud-ci/retry)](https://github.com/owncloud-ci/retry/blob/main/LICENSE)
 
 Retry any shell command with exponential backoff or constant delay.
 
-### Instructions
+## Instructions
 
 Install:
 
 retry is a shell script, so drop it somewhere and make sure it's added to your $PATH. Or you can use the following one-liner:
 
-```sh
+```Shell
-sudo sh -c "curl https://raw.githubusercontent.com/owncloud-ops/retry/master/retry -o /usr/local/bin/retry && chmod +x /usr/local/bin/retry"
+curl -SsL -o /usr/local/bin/retry https://raw.githubusercontent.com/owncloud-ops/retry/master/retry && chmod +x /usr/local/bin/retry"
 ```
 
-### Usage
+## Usage
 
 Help:
 
-`retry -?`
+```Shell
+retry -?
 
 Usage: retry [options] -- execute command
     -h, -?, --help
@@ -27,18 +31,22 @@ Help:
     -m, --min=secs                   Exponential Backoff: minimum sleep amount (seconds): Default 0.3
     -x, --max=secs                   Exponential Backoff: maximum sleep amount (seconds): Default 60
     -f, --fail="script +cmds"        Fail Script: run in case of final failure
+```
 
-### Examples
+## Examples
 
 No problem:
 
-`retry echo u work good`
+```Shell
+retry echo u work good
 
 u work good
+```
 
 Test functionality:
 
-`retry 'echo "y u no work"; false'`
+```Shell
+retry 'echo "y u no work"; false'
 
 y u no work
 Before retry #1: sleeping 0.3 seconds
@@ -62,10 +70,12 @@ Test functionality:
 Before retry #10: sleeping 60.0 seconds
 y u no work
 etc..
+```
 
 Limit retries:
 
-`retry -t 4 'echo "y u no work"; false'`
+```Shell
+retry -t 4 'echo "y u no work"; false'
 
 y u no work
 Before retry #1: sleeping 0.3 seconds
@@ -77,16 +87,20 @@ Limit retries:
 Before retry #4: sleeping 2.4 seconds
 y u no work
 Retries exhausted
+```
 
 Bad command:
 
-`retry poop`
+```Shell
+retry poop
 
 bash: poop: command not found
+```
 
 Fail command:
 
-`retry -t 3 -f 'echo "oh poopsickles"' 'echo "y u no work"; false'`
+```Shell
+retry -t 3 -f 'echo "oh poopsickles"' 'echo "y u no work"; false'
 
 y u no work
 Before retry #1: sleeping 0.3 seconds
@@ -97,10 +111,12 @@ Fail command:
 y u no work
 Retries exhausted, running fail script
 oh poopsickles
+```
 
 Last attempt passed:
 
-`retry -t 3 -- 'if [ $RETRY_ATTEMPT -eq 3 ]; then echo Passed at attempt $RETRY_ATTEMPT; true; else echo Failed at attempt $RETRY_ATTEMPT; false; fi;'`
+```Shell
+retry -t 3 -- 'if [ $RETRY_ATTEMPT -eq 3 ]; then echo Passed at attempt $RETRY_ATTEMPT; true; else echo Failed at attempt $RETRY_ATTEMPT; false; fi;'
 
 Failed at attempt 0
 Before retry #1: sleeping 0.3 seconds
@@ -109,7 +125,8 @@ Last attempt passed:
 Failed at attempt 2
 Before retry #3: sleeping 1.2 seconds
 Passed at attempt 3
+```
 
-### License
+## License
 
-Apache 2.0 - go nuts
+This project is licensed under the Apache 2.0 License - see the [LICENSE](https://github.com/owncloud-ci/retry/blob/master/LICENSE) file for details.

retry

@@ -1,4 +1,5 @@
 #!/usr/bin/env sh
+
 GETOPT_BIN=$IN_GETOPT_BIN
 GETOPT_BIN=${GETOPT_BIN:-getopt}
 
@@ -8,7 +9,7 @@ __sleep_amount() {
   else
     #TODO: check for awk
     #TODO: check if user would rather use one of the other possible dependencies: python, ruby, bc, dc
-    sleep_time=$(awk "BEGIN {t = $min_sleep * $(( (1<<(attempts -1)) )); print (t > $max_sleep ? $max_sleep : t)}")
+    sleep_time=$(awk "BEGIN {t = $min_sleep * $(((1 << (_retry_attempts - 1)))); print (t > $max_sleep ? $max_sleep : t)}")
   fi
 }
 
@@ -17,65 +18,66 @@ __log_out() {
 }
 
 # Parameters: max_tries min_sleep max_sleep constant_sleep fail_script EXECUTION_COMMAND
-retry()
+retry() {
-{
+  _retry_max_tries="$1"
-  local max_tries="$1"; shift
+  shift
-  local min_sleep="$1"; shift
+  _retry_min_sleep="$1"
-  local max_sleep="$1"; shift
+  shift
-  local constant_sleep="$1"; shift
+  _retry_max_sleep="$1"
-  local fail_script="$1"; shift
+  shift
+  _retry_constant_sleep="$1"
+  shift
+  _retry_fail_script="$1"
+  shift
   if [ -n "$VERBOSE" ]; then
-    __log_out "Retry Parameters: max_tries=$max_tries min_sleep=$min_sleep max_sleep=$max_sleep constant_sleep=$constant_sleep"
+    __log_out "Retry Parameters: max_tries=$_retry_max_tries min_sleep=$_retry_min_sleep max_sleep=$_retry_max_sleep constant_sleep=$_retry_constant_sleep"
-    if [ -n "$fail_script" ]; then __log_out "Fail script: $fail_script"; fi
+    if [ -n "$_retry_fail_script" ]; then __log_out "Fail script: $_retry_fail_script"; fi
     __log_out ""
     __log_out "Execution Command: $*"
     __log_out ""
   fi
 
-  local attempts=0
+  _retry_attempts=0
-  local return_code=1
+  _retry_return_code=1
 
-
+  while [ "$_retry_return_code" -ne 0 ] && [ "$_retry_attempts" -le "$_retry_max_tries" ]; do
-  while [ "$return_code" -ne 0 ] && [ "$attempts" -le "$max_tries" ]; do
+    if [ $_retry_attempts -gt 0 ]; then
-    if [ $attempts -gt 0 ]; then
       __sleep_amount
-      __log_out "Before retry #$attempts: sleeping $sleep_time seconds"
+      __log_out "Before retry #$_retry_attempts: sleeping $sleep_time seconds"
       sleep "$sleep_time"
     fi
 
     P="$1"
     #for param in "${@:2}"; do P="$P '$param'"; done
     #TODO: replace single quotes in each arg with '"'"' ?
-    export RETRY_ATTEMPT=$attempts
+    export RETRY_ATTEMPT=$_retry_attempts
     sh -c "$P"
-    return_code=$?
+    _retry_return_code=$?
-    #__log_out "Process returned $return_code on attempt $attempts"
+    #__log_out "Process returned $_retry_return_code on attempt $_retry_attempts"
-    if [ $return_code -eq 127 ]; then
+    if [ $_retry_return_code -eq 127 ]; then
       # command not found
-      exit $return_code
+      exit $_retry_return_code
-    elif [ $return_code -ne 0 ]; then
+    elif [ $_retry_return_code -ne 0 ]; then
-      attempts=$((attempts +1))
+      _retry_attempts=$((_retry_attempts + 1))
     fi
   done
 
-  if [ "$attempts" -gt "$max_tries" ]; then
+  if [ "$_retry_attempts" -gt "$_retry_max_tries" ]; then
-    if [ -n "$fail_script" ]; then
+    if [ -n "$_retry_fail_script" ]; then
       __log_out "Retries exhausted, running fail script"
-      eval "$fail_script"
+      eval "$_retry_fail_script"
     else
       __log_out "Retries exhausted"
     fi
   fi
 
-  exit $return_code
+  exit $_retry_return_code
 }
 
-
+help() {
-help()
+  _help_retry=$(basename "$0")
-{
-local retry=$(basename "$0")
   cat <<EOF
-Usage: $retry [options] -- execute command
+Usage: $_help_retry [options] -- execute command
 -h, -?, --help
 -v, --verbose                    Verbose output
 -t, --tries=#                    Set max retries: Default 10
@@ -87,8 +89,7 @@ EOF
 }
 
 # show help for no arguments if stdin is a terminal
-if { [ -z "$1" ] && [ -t 0 ] ; } || [ "$1" = '-h' ] || [ "$1" = '-?' ] || [ "$1" = '--help' ]
+if { [ -z "$1" ] && [ -t 0 ]; } || [ "$1" = '-h' ] || [ "$1" = '-?' ] || [ "$1" = '--help' ]; then
-then
   help
   exit 0
 fi
@@ -103,6 +104,7 @@ OPTIONS=vt:s:m:x:f:
 LONGOPTIONS=verbose,tries:,sleep:,min:,max:,fail:
 
 PARSED=$($GETOPT_BIN --options="$OPTIONS" --longoptions="$LONGOPTIONS" --name "$0" -- "$@")
+# shellcheck disable=SC2181
 if [ $? -ne 0 ]; then
   # e.g. $? == 1
   #  then getopt has complained about wrong arguments to stdout