Add support for pgxpool

This commit adds a struct for managing transaction. WithTransaction
and RetryTransaction functions are deprecated in favour of Transaction
struct. Retry function is also deprecated in favour of the
github.com/arsham/retry library.

.chglog/CHANGELOG.tpl.md

@@ -0,0 +1,67 @@
+# CHANGELOG
+
+{{ if .Versions -}}
+<a name="unreleased"></a>
+## [Unreleased]
+{{ if .Unreleased.CommitGroups -}}
+{{ range .Unreleased.CommitGroups }}
+### {{ .Title }}
+{{ range .Commits -}}
+{{ if not (contains .Subject "<code>") -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ if .Subject }}{{ .Subject }}{{ else }}{{ .Header }}{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end }}
+{{ else }}
+{{ range .Unreleased.Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ if .Subject }}{{ .Subject }}{{ else }}{{ .Header }}{{ end }}
+{{ end }}
+{{ end -}}
+
+{{- if .Unreleased.NoteGroups -}}
+{{ range .Unreleased.NoteGroups -}}
+### {{ .Title }}
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{ range .Versions }}
+<a name="{{ .Tag.Name }}"></a>
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
+{{ if .CommitGroups -}}
+{{ range .CommitGroups }}
+### {{ .Title }}
+{{ range .Commits -}}
+{{ if not (contains .Subject "<code>") -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ if .Subject }}{{ .Subject }}{{ else }}{{ .Header }}{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end }}
+{{ else }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ if .Subject }}{{ .Subject }}{{ else }}{{ .Header }}{{ end }}
+{{ end }}
+{{ end -}}
+
+{{- if .NoteGroups -}}
+{{ range .NoteGroups -}}
+### {{ .Title }}
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{- if .Versions }}
+
+[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...HEAD
+{{ range .Versions -}}
+{{ if .Tag.Previous -}}
+[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
+{{ end -}}
+{{ end -}}
+{{ end -}}

.chglog/config.yml

@@ -0,0 +1,75 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/arsham/dbtools
+
+options:
+  commits:
+    # filters:
+    #   Type:
+    #     - feat
+    #     - add
+    #     - return
+    #     - feature
+    #     - fix
+    #     - perf
+    #     - refactor
+
+  commit_groups:
+    # group_by: Type
+
+    title_maps:
+      feat: Added
+      Feat: Added
+      add: Added
+      Add: Added
+      feature: New Feature
+      Feature: New Feature
+      fix: Fixed
+      Fix: Fixed
+      merge: Merged
+      Merge: Merged
+      perf: Performance Improvements
+      Perf: Performance Improvements
+      refactor: Code Refactoring
+      Refactor: Code Refactoring
+      Increase: Code Refactoring
+
+  header:
+    # {                      header                  }
+    # {type}{scope} {            subject             }
+    # add(core): new feature to the thing (closes #666)
+    # We are ignoring paranteses around the scope.
+    pattern: "^((\\w+)(\\((\\w+)\\))?:?\\s(.+))$"
+    pattern_maps:
+      - Subject
+      - Type
+      -
+      - Scope
+
+  issues:
+    prefix:
+      - #
+
+  refs:
+    actions:
+      - Closes
+      - Fixes
+      - Refs
+
+  merges:
+    pattern: "^Merge branch '(\\w+)'$"
+    pattern_maps:
+      - Source
+
+  reverts:
+    pattern: "^Revert \"([\\s\\S]*)\"$"
+    pattern_maps:
+      - Header
+
+  notes:
+    keywords:
+      - BREAKING CHANGE
+      - IMPORTANT
+      - important

.gitignore

@@ -11,3 +11,4 @@
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 vendor/
+tmp/

.golangci.yml

@@ -0,0 +1,99 @@
+linters-settings:
+    govet:
+      check-shadowing: true
+      settings:
+        printf:
+          funcs:
+            - (github.com/golangci/golangci-lint/pkg/logutils.Log).Infof
+            - (github.com/golangci/golangci-lint/pkg/logutils.Log).Warnf
+            - (github.com/golangci/golangci-lint/pkg/logutils.Log).Errorf
+            - (github.com/golangci/golangci-lint/pkg/logutils.Log).Fatalf
+    golint:
+      min-confidence: 0
+    gocyclo:
+      min-complexity: 15
+    maligned:
+      suggest-new: true
+    goconst:
+      min-len: 2
+      min-occurrences: 2
+    misspell:
+      locale: UK
+    lll:
+      line-length: 140
+    goimports:
+      local-prefixes: github.com/golangci/golangci-lint
+    gocritic:
+      enabled-tags:
+        - diagnostic
+        - experimental
+        - opinionated
+        - performance
+        - style
+      disabled-checks:
+        - wrapperFunc
+        - dupImport # https://github.com/go-critic/go-critic/issues/845
+    funlen:
+      lines: 100
+      statements: 50
+
+
+issues:
+  # Excluding configuration per-path, per-linter, per-text and per-source
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - gosec # security check is not impoerant in tests
+        - dupl  # we usualy duplicate code in tests
+
+run:
+  skip-dirs:
+    - model
+    - tmp
+    - bin
+    - scripts
+
+  tests: true
+  build-tags:
+    - integration
+
+linters:
+  disable-all: true
+  fast: true
+  enable:
+    - asciicheck
+    - bodyclose
+    - dogsled
+    - depguard
+    - dupl
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - godox
+    - golint
+    - goprintffuncname
+    - gosec
+    - gosimple
+    - interfacer
+    - maligned
+    - misspell
+    - nakedret
+    - nestif
+    - prealloc
+    - rowserrcheck
+    - scopelint
+    - staticcheck
+    - stylecheck
+    - unconvert
+    - unparam
+    - unused
+    - whitespace
+
+# golangci.com configuration
+# https://github.com/golangci/golangci/wiki/Configuration
+service:
+  golangci-lint-version: 1.30.x
+  prepare:
+    - echo "here I can run custom commands, but no preparation needed for this repo"

.travis.yml

@@ -1,5 +1,6 @@
 language: go
-dist: xenial
+
+dist: focal
 
 os:
   - linux
@@ -8,12 +9,24 @@ env:
   - GO111MODULE=on
 
 go:
-  - 1.11.x
-  - 1.12.x
-  - 1.13.x
+  - 1.14.x
+  - 1.15.x
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+before_install:
+  - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.30.0
 
 script:
-  - go test -failfast -v -coverprofile=coverage.txt -covermode=atomic ./...
+   - make ci_tests
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
+
+cache:
+  directories:
+    - $HOME/.cache/go-build
+    - $HOME/gopath/pkg/mod

CHANGELOG.md

@@ -0,0 +1,59 @@
+# CHANGELOG
+
+<a name="unreleased"></a>
+## [Unreleased]
+
+
+
+<a name="v0.4.0"></a>
+## [v0.4.0] - 2020-08-16
+
+### Added
+- Add support for pgxpool
+
+
+<a name="v0.3.2"></a>
+## [v0.3.2] - 2019-10-16
+
+### Handle
+- Handle function panics
+
+
+<a name="v0.3.1"></a>
+## [v0.3.1] - 2019-07-17
+
+### Update
+- Update badges
+
+
+<a name="v0.3.0"></a>
+## [v0.3.0] - 2019-07-17
+
+### Added
+- Add db helpers and rename the repo to dbtools
+
+
+<a name="v0.2.0"></a>
+## [v0.2.0] - 2019-07-16
+
+### Added
+- Add mocha report and update README.md file
+
+
+<a name="v0.1.0"></a>
+## v0.1.0 - 2019-07-02
+
+### Added
+- Add ValueRecorder and OkValue
+
+### Initial
+- Initial commit
+
+
+
+[Unreleased]: https://github.com/arsham/dbtools/compare/v0.4.0...HEAD
+[v0.4.0]: https://github.com/arsham/dbtools/compare/v0.3.2...v0.4.0
+[v0.3.2]: https://github.com/arsham/dbtools/compare/v0.3.1...v0.3.2
+[v0.3.1]: https://github.com/arsham/dbtools/compare/v0.3.0...v0.3.1
+[v0.3.0]: https://github.com/arsham/dbtools/compare/v0.2.0...v0.3.0
+[v0.2.0]: https://github.com/arsham/dbtools/compare/v0.1.0...v0.2.0