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Merge branch 'release/1.0.0'

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This commit is contained in:
Ralph Slooten 2025-06-29 17:54:48 +12:00
commit 065ff933c0
13 changed files with 284 additions and 139 deletions
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15
.github/dependabot.yml vendored Normal file
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@ -0,0 +1,15 @@
# To get started with Dependabot version updates, you'll need to specify which
# package ecosystems to update and where the package manifests are located.
# Please see the documentation for all configuration options:
# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
version: 2
updates:
- package-ecosystem: "gomod"
directory: "/" # Location of package manifests
schedule:
interval: "quarterly"
- package-ecosystem: "github-actions"
directory: "/" # Location of package manifests
schedule:
interval: "quarterly"

35
.github/workflows/build-release.yml vendored Normal file
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@ -0,0 +1,35 @@
name: Release Go Binaries
on:
release:
types: [created]
jobs:
releases-matrix:
name: Release Go Binary
runs-on: ubuntu-latest
strategy:
matrix:
goos: [linux, darwin]
goarch: ["386", amd64, arm, arm64]
exclude:
- goarch: "386"
goos: darwin
- goarch: arm
goos: darwin
steps:
- uses: actions/checkout@v4
- uses: wangyoucao577/go-release-action@v1
with:
binary_name: "goptimize"
asset_name: "goptimize-${{ matrix.goos }}-${{ matrix.goarch }}"
extra_files: LICENSE README.md
github_token: ${{ secrets.GITHUB_TOKEN }}
md5sum: false
overwrite: true
goos: ${{ matrix.goos }}
goarch: ${{ matrix.goarch }}
pre_command: export GO386=softfloat CGO_ENABLED=0
ldflags: -s -w -X "main.version=${{ github.ref_name }}"

72
.github/workflows/codeql-analysis.yml vendored Normal file
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@ -0,0 +1,72 @@
# For most projects, this workflow file will not need changing; you simply need
# to commit it to your repository.
#
# You may wish to alter this file to override the set of languages analyzed,
# or to provide custom queries or build logic.
#
# ******** NOTE ********
# We have attempted to detect the languages in your repository. Please check
# the `language` matrix defined below to confirm you have the correct set of
# supported CodeQL languages.
#
name: "CodeQL"
on:
push:
branches: [ "develop" ]
pull_request:
# The branches below must be a subset of the branches above
branches: [ "develop" ]
schedule:
- cron: '34 23 * * 4'
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
permissions:
actions: read
contents: read
security-events: write
strategy:
fail-fast: false
matrix:
language: [ 'go' ]
# CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
# Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
steps:
- name: Checkout repository
uses: actions/checkout@v4
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v3
with:
languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file.
# By default, queries listed here will override any specified in a config file.
# Prefix the list here with "+" to use these queries and those in the config file.
# Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
# queries: security-extended,security-and-quality
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild
uses: github/codeql-action/autobuild@v3
# ℹ️ Command-line programs to run using the OS shell.
# 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
# If the Autobuild fails above, remove it and uncomment the following three lines.
# modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
# - run: |
# echo "Run, Build Application using script"
# ./location_of_script_within_repo/buildscript.sh
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v3

20
.github/workflows/tests.yml vendored Normal file
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@ -0,0 +1,20 @@
name: Tests
on:
pull_request:
branches: [develop, "feature/**"]
push:
branches: [develop, "feature/**"]
jobs:
golangci:
name: golangci-lint
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: actions/setup-go@v5
with:
go-version: stable
- name: golangci-lint
uses: golangci/golangci-lint-action@v8
with:
version: v2.1

16
CHANGELOG.md
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@ -1,42 +1,44 @@
# Changelog
## [1.0.0]
- Use ghru/v2 for latest version checks and self-update functionality
- Refactor code for consistency and error handling improvements
- Update Go dependencies
- Use GitHub Actions to build release binaries
- Add quarterly dependabot module update
- Add code quality checks & linting (golangci-lint)
## [0.2.3]
- Switch to kovidgoyal/imaging to address CVE-2023-36308
## [0.2.2]
- Optionally preserve exif data for supported formats
- Update Go modules
## [0.2.1]
- Update core modules
## [0.2.0]
- Add threaded option (`-t`) to use all CPU cores
## [0.1.0]
- Switch to go mods - go (>= 1.11 required)
- Switch to axllent/semver for app updating
## [0.0.3]
- Detect & skip animated GIFs
## [0.0.2]
- Switch to [pflag](https://github.com/spf13/pflag) for better flag management
## [0.0.1]
- Initial release

31
LICENSE
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@ -1,16 +1,21 @@
Copyright 2019 Ralph Slooten
The MIT License (MIT)
Copyright (c) 2019-Now() Ralph Slooten
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

23
Makefile
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@ -1,23 +0,0 @@
TAG=`git describe --tags`
VERSION ?= `git describe --tags`
LDFLAGS=-ldflags "-s -w -X main.version=${VERSION}"
build = echo "\n\nBuilding $(1)-$(2)" && GOOS=$(1) GOARCH=$(2) go build ${LDFLAGS} -o dist/goptimize_${VERSION}_$(1)_$(2) \
&& bzip2 dist/goptimize_${VERSION}_$(1)_$(2)
goptimize: *.go go.*
go build ${LDFLAGS} -o goptimize
rm -rf /tmp/go-*
clean:
rm -f goptimize
release:
mkdir -p dist
rm -f dist/goptimize_${VERSION}_*
$(call build,linux,amd64)
$(call build,linux,386)
$(call build,linux,arm)
$(call build,linux,arm64)
$(call build,darwin,amd64)
$(call build,darwin,arm64)

28
README.md
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@ -1,8 +1,8 @@
# Goptimizer - downscales and optimizes images
# Goptimize - downscales and optimizes images
[![Go Report Card](https://goreportcard.com/badge/github.com/axllent/goptimize)](https://goreportcard.com/report/github.com/axllent/goptimize)
Goptimizer is a commandline utility written in Golang. It downscales and optimizes JPEG, PNG, GIF, TIFF and BMP files.
Goptimize is a command-line utility written in Golang. It downscales and optimizes JPEG, PNG, GIF, TIFF and BMP files.
Image downscaling/rotation is done within goptimize (`-m <width>x<height>`, see [Usage](#usage-options)), however optimization is done using the following additional tools (if they are installed):
@ -11,19 +11,17 @@ Image downscaling/rotation is done within goptimize (`-m <width>x<height>`, see
- pngquant
- gifsicle
## Notes
Both `jpegoptim` & `jpegtran` have almost identical optimization, so if both are installed then just `jpegtran` is used for JPG optimization. PNG optimization however will run through both `optipng` & `pngquant` (if installed) as this can result in better optimization.
It is highly recommended to install the necessary optimization tools, however they are not required to run goptimize.
Goptimize will remove all exif data from JPEG files, auto-rotating those that depend on it for orientation.
GGoptimize will by default remove all EXIF data from JPEG files and automatically rotate those that rely on it for orientation. This can be disabled by adding the `-e` flag.
It will also preserve (by default) the file's original modification times (`-p=false` to disable).
Animated GIF files are not supported and automatically get skipped.
Animated GIF files are not supported and are ignored.
## Usage options
@ -46,7 +44,6 @@ Options:
--optipng string optipng binary (default "optipng")
```
## Examples
- `./goptimize image.png` - optimize a PNG file
@ -54,23 +51,10 @@ Options:
- `./goptimize -m 1200x0 image.jpg` - optimize and downscale a JPG file to a maximum size of width of 1200px
- `./goptimize -o out/ image.jpg` - optimize a JPG file and save it to `out/`
## Install
Download the appropriate binary from the [releases](https://github.com/axllent/goptimize/releases/latest), or if you have golang installed
### Build requirements
Go >= 1.21 required.
Download the appropriate binary from the [releases](https://github.com/axllent/goptimize/releases/latest), or if you have golang installed you can install from source:
```
go get github.com/axllent/goptimize
go install github.com/axllent/goptimize@latest
```
## TODO
Some ideas for the future:
- Dry run
- Option to copy exif data (how?)

8
exifcopy.go
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@ -115,21 +115,21 @@ func copyMetadata(outImagePath, imagePath, metadataImagePath string) error {
if err != nil {
return err
}
defer outFile.Close()
defer func() { _ = outFile.Close() }()
writer := bufio.NewWriter(outFile)
imageFile, err := os.Open(imagePath)
if err != nil {
return err
}
defer imageFile.Close()
defer func() { _ = imageFile.Close() }()
imageReader := bufio.NewReader(imageFile)
metaFile, err := os.Open(metadataImagePath)
if err != nil {
return err
}
defer metaFile.Close()
defer func() { _ = metaFile.Close() }()
metaReader := bufio.NewReader(metaFile)
_, err = writer.Write([]byte{0xFF, soi})
@ -166,6 +166,6 @@ func exifCopy(fromPath, toPath string) error {
if err != nil {
return err
}
defer os.Remove(copyPath)
defer func() { _ = os.Remove(copyPath) }()
return copyMetadata(toPath, copyPath, fromPath)
}

14
go.mod
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@ -1,14 +1,14 @@
module github.com/axllent/goptimize
go 1.21
go 1.23.0
toolchain go1.22.2
toolchain go1.23.1
require (
github.com/axllent/ghru v1.2.1
github.com/kovidgoyal/imaging v1.6.3
github.com/spf13/pflag v1.0.5
golang.org/x/image v0.15.0
github.com/axllent/ghru/v2 v2.0.1
github.com/kovidgoyal/imaging v1.6.4
github.com/spf13/pflag v1.0.6
golang.org/x/image v0.28.0
)
require github.com/axllent/semver v0.0.1 // indirect
require golang.org/x/mod v0.25.0 // indirect

20
go.sum
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@ -1,10 +1,10 @@
github.com/axllent/ghru v1.2.1 h1:PuJQQeILJJ42O9nvjTwObWQGZDyZ9/F71st9jNAqgoU=
github.com/axllent/ghru v1.2.1/go.mod h1:YgznIILRJpnII5x8N080q/G8Milzk3sy9Sh4dV1eGQw=
github.com/axllent/semver v0.0.1 h1:QqF+KSGxgj8QZzSXAvKFqjGWE5792ksOnQhludToK8E=
github.com/axllent/semver v0.0.1/go.mod h1:2xSPzvG8n9mRfdtxSvWvfTfQGWfHsMsHO1iZnKATMSc=
github.com/kovidgoyal/imaging v1.6.3 h1:iNPpv7ygiaB/NOztc6APMT7yr9UwBS+rOZwIbAdtyY8=
github.com/kovidgoyal/imaging v1.6.3/go.mod h1:sHvcLOOVhJuto2IoNdPLEqnAUoL5ZfHEF0PpNH+882g=
github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
golang.org/x/image v0.15.0 h1:kOELfmgrmJlw4Cdb7g/QGuB3CvDrXbqEIww/pNtNBm8=
golang.org/x/image v0.15.0/go.mod h1:HUYqC05R2ZcZ3ejNQsIHQDQiwWM4JBqmm6MKANTp4LE=
github.com/axllent/ghru/v2 v2.0.1 h1:/9XHbMqJRGRxlyNMq2XiHQpBLz7hlq8xCdgJ4ZhjCoM=
github.com/axllent/ghru/v2 v2.0.1/go.mod h1:seMMjx8/0r5ZAL7c0vwTPIRoyN0AoTUqAylZEWZWGK4=
github.com/kovidgoyal/imaging v1.6.4 h1:K0idhRPXnRrJBKnBYcTfI1HTWSNDeAn7hYDvf9I0dCk=
github.com/kovidgoyal/imaging v1.6.4/go.mod h1:bEIgsaZmXlvFfkv/CUxr9rJook6AQkJnpB5EPosRfRY=
github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
golang.org/x/image v0.28.0 h1:gdem5JW1OLS4FbkWgLO+7ZeFzYtL3xClb97GaUzYMFE=
golang.org/x/image v0.28.0/go.mod h1:GUJYXtnGKEUgggyzh+Vxt+AviiCcyiwpsl8iQ8MvwGY=
golang.org/x/mod v0.25.0 h1:n7a+ZbQKQA/Ysbyb0/6IbB1H/X41mKgbhfv7AfG/44w=
golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=

73
goptimize.go
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@ -18,7 +18,7 @@ import (
)
// Goptimize downscales and optimizes an existing image
func Goptimize(file string) {
func goptimize(file string) {
info, err := os.Stat(file)
if err != nil {
@ -57,7 +57,7 @@ func Goptimize(file string) {
if format.String() == "GIF" {
// return if GIF is animated - unsupported
if err := IsGIFAnimated(file); err != nil {
if err := isGIFAnimated(file); err != nil {
fmt.Printf("Error: animated GIF not supported (%v)\n", file)
return
}
@ -99,7 +99,7 @@ func Goptimize(file string) {
return
}
defer os.Remove(tmpFile.Name())
defer func() { _ = os.Remove(tmpFile.Name()) }()
switch imgType := format.String(); imgType {
case "JPEG":
@ -127,15 +127,18 @@ func Goptimize(file string) {
// immediately close the temp file to release pointers
// so we can modify it with system processes
tmpFile.Close()
if err := tmpFile.Close(); err != nil {
fmt.Printf("Error closing temporary file: %v\n", err)
return
}
// run through optimizers
if format.String() == "JPEG" {
// run one or the other, running both has no advantage
if jpegtran != "" {
RunOptimizer(tmpFilename, true, jpegtran, "-optimize", "-outfile")
runOptimizer(tmpFilename, true, jpegtran, "-optimize", "-outfile")
} else if jpegoptim != "" {
RunOptimizer(tmpFilename, false, jpegoptim, "-f", "-s", "-o")
runOptimizer(tmpFilename, false, jpegoptim, "-f", "-s", "-o")
}
if copyExif {
@ -146,13 +149,13 @@ func Goptimize(file string) {
}
} else if format.String() == "PNG" {
if pngquant != "" {
RunOptimizer(tmpFilename, true, pngquant, "-f", "--output")
runOptimizer(tmpFilename, true, pngquant, "-f", "--output")
}
if optipng != "" {
RunOptimizer(tmpFilename, true, optipng, "-out")
runOptimizer(tmpFilename, true, optipng, "-out")
}
} else if format.String() == "GIF" && gifsicle != "" {
RunOptimizer(tmpFilename, true, gifsicle, "-o")
runOptimizer(tmpFilename, true, gifsicle, "-o")
}
// re-open modified temporary file
@ -162,7 +165,7 @@ func Goptimize(file string) {
return
}
defer tmpFile.Close()
defer func() { _ = tmpFile.Close() }()
// get th eoriginal file stats
srcStat, _ := os.Stat(file)
@ -187,7 +190,7 @@ func Goptimize(file string) {
return
}
defer out.Close()
defer func() { _ = out.Close() }()
if _, err := io.Copy(out, tmpFile); err != nil {
fmt.Printf("Error overwriting original file: %v\n", err)
@ -201,22 +204,26 @@ func Goptimize(file string) {
}
}
fmt.Printf("Goptimized %s (%dx%d %s > %s %v%%)\n", dstFile, resultW, resultH, ByteCountSI(srcSize), ByteCountSI(dstSize), savedPercent)
fmt.Printf("Optimized %s (%dx%d %s > %s %v%%)\n", dstFile, resultW, resultH, byteCountSI(srcSize), byteCountSI(dstSize), savedPercent)
} else {
// if the output directory is not the same,
// then write a copy of the original file
if outputDir != "" {
out, err := os.Create(dstFile)
if err != nil {
fmt.Printf("Error creating new file: %v\n", err)
return
}
defer func() { _ = out.Close() }()
orig, err := os.Open(file)
if err != nil {
fmt.Printf("Error opening original file: %v\n", err)
return
}
defer out.Close()
orig, _ := os.Open(file)
defer orig.Close()
defer func() { _ = orig.Close() }()
if _, err := io.Copy(out, orig); err != nil {
fmt.Printf("Error ovewriting original file: %v\n", err)
@ -230,36 +237,35 @@ func Goptimize(file string) {
}
}
fmt.Printf("Copied %s (%dx%d %s %v%%)\n", dstFile, srcW, srcH, ByteCountSI(srcSize), 0)
fmt.Printf("Copied %s (%dx%d %s %v%%)\n", dstFile, srcW, srcH, byteCountSI(srcSize), 0)
} else {
// we didn't actually change anything
fmt.Printf("Skipped %s (%dx%d %s %v%%)\n", dstFile, srcW, srcH, ByteCountSI(srcSize), 0)
fmt.Printf("Skipped %s (%dx%d %s %v%%)\n", dstFile, srcW, srcH, byteCountSI(srcSize), 0)
}
}
}
// RunOptimizer will run the specified command on a copy of the temporary file,
// runOptimizer will run the specified command on a copy of the temporary file,
// and overwrite it if the output is smaller than the original
func RunOptimizer(src string, outFileArg bool, args ...string) {
func runOptimizer(src string, outFileArg bool, args ...string) {
// create a new temp file
tmpFile, err := os.CreateTemp(os.TempDir(), "Goptimized-")
tmpFile, err := os.CreateTemp(os.TempDir(), "goptimize-")
if err != nil {
fmt.Printf("Cannot create temporary file: %v\n", err)
return
}
defer os.Remove(tmpFile.Name())
defer func() { _ = os.Remove(tmpFile.Name()) }()
source, err := os.Open(src)
if err != nil {
fmt.Printf("Cannot open temporary file: %v\n", err)
return
}
defer source.Close()
defer func() { _ = source.Close() }()
if _, err := io.Copy(tmpFile, source); err != nil {
fmt.Printf("Cannot copy source file: %v\n", err)
@ -289,8 +295,8 @@ func RunOptimizer(src string, outFileArg bool, args ...string) {
dstSize := dstStat.Size()
// ensure file pointers are closed before renaming
tmpFile.Close()
source.Close()
func() { _ = tmpFile.Close() }()
func() { _ = source.Close() }()
if dstSize < srcSize {
if err := os.Rename(tmpFilename, src); err != nil {
@ -301,7 +307,7 @@ func RunOptimizer(src string, outFileArg bool, args ...string) {
}
// ByteCountSI returns a human readable size from int64 bytes
func ByteCountSI(b int64) string {
func byteCountSI(b int64) string {
const unit = 1000
if b < unit {
return fmt.Sprintf("%dB", b)
@ -315,9 +321,12 @@ func ByteCountSI(b int64) string {
}
// IsGIFAnimated will return an error if the GIF file has more than 1 frame
func IsGIFAnimated(gifFile string) error {
file, _ := os.Open(gifFile)
defer file.Close()
func isGIFAnimated(gifFile string) error {
file, err := os.Open(gifFile)
if err != nil {
return fmt.Errorf("cannot open GIF file: %v", err)
}
defer func() { _ = file.Close() }()
g, err := gif.DecodeAll(file)
if err != nil {
@ -329,5 +338,5 @@ func IsGIFAnimated(gifFile string) error {
return nil
}
return fmt.Errorf("Animated gif")
return fmt.Errorf("cannot optimize an animated gif")
}

68
main.go
View File

@ -1,3 +1,4 @@
// Package main is the main application
package main
import (
@ -9,7 +10,7 @@ import (
"strconv"
"sync"
"github.com/axllent/ghru"
"github.com/axllent/ghru/v2"
"github.com/spf13/pflag"
)
@ -27,6 +28,13 @@ var (
copyExif bool
threads = 1
version = "dev"
// ghruConf is the configuration for the ghru package
ghruConf = ghru.Config{
Repo: "axllent/goptimize",
ArchiveName: "goptimize-{{.OS}}-{{.Arch}}",
BinaryName: "goptimize",
CurrentVersion: version,
}
)
func main() {
@ -47,15 +55,15 @@ func main() {
fmt.Println("\nDetected optimizers:")
if err := displayDetectedOptimizer("jpegtran ", jpegtran); err != nil {
displayDetectedOptimizer("jpegoptim", jpegoptim)
_ = displayDetectedOptimizer("jpegoptim", jpegoptim)
}
displayDetectedOptimizer("optipng ", optipng)
displayDetectedOptimizer("pngquant ", pngquant)
displayDetectedOptimizer("gifsicle ", gifsicle)
_ = displayDetectedOptimizer("optipng ", optipng)
_ = displayDetectedOptimizer("pngquant ", pngquant)
_ = displayDetectedOptimizer("gifsicle ", gifsicle)
}
var maxSizes string
var multiThreaded, update, showversion, showhelp bool
var multiThreaded, update, showVersion, showHelp bool
flag.IntVarP(&quality, "quality", "q", 75, "quality, JPEG only")
flag.StringVarP(&maxSizes, "max", "m", "", "downscale to a maximum width & height in pixels (<width>x<height>)")
@ -64,8 +72,8 @@ func main() {
flag.BoolVarP(&copyExif, "exif", "e", false, "copy exif data")
flag.BoolVarP(&update, "update", "u", false, "update to latest release")
flag.BoolVarP(&multiThreaded, "threaded", "t", false, "run multi-threaded (use all CPU cores)")
flag.BoolVarP(&showversion, "version", "v", false, "show version number")
flag.BoolVarP(&showhelp, "help", "h", false, "show help")
flag.BoolVarP(&showVersion, "version", "v", false, "show version number")
flag.BoolVarP(&showHelp, "help", "h", false, "show help")
// third-party optimizers
flag.StringVar(&jpegtran, "jpegtran", "jpegtran", "jpegtran binary")
@ -77,7 +85,9 @@ func main() {
flag.SortFlags = false
// parse args excluding os.Args[0]
flag.Parse(os.Args[1:])
if err := flag.Parse(os.Args[1:]); err != nil {
fmt.Printf("Error parsing flags: %s\n", err.Error())
}
// detect optimizer paths
gifsicle, _ = exec.LookPath(gifsicle)
@ -86,28 +96,44 @@ func main() {
optipng, _ = exec.LookPath(optipng)
pngquant, _ = exec.LookPath(pngquant)
if showhelp {
if showHelp {
flag.Usage()
os.Exit(1)
}
if showversion {
fmt.Println(fmt.Sprintf("Version: %s", version))
latest, _, _, err := ghru.Latest("axllent/goptimize", "goptimize")
if err == nil && ghru.GreaterThan(latest, version) {
fmt.Printf("Update available: %s\nRun `%s -u` to update.\n", latest, os.Args[0])
if showVersion {
fmt.Printf("Version: %s\n", version)
release, err := ghruConf.Latest()
if err != nil {
fmt.Printf("Error getting latest release: %s\n", err.Error())
os.Exit(1)
}
return
// The latest version is the same version
if release.Tag == version {
os.Exit(0)
}
// A newer release is available
fmt.Printf(
"Update available: %s\nRun `%s -u` to update (requires read/write access to install directory).\n",
release.Tag,
os.Args[0],
)
os.Exit(0)
}
if update {
rel, err := ghru.Update("axllent/goptimize", "goptimize", version)
// Update the app
rel, err := ghruConf.SelfUpdate()
if err != nil {
fmt.Println(err)
fmt.Println(err.Error())
os.Exit(1)
}
fmt.Printf("Updated %s to version %s\n", os.Args[0], rel)
return
fmt.Printf("Updated %s to version %s\n", os.Args[0], rel.Tag)
os.Exit(0)
}
if len(flag.Args()) < 1 {
@ -155,7 +181,7 @@ func main() {
for i := 0; i < threads; i++ {
go func() {
for nextFile := range processChan {
Goptimize(nextFile)
goptimize(nextFile)
}
// Channel was closed, so we finished this goroutine.
wg.Done() // Let main goroutine know we are done.