// MinifyJavaScript minifies the JavaScript using Google Closure Compiler and then proceed to attempt to provide a zopfli compressed version.
func MinifyJavaScript() error {
var minifyError error
if codeutilsShared.ExecutableExists("ccjs") { // If the ccjs executable exists
fmt.Println("Minifying " + projectConfig.Name + " compiled JavaScript.")
closureArgs := []string{ // Define closureArgs as
"build/" + lowercaseProjectName + ".js", // Yes, I like to compress things.
"--compilation_level=SIMPLE_OPTIMIZATIONS", // Simple optimizations
"--warning_level=QUIET", // Shush you...
}
closureOutput := codeutilsShared.ExecCommand("ccjs", closureArgs, false) // Run Google Closure Compiler and store the output in closureOutput
codeutilsShared.WriteOrUpdateFile("build/"+lowercaseProjectName+".min.js", []byte(closureOutput), codeutilsShared.UniversalFileMode) // Write or update the minified JS file content to build/lowercaseProjectName.min.js
if codeutilsShared.ExecutableExists("zopfli") { // If zopfli exists
codeutilsShared.ExecCommand("zopfli", []string{"build/" + lowercaseProjectName + ".min.js"}, false) // Have zopfli run and gzip the contents
}
} else { // If ccjs does not exist
minifyError = errors.New("ccjs" + executableNotInstalled)
}
return minifyError
}
// GoBranchCompiler compiles individual branches of the Go source tree into selective binaries
func GoBranchCompiler(goBranchOptions codeutilsShared.GoBranchOptions) {
commandArgs := []string{"build"} // Set commandArgs to build
if !goBranchOptions.DoInstall { // If we are not going to do an install (if we're creating a binary)
commandArgs = append(commandArgs, []string{"-o", "build/" + goBranchOptions.BinaryName}...) // Redefine commandArgs as generating a binary as opposed to just compiling source
}
accurateSources := []string{} // Define accurateSources as an updated string array where each source in SourcesToInclude represents an accurate path
for _, source := range goBranchOptions.SourcesToInclude { // For each source
if strings.Contains(source, "*.go") { // If we are getting all the go files in a dir
directoryOfFiles := filepath.Dir(source) // Get the directory of the files
dirFileStruct, dirFileOpenError := os.Open(directoryOfFiles) // Open the directory and assign any error to dirFileOpenError
if dirFileOpenError == nil { // If we successfully opened the directory
directoryContents, _ := dirFileStruct.Readdir(-1) // Read everything in the directory, returns []os.FileInfo
for _, fileInfoStruct := range directoryContents {
if !fileInfoStruct.IsDir() && strings.HasSuffix(fileInfoStruct.Name(), ".go") { // If this is not a directory and ends with .go
accurateSources = append(accurateSources, []string{directoryOfFiles + "/" + fileInfoStruct.Name()}...) // Append the file
}
}
} else { // If we failed to open the directory
fmt.Println("Failed to open: " + directoryOfFiles)
}
} else { // If we are adding a specific Go file
absolutePath, _ := filepath.Abs(source) // Get the absolute patch of the source
accurateSources = append(accurateSources, []string{absolutePath}...) // Append the absolute patch
}
}
commandArgs = append(commandArgs, accurateSources...) // Append the accurate sources
goCompilerOutput := codeutilsShared.ExecCommand("go", commandArgs, false)
if strings.Contains(goCompilerOutput, ".go") || strings.Contains(goCompilerOutput, "# command") { // If running the go build shows there are obvious issues
fmt.Println(goCompilerOutput)
} else { // If there was no obvious issues
fmt.Println("Build successful.")
if goBranchOptions.DoInstall { // If we're building a package using this branch
fmt.Println("Installing.")
installOutput := codeutilsShared.ExecCommand("go", []string{"install"}, false) // Run go but using install rather than build
if installOutput != "" { // If there was output by install
fmt.Println(installOutput)
}
}
}
}
// InstallDependencies installs from either the system's package manager or npm
func InstallDependencies(packager string, dependencies []string) string {
var installResponse string
if ((packager == "system") && (SystemPackager != "unknown")) || (packager == "npm") { // If the packager is system and known or NPM
commandFlag := []string{"install"} // Set primative "install"
if packager == "system" { // If this is the system packager
packager = SystemPackager // Change packager to SystemPackager
commandFlag = append(commandFlag, []string{"-y"}...) // Set to -y to auto-install
} else { // If this is NPM
commandFlag = append(commandFlag, []string{"--global"}...) // Install globally NPM packages
}
commandFlag = append(commandFlag, dependencies...) // Append the packages
installResponse = codeutilsShared.ExecCommand(packager, commandFlag, true) // Call ExecCommand with packager and commandFlag
}
return installResponse
}
// CompressHTML compresses the HTML files provided
func CompressHTML(directory string, files []string) error {
var compressError error
htmlMinifierFlags := []string{ // Oh god I am so sorry for all the flags
"--case-sensitive", // Ensure case sensitivity for custom HTML tags
"--collapse-whitespace", // Collapse any whitespace
"--remove-comments", // Remove comments
"--remove-comments-from-cdata", // Same as above but from CDATA
"--remove-redundant-attributes", // Fix your damn HTML, no need for redundancies
"--remove-script-type-attributes", // Remove script type attribute
"--remove-style-link-type-attributes", // Remove style and link tag type attribute
}
if codeutilsShared.ExecutableExists("html-minifier") { // If the minifier exists
if codeutilsShared.IsDir(directory) { // If the directory provided indeed exists
if len(files) != 0 { // If there was files passed
replacer := regexp.MustCompile(`"{{?\s?(type=")?\s(\w+)?\s(src="[^>]+)`) // Search for instances of messed up quoting due to html-minifier
for _, file := range files { // For each file in files
fmt.Println("Compressing " + file + " in " + directory)
file = directory + "/" + file // Prepend the directory
fileSpecificFlags := htmlMinifierFlags // Assign fileSpecificFlags flags as initially the same as htmlMinifierFlags
fileSpecificFlags = append(fileSpecificFlags, []string{file}...) // Specify file to minify
compressedFileContent := codeutilsShared.ExecCommand("html-minifier", fileSpecificFlags, false) // Run the html-minifier
fixedContent := replacer.ReplaceAllString(compressedFileContent, `"{{ $1$2" $3 }}"`) // $1 is type, $2 is the type value, $3 is src+lang
codeutilsShared.WriteOrUpdateFile(file, []byte(fixedContent), 0755) // Update the file contents
}
} else { // If there was no files passed
fmt.Println("No files provided.")
}
} else { // If the directory provided is not, in fact, a directory
fmt.Println(directory + " is not a directory.")
}
} else { // If the minifier does not exist
compressError = errors.New("html-minifier" + executableNotInstalled)
}
return compressError
}
// LESSBranchCompiler compiles individual branches of the Go source tree into selective CSS files
func LESSBranchCompiler(lessBranchOptions codeutilsShared.LESSBranchOptions) {
lessCompileFlags := []string{
"--clean-css", // Clean the CSS (such as minification, comment removal, so forth)
"--no-color",
"--no-ie-compat", // Disable IE Compatibility
"--no-js",
"--strict-math=on", // Do not process math
}
if lessBranchOptions.UseGlob { // If we should use globbing
lessCompileFlags = append(lessCompileFlags, []string{"--glob"}...) // Provide --glob
}
if len(lessBranchOptions.AdditionalCompileOptions) != 0 { // If there was Additional Compile Options to pass
lessCompileFlags = append(lessCompileFlags, lessBranchOptions.AdditionalCompileOptions...)
}
writeFileName, _ := codeutilsShared.FindClosestFile("src/less/" + lowercaseProjectName + ".less") // Define writeFileName as the file name we'll be compiling
lessCompileFlags = append(lessCompileFlags, []string{writeFileName}...)
commandOutput := codeutilsShared.ExecCommand("lessc", lessCompileFlags, false) // Run the less compiler
errorIndex := strings.Index(commandOutput, "Error")
if (errorIndex > 12) || (errorIndex == -1) { // If there was no initial error (any error string beyond a certain point should be assumed to be a part of the program)
uniqueFileName := strings.Replace(filepath.Base(writeFileName), ".less", "", -1)
if lessBranchOptions.UniqueHash { // If we should be using a unique hash
uniqueFileName += "-" + codeutilsShared.Sha512Sum(commandOutput, 1)[0:12] // Append first 12 characters of hash
}
uniqueFileName += ".css" // Append .css
codeutilsShared.WriteOrUpdateFile("build/"+uniqueFileName, []byte(commandOutput), codeutilsShared.UniversalFileMode) // Write to build folder
codeutilsShared.CopyFile("build/"+uniqueFileName, "tests/design/css/"+uniqueFileName) // Copy from build folder to css folder
} else {
fmt.Println(commandOutput)
}
}
// CompileTypeScript compiles Typescript into Javascript and ensure JavaScript is minified and optimized
func CompileTypeScript() error {
var compileError error
if codeutilsShared.ExecutableExists("tsc") { // If the tsc executable exists
if codeutilsShared.IsDir("src/typescript") { // If src/typescript is a valid directory
if !strings.HasPrefix(projectConfig.TypeScript.Target, "ES") { // If it either an empty string or does not begin with ES
projectConfig.TypeScript.Target = "ES5" // Default to ES5
}
typescriptFileName, _ := codeutilsShared.FindClosestFile("src/typescript/" + lowercaseProjectName + ".ts") // Define typescriptFileName as the closest file name to the one we're providing
baseFileName := strings.Replace(filepath.Base(typescriptFileName), ".ts", "", -1) // Set baseFileName to typescript file name but with .ts removed
typescriptCompileFlags := []string{ // Define typescriptCompileFlags as the following options
"--declaration", // Create a declaration file
"--forceConsistentCasingInFileNames", // Enforce consistency in file names
"--noFallthroughCasesInSwitch", // Disallow fallthrough cases in switches
"--noImplicitReturns", // Disallow implicit returns
"--outFile", "build/" + baseFileName + ".js", // Output a single JS file in the build dir
"--removeComments", // Remove comments
"--target", projectConfig.TypeScript.Target, // Set the target
typescriptFileName, // Append the .ts name
}
commandOutput := codeutilsShared.ExecCommand("tsc", typescriptCompileFlags, false) // Call execCommand and get its commandOutput
if !strings.Contains(commandOutput, "error TS") { // If tsc did not report any errors
if projectConfig.TypeScript.MinifyContent { // If we should minify the content
minifyFailure := MinifyJavaScript() // Call the minification func, set any error to minifyFailure
if minifyFailure == nil { // If there was no error minifying
minifyFileName := baseFileName + ".min.js"
if projectConfig.TypeScript.UseLibreJSHeader && (projectConfig.TypeScript.LibreJSLicense != "") { // If we should use the LibreJSHeader and the license value is set
var finalMinifiedContent string // Define finalMinifiedContent as the content we get from AddLicense
finalMinifiedContent, compileError = librejsgopher.AddLicense(projectConfig.TypeScript.LibreJSLicense, "build/"+minifyFileName, true) // Add the requested license to the JS file, return content
if (compileError == nil) && projectConfig.TypeScript.UniqueHash { // If there was no issue adding the license and we should be using a unique hash
uniqueFileName := baseFileName + "-" + codeutilsShared.Sha512Sum(finalMinifiedContent, 1)[0:12] + ".min.js" // Append first 12 characters of hash
os.Rename("build/"+minifyFileName, "build/"+uniqueFileName) // Move the file to one with a unique file name
minifyFileName = uniqueFileName // Change minifyFileName to uniqueName
}
}
if projectConfig.UsesTests { // If we are using tests
compileError = codeutilsShared.CopyFile("build/"+baseFileName+".js", "tests/design/js/"+baseFileName+".js") // Copy over the non-minified JS to the test js folder
compileError = codeutilsShared.CopyFile("build/"+minifyFileName, "tests/design/js/"+minifyFileName) // Copy over the minified JS from build to the test js folder
}
} else { // If there was an error minifying
compileError = minifyFailure // Set compileError to the minifyFailure
}
}
} else { // If tsc did report errors
compileError = errors.New(commandOutput) // Set compileError to the commandOutput
}
} else { // If src/typescript is not a valid directory
compileError = errors.New("typescript" + dirDoesNotExistInSrc)
}
} else { // If the typescript compiler is not installed on this system
compileError = errors.New("tsc" + executableNotInstalled)
}
return compileError
}