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107 lines
3.0 KiB
Go
107 lines
3.0 KiB
Go
package config
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import (
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"fmt"
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"os"
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"gopkg.in/yaml.v2"
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)
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// Config represents the configuration for the rollup tool
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type Config struct {
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// FileExtensions is a list of file extensions to include in the rollup
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FileExtensions []string `yaml:"file_extensions"`
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// IgnorePaths is a list of glob patterns for paths to ignore
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IgnorePaths []string `yaml:"ignore_paths"`
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// CodeGeneratedPaths is a list of glob patterns for code-generated files
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CodeGeneratedPaths []string `yaml:"code_generated_paths"`
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// Sites is a list of site configurations for web scraping
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Sites []SiteConfig `yaml:"sites"`
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// OutputType specifies how the output should be generated
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OutputType string `yaml:"output_type"`
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// RequestsPerSecond limits the rate of web requests
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RequestsPerSecond *float64 `yaml:"requests_per_second,omitempty"`
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// BurstLimit sets the maximum burst size for rate limiting
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BurstLimit *int `yaml:"burst_limit,omitempty"`
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}
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// SiteConfig contains configuration for scraping a single site
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type SiteConfig struct {
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// BaseURL is the starting point for scraping this site
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BaseURL string `yaml:"base_url"`
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// CSSLocator is used to extract specific content
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CSSLocator string `yaml:"css_locator"`
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// ExcludeSelectors lists CSS selectors for content to exclude
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ExcludeSelectors []string `yaml:"exclude_selectors"`
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// AllowedPaths lists paths that are allowed to be scraped
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AllowedPaths []string `yaml:"allowed_paths"`
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// ExcludePaths lists paths that should not be scraped
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ExcludePaths []string `yaml:"exclude_paths"`
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// OutputAlias provides an alternative name for output files
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OutputAlias string `yaml:"output_alias"`
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// PathOverrides allows for path-specific configurations
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PathOverrides []PathOverride `yaml:"path_overrides"`
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}
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// PathOverride allows for path-specific configurations
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type PathOverride struct {
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// Path is the URL path this override applies to
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Path string `yaml:"path"`
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// CSSLocator overrides the site-wide CSS locator for this path
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CSSLocator string `yaml:"css_locator"`
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// ExcludeSelectors overrides the site-wide exclude selectors for this path
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ExcludeSelectors []string `yaml:"exclude_selectors"`
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}
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func Load(configPath string) (*Config, error) {
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data, err := os.ReadFile(configPath)
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if err != nil {
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return nil, fmt.Errorf("error reading config file: %v", err)
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}
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var config Config
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err = yaml.Unmarshal(data, &config)
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if err != nil {
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return nil, fmt.Errorf("error parsing config file: %v", err)
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}
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if err := config.Validate(); err != nil {
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return nil, fmt.Errorf("invalid configuration: %v", err)
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}
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return &config, nil
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}
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// Validate checks the configuration for any invalid values
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func (c *Config) Validate() error {
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if c.RequestsPerSecond != nil && *c.RequestsPerSecond <= 0 {
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return fmt.Errorf("requests_per_second must be positive")
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}
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if c.BurstLimit != nil && *c.BurstLimit <= 0 {
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return fmt.Errorf("burst_limit must be positive")
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}
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for _, site := range c.Sites {
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if site.BaseURL == "" {
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return fmt.Errorf("base_url must be specified for each site")
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}
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}
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return nil
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}
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