nushell-plugins/scripts/detect_breaking_changes.nu
Jesús Pérez be62c8701a feat: Add ARGUMENTS documentation and interactive update mode
- Add `show-arguments` recipe documenting all version update commands
- Add `complete-update-interactive` recipe for manual confirmations
- Maintain `complete-update` as automatic mode (no prompts)
- Update `update-help` to reference new recipes and modes
- Document 7-step workflow and step-by-step differences

Changes:
- complete-update: Automatic mode (recommended for CI/CD)
- complete-update-interactive: Interactive mode (with confirmations)
- show-arguments: Complete documentation of all commands and modes
- Both modes share same 7-step workflow with different behavior in Step 4
2025-10-19 00:05:16 +01:00

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#!/usr/bin/env nu
# Detect Breaking Changes Script
# Detects API changes and breaking changes between Nushell versions
#
# Usage:
# detect_breaking_changes.nu 0.107.1 0.108.0 # Compare two versions
# detect_breaking_changes.nu --scan-plugins # Scan plugins for usage of breaking APIs
# detect_breaking_changes.nu --export # Export breaking changes report
use lib/common_lib.nu *
# Known breaking changes database
const BREAKING_CHANGES = {
"0.108.0": [
{
type: "command_rename"
old_name: "into value"
new_name: "detect type"
description: "Command renamed and behavior changed - doesn't operate on cells anymore"
impact: "high"
migration: "Replace 'into value' with 'detect type' and review usage for cell operations"
},
{
type: "behavior_change"
component: "stream_error_handling"
description: "Collecting a stream that contains errors now raises an error itself"
impact: "medium"
migration: "Add explicit error handling when collecting streams that might contain errors"
},
{
type: "feature_addition"
feature: "mcp"
description: "MCP (Model Context Protocol) feature added as optional feature"
impact: "none"
migration: "Enable with: cargo build --features mcp"
}
]
}
# Main entry point
def main [
from_version?: string # Source version (e.g., "0.107.1")
to_version?: string # Target version (e.g., "0.108.0")
--scan-plugins # Scan plugins for breaking API usage
--export # Export breaking changes report
] {
log_info "Nushell Breaking Changes Detector"
# If versions provided, show breaking changes between them
if ($from_version | is-not-empty) and ($to_version | is-not-empty) {
show_breaking_changes $from_version $to_version
} else if $scan_plugins {
scan_plugins_for_breaking_changes
} else {
# Show all known breaking changes
show_all_breaking_changes
}
if $export {
export_breaking_changes_report
}
}
# Show breaking changes between two versions
def show_breaking_changes [
from_version: string
to_version: string
] {
log_info $"Analyzing breaking changes: [$from_version] → [$to_version]"
# Get breaking changes for target version
let changes = get_breaking_changes_for_version $to_version
if ($changes | is-empty) {
log_success $"No known breaking changes between [$from_version] and [$to_version]"
return
}
log_warn $"Found ($changes | length) breaking changes in version [$to_version]"
# Display by impact level
display_breaking_changes_by_impact $changes
}
# Get breaking changes for a specific version
def get_breaking_changes_for_version [
version: string
]: nothing -> list<record> {
$BREAKING_CHANGES | get -i $version | default []
}
# Display breaking changes organized by impact
def display_breaking_changes_by_impact [
changes: list<record>
] {
# Group by impact
let high_impact = $changes | where impact == "high"
let medium_impact = $changes | where impact == "medium"
let low_impact = $changes | where impact == "low" or impact == "none"
if ($high_impact | length) > 0 {
log_error "\n=== HIGH IMPACT CHANGES ==="
display_change_list $high_impact
}
if ($medium_impact | length) > 0 {
log_warn "\n=== MEDIUM IMPACT CHANGES ==="
display_change_list $medium_impact
}
if ($low_impact | length) > 0 {
log_info "\n=== LOW/NO IMPACT CHANGES ==="
display_change_list $low_impact
}
}
# Display list of changes
def display_change_list [
changes: list<record>
] {
$changes | each {|change|
let type_badge = match $change.type {
"command_rename" => "🔄 RENAME",
"behavior_change" => "⚠️ BEHAVIOR",
"api_removal" => "❌ REMOVAL",
"feature_addition" => "✨ FEATURE",
_ => "📝 CHANGE"
}
print $"\n ($type_badge)"
if ($change | get -i old_name | is-not-empty) {
print $" Old: ($change.old_name) → New: ($change.new_name)"
}
if ($change | get -i component | is-not-empty) {
print $" Component: ($change.component)"
}
if ($change | get -i feature | is-not-empty) {
print $" Feature: ($change.feature)"
}
print $" Description: ($change.description)"
print $" Migration: ($change.migration)"
}
}
# Show all known breaking changes
def show_all_breaking_changes [] {
log_info "All Known Breaking Changes"
let all_versions = $BREAKING_CHANGES | columns | sort
$all_versions | each {|version|
let changes = $BREAKING_CHANGES | get $version
log_info $"\n=== Version ($version) - ($changes | length) changes ==="
display_breaking_changes_by_impact $changes
}
}
# Scan plugins for usage of breaking APIs
def scan_plugins_for_breaking_changes [] {
log_info "Scanning plugins for breaking API usage..."
let plugin_dirs = get_plugin_directories
log_info $"Scanning ($plugin_dirs | length) custom plugins"
mut findings = []
for plugin_dir in $plugin_dirs {
let plugin_name = get_plugin_name $plugin_dir
log_info $"Scanning: [$plugin_name]..."
let plugin_findings = scan_plugin_directory $plugin_dir
if ($plugin_findings | length) > 0 {
$findings = ($findings | append {
plugin: $plugin_name
findings: $plugin_findings
})
}
}
# Display results
if ($findings | length) > 0 {
log_warn $"\n=== Breaking API Usage Found ==="
$findings | each {|result|
log_warn $"\n[$result.plugin]"
$result.findings | each {|finding|
print $" • ($finding.pattern) in ($finding.file):($finding.line)"
print $" Context: ($finding.context)"
}
}
log_info "\nReview these findings and update code accordingly"
} else {
log_success "No breaking API usage detected!"
}
}
# Scan a plugin directory for breaking API usage
def scan_plugin_directory [
plugin_dir: string
]: nothing -> list<record> {
mut findings = []
# Get all Rust source files
let rust_files = glob $"($plugin_dir)/src/**/*.rs"
for file in $rust_files {
# Check for "into value" usage (breaking in 0.108.0)
let into_value_matches = try {
open $file
| lines
| enumerate
| where {|row| $row.item =~ "into value"}
} catch {
[]
}
if ($into_value_matches | length) > 0 {
for match in $into_value_matches {
$findings = ($findings | append {
pattern: "into value (renamed to 'detect type')"
file: $file
line: ($match.index + 1)
context: ($match.item | str trim)
})
}
}
# Check for stream collection patterns (behavior changed in 0.108.0)
let collect_matches = try {
open $file
| lines
| enumerate
| where {|row| $row.item =~ "collect\(\)" and $row.item =~ "stream"}
} catch {
[]
}
if ($collect_matches | length) > 0 {
for match in $collect_matches {
$findings = ($findings | append {
pattern: "stream.collect() (error behavior changed)"
file: $file
line: ($match.index + 1)
context: ($match.item | str trim)
})
}
}
}
$findings
}
# Export breaking changes report
def export_breaking_changes_report [] {
let output_file = "./tmp/breaking_changes_report.json"
ensure_dir "./tmp"
let report = {
generated_at: (date now | format date "%Y-%m-%d %H:%M:%S")
breaking_changes_database: $BREAKING_CHANGES
versions: ($BREAKING_CHANGES | columns)
}
$report | to json | save -f $output_file
log_success $"Breaking changes report exported to: ($output_file)"
}
# Check if code is affected by breaking changes
def "main check-code" [
code_snippet: string # Code to check
] {
log_info "Checking code for breaking API usage..."
mut issues = []
# Check for "into value"
if ($code_snippet =~ "into value") {
$issues = ($issues | append {
pattern: "into value"
severity: "high"
suggestion: "Replace with 'detect type' (note: behavior changed)"
})
}
# Check for direct stream collection
if ($code_snippet =~ "\.collect\(\)") {
$issues = ($issues | append {
pattern: "stream.collect()"
severity: "medium"
suggestion: "Add explicit error handling for stream errors"
})
}
# Display results
if ($issues | length) > 0 {
log_warn "Potential breaking API usage detected:"
$issues | each {|issue|
let severity_color = if $issue.severity == "high" { "red" } else { "yellow" }
print $" (ansi $severity_color)• ($issue.pattern)(ansi reset)"
print $" → ($issue.suggestion)"
}
} else {
log_success "No breaking API usage detected in code snippet"
}
}
# Generate migration guide for a specific version
def "main migration-guide" [
version: string # Version to generate guide for
] {
log_info $"Generating migration guide for version [$version]"
let changes = get_breaking_changes_for_version $version
if ($changes | is-empty) {
log_info $"No breaking changes documented for version [$version]"
return
}
# Generate markdown migration guide
let guide = generate_migration_markdown $version $changes
let output_file = $"./tmp/MIGRATION_($version).md"
ensure_dir "./tmp"
$guide | save -f $output_file
log_success $"Migration guide generated: ($output_file)"
}
# Generate migration guide in markdown format
def generate_migration_markdown [
version: string
changes: list<record>
]: nothing -> string {
mut content = $"# Migration Guide to Nushell ($version)\n\n"
$content = $"($content)Generated: (date now | format date '%Y-%m-%d %H:%M:%S')\n\n"
$content = $"($content)## Breaking Changes\n\n"
$content = $"($content)This guide covers ($changes | length) breaking changes in Nushell ($version).\n\n"
# Group by impact
let high_impact = $changes | where impact == "high"
let medium_impact = $changes | where impact == "medium"
let low_impact = $changes | where impact == "low" or impact == "none"
if ($high_impact | length) > 0 {
$content = $"($content)### ⚠️ High Impact Changes\n\n"
for change in $high_impact {
$content = ($content + (format_change_markdown $change) + "\n")
}
}
if ($medium_impact | length) > 0 {
$content = $"($content)### 📝 Medium Impact Changes\n\n"
for change in $medium_impact {
$content = ($content + (format_change_markdown $change) + "\n")
}
}
if ($low_impact | length) > 0 {
$content = $"($content)### ✨ Low/No Impact Changes\n\n"
for change in $low_impact {
$content = ($content + (format_change_markdown $change) + "\n")
}
}
$content
}
# Format single change as markdown
def format_change_markdown [
change: record
]: nothing -> string {
mut content = $"#### ($change.type | str title-case)\n\n"
if ($change | get -i old_name | is-not-empty) {
$content = $"($content)**Old**: `($change.old_name)` → **New**: `($change.new_name)`\n\n"
}
$content = $"($content)**Description**: ($change.description)\n\n"
$content = $"($content)**Migration**: ($change.migration)\n\n"
$content
}
# Add a new breaking change to the database
def "main add" [
version: string # Version this applies to
type: string # Type of change
description: string # Description
impact: string # Impact level (high/medium/low/none)
migration: string # Migration instructions
--old-name: string # Old name (for renames)
--new-name: string # New name (for renames)
] {
log_info "This command would add a new breaking change to the database"
log_warn "Note: The database is currently hardcoded in the script"
log_info "For production use, consider storing in external TOML/JSON file"
let new_change = {
type: $type
description: $description
impact: $impact
migration: $migration
}
# Add optional fields
let new_change = if ($old_name | is-not-empty) {
$new_change | merge {old_name: $old_name}
} else {
$new_change
}
let new_change = if ($new_name | is-not-empty) {
$new_change | merge {new_name: $new_name}
} else {
$new_change
}
log_info "New change to add:"
print ($new_change | to json)
}