gogr - Go Grep

gogr makes it easier to perform sophisticated queries to Go sources using grep.

Examples

# find all methods
find /path/to/module -name '*.go' | gogr | grep ':method:'

# find all structs that have a field X of type float64 
find /path/to/module -name '*.go' | gogr | grep ':struct:' | grep '.X float64'

# find all structs that have a method with a given signature: 'Foo() string'
find /path/to/module -name '*.go' | gogr | grep ':method:' | grep '.Foo() string'

# find all calls to log that write a given substring
find /path/to/module -name '*.go' | gogr | grep ':call:' | grep 'log.Printf' | grep -E '".*processor.*"'

How it works

The utility parses Go sources and transforms them in the following way:

• multiline calls turned into a single line
• multiline function declarations turned into a single line
• multiline conditions in if / for statements turned into a single line
• members of interfaces and structures are enriched with their type name and printed one member per line