Find and replace text in source files.
Install rust and cargo, for example with rustup.
Then run:
cargo install ruplacer
Pre-compiled binaries for Linux, macOS and Windows are available as assests of the latest release.
ruplacer can also be installed from homebrew:
$ brew install supertanker/homebrew-repo/ruplacer
ruplacer is also on the Arch Linux User Repository
ruplacer pattern replacement [path]
If path is not given, it defaults to the current working directory.
Ruplacer will then walk through every file in <path>, while honoring .gitignore files found on the way.
Binary files and text files containing non-UTF8 characters will be skipped. Then for every remaining file, it will read the contents, replace all lines matching the pattern by the replacement, and print the difference:
``` $ replacer old new src/ Patching src/a_dir/sub/foo.txt -- old is everywhere, old is old ++ new is everywhere, new is new
Patching src/top.txt -- old is nice ++ new is nice ```
If you are OK with the replacements, re-run ruplacer with the --go option to actually write the files.
By default, pattern will be compiled into a Rust regex.
Note that it's slightly different from Perl-style regular expressions. Also, you must use $1, $2 to reference
groups captures in pattern in replacement.
For instance, to replace dates looking like MM/DD/YYYY to YYYY-MM-DD, you would use:
$ ruplacer '(\d{2})/(\d{2})/(\d{4})' '$3-$1-$2'
--no-regex to prevent ruplacer from interpreting the pattern as a regex.--subvert to perform replacements across a variety of case styles:
$ ruplacer --subvert foo_bar spam_eggs
Patching src/foo.txt
-- foo_bar, FooBar, and FOO_BAR!
++ spam_eggs, SpamEggs, and SPAM_EGGS!