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2019-04-14ripgrep: increase pcre2's default JIT stack sizeAndrew Gallant
The default stack size is 32KB, and this increases it to 10MB. 32KB is pretty paltry in the environments in which ripgrep runs, and 10MB is easily afforded as a maximum size. (The size limit we set for Rust's regex engine is considerably larger.) This was motivated due to the fack that JIT stack limits have been observed to be hit in the wild: https://github.com/Microsoft/vscode/issues/64606
2019-04-14ripgrep: add --pcre2-version flagAndrew Gallant
This flag will output details about the version of PCRE2 that ripgrep is using (if any).
2019-04-14ripgrep: add -I as a short option for --no-filenameAndrew Gallant
This flag is commonly used in pipelines and it can be annoying to write it out every time you need it. Ideally, we would use -h for this to match GNU grep, but -h is used to print help output. Closes #1185
2019-04-14printer: support previews for long linesAndrew Gallant
This commit adds support for showing a preview of long lines. While the default still remains as completely suppressing the entire line, this new functionality will show the first N graphemes of a matching line, including the number of matches that are suppressed. This was unfortunately a fairly invasive change to the printer that required a bit of refactoring. On the bright side, the single line and multi-line coloring are now more unified than they were before. Closes #1078
2019-04-14binary: rejigger ripgrep's handling of binary filesAndrew Gallant
This commit attempts to surface binary filtering in a slightly more user friendly way. Namely, before, ripgrep would silently stop searching a file if it detected a NUL byte, even if it had previously printed a match. This can lead to the user quite reasonably assuming that there are no more matches, since a partial search is fairly unintuitive. (ripgrep has this behavior by default because it really wants to NOT search binary files at all, just like it doesn't search gitignored or hidden files.) With this commit, if a match has already been printed and ripgrep detects a NUL byte, then it will print a warning message indicating that the search stopped prematurely. Moreover, this commit adds a new flag, --binary, which causes ripgrep to stop filtering binary files, but in a way that still avoids dumping binary data into terminals. That is, the --binary flag makes ripgrep behave more like grep's default behavior. For files explicitly specified in a search, e.g., `rg foo some-file`, then no binary filtering is applied (just like no gitignore and no hidden file filtering is applied). Instead, ripgrep behaves as if you gave the --binary flag for all explicitly given files. This was a fairly invasive change, and potentially increases the UX complexity of ripgrep around binary files. (Before, there were two binary modes, where as now there are three.) However, ripgrep is now a bit louder with warning messages when binary file detection might otherwise be hiding potential matches, so hopefully this is a net improvement. Finally, the `-uuu` convenience now maps to `--no-ignore --hidden --binary`, since this is closer to the actualy intent of the `--unrestricted` flag, i.e., to reduce ripgrep's smart filtering. As a consequence, `rg -uuu foo` should now search roughly the same number of bytes as `grep -r foo`, and `rg -uuua foo` should search roughly the same number of bytes as `grep -ra foo`. (The "roughly" weasel word is used because grep's and ripgrep's binary file detection might differ somewhat---perhaps based on buffer sizes---which can impact exactly what is and isn't searched.) See the numerous tests in tests/binary.rs for intended behavior. Fixes #306, Fixes #855
2019-04-07regex: make multi-literal searcher fasterAndrew Gallant
This makes the case of searching for a dictionary of a very large number of literals much much faster. (~10x or so.) In particular, we achieve this by short-circuiting the construction of a full regex when we know we have a simple alternation of literals. Building the regex for a large dictionary (>100,000 literals) turns out to be quite slow, even if it internally will dispatch to Aho-Corasick. Even that isn't quite enough. It turns out that even *parsing* such a regex is quite slow. So when the -F/--fixed-strings flag is set, we short circuit regex parsing completely and jump straight to Aho-Corasick. We aren't quite as fast as GNU grep here, but it's much closer (less than 2x slower). In general, this is somewhat of a hack. In particular, it seems plausible that this optimization could be implemented entirely in the regex engine. Unfortunately, the regex engine's internals are just not amenable to this at all, so it would require a larger refactoring effort. For now, it's good enough to add this fairly simple hack at a higher level. Unfortunately, if you don't pass -F/--fixed-strings, then ripgrep will be slower, because of the aforementioned missing optimization. Moreover, passing flags like `-i` or `-S` will cause ripgrep to abandon this optimization and fall back to something potentially much slower. Again, this fix really needs to happen inside the regex engine, although we might be able to special case -i when the input literals are pure ASCII via Aho-Corasick's `ascii_case_insensitive`. Fixes #497, Fixes #838
2019-04-06searcher: add option to disable BOM sniffinglesnyrumcajs
This commit adds a new encoding feature where the -E/--encoding flag will now accept a value of 'none'. When given this value, all encoding related machinery is disabled and ripgrep will search the raw bytes of the file, including the BOM if it's present. Closes #1207, Closes #1208
2019-04-06ripgrep: remove extra new-line after Clap outputdana
PR #1222
2019-04-05config: switch to using bstrsAndrew Gallant
This lets us implement correct Unicode trimming and also simplifies the parsing logic a bit. This also removes the last platform specific bits of code in ripgrep core.
2019-01-29deprecated: remove use of ATOMIC_BOOL_INITAndrew Gallant
Our MSRV is high enough that we can use const functions now.
2019-01-26search: fix -F and -f interaction bugAndrew Gallant
This fixes what appears to be a pretty egregious regression where the `-F/--fixed-strings` flag wasn't be applied to patterns supplied via the `-f/--file` flag. The same bug existed for the `-x/--line-regexp` flag as well, which we fix here. Fixes #1176
2019-01-26exit: tweak exit status logicAndrew Gallant
This changes how ripgrep emit exit status codes. In particular, any error that occurs while searching will now cause ripgrep to emit a `2` exit code, where as it previously would emit either a `0` or a `1` code based on whether it matched or not. That is, ripgrep would only emit a `2` exit code for a catastrophic error. This tweak includes additional logic that GNU grep adheres to, which seems like good sense. Namely, if -q/--quiet is given, and an error occurs and a match occurs, then ripgrep will emit a `0` exit code. Closes #1159
2019-01-26args: prevent panicking in 'rg -h | rg'Andrew Gallant
Previously, we relied on clap to handle printing either an error message, or --help/--version output, in addition to setting the exit status code. Unfortunately, for --help/--version output, clap was panicking if the write failed, which can happen in fairly common scenarios via a broken pipe error. e.g., `rg -h | head`. We fix this by using clap's "safe" API and doing the printing ourselves. We also set the exit code to `2` when an invalid command has been given. Fixes #1125 and partially addresses #1159
2019-01-26doc: clarify automatic encoding detectionAndrew Gallant
Fixes #1103
2019-01-26fmt: shorten --ignore-file-case-insensitive descriptionAndrew Gallant
2019-01-26config: add --no-ignore-dot flagAndrew Gallant
This flag causes ripgrep to ignore `.ignore` files. Closes #1138
2019-01-23ripgrep: don't skip stdout in --files modeRob Lourens
Specifically, this avoids triggering Windows antimalware when in --files mode. See also #600. Fixes #1121
2019-01-22grep-cli: support Brotli/Zstd decompressiondana
Fixes #1099
2019-01-22ripgrep: add --ignore-file-case-insensitiveDavid Torosyan
The --ignore-file-case-insensitive flag causes all .gitignore/.rgignore/.ignore files to have their globs matched without regard for case. Because this introduces a potentially significant performance regression, this is always disabled by default. Users that need case insensitive matching can enable it on a case by case basis. Closes #1164, Closes #1170
2019-01-19edition: move core ripgrep to Rust 2018Andrew Gallant
2019-01-05doc: fix typoMarco Hinz
2018-11-06doc: escape braces in AsciiDocAndrew Gallant
This commit fixes a bug where AsciiDoc would drop any line containing a '{foo}' because it interpreted it as an undefined attribute reference: > Simple attribute references take the form {<name>}. If the attribute name > is defined its text value is substituted otherwise the line containing the > reference is dropped from the output. See: https://www.methods.co.nz/asciidoc/chunked/ch30.html We fix this by simply replacing all occurrences of '{' and '}' with their escaped forms: '&#123;' and '&#125;'. Fixes #1101
2018-09-25ripgrep: suggest -U/--multilineAndrew Gallant
When a "\n literal is not allowed" error is reported, ripgrep will now suggest the use of the -U/--multiline flag, which enables matching newlines. Fixes #1055
2018-09-10doc: fix typoGabe Berke-Williams
"cretion" -> "creation" PR #1045
2018-09-08pcre2: use jit_if_availablegrep-pcre2-0.1.2grep-0.2.3Andrew Gallant
This will allow PCRE2 to fall back to non-JIT matching when running on platforms without JIT support. ref https://github.com/BurntSushi/rust-pcre2/issues/3
2018-09-04ripgrep: add --pre-glob flagAndrew Gallant
The --pre-glob flag is like the --glob flag, except it applies to filtering files through the preprocessor instead of for search. This makes it possible to apply the preprocessor to only a small subset of files, which can greatly reduce the process overhead of using a preprocessor when searching large directories.
2018-09-04ripgrep: add --line-buffered and --block-bufferedAndrew Gallant
These flags provide granular control over ripgrep's buffering strategy. The --line-buffered flag can be genuinely useful in certain types of shell pipelines. The --block-buffered flag has a murkier use case, but we add it for completeness.
2018-09-04grep-cli: introduce new grep-cli crateAndrew Gallant
This commit moves a lot of "utility" code from ripgrep core into grep-cli. Any one of these things might not be worth creating a new crate, but combining everything together results in a fair number of a convenience routines that make up a decent sized crate. There is potentially more we could move into the crate, but much of what remains in ripgrep core is almost entirely dealing with the number of flags we support. In the course of doing moving things to the grep-cli crate, we clean up a lot of gunk and improve failure modes in a number of cases. In particular, we've fixed a bug where other processes could deadlock if they write too much to stderr. Fixes #990
2018-08-27doc: clarify and fix typoAndrew Gallant
Clarify that --byte-offset may be wrong if the source isn't being read directly. Also tweak the README a bit. And remove a damned Oxford comma.
2018-08-27ripgrep: use 'ignore' for skipping stdoutAndrew Gallant
This removes ripgrep-specific code for filtering files that correspond to stdout and instead uses the 'ignore' crate's functionality for doing the same.
2018-08-26ripgrep: add --sort and --sortr flagsAndrew Gallant
These flags each accept one of five choices: none, path, modified, accessed or created. The value indicates how the results are sorted. For --sort, results are sorted in ascending order where as for --sortr, results are sorted in descending order. Closes #404
2018-08-26ignore: add 'same_file_system' optionAndrew Gallant
This commit adds a 'same_file_system' option to the walk builder. For single threaded walking, it defers to the walkdir crate, which has the same option. The bulk of this commit implements this flag for the parallel walker. We add one very feeble test for this. The parallel walker is now officially a complete mess. Closes #321
2018-08-25ripgrep: use winapi-util for stdin_is_readableAndrew Gallant
2018-08-21doc: update ripgrep's descriptionAndrew Gallant
This now mentions PCRE2 support.
2018-08-21ripgrep: remove workaround for std bugAndrew Gallant
This commit undoes a work-around for a bug in Rust's standard library that prevented correct file type detection on Windows in OneDrive directories. We remove the work-around because we are moving to a latest-stable Rust version policy, which has included this fix for a while now. ref #705, https://github.com/rust-lang/rust/issues/46484
2018-08-21ripgrep: move minimum version to Rust stableAndrew Gallant
This also updates some code to make use of our more liberal versioning requirement, including the use of crossbeam-channel instead of the MsQueue from the older an unmaintained crossbeam 0.3. This does regrettably add a sizable number of dependencies, however, compile times seem mostly unaffected. Closes #1019
2018-08-21ripgrep: make --no-pcre2-unicode the canonical flagAndrew Gallant
Previously, we used --pcre2-unicode as the canonical flag despite the fact that it is enabled by default, which is inconsistent with how we handle other similar flags. The reason why --pcre2-unicode was made the canonical flag was to make it easier to discover since it would be sorted near the --pcre2 flag. To solve that problem, we simply start a convention that lists related flags in the docs. Fixes #1022
2018-08-20ripgrep: small cleanupsgrep-search-0.1.0grep-regex-0.1.0grep-printer-0.1.0grep-pcre2-0.1.0grep-matcher-0.1.0grep-0.2.0Andrew Gallant
2018-08-20ripgrep: add --no-multiline-dotalldana
2018-08-20ripgrep: fix typos in option descriptionsdana
2018-08-20ripgrep: migrate to libripgrepAndrew Gallant
This commit does the work to delete the old `grep` crate and effectively rewrite most of ripgrep core to use the new libripgrep crates. The new `grep` crate is now a facade that collects the various crates that make up libripgrep. The most complex part of ripgrep core is now arguably the translation between command line parameters and the library options, which is ultimately where we want to be.
2018-07-22ripgrep: when given no patterns, don't matchAndrew Gallant
Generally speaking, ripgrep prevents the case of not having any patterns via its arg parsing. However, it is possible for users to provide a file of patterns via the `-f` flag. If that file is empty, then ripgrep has nothing to search for and therefore should not ever produce any match. One way of fixing this might be to replace the absence of patterns with a pattern that can never match, but this still requires opening and searching through every file, which is quite a waste. Instead, we detect this case explicitly and quit early. Fixes #900
2018-07-22ripgrep: stop early when --files --quiet is usedAndrew Gallant
This commit tweaks the implementation of the --files flag to stop early when --quiet is provided. Fixes #907
2018-07-22ripgrep: don't skip tar archivesAndrew Gallant
This removes logic from the decompressor for skipping tar archives. This logic was originally added under the assumption that we probably want to avoid the cost of reading them. However, this is generally inconsistent with how ripgrep treats files like tar archives: it should search them and do binary detection like normal. Fixes #918
2018-07-22ripgrep: add --no-ignore-global flagAndrew Gallant
This commit adds a new --no-ignore-global flag that permits disabling the use of global gitignore filtering. Global gitignores are generally found in `$HOME/.config/git/ignore`, but its location can be configured via git's `core.excludesFile` option. Closes #934
2018-07-22ripgrep: improve usage documentationAndrew Gallant
This shows an example for reading stdin. Fixes #951
2018-07-22ripgrep: better --path-separator error messageAndrew Gallant
This commit improves the error message when --path-separator fails. Namely, it prints the separator it got and also prints a notice for Windows users for common failure modes. Fixes #957
2018-07-21ripgrep: add --no-pre switchAndrew Gallant
This switch explicitly disables the --pre behavior. An empty string will also disable --pre behavior, but actually utterring an empty flag value is quite awkward, so we provide an explicit switch to do the same thing. Thanks to @c-blake for pointing this out.
2018-07-21ripgrep: replace decoder with encoding_rs_ioAndrew Gallant
This commit mostly moves the transcoder implementation to its own crate: https://github.com/BurntSushi/encoding_rs_io The new crate adds clear documentation and cleans up the implementation to fully implement the contract of io::Read.
2018-07-21ripgrep: reformat --pre warningAndrew Gallant