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Merge pull request #1611 from Byron/merge
octopus-merge (part 3.5: gix-api and CLI)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| use crate::OutputFormat; | ||
| use anyhow::{bail, Context}; | ||
| use gix::bstr::BString; | ||
| use gix::bstr::ByteSlice; | ||
| use gix::merge::blob::builtin_driver::binary; | ||
| use gix::merge::blob::builtin_driver::text::Conflict; | ||
| use gix::merge::blob::pipeline::WorktreeRoots; | ||
| use gix::merge::blob::{Resolution, ResourceKind}; | ||
| use gix::object::tree::EntryKind; | ||
| use gix::Id; | ||
| use std::path::Path; | ||
|
|
||
| pub fn file( | ||
| repo: gix::Repository, | ||
| out: &mut dyn std::io::Write, | ||
| format: OutputFormat, | ||
| conflict: Option<gix::merge::blob::builtin_driver::text::Conflict>, | ||
| base: BString, | ||
| ours: BString, | ||
| theirs: BString, | ||
| ) -> anyhow::Result<()> { | ||
| if format != OutputFormat::Human { | ||
| bail!("JSON output isn't implemented yet"); | ||
| } | ||
| let index = &repo.index_or_load_from_head()?; | ||
| let specs = repo.pathspec( | ||
| false, | ||
| [base, ours, theirs], | ||
| true, | ||
| index, | ||
| gix::worktree::stack::state::attributes::Source::WorktreeThenIdMapping.adjust_for_bare(repo.is_bare()), | ||
| )?; | ||
| // TODO: there should be a way to normalize paths without going through patterns, at least in this case maybe? | ||
| // `Search` actually sorts patterns by excluding or not, all that can lead to strange results. | ||
| let mut patterns = specs.search().patterns().map(|p| p.path().to_owned()); | ||
| let base = patterns.next().unwrap(); | ||
| let ours = patterns.next().unwrap(); | ||
| let theirs = patterns.next().unwrap(); | ||
|
|
||
| let base_id = repo.rev_parse_single(base.as_bstr()).ok(); | ||
| let ours_id = repo.rev_parse_single(ours.as_bstr()).ok(); | ||
| let theirs_id = repo.rev_parse_single(theirs.as_bstr()).ok(); | ||
| let roots = worktree_roots(base_id, ours_id, theirs_id, repo.work_dir())?; | ||
|
|
||
| let mut cache = repo.merge_resource_cache(roots)?; | ||
| let null = repo.object_hash().null(); | ||
| cache.set_resource( | ||
| base_id.map_or(null, Id::detach), | ||
| EntryKind::Blob, | ||
| base.as_bstr(), | ||
| ResourceKind::CommonAncestorOrBase, | ||
| &repo.objects, | ||
| )?; | ||
| cache.set_resource( | ||
| ours_id.map_or(null, Id::detach), | ||
| EntryKind::Blob, | ||
| ours.as_bstr(), | ||
| ResourceKind::CurrentOrOurs, | ||
| &repo.objects, | ||
| )?; | ||
| cache.set_resource( | ||
| theirs_id.map_or(null, Id::detach), | ||
| EntryKind::Blob, | ||
| theirs.as_bstr(), | ||
| ResourceKind::OtherOrTheirs, | ||
| &repo.objects, | ||
| )?; | ||
|
|
||
| let mut options = repo.blob_merge_options()?; | ||
| if let Some(conflict) = conflict { | ||
| options.text.conflict = conflict; | ||
| options.resolve_binary_with = match conflict { | ||
| Conflict::Keep { .. } => None, | ||
| Conflict::ResolveWithOurs => Some(binary::ResolveWith::Ours), | ||
| Conflict::ResolveWithTheirs => Some(binary::ResolveWith::Theirs), | ||
| Conflict::ResolveWithUnion => None, | ||
| }; | ||
| } | ||
| let platform = cache.prepare_merge(&repo.objects, options)?; | ||
| let labels = gix::merge::blob::builtin_driver::text::Labels { | ||
| ancestor: Some(base.as_bstr()), | ||
| current: Some(ours.as_bstr()), | ||
| other: Some(theirs.as_bstr()), | ||
| }; | ||
| let mut buf = repo.empty_reusable_buffer(); | ||
| let (pick, resolution) = platform.merge(&mut buf, labels, repo.command_context()?)?; | ||
| let buf = platform.buffer_by_pick(pick).unwrap_or(&buf); | ||
| out.write_all(buf)?; | ||
|
|
||
| if resolution == Resolution::Conflict { | ||
| bail!("File conflicted") | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn worktree_roots( | ||
| base: Option<gix::Id<'_>>, | ||
| ours: Option<gix::Id<'_>>, | ||
| theirs: Option<gix::Id<'_>>, | ||
| workdir: Option<&Path>, | ||
| ) -> anyhow::Result<gix::merge::blob::pipeline::WorktreeRoots> { | ||
| let roots = if base.is_none() || ours.is_none() || theirs.is_none() { | ||
| let workdir = workdir.context("A workdir is required if one of the bases are provided as path.")?; | ||
| gix::merge::blob::pipeline::WorktreeRoots { | ||
| current_root: ours.is_none().then(|| workdir.to_owned()), | ||
| other_root: theirs.is_none().then(|| workdir.to_owned()), | ||
| common_ancestor_root: base.is_none().then(|| workdir.to_owned()), | ||
| } | ||
| } else { | ||
| WorktreeRoots::default() | ||
| }; | ||
| Ok(roots) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| use crate::config; | ||
| use crate::config::tree::SubSectionRequirement; | ||
| use crate::config::{ | ||
| tree::{keys, Key, Merge, Section}, | ||
| Tree, | ||
| }; | ||
|
|
||
| impl Merge { | ||
| /// The `merge.renormalize` key | ||
| pub const RENORMALIZE: keys::Boolean = keys::Boolean::new_boolean("renormalize", &Tree::MERGE); | ||
| /// The `merge.default` key | ||
| pub const DEFAULT: keys::String = keys::String::new_string("default", &Tree::MERGE); | ||
| /// The `merge.<driver>.name` key. | ||
| pub const DRIVER_NAME: keys::String = keys::String::new_string("name", &config::Tree::MERGE) | ||
| .with_subsection_requirement(Some(SubSectionRequirement::Parameter("driver"))); | ||
| /// The `merge.<driver>.driver` key. | ||
| pub const DRIVER_COMMAND: keys::Program = keys::Program::new_program("driver", &config::Tree::MERGE) | ||
| .with_subsection_requirement(Some(SubSectionRequirement::Parameter("driver"))); | ||
| /// The `merge.<driver>.recursive` key. | ||
| pub const DRIVER_RECURSIVE: keys::String = keys::String::new_string("recursive", &config::Tree::MERGE) | ||
| .with_subsection_requirement(Some(SubSectionRequirement::Parameter("driver"))); | ||
| /// The `merge.conflictStyle` key. | ||
| #[cfg(feature = "blob-merge")] | ||
| pub const CONFLICT_STYLE: ConflictStyle = | ||
| ConflictStyle::new_with_validate("conflictStyle", &config::Tree::MERGE, validate::ConflictStyle); | ||
| } | ||
|
|
||
| impl Section for Merge { | ||
| fn name(&self) -> &str { | ||
| "merge" | ||
| } | ||
|
|
||
| fn keys(&self) -> &[&dyn Key] { | ||
| &[ | ||
| &Self::RENORMALIZE, | ||
| &Self::DEFAULT, | ||
| &Self::DRIVER_NAME, | ||
| &Self::DRIVER_COMMAND, | ||
| &Self::DRIVER_RECURSIVE, | ||
| ] | ||
| } | ||
| } | ||
|
|
||
| /// The `merge.conflictStyle` key. | ||
| #[cfg(feature = "blob-merge")] | ||
| pub type ConflictStyle = keys::Any<validate::ConflictStyle>; | ||
|
|
||
| #[cfg(feature = "blob-merge")] | ||
| mod conflict_style { | ||
| use crate::{bstr::BStr, config, config::tree::sections::merge::ConflictStyle}; | ||
| use gix_merge::blob::builtin_driver::text; | ||
| use std::borrow::Cow; | ||
|
|
||
| impl ConflictStyle { | ||
| /// Derive the diff algorithm identified by `name`, case-insensitively. | ||
| pub fn try_into_conflict_style( | ||
| &'static self, | ||
| name: Cow<'_, BStr>, | ||
| ) -> Result<text::ConflictStyle, config::key::GenericErrorWithValue> { | ||
| let style = if name.as_ref() == "merge" { | ||
| text::ConflictStyle::Merge | ||
| } else if name.as_ref() == "diff3" { | ||
| text::ConflictStyle::Diff3 | ||
| } else if name.as_ref() == "zdiff3" { | ||
| text::ConflictStyle::ZealousDiff3 | ||
| } else { | ||
| return Err(config::key::GenericErrorWithValue::from_value(self, name.into_owned())); | ||
| }; | ||
| Ok(style) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[cfg(feature = "blob-merge")] | ||
| mod validate { | ||
| use crate::{ | ||
| bstr::BStr, | ||
| config::tree::{keys, Merge}, | ||
| }; | ||
|
|
||
| pub struct ConflictStyle; | ||
| impl keys::Validate for ConflictStyle { | ||
| fn validate(&self, value: &BStr) -> Result<(), Box<dyn std::error::Error + Send + Sync + 'static>> { | ||
| Merge::CONFLICT_STYLE.try_into_conflict_style(value.into())?; | ||
| Ok(()) | ||
| } | ||
| } | ||
| } |
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