feat(snapshots): Add local image diff command using odiff

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: NicoHinderling

.github/CODEOWNERS

@@ -16,6 +16,8 @@
 /src/api/data_types/snapshots.rs @getsentry/emerge-tools @getsentry/owners-sentry-cli
 /src/commands/build @getsentry/emerge-tools @getsentry/owners-sentry-cli
 /src/utils/build @getsentry/emerge-tools @getsentry/owners-sentry-cli
+/src/commands/snapshots @getsentry/emerge-tools @getsentry/owners-sentry-cli
+/src/utils/odiff @getsentry/emerge-tools @getsentry/owners-sentry-cli
 /tests/integration/build @getsentry/emerge-tools @getsentry/owners-sentry-cli
 
 # Files without codeowner protection

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Features
+
+- (snapshots) Add `snapshots diff` command for locally comparing directories of PNG snapshot images using odiff ([#3306](https://github.com/getsentry/sentry-cli/pull/3306))
+
 ### Fixes
 
 - Improve error message when organization slug is missing from config ([#3311](https://github.com/getsentry/sentry-cli/pull/3311))

src/commands/build/mod.rs

@@ -4,13 +4,11 @@ use clap::{ArgMatches, Command};
 use crate::utils::args::ArgExt as _;
 
 pub mod download;
-pub mod snapshots;
 pub mod upload;
 
 macro_rules! each_subcommand {
     ($mac:ident) => {
         $mac!(download);
-        $mac!(snapshots);
         $mac!(upload);
     };
 }
@@ -31,6 +29,11 @@ pub fn make_command(mut command: Command) -> Command {
         .org_arg()
         .project_arg(true);
     each_subcommand!(add_subcommand);
+    command = command.subcommand(
+        crate::commands::snapshots::upload::make_command(Command::new("snapshots"))
+            .hide(true)
+            .about("[DEPRECATED] Use `sentry-cli snapshots upload` instead."),
+    );
     command
 }
 
@@ -45,5 +48,12 @@ pub fn execute(matches: &ArgMatches) -> Result<()> {
         }};
     }
     each_subcommand!(execute_subcommand);
+    if let Some(sub_matches) = matches.subcommand_matches("snapshots") {
+        eprintln!(
+            "WARNING: `sentry-cli build snapshots` is deprecated. \
+             Use `sentry-cli snapshots upload` instead."
+        );
+        return crate::commands::snapshots::upload::execute(sub_matches);
+    }
     unreachable!();
 }

src/commands/mod.rs

@@ -40,6 +40,7 @@ mod releases;
 mod repos;
 mod send_envelope;
 mod send_event;
+mod snapshots;
 mod sourcemaps;
 #[cfg(not(feature = "managed"))]
 mod uninstall;
@@ -70,6 +71,7 @@ macro_rules! each_subcommand {
         $mac!(repos);
         $mac!(send_event);
         $mac!(send_envelope);
+        $mac!(snapshots);
         $mac!(sourcemaps);
         $mac!(dart_symbol_map);
         #[cfg(not(feature = "managed"))]