{"id":18343273,"url":"https://github.com/dav-m85/hashsnap","last_synced_at":"2025-10-11T19:18:18.147Z","repository":{"id":151333929,"uuid":"342715036","full_name":"dav-m85/hashsnap","owner":"dav-m85","description":"Remove files that have duplicates elsewhere.","archived":false,"fork":false,"pushed_at":"2023-04-17T20:08:08.000Z","size":235,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-04-09T21:49:34.110Z","etag":null,"topics":["duplicates","hash","snapshot"],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/dav-m85.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2021-02-26T22:17:25.000Z","updated_at":"2022-09-13T21:37:24.000Z","dependencies_parsed_at":null,"dependency_job_id":"81455fbd-c07a-49c1-b5ed-31363d3d1365","html_url":"https://github.com/dav-m85/hashsnap","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dav-m85%2Fhashsnap","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dav-m85%2Fhashsnap/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dav-m85%2Fhashsnap/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/dav-m85%2Fhashsnap/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/dav-m85","download_url":"https://codeload.github.com/dav-m85/hashsnap/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248119406,"owners_count":21050754,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["duplicates","hash","snapshot"],"created_at":"2024-11-05T20:35:35.610Z","updated_at":"2025-10-11T19:18:13.097Z","avatar_url":"https://github.com/dav-m85.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003e Work in progress\n\n# hsnap\nRemove files (\"trim\") that have duplicates elsewhere.\n\nBy using space-savvy hash snapshots, *hsnap* can perform deduplication across\nmultiple filesystems without having them all accessed at the same time.\n\nIn a nutshell:\n- Run ```hsnap create``` on some NAS\n- Copy the generated ```.hsnap``` file on your localhost, rename it ```nas.hsnap```\n- Run ```hsnap trim nas.hsnap -delete``` to remove all local files that have duplicates\non the NAS\n\nGenerated .hsnap files are small: 6GB of results in a ~360k hsnap file...\n\n... and fast to generate: on a quadcore+SSD, it takes around 2min to hash said 6GB.\n\nA Synology NAS hashes 100GB within 26min.\n\nDuplication finding uses file size and SHA-1 hashing comparison, so don't expect security, \nbut fair level of guarantee that only duplicates are found.\n\n## Usage\n    \n    hsnap help\n    hsnap \u003ccmd\u003e -help\n\nRunning on a NAS without screen/tmux and forgetting about it:\n\n    nohup hsnap... \u003c/dev/null \u003ehsnap.log 2\u003e\u00261 \u0026\n\nExploring easily an info result:\n\n    hsnap trim nas.hsnap | less -R\n\n## TODO\n- be able to resume a hashing, by leveraging file existence,\n- test extensively,\n- dedup without trimming (perhaps, as fdupes does it already quite well),\n- cleanup the code.\n- Buffer .hsnap while creating in memory...\n\n## Inspiration\n- [mathieuancelin/duplicates](https://github.com/mathieuancelin/duplicates/blob/master/duplicates.go)\n- [SeeSpotRun gist](https://gist.github.com/SeeSpotRun/456b88424841d7ae735f)\n\nhttps://goreleaser.com/\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdav-m85%2Fhashsnap","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdav-m85%2Fhashsnap","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdav-m85%2Fhashsnap/lists"}