sist2/README.md

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# sist2
sist2 (Simple incremental search tool)
*Warning: sist2 is in early development*
![search panel](docs/sist2.png)
## Features
* Fast, low memory usage, multi-threaded
* Mobile-friendly Web interface
* Portable (all its features are packaged in a single executable)
* Extracts text and metadata from common file types \*
* Generates thumbnails \*
* Incremental scanning
* Manual tagging from the UI and automatic tagging based on file attributes via [user scripts](docs/scripting.md)
* Recursive scan inside archive files \*\*
* OCR support with tesseract \*\*\*
* Stats page & disk utilisation visualization
\* See [format support](#format-support)
\*\* See [Archive files](#archive-files)
\*\*\* See [OCR](#ocr)
![stats](docs/stats.png)
## Getting Started
1. Have an Elasticsearch (>= 6.8.X, ideally >=7.14.0) instance running
1. Download [from official website](https://www.elastic.co/downloads/elasticsearch)
1. *(or)* Run using docker:
```bash
docker run -d -p 9200:9200 -e "discovery.type=single-node" elasticsearch:7.14.0
```
1. *(or)* Run using docker-compose:
```yaml
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.14.0
environment:
- discovery.type=single-node
- "ES_JAVA_OPTS=-Xms1G -Xmx2G"
```
1. Download sist2 executable
1. Download the [latest sist2 release](https://github.com/simon987/sist2/releases).
Select the file corresponding to your CPU architecture and mark the binary as executable with `chmod +x` *
2. *(or)* Download a [development snapshot](https://files.simon987.net/.gate/sist2/simon987_sist2/) *(Not
recommended!)*
3. *(or)* `docker pull simon987/sist2:2.12.1-x64-linux`
1. See [Usage guide](docs/USAGE.md)
\* *Windows users*: **sist2** runs under [WSL](https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux)
## Example usage
See [Usage guide](docs/USAGE.md) for more details
1. Scan a directory: `sist2 scan ~/Documents -o ./docs_idx`
1. Push index to Elasticsearch: `sist2 index ./docs_idx`
1. Start web interface: `sist2 web ./docs_idx`
## Format support
| File type | Library | Content | Thumbnail | Metadata |
|:--------------------------------------------------------------------------|:-----------------------------------------------------------------------------|:---------|:------------|:---------------------------------------------------------------------------------------------------------------------------------------|
| pdf,xps,fb2,epub | MuPDF | text+ocr | yes | author, title |
| cbz,cbr | [libscan](https://github.com/simon987/sist2/tree/master/third-party/libscan) | - | yes | - |
| `audio/*` | ffmpeg | - | yes | ID3 tags |
| `video/*` | ffmpeg | - | yes | title, comment, artist |
| `image/*` | ffmpeg | ocr | yes | [Common EXIF tags](https://github.com/simon987/sist2/blob/efdde2734eca9b14a54f84568863b7ffd59bdba3/src/parsing/media.c#L190), GPS tags |
| raw, rw2, dng, cr2, crw, dcr, k25, kdc, mrw, pef, xf3, arw, sr2, srf, erf | LibRaw | no | yes | Common EXIF tags, GPS tags |
| ttf,ttc,cff,woff,fnt,otf | Freetype2 | - | yes, `bmp` | Name & style |
| `text/plain` | [libscan](https://github.com/simon987/sist2/tree/master/third-party/libscan) | yes | no | - |
| html, xml | [libscan](https://github.com/simon987/sist2/tree/master/third-party/libscan) | yes | no | - |
| tar, zip, rar, 7z, ar ... | Libarchive | yes\* | - | no |
| docx, xlsx, pptx | [libscan](https://github.com/simon987/sist2/tree/master/third-party/libscan) | yes | if embedded | creator, modified_by, title |
| doc (MS Word 97-2003) | antiword | yes | no | author, title |
| mobi, azw, azw3 | libmobi | yes | no | author, title |
| wpd (WordPerfect) | libwpd | yes | no | *planned* |
| json, jsonl, ndjson | [libscan](https://github.com/simon987/sist2/tree/master/third-party/libscan) | yes | - | - |
\* *See [Archive files](#archive-files)*
### Archive files
**sist2** will scan files stored into archive files (zip, tar, 7z...) as if they were directly in the file system.
Recursive (archives inside archives)
scan is also supported.
**Limitations**:
* Support for parsing media files with formats that require *seek* (e.g. `.gif`, `.mp4` w/ fragmented metadata etc.)
is limitted (see `--mem-buffer` option)
* Archive files are scanned sequentially, by a single thread. On systems where
**sist2** is not I/O bound, scans might be faster when larger archives are split into smaller parts.
### OCR
You can enable OCR support for ebook (pdf,xps,fb2,epub) or image file types with the
`--ocr-lang <lang>` option in combination with `--ocr-images` and/or `--ocr-ebooks`.
Download the language data files with your package manager (`apt install tesseract-ocr-eng`) or
directly [from Github](https://github.com/tesseract-ocr/tesseract/wiki/Data-Files).
The `simon987/sist2` image comes with common languages
(hin, jpn, eng, fra, rus, spa) pre-installed.
You can use the `+` separator to specify multiple languages. The language
name must be identical to the `*.traineddata` file installed on your system
(use `chi_sim` rather than `chi-sim`).
Examples:
```bash
sist2 scan --ocr-ebooks --ocr-lang jpn ~/Books/Manga/
sist2 scan --ocr-images --ocr-lang eng ~/Images/Screenshots/
sist2 scan --ocr-ebooks --ocr-images --ocr-lang eng+chi_sim ~/Chinese-Bilingual/
```
## Build from source
You can compile **sist2** by yourself if you don't want to use the pre-compiled binaries
### With docker (recommended)
```bash
git clone --recursive https://github.com/simon987/sist2/
cd sist2
docker build . -f ./Dockerfile -t my-sist2-image
docker run --rm --entrypoint cat my-sist2-image /root/sist2 > sist2-x64-linux
```
### On a linux computer
1. Install compile-time dependencies
```bash
apt install gcc g++ python3 yasm ragel automake autotools-dev wget libtool libssl-dev curl zip unzip tar xorg-dev libglu1-mesa-dev libxcursor-dev libxml2-dev libxinerama-dev gettext nasm git
```
1. Apply vcpkg patches, as per [sist2-build](https://github.com/simon987/sist2-build) Dockerfile
1. Install vcpkg dependencies
```bash
vcpkg install curl[core,openssl]
vcpkg install lmdb cjson glib brotli libarchive[core,bzip2,libxml2,lz4,lzma,lzo] pthread tesseract libxml2 libmupdf gtest mongoose libmagic libraw jasper lcms gumbo
```
1. Build
```bash
git clone --recursive https://github.com/simon987/sist2/
cmake -DSIST_DEBUG=off -DCMAKE_TOOLCHAIN_FILE=<VCPKG_ROOT>/scripts/buildsystems/vcpkg.cmake .
make
```