mirror of https://github.com/aptly-dev/aptly
99 lines
4.0 KiB
Markdown
99 lines
4.0 KiB
Markdown
## Downloaded packages
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### SHA-256
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For each uploaded _Debian_ package a [SHA-256](https://en.wikipedia.org/wiki/SHA-2) checksum is computed.
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This checksum is used to create a file tree where each package will reside, with following hierarchy.
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#### Directory and sub-directories structure
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- 1st and 2nd characters of SHA-256 checksum as sub-directory of **rootDir**/pool directory.
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- 3rd and 4th characters of SHA-256 checksum as sub-directory of the former
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ex:
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sha256sum **476e**0cdac6bc757dd2b78bacc1325323b09c45ecb41d4562deec2a1c7c148405 my-package_1.2.3_all.deb
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```bash
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${rootDir}/pool # rootDir defined in aptly.conf
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└── 47
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└── 6e
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```
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#### Filename
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The following items are concatenated to form the filename under which package is stored.
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- 5th to the 31st characters of SHA-256 checksum
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- "\_" (undescore)
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- filename of uploaded _Debian_ as defined in [Debian package file names](https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_debian_package_file_names)
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ex:
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sha256sum 476e**0cdac6bc757dd2b78bacc13253**23b09c45ecb41d4562deec2a1c7c148405 **my-package_1.2.3_all.deb**
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```
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0cdac6bc757dd2b78bacc13253_my-package_1.2.3_all.deb
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```
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### MD5
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For each uploaded _Debian_ package a [MD5](https://en.wikipedia.org/wiki/MD5) checksum is computed.
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This checksum is used to create a file tree where each package will reside, with following hierarchy
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**Note:** [MD5](https://en.wikipedia.org/wiki/MD5) is only legacy layout. Its support is limited to
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'read' files from the pool, it never puts files this way for new package files.
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#### Directory and sub-directories structure
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- 1st and 2nd characters of MD5 checksum as sub-directory name of **rootDir**/pool directory
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- 3rd and 4th characters of MD5 chacksum as sub-directory name of the former
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ex:
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md5sum **feea**3c0c3e823615bf2d417b052a96b4 my-package_1.2.3_all.deb
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```bash
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${rootDir}/pool # rootDir defined in aptly.conf
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└── fe
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└── ea
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```
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#### Filename
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Uploaded _Debian_ is stored as-is and not renamed.
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### Example
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```bash
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${rootDir}/pool # rootDir defined in aptly.conf
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├── 00
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│ ├── 25
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│ │ └── yet_another_package-0.6.0_all.deb
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│ ├── 60
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│ ├── 97
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│ │ └── 80ced73165f92fea490f2561a7c4_my-package_0.0.1_all.deb
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│ ├── 6e
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│ │ └── 0cdac6bc757dd2b78bacc13253_my-package_1.2.3_all.deb # sha256sum 476e0cdac6bc757dd2b78bacc1325323b09c45ecb41d4562deec2a1c7c148405
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│ └── db
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│ └── yet_another_package-0.5.8_all.deb # md5sum 00db7ada61aa28a6931267f1714cbb15
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...
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├── 2a
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│ ├── 10
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│ │ └── yet_another_package-0.5.9_all.deb
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│ ├── 64
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│ │ └── 80ced73165f92fea490f2561a7c4_my-other-package_2.3.2_amd64.deb
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│ ├── 4c
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│ ├── 5c
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│ │ └── yet_another_package-0.6.1_all.deb
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│ ├── 77
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│ ├── b5
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│ │ └── 4b2eb349236cf5c4af7eca68a43b_my-package_0.2.0_amd64.deb
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...
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└── ff
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├── 4c
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├── 5a
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│ └── 8868dd8661bbe25c51bdd9b2d25c_my-package_0.2.0_amd64.deb
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└── dc
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```
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