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Add/spack export to generate standard format of packages and metadata #1

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@vsoch vsoch commented Dec 12, 2020

Hey @tgamblin! This pull request is primarily for discussion, and let me know if I should be pinging others that are interested as well. The goal is to make it easy to export a json file with:

  • compilers
  • package specs
  • metadata

So I added a new schema, export.py, that primarily uses other schemas (spec.py and compilers.py) to create a simple data structure with those three entities. This structure is then exposed via the export.py command. Some questions that I had:

spack export

will print this in the console, a derivative of the example provided (that still needs a bit of work, but it's a start!)

JSON export example
$ bin/spack export
{
 "_meta": {
  "spack-version": "0.16.0"
 },
 "specs": [
  {
   "name": "autoconf",
   "hash": "dxo5g7zayxrtg4wex6fqcixgmfywuiie",
   "version": "2.69",
   "arch": {
    "platform": "linux",
    "platform_os": "ubuntu18.04",
    "target": {
     "name": "skylake",
     "vendor": "GenuineIntel",
     "features": [
      "adx",
      "aes",
      "avx",
      "avx2",
      "bmi1",
      "bmi2",
      "clflushopt",
      "f16c",
      "fma",
      "mmx",
      "movbe",
      "pclmulqdq",
      "popcnt",
      "rdrand",
      "rdseed",
      "sse",
      "sse2",
      "sse4_1",
      "sse4_2",
      "ssse3",
      "xsavec",
      "xsaveopt"
     ],
     "generation": 0,
     "parents": [
      "broadwell"
     ]
    }
   },
   "compiler": {
    "name": "gcc",
    "version": "7.5.0"
   },
   "namespace": "builtin",
   "parameters": {
    "cflags": [],
    "cppflags": [],
    "cxxflags": [],
    "fflags": [],
    "ldflags": [],
    "ldlibs": []
   },
   "dependencies": {
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    }
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      "movbe",
      "pclmulqdq",
      "popcnt",
      "rdrand",
      "rdseed",
      "sse",
      "sse2",
      "sse4_1",
      "sse4_2",
      "ssse3",
      "xsavec",
      "xsaveopt"
     ],
     "generation": 0,
     "parents": [
      "broadwell"
     ]
    }
   },
   "compiler": {
    "name": "gcc",
    "version": "7.5.0"
   },
   "namespace": "builtin",
   "parameters": {
    "column_metadata": true,
    "fts": true,
    "functions": false,
    "rtree": false,
    "cflags": [],
    "cppflags": [],
    "cxxflags": [],
    "fflags": [],
    "ldflags": [],
    "ldlibs": []
   },
   "dependencies": {
    "readline": {
     "hash": "l3bzhbkekxg3ggeov4cjh3gaj5jdplet",
     "type": [
      "build",
      "link"
     ]
    },
    "zlib": {
     "hash": "fz2bs562jhc2spgubs3fvq25g3qymz6x",
     "type": [
      "build",
      "link"
     ]
    }
   }
  },
  {
   "name": "util-macros",
   "hash": "se2a2e74oyusj2r4esgcb7pr3qhh45ef",
   "version": "1.19.1",
   "arch": {
    "platform": "linux",
    "platform_os": "ubuntu18.04",
    "target": {
     "name": "skylake",
     "vendor": "GenuineIntel",
     "features": [
      "adx",
      "aes",
      "avx",
      "avx2",
      "bmi1",
      "bmi2",
      "clflushopt",
      "f16c",
      "fma",
      "mmx",
      "movbe",
      "pclmulqdq",
      "popcnt",
      "rdrand",
      "rdseed",
      "sse",
      "sse2",
      "sse4_1",
      "sse4_2",
      "ssse3",
      "xsavec",
      "xsaveopt"
     ],
     "generation": 0,
     "parents": [
      "broadwell"
     ]
    }
   },
   "compiler": {
    "name": "gcc",
    "version": "7.5.0"
   },
   "namespace": "builtin",
   "parameters": {
    "cflags": [],
    "cppflags": [],
    "cxxflags": [],
    "fflags": [],
    "ldflags": [],
    "ldlibs": []
   }
  }
 ],
 "compilers": [
  {
   "spec": "gcc@7.5.0",
   "paths": {
    "cc": "/usr/bin/gcc",
    "cxx": "/usr/bin/g++",
    "f77": null,
    "fc": null
   },
   "flags": {},
   "operating_system": "ubuntu18.04",
   "target": "x86_64",
   "modules": [],
   "environment": {},
   "extra_rpaths": []
  }
 ]
}
YAML example

Not implemented yet, but just to show.

---
_meta:
  spack-version: 0.16.0
specs:
- name: autoconf
  hash: dxo5g7zayxrtg4wex6fqcixgmfywuiie
  version: '2.69'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    m4:
      hash: erqdtam4yfnuwhwzmk2n5u4wbwcb5wkv
      type:
      - build
      - run
    perl:
      hash: 3fjpn4jzos5iut7cvjqbngo3imtxbosn
      type:
      - build
      - run
- name: m4
  hash: erqdtam4yfnuwhwzmk2n5u4wbwcb5wkv
  version: 1.4.18
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    patches:
    - 3877ab548f88597ab2327a2230ee048d2d07ace1062efe81fc92e91b7f39cd00
    - fc9b61654a3ba1a8d6cd78ce087e7c96366c290bc8d2c299f09828d793b853c8
    sigsegv: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  patches:
  - 3877ab548f88597ab2327a2230ee048d2d07ace1062efe81fc92e91b7f39cd00
  - fc9b61654a3ba1a8d6cd78ce087e7c96366c290bc8d2c299f09828d793b853c8
  dependencies:
    libsigsegv:
      hash: aymspclv5aqdkwqkxvlxxerrimgsjzd2
      type:
      - build
      - link
- name: libsigsegv
  hash: aymspclv5aqdkwqkxvlxxerrimgsjzd2
  version: '2.12'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: perl
  hash: 3fjpn4jzos5iut7cvjqbngo3imtxbosn
  version: 5.32.0
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cpanm: true
    shared: true
    threads: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    berkeley-db:
      hash: xrzi3qjouewrl7vgf7hfl42xcwcptryi
      type:
      - build
      - link
    gdbm:
      hash: a3onxbk63mvypoeocklamcj3q7jcyfyj
      type:
      - build
      - link
- name: berkeley-db
  hash: xrzi3qjouewrl7vgf7hfl42xcwcptryi
  version: 18.1.40
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: gdbm
  hash: a3onxbk63mvypoeocklamcj3q7jcyfyj
  version: 1.18.1
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    readline:
      hash: l3bzhbkekxg3ggeov4cjh3gaj5jdplet
      type:
      - build
      - link
- name: readline
  hash: l3bzhbkekxg3ggeov4cjh3gaj5jdplet
  version: '8.0'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    ncurses:
      hash: nlvmejfn4n7jkkot2nglflrtwpu56o27
      type:
      - build
      - link
- name: ncurses
  hash: nlvmejfn4n7jkkot2nglflrtwpu56o27
  version: '6.2'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    symlinks: false
    termlib: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: automake
  hash: 6nzwwofj7xewjf4pfiudu5mvksmhi6o2
  version: 1.16.2
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
      - bmi2
      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    perl:
      hash: 3fjpn4jzos5iut7cvjqbngo3imtxbosn
      type:
      - build
      - run
- name: bzip2
  hash: yjwcvti7ehjkvqcu67rdzymdawi6nruk
  version: 1.0.8
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
      - avx2
      - bmi1
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      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
      - sse2
      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    shared: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: diffutils
  hash: 624pjac4maorpjwa4kl7ydasl5jy7wgy
  version: '3.7'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
      - avx
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      - bmi1
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      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
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      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    libiconv:
      hash: 7ddqjmff6zg3zer572yuqnvzk2ebrkfc
      type:
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      - link
- name: libiconv
  hash: 7ddqjmff6zg3zer572yuqnvzk2ebrkfc
  version: '1.16'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
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      - avx
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      - clflushopt
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      generation: 0
      parents:
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  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: expat
  hash: ed6encylyziniuvvqtbsunmztze3s5s2
  version: 2.2.10
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
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      vendor: GenuineIntel
      features:
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      - xsavec
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      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    libbsd: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    libbsd:
      hash: gvadyz7pk4n6zmbn2kepfwjgdfc6yr2x
      type:
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      - link
- name: libbsd
  hash: gvadyz7pk4n6zmbn2kepfwjgdfc6yr2x
  version: 0.10.0
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
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      - avx
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      generation: 0
      parents:
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  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: gettext
  hash: xkjvfgvpeoxcdckiha765ntqppsftzmg
  version: '0.21'
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
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      - xsavec
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      generation: 0
      parents:
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  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    bzip2: true
    curses: true
    git: true
    libunistring: false
    libxml2: true
    tar: true
    xz: true
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    bzip2:
      hash: yjwcvti7ehjkvqcu67rdzymdawi6nruk
      type:
      - build
      - link
    libiconv:
      hash: 7ddqjmff6zg3zer572yuqnvzk2ebrkfc
      type:
      - build
      - link
    libxml2:
      hash: hxsopl6whqtirosqzu4blc3urkyeryhk
      type:
      - build
      - link
    ncurses:
      hash: nlvmejfn4n7jkkot2nglflrtwpu56o27
      type:
      - build
      - link
    tar:
      hash: 2gudv7nnasphqr6zwrvoulakgqkfnbha
      type:
      - build
      - link
    xz:
      hash: yjkcmisqyqjpfqwa4cvll5qehkr25aog
      type:
      - build
      - link
      - run
- name: libxml2
  hash: hxsopl6whqtirosqzu4blc3urkyeryhk
  version: 2.9.10
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
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      - avx
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      - clflushopt
      - f16c
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      - movbe
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      - rdrand
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      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    python: false
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
  dependencies:
    libiconv:
      hash: 7ddqjmff6zg3zer572yuqnvzk2ebrkfc
      type:
      - build
      - link
    xz:
      hash: yjkcmisqyqjpfqwa4cvll5qehkr25aog
      type:
      - build
      - link
    zlib:
      hash: fz2bs562jhc2spgubs3fvq25g3qymz6x
      type:
      - build
      - link
- name: xz
  hash: yjkcmisqyqjpfqwa4cvll5qehkr25aog
  version: 5.2.5
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
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      - avx
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      - bmi1
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      - clflushopt
      - f16c
      - fma
      - mmx
      - movbe
      - pclmulqdq
      - popcnt
      - rdrand
      - rdseed
      - sse
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      - sse4_1
      - sse4_2
      - ssse3
      - xsavec
      - xsaveopt
      generation: 0
      parents:
      - broadwell
  compiler:
    name: gcc
    version: 7.5.0
  namespace: builtin
  parameters:
    pic: false
    cflags: []
    cppflags: []
    cxxflags: []
    fflags: []
    ldflags: []
    ldlibs: []
- name: zlib
  hash: fz2bs562jhc2spgubs3fvq25g3qymz6x
  version: 1.2.11
  arch:
    platform: linux
    platform_os: ubuntu18.04
    target:
      name: skylake
      vendor: GenuineIntel
      features:
      - adx
      - aes
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  hash: zmp24y7n3vlc6nf5fkgjhnkskcqgkxti
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  compiler:
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  compiler:
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    version: 7.5.0
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compilers:
- spec: gcc@7.5.0
  paths:
    cc: "/usr/bin/gcc"
    cxx: "/usr/bin/g++"
    f77:
    fc:
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  extra_rpaths: []

Questions

  1. Is this even the right approach? My thinking was that we would want to preserve (as much as possible) the current schemas that spack has. For this reason, although the example that I was deriving this from was different (e.g., it had an arch section with os instead of just operating_system), using executables instead of paths, and an additional "prefix" section). for this first go I tried to maintain what is currently in spack as much as possible. Also, it looks like the example has null or empty values removed (which I haven't done). Should we do this, and if yes, on the level of the export function, or at the level of the spec/compiler?
  2. The example provided an rpm attribute that looks like the package file, and I didn't add this yet. We can either go with something like source with nested values, or do the same as the example, a flat rpm (and other sources) at the top level. e.g., {"source": {"name": "RPM", "filename": "fftw-2.1.5.9-3.x86_64.rpm"}}
  3. Once the format is reasonable, what detail work is needed? (e.g., you mentioned resolving externals). I was also thinking that if the centers producing the examples have particular tricks for generating the files, maybe we should ask them how they do it?

TODO

  1. The current argument parser is taken from find, and I expect that we would want to customize it to provide some additional arguments (e.g., saving to file). We should discuss what we want the argparser here to export.
  2. I didn't quite look into the functionality of spack.environment, which I saw scattered around command scripts. Do we need that here?
  3. Eventually, the metadata section should allow for custom metadata. I currently just put the spack version. But perhaps we should also add a date when generated?
  4. Also in terms of customization, it should be easy for a center to add some custom entry derived from a script or file.
  5. Eventually we will want to add something about ABI compatability,
  6. I don't have docs yet, but I can put these together when it's more developed
  7. I also don't actually use the schema to validate the data structure, we can add that in after.

And thinking about this, if this file can describe all packages and compilers and some metadata, it could be used as input for not just spack/tools, but also for cool visualizations! Apologies in advance for any or all oversights that I've had in putting this together, I'm fairly new to this part of spack so I'm pretty happy that I at least found what I was looking for 😆

Signed-off-by: vsoch <vsochat@stanford.edu>
Signed-off-by: vsoch <vsochat@stanford.edu>
Signed-off-by: vsoch <vsochat@stanford.edu>
@vsoch
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vsoch commented Dec 15, 2020

PR updated to:

  • add prefix to the spec, the self.prefix attribute of the spec
  • remove compilers listing from the export schema
  • do not include empty parameter entries (if this breaks something that already exists we can create a boolean to turn on / off)

A new export looks like this:

Json export of packages, export schema
{
 "_meta": {
  "spack-version": "0.16.0"
 },
 "specs": [
  {
   "name": "autoconf",
   "hash": "dxo5g7zayxrtg4wex6fqcixgmfywuiie",
   "version": "2.69",
   "arch": {
    "platform": "linux",
    "platform_os": "ubuntu18.04",
    "target": {
     "name": "skylake",
     "vendor": "GenuineIntel",
     "features": [
      "adx",
      "aes",
      "avx",
      "avx2",
      "bmi1",
      "bmi2",
      "clflushopt",
      "f16c",
      "fma",
      "mmx",
      "movbe",
      "pclmulqdq",
      "popcnt",
      "rdrand",
      "rdseed",
      "sse",
      "sse2",
      "sse4_1",
      "sse4_2",
      "ssse3",
      "xsavec",
      "xsaveopt"
     ],
     "generation": 0,
     "parents": [
      "broadwell"
     ]
    }
   },
   "compiler": {
    "name": "gcc",
    "version": "7.5.0"
   },
   "namespace": "builtin",
   "prefix": "/home/vanessa/Desktop/Code/spack/opt/spack/linux-ubuntu18.04-skylake/gcc-7.5.0/autoconf-2.69-dxo5g7zayxrtg4wex6fqcixgmfywuiie",
   "dependencies": {
    "m4": {
     "hash": "erqdtam4yfnuwhwzmk2n5u4wbwcb5wkv",
     "type": [
      "build",
      "run"
     ]
    },
    "perl": {
     "hash": "3fjpn4jzos5iut7cvjqbngo3imtxbosn",
     "type": [
      "build",
      "run"
     ]
    }
   }
  },
  {
   "name": "m4",
   "hash": "erqdtam4yfnuwhwzmk2n5u4wbwcb5wkv",
   "version": "1.4.18",
   "arch": {
    "platform": "linux",
    "platform_os": "ubuntu18.04",
    "target": {
     "name": "skylake",
     "vendor": "GenuineIntel",
     "features": [
      "adx",
      "aes",
      "avx",
      "avx2",
      "bmi1",
      "bmi2",
      "clflushopt",
      "f16c",
      "fma",
      "mmx",
      "movbe",
      "pclmulqdq",
      "popcnt",
      "rdrand",
      "rdseed",
      "sse",
      "sse2",
      "sse4_1",
      "sse4_2",
      "ssse3",
      "xsavec",
      "xsaveopt"
     ],
     "generation": 0,
     "parents": [
      "broadwell"
     ]
    }
   },
   "compiler": {
    "name": "gcc",
    "version": "7.5.0"
   },
   "namespace": "builtin",
   "parameters": {
    "patches": [
     "3877ab548f88597ab2327a2230ee048d2d07ace1062efe81fc92e91b7f39cd00",
     "fc9b61654a3ba1a8d6cd78ce087e7c96366c290bc8d2c299f09828d793b853c8"
    ],
    "sigsegv": true
   },
   "prefix": "/home/vanessa/Desktop/Code/spack/opt/spack/linux-ubuntu18.04-skylake/gcc-7.5.0/m4-1.4.18-erqdtam4yfnuwhwzmk2n5u4wbwcb5wkv",
   "patches": [
    "3877ab548f88597ab2327a2230ee048d2d07ace1062efe81fc92e91b7f39cd00",
    "fc9b61654a3ba1a8d6cd78ce087e7c96366c290bc8d2c299f09828d793b853c8"
   ],
   "dependencies": {
    "libsigsegv": {
     "hash": "aymspclv5aqdkwqkxvlxxerrimgsjzd2",
     "type": [
      "build",
      "link"
     ]
    }
   }
  },
  {
   "name": "libsigsegv",
   "hash": "aymspclv5aqdkwqkxvlxxerrimgsjzd2",
   "version": "2.12",
   "arch": {
    "platform": "linux",
    "platform_os": "ubuntu18.04",
    "target": {
     "name": "skylake",
     "vendor": "GenuineIntel",
     "features": [
      "adx",
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}

@vsoch vsoch changed the title Add/spack export Add/spack export to generate standard format of packages and metadata Dec 21, 2020
vsoch pushed a commit that referenced this pull request Jun 1, 2021
Before:

```
$ hyperfine '~/spack/bin/spack -e . build-env rocfft'
Benchmark #1: ~/spack/bin/spack -e . build-env rocfft
  Time (mean ± σ):      1.593 s ±  0.016 s    [User: 1.468 s, System: 0.126 s]
  Range (min … max):    1.575 s …  1.628 s    10 runs
```

After:

```
$ hyperfine '~/spack/bin/spack -e . build-env rocfft'
Benchmark #1: ~/spack/bin/spack -e . build-env rocfft
  Time (mean ± σ):      1.407 s ±  0.020 s    [User: 1.280 s, System: 0.127 s]
  Range (min … max):    1.393 s …  1.455 s    10 runs
```
@vsoch
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vsoch commented Jul 10, 2021

@spackbot do you do anything?

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vsoch commented Jul 19, 2021

@spackbot hello!

@spack-bot-develop
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Hello!

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vsoch commented Jul 19, 2021

@spackbot commands

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You can interact with me in many ways!

  • @spackbot hello: say hello and get a friendly response back!
  • @spackbot help or @spackbot commands: see this message
  • @spackbot run pipeline or @spackbot re-run pipeline: to request a new run of the GitLab CI pipeline

I'll also help to label your pull request and assign reviewers!
If you need help or see there might be an issue with me, open an issue here

@vsoch
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vsoch commented Jul 19, 2021

@spackbot help!

@spack-bot-develop
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You can interact with me in many ways!

  • @spackbot hello: say hello and get a friendly response back!
  • @spackbot help or @spackbot commands: see this message
  • @spackbot run pipeline or @spackbot re-run pipeline: to request a new run of the GitLab CI pipeline
  • @spackbot fix style if you have write and would like me to run spack style fix for you.

I'll also help to label your pull request and assign reviewers!
If you need help or see there might be an issue with me, open an issue here

vsoch pushed a commit that referenced this pull request Sep 17, 2021
Git 2.24 introduced a feature flag for repositories with many files, see:
https://github.blog/2019-11-03-highlights-from-git-2-24/#feature-macros

Since Spack's Git repository contains roughly 8,500 files, it can be
worthwhile to enable this, especially on slow file systems such as NFS:
```
$ hyperfine --warmup 3 'cd spack-default; git status' 'cd spack-manyfiles; git status'
Benchmark #1: cd spack-default; git status
  Time (mean ± σ):      3.388 s ±  0.095 s    [User: 256.2 ms, System: 625.8 ms]
  Range (min … max):    3.168 s …  3.535 s    10 runs

Benchmark #2: cd spack-manyfiles; git status
  Time (mean ± σ):     168.7 ms ±  10.9 ms    [User: 98.6 ms, System: 126.1 ms]
  Range (min … max):   144.8 ms … 188.0 ms    19 runs

Summary
  'cd spack-manyfiles; git status' ran
   20.09 ± 1.42 times faster than 'cd spack-default; git status'
```
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