implement basic git-http-server
--- type: change message: |- implement basic git-http-server This isn't really part of dehub proper, but it's a useful utility that dehub projects are likely to want to use, so it's worth leaving it in, at least until it grows into its own thing. The utility starts a simple http server which serves files out of the HEAD of a specified branch. If an html file is requested, and there's a markdown version of that file, then the markdown will be compiled to html (optionally using an html template). README.md is used for index.html, if available. change_hash: AAonhlHUltpS+x8w8HHZRQb8e+RHJZpjoDtN2JTVGFBq credentials: - type: pgp_signature pub_key_id: 95C46FA6A41148AC body: iQIzBAABAgAdFiEEJ6tQKp6olvZKJ0lwlcRvpqQRSKwFAl59ZC0ACgkQlcRvpqQRSKxWjQ/+P8CeaBipcM2CWYU2rJgUxNaHiFwpWNcKfJCdp0ZoypnBww4NyHYSM1578NoGukq2l1stSqqK6oWvN1SbYUd+v1YVmIRhCMbMthPPx1f6kPzStDichqYiPkAaIfIw0PUXpY24fkbHhe0tXC+UApEfgLvgEovHVhBjzbgsPhoMACG8Bgfl8mdwqmkXzGuHxxjpZnZLvL3B3q6nCfpGxUYpdQX5hYucV3+vv2obLnYNpPyaYwdLFcQF7a9xgin5eyWNPayyQ1LPDbt3V9ez0mAtCdqHm3KY3fhqz0YR0bU1rVY9eEMSeNaK8fPPmzDO3vlsE76G+tYuwTLaiZgIDCLy4Qm+VRsw1l35tOwybipWciLvKhCkeq1ohgKEcFZbl5Al4ZhUhj4TKN23gsKQzkt9TJlxAxSaNjkKsb4ZNxMhiKnq/THV2JfLAxCRJ+IK2hyu3wi3te8Q1baTYa9ZXxFN9m5V8r1JNJPUM7BASvCUEzWegNFfrvidCrMHzb7o5GhOETSGWkKejR7/KMn6n1/tvvrt9F2wbPYUJrPKjB8Y33b9PjLgvrQ/2nNOoj6UAeXWMv8N1oaAdjOJB4A8+/vhFTPpXlw3FPRn953LKspkHXck1ooUu1ea1rcOV+872ZVh2HsUn8qD42/IZZQ1K2+NhPaKuAtQnIQzOcZLb94lwA0= account: mediocregopher
This commit is contained in:
mediocregopher
parent
a8c7f92328
commit
2390197ae3
22
cmd/git-http-server/README.md
Normal file
22
cmd/git-http-server/README.md
Normal file
@ -0,0 +1,22 @@
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# git-http-server
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A simple http server which uses a git repo (bare or otherwise) as the underlying
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filesystem.
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* Automatically renders markdown files as html.
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* Will use README.md as the index, if available.
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* Can be set to use a specific branch.
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All configuration is done on the command-line.
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# Installation
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TODO
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# Markdown
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TODO
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# Templates
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TODO
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11
cmd/git-http-server/go.mod
Normal file
11
cmd/git-http-server/go.mod
Normal file
@ -0,0 +1,11 @@
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module dehub/cmd/git-http-server
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go 1.14
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require (
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dehub v0.0.0
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gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19
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gopkg.in/src-d/go-git.v4 v4.13.1
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)
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replace dehub => ../../
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78
cmd/git-http-server/go.sum
Normal file
78
cmd/git-http-server/go.sum
Normal file
@ -0,0 +1,78 @@
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github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
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github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
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github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
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github.com/bmatcuk/doublestar v1.2.2/go.mod h1:wiQtGV+rzVYxB7WIlirSN++5HPtPlXEo9MEoZQC/PmE=
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github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
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github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
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github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
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github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
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github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
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github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
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github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
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github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd h1:Coekwdh0v2wtGp9Gmz1Ze3eVRAWJMLokvN3QjdzCHLY=
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github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
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github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
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github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
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github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
|
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github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
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github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
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github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
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github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=
|
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github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
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github.com/russross/blackfriday v2.0.0+incompatible/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
|
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github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
|
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github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
|
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github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
|
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github.com/src-d/gcfg v1.4.0 h1:xXbNR5AlLSA315x2UO+fTSSAXCDf+Ar38/6oyGbDKQ4=
|
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github.com/src-d/gcfg v1.4.0/go.mod h1:p/UMsR43ujA89BJY9duynAwIpvqEujIH/jFlfL7jWoI=
|
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
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github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
|
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github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
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github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
|
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github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
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gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181 h1:K+bMSIx9A7mLES1rtG+qKduLIXq40DAzYHtb0XuCukA=
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gitlab.com/golang-commonmark/html v0.0.0-20191124015941-a22733972181/go.mod h1:dzYhVIwWCtzPAa4QP98wfB9+mzt33MSmM8wsKiMi2ow=
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gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82 h1:oYrL81N608MLZhma3ruL8qTM4xcpYECGut8KSxRY59g=
|
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gitlab.com/golang-commonmark/linkify v0.0.0-20191026162114-a0c2df6c8f82/go.mod h1:Gn+LZmCrhPECMD3SOKlE+BOHwhOYD9j7WT9NUtkCrC8=
|
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gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19 h1:HsZm6XaTpEgZiZqcXZkUbG6BNtSZE3XyCTfo52YBoDY=
|
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gitlab.com/golang-commonmark/markdown v0.0.0-20191127184510-91b5b3c99c19/go.mod h1:CRIzp0wh6PvKEAeEOtp9wEpNKJJ1VFTNfHO4+ToRgVA=
|
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gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84 h1:qqjvoVXdWIcZCLPMlzgA7P9FZWdPGPvP/l3ef8GzV6o=
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gitlab.com/golang-commonmark/mdurl v0.0.0-20191124015652-932350d1cb84/go.mod h1:IJZ+fdMvbW2qW6htJx7sLJ04FEs4Ldl/MDsJtMKywfw=
|
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gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f h1:Wku8eEdeJqIOFHtrfkYUByc4bCaTeA6fL0UJgfEiFMI=
|
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gitlab.com/golang-commonmark/puny v0.0.0-20191124015043-9f83538fa04f/go.mod h1:Tiuhl+njh/JIg0uS/sOJVYi0x2HEa5rc1OAaVsb5tAs=
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gitlab.com/opennota/wd v0.0.0-20180912061657-c5d65f63c638/go.mod h1:EGRJaqe2eO9XGmFtQCvV3Lm9NLico3UhFwUpCG/+mVU=
|
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golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/crypto v0.0.0-20200109152110-61a87790db17 h1:nVJ3guKA9qdkEQ3TUdXI9QSINo2CUPM/cySEvw2w8I0=
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golang.org/x/crypto v0.0.0-20200109152110-61a87790db17/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 h1:Ao/3l156eZf2AW5wK8a7/smtodRU+gha3+BeqJ69lRk=
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golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190221075227-b4e8571b14e0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e h1:D5TXcfTk7xF7hvieo4QErS3qqCB4teTffacDWr7CI+0=
|
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golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
|
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golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
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golang.org/x/tools v0.0.0-20190729092621-ff9f1409240a/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
|
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
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gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
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gopkg.in/src-d/go-billy.v4 v4.3.2 h1:0SQA1pRztfTFx2miS8sA97XvooFeNOmvUenF4o0EcVg=
|
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gopkg.in/src-d/go-billy.v4 v4.3.2/go.mod h1:nDjArDMp+XMs1aFAESLRjfGSgfvoYN0hDfzEk0GjC98=
|
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gopkg.in/src-d/go-git-fixtures.v3 v3.5.0/go.mod h1:dLBcvytrw/TYZsNTWCnkNF2DSIlzWYqTe3rJR56Ac7g=
|
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gopkg.in/src-d/go-git.v4 v4.13.1 h1:SRtFyV8Kxc0UP7aCHcijOMQGPxHSmMOPrzulQWolkYE=
|
||||
gopkg.in/src-d/go-git.v4 v4.13.1/go.mod h1:nx5NYcxdKxq5fpltdHnPa2Exj4Sx0EclMWZQbYDu2z8=
|
||||
gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
|
||||
gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
|
||||
gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
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152
cmd/git-http-server/main.go
Normal file
152
cmd/git-http-server/main.go
Normal file
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package main
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|
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import (
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"bytes"
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"errors"
|
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"flag"
|
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"fmt"
|
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"io/ioutil"
|
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"log"
|
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"net/http"
|
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"path/filepath"
|
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"strings"
|
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"text/template"
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"time"
|
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|
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"gitlab.com/golang-commonmark/markdown"
|
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"gopkg.in/src-d/go-git.v4"
|
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"gopkg.in/src-d/go-git.v4/plumbing"
|
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"gopkg.in/src-d/go-git.v4/plumbing/object"
|
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)
|
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|
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type handler struct {
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repo *git.Repository
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branch plumbing.ReferenceName
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tpl *template.Template
|
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}
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func (h handler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
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path := r.URL.Path
|
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var mdPath string
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if strings.HasSuffix(path, "/") {
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mdPath = filepath.Join(path, "README.md") // do before modifying path
|
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path = filepath.Join(path, "index.html")
|
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|
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} else if strings.HasSuffix(path, "/index.html") {
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mdPath = filepath.Join(filepath.Dir(path), "README.md")
|
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|
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} else if filepath.Ext(path) == ".html" {
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mdPath = strings.TrimSuffix(path, ".html") + ".md"
|
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}
|
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|
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path = strings.TrimPrefix(path, "/")
|
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mdPath = strings.TrimPrefix(mdPath, "/")
|
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|
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ref, err := h.repo.Reference(h.branch, true)
|
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if errors.Is(err, plumbing.ErrReferenceNotFound) {
|
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http.Error(rw, "branch does not exist", 404)
|
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return
|
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} else if err != nil {
|
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log.Printf("resolving reference %q: %v", h.branch, err)
|
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http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
hash := ref.Hash()
|
||||
commit, err := h.repo.CommitObject(hash)
|
||||
if err != nil {
|
||||
log.Printf("fetching commit %q: %v", hash, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
tree, err := h.repo.TreeObject(commit.TreeHash)
|
||||
if err != nil {
|
||||
log.Printf("fetching tree %q of commit %q: %v", commit.TreeHash, hash, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
var usingMD bool
|
||||
f, err := tree.File(path)
|
||||
if errors.Is(err, object.ErrFileNotFound) {
|
||||
usingMD = true
|
||||
f, err = tree.File(mdPath)
|
||||
}
|
||||
|
||||
if errors.Is(err, object.ErrFileNotFound) {
|
||||
http.Error(rw, fmt.Sprintf("%q not found", path), 404)
|
||||
return
|
||||
} else if err != nil {
|
||||
log.Printf("fetching file %q / %q: %v", path, mdPath, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
fr, err := f.Blob.Reader()
|
||||
if err != nil {
|
||||
log.Printf("getting reader of file %q: %v", f.Name, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
defer fr.Close()
|
||||
|
||||
b, err := ioutil.ReadAll(fr)
|
||||
if err != nil {
|
||||
log.Printf("reading in contents of file %q: %v", f.Name, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
if !usingMD {
|
||||
http.ServeContent(rw, r, filepath.Base(path), time.Now(), bytes.NewReader(b))
|
||||
return
|
||||
}
|
||||
|
||||
mdBuf := new(bytes.Buffer)
|
||||
if err := markdown.New().Render(mdBuf, b); err != nil {
|
||||
log.Printf("rendering file %q to markdown: %v", f.Name, err)
|
||||
http.Error(rw, "internal error", 500)
|
||||
return
|
||||
}
|
||||
|
||||
if h.tpl == nil {
|
||||
http.ServeContent(rw, r, filepath.Base(path), time.Now(), bytes.NewReader(mdBuf.Bytes()))
|
||||
return
|
||||
}
|
||||
|
||||
h.tpl.Execute(rw, struct {
|
||||
Body string
|
||||
}{mdBuf.String()})
|
||||
}
|
||||
|
||||
func main() {
|
||||
addr := flag.String("addr", ":8000", "Address to listen for http requests on")
|
||||
branchName := flag.String("branch", "master", "git branch to serve the HEAD of")
|
||||
repoPath := flag.String("repo-path", ".", "Path to the git repository to server")
|
||||
tplPath := flag.String("tpl-path", "", "Path to an optional template file which can be used when rendering markdown")
|
||||
flag.Parse()
|
||||
|
||||
repo, err := git.PlainOpen(*repoPath)
|
||||
if err != nil {
|
||||
log.Fatalf("opening git repo at path %q: %v", *repoPath, err)
|
||||
}
|
||||
branch := plumbing.NewBranchReferenceName(*branchName)
|
||||
|
||||
// do an initial check for the branch, for funsies
|
||||
if _, err := repo.Reference(branch, true); err != nil {
|
||||
log.Fatalf("resolving reference %q: %v", branch, err)
|
||||
}
|
||||
|
||||
h := &handler{
|
||||
repo: repo,
|
||||
branch: branch,
|
||||
}
|
||||
|
||||
if *tplPath != "" {
|
||||
h.tpl = template.Must(template.ParseFiles(*tplPath))
|
||||
}
|
||||
|
||||
log.Printf("listening on %q", *addr)
|
||||
http.ListenAndServe(*addr, h)
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user