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use fakeroot from gitea.plemya-x.ru/Plemya-x/fakeroot

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This commit is contained in:
Maxim Slipenko 2025-04-19 18:05:01 +03:00
parent e552663442
commit f623cba5c0
4 changed files with 7 additions and 50 deletions
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4
assets/coverage-badge.svg
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@ -11,7 +11,7 @@
<g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
<text x="33.5" y="15" fill="#010101" fill-opacity=".3">coverage</text>
<text x="33.5" y="14">coverage</text>
<text x="86" y="15" fill="#010101" fill-opacity=".3">16.3%</text>
<text x="86" y="14">16.3%</text>
<text x="86" y="15" fill="#010101" fill-opacity=".3">16.4%</text>
<text x="86" y="14">16.4%</text>
</g>
</svg>

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1
go.mod
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@ -45,6 +45,7 @@ require (
require (
dario.cat/mergo v1.0.1 // indirect
gitea.plemya-x.ru/Plemya-x/fakeroot v0.0.2-0.20250408104831-427aaa7713c3 // indirect
github.com/AlekSi/pointer v1.2.0 // indirect
github.com/Masterminds/goutils v1.1.1 // indirect
github.com/Masterminds/semver/v3 v3.3.0 // indirect

2
go.sum
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@ -17,6 +17,8 @@ cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0Zeo
dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
gitea.plemya-x.ru/Plemya-x/fakeroot v0.0.2-0.20250408104831-427aaa7713c3 h1:56BjRJJ2Sv50DfSvNUydUMJwwFuiBMWC1uYtH2GYjk8=
gitea.plemya-x.ru/Plemya-x/fakeroot v0.0.2-0.20250408104831-427aaa7713c3/go.mod h1:iKQM6uttMJgE5CFrPw6SQqAV7TKtlJNICRAie/dTciw=
github.com/AlecAivazis/survey/v2 v2.3.7 h1:6I/u8FvytdGsgonrYsVn2t8t4QiRnh6QSTqkkhIiSjQ=
github.com/AlecAivazis/survey/v2 v2.3.7/go.mod h1:xUTIdE4KCOIjsBAE1JYsUPoCqYdZ1reCfTwbto0Fduo=
github.com/AlekSi/pointer v1.2.0 h1:glcy/gc4h8HnG2Z3ZECSzZ1IX1x2JxRVuDzaJwQE0+w=

50
internal/shutils/handlers/fakeroot.go
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@ -25,11 +25,11 @@ import (
"os"
"os/exec"
"runtime"
"slices"
"strings"
"syscall"
"time"
"gitea.plemya-x.ru/Plemya-x/fakeroot"
"mvdan.cc/sh/v3/expand"
"mvdan.cc/sh/v3/interp"
)
@ -54,7 +54,7 @@ func FakerootExecHandler(killTimeout time.Duration) interp.ExecHandlerFunc {
Stderr: hc.Stderr,
}
err = Apply(cmd)
err = fakeroot.Apply(cmd)
if err != nil {
return err
}
@ -108,52 +108,6 @@ func FakerootExecHandler(killTimeout time.Duration) interp.ExecHandlerFunc {
}
}
func rootMap(m syscall.SysProcIDMap) bool {
return m.ContainerID == 0
}
func Apply(cmd *exec.Cmd) error {
uid := os.Getuid()
gid := os.Getgid()
// If the user is already root, there's no need for fakeroot
if uid == 0 {
return nil
}
// Ensure SysProcAttr isn't nil
if cmd.SysProcAttr == nil {
cmd.SysProcAttr = &syscall.SysProcAttr{}
}
// Create a new user namespace
cmd.SysProcAttr.Cloneflags |= syscall.CLONE_NEWUSER
// If the command already contains a mapping for the root user, return an error
if slices.ContainsFunc(cmd.SysProcAttr.UidMappings, rootMap) {
return nil
}
// If the command already contains a mapping for the root group, return an error
if slices.ContainsFunc(cmd.SysProcAttr.GidMappings, rootMap) {
return nil
}
cmd.SysProcAttr.UidMappings = append(cmd.SysProcAttr.UidMappings, syscall.SysProcIDMap{
ContainerID: 0,
HostID: uid,
Size: 1,
})
cmd.SysProcAttr.GidMappings = append(cmd.SysProcAttr.GidMappings, syscall.SysProcIDMap{
ContainerID: 0,
HostID: gid,
Size: 1,
})
return nil
}
// execEnv was extracted from github.com/mvdan/sh/interp/vars.go
func execEnv(env expand.Environ) []string {
list := make([]string, 0, 64)