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Refactor git command package to improve security and maintainability (#22678)

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This PR follows #21535 (and replace #22592)

## Review without space diff

https://github.com/go-gitea/gitea/pull/22678/files?diff=split&w=1

## Purpose of this PR

1. Make git module command completely safe (risky user inputs won't be
passed as argument option anymore)
2. Avoid low-level mistakes like
https://github.com/go-gitea/gitea/pull/22098#discussion_r1045234918
3. Remove deprecated and dirty `CmdArgCheck` function, hide the `CmdArg`
type
4. Simplify code when using git command

## The main idea of this PR

* Move the `git.CmdArg` to the `internal` package, then no other package
except `git` could use it. Then developers could never do
`AddArguments(git.CmdArg(userInput))` any more.
* Introduce `git.ToTrustedCmdArgs`, it's for user-provided and already
trusted arguments. It's only used in a few cases, for example: use git
arguments from config file, help unit test with some arguments.
* Introduce `AddOptionValues` and `AddOptionFormat`, they make code more
clear and simple:
    * Before: `AddArguments("-m").AddDynamicArguments(message)`
    * After: `AddOptionValues("-m", message)`
    * -
* Before: `AddArguments(git.CmdArg(fmt.Sprintf("--author='%s <%s>'",
sig.Name, sig.Email)))`
* After: `AddOptionFormat("--author='%s <%s>'", sig.Name, sig.Email)`

## FAQ

### Why these changes were not done in #21535 ?

#21535 is mainly a search&replace, it did its best to not change too
much logic.

Making the framework better needs a lot of changes, so this separate PR
is needed as the second step.


### The naming of `AddOptionXxx`

According to git's manual, the `--xxx` part is called `option`.

### How can it guarantee that `internal.CmdArg` won't be not misused?

Go's specification guarantees that. Trying to access other package's
internal package causes compilation error.

And, `golangci-lint` also denies the git/internal package. Only the
`git/command.go` can use it carefully.

### There is still a `ToTrustedCmdArgs`, will it still allow developers
to make mistakes and pass untrusted arguments?

Generally speaking, no. Because when using `ToTrustedCmdArgs`, the code
will be very complex (see the changes for examples). Then developers and
reviewers can know that something might be unreasonable.

### Why there was a `CmdArgCheck` and why it's removed?

At the moment of #21535, to reduce unnecessary changes, `CmdArgCheck`
was introduced as a hacky patch. Now, almost all code could be written
as `cmd := NewCommand(); cmd.AddXxx(...)`, then there is no need for
`CmdArgCheck` anymore.


### Why many codes for `signArg == ""` is deleted?

Because in the old code, `signArg` could never be empty string, it's
either `-S[key-id]` or `--no-gpg-sign`. So the `signArg == ""` is just
dead code.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
This commit is contained in:
wxiaoguang 2023-02-04 10:30:43 +08:00 • committed by GitHub
parent 3c5655ce18
commit 6bc3079c00
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
42 changed files with 382 additions and 385 deletions
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97
modules/git/command.go
View file

@ -16,14 +16,20 @@ import (
"time"
"unsafe"
"code.gitea.io/gitea/modules/git/internal" //nolint:depguard // only this file can use the internal type CmdArg, other files and packages should use AddXxx functions
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/util"
)
// TrustedCmdArgs returns the trusted arguments for git command.
// It's mainly for passing user-provided and trusted arguments to git command
// In most cases, it shouldn't be used. Use AddXxx function instead
type TrustedCmdArgs []internal.CmdArg
var (
// globalCommandArgs global command args for external package setting
globalCommandArgs []CmdArg
globalCommandArgs TrustedCmdArgs
// defaultCommandExecutionTimeout default command execution timeout duration
defaultCommandExecutionTimeout = 360 * time.Second
@ -42,8 +48,6 @@ type Command struct {
brokenArgs []string
}
type CmdArg string
func (c *Command) String() string {
if len(c.args) == 0 {
return c.name
@ -53,7 +57,7 @@ func (c *Command) String() string {
// NewCommand creates and returns a new Git Command based on given command and arguments.
// Each argument should be safe to be trusted. User-provided arguments should be passed to AddDynamicArguments instead.
func NewCommand(ctx context.Context, args ...CmdArg) *Command {
func NewCommand(ctx context.Context, args ...internal.CmdArg) *Command {
// Make an explicit copy of globalCommandArgs, otherwise append might overwrite it
cargs := make([]string, 0, len(globalCommandArgs)+len(args))
for _, arg := range globalCommandArgs {
@ -70,15 +74,9 @@ func NewCommand(ctx context.Context, args ...CmdArg) *Command {
}
}
// NewCommandNoGlobals creates and returns a new Git Command based on given command and arguments only with the specify args and don't care global command args
// Each argument should be safe to be trusted. User-provided arguments should be passed to AddDynamicArguments instead.
func NewCommandNoGlobals(args ...CmdArg) *Command {
return NewCommandContextNoGlobals(DefaultContext, args...)
}
// NewCommandContextNoGlobals creates and returns a new Git Command based on given command and arguments only with the specify args and don't care global command args
// Each argument should be safe to be trusted. User-provided arguments should be passed to AddDynamicArguments instead.
func NewCommandContextNoGlobals(ctx context.Context, args ...CmdArg) *Command {
func NewCommandContextNoGlobals(ctx context.Context, args ...internal.CmdArg) *Command {
cargs := make([]string, 0, len(args))
for _, arg := range args {
cargs = append(cargs, string(arg))
@ -96,27 +94,70 @@ func (c *Command) SetParentContext(ctx context.Context) *Command {
return c
}
// SetDescription sets the description for this command which be returned on
// c.String()
// SetDescription sets the description for this command which be returned on c.String()
func (c *Command) SetDescription(desc string) *Command {
c.desc = desc
return c
}
// AddArguments adds new git argument(s) to the command. Each argument must be safe to be trusted.
// User-provided arguments should be passed to AddDynamicArguments instead.
func (c *Command) AddArguments(args ...CmdArg) *Command {
// isSafeArgumentValue checks if the argument is safe to be used as a value (not an option)
func isSafeArgumentValue(s string) bool {
return s == "" || s[0] != '-'
}
// isValidArgumentOption checks if the argument is a valid option (starting with '-').
// It doesn't check whether the option is supported or not
func isValidArgumentOption(s string) bool {
return s != "" && s[0] == '-'
}
// AddArguments adds new git arguments (option/value) to the command. It only accepts string literals, or trusted CmdArg.
// Type CmdArg is in the internal package, so it can not be used outside of this package directly,
// it makes sure that user-provided arguments won't cause RCE risks.
// User-provided arguments should be passed by other AddXxx functions
func (c *Command) AddArguments(args ...internal.CmdArg) *Command {
for _, arg := range args {
c.args = append(c.args, string(arg))
}
return c
}
// AddDynamicArguments adds new dynamic argument(s) to the command.
// The arguments may come from user input and can not be trusted, so no leading '-' is allowed to avoid passing options
// AddOptionValues adds a new option with a list of non-option values
// For example: AddOptionValues("--opt", val) means 2 arguments: {"--opt", val}.
// The values are treated as dynamic argument values. It equals to: AddArguments("--opt") then AddDynamicArguments(val).
func (c *Command) AddOptionValues(opt internal.CmdArg, args ...string) *Command {
if !isValidArgumentOption(string(opt)) {
c.brokenArgs = append(c.brokenArgs, string(opt))
return c
}
c.args = append(c.args, string(opt))
c.AddDynamicArguments(args...)
return c
}
// AddOptionFormat adds a new option with a format string and arguments
// For example: AddOptionFormat("--opt=%s %s", val1, val2) means 1 argument: {"--opt=val1 val2"}.
func (c *Command) AddOptionFormat(opt string, args ...any) *Command {
if !isValidArgumentOption(opt) {
c.brokenArgs = append(c.brokenArgs, opt)
return c
}
// a quick check to make sure the format string matches the number of arguments, to find low-level mistakes ASAP
if strings.Count(strings.ReplaceAll(opt, "%%", ""), "%") != len(args) {
c.brokenArgs = append(c.brokenArgs, opt)
return c
}
s := fmt.Sprintf(opt, args...)
c.args = append(c.args, s)
return c
}
// AddDynamicArguments adds new dynamic argument values to the command.
// The arguments may come from user input and can not be trusted, so no leading '-' is allowed to avoid passing options.
// TODO: in the future, this function can be renamed to AddArgumentValues
func (c *Command) AddDynamicArguments(args ...string) *Command {
for _, arg := range args {
if arg != "" && arg[0] == '-' {
if !isSafeArgumentValue(arg) {
c.brokenArgs = append(c.brokenArgs, arg)
}
}
@ -137,14 +178,14 @@ func (c *Command) AddDashesAndList(list ...string) *Command {
return c
}
// CmdArgCheck checks whether the string is safe to be used as a dynamic argument.
// It panics if the check fails. Usually it should not be used, it's just for refactoring purpose
// deprecated
func CmdArgCheck(s string) CmdArg {
if s != "" && s[0] == '-' {
panic("invalid git cmd argument: " + s)
// ToTrustedCmdArgs converts a list of strings (trusted as argument) to TrustedCmdArgs
// In most cases, it shouldn't be used. Use AddXxx function instead
func ToTrustedCmdArgs(args []string) TrustedCmdArgs {
ret := make(TrustedCmdArgs, len(args))
for i, arg := range args {
ret[i] = internal.CmdArg(arg)
}
return CmdArg(s)
return ret
}
// RunOpts represents parameters to run the command. If UseContextTimeout is specified, then Timeout is ignored.
@ -364,9 +405,9 @@ func (c *Command) RunStdBytes(opts *RunOpts) (stdout, stderr []byte, runErr RunS
}
// AllowLFSFiltersArgs return globalCommandArgs with lfs filter, it should only be used for tests
func AllowLFSFiltersArgs() []CmdArg {
func AllowLFSFiltersArgs() TrustedCmdArgs {
// Now here we should explicitly allow lfs filters to run
filteredLFSGlobalArgs := make([]CmdArg, len(globalCommandArgs))
filteredLFSGlobalArgs := make(TrustedCmdArgs, len(globalCommandArgs))
j := 0
for _, arg := range globalCommandArgs {
if strings.Contains(string(arg), "lfs") {

11
modules/git/command_test.go
View file

@ -41,3 +41,14 @@ func TestRunWithContextStd(t *testing.T) {
assert.Empty(t, stderr)
assert.Contains(t, stdout, "git version")
}
func TestGitArgument(t *testing.T) {
assert.True(t, isValidArgumentOption("-x"))
assert.True(t, isValidArgumentOption("--xx"))
assert.False(t, isValidArgumentOption(""))
assert.False(t, isValidArgumentOption("x"))
assert.True(t, isSafeArgumentValue(""))
assert.True(t, isSafeArgumentValue("x"))
assert.False(t, isSafeArgumentValue("-x"))
}

18
modules/git/commit.go
View file

@ -9,7 +9,6 @@ import (
"bytes"
"context"
"errors"
"fmt"
"io"
"os/exec"
"strconv"
@ -91,8 +90,8 @@ func AddChanges(repoPath string, all bool, files ...string) error {
}
// AddChangesWithArgs marks local changes to be ready for commit.
func AddChangesWithArgs(repoPath string, globalArgs []CmdArg, all bool, files ...string) error {
cmd := NewCommandNoGlobals(append(globalArgs, "add")...)
func AddChangesWithArgs(repoPath string, globalArgs TrustedCmdArgs, all bool, files ...string) error {
cmd := NewCommandContextNoGlobals(DefaultContext, globalArgs...).AddArguments("add")
if all {
cmd.AddArguments("--all")
}
@ -111,17 +110,18 @@ type CommitChangesOptions struct {
// CommitChanges commits local changes with given committer, author and message.
// If author is nil, it will be the same as committer.
func CommitChanges(repoPath string, opts CommitChangesOptions) error {
cargs := make([]CmdArg, len(globalCommandArgs))
cargs := make(TrustedCmdArgs, len(globalCommandArgs))
copy(cargs, globalCommandArgs)
return CommitChangesWithArgs(repoPath, cargs, opts)
}
// CommitChangesWithArgs commits local changes with given committer, author and message.
// If author is nil, it will be the same as committer.
func CommitChangesWithArgs(repoPath string, args []CmdArg, opts CommitChangesOptions) error {
cmd := NewCommandNoGlobals(args...)
func CommitChangesWithArgs(repoPath string, args TrustedCmdArgs, opts CommitChangesOptions) error {
cmd := NewCommandContextNoGlobals(DefaultContext, args...)
if opts.Committer != nil {
cmd.AddArguments("-c", CmdArg("user.name="+opts.Committer.Name), "-c", CmdArg("user.email="+opts.Committer.Email))
cmd.AddOptionValues("-c", "user.name="+opts.Committer.Name)
cmd.AddOptionValues("-c", "user.email="+opts.Committer.Email)
}
cmd.AddArguments("commit")
@ -129,9 +129,9 @@ func CommitChangesWithArgs(repoPath string, args []CmdArg, opts CommitChangesOpt
opts.Author = opts.Committer
}
if opts.Author != nil {
cmd.AddArguments(CmdArg(fmt.Sprintf("--author='%s <%s>'", opts.Author.Name, opts.Author.Email)))
cmd.AddOptionFormat("--author='%s <%s>'", opts.Author.Name, opts.Author.Email)
}
cmd.AddArguments("-m").AddDynamicArguments(opts.Message)
cmd.AddOptionValues("-m", opts.Message)
_, _, err := cmd.RunStdString(&RunOpts{Dir: repoPath})
// No stderr but exit status 1 means nothing to commit.

2
modules/git/git.go
View file

@ -383,6 +383,6 @@ func configUnsetAll(key, value string) error {
}
// Fsck verifies the connectivity and validity of the objects in the database
func Fsck(ctx context.Context, repoPath string, timeout time.Duration, args ...CmdArg) error {
func Fsck(ctx context.Context, repoPath string, timeout time.Duration, args TrustedCmdArgs) error {
return NewCommand(ctx, "fsck").AddArguments(args...).Run(&RunOpts{Timeout: timeout, Dir: repoPath})
}

9
modules/git/internal/cmdarg.go Normal file
View file

@ -0,0 +1,9 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
// CmdArg represents a command argument for git command, and it will be used for the git command directly without any further processing.
// In most cases, you should use the "AddXxx" functions to add arguments, but not use this type directly.
// Casting a risky (user-provided) string to CmdArg would cause security issues if it's injected with a "--xxx" argument.
type CmdArg string

2
modules/git/repo.go
View file

@ -115,7 +115,7 @@ func Clone(ctx context.Context, from, to string, opts CloneRepoOptions) error {
}
// CloneWithArgs original repository to target path.
func CloneWithArgs(ctx context.Context, args []CmdArg, from, to string, opts CloneRepoOptions) (err error) {
func CloneWithArgs(ctx context.Context, args TrustedCmdArgs, from, to string, opts CloneRepoOptions) (err error) {
toDir := path.Dir(to)
if err = os.MkdirAll(toDir, os.ModePerm); err != nil {
return err

4
modules/git/repo_archive.go
View file

@ -57,9 +57,9 @@ func (repo *Repository) CreateArchive(ctx context.Context, format ArchiveType, t
cmd := NewCommand(ctx, "archive")
if usePrefix {
cmd.AddArguments(CmdArg("--prefix=" + filepath.Base(strings.TrimSuffix(repo.Path, ".git")) + "/"))
cmd.AddOptionFormat("--prefix=%s", filepath.Base(strings.TrimSuffix(repo.Path, ".git"))+"/")
}
cmd.AddArguments(CmdArg("--format=" + format.String()))
cmd.AddOptionFormat("--format=%s", format.String())
cmd.AddDynamicArguments(commitID)
var stderr strings.Builder

40
modules/git/repo_attribute.go
View file

@ -17,7 +17,7 @@ import (
type CheckAttributeOpts struct {
CachedOnly bool
AllAttributes bool
Attributes []CmdArg
Attributes []string
Filenames []string
IndexFile string
WorkTree string
@ -48,7 +48,7 @@ func (repo *Repository) CheckAttribute(opts CheckAttributeOpts) (map[string]map[
} else {
for _, attribute := range opts.Attributes {
if attribute != "" {
cmd.AddArguments(attribute)
cmd.AddDynamicArguments(attribute)
}
}
}
@ -95,7 +95,7 @@ func (repo *Repository) CheckAttribute(opts CheckAttributeOpts) (map[string]map[
// CheckAttributeReader provides a reader for check-attribute content that can be long running
type CheckAttributeReader struct {
// params
Attributes []CmdArg
Attributes []string
Repo *Repository
IndexFile string
WorkTree string
@ -111,19 +111,6 @@ type CheckAttributeReader struct {
// Init initializes the CheckAttributeReader
func (c *CheckAttributeReader) Init(ctx context.Context) error {
cmdArgs := []CmdArg{"check-attr", "--stdin", "-z"}
if len(c.IndexFile) > 0 {
cmdArgs = append(cmdArgs, "--cached")
c.env = append(c.env, "GIT_INDEX_FILE="+c.IndexFile)
}
if len(c.WorkTree) > 0 {
c.env = append(c.env, "GIT_WORK_TREE="+c.WorkTree)
}
c.env = append(c.env, "GIT_FLUSH=1")
if len(c.Attributes) == 0 {
lw := new(nulSeparatedAttributeWriter)
lw.attributes = make(chan attributeTriple)
@ -134,11 +121,22 @@ func (c *CheckAttributeReader) Init(ctx context.Context) error {
return fmt.Errorf("no provided Attributes to check")
}
cmdArgs = append(cmdArgs, c.Attributes...)
cmdArgs = append(cmdArgs, "--")
c.ctx, c.cancel = context.WithCancel(ctx)
c.cmd = NewCommand(c.ctx, cmdArgs...)
c.cmd = NewCommand(c.ctx, "check-attr", "--stdin", "-z")
if len(c.IndexFile) > 0 {
c.cmd.AddArguments("--cached")
c.env = append(c.env, "GIT_INDEX_FILE="+c.IndexFile)
}
if len(c.WorkTree) > 0 {
c.env = append(c.env, "GIT_WORK_TREE="+c.WorkTree)
}
c.env = append(c.env, "GIT_FLUSH=1")
// The empty "--" comes from #16773 , and it seems unnecessary because nothing else would be added later.
c.cmd.AddDynamicArguments(c.Attributes...).AddArguments("--")
var err error
@ -294,7 +292,7 @@ func (repo *Repository) CheckAttributeReader(commitID string) (*CheckAttributeRe
}
checker := &CheckAttributeReader{
Attributes: []CmdArg{"linguist-vendored", "linguist-generated", "linguist-language", "gitlab-language"},
Attributes: []string{"linguist-vendored", "linguist-generated", "linguist-language", "gitlab-language"},
Repo: repo,
IndexFile: indexFilename,
WorkTree: worktree,

8
modules/git/repo_blame.go
View file

@ -3,7 +3,9 @@
package git
import "fmt"
import (
"fmt"
)
// FileBlame return the Blame object of file
func (repo *Repository) FileBlame(revision, path, file string) ([]byte, error) {
@ -14,8 +16,8 @@ func (repo *Repository) FileBlame(revision, path, file string) ([]byte, error) {
// LineBlame returns the latest commit at the given line
func (repo *Repository) LineBlame(revision, path, file string, line uint) (*Commit, error) {
res, _, err := NewCommand(repo.Ctx, "blame").
AddArguments(CmdArg(fmt.Sprintf("-L %d,%d", line, line))).
AddArguments("-p").AddDynamicArguments(revision).
AddOptionFormat("-L %d,%d", line, line).
AddOptionValues("-p", revision).
AddDashesAndList(file).RunStdString(&RunOpts{Dir: path})
if err != nil {
return nil, err

4
modules/git/repo_branch_gogit.go
View file

@ -50,8 +50,8 @@ func (repo *Repository) IsBranchExist(name string) bool {
return reference.Type() != plumbing.InvalidReference
}
// GetBranches returns branches from the repository, skipping skip initial branches and
// returning at most limit branches, or all branches if limit is 0.
// GetBranches returns branches from the repository, skipping "skip" initial branches and
// returning at most "limit" branches, or all branches if "limit" is 0.
func (repo *Repository) GetBranchNames(skip, limit int) ([]string, int, error) {
var branchNames []string

18
modules/git/repo_branch_nogogit.go
View file

@ -59,10 +59,10 @@ func (repo *Repository) IsBranchExist(name string) bool {
return repo.IsReferenceExist(BranchPrefix + name)
}
// GetBranchNames returns branches from the repository, skipping skip initial branches and
// returning at most limit branches, or all branches if limit is 0.
// GetBranchNames returns branches from the repository, skipping "skip" initial branches and
// returning at most "limit" branches, or all branches if "limit" is 0.
func (repo *Repository) GetBranchNames(skip, limit int) ([]string, int, error) {
return callShowRef(repo.Ctx, repo.Path, BranchPrefix, []CmdArg{BranchPrefix, "--sort=-committerdate"}, skip, limit)
return callShowRef(repo.Ctx, repo.Path, BranchPrefix, TrustedCmdArgs{BranchPrefix, "--sort=-committerdate"}, skip, limit)
}
// WalkReferences walks all the references from the repository
@ -73,19 +73,19 @@ func WalkReferences(ctx context.Context, repoPath string, walkfn func(sha1, refn
// WalkReferences walks all the references from the repository
// refType should be empty, ObjectTag or ObjectBranch. All other values are equivalent to empty.
func (repo *Repository) WalkReferences(refType ObjectType, skip, limit int, walkfn func(sha1, refname string) error) (int, error) {
var args []CmdArg
var args TrustedCmdArgs
switch refType {
case ObjectTag:
args = []CmdArg{TagPrefix, "--sort=-taggerdate"}
args = TrustedCmdArgs{TagPrefix, "--sort=-taggerdate"}
case ObjectBranch:
args = []CmdArg{BranchPrefix, "--sort=-committerdate"}
args = TrustedCmdArgs{BranchPrefix, "--sort=-committerdate"}
}
return walkShowRef(repo.Ctx, repo.Path, args, skip, limit, walkfn)
}
// callShowRef return refs, if limit = 0 it will not limit
func callShowRef(ctx context.Context, repoPath, trimPrefix string, extraArgs []CmdArg, skip, limit int) (branchNames []string, countAll int, err error) {
func callShowRef(ctx context.Context, repoPath, trimPrefix string, extraArgs TrustedCmdArgs, skip, limit int) (branchNames []string, countAll int, err error) {
countAll, err = walkShowRef(ctx, repoPath, extraArgs, skip, limit, func(_, branchName string) error {
branchName = strings.TrimPrefix(branchName, trimPrefix)
branchNames = append(branchNames, branchName)
@ -95,7 +95,7 @@ func callShowRef(ctx context.Context, repoPath, trimPrefix string, extraArgs []C
return branchNames, countAll, err
}
func walkShowRef(ctx context.Context, repoPath string, extraArgs []CmdArg, skip, limit int, walkfn func(sha1, refname string) error) (countAll int, err error) {
func walkShowRef(ctx context.Context, repoPath string, extraArgs TrustedCmdArgs, skip, limit int, walkfn func(sha1, refname string) error) (countAll int, err error) {
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
@ -104,7 +104,7 @@ func walkShowRef(ctx context.Context, repoPath string, extraArgs []CmdArg, skip,
go func() {
stderrBuilder := &strings.Builder{}
args := []CmdArg{"for-each-ref", "--format=%(objectname) %(refname)"}
args := TrustedCmdArgs{"for-each-ref", "--format=%(objectname) %(refname)"}
args = append(args, extraArgs...)
err := NewCommand(ctx, args...).Run(&RunOpts{
Dir: repoPath,

100
modules/git/repo_commit.go
View file

@ -89,7 +89,7 @@ func (repo *Repository) GetCommitByPath(relpath string) (*Commit, error) {
func (repo *Repository) commitsByRange(id SHA1, page, pageSize int) ([]*Commit, error) {
stdout, _, err := NewCommand(repo.Ctx, "log").
AddArguments(CmdArg("--skip="+strconv.Itoa((page-1)*pageSize)), CmdArg("--max-count="+strconv.Itoa(pageSize)), prettyLogFormat).
AddOptionFormat("--skip=%d", (page-1)*pageSize).AddOptionFormat("--max-count=%d", pageSize).AddArguments(prettyLogFormat).
AddDynamicArguments(id.String()).
RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil {
@ -99,32 +99,36 @@ func (repo *Repository) commitsByRange(id SHA1, page, pageSize int) ([]*Commit,
}
func (repo *Repository) searchCommits(id SHA1, opts SearchCommitsOptions) ([]*Commit, error) {
// create new git log command with limit of 100 commis
// add common arguments to git command
addCommonSearchArgs := func(c *Command) {
// ignore case
c.AddArguments("-i")
// add authors if present in search query
if len(opts.Authors) > 0 {
for _, v := range opts.Authors {
c.AddOptionFormat("--author=%s", v)
}
}
// add committers if present in search query
if len(opts.Committers) > 0 {
for _, v := range opts.Committers {
c.AddOptionFormat("--committer=%s", v)
}
}
// add time constraints if present in search query
if len(opts.After) > 0 {
c.AddOptionFormat("--after=%s", opts.After)
}
if len(opts.Before) > 0 {
c.AddOptionFormat("--before=%s", opts.Before)
}
}
// create new git log command with limit of 100 commits
cmd := NewCommand(repo.Ctx, "log", "-100", prettyLogFormat).AddDynamicArguments(id.String())
// ignore case
args := []CmdArg{"-i"}
// add authors if present in search query
if len(opts.Authors) > 0 {
for _, v := range opts.Authors {
args = append(args, CmdArg("--author="+v))
}
}
// add committers if present in search query
if len(opts.Committers) > 0 {
for _, v := range opts.Committers {
args = append(args, CmdArg("--committer="+v))
}
}
// add time constraints if present in search query
if len(opts.After) > 0 {
args = append(args, CmdArg("--after="+opts.After))
}
if len(opts.Before) > 0 {
args = append(args, CmdArg("--before="+opts.Before))
}
// pretend that all refs along with HEAD were listed on command line as <commis>
// https://git-scm.com/docs/git-log#Documentation/git-log.txt---all
@ -137,12 +141,12 @@ func (repo *Repository) searchCommits(id SHA1, opts SearchCommitsOptions) ([]*Co
// note this is done only for command created above
if len(opts.Keywords) > 0 {
for _, v := range opts.Keywords {
cmd.AddArguments(CmdArg("--grep=" + v))
cmd.AddOptionFormat("--grep=%s", v)
}
}
// search for commits matching given constraints and keywords in commit msg
cmd.AddArguments(args...)
addCommonSearchArgs(cmd)
stdout, _, err := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
@ -160,7 +164,7 @@ func (repo *Repository) searchCommits(id SHA1, opts SearchCommitsOptions) ([]*Co
// create new git log command with 1 commit limit
hashCmd := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat)
// add previous arguments except for --grep and --all
hashCmd.AddArguments(args...)
addCommonSearchArgs(hashCmd)
// add keyword as <commit>
hashCmd.AddDynamicArguments(v)
@ -213,8 +217,8 @@ func (repo *Repository) CommitsByFileAndRange(revision, file string, page int) (
go func() {
stderr := strings.Builder{}
gitCmd := NewCommand(repo.Ctx, "rev-list").
AddArguments(CmdArg("--max-count=" + strconv.Itoa(setting.Git.CommitsRangeSize*page))).
AddArguments(CmdArg("--skip=" + strconv.Itoa(skip)))
AddOptionFormat("--max-count=%d", setting.Git.CommitsRangeSize*page).
AddOptionFormat("--skip=%d", skip)
gitCmd.AddDynamicArguments(revision)
gitCmd.AddDashesAndList(file)
err := gitCmd.Run(&RunOpts{
@ -295,21 +299,21 @@ func (repo *Repository) CommitsBetweenLimit(last, before *Commit, limit, skip in
var stdout []byte
var err error
if before == nil {
stdout, _, err = NewCommand(repo.Ctx, "rev-list",
"--max-count", CmdArg(strconv.Itoa(limit)),
"--skip", CmdArg(strconv.Itoa(skip))).
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
} else {
stdout, _, err = NewCommand(repo.Ctx, "rev-list",
"--max-count", CmdArg(strconv.Itoa(limit)),
"--skip", CmdArg(strconv.Itoa(skip))).
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(before.ID.String() + ".." + last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
// previously it would return the results of git rev-list --max-count n before last so let's try that...
stdout, _, err = NewCommand(repo.Ctx, "rev-list",
"--max-count", CmdArg(strconv.Itoa(limit)),
"--skip", CmdArg(strconv.Itoa(skip))).
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(before.ID.String(), last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
}
}
@ -349,12 +353,11 @@ func (repo *Repository) CommitsCountBetween(start, end string) (int64, error) {
// commitsBefore the limit is depth, not total number of returned commits.
func (repo *Repository) commitsBefore(id SHA1, limit int) ([]*Commit, error) {
cmd := NewCommand(repo.Ctx, "log")
cmd := NewCommand(repo.Ctx, "log", prettyLogFormat)
if limit > 0 {
cmd.AddArguments(CmdArg("-"+strconv.Itoa(limit)), prettyLogFormat).AddDynamicArguments(id.String())
} else {
cmd.AddArguments(prettyLogFormat).AddDynamicArguments(id.String())
cmd.AddOptionFormat("-%d", limit)
}
cmd.AddDynamicArguments(id.String())
stdout, _, runErr := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if runErr != nil {
@ -393,10 +396,9 @@ func (repo *Repository) getCommitsBeforeLimit(id SHA1, num int) ([]*Commit, erro
func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error) {
if CheckGitVersionAtLeast("2.7.0") == nil {
stdout, _, err := NewCommand(repo.Ctx, "for-each-ref",
CmdArg("--count="+strconv.Itoa(limit)),
"--format=%(refname:strip=2)", "--contains").
AddDynamicArguments(commit.ID.String(), BranchPrefix).
stdout, _, err := NewCommand(repo.Ctx, "for-each-ref", "--format=%(refname:strip=2)").
AddOptionFormat("--count=%d", limit).
AddOptionValues("--contains", commit.ID.String(), BranchPrefix).
RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
@ -406,7 +408,7 @@ func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error)
return branches, nil
}
stdout, _, err := NewCommand(repo.Ctx, "branch", "--contains").AddDynamicArguments(commit.ID.String()).RunStdString(&RunOpts{Dir: repo.Path})
stdout, _, err := NewCommand(repo.Ctx, "branch").AddOptionValues("--contains", commit.ID.String()).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}

14
modules/git/repo_compare.go
View file

@ -172,25 +172,21 @@ func (repo *Repository) GetDiffNumChangedFiles(base, head string, directComparis
// GetDiffShortStat counts number of changed files, number of additions and deletions
func (repo *Repository) GetDiffShortStat(base, head string) (numFiles, totalAdditions, totalDeletions int, err error) {
numFiles, totalAdditions, totalDeletions, err = GetDiffShortStat(repo.Ctx, repo.Path, CmdArgCheck(base+"..."+head))
numFiles, totalAdditions, totalDeletions, err = GetDiffShortStat(repo.Ctx, repo.Path, nil, base+"..."+head)
if err != nil && strings.Contains(err.Error(), "no merge base") {
return GetDiffShortStat(repo.Ctx, repo.Path, CmdArgCheck(base), CmdArgCheck(head))
return GetDiffShortStat(repo.Ctx, repo.Path, nil, base, head)
}
return numFiles, totalAdditions, totalDeletions, err
}
// GetDiffShortStat counts number of changed files, number of additions and deletions
func GetDiffShortStat(ctx context.Context, repoPath string, args ...CmdArg) (numFiles, totalAdditions, totalDeletions int, err error) {
func GetDiffShortStat(ctx context.Context, repoPath string, trustedArgs TrustedCmdArgs, dynamicArgs ...string) (numFiles, totalAdditions, totalDeletions int, err error) {
// Now if we call:
// $ git diff --shortstat 1ebb35b98889ff77299f24d82da426b434b0cca0...788b8b1440462d477f45b0088875
// we get:
// " 9902 files changed, 2034198 insertions(+), 298800 deletions(-)\n"
args = append([]CmdArg{
"diff",
"--shortstat",
}, args...)
stdout, _, err := NewCommand(ctx, args...).RunStdString(&RunOpts{Dir: repoPath})
cmd := NewCommand(ctx, "diff", "--shortstat").AddArguments(trustedArgs...).AddDynamicArguments(dynamicArgs...)
stdout, _, err := cmd.RunStdString(&RunOpts{Dir: repoPath})
if err != nil {
return 0, 0, 0, err
}

4
modules/git/repo_stats.go
View file

@ -40,7 +40,7 @@ func (repo *Repository) GetCodeActivityStats(fromTime time.Time, branch string)
since := fromTime.Format(time.RFC3339)
stdout, _, runErr := NewCommand(repo.Ctx, "rev-list", "--count", "--no-merges", "--branches=*", "--date=iso", CmdArg(fmt.Sprintf("--since='%s'", since))).RunStdString(&RunOpts{Dir: repo.Path})
stdout, _, runErr := NewCommand(repo.Ctx, "rev-list", "--count", "--no-merges", "--branches=*", "--date=iso").AddOptionFormat("--since='%s'", since).RunStdString(&RunOpts{Dir: repo.Path})
if runErr != nil {
return nil, runErr
}
@ -60,7 +60,7 @@ func (repo *Repository) GetCodeActivityStats(fromTime time.Time, branch string)
_ = stdoutWriter.Close()
}()
gitCmd := NewCommand(repo.Ctx, "log", "--numstat", "--no-merges", "--pretty=format:---%n%h%n%aN%n%aE%n", "--date=iso", CmdArg(fmt.Sprintf("--since='%s'", since)))
gitCmd := NewCommand(repo.Ctx, "log", "--numstat", "--no-merges", "--pretty=format:---%n%h%n%aN%n%aE%n", "--date=iso").AddOptionFormat("--since='%s'", since)
if len(branch) == 0 {
gitCmd.AddArguments("--branches=*")
} else {

4
modules/git/repo_tag.go
View file

@ -121,7 +121,9 @@ func (repo *Repository) GetTagInfos(page, pageSize int) ([]*Tag, int, error) {
rc := &RunOpts{Dir: repo.Path, Stdout: stdoutWriter, Stderr: &stderr}
go func() {
err := NewCommand(repo.Ctx, "for-each-ref", CmdArg("--format="+forEachRefFmt.Flag()), "--sort", "-*creatordate", "refs/tags").Run(rc)
err := NewCommand(repo.Ctx, "for-each-ref").
AddOptionFormat("--format=%s", forEachRefFmt.Flag()).
AddArguments("--sort", "-*creatordate", "refs/tags").Run(rc)
if err != nil {
_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderr.String()))
} else {

2
modules/git/repo_tag_nogogit.go
View file

@ -25,7 +25,7 @@ func (repo *Repository) IsTagExist(name string) bool {
// GetTags returns all tags of the repository.
// returning at most limit tags, or all if limit is 0.
func (repo *Repository) GetTags(skip, limit int) (tags []string, err error) {
tags, _, err = callShowRef(repo.Ctx, repo.Path, TagPrefix, []CmdArg{TagPrefix, "--sort=-taggerdate"}, skip, limit)
tags, _, err = callShowRef(repo.Ctx, repo.Path, TagPrefix, TrustedCmdArgs{TagPrefix, "--sort=-taggerdate"}, skip, limit)
return tags, err
}

3
modules/git/repo_tree.go
View file

@ -6,7 +6,6 @@ package git
import (
"bytes"
"fmt"
"os"
"strings"
"time"
@ -45,7 +44,7 @@ func (repo *Repository) CommitTree(author, committer *Signature, tree *Tree, opt
_, _ = messageBytes.WriteString("\n")
if opts.KeyID != "" || opts.AlwaysSign {
cmd.AddArguments(CmdArg(fmt.Sprintf("-S%s", opts.KeyID)))
cmd.AddOptionFormat("-S%s", opts.KeyID)
}
if opts.NoGPGSign {

13
modules/git/tree_nogogit.go
View file

@ -100,14 +100,15 @@ func (t *Tree) ListEntries() (Entries, error) {
// listEntriesRecursive returns all entries of current tree recursively including all subtrees
// extraArgs could be "-l" to get the size, which is slower
func (t *Tree) listEntriesRecursive(extraArgs ...CmdArg) (Entries, error) {
func (t *Tree) listEntriesRecursive(extraArgs TrustedCmdArgs) (Entries, error) {
if t.entriesRecursiveParsed {
return t.entriesRecursive, nil
}
args := append([]CmdArg{"ls-tree", "-t", "-r"}, extraArgs...)
args = append(args, CmdArg(t.ID.String()))
stdout, _, runErr := NewCommand(t.repo.Ctx, args...).RunStdBytes(&RunOpts{Dir: t.repo.Path})
stdout, _, runErr := NewCommand(t.repo.Ctx, "ls-tree", "-t", "-r").
AddArguments(extraArgs...).
AddDynamicArguments(t.ID.String()).
RunStdBytes(&RunOpts{Dir: t.repo.Path})
if runErr != nil {
return nil, runErr
}
@ -123,10 +124,10 @@ func (t *Tree) listEntriesRecursive(extraArgs ...CmdArg) (Entries, error) {
// ListEntriesRecursiveFast returns all entries of current tree recursively including all subtrees, no size
func (t *Tree) ListEntriesRecursiveFast() (Entries, error) {
return t.listEntriesRecursive()
return t.listEntriesRecursive(nil)
}
// ListEntriesRecursiveWithSize returns all entries of current tree recursively including all subtrees, with size
func (t *Tree) ListEntriesRecursiveWithSize() (Entries, error) {
return t.listEntriesRecursive("--long")
return t.listEntriesRecursive(TrustedCmdArgs{"--long"})
}