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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileContributor: Runxi Yu <https://runxiyu.org>
package main
import (
"net/http"
"strconv"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
func httpHandleRepoContribOne(w http.ResponseWriter, r *http.Request, params map[string]any) {
var mrIDStr string
var mrIDInt int
var err error
var title, status, srcRefStr, dstBranchStr string
var repo *git.Repository
var srcRefHash plumbing.Hash
var dstBranchHash plumbing.Hash
var srcCommit, dstCommit, mergeBaseCommit *object.Commit
var mergeBases []*object.Commit
mrIDStr = params["mr_id"].(string)
mrIDInt64, err := strconv.ParseInt(mrIDStr, 10, strconv.IntSize)
if err != nil {
http.Error(w, "Merge request ID not an integer: "+err.Error(), http.StatusBadRequest)
return
}
mrIDInt = int(mrIDInt64)
if err = database.QueryRow(r.Context(),
"SELECT COALESCE(title, ''), status, source_ref, COALESCE(destination_branch, '') FROM merge_requests WHERE id = $1",
mrIDInt,
).Scan(&title, &status, &srcRefStr, &dstBranchStr); err != nil {
http.Error(w, "Error querying merge request: "+err.Error(), http.StatusInternalServerError)
return
}
repo = params["repo"].(*git.Repository)
if srcRefHash, err = getRefHash(repo, "branch", srcRefStr); err != nil {
http.Error(w, "Error getting source ref hash: "+err.Error(), http.StatusInternalServerError)
return
}
if srcCommit, err = repo.CommitObject(srcRefHash); err != nil {
http.Error(w, "Error getting source commit: "+err.Error(), http.StatusInternalServerError)
return
}
params["source_commit"] = srcCommit
if dstBranchStr == "" {
dstBranchStr = "HEAD"
dstBranchHash, err = getRefHash(repo, "", "")
} else {
dstBranchHash, err = getRefHash(repo, "branch", dstBranchStr)
}
if err != nil {
http.Error(w, "Error getting destination branch hash: "+err.Error(), http.StatusInternalServerError)
return
}
if dstCommit, err = repo.CommitObject(dstBranchHash); err != nil {
http.Error(w, "Error getting destination commit: "+err.Error(), http.StatusInternalServerError)
return
}
params["destination_commit"] = dstCommit
if mergeBases, err = srcCommit.MergeBase(dstCommit); err != nil {
http.Error(w, "Error getting merge base: "+err.Error(), http.StatusInternalServerError)
return
}
mergeBaseCommit = mergeBases[0]
params["merge_base"] = mergeBaseCommit
patch, err := mergeBaseCommit.Patch(srcCommit)
if err != nil {
http.Error(w, "Error getting patch: "+err.Error(), http.StatusInternalServerError)
return
}
params["file_patches"] = makeUsableFilePatches(patch)
params["mr_title"], params["mr_status"], params["mr_source_ref"], params["mr_destination_branch"] = title, status, srcRefStr, dstBranchStr
renderTemplate(w, "repo_contrib_one", params)
}
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