| 1 | -- git_commands.lua |
| 2 | -- Index of git commands used for the git status site |
| 3 |
|
| 4 | -- Copyright (c) 2020 Joshua 'joshuas3' Stockin |
| 5 | -- <https://github.com/JoshuaS3/joshstock.in> |
| 6 | -- <https://joshstock.in> |
| 7 |
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| 8 |
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| 9 | local utils = require("utils") |
| 10 |
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| 11 |
|
| 12 | _M = {} |
| 13 |
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| 14 |
|
| 15 | local COMMANDS = { |
| 16 | get_number = "rev-list --count %s --", |
| 17 | get_commit = "log %s --pretty=format:'%%aI ## %%H ## %%an ## %%ae ## %%s ## %%b' -n 1 --", |
| 18 | get_branches = "branch --list --format='%(refname:lstrip=2)'", |
| 19 | list_commits = "log %s --pretty=format:'%%aI ## %%H ## %%an ## %%ae ## %%s' -n %d --skip=%d --", |
| 20 | get_diff = "show --pretty='' --numstat %s" |
| 21 | } |
| 22 |
|
| 23 |
|
| 24 | local execute = function(repo_dir, command) |
| 25 | local formatted_command = string.format( |
| 26 | "git --git-dir=%s/.git --work-tree=%s %s", |
| 27 | repo_dir, repo_dir, command |
| 28 | ) |
| 29 | local output |
| 30 | local status, err = pcall(function() |
| 31 | local process = io.popen(formatted_command, "r") |
| 32 | assert(process, "Error opening git process") |
| 33 | output = process:read("*all") |
| 34 | process:close() |
| 35 | end) |
| 36 | if status then |
| 37 | return output |
| 38 | else |
| 39 | return string.format("Error in git call: %s", err or "") |
| 40 | end |
| 41 | end |
| 42 |
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| 43 |
|
| 44 | local format_commit = function(commit_string, repo_dir, branch) |
| 45 | local raw_out = string.split(commit_string, " ## ") |
| 46 | local commit = {} |
| 47 | commit.date = raw_out[1] |
| 48 | commit.hash = raw_out[2] |
| 49 | commit.author = raw_out[3] |
| 50 | commit.email = raw_out[4] |
| 51 | commit.subject = raw_out[5] |
| 52 | commit.body = raw_out[6] |
| 53 | return commit |
| 54 | end |
| 55 |
|
| 56 |
|
| 57 | _M.get_number = function(repo_dir, commit_hash) |
| 58 | commit_hash = commit_hash or "HEAD" |
| 59 | local command = string.format(COMMANDS.get_number, commit_hash) |
| 60 | local raw_out = execute(repo_dir, command) |
| 61 | return tonumber(raw_out) |
| 62 | end |
| 63 |
|
| 64 |
|
| 65 | _M.get_commit = function(repo_dir, branch) |
| 66 | branch = branch or "HEAD" |
| 67 | local command = string.format(COMMANDS.get_commit, branch) |
| 68 | local raw_out = execute(repo_dir, command) |
| 69 | local commit = format_commit(raw_out) |
| 70 | commit.branch = branch |
| 71 | commit.number = _M.get_number(repo_dir, branch) |
| 72 | return commit |
| 73 | end |
| 74 |
|
| 75 |
|
| 76 | _M.get_diff = function(repo_dir, branch) |
| 77 | branch = branch or "HEAD" |
| 78 | local command = string.format(COMMANDS.get_diff, branch) |
| 79 | local raw_out = string.trim(execute(repo_dir, command)) |
| 80 | local diffs = {} |
| 81 | diffs.delta = 0 |
| 82 | diffs.max = 0 |
| 83 | diffs.files = {} |
| 84 | local files = string.split(raw_out, "\n") |
| 85 | for _, file in pairs(files) do |
| 86 | local diff = {} |
| 87 | local stats = string.split(file, "\t") |
| 88 | diff.plus = stats[1] |
| 89 | diff.minus = stats[2] |
| 90 | diff.file = stats[3] |
| 91 | table.insert(diffs.files, diff) |
| 92 | local total = diff.plus + diff.minus |
| 93 | local delta = diff.plus - diff.minus |
| 94 | if diffs.max < total then |
| 95 | diffs.max = total |
| 96 | end |
| 97 | diffs.delta = diffs.delta + delta |
| 98 | end |
| 99 | return diffs |
| 100 | end |
| 101 |
|
| 102 |
|
| 103 | _M.get_branches = function(repo_dir) |
| 104 | local raw_out = execute(repo_dir, COMMANDS.get_branches) |
| 105 | local trimmed = string.trim(raw_out) |
| 106 | return string.split(trimmed, "\n") |
| 107 | end |
| 108 |
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| 109 |
|
| 110 | _M.list_commits_by_page = function(repo_dir, branch, page_num, commits_per_page) |
| 111 | branch = branch or "HEAD" |
| 112 | page_num = page_num or 1 |
| 113 | commits_per_page = commits_per_page or 32 |
| 114 | local skip = commits_per_page * (page_num - 1) |
| 115 | local command = string.format(COMMANDS.list_commits, branch, commits_per_page, skip) |
| 116 | local raw_out = string.trim(execute(repo_dir, command)) |
| 117 | local commits = {} |
| 118 | for _, line in pairs(string.split(raw_out, "\n")) do |
| 119 | local commit = format_commit(line) |
| 120 | commit.branch = branch |
| 121 | commit.number = _M.get_number(repo_dir, commit.hash) |
| 122 | table.insert(commits, commit) |
| 123 | end |
| 124 | return commits |
| 125 | end |
| 126 |
|
| 127 |
|
| 128 | return _M |
| 129 |
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Index